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Annotation of src/usr.bin/openssl/openssl.1, Revision 1.79

1.79    ! jmc         1: .\" $OpenBSD: openssl.1,v 1.78 2016/09/20 16:40:05 jmc Exp $
1.1       jsing       2: .\" ====================================================================
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                     49: .\"
                     50: .\" This product includes cryptographic software written by Eric Young
                     51: .\" (eay@cryptsoft.com).  This product includes software written by Tim
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                     55: .\" Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
                     56: .\" All rights reserved.
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                     58: .\" This package is an SSL implementation written
                     59: .\" by Eric Young (eay@cryptsoft.com).
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                    112: .\"
                    113: .\" OPENSSL
                    114: .\"
1.79    ! jmc       115: .Dd $Mdocdate: September 20 2016 $
1.1       jsing     116: .Dt OPENSSL 1
                    117: .Os
                    118: .Sh NAME
                    119: .Nm openssl
                    120: .Nd OpenSSL command line tool
                    121: .Sh SYNOPSIS
                    122: .Nm
                    123: .Cm command
                    124: .Op Ar command_opts
                    125: .Op Ar command_args
                    126: .Pp
                    127: .Nm
1.13      bentley   128: .Cm list-standard-commands |
                    129: .Cm list-message-digest-commands |
                    130: .Cm list-cipher-commands |
                    131: .Cm list-cipher-algorithms |
                    132: .Cm list-message-digest-algorithms |
1.1       jsing     133: .Cm list-public-key-algorithms
                    134: .Pp
                    135: .Nm
1.39      jmc       136: .Cm no- Ns Ar command
1.1       jsing     137: .Sh DESCRIPTION
                    138: .Nm OpenSSL
1.31      jmc       139: is a cryptography toolkit implementing the
                    140: Transport Layer Security
1.1       jsing     141: .Pq TLS v1
1.31      jmc       142: network protocol,
                    143: as well as related cryptography standards.
1.1       jsing     144: .Pp
                    145: The
                    146: .Nm
                    147: program is a command line tool for using the various
                    148: cryptography functions of
1.39      jmc       149: .Nm openssl Ns 's
1.33      jmc       150: crypto library from the shell.
1.1       jsing     151: .Pp
                    152: The pseudo-commands
                    153: .Cm list-standard-commands , list-message-digest-commands ,
                    154: and
                    155: .Cm list-cipher-commands
                    156: output a list
                    157: .Pq one entry per line
                    158: of the names of all standard commands, message digest commands,
                    159: or cipher commands, respectively, that are available in the present
                    160: .Nm
                    161: utility.
                    162: .Pp
                    163: The pseudo-commands
                    164: .Cm list-cipher-algorithms
                    165: and
                    166: .Cm list-message-digest-algorithms
                    167: list all cipher and message digest names,
                    168: one entry per line.
                    169: Aliases are listed as:
                    170: .Pp
1.33      jmc       171: .D1 from => to
1.1       jsing     172: .Pp
                    173: The pseudo-command
                    174: .Cm list-public-key-algorithms
                    175: lists all supported public key algorithms.
                    176: .Pp
                    177: The pseudo-command
1.39      jmc       178: .Cm no- Ns Ar command
1.1       jsing     179: tests whether a command of the
                    180: specified name is available.
1.39      jmc       181: If
                    182: .Ar command
                    183: does not exist,
1.1       jsing     184: it returns 0
                    185: and prints
1.39      jmc       186: .Cm no- Ns Ar command ;
1.1       jsing     187: otherwise it returns 1 and prints
1.39      jmc       188: .Ar command .
                    189: In both cases, the output goes to stdout and nothing is printed to stderr.
1.1       jsing     190: Additional command line arguments are always ignored.
                    191: Since for each cipher there is a command of the same name,
                    192: this provides an easy way for shell scripts to test for the
                    193: availability of ciphers in the
                    194: .Nm
                    195: program.
                    196: .Pp
                    197: .Sy Note :
1.39      jmc       198: .Cm no- Ns Ar command
1.1       jsing     199: is not able to detect pseudo-commands such as
                    200: .Cm quit ,
                    201: .Cm list- Ns Ar ... Ns Cm -commands ,
                    202: or
1.39      jmc       203: .Cm no- Ns Ar command
1.1       jsing     204: itself.
                    205: .Sh ASN1PARSE
                    206: .nr nS 1
                    207: .Nm "openssl asn1parse"
                    208: .Op Fl i
                    209: .Op Fl dlimit Ar number
                    210: .Op Fl dump
                    211: .Op Fl genconf Ar file
                    212: .Op Fl genstr Ar str
                    213: .Op Fl in Ar file
1.34      jmc       214: .Op Fl inform Cm der | pem | txt
1.1       jsing     215: .Op Fl length Ar number
                    216: .Op Fl noout
                    217: .Op Fl offset Ar number
                    218: .Op Fl oid Ar file
                    219: .Op Fl out Ar file
                    220: .Op Fl strparse Ar offset
                    221: .nr nS 0
                    222: .Pp
                    223: The
                    224: .Nm asn1parse
                    225: command is a diagnostic utility that can parse ASN.1 structures.
                    226: It can also be used to extract data from ASN.1 formatted data.
                    227: .Pp
                    228: The options are as follows:
                    229: .Bl -tag -width Ds
                    230: .It Fl dlimit Ar number
                    231: Dump the first
                    232: .Ar number
                    233: bytes of unknown data in hex form.
                    234: .It Fl dump
                    235: Dump unknown data in hex form.
                    236: .It Fl genconf Ar file , Fl genstr Ar str
                    237: Generate encoded data based on string
                    238: .Ar str ,
                    239: file
                    240: .Ar file ,
1.34      jmc       241: or both, using the format described in
                    242: .Xr ASN1_generate_nconf 3 .
1.1       jsing     243: If only
                    244: .Ar file
                    245: is present then the string is obtained from the default section
                    246: using the name
                    247: .Dq asn1 .
                    248: The encoded data is passed through the ASN1 parser and printed out as
                    249: though it came from a file;
                    250: the contents can thus be examined and written to a file using the
                    251: .Fl out
                    252: option.
                    253: .It Fl i
1.34      jmc       254: Indent the output according to the
1.1       jsing     255: .Qq depth
                    256: of the structures.
                    257: .It Fl in Ar file
1.41      jmc       258: The input file to read from, or standard input if not specified.
1.34      jmc       259: .It Fl inform Cm der | pem | txt
1.1       jsing     260: The input format.
                    261: .It Fl length Ar number
1.34      jmc       262: Number of bytes to parse; the default is until end of file.
1.1       jsing     263: .It Fl noout
1.46      jmc       264: Do not output the parsed version of the input file.
1.1       jsing     265: .It Fl offset Ar number
1.34      jmc       266: Starting offset to begin parsing; the default is start of file.
1.1       jsing     267: .It Fl oid Ar file
                    268: A file containing additional object identifiers
                    269: .Pq OIDs .
                    270: If an OID
                    271: .Pq object identifier
                    272: is not part of
1.34      jmc       273: .Nm openssl Ns 's
1.1       jsing     274: internal table it will be represented in
                    275: numerical form
                    276: .Pq for example 1.2.3.4 .
1.34      jmc       277: .Pp
1.1       jsing     278: Each line consists of three columns:
                    279: the first column is the OID in numerical format and should be followed by
                    280: whitespace.
                    281: The second column is the
1.34      jmc       282: .Qq short name ,
1.1       jsing     283: which is a single word followed by whitespace.
                    284: The final column is the rest of the line and is the
                    285: .Qq long name .
                    286: .Nm asn1parse
                    287: displays the long name.
1.34      jmc       288: .It Fl out Ar file
                    289: The DER-encoded output file; the default is no encoded output
                    290: (useful when combined with
                    291: .Fl strparse ) .
                    292: .It Fl strparse Ar offset
                    293: Parse the content octets of the ASN.1 object starting at
                    294: .Ar offset .
                    295: This option can be used multiple times to
                    296: .Qq drill down
                    297: into a nested structure.
                    298: .El
1.1       jsing     299: .Sh CA
                    300: .nr nS 1
                    301: .Nm "openssl ca"
                    302: .Op Fl batch
                    303: .Op Fl cert Ar file
                    304: .Op Fl config Ar file
                    305: .Op Fl crl_CA_compromise Ar time
                    306: .Op Fl crl_compromise Ar time
                    307: .Op Fl crl_hold Ar instruction
                    308: .Op Fl crl_reason Ar reason
                    309: .Op Fl crldays Ar days
                    310: .Op Fl crlexts Ar section
                    311: .Op Fl crlhours Ar hours
                    312: .Op Fl days Ar arg
                    313: .Op Fl enddate Ar date
                    314: .Op Fl extensions Ar section
                    315: .Op Fl extfile Ar section
                    316: .Op Fl gencrl
                    317: .Op Fl in Ar file
                    318: .Op Fl infiles
                    319: .Op Fl key Ar keyfile
                    320: .Op Fl keyfile Ar arg
1.22      bcook     321: .Op Fl keyform Ar PEM
1.1       jsing     322: .Op Fl md Ar arg
                    323: .Op Fl msie_hack
                    324: .Op Fl name Ar section
                    325: .Op Fl noemailDN
                    326: .Op Fl notext
                    327: .Op Fl out Ar file
                    328: .Op Fl outdir Ar dir
                    329: .Op Fl passin Ar arg
                    330: .Op Fl policy Ar arg
                    331: .Op Fl preserveDN
                    332: .Op Fl revoke Ar file
                    333: .Op Fl spkac Ar file
                    334: .Op Fl ss_cert Ar file
                    335: .Op Fl startdate Ar date
                    336: .Op Fl status Ar serial
                    337: .Op Fl subj Ar arg
                    338: .Op Fl updatedb
                    339: .Op Fl verbose
                    340: .nr nS 0
                    341: .Pp
                    342: The
                    343: .Nm ca
1.35      jmc       344: command is a minimal certificate authority (CA) application.
1.1       jsing     345: It can be used to sign certificate requests in a variety of forms
1.35      jmc       346: and generate certificate revocation lists (CRLs).
1.1       jsing     347: It also maintains a text database of issued certificates and their status.
                    348: .Pp
1.35      jmc       349: The options relevant to CAs are as follows:
1.1       jsing     350: .Bl -tag -width "XXXX"
                    351: .It Fl batch
1.41      jmc       352: Batch mode.
1.1       jsing     353: In this mode no questions will be asked
                    354: and all certificates will be certified automatically.
                    355: .It Fl cert Ar file
                    356: The CA certificate file.
                    357: .It Fl config Ar file
1.72      jmc       358: Specify an alternative configuration file.
1.1       jsing     359: .It Fl days Ar arg
                    360: The number of days to certify the certificate for.
                    361: .It Fl enddate Ar date
1.41      jmc       362: Set the expiry date.
1.1       jsing     363: The format of the date is YYMMDDHHMMSSZ
                    364: .Pq the same as an ASN1 UTCTime structure .
                    365: .It Fl extensions Ar section
                    366: The section of the configuration file containing certificate extensions
                    367: to be added when a certificate is issued (defaults to
1.35      jmc       368: .Cm x509_extensions
1.1       jsing     369: unless the
                    370: .Fl extfile
                    371: option is used).
                    372: If no extension section is present, a V1 certificate is created.
                    373: If the extension section is present
                    374: .Pq even if it is empty ,
                    375: then a V3 certificate is created.
                    376: .It Fl extfile Ar file
                    377: An additional configuration
                    378: .Ar file
                    379: to read certificate extensions from
                    380: (using the default section unless the
                    381: .Fl extensions
                    382: option is also used).
                    383: .It Fl in Ar file
                    384: An input
                    385: .Ar file
                    386: containing a single certificate request to be signed by the CA.
                    387: .It Fl infiles
                    388: If present, this should be the last option; all subsequent arguments
                    389: are assumed to be the names of files containing certificate requests.
                    390: .It Fl key Ar keyfile
                    391: The password used to encrypt the private key.
1.35      jmc       392: Since on some systems the command line arguments are visible,
                    393: this option should be used with caution.
1.1       jsing     394: .It Fl keyfile Ar file
                    395: The private key to sign requests with.
1.22      bcook     396: .It Fl keyform Ar PEM
1.1       jsing     397: Private key file format.
                    398: .It Fl md Ar alg
                    399: The message digest to use.
                    400: Possible values include
                    401: .Ar md5
                    402: and
                    403: .Ar sha1 .
                    404: This option also applies to CRLs.
                    405: .It Fl msie_hack
                    406: This is a legacy option to make
                    407: .Nm ca
                    408: work with very old versions of the IE certificate enrollment control
                    409: .Qq certenr3 .
                    410: It used UniversalStrings for almost everything.
                    411: Since the old control has various security bugs,
                    412: its use is strongly discouraged.
                    413: The newer control
                    414: .Qq Xenroll
                    415: does not need this option.
                    416: .It Fl name Ar section
                    417: Specifies the configuration file
                    418: .Ar section
                    419: to use (overrides
                    420: .Cm default_ca
                    421: in the
                    422: .Cm ca
                    423: section).
                    424: .It Fl noemailDN
                    425: The DN of a certificate can contain the EMAIL field if present in the
1.30      mmcc      426: request DN, however it is good policy just having the email set into
1.1       jsing     427: the
1.35      jmc       428: .Cm altName
1.1       jsing     429: extension of the certificate.
                    430: When this option is set, the EMAIL field is removed from the certificate's
                    431: subject and set only in the, eventually present, extensions.
                    432: The
                    433: .Ar email_in_dn
                    434: keyword can be used in the configuration file to enable this behaviour.
                    435: .It Fl notext
                    436: Don't output the text form of a certificate to the output file.
                    437: .It Fl out Ar file
                    438: The output file to output certificates to.
                    439: The default is standard output.
                    440: The certificate details will also be printed out to this file.
                    441: .It Fl outdir Ar directory
                    442: The
                    443: .Ar directory
                    444: to output certificates to.
                    445: The certificate will be written to a file consisting of the
                    446: serial number in hex with
                    447: .Qq .pem
                    448: appended.
                    449: .It Fl passin Ar arg
                    450: The key password source.
                    451: .It Fl policy Ar arg
1.41      jmc       452: Define the CA
1.1       jsing     453: .Qq policy
                    454: to use.
1.35      jmc       455: The policy section in the configuration file
                    456: consists of a set of variables corresponding to certificate DN fields.
                    457: The values may be one of
                    458: .Qq match
                    459: (the value must match the same field in the CA certificate),
                    460: .Qq supplied
                    461: (the value must be present), or
                    462: .Qq optional
                    463: (the value may be present).
                    464: Any fields not mentioned in the policy section
                    465: are silently deleted, unless the
                    466: .Fl preserveDN
                    467: option is set,
                    468: but this can be regarded more of a quirk than intended behaviour.
1.1       jsing     469: .It Fl preserveDN
                    470: Normally, the DN order of a certificate is the same as the order of the
                    471: fields in the relevant policy section.
                    472: When this option is set, the order is the same as the request.
                    473: This is largely for compatibility with the older IE enrollment control
                    474: which would only accept certificates if their DNs matched the order of the
                    475: request.
                    476: This is not needed for Xenroll.
                    477: .It Fl spkac Ar file
                    478: A file containing a single Netscape signed public key and challenge,
                    479: and additional field values to be signed by the CA.
1.35      jmc       480: This will usually come from the
                    481: KEYGEN tag in an HTML form to create a new private key.
                    482: It is, however, possible to create SPKACs using the
                    483: .Nm spkac
                    484: utility.
                    485: .Pp
                    486: The file should contain the variable SPKAC set to the value of
                    487: the SPKAC and also the required DN components as name value pairs.
                    488: If it's necessary to include the same component twice,
                    489: then it can be preceded by a number and a
                    490: .Sq \&. .
1.1       jsing     491: .It Fl ss_cert Ar file
                    492: A single self-signed certificate to be signed by the CA.
                    493: .It Fl startdate Ar date
1.41      jmc       494: Set the start date.
1.1       jsing     495: The format of the date is YYMMDDHHMMSSZ
                    496: .Pq the same as an ASN1 UTCTime structure .
                    497: .It Fl status Ar serial
1.35      jmc       498: Show the status of the certificate with serial number
1.1       jsing     499: .Ar serial .
                    500: .It Fl updatedb
                    501: Update database for expired certificates.
                    502: .It Fl verbose
1.41      jmc       503: Print extra details about the operations being performed.
1.1       jsing     504: .El
1.35      jmc       505: .Pp
                    506: The options relevant to CRLs are as follows:
1.1       jsing     507: .Bl -tag -width "XXXX"
                    508: .It Fl crl_CA_compromise Ar time
                    509: This is the same as
                    510: .Fl crl_compromise ,
                    511: except the revocation reason is set to CACompromise.
                    512: .It Fl crl_compromise Ar time
1.41      jmc       513: Set the revocation reason to keyCompromise and the compromise time to
1.1       jsing     514: .Ar time .
                    515: .Ar time
                    516: should be in GeneralizedTime format, i.e. YYYYMMDDHHMMSSZ.
                    517: .It Fl crl_hold Ar instruction
1.41      jmc       518: Set the CRL revocation reason code to certificateHold and the hold
1.1       jsing     519: instruction to
                    520: .Ar instruction
                    521: which must be an OID.
                    522: Although any OID can be used, only holdInstructionNone
                    523: (the use of which is discouraged by RFC 2459), holdInstructionCallIssuer or
                    524: holdInstructionReject will normally be used.
                    525: .It Fl crl_reason Ar reason
                    526: Revocation reason, where
                    527: .Ar reason
                    528: is one of:
                    529: unspecified, keyCompromise, CACompromise, affiliationChanged, superseded,
                    530: cessationOfOperation, certificateHold or removeFromCRL.
                    531: The matching of
                    532: .Ar reason
                    533: is case insensitive.
                    534: Setting any revocation reason will make the CRL v2.
                    535: In practice, removeFromCRL is not particularly useful because it is only used
                    536: in delta CRLs which are not currently implemented.
                    537: .It Fl crldays Ar num
                    538: The number of days before the next CRL is due.
                    539: This is the days from now to place in the CRL
1.35      jmc       540: .Cm nextUpdate
1.1       jsing     541: field.
                    542: .It Fl crlexts Ar section
                    543: The
                    544: .Ar section
                    545: of the configuration file containing CRL extensions to include.
                    546: If no CRL extension section is present then a V1 CRL is created;
                    547: if the CRL extension section is present
                    548: .Pq even if it is empty
                    549: then a V2 CRL is created.
                    550: The CRL extensions specified are CRL extensions and
                    551: .Em not
                    552: CRL entry extensions.
                    553: It should be noted that some software
                    554: .Pq for example Netscape
                    555: can't handle V2 CRLs.
                    556: .It Fl crlhours Ar num
                    557: The number of hours before the next CRL is due.
                    558: .It Fl gencrl
1.41      jmc       559: Generate a CRL based on information in the index file.
1.1       jsing     560: .It Fl revoke Ar file
                    561: A
                    562: .Ar file
                    563: containing a certificate to revoke.
                    564: .It Fl subj Ar arg
                    565: Supersedes the subject name given in the request.
                    566: The
                    567: .Ar arg
                    568: must be formatted as
                    569: .Ar /type0=value0/type1=value1/type2=... ;
                    570: characters may be escaped by
                    571: .Sq \e
                    572: .Pq backslash ,
                    573: no spaces are skipped.
                    574: .El
                    575: .Pp
1.35      jmc       576: Many of the options can be set in the
                    577: .Cm ca
                    578: section of the configuration file
                    579: (or in the default section of the configuration file),
                    580: specified using
                    581: .Cm default_ca
                    582: or
                    583: .Fl name .
                    584: The options
                    585: .Cm preserve
                    586: and
                    587: .Cm msie_hack
                    588: are read directly from the
                    589: .Cm ca
                    590: section.
1.1       jsing     591: .Pp
                    592: Many of the configuration file options are identical to command line
                    593: options.
                    594: Where the option is present in the configuration file and the command line,
                    595: the command line value is used.
                    596: Where an option is described as mandatory, then it must be present in
                    597: the configuration file or the command line equivalent
                    598: .Pq if any
                    599: used.
                    600: .Bl -tag -width "XXXX"
1.35      jmc       601: .It Cm certificate
1.1       jsing     602: The same as
                    603: .Fl cert .
                    604: It gives the file containing the CA certificate.
                    605: Mandatory.
1.35      jmc       606: .It Cm copy_extensions
1.1       jsing     607: Determines how extensions in certificate requests should be handled.
                    608: If set to
1.35      jmc       609: .Cm none
1.1       jsing     610: or this option is not present, then extensions are
                    611: ignored and not copied to the certificate.
                    612: If set to
1.35      jmc       613: .Cm copy ,
1.1       jsing     614: then any extensions present in the request that are not already present
                    615: are copied to the certificate.
                    616: If set to
1.35      jmc       617: .Cm copyall ,
1.1       jsing     618: then all extensions in the request are copied to the certificate:
                    619: if the extension is already present in the certificate it is deleted first.
1.35      jmc       620: .Pp
                    621: The
                    622: .Cm copy_extensions
                    623: option should be used with caution.
                    624: If care is not taken, it can be a security risk.
                    625: For example, if a certificate request contains a
                    626: .Cm basicConstraints
                    627: extension with CA:TRUE and the
                    628: .Cm copy_extensions
                    629: value is set to
                    630: .Cm copyall
                    631: and the user does not spot
                    632: this when the certificate is displayed, then this will hand the requestor
                    633: a valid CA certificate.
                    634: .Pp
                    635: This situation can be avoided by setting
                    636: .Cm copy_extensions
                    637: to
                    638: .Cm copy
                    639: and including
                    640: .Cm basicConstraints
                    641: with CA:FALSE in the configuration file.
                    642: Then if the request contains a
                    643: .Cm basicConstraints
                    644: extension, it will be ignored.
1.1       jsing     645: .Pp
                    646: The main use of this option is to allow a certificate request to supply
                    647: values for certain extensions such as
1.35      jmc       648: .Cm subjectAltName .
                    649: .It Cm crl_extensions
1.1       jsing     650: The same as
                    651: .Fl crlexts .
1.35      jmc       652: .It Cm crlnumber
1.1       jsing     653: A text file containing the next CRL number to use in hex.
                    654: The CRL number will be inserted in the CRLs only if this file exists.
                    655: If this file is present, it must contain a valid CRL number.
1.35      jmc       656: .It Cm database
1.1       jsing     657: The text database file to use.
                    658: Mandatory.
                    659: This file must be present, though initially it will be empty.
1.35      jmc       660: .It Cm default_crl_hours , default_crl_days
1.1       jsing     661: The same as the
                    662: .Fl crlhours
                    663: and
                    664: .Fl crldays
                    665: options.
                    666: These will only be used if neither command line option is present.
                    667: At least one of these must be present to generate a CRL.
1.35      jmc       668: .It Cm default_days
1.1       jsing     669: The same as the
                    670: .Fl days
                    671: option.
                    672: The number of days to certify a certificate for.
1.35      jmc       673: .It Cm default_enddate
1.1       jsing     674: The same as the
                    675: .Fl enddate
                    676: option.
                    677: Either this option or
1.35      jmc       678: .Cm default_days
1.1       jsing     679: .Pq or the command line equivalents
                    680: must be present.
1.35      jmc       681: .It Cm default_md
1.1       jsing     682: The same as the
                    683: .Fl md
                    684: option.
                    685: The message digest to use.
                    686: Mandatory.
1.35      jmc       687: .It Cm default_startdate
1.1       jsing     688: The same as the
                    689: .Fl startdate
                    690: option.
                    691: The start date to certify a certificate for.
                    692: If not set, the current time is used.
1.35      jmc       693: .It Cm email_in_dn
1.1       jsing     694: The same as
                    695: .Fl noemailDN .
                    696: If the EMAIL field is to be removed from the DN of the certificate,
                    697: simply set this to
                    698: .Qq no .
                    699: If not present, the default is to allow for the EMAIL field in the
                    700: certificate's DN.
1.35      jmc       701: .It Cm msie_hack
1.1       jsing     702: The same as
                    703: .Fl msie_hack .
1.35      jmc       704: .It Cm name_opt , cert_opt
1.1       jsing     705: These options allow the format used to display the certificate details
                    706: when asking the user to confirm signing.
                    707: All the options supported by the
                    708: .Nm x509
                    709: utilities'
                    710: .Fl nameopt
                    711: and
                    712: .Fl certopt
                    713: switches can be used here, except that
1.35      jmc       714: .Cm no_signame
1.1       jsing     715: and
1.35      jmc       716: .Cm no_sigdump
1.1       jsing     717: are permanently set and cannot be disabled
                    718: (this is because the certificate signature cannot be displayed because
                    719: the certificate has not been signed at this point).
                    720: .Pp
                    721: For convenience, the value
1.35      jmc       722: .Cm ca_default
1.1       jsing     723: is accepted by both to produce a reasonable output.
                    724: .Pp
                    725: If neither option is present, the format used in earlier versions of
1.35      jmc       726: .Nm openssl
1.1       jsing     727: is used.
                    728: Use of the old format is
                    729: .Em strongly
                    730: discouraged because it only displays fields mentioned in the
1.35      jmc       731: .Cm policy
1.1       jsing     732: section,
                    733: mishandles multicharacter string types and does not display extensions.
1.35      jmc       734: .It Cm new_certs_dir
1.1       jsing     735: The same as the
                    736: .Fl outdir
                    737: command line option.
                    738: It specifies the directory where new certificates will be placed.
                    739: Mandatory.
1.35      jmc       740: .It Cm oid_file
1.1       jsing     741: This specifies a file containing additional object identifiers.
                    742: Each line of the file should consist of the numerical form of the
                    743: object identifier followed by whitespace, then the short name followed
                    744: by whitespace and finally the long name.
1.35      jmc       745: .It Cm oid_section
1.1       jsing     746: This specifies a section in the configuration file containing extra
                    747: object identifiers.
                    748: Each line should consist of the short name of the object identifier
                    749: followed by
                    750: .Sq =
                    751: and the numerical form.
                    752: The short and long names are the same when this option is used.
1.35      jmc       753: .It Cm policy
1.1       jsing     754: The same as
                    755: .Fl policy .
                    756: Mandatory.
1.35      jmc       757: .It Cm preserve
1.1       jsing     758: The same as
                    759: .Fl preserveDN .
1.35      jmc       760: .It Cm private_key
1.1       jsing     761: Same as the
                    762: .Fl keyfile
                    763: option.
                    764: The file containing the CA private key.
                    765: Mandatory.
1.35      jmc       766: .It Cm serial
1.1       jsing     767: A text file containing the next serial number to use in hex.
                    768: Mandatory.
                    769: This file must be present and contain a valid serial number.
1.35      jmc       770: .It Cm unique_subject
1.1       jsing     771: If the value
1.35      jmc       772: .Cm yes
1.1       jsing     773: is given, the valid certificate entries in the
                    774: database must have unique subjects.
                    775: If the value
1.35      jmc       776: .Cm no
1.1       jsing     777: is given,
                    778: several valid certificate entries may have the exact same subject.
                    779: The default value is
1.35      jmc       780: .Cm yes .
                    781: .It Cm x509_extensions
1.1       jsing     782: The same as
                    783: .Fl extensions .
                    784: .El
                    785: .Sh CIPHERS
                    786: .Nm openssl ciphers
                    787: .Op Fl hVv
1.18      jmc       788: .Op Fl tls1
1.1       jsing     789: .Op Ar cipherlist
                    790: .Pp
                    791: The
                    792: .Nm ciphers
                    793: command converts
1.36      jmc       794: .Nm openssl
1.1       jsing     795: cipher lists into ordered SSL cipher preference lists.
1.41      jmc       796: It can be used as a way to determine the appropriate cipher list.
1.1       jsing     797: .Pp
                    798: The options are as follows:
                    799: .Bl -tag -width Ds
                    800: .It Fl h , \&?
                    801: Print a brief usage message.
                    802: .It Fl tls1
                    803: Only include TLS v1 ciphers.
                    804: .It Fl V
1.36      jmc       805: Verbose.
                    806: List ciphers with a complete description of protocol version,
                    807: key exchange, authentication, encryption and mac algorithms,
                    808: any key size restrictions,
                    809: and cipher suite codes (hex format).
                    810: .It Fl v
1.1       jsing     811: Like
1.36      jmc       812: .Fl V ,
                    813: but without cipher suite codes.
1.1       jsing     814: .It Ar cipherlist
                    815: A cipher list to convert to a cipher preference list.
                    816: If it is not included, the default cipher list will be used.
1.36      jmc       817: .Pp
                    818: The cipher list consists of one or more cipher strings
1.1       jsing     819: separated by colons.
                    820: Commas or spaces are also acceptable separators, but colons are normally used.
                    821: .Pp
1.36      jmc       822: The actual cipher string can take several different forms:
1.1       jsing     823: .Pp
1.36      jmc       824: It can consist of a single cipher suite, such as RC4-SHA.
1.1       jsing     825: .Pp
                    826: It can represent a list of cipher suites containing a certain algorithm,
                    827: or cipher suites of a certain type.
1.36      jmc       828: For example SHA1 represents all cipher suites using the digest algorithm SHA1.
                    829: .Pp
                    830: Lists of cipher suites can be combined in a single cipher string using the
1.1       jsing     831: .Sq +
1.36      jmc       832: character
                    833: (logical AND operation).
                    834: For example, SHA1+DES represents all cipher suites
                    835: containing the SHA1 and DES algorithms.
1.1       jsing     836: .Pp
                    837: Each cipher string can be optionally preceded by the characters
                    838: .Sq \&! ,
                    839: .Sq - ,
                    840: or
                    841: .Sq + .
                    842: If
                    843: .Sq !\&
                    844: is used, then the ciphers are permanently deleted from the list.
                    845: The ciphers deleted can never reappear in the list even if they are
                    846: explicitly stated.
                    847: If
                    848: .Sq -
                    849: is used, then the ciphers are deleted from the list, but some or
                    850: all of the ciphers can be added again by later options.
                    851: If
                    852: .Sq +
                    853: is used, then the ciphers are moved to the end of the list.
                    854: This option doesn't add any new ciphers, it just moves matching existing ones.
                    855: .Pp
                    856: If none of these characters is present, the string is just interpreted
                    857: as a list of ciphers to be appended to the current preference list.
                    858: If the list includes any ciphers already present, they will be ignored;
                    859: that is, they will not be moved to the end of the list.
                    860: .Pp
                    861: Additionally, the cipher string
1.36      jmc       862: .Cm @STRENGTH
1.1       jsing     863: can be used at any point to sort the current cipher list in order of
                    864: encryption algorithm key length.
1.36      jmc       865: .El
                    866: .Pp
1.1       jsing     867: The following is a list of all permitted cipher strings and their meanings.
                    868: .Bl -tag -width "XXXX"
1.36      jmc       869: .It Cm DEFAULT
1.1       jsing     870: The default cipher list.
                    871: This is determined at compile time and is currently
1.36      jmc       872: .Cm ALL:!aNULL:!eNULL:!SSLv2 .
                    873: This must be the first cipher string specified.
                    874: .It Cm COMPLEMENTOFDEFAULT
1.1       jsing     875: The ciphers included in
1.36      jmc       876: .Cm ALL ,
1.1       jsing     877: but not enabled by default.
                    878: Currently this is
1.36      jmc       879: .Cm ADH .
1.1       jsing     880: Note that this rule does not cover
1.36      jmc       881: .Cm eNULL ,
1.1       jsing     882: which is not included by
1.36      jmc       883: .Cm ALL
1.1       jsing     884: (use
1.36      jmc       885: .Cm COMPLEMENTOFALL
1.1       jsing     886: if necessary).
1.36      jmc       887: .It Cm ALL
1.1       jsing     888: All cipher suites except the
1.36      jmc       889: .Cm eNULL
                    890: ciphers, which must be explicitly enabled.
                    891: .It Cm COMPLEMENTOFALL
1.1       jsing     892: The cipher suites not enabled by
1.36      jmc       893: .Cm ALL ,
1.1       jsing     894: currently being
1.36      jmc       895: .Cm eNULL .
                    896: .It Cm HIGH
1.1       jsing     897: .Qq High
                    898: encryption cipher suites.
                    899: This currently means those with key lengths larger than 128 bits.
1.36      jmc       900: .It Cm MEDIUM
1.1       jsing     901: .Qq Medium
                    902: encryption cipher suites, currently those using 128-bit encryption.
1.36      jmc       903: .It Cm LOW
1.1       jsing     904: .Qq Low
                    905: encryption cipher suites, currently those using 64- or 56-bit encryption
1.9       lteo      906: algorithms.
1.36      jmc       907: .It Cm eNULL , NULL
1.1       jsing     908: The
                    909: .Qq NULL
                    910: ciphers; that is, those offering no encryption.
                    911: Because these offer no encryption at all and are a security risk,
                    912: they are disabled unless explicitly included.
1.36      jmc       913: .It Cm aNULL
1.1       jsing     914: The cipher suites offering no authentication.
                    915: This is currently the anonymous DH algorithms.
                    916: These cipher suites are vulnerable to a
                    917: .Qq man in the middle
                    918: attack, so their use is normally discouraged.
1.36      jmc       919: .It Cm kRSA , RSA
1.1       jsing     920: Cipher suites using RSA key exchange.
1.36      jmc       921: .It Cm kEDH
1.1       jsing     922: Cipher suites using ephemeral DH key agreement.
1.36      jmc       923: .It Cm aRSA
1.1       jsing     924: Cipher suites using RSA authentication, i.e. the certificates carry RSA keys.
1.36      jmc       925: .It Cm aDSS , DSS
1.1       jsing     926: Cipher suites using DSS authentication, i.e. the certificates carry DSS keys.
1.36      jmc       927: .It Cm TLSv1
1.18      jmc       928: TLS v1.0 cipher suites.
1.36      jmc       929: .It Cm DH
1.1       jsing     930: Cipher suites using DH, including anonymous DH.
1.36      jmc       931: .It Cm ADH
1.1       jsing     932: Anonymous DH cipher suites.
1.36      jmc       933: .It Cm AES
1.1       jsing     934: Cipher suites using AES.
1.36      jmc       935: .It Cm 3DES
1.1       jsing     936: Cipher suites using triple DES.
1.36      jmc       937: .It Cm DES
1.1       jsing     938: Cipher suites using DES
                    939: .Pq not triple DES .
1.36      jmc       940: .It Cm RC4
1.1       jsing     941: Cipher suites using RC4.
1.36      jmc       942: .It Cm CAMELLIA
1.9       lteo      943: Cipher suites using Camellia.
1.36      jmc       944: .It Cm CHACHA20
1.9       lteo      945: Cipher suites using ChaCha20.
1.36      jmc       946: .It Cm IDEA
1.9       lteo      947: Cipher suites using IDEA.
1.36      jmc       948: .It Cm MD5
1.1       jsing     949: Cipher suites using MD5.
1.36      jmc       950: .It Cm SHA1 , SHA
1.1       jsing     951: Cipher suites using SHA1.
                    952: .El
                    953: .Sh CRL
                    954: .nr nS 1
                    955: .Nm "openssl crl"
                    956: .Op Fl CAfile Ar file
                    957: .Op Fl CApath Ar dir
                    958: .Op Fl fingerprint
                    959: .Op Fl hash
                    960: .Op Fl in Ar file
1.38      jmc       961: .Op Fl inform Cm der | pem
1.1       jsing     962: .Op Fl issuer
                    963: .Op Fl lastupdate
                    964: .Op Fl nextupdate
                    965: .Op Fl noout
                    966: .Op Fl out Ar file
1.38      jmc       967: .Op Fl outform Cm der | pem
1.1       jsing     968: .Op Fl text
                    969: .nr nS 0
                    970: .Pp
                    971: The
                    972: .Nm crl
                    973: command processes CRL files in DER or PEM format.
1.37      jmc       974: .Pp
1.1       jsing     975: The options are as follows:
                    976: .Bl -tag -width Ds
                    977: .It Fl CAfile Ar file
                    978: Verify the signature on a CRL by looking up the issuing certificate in
                    979: .Ar file .
                    980: .It Fl CApath Ar directory
                    981: Verify the signature on a CRL by looking up the issuing certificate in
                    982: .Ar dir .
                    983: This directory must be a standard certificate directory,
                    984: i.e. a hash of each subject name (using
                    985: .Cm x509 Fl hash )
                    986: should be linked to each certificate.
                    987: .It Fl fingerprint
                    988: Print the CRL fingerprint.
                    989: .It Fl hash
                    990: Output a hash of the issuer name.
                    991: This can be used to look up CRLs in a directory by issuer name.
                    992: .It Fl in Ar file
1.37      jmc       993: The input file to read from, or standard input if not specified.
1.38      jmc       994: .It Fl inform Cm der | pem
1.37      jmc       995: The input format.
1.1       jsing     996: .It Fl issuer
                    997: Output the issuer name.
                    998: .It Fl lastupdate
                    999: Output the
1.37      jmc      1000: .Cm lastUpdate
1.1       jsing    1001: field.
                   1002: .It Fl nextupdate
                   1003: Output the
1.37      jmc      1004: .Cm nextUpdate
1.1       jsing    1005: field.
                   1006: .It Fl noout
1.46      jmc      1007: Do not output the encoded version of the CRL.
1.1       jsing    1008: .It Fl out Ar file
1.37      jmc      1009: The output file to write to, or standard output if not specified.
1.38      jmc      1010: .It Fl outform Cm der | pem
1.37      jmc      1011: The output format.
1.1       jsing    1012: .It Fl text
1.64      jmc      1013: Print the CRL in plain text.
1.1       jsing    1014: .El
                   1015: .Sh CRL2PKCS7
                   1016: .nr nS 1
                   1017: .Nm "openssl crl2pkcs7"
                   1018: .Op Fl certfile Ar file
                   1019: .Op Fl in Ar file
1.40      jmc      1020: .Op Fl inform Cm der | pem
1.1       jsing    1021: .Op Fl nocrl
                   1022: .Op Fl out Ar file
1.40      jmc      1023: .Op Fl outform Cm der | pem
1.1       jsing    1024: .nr nS 0
                   1025: .Pp
                   1026: The
                   1027: .Nm crl2pkcs7
                   1028: command takes an optional CRL and one or more
                   1029: certificates and converts them into a PKCS#7 degenerate
                   1030: .Qq certificates only
                   1031: structure.
                   1032: .Pp
                   1033: The options are as follows:
                   1034: .Bl -tag -width Ds
                   1035: .It Fl certfile Ar file
1.40      jmc      1036: Add the certificates in PEM
1.1       jsing    1037: .Ar file
1.40      jmc      1038: to the PKCS#7 structure.
                   1039: This option can be used more than once
                   1040: to read certificates from multiple files.
1.1       jsing    1041: .It Fl in Ar file
1.40      jmc      1042: Read the CRL from
                   1043: .Ar file ,
                   1044: or standard input if not specified.
                   1045: .It Fl inform Cm der | pem
1.64      jmc      1046: The input format.
1.1       jsing    1047: .It Fl nocrl
                   1048: Normally, a CRL is included in the output file.
                   1049: With this option, no CRL is
                   1050: included in the output file and a CRL is not read from the input file.
                   1051: .It Fl out Ar file
1.40      jmc      1052: Write the PKCS#7 structure to
                   1053: .Ar file ,
                   1054: or standard output if not specified.
                   1055: .It Fl outform Cm der | pem
1.64      jmc      1056: The output format.
1.1       jsing    1057: .El
                   1058: .Sh DGST
                   1059: .nr nS 1
                   1060: .Nm "openssl dgst"
1.43      jmc      1061: .Op Fl cd
1.1       jsing    1062: .Op Fl binary
1.43      jmc      1063: .Op Fl Ar digest
1.1       jsing    1064: .Op Fl hex
                   1065: .Op Fl hmac Ar key
1.43      jmc      1066: .Op Fl keyform Cm pem
1.1       jsing    1067: .Op Fl mac Ar algorithm
                   1068: .Op Fl macopt Ar nm : Ns Ar v
                   1069: .Op Fl out Ar file
                   1070: .Op Fl passin Ar arg
                   1071: .Op Fl prverify Ar file
                   1072: .Op Fl sign Ar file
                   1073: .Op Fl signature Ar file
                   1074: .Op Fl sigopt Ar nm : Ns Ar v
                   1075: .Op Fl verify Ar file
                   1076: .Op Ar
                   1077: .nr nS 0
                   1078: .Pp
                   1079: The digest functions output the message digest of a supplied
                   1080: .Ar file
                   1081: or
                   1082: .Ar files
                   1083: in hexadecimal form.
                   1084: They can also be used for digital signing and verification.
                   1085: .Pp
                   1086: The options are as follows:
                   1087: .Bl -tag -width Ds
                   1088: .It Fl binary
                   1089: Output the digest or signature in binary form.
                   1090: .It Fl c
1.48      jmc      1091: Print the digest in two-digit groups separated by colons.
1.1       jsing    1092: .It Fl d
1.48      jmc      1093: Print BIO debugging information.
1.43      jmc      1094: .It Fl Ar digest
                   1095: Use the specified message
                   1096: .Ar digest .
                   1097: The default is MD5.
                   1098: The available digests can be displayed using
                   1099: .Nm openssl
                   1100: .Cm list-message-digest-commands .
                   1101: The following are equivalent:
                   1102: .Nm openssl dgst
                   1103: .Fl md5
                   1104: and
                   1105: .Nm openssl
                   1106: .Cm md5 .
1.1       jsing    1107: .It Fl hex
                   1108: Digest is to be output as a hex dump.
                   1109: This is the default case for a
                   1110: .Qq normal
                   1111: digest as opposed to a digital signature.
                   1112: .It Fl hmac Ar key
                   1113: Create a hashed MAC using
                   1114: .Ar key .
1.43      jmc      1115: .It Fl keyform Cm pem
1.1       jsing    1116: Specifies the key format to sign the digest with.
                   1117: .It Fl mac Ar algorithm
                   1118: Create a keyed Message Authentication Code (MAC).
                   1119: The most popular MAC algorithm is HMAC (hash-based MAC),
                   1120: but there are other MAC algorithms which are not based on hash.
                   1121: MAC keys and other options should be set via the
                   1122: .Fl macopt
                   1123: parameter.
                   1124: .It Fl macopt Ar nm : Ns Ar v
                   1125: Passes options to the MAC algorithm, specified by
                   1126: .Fl mac .
                   1127: The following options are supported by HMAC:
                   1128: .Bl -tag -width Ds
1.43      jmc      1129: .It Cm key : Ns Ar string
1.1       jsing    1130: Specifies the MAC key as an alphanumeric string
                   1131: (use if the key contain printable characters only).
                   1132: String length must conform to any restrictions of the MAC algorithm.
1.43      jmc      1133: .It Cm hexkey : Ns Ar string
1.1       jsing    1134: Specifies the MAC key in hexadecimal form (two hex digits per byte).
                   1135: Key length must conform to any restrictions of the MAC algorithm.
                   1136: .El
                   1137: .It Fl out Ar file
1.43      jmc      1138: The output file to write to,
                   1139: or standard output if not specified.
1.1       jsing    1140: .It Fl passin Ar arg
                   1141: The key password source.
                   1142: .It Fl prverify Ar file
                   1143: Verify the signature using the private key in
                   1144: .Ar file .
                   1145: The output is either
                   1146: .Qq Verification OK
                   1147: or
                   1148: .Qq Verification Failure .
                   1149: .It Fl sign Ar file
                   1150: Digitally sign the digest using the private key in
                   1151: .Ar file .
                   1152: .It Fl signature Ar file
                   1153: The actual signature to verify.
                   1154: .It Fl sigopt Ar nm : Ns Ar v
                   1155: Pass options to the signature algorithm during sign or verify operations.
                   1156: The names and values of these options are algorithm-specific.
                   1157: .It Fl verify Ar file
                   1158: Verify the signature using the public key in
                   1159: .Ar file .
                   1160: The output is either
                   1161: .Qq Verification OK
                   1162: or
                   1163: .Qq Verification Failure .
                   1164: .It Ar
                   1165: File or files to digest.
                   1166: If no files are specified then standard input is used.
                   1167: .El
                   1168: .Sh DHPARAM
                   1169: .nr nS 1
                   1170: .Nm "openssl dhparam"
                   1171: .Op Fl 2 | 5
                   1172: .Op Fl C
                   1173: .Op Fl check
                   1174: .Op Fl dsaparam
                   1175: .Op Fl in Ar file
1.44      jmc      1176: .Op Fl inform Cm der | pem
1.1       jsing    1177: .Op Fl noout
                   1178: .Op Fl out Ar file
1.44      jmc      1179: .Op Fl outform Cm der | pem
1.1       jsing    1180: .Op Fl text
                   1181: .Op Ar numbits
                   1182: .nr nS 0
                   1183: .Pp
                   1184: The
                   1185: .Nm dhparam
                   1186: command is used to manipulate DH parameter files.
1.44      jmc      1187: Only the older PKCS#3 DH is supported,
                   1188: not the newer X9.42 DH.
1.1       jsing    1189: .Pp
                   1190: The options are as follows:
                   1191: .Bl -tag -width Ds
                   1192: .It Fl 2 , 5
1.44      jmc      1193: The generator to use;
1.1       jsing    1194: 2 is the default.
                   1195: If present, the input file is ignored and parameters are generated instead.
                   1196: .It Fl C
1.44      jmc      1197: Convert the parameters into C code.
1.1       jsing    1198: The parameters can then be loaded by calling the
1.44      jmc      1199: .No get_dh Ns Ar numbits
1.1       jsing    1200: function.
                   1201: .It Fl check
                   1202: Check the DH parameters.
                   1203: .It Fl dsaparam
1.44      jmc      1204: Read or create DSA parameters,
                   1205: converted to DH format on output.
1.1       jsing    1206: Otherwise,
                   1207: .Qq strong
                   1208: primes
                   1209: .Pq such that (p-1)/2 is also prime
                   1210: will be used for DH parameter generation.
                   1211: .Pp
                   1212: DH parameter generation with the
                   1213: .Fl dsaparam
                   1214: option is much faster,
                   1215: and the recommended exponent length is shorter,
                   1216: which makes DH key exchange more efficient.
                   1217: Beware that with such DSA-style DH parameters,
                   1218: a fresh DH key should be created for each use to
                   1219: avoid small-subgroup attacks that may be possible otherwise.
                   1220: .It Fl in Ar file
1.44      jmc      1221: The input file to read from,
                   1222: or standard input if not specified.
                   1223: .It Fl inform Cm der | pem
                   1224: The input format.
1.1       jsing    1225: .It Fl noout
1.46      jmc      1226: Do not output the encoded version of the parameters.
1.44      jmc      1227: .It Fl out Ar file
                   1228: The output file to write to,
                   1229: or standard output if not specified.
                   1230: .It Fl outform Cm der | pem
                   1231: The output format.
                   1232: .It Fl text
1.64      jmc      1233: Print the DH parameters in plain text.
1.1       jsing    1234: .It Ar numbits
1.44      jmc      1235: Generate a parameter set of size
1.1       jsing    1236: .Ar numbits .
                   1237: It must be the last option.
1.16      sthen    1238: If not present, a value of 2048 is used.
1.1       jsing    1239: If this value is present, the input file is ignored and
                   1240: parameters are generated instead.
                   1241: .El
                   1242: .Sh DSA
                   1243: .nr nS 1
                   1244: .Nm "openssl dsa"
                   1245: .Oo
                   1246: .Fl aes128 | aes192 | aes256 |
                   1247: .Fl des | des3
                   1248: .Oc
                   1249: .Op Fl in Ar file
1.45      jmc      1250: .Op Fl inform Cm der | pem
1.1       jsing    1251: .Op Fl modulus
                   1252: .Op Fl noout
                   1253: .Op Fl out Ar file
1.45      jmc      1254: .Op Fl outform Cm der | pem
1.1       jsing    1255: .Op Fl passin Ar arg
                   1256: .Op Fl passout Ar arg
                   1257: .Op Fl pubin
                   1258: .Op Fl pubout
                   1259: .Op Fl text
                   1260: .nr nS 0
                   1261: .Pp
                   1262: The
                   1263: .Nm dsa
                   1264: command processes DSA keys.
                   1265: They can be converted between various forms and their components printed out.
                   1266: .Pp
                   1267: .Sy Note :
                   1268: This command uses the traditional
                   1269: .Nm SSLeay
                   1270: compatible format for private key encryption:
                   1271: newer applications should use the more secure PKCS#8 format using the
                   1272: .Nm pkcs8
                   1273: command.
                   1274: .Pp
                   1275: The options are as follows:
                   1276: .Bl -tag -width Ds
                   1277: .It Xo
                   1278: .Fl aes128 | aes192 | aes256 |
                   1279: .Fl des | des3
                   1280: .Xc
1.45      jmc      1281: Encrypt the private key with the AES, DES, or the triple DES
1.1       jsing    1282: ciphers, respectively, before outputting it.
                   1283: A pass phrase is prompted for.
1.45      jmc      1284: If none of these options are specified, the key is written in plain text.
1.1       jsing    1285: This means that using the
                   1286: .Nm dsa
1.45      jmc      1287: utility to read an encrypted key with no encryption option can be used to
1.1       jsing    1288: remove the pass phrase from a key,
1.45      jmc      1289: or by setting the encryption options it can be used to add or change
1.1       jsing    1290: the pass phrase.
                   1291: These options can only be used with PEM format output files.
                   1292: .It Fl in Ar file
1.45      jmc      1293: The input file to read from,
                   1294: or standard input if not specified.
1.1       jsing    1295: If the key is encrypted, a pass phrase will be prompted for.
1.45      jmc      1296: .It Fl inform Cm der | pem
                   1297: The input format.
1.1       jsing    1298: .It Fl modulus
1.45      jmc      1299: Print the value of the public key component of the key.
1.1       jsing    1300: .It Fl noout
1.46      jmc      1301: Do not output the encoded version of the key.
1.1       jsing    1302: .It Fl out Ar file
1.45      jmc      1303: The output file to write to,
                   1304: or standard output if not specified.
1.1       jsing    1305: If any encryption options are set then a pass phrase will be
                   1306: prompted for.
1.45      jmc      1307: .It Fl outform Cm der | pem
                   1308: The output format.
1.1       jsing    1309: .It Fl passin Ar arg
                   1310: The key password source.
                   1311: .It Fl passout Ar arg
                   1312: The output file password source.
                   1313: .It Fl pubin
1.60      jmc      1314: Read in a public key, not a private key.
1.1       jsing    1315: .It Fl pubout
1.60      jmc      1316: Output a public key, not a private key.
                   1317: Automatically set if the input is a public key.
1.1       jsing    1318: .It Fl text
1.64      jmc      1319: Print the public/private key in plain text.
1.1       jsing    1320: .El
                   1321: .Sh DSAPARAM
                   1322: .nr nS 1
                   1323: .Nm "openssl dsaparam"
                   1324: .Op Fl C
                   1325: .Op Fl genkey
                   1326: .Op Fl in Ar file
1.46      jmc      1327: .Op Fl inform Cm der | pem
1.1       jsing    1328: .Op Fl noout
                   1329: .Op Fl out Ar file
1.46      jmc      1330: .Op Fl outform Cm der | pem
1.1       jsing    1331: .Op Fl text
                   1332: .Op Ar numbits
                   1333: .nr nS 0
                   1334: .Pp
                   1335: The
                   1336: .Nm dsaparam
                   1337: command is used to manipulate or generate DSA parameter files.
                   1338: .Pp
                   1339: The options are as follows:
                   1340: .Bl -tag -width Ds
                   1341: .It Fl C
1.46      jmc      1342: Convert the parameters into C code.
1.1       jsing    1343: The parameters can then be loaded by calling the
1.46      jmc      1344: .No get_dsa Ns Ar XXX
1.1       jsing    1345: function.
                   1346: .It Fl genkey
1.46      jmc      1347: Generate a DSA key either using the specified or generated
1.1       jsing    1348: parameters.
                   1349: .It Fl in Ar file
1.46      jmc      1350: The input file to read from,
                   1351: or standard input if not specified.
1.1       jsing    1352: If the
                   1353: .Ar numbits
1.46      jmc      1354: parameter is included, then this option is ignored.
                   1355: .It Fl inform Cm der | pem
                   1356: The input format.
1.1       jsing    1357: .It Fl noout
1.46      jmc      1358: Do not output the encoded version of the parameters.
                   1359: .It Fl out Ar file
                   1360: The output file to write to,
                   1361: or standard output if not specified.
                   1362: .It Fl outform Cm der | pem
                   1363: The output format.
                   1364: .It Fl text
1.64      jmc      1365: Print the DSA parameters in plain text.
1.1       jsing    1366: .It Ar numbits
1.46      jmc      1367: Generate a parameter set of size
1.1       jsing    1368: .Ar numbits .
1.46      jmc      1369: If this option is included, the input file is ignored.
1.1       jsing    1370: .El
                   1371: .Sh EC
                   1372: .nr nS 1
                   1373: .Nm "openssl ec"
                   1374: .Op Fl conv_form Ar arg
                   1375: .Op Fl des
                   1376: .Op Fl des3
                   1377: .Op Fl in Ar file
1.47      jmc      1378: .Op Fl inform Cm der | pem
1.1       jsing    1379: .Op Fl noout
                   1380: .Op Fl out Ar file
1.47      jmc      1381: .Op Fl outform Cm der | pem
1.1       jsing    1382: .Op Fl param_enc Ar arg
                   1383: .Op Fl param_out
                   1384: .Op Fl passin Ar arg
                   1385: .Op Fl passout Ar arg
                   1386: .Op Fl pubin
                   1387: .Op Fl pubout
                   1388: .Op Fl text
                   1389: .nr nS 0
                   1390: .Pp
                   1391: The
                   1392: .Nm ec
                   1393: command processes EC keys.
                   1394: They can be converted between various
                   1395: forms and their components printed out.
1.47      jmc      1396: .Nm openssl
1.1       jsing    1397: uses the private key format specified in
                   1398: .Dq SEC 1: Elliptic Curve Cryptography
                   1399: .Pq Lk http://www.secg.org/ .
                   1400: To convert an
                   1401: EC private key into the PKCS#8 private key format use the
                   1402: .Nm pkcs8
                   1403: command.
                   1404: .Pp
                   1405: The options are as follows:
                   1406: .Bl -tag -width Ds
                   1407: .It Fl conv_form Ar arg
1.47      jmc      1408: Specify how the points on the elliptic curve are converted
1.1       jsing    1409: into octet strings.
                   1410: Possible values are:
                   1411: .Cm compressed
1.47      jmc      1412: (the default),
1.1       jsing    1413: .Cm uncompressed ,
                   1414: and
                   1415: .Cm hybrid .
                   1416: For more information regarding
1.47      jmc      1417: the point conversion forms see the X9.62 standard.
1.1       jsing    1418: Note:
                   1419: Due to patent issues the
                   1420: .Cm compressed
                   1421: option is disabled by default for binary curves
                   1422: and can be enabled by defining the preprocessor macro
1.47      jmc      1423: .Dv OPENSSL_EC_BIN_PT_COMP
1.1       jsing    1424: at compile time.
                   1425: .It Fl des | des3
1.47      jmc      1426: Encrypt the private key with DES, triple DES, or
1.1       jsing    1427: any other cipher supported by
1.47      jmc      1428: .Nm openssl .
1.1       jsing    1429: A pass phrase is prompted for.
                   1430: If none of these options is specified the key is written in plain text.
                   1431: This means that using the
                   1432: .Nm ec
                   1433: utility to read in an encrypted key with no
                   1434: encryption option can be used to remove the pass phrase from a key,
                   1435: or by setting the encryption options
                   1436: it can be use to add or change the pass phrase.
                   1437: These options can only be used with PEM format output files.
                   1438: .It Fl in Ar file
1.47      jmc      1439: The input file to read a key from,
                   1440: or standard input if not specified.
1.1       jsing    1441: If the key is encrypted a pass phrase will be prompted for.
1.47      jmc      1442: .It Fl inform Cm der | pem
                   1443: The input format.
1.1       jsing    1444: .It Fl noout
1.47      jmc      1445: Do not output the encoded version of the key.
1.1       jsing    1446: .It Fl out Ar file
1.47      jmc      1447: The output filename to write to,
                   1448: or standard output if not specified.
1.1       jsing    1449: If any encryption options are set then a pass phrase will be prompted for.
1.47      jmc      1450: .It Fl outform Cm der | pem
                   1451: The output format.
1.1       jsing    1452: .It Fl param_enc Ar arg
1.47      jmc      1453: Specify how the elliptic curve parameters are encoded.
1.1       jsing    1454: Possible value are:
                   1455: .Cm named_curve ,
                   1456: i.e. the EC parameters are specified by an OID; or
                   1457: .Cm explicit ,
                   1458: where the EC parameters are explicitly given
                   1459: (see RFC 3279 for the definition of the EC parameter structures).
                   1460: The default value is
                   1461: .Cm named_curve .
                   1462: Note: the
                   1463: .Cm implicitlyCA
                   1464: alternative,
                   1465: as specified in RFC 3279,
1.47      jmc      1466: is currently not implemented.
1.1       jsing    1467: .It Fl passin Ar arg
                   1468: The key password source.
                   1469: .It Fl passout Ar arg
                   1470: The output file password source.
                   1471: .It Fl pubin
1.60      jmc      1472: Read in a public key, not a private key.
1.1       jsing    1473: .It Fl pubout
1.60      jmc      1474: Output a public key, not a private key.
                   1475: Automatically set if the input is a public key.
1.1       jsing    1476: .It Fl text
1.64      jmc      1477: Print the public/private key in plain text.
1.1       jsing    1478: .El
                   1479: .Sh ECPARAM
                   1480: .nr nS 1
                   1481: .Nm "openssl ecparam"
                   1482: .Op Fl C
                   1483: .Op Fl check
                   1484: .Op Fl conv_form Ar arg
                   1485: .Op Fl genkey
                   1486: .Op Fl in Ar file
1.48      jmc      1487: .Op Fl inform Cm der | pem
1.1       jsing    1488: .Op Fl list_curves
                   1489: .Op Fl name Ar arg
                   1490: .Op Fl no_seed
                   1491: .Op Fl noout
                   1492: .Op Fl out Ar file
1.48      jmc      1493: .Op Fl outform Cm der | pem
1.1       jsing    1494: .Op Fl param_enc Ar arg
                   1495: .Op Fl text
                   1496: .nr nS 0
                   1497: .Pp
1.48      jmc      1498: The
                   1499: .Nm ecparam
                   1500: command is used to manipulate or generate EC parameter files.
                   1501: .Nm openssl
                   1502: is not able to generate new groups so
                   1503: .Nm ecparam
                   1504: can only create EC parameters from known (named) curves.
                   1505: .Pp
1.1       jsing    1506: The options are as follows:
                   1507: .Bl -tag -width Ds
                   1508: .It Fl C
                   1509: Convert the EC parameters into C code.
                   1510: The parameters can then be loaded by calling the
1.48      jmc      1511: .No get_ec_group_ Ns Ar XXX
1.1       jsing    1512: function.
                   1513: .It Fl check
                   1514: Validate the elliptic curve parameters.
                   1515: .It Fl conv_form Ar arg
                   1516: Specify how the points on the elliptic curve are converted
                   1517: into octet strings.
                   1518: Possible values are:
                   1519: .Cm compressed
1.48      jmc      1520: (the default),
1.1       jsing    1521: .Cm uncompressed ,
                   1522: and
                   1523: .Cm hybrid .
                   1524: For more information regarding
1.48      jmc      1525: the point conversion forms see the X9.62 standard.
1.1       jsing    1526: Note:
                   1527: Due to patent issues the
                   1528: .Cm compressed
                   1529: option is disabled by default for binary curves
                   1530: and can be enabled by defining the preprocessor macro
1.48      jmc      1531: .Dv OPENSSL_EC_BIN_PT_COMP
1.1       jsing    1532: at compile time.
                   1533: .It Fl genkey
                   1534: Generate an EC private key using the specified parameters.
                   1535: .It Fl in Ar file
1.48      jmc      1536: The input file to read from,
                   1537: or standard input if not specified.
                   1538: .It Fl inform Cm der | pem
                   1539: The input format.
1.1       jsing    1540: .It Fl list_curves
1.48      jmc      1541: Print a list of all
1.1       jsing    1542: currently implemented EC parameter names and exit.
                   1543: .It Fl name Ar arg
1.48      jmc      1544: Use the EC parameters with the specified "short" name.
1.1       jsing    1545: .It Fl no_seed
1.48      jmc      1546: Do not include the seed for the parameter generation
                   1547: in the ECParameters structure (see RFC 3279).
1.1       jsing    1548: .It Fl noout
1.48      jmc      1549: Do not output the encoded version of the parameters.
1.1       jsing    1550: .It Fl out Ar file
1.48      jmc      1551: The output file to write to,
                   1552: or standard output if not specified.
                   1553: .It Fl outform Cm der | pem
                   1554: The output format.
1.1       jsing    1555: .It Fl param_enc Ar arg
1.48      jmc      1556: Specify how the elliptic curve parameters are encoded.
1.1       jsing    1557: Possible value are:
                   1558: .Cm named_curve ,
                   1559: i.e. the EC parameters are specified by an OID, or
                   1560: .Cm explicit ,
                   1561: where the EC parameters are explicitly given
                   1562: (see RFC 3279 for the definition of the EC parameter structures).
                   1563: The default value is
                   1564: .Cm named_curve .
                   1565: Note: the
                   1566: .Cm implicitlyCA
                   1567: alternative, as specified in RFC 3279,
1.48      jmc      1568: is currently not implemented.
1.1       jsing    1569: .It Fl text
1.64      jmc      1570: Print the EC parameters in plain text.
1.1       jsing    1571: .El
                   1572: .Sh ENC
                   1573: .nr nS 1
                   1574: .Nm "openssl enc"
                   1575: .Fl ciphername
                   1576: .Op Fl AadePp
                   1577: .Op Fl base64
                   1578: .Op Fl bufsize Ar number
                   1579: .Op Fl debug
                   1580: .Op Fl in Ar file
                   1581: .Op Fl iv Ar IV
                   1582: .Op Fl K Ar key
                   1583: .Op Fl k Ar password
                   1584: .Op Fl kfile Ar file
                   1585: .Op Fl md Ar digest
                   1586: .Op Fl none
                   1587: .Op Fl nopad
                   1588: .Op Fl nosalt
                   1589: .Op Fl out Ar file
                   1590: .Op Fl pass Ar arg
                   1591: .Op Fl S Ar salt
                   1592: .Op Fl salt
                   1593: .nr nS 0
                   1594: .Pp
                   1595: The symmetric cipher commands allow data to be encrypted or decrypted
                   1596: using various block and stream ciphers using keys based on passwords
                   1597: or explicitly provided.
                   1598: Base64 encoding or decoding can also be performed either by itself
                   1599: or in addition to the encryption or decryption.
1.49      jmc      1600: The program can be called either as
                   1601: .Nm openssl Ar ciphername
                   1602: or
                   1603: .Nm openssl enc - Ns Ar ciphername .
                   1604: .Pp
                   1605: Some of the ciphers do not have large keys and others have security
                   1606: implications if not used correctly.
                   1607: All the block ciphers normally use PKCS#5 padding,
                   1608: also known as standard block padding.
                   1609: If padding is disabled, the input data must be a multiple of the cipher
                   1610: block length.
1.1       jsing    1611: .Pp
                   1612: The options are as follows:
                   1613: .Bl -tag -width Ds
                   1614: .It Fl A
                   1615: If the
                   1616: .Fl a
                   1617: option is set, then base64 process the data on one line.
                   1618: .It Fl a , base64
                   1619: Base64 process the data.
                   1620: This means that if encryption is taking place, the data is base64-encoded
                   1621: after encryption.
1.49      jmc      1622: If decryption is set, the input data is base64-decoded before
1.1       jsing    1623: being decrypted.
                   1624: .It Fl bufsize Ar number
                   1625: Set the buffer size for I/O.
                   1626: .It Fl d
                   1627: Decrypt the input data.
                   1628: .It Fl debug
                   1629: Debug the BIOs used for I/O.
                   1630: .It Fl e
1.49      jmc      1631: Encrypt the input data.
                   1632: This is the default.
1.1       jsing    1633: .It Fl in Ar file
1.49      jmc      1634: The input file to read from,
1.57      jmc      1635: or standard input if not specified.
1.1       jsing    1636: .It Fl iv Ar IV
                   1637: The actual
                   1638: .Ar IV
                   1639: .Pq initialisation vector
                   1640: to use:
                   1641: this must be represented as a string comprised only of hex digits.
                   1642: When only the
                   1643: .Ar key
                   1644: is specified using the
                   1645: .Fl K
1.49      jmc      1646: option,
                   1647: the IV must explicitly be defined.
1.1       jsing    1648: When a password is being specified using one of the other options,
1.49      jmc      1649: the IV is generated from this password.
1.1       jsing    1650: .It Fl K Ar key
                   1651: The actual
                   1652: .Ar key
                   1653: to use:
                   1654: this must be represented as a string comprised only of hex digits.
1.49      jmc      1655: If only the key is specified,
                   1656: the IV must also be specified using the
1.1       jsing    1657: .Fl iv
                   1658: option.
                   1659: When both a
                   1660: .Ar key
                   1661: and a
                   1662: .Ar password
                   1663: are specified, the
                   1664: .Ar key
                   1665: given with the
                   1666: .Fl K
1.49      jmc      1667: option will be used and the IV generated from the password will be taken.
1.1       jsing    1668: It probably does not make much sense to specify both
                   1669: .Ar key
                   1670: and
                   1671: .Ar password .
                   1672: .It Fl k Ar password
                   1673: The
                   1674: .Ar password
                   1675: to derive the key from.
                   1676: Superseded by the
                   1677: .Fl pass
                   1678: option.
                   1679: .It Fl kfile Ar file
                   1680: Read the password to derive the key from the first line of
                   1681: .Ar file .
                   1682: Superseded by the
                   1683: .Fl pass
                   1684: option.
                   1685: .It Fl md Ar digest
                   1686: Use
                   1687: .Ar digest
                   1688: to create a key from a pass phrase.
                   1689: .Ar digest
                   1690: may be one of
1.49      jmc      1691: .Cm md5
1.1       jsing    1692: or
1.49      jmc      1693: .Cm sha1 .
1.1       jsing    1694: .It Fl none
                   1695: Use NULL cipher (no encryption or decryption of input).
                   1696: .It Fl nopad
                   1697: Disable standard block padding.
                   1698: .It Fl nosalt
1.49      jmc      1699: Don't use a salt in the key derivation routines.
1.1       jsing    1700: This option should
                   1701: .Em NEVER
1.49      jmc      1702: be used
                   1703: since it makes it possible to perform efficient dictionary
                   1704: attacks on the password and to attack stream cipher encrypted data.
1.1       jsing    1705: .It Fl out Ar file
1.51      jmc      1706: The output file to write to,
1.57      jmc      1707: or standard output if not specified.
1.1       jsing    1708: .It Fl P
1.49      jmc      1709: Print out the salt, key, and IV used, then immediately exit;
1.1       jsing    1710: don't do any encryption or decryption.
                   1711: .It Fl p
1.49      jmc      1712: Print out the salt, key, and IV used.
1.1       jsing    1713: .It Fl pass Ar arg
                   1714: The password source.
                   1715: .It Fl S Ar salt
                   1716: The actual
                   1717: .Ar salt
                   1718: to use:
                   1719: this must be represented as a string comprised only of hex digits.
                   1720: .It Fl salt
1.49      jmc      1721: Use a salt in the key derivation routines (the default).
                   1722: When the salt is being used
                   1723: the first eight bytes of the encrypted data are reserved for the salt:
                   1724: it is randomly generated when encrypting a file and read from the
                   1725: encrypted file when it is decrypted.
1.1       jsing    1726: .El
                   1727: .Sh ERRSTR
                   1728: .Nm openssl errstr
                   1729: .Op Fl stats
                   1730: .Ar errno ...
                   1731: .Pp
                   1732: The
                   1733: .Nm errstr
                   1734: command performs error number to error string conversion,
                   1735: generating a human-readable string representing the error code
                   1736: .Ar errno .
                   1737: The string is obtained through the
                   1738: .Xr ERR_error_string_n 3
                   1739: function and has the following format:
                   1740: .Pp
                   1741: .Dl error:[error code]:[library name]:[function name]:[reason string]
                   1742: .Pp
                   1743: .Bq error code
                   1744: is an 8-digit hexadecimal number.
                   1745: The remaining fields
                   1746: .Bq library name ,
                   1747: .Bq function name ,
                   1748: and
                   1749: .Bq reason string
                   1750: are all ASCII text.
                   1751: .Pp
                   1752: The options are as follows:
                   1753: .Bl -tag -width Ds
                   1754: .It Fl stats
                   1755: Print debugging statistics about various aspects of the hash table.
                   1756: .El
                   1757: .Sh GENDSA
                   1758: .nr nS 1
                   1759: .Nm "openssl gendsa"
                   1760: .Oo
                   1761: .Fl aes128 | aes192 | aes256 |
                   1762: .Fl des | des3
                   1763: .Oc
                   1764: .Op Fl out Ar file
                   1765: .Op Ar paramfile
                   1766: .nr nS 0
                   1767: .Pp
                   1768: The
                   1769: .Nm gendsa
                   1770: command generates a DSA private key from a DSA parameter file
1.51      jmc      1771: (typically generated by the
1.1       jsing    1772: .Nm openssl dsaparam
                   1773: command).
1.51      jmc      1774: DSA key generation is little more than random number generation so it is
                   1775: much quicker than,
                   1776: for example,
                   1777: RSA key generation.
1.1       jsing    1778: .Pp
                   1779: The options are as follows:
                   1780: .Bl -tag -width Ds
                   1781: .It Xo
                   1782: .Fl aes128 | aes192 | aes256 |
                   1783: .Fl des | des3
                   1784: .Xc
1.51      jmc      1785: Encrypt the private key with the AES, DES,
1.1       jsing    1786: or the triple DES ciphers, respectively, before outputting it.
                   1787: A pass phrase is prompted for.
                   1788: If none of these options are specified, no encryption is used.
                   1789: .It Fl out Ar file
1.51      jmc      1790: The output file to write to,
1.57      jmc      1791: or standard output if not specified.
1.1       jsing    1792: .It Ar paramfile
1.51      jmc      1793: Specify the DSA parameter file to use.
1.1       jsing    1794: The parameters in this file determine the size of the private key.
                   1795: .El
                   1796: .Sh GENPKEY
                   1797: .nr nS 1
                   1798: .Nm "openssl genpkey"
                   1799: .Op Fl algorithm Ar alg
                   1800: .Op Ar cipher
                   1801: .Op Fl genparam
                   1802: .Op Fl out Ar file
1.52      jmc      1803: .Op Fl outform Cm der | pem
1.1       jsing    1804: .Op Fl paramfile Ar file
                   1805: .Op Fl pass Ar arg
                   1806: .Op Fl pkeyopt Ar opt : Ns Ar value
                   1807: .Op Fl text
                   1808: .nr nS 0
                   1809: .Pp
                   1810: The
                   1811: .Nm genpkey
                   1812: command generates private keys.
                   1813: The use of this
                   1814: program is encouraged over the algorithm specific utilities
1.22      bcook    1815: because additional algorithm options can be used.
1.1       jsing    1816: .Pp
                   1817: The options are as follows:
                   1818: .Bl -tag -width Ds
                   1819: .It Fl algorithm Ar alg
                   1820: The public key algorithm to use,
                   1821: such as RSA, DSA, or DH.
1.52      jmc      1822: This option must precede any
1.1       jsing    1823: .Fl pkeyopt
                   1824: options.
                   1825: The options
                   1826: .Fl paramfile
                   1827: and
                   1828: .Fl algorithm
                   1829: are mutually exclusive.
                   1830: .It Ar cipher
                   1831: Encrypt the private key with the supplied cipher.
                   1832: Any algorithm name accepted by
1.52      jmc      1833: .Xr EVP_get_cipherbyname 3
                   1834: is acceptable.
1.1       jsing    1835: .It Fl genparam
                   1836: Generate a set of parameters instead of a private key.
1.52      jmc      1837: This option must precede any
1.1       jsing    1838: .Fl algorithm ,
                   1839: .Fl paramfile ,
                   1840: or
                   1841: .Fl pkeyopt
                   1842: options.
                   1843: .It Fl out Ar file
1.52      jmc      1844: The output file to write to,
1.57      jmc      1845: or standard output if not specified.
1.52      jmc      1846: .It Fl outform Cm der | pem
                   1847: The output format.
1.1       jsing    1848: .It Fl paramfile Ar file
1.52      jmc      1849: Some public key algorithms generate a private key based on a set of parameters,
                   1850: which can be supplied using this option.
1.1       jsing    1851: If this option is used the public key
                   1852: algorithm used is determined by the parameters.
1.52      jmc      1853: This option must precede any
1.1       jsing    1854: .Fl pkeyopt
                   1855: options.
                   1856: The options
                   1857: .Fl paramfile
                   1858: and
                   1859: .Fl algorithm
                   1860: are mutually exclusive.
                   1861: .It Fl pass Ar arg
                   1862: The output file password source.
                   1863: .It Fl pkeyopt Ar opt : Ns Ar value
                   1864: Set the public key algorithm option
                   1865: .Ar opt
                   1866: to
1.52      jmc      1867: .Ar value ,
                   1868: as follows:
1.1       jsing    1869: .Bl -tag -width Ds -offset indent
                   1870: .It rsa_keygen_bits : Ns Ar numbits
                   1871: (RSA)
                   1872: The number of bits in the generated key.
1.52      jmc      1873: The default is 2048.
1.1       jsing    1874: .It rsa_keygen_pubexp : Ns Ar value
                   1875: (RSA)
                   1876: The RSA public exponent value.
                   1877: This can be a large decimal or hexadecimal value if preceded by 0x.
1.52      jmc      1878: The default is 65537.
1.1       jsing    1879: .It dsa_paramgen_bits : Ns Ar numbits
                   1880: (DSA)
                   1881: The number of bits in the generated parameters.
1.52      jmc      1882: The default is 1024.
1.1       jsing    1883: .It dh_paramgen_prime_len : Ns Ar numbits
                   1884: (DH)
                   1885: The number of bits in the prime parameter
                   1886: .Ar p .
                   1887: .It dh_paramgen_generator : Ns Ar value
                   1888: (DH)
                   1889: The value to use for the generator
                   1890: .Ar g .
                   1891: .It ec_paramgen_curve : Ns Ar curve
                   1892: (EC)
                   1893: The EC curve to use.
                   1894: .El
1.52      jmc      1895: .It Fl text
1.64      jmc      1896: Print the private/public key in plain text.
1.52      jmc      1897: .El
1.1       jsing    1898: .Sh GENRSA
                   1899: .nr nS 1
                   1900: .Nm "openssl genrsa"
                   1901: .Op Fl 3 | f4
1.53      jmc      1902: .Op Fl aes128 | aes192 | aes256 | des | des3
1.1       jsing    1903: .Op Fl out Ar file
                   1904: .Op Fl passout Ar arg
                   1905: .Op Ar numbits
                   1906: .nr nS 0
                   1907: .Pp
                   1908: The
                   1909: .Nm genrsa
1.53      jmc      1910: command generates an RSA private key,
                   1911: which essentially involves the generation of two prime numbers.
                   1912: When generating the key,
                   1913: various symbols will be output to indicate the progress of the generation.
                   1914: A
                   1915: .Sq \&.
                   1916: represents each number which has passed an initial sieve test;
                   1917: .Sq +
                   1918: means a number has passed a single round of the Miller-Rabin primality test.
                   1919: A newline means that the number has passed all the prime tests
                   1920: (the actual number depends on the key size).
1.1       jsing    1921: .Pp
                   1922: The options are as follows:
                   1923: .Bl -tag -width Ds
                   1924: .It Fl 3 | f4
                   1925: The public exponent to use, either 3 or 65537.
                   1926: The default is 65537.
1.53      jmc      1927: .It Fl aes128 | aes192 | aes256 | des | des3
                   1928: Encrypt the private key with the AES, DES,
1.1       jsing    1929: or the triple DES ciphers, respectively, before outputting it.
                   1930: If none of these options are specified, no encryption is used.
                   1931: If encryption is used, a pass phrase is prompted for,
                   1932: if it is not supplied via the
                   1933: .Fl passout
                   1934: option.
                   1935: .It Fl out Ar file
1.53      jmc      1936: The output file to write to,
1.57      jmc      1937: or standard output if not specified.
1.1       jsing    1938: .It Fl passout Ar arg
                   1939: The output file password source.
                   1940: .It Ar numbits
                   1941: The size of the private key to generate in bits.
                   1942: This must be the last option specified.
                   1943: The default is 2048.
                   1944: .El
                   1945: .Sh NSEQ
                   1946: .Nm openssl nseq
                   1947: .Op Fl in Ar file
                   1948: .Op Fl out Ar file
                   1949: .Op Fl toseq
                   1950: .Pp
                   1951: The
                   1952: .Nm nseq
1.54      jmc      1953: command takes a file containing a Netscape certificate sequence
                   1954: (an alternative to the standard PKCS#7 format)
                   1955: and prints out the certificates contained in it,
                   1956: or takes a file of certificates
                   1957: and converts it into a Netscape certificate sequence.
                   1958: .Pp
                   1959: The PEM-encoded form uses the same headers and footers as a certificate:
                   1960: .Bd -unfilled -offset indent
                   1961: -----BEGIN CERTIFICATE-----
                   1962: -----END CERTIFICATE-----
                   1963: .Ed
1.1       jsing    1964: .Pp
                   1965: The options are as follows:
                   1966: .Bl -tag -width Ds
                   1967: .It Fl in Ar file
1.54      jmc      1968: The input file to read from,
                   1969: or standard input if not specified.
1.1       jsing    1970: .It Fl out Ar file
1.54      jmc      1971: The output file to write to,
                   1972: or standard output if not specified.
1.1       jsing    1973: .It Fl toseq
                   1974: Normally, a Netscape certificate sequence will be input and the output
                   1975: is the certificates contained in it.
                   1976: With the
                   1977: .Fl toseq
                   1978: option the situation is reversed:
                   1979: a Netscape certificate sequence is created from a file of certificates.
                   1980: .El
                   1981: .Sh OCSP
                   1982: .nr nS 1
                   1983: .Nm "openssl ocsp"
                   1984: .Op Fl CA Ar file
                   1985: .Op Fl CAfile Ar file
                   1986: .Op Fl CApath Ar directory
                   1987: .Op Fl cert Ar file
                   1988: .Op Fl dgst Ar alg
1.55      jmc      1989: .Op Fl host Ar hostname : Ns Ar port
1.1       jsing    1990: .Op Fl index Ar indexfile
                   1991: .Op Fl issuer Ar file
                   1992: .Op Fl ndays Ar days
                   1993: .Op Fl nmin Ar minutes
                   1994: .Op Fl no_cert_checks
                   1995: .Op Fl no_cert_verify
                   1996: .Op Fl no_certs
                   1997: .Op Fl no_chain
                   1998: .Op Fl no_intern
                   1999: .Op Fl no_nonce
                   2000: .Op Fl no_signature_verify
                   2001: .Op Fl nonce
                   2002: .Op Fl noverify
                   2003: .Op Fl nrequest Ar number
                   2004: .Op Fl out Ar file
                   2005: .Op Fl path Ar path
                   2006: .Op Fl port Ar portnum
                   2007: .Op Fl req_text
                   2008: .Op Fl reqin Ar file
                   2009: .Op Fl reqout Ar file
                   2010: .Op Fl resp_key_id
                   2011: .Op Fl resp_no_certs
                   2012: .Op Fl resp_text
                   2013: .Op Fl respin Ar file
                   2014: .Op Fl respout Ar file
                   2015: .Op Fl rkey Ar file
                   2016: .Op Fl rother Ar file
                   2017: .Op Fl rsigner Ar file
                   2018: .Op Fl serial Ar number
                   2019: .Op Fl sign_other Ar file
                   2020: .Op Fl signer Ar file
                   2021: .Op Fl signkey Ar file
                   2022: .Op Fl status_age Ar age
                   2023: .Op Fl text
                   2024: .Op Fl trust_other
                   2025: .Op Fl url Ar responder_url
                   2026: .Op Fl VAfile Ar file
                   2027: .Op Fl validity_period Ar nsec
                   2028: .Op Fl verify_other Ar file
                   2029: .nr nS 0
                   2030: .Pp
1.55      jmc      2031: The Online Certificate Status Protocol (OCSP)
                   2032: enables applications to determine the (revocation) state
                   2033: of an identified certificate (RFC 2560).
1.1       jsing    2034: .Pp
                   2035: The
                   2036: .Nm ocsp
                   2037: command performs many common OCSP tasks.
                   2038: It can be used to print out requests and responses,
                   2039: create requests and send queries to an OCSP responder,
                   2040: and behave like a mini OCSP server itself.
                   2041: .Pp
                   2042: The options are as follows:
                   2043: .Bl -tag -width Ds
                   2044: .It Fl CAfile Ar file , Fl CApath Ar directory
1.55      jmc      2045: A file or path containing trusted CA certificates,
                   2046: used to verify the signature on the OCSP response.
1.1       jsing    2047: .It Fl cert Ar file
                   2048: Add the certificate
                   2049: .Ar file
                   2050: to the request.
                   2051: The issuer certificate is taken from the previous
                   2052: .Fl issuer
                   2053: option, or an error occurs if no issuer certificate is specified.
                   2054: .It Fl dgst Ar alg
1.55      jmc      2055: Use the digest algorithm
                   2056: .Ar alg
                   2057: for certificate identification in the OCSP request.
1.1       jsing    2058: By default SHA-1 is used.
                   2059: .It Xo
                   2060: .Fl host Ar hostname : Ns Ar port ,
                   2061: .Fl path Ar path
                   2062: .Xc
1.55      jmc      2063: Send
                   2064: the OCSP request to
1.1       jsing    2065: .Ar hostname
1.55      jmc      2066: on
1.1       jsing    2067: .Ar port .
                   2068: .Fl path
                   2069: specifies the HTTP path name to use, or
1.55      jmc      2070: .Pa /
1.1       jsing    2071: by default.
                   2072: .It Fl issuer Ar file
1.55      jmc      2073: The current issuer certificate,
                   2074: in PEM format.
                   2075: Can be used multiple times
                   2076: and must come before any
1.1       jsing    2077: .Fl cert
                   2078: options.
                   2079: .It Fl no_cert_checks
                   2080: Don't perform any additional checks on the OCSP response signer's certificate.
                   2081: That is, do not make any checks to see if the signer's certificate is
                   2082: authorised to provide the necessary status information:
                   2083: as a result this option should only be used for testing purposes.
                   2084: .It Fl no_cert_verify
                   2085: Don't verify the OCSP response signer's certificate at all.
                   2086: Since this option allows the OCSP response to be signed by any certificate,
                   2087: it should only be used for testing purposes.
                   2088: .It Fl no_certs
1.55      jmc      2089: Don't include any certificates in the signed request.
1.1       jsing    2090: .It Fl no_chain
                   2091: Do not use certificates in the response as additional untrusted CA
                   2092: certificates.
                   2093: .It Fl no_intern
                   2094: Ignore certificates contained in the OCSP response
                   2095: when searching for the signer's certificate.
1.55      jmc      2096: The signer's certificate must be specified with either the
1.1       jsing    2097: .Fl verify_other
                   2098: or
                   2099: .Fl VAfile
                   2100: options.
                   2101: .It Fl no_signature_verify
                   2102: Don't check the signature on the OCSP response.
                   2103: Since this option tolerates invalid signatures on OCSP responses,
                   2104: it will normally only be used for testing purposes.
                   2105: .It Fl nonce , no_nonce
1.55      jmc      2106: Add an OCSP nonce extension to a request,
                   2107: or disable an OCSP nonce addition.
1.1       jsing    2108: Normally, if an OCSP request is input using the
                   2109: .Fl respin
1.55      jmc      2110: option no nonce is added:
1.1       jsing    2111: using the
                   2112: .Fl nonce
1.55      jmc      2113: option will force the addition of a nonce.
1.1       jsing    2114: If an OCSP request is being created (using the
                   2115: .Fl cert
                   2116: and
                   2117: .Fl serial
                   2118: options)
1.55      jmc      2119: a nonce is automatically added; specifying
1.1       jsing    2120: .Fl no_nonce
                   2121: overrides this.
                   2122: .It Fl noverify
1.55      jmc      2123: Don't attempt to verify the OCSP response signature or the nonce values.
                   2124: This is normally only be used for debugging
1.1       jsing    2125: since it disables all verification of the responder's certificate.
                   2126: .It Fl out Ar file
1.55      jmc      2127: Specify the output file to write to,
1.57      jmc      2128: or standard output if not specified.
1.1       jsing    2129: .It Fl req_text , resp_text , text
                   2130: Print out the text form of the OCSP request, response, or both, respectively.
                   2131: .It Fl reqin Ar file , Fl respin Ar file
                   2132: Read an OCSP request or response file from
                   2133: .Ar file .
                   2134: These options are ignored
                   2135: if an OCSP request or response creation is implied by other options
                   2136: (for example with the
                   2137: .Fl serial , cert ,
                   2138: and
                   2139: .Fl host
                   2140: options).
                   2141: .It Fl reqout Ar file , Fl respout Ar file
                   2142: Write out the DER-encoded certificate request or response to
                   2143: .Ar file .
                   2144: .It Fl serial Ar num
                   2145: Same as the
                   2146: .Fl cert
                   2147: option except the certificate with serial number
                   2148: .Ar num
                   2149: is added to the request.
                   2150: The serial number is interpreted as a decimal integer unless preceded by
                   2151: .Sq 0x .
1.55      jmc      2152: Negative integers can also be specified
                   2153: by preceding the value with a minus sign.
1.1       jsing    2154: .It Fl sign_other Ar file
                   2155: Additional certificates to include in the signed request.
                   2156: .It Fl signer Ar file , Fl signkey Ar file
                   2157: Sign the OCSP request using the certificate specified in the
                   2158: .Fl signer
                   2159: option and the private key specified by the
                   2160: .Fl signkey
                   2161: option.
                   2162: If the
                   2163: .Fl signkey
                   2164: option is not present, then the private key is read from the same file
                   2165: as the certificate.
                   2166: If neither option is specified, the OCSP request is not signed.
                   2167: .It Fl trust_other
                   2168: The certificates specified by the
                   2169: .Fl verify_other
                   2170: option should be explicitly trusted and no additional checks will be
                   2171: performed on them.
                   2172: This is useful when the complete responder certificate chain is not available
                   2173: or trusting a root CA is not appropriate.
                   2174: .It Fl url Ar responder_url
                   2175: Specify the responder URL.
                   2176: Both HTTP and HTTPS
                   2177: .Pq SSL/TLS
                   2178: URLs can be specified.
                   2179: .It Fl VAfile Ar file
1.55      jmc      2180: A file containing explicitly trusted responder certificates.
1.1       jsing    2181: Equivalent to the
                   2182: .Fl verify_other
                   2183: and
                   2184: .Fl trust_other
                   2185: options.
                   2186: .It Fl validity_period Ar nsec , Fl status_age Ar age
1.55      jmc      2187: The range of times, in seconds, which will be tolerated in an OCSP response.
                   2188: Each certificate status response includes a notBefore time
                   2189: and an optional notAfter time.
1.1       jsing    2190: The current time should fall between these two values,
                   2191: but the interval between the two times may be only a few seconds.
                   2192: In practice the OCSP responder and clients' clocks may not be precisely
                   2193: synchronised and so such a check may fail.
                   2194: To avoid this the
                   2195: .Fl validity_period
                   2196: option can be used to specify an acceptable error range in seconds,
1.55      jmc      2197: the default value being 5 minutes.
1.1       jsing    2198: .Pp
1.55      jmc      2199: If the notAfter time is omitted from a response,
                   2200: it means that new status information is immediately available.
                   2201: In this case the age of the notBefore field is checked
                   2202: to see it is not older than
1.1       jsing    2203: .Ar age
                   2204: seconds old.
                   2205: By default, this additional check is not performed.
                   2206: .It Fl verify_other Ar file
1.55      jmc      2207: A file containing additional certificates to search
                   2208: when attempting to locate the OCSP response signing certificate.
                   2209: Some responders omit the actual signer's certificate from the response,
                   2210: so this can be used to supply the necessary certificate.
1.1       jsing    2211: .El
1.55      jmc      2212: .Pp
                   2213: The options for the OCSP server are as follows:
1.1       jsing    2214: .Bl -tag -width "XXXX"
                   2215: .It Fl CA Ar file
                   2216: CA certificate corresponding to the revocation information in
                   2217: .Ar indexfile .
                   2218: .It Fl index Ar indexfile
                   2219: .Ar indexfile
1.55      jmc      2220: is a text index file in ca format
                   2221: containing certificate revocation information.
1.1       jsing    2222: .Pp
1.55      jmc      2223: If this option is specified,
1.1       jsing    2224: .Nm ocsp
1.55      jmc      2225: is in responder mode, otherwise it is in client mode.
                   2226: The requests the responder processes can be either specified on
1.1       jsing    2227: the command line (using the
                   2228: .Fl issuer
                   2229: and
                   2230: .Fl serial
                   2231: options), supplied in a file (using the
                   2232: .Fl respin
1.55      jmc      2233: option), or via external OCSP clients (if
1.1       jsing    2234: .Ar port
                   2235: or
                   2236: .Ar url
                   2237: is specified).
                   2238: .Pp
1.55      jmc      2239: If this option is present, then the
1.1       jsing    2240: .Fl CA
                   2241: and
                   2242: .Fl rsigner
                   2243: options must also be present.
                   2244: .It Fl nmin Ar minutes , Fl ndays Ar days
                   2245: Number of
                   2246: .Ar minutes
                   2247: or
                   2248: .Ar days
1.55      jmc      2249: when fresh revocation information is available:
                   2250: used in the nextUpdate field.
                   2251: If neither option is present,
                   2252: the nextUpdate field is omitted,
                   2253: meaning fresh revocation information is immediately available.
1.1       jsing    2254: .It Fl nrequest Ar number
1.55      jmc      2255: Exit after receiving
1.1       jsing    2256: .Ar number
1.55      jmc      2257: requests (the default is unlimited).
1.1       jsing    2258: .It Fl port Ar portnum
                   2259: Port to listen for OCSP requests on.
1.55      jmc      2260: May also be specified using the
1.1       jsing    2261: .Fl url
                   2262: option.
                   2263: .It Fl resp_key_id
                   2264: Identify the signer certificate using the key ID;
1.55      jmc      2265: the default is to use the subject name.
1.1       jsing    2266: .It Fl resp_no_certs
                   2267: Don't include any certificates in the OCSP response.
                   2268: .It Fl rkey Ar file
                   2269: The private key to sign OCSP responses with;
                   2270: if not present, the file specified in the
                   2271: .Fl rsigner
                   2272: option is used.
                   2273: .It Fl rother Ar file
                   2274: Additional certificates to include in the OCSP response.
                   2275: .It Fl rsigner Ar file
                   2276: The certificate to sign OCSP responses with.
                   2277: .El
                   2278: .Pp
                   2279: Initially the OCSP responder certificate is located and the signature on
                   2280: the OCSP request checked using the responder certificate's public key.
                   2281: Then a normal certificate verify is performed on the OCSP responder certificate
                   2282: building up a certificate chain in the process.
                   2283: The locations of the trusted certificates used to build the chain can be
                   2284: specified by the
                   2285: .Fl CAfile
                   2286: and
                   2287: .Fl CApath
                   2288: options or they will be looked for in the standard
1.55      jmc      2289: .Nm openssl
                   2290: certificates directory.
1.1       jsing    2291: .Pp
1.55      jmc      2292: If the initial verify fails, the OCSP verify process halts with an error.
1.1       jsing    2293: Otherwise the issuing CA certificate in the request is compared to the OCSP
                   2294: responder certificate: if there is a match then the OCSP verify succeeds.
                   2295: .Pp
                   2296: Otherwise the OCSP responder certificate's CA is checked against the issuing
                   2297: CA certificate in the request.
                   2298: If there is a match and the OCSPSigning extended key usage is present
                   2299: in the OCSP responder certificate, then the OCSP verify succeeds.
                   2300: .Pp
                   2301: Otherwise the root CA of the OCSP responder's CA is checked to see if it
                   2302: is trusted for OCSP signing.
                   2303: If it is, the OCSP verify succeeds.
                   2304: .Pp
                   2305: If none of these checks is successful, the OCSP verify fails.
                   2306: What this effectively means is that if the OCSP responder certificate is
                   2307: authorised directly by the CA it is issuing revocation information about
1.55      jmc      2308: (and it is correctly configured),
1.1       jsing    2309: then verification will succeed.
                   2310: .Pp
1.55      jmc      2311: If the OCSP responder is a global responder,
                   2312: which can give details about multiple CAs
                   2313: and has its own separate certificate chain,
                   2314: then its root CA can be trusted for OCSP signing.
1.1       jsing    2315: For example:
                   2316: .Bd -literal -offset indent
                   2317: $ openssl x509 -in ocspCA.pem -addtrust OCSPSigning \e
                   2318:        -out trustedCA.pem
                   2319: .Ed
                   2320: .Pp
                   2321: Alternatively, the responder certificate itself can be explicitly trusted
                   2322: with the
                   2323: .Fl VAfile
                   2324: option.
                   2325: .Sh PASSWD
                   2326: .nr nS 1
                   2327: .Nm "openssl passwd"
                   2328: .Op Fl 1 | apr1 | crypt
                   2329: .Op Fl in Ar file
                   2330: .Op Fl noverify
                   2331: .Op Fl quiet
                   2332: .Op Fl reverse
                   2333: .Op Fl salt Ar string
                   2334: .Op Fl stdin
                   2335: .Op Fl table
                   2336: .Op Ar password
                   2337: .nr nS 0
                   2338: .Pp
                   2339: The
                   2340: .Nm passwd
1.56      jmc      2341: command computes the hash of a password.
1.1       jsing    2342: .Pp
                   2343: The options are as follows:
                   2344: .Bl -tag -width Ds
                   2345: .It Fl 1
                   2346: Use the MD5 based
                   2347: .Bx
                   2348: password algorithm
1.56      jmc      2349: .Qq 1 .
1.1       jsing    2350: .It Fl apr1
                   2351: Use the
1.56      jmc      2352: .Qq apr1
1.1       jsing    2353: algorithm
1.56      jmc      2354: .Po
                   2355: Apache variant of the
1.1       jsing    2356: .Bx
1.56      jmc      2357: algorithm
                   2358: .Pc .
1.1       jsing    2359: .It Fl crypt
                   2360: Use the
1.56      jmc      2361: .Qq crypt
                   2362: algorithm (the default).
1.1       jsing    2363: .It Fl in Ar file
                   2364: Read passwords from
                   2365: .Ar file .
                   2366: .It Fl noverify
                   2367: Don't verify when reading a password from the terminal.
                   2368: .It Fl quiet
                   2369: Don't output warnings when passwords given on the command line are truncated.
                   2370: .It Fl reverse
                   2371: Switch table columns.
                   2372: This only makes sense in conjunction with the
                   2373: .Fl table
                   2374: option.
                   2375: .It Fl salt Ar string
1.56      jmc      2376: Use the salt specified by
                   2377: .Ar string .
1.1       jsing    2378: When reading a password from the terminal, this implies
                   2379: .Fl noverify .
                   2380: .It Fl stdin
1.56      jmc      2381: Read passwords from standard input.
1.1       jsing    2382: .It Fl table
                   2383: In the output list, prepend the cleartext password and a TAB character
                   2384: to each password hash.
                   2385: .El
                   2386: .Sh PKCS7
                   2387: .nr nS 1
                   2388: .Nm "openssl pkcs7"
                   2389: .Op Fl in Ar file
1.57      jmc      2390: .Op Fl inform Cm der | pem
1.1       jsing    2391: .Op Fl noout
                   2392: .Op Fl out Ar file
1.57      jmc      2393: .Op Fl outform Cm der | pem
1.1       jsing    2394: .Op Fl print_certs
                   2395: .Op Fl text
                   2396: .nr nS 0
                   2397: .Pp
                   2398: The
                   2399: .Nm pkcs7
                   2400: command processes PKCS#7 files in DER or PEM format.
1.57      jmc      2401: The PKCS#7 routines only understand PKCS#7 v 1.5 as specified in RFC 2315.
                   2402: .Pp
1.1       jsing    2403: The options are as follows:
                   2404: .Bl -tag -width Ds
                   2405: .It Fl in Ar file
1.57      jmc      2406: The input file to read from,
                   2407: or standard input if not specified.
                   2408: .It Fl inform Cm der | pem
                   2409: The input format.
1.1       jsing    2410: .It Fl noout
                   2411: Don't output the encoded version of the PKCS#7 structure
                   2412: (or certificates if
                   2413: .Fl print_certs
                   2414: is set).
                   2415: .It Fl out Ar file
1.57      jmc      2416: The output to write to,
                   2417: or standard output if not specified.
                   2418: .It Fl outform Cm der | pem
                   2419: The output format.
1.1       jsing    2420: .It Fl print_certs
1.57      jmc      2421: Print any certificates or CRLs contained in the file,
                   2422: preceded by their subject and issuer names in a one-line format.
1.1       jsing    2423: .It Fl text
1.57      jmc      2424: Print certificate details in full rather than just subject and issuer names.
1.1       jsing    2425: .El
                   2426: .Sh PKCS8
                   2427: .nr nS 1
                   2428: .Nm "openssl pkcs8"
                   2429: .Op Fl embed
                   2430: .Op Fl in Ar file
1.58      jmc      2431: .Op Fl inform Cm der | pem
1.1       jsing    2432: .Op Fl nocrypt
                   2433: .Op Fl noiter
                   2434: .Op Fl nooct
                   2435: .Op Fl nsdb
                   2436: .Op Fl out Ar file
1.58      jmc      2437: .Op Fl outform Cm der | pem
1.1       jsing    2438: .Op Fl passin Ar arg
                   2439: .Op Fl passout Ar arg
                   2440: .Op Fl topk8
                   2441: .Op Fl v1 Ar alg
                   2442: .Op Fl v2 Ar alg
                   2443: .nr nS 0
                   2444: .Pp
                   2445: The
                   2446: .Nm pkcs8
1.58      jmc      2447: command processes private keys
                   2448: (both encrypted and unencrypted)
                   2449: in PKCS#8 format
                   2450: with a variety of PKCS#5 (v1.5 and v2.0) and PKCS#12 algorithms.
                   2451: The default encryption is only 56 bits;
                   2452: keys encrypted using PKCS#5 v2.0 algorithms and high iteration counts
                   2453: are more secure.
                   2454: .Pp
                   2455: The encrypted form of a PEM-encoded PKCS#8 file uses the following
                   2456: headers and footers:
                   2457: .Bd -unfilled -offset indent
                   2458: -----BEGIN ENCRYPTED PRIVATE KEY-----
                   2459: -----END ENCRYPTED PRIVATE KEY-----
                   2460: .Ed
                   2461: .Pp
                   2462: The unencrypted form uses:
                   2463: .Bd -unfilled -offset indent
                   2464: -----BEGIN PRIVATE KEY-----
                   2465: -----END PRIVATE KEY-----
                   2466: .Ed
1.1       jsing    2467: .Pp
                   2468: The options are as follows:
                   2469: .Bl -tag -width Ds
                   2470: .It Fl embed
1.58      jmc      2471: Generate DSA keys in a broken format.
                   2472: The DSA parameters are embedded inside the PrivateKey structure.
1.1       jsing    2473: In this form the OCTET STRING contains an ASN1 SEQUENCE consisting of
                   2474: two structures:
                   2475: a SEQUENCE containing the parameters and an ASN1 INTEGER containing
                   2476: the private key.
                   2477: .It Fl in Ar file
1.58      jmc      2478: The input file to read from,
                   2479: or standard input if not specified.
1.1       jsing    2480: If the key is encrypted, a pass phrase will be prompted for.
1.58      jmc      2481: .It Fl inform Cm der | pem
                   2482: The input format.
1.1       jsing    2483: .It Fl nocrypt
1.58      jmc      2484: Generate an unencrypted PrivateKeyInfo structure.
                   2485: This option does not encrypt private keys at all
                   2486: and should only be used when absolutely necessary.
1.1       jsing    2487: .It Fl noiter
                   2488: Use an iteration count of 1.
                   2489: See the
                   2490: .Sx PKCS12
                   2491: section below for a detailed explanation of this option.
                   2492: .It Fl nooct
1.58      jmc      2493: Generate RSA private keys in a broken format that some software uses.
1.1       jsing    2494: Specifically the private key should be enclosed in an OCTET STRING,
                   2495: but some software just includes the structure itself without the
                   2496: surrounding OCTET STRING.
                   2497: .It Fl nsdb
1.58      jmc      2498: Generate DSA keys in a broken format compatible with Netscape
1.1       jsing    2499: private key databases.
1.58      jmc      2500: The PrivateKey contains a SEQUENCE
                   2501: consisting of the public and private keys, respectively.
1.1       jsing    2502: .It Fl out Ar file
1.58      jmc      2503: The output file to write to,
                   2504: or standard output if none is specified.
1.1       jsing    2505: If any encryption options are set, a pass phrase will be prompted for.
1.58      jmc      2506: .It Fl outform Cm der | pem
                   2507: The output format.
1.1       jsing    2508: .It Fl passin Ar arg
                   2509: The key password source.
                   2510: .It Fl passout Ar arg
                   2511: The output file password source.
                   2512: .It Fl topk8
1.58      jmc      2513: Read a traditional format private key and write a PKCS#8 format key.
1.1       jsing    2514: .It Fl v1 Ar alg
1.58      jmc      2515: Specify a PKCS#5 v1.5 or PKCS#12 algorithm to use.
                   2516: .Pp
                   2517: .Bl -tag -width "XXXX" -compact
                   2518: .It PBE-MD5-DES
                   2519: 56-bit DES.
                   2520: .It PBE-SHA1-RC2-64 | PBE-MD5-RC2-64 | PBE-SHA1-DES
                   2521: 64-bit RC2 or 56-bit DES.
                   2522: .It PBE-SHA1-RC4-128 | PBE-SHA1-RC4-40 | PBE-SHA1-3DES
                   2523: .It PBE-SHA1-2DES | PBE-SHA1-RC2-128 | PBE-SHA1-RC2-40
                   2524: PKCS#12 password-based encryption algorithm,
                   2525: which allow strong encryption algorithms like triple DES or 128-bit RC2.
                   2526: .El
1.1       jsing    2527: .It Fl v2 Ar alg
1.58      jmc      2528: Use PKCS#5 v2.0 algorithms.
                   2529: Supports algorithms such as 168-bit triple DES or 128-bit RC2,
                   2530: however not many implementations support PKCS#5 v2.0 yet
                   2531: (if using private keys with
                   2532: .Nm openssl
                   2533: this doesn't matter).
1.1       jsing    2534: .Pp
                   2535: .Ar alg
1.58      jmc      2536: is the encryption algorithm to use;
                   2537: valid values include des, des3, and rc2.
                   2538: It is recommended that des3 is used.
1.1       jsing    2539: .El
                   2540: .Sh PKCS12
                   2541: .nr nS 1
                   2542: .Nm "openssl pkcs12"
1.59      jmc      2543: .Op Fl aes128 | aes192 | aes256 | des | des3
1.1       jsing    2544: .Op Fl cacerts
                   2545: .Op Fl CAfile Ar file
                   2546: .Op Fl caname Ar name
                   2547: .Op Fl CApath Ar directory
                   2548: .Op Fl certfile Ar file
                   2549: .Op Fl certpbe Ar alg
                   2550: .Op Fl chain
                   2551: .Op Fl clcerts
                   2552: .Op Fl CSP Ar name
                   2553: .Op Fl descert
                   2554: .Op Fl export
                   2555: .Op Fl in Ar file
                   2556: .Op Fl info
                   2557: .Op Fl inkey Ar file
                   2558: .Op Fl keyex
                   2559: .Op Fl keypbe Ar alg
                   2560: .Op Fl keysig
                   2561: .Op Fl macalg Ar alg
                   2562: .Op Fl maciter
                   2563: .Op Fl name Ar name
                   2564: .Op Fl nocerts
                   2565: .Op Fl nodes
                   2566: .Op Fl noiter
                   2567: .Op Fl nokeys
                   2568: .Op Fl nomac
                   2569: .Op Fl nomaciter
                   2570: .Op Fl nomacver
                   2571: .Op Fl noout
                   2572: .Op Fl out Ar file
                   2573: .Op Fl passin Ar arg
                   2574: .Op Fl passout Ar arg
                   2575: .Op Fl twopass
                   2576: .nr nS 0
                   2577: .Pp
                   2578: The
                   2579: .Nm pkcs12
                   2580: command allows PKCS#12 files
                   2581: .Pq sometimes referred to as PFX files
                   2582: to be created and parsed.
                   2583: By default, a PKCS#12 file is parsed;
                   2584: a PKCS#12 file can be created by using the
                   2585: .Fl export
1.59      jmc      2586: option.
                   2587: .Pp
                   2588: The options for parsing a PKCS12 file are as follows:
1.1       jsing    2589: .Bl -tag -width "XXXX"
1.59      jmc      2590: .It Fl aes128 | aes192 | aes256 | des | des3
                   2591: Encrypt private keys
                   2592: using AES, DES, or triple DES, respectively.
1.1       jsing    2593: The default is triple DES.
                   2594: .It Fl cacerts
                   2595: Only output CA certificates
                   2596: .Pq not client certificates .
                   2597: .It Fl clcerts
                   2598: Only output client certificates
                   2599: .Pq not CA certificates .
                   2600: .It Fl in Ar file
1.59      jmc      2601: The input file to read from,
                   2602: or standard input if not specified.
1.1       jsing    2603: .It Fl info
                   2604: Output additional information about the PKCS#12 file structure,
                   2605: algorithms used, and iteration counts.
                   2606: .It Fl nocerts
1.59      jmc      2607: Do not output certificates.
1.1       jsing    2608: .It Fl nodes
1.59      jmc      2609: Do not encrypt private keys.
1.1       jsing    2610: .It Fl nokeys
1.59      jmc      2611: Do not output private keys.
1.1       jsing    2612: .It Fl nomacver
1.59      jmc      2613: Do not attempt to verify the integrity MAC before reading the file.
1.1       jsing    2614: .It Fl noout
1.59      jmc      2615: Do not output the keys and certificates to the output file
1.1       jsing    2616: version of the PKCS#12 file.
                   2617: .It Fl out Ar file
1.59      jmc      2618: The output file to write to,
                   2619: or standard output if not specified.
1.1       jsing    2620: .It Fl passin Ar arg
                   2621: The key password source.
                   2622: .It Fl passout Ar arg
                   2623: The output file password source.
                   2624: .It Fl twopass
                   2625: Prompt for separate integrity and encryption passwords: most software
                   2626: always assumes these are the same so this option will render such
                   2627: PKCS#12 files unreadable.
                   2628: .El
1.59      jmc      2629: .Pp
                   2630: The options for PKCS12 file creation are as follows:
1.1       jsing    2631: .Bl -tag -width "XXXX"
                   2632: .It Fl CAfile Ar file
                   2633: CA storage as a file.
                   2634: .It Fl CApath Ar directory
                   2635: CA storage as a directory.
1.59      jmc      2636: The directory must be a standard certificate directory:
1.1       jsing    2637: that is, a hash of each subject name (using
1.59      jmc      2638: .Nm x509 Fl hash )
1.1       jsing    2639: should be linked to each certificate.
                   2640: .It Fl caname Ar name
1.59      jmc      2641: Specify the
1.1       jsing    2642: .Qq friendly name
                   2643: for other certificates.
1.59      jmc      2644: May be used multiple times to specify names for all certificates
1.1       jsing    2645: in the order they appear.
                   2646: .It Fl certfile Ar file
                   2647: A file to read additional certificates from.
                   2648: .It Fl certpbe Ar alg , Fl keypbe Ar alg
1.59      jmc      2649: Specify the algorithm used to encrypt the private key and
1.1       jsing    2650: certificates to be selected.
1.59      jmc      2651: Any PKCS#5 v1.5 or PKCS#12 PBE algorithm name can be used.
1.1       jsing    2652: If a cipher name
                   2653: (as output by the
                   2654: .Cm list-cipher-algorithms
                   2655: command) is specified then it
                   2656: is used with PKCS#5 v2.0.
                   2657: For interoperability reasons it is advisable to only use PKCS#12 algorithms.
                   2658: .It Fl chain
1.59      jmc      2659: Include the entire certificate chain of the user certificate.
1.1       jsing    2660: The standard CA store is used for this search.
                   2661: If the search fails, it is considered a fatal error.
                   2662: .It Fl CSP Ar name
                   2663: Write
                   2664: .Ar name
                   2665: as a Microsoft CSP name.
                   2666: .It Fl descert
                   2667: Encrypt the certificate using triple DES; this may render the PKCS#12
                   2668: file unreadable by some
                   2669: .Qq export grade
                   2670: software.
                   2671: By default, the private key is encrypted using triple DES and the
                   2672: certificate using 40-bit RC2.
                   2673: .It Fl export
1.59      jmc      2674: Create a PKCS#12 file (rather than parsing one).
1.1       jsing    2675: .It Fl in Ar file
1.59      jmc      2676: The input file to read from,
                   2677: or standard input if not specified,
                   2678: in PEM format.
1.1       jsing    2679: The order doesn't matter but one private key and its corresponding
                   2680: certificate should be present.
                   2681: If additional certificates are present, they will also be included
                   2682: in the PKCS#12 file.
                   2683: .It Fl inkey Ar file
1.59      jmc      2684: File to read a private key from.
1.1       jsing    2685: If not present, a private key must be present in the input file.
                   2686: .It Fl keyex | keysig
1.59      jmc      2687: Specify whether the private key is to be used for key exchange or just signing.
1.1       jsing    2688: Normally,
                   2689: .Qq export grade
                   2690: software will only allow 512-bit RSA keys to be
                   2691: used for encryption purposes, but arbitrary length keys for signing.
                   2692: The
                   2693: .Fl keysig
                   2694: option marks the key for signing only.
                   2695: Signing only keys can be used for S/MIME signing, authenticode
1.66      jmc      2696: (ActiveX control signing)
1.59      jmc      2697: and SSL client authentication.
1.1       jsing    2698: .It Fl macalg Ar alg
                   2699: Specify the MAC digest algorithm.
1.59      jmc      2700: The default is SHA1.
1.1       jsing    2701: .It Fl maciter
1.66      jmc      2702: Included for compatibility only:
1.59      jmc      2703: it used to be needed to use MAC iterations counts
                   2704: but they are now used by default.
1.1       jsing    2705: .It Fl name Ar name
1.59      jmc      2706: Specify the
1.1       jsing    2707: .Qq friendly name
                   2708: for the certificate and private key.
                   2709: This name is typically displayed in list boxes by software importing the file.
                   2710: .It Fl nomac
                   2711: Don't attempt to provide the MAC integrity.
                   2712: .It Fl nomaciter , noiter
1.59      jmc      2713: Affect the iteration counts on the MAC and key algorithms.
1.1       jsing    2714: Unless you wish to produce files compatible with MSIE 4.0, you should leave
                   2715: these options alone.
                   2716: .Pp
                   2717: To discourage attacks by using large dictionaries of common passwords,
                   2718: the algorithm that derives keys from passwords can have an iteration count
                   2719: applied to it: this causes a certain part of the algorithm to be repeated
                   2720: and slows it down.
                   2721: The MAC is used to check the file integrity but since it will normally
                   2722: have the same password as the keys and certificates it could also be attacked.
                   2723: By default, both MAC and encryption iteration counts are set to 2048;
                   2724: using these options the MAC and encryption iteration counts can be set to 1.
                   2725: Since this reduces the file security you should not use these options
                   2726: unless you really have to.
                   2727: Most software supports both MAC and key iteration counts.
                   2728: MSIE 4.0 doesn't support MAC iteration counts, so it needs the
                   2729: .Fl nomaciter
                   2730: option.
                   2731: .It Fl out Ar file
1.59      jmc      2732: The output file to write to,
                   2733: or standard output if not specified.
1.1       jsing    2734: .It Fl passin Ar arg
                   2735: The key password source.
                   2736: .It Fl passout Ar arg
                   2737: The output file password source.
                   2738: .El
                   2739: .Sh PKEY
                   2740: .nr nS 1
                   2741: .Nm "openssl pkey"
                   2742: .Op Ar cipher
                   2743: .Op Fl in Ar file
1.60      jmc      2744: .Op Fl inform Cm der | pem
1.1       jsing    2745: .Op Fl noout
                   2746: .Op Fl out Ar file
1.60      jmc      2747: .Op Fl outform Cm der | pem
1.1       jsing    2748: .Op Fl passin Ar arg
                   2749: .Op Fl passout Ar arg
                   2750: .Op Fl pubin
                   2751: .Op Fl pubout
                   2752: .Op Fl text
                   2753: .Op Fl text_pub
                   2754: .nr nS 0
                   2755: .Pp
                   2756: The
                   2757: .Nm pkey
                   2758: command processes public or private keys.
                   2759: They can be converted between various forms
                   2760: and their components printed out.
                   2761: .Pp
                   2762: The options are as follows:
                   2763: .Bl -tag -width Ds
                   2764: .It Ar cipher
1.60      jmc      2765: Encrypt the private key with the specified cipher.
1.1       jsing    2766: Any algorithm name accepted by
1.60      jmc      2767: .Xr EVP_get_cipherbyname 3
1.1       jsing    2768: is acceptable, such as
                   2769: .Cm des3 .
                   2770: .It Fl in Ar file
1.60      jmc      2771: The input file to read from,
                   2772: or standard input if not specified.
1.1       jsing    2773: If the key is encrypted a pass phrase will be prompted for.
1.60      jmc      2774: .It Fl inform Cm der | pem
                   2775: The input format.
1.1       jsing    2776: .It Fl noout
                   2777: Do not output the encoded version of the key.
                   2778: .It Fl out Ar file
1.60      jmc      2779: The output file to write to,
                   2780: or standard output if not specified.
1.1       jsing    2781: If any encryption options are set then a pass phrase
                   2782: will be prompted for.
1.60      jmc      2783: .It Fl outform Cm der | pem
                   2784: The output format.
1.1       jsing    2785: .It Fl passin Ar arg
                   2786: The key password source.
                   2787: .It Fl passout Ar arg
                   2788: The output file password source.
                   2789: .It Fl pubin
1.60      jmc      2790: Read in a public key, not a private key.
1.1       jsing    2791: .It Fl pubout
1.60      jmc      2792: Output a public key, not a private key.
                   2793: Automatically set if the input is a public key.
1.1       jsing    2794: .It Fl text
1.64      jmc      2795: Print the public/private key in plain text.
1.1       jsing    2796: .It Fl text_pub
                   2797: Print out only public key components
                   2798: even if a private key is being processed.
                   2799: .El
                   2800: .Sh PKEYPARAM
                   2801: .Cm openssl pkeyparam
                   2802: .Op Fl in Ar file
                   2803: .Op Fl noout
                   2804: .Op Fl out Ar file
                   2805: .Op Fl text
                   2806: .Pp
                   2807: The
1.61      jmc      2808: .Nm pkeyparam
1.1       jsing    2809: command processes public or private keys.
1.61      jmc      2810: The key type is determined by the PEM headers.
1.1       jsing    2811: .Pp
                   2812: The options are as follows:
                   2813: .Bl -tag -width Ds
                   2814: .It Fl in Ar file
1.61      jmc      2815: The input file to read from,
                   2816: or standard input if not specified.
1.1       jsing    2817: .It Fl noout
                   2818: Do not output the encoded version of the parameters.
                   2819: .It Fl out Ar file
1.61      jmc      2820: The output file to write to,
                   2821: or standard output if not specified.
1.1       jsing    2822: .It Fl text
1.64      jmc      2823: Print the parameters in plain text.
1.1       jsing    2824: .El
                   2825: .Sh PKEYUTL
                   2826: .nr nS 1
                   2827: .Nm "openssl pkeyutl"
                   2828: .Op Fl asn1parse
                   2829: .Op Fl certin
                   2830: .Op Fl decrypt
                   2831: .Op Fl derive
                   2832: .Op Fl encrypt
                   2833: .Op Fl hexdump
                   2834: .Op Fl in Ar file
                   2835: .Op Fl inkey Ar file
1.62      jmc      2836: .Op Fl keyform Cm der | pem
1.1       jsing    2837: .Op Fl out Ar file
                   2838: .Op Fl passin Ar arg
1.62      jmc      2839: .Op Fl peerform Cm der | pem
1.1       jsing    2840: .Op Fl peerkey Ar file
                   2841: .Op Fl pkeyopt Ar opt : Ns Ar value
                   2842: .Op Fl pubin
                   2843: .Op Fl rev
                   2844: .Op Fl sigfile Ar file
                   2845: .Op Fl sign
                   2846: .Op Fl verify
                   2847: .Op Fl verifyrecover
                   2848: .nr nS 0
                   2849: .Pp
                   2850: The
                   2851: .Nm pkeyutl
                   2852: command can be used to perform public key operations using
                   2853: any supported algorithm.
                   2854: .Pp
                   2855: The options are as follows:
                   2856: .Bl -tag -width Ds
                   2857: .It Fl asn1parse
                   2858: ASN1parse the output data.
                   2859: This is useful when combined with the
                   2860: .Fl verifyrecover
                   2861: option when an ASN1 structure is signed.
                   2862: .It Fl certin
                   2863: The input is a certificate containing a public key.
                   2864: .It Fl decrypt
                   2865: Decrypt the input data using a private key.
                   2866: .It Fl derive
                   2867: Derive a shared secret using the peer key.
                   2868: .It Fl encrypt
                   2869: Encrypt the input data using a public key.
                   2870: .It Fl hexdump
                   2871: Hex dump the output data.
                   2872: .It Fl in Ar file
1.62      jmc      2873: The input file to read from,
                   2874: or standard input if not specified.
1.1       jsing    2875: .It Fl inkey Ar file
                   2876: The input key file.
                   2877: By default it should be a private key.
1.62      jmc      2878: .It Fl keyform Cm der | pem
                   2879: The key format.
1.1       jsing    2880: .It Fl out Ar file
1.62      jmc      2881: The output file to write to,
                   2882: or standard output if not specified.
1.1       jsing    2883: .It Fl passin Ar arg
                   2884: The key password source.
1.62      jmc      2885: .It Fl peerform Cm der | pem
                   2886: The peer key format.
1.1       jsing    2887: .It Fl peerkey Ar file
                   2888: The peer key file, used by key derivation (agreement) operations.
                   2889: .It Fl pkeyopt Ar opt : Ns Ar value
1.62      jmc      2890: Set the public key algorithm option
                   2891: .Ar opt
                   2892: to
                   2893: .Ar value .
                   2894: Unless otherwise mentioned, all algorithms support the format
                   2895: .Ar digest : Ns Ar alg ,
                   2896: which specifies the digest to use
1.1       jsing    2897: for sign, verify, and verifyrecover operations.
                   2898: The value
                   2899: .Ar alg
                   2900: should represent a digest name as used in the
1.62      jmc      2901: .Xr EVP_get_digestbyname 3
                   2902: function.
                   2903: .Pp
1.1       jsing    2904: The RSA algorithm supports the
                   2905: encrypt, decrypt, sign, verify, and verifyrecover operations in general.
                   2906: Some padding modes only support some of these
                   2907: operations however.
                   2908: .Bl -tag -width Ds
                   2909: .It rsa_padding_mode : Ns Ar mode
                   2910: This sets the RSA padding mode.
                   2911: Acceptable values for
                   2912: .Ar mode
                   2913: are
                   2914: .Cm pkcs1
                   2915: for PKCS#1 padding;
                   2916: .Cm none
                   2917: for no padding;
                   2918: .Cm oaep
                   2919: for OAEP mode;
                   2920: .Cm x931
                   2921: for X9.31 mode;
                   2922: and
                   2923: .Cm pss
                   2924: for PSS.
                   2925: .Pp
                   2926: In PKCS#1 padding if the message digest is not set then the supplied data is
                   2927: signed or verified directly instead of using a DigestInfo structure.
                   2928: If a digest is set then a DigestInfo
                   2929: structure is used and its length
                   2930: must correspond to the digest type.
                   2931: For oeap mode only encryption and decryption is supported.
                   2932: For x931 if the digest type is set it is used to format the block data;
                   2933: otherwise the first byte is used to specify the X9.31 digest ID.
                   2934: Sign, verify, and verifyrecover can be performed in this mode.
                   2935: For pss mode only sign and verify are supported and the digest type must be
                   2936: specified.
                   2937: .It rsa_pss_saltlen : Ns Ar len
                   2938: For pss
                   2939: mode only this option specifies the salt length.
                   2940: Two special values are supported:
                   2941: -1 sets the salt length to the digest length.
                   2942: When signing -2 sets the salt length to the maximum permissible value.
                   2943: When verifying -2 causes the salt length to be automatically determined
                   2944: based on the PSS block structure.
                   2945: .El
1.62      jmc      2946: .Pp
1.1       jsing    2947: The DSA algorithm supports the sign and verify operations.
                   2948: Currently there are no additional options other than
                   2949: .Ar digest .
                   2950: Only the SHA1 digest can be used and this digest is assumed by default.
1.62      jmc      2951: .Pp
1.1       jsing    2952: The DH algorithm supports the derive operation
                   2953: and no additional options.
1.62      jmc      2954: .Pp
1.1       jsing    2955: The EC algorithm supports the sign, verify, and derive operations.
                   2956: The sign and verify operations use ECDSA and derive uses ECDH.
                   2957: Currently there are no additional options other than
                   2958: .Ar digest .
                   2959: Only the SHA1 digest can be used and this digest is assumed by default.
1.62      jmc      2960: .It Fl pubin
                   2961: The input file is a public key.
                   2962: .It Fl rev
                   2963: Reverse the order of the input buffer.
                   2964: .It Fl sigfile Ar file
                   2965: Signature file (verify operation only).
                   2966: .It Fl sign
                   2967: Sign the input data and output the signed result.
                   2968: This requires a private key.
                   2969: .It Fl verify
                   2970: Verify the input data against the signature file and indicate if the
                   2971: verification succeeded or failed.
                   2972: .It Fl verifyrecover
                   2973: Verify the input data and output the recovered data.
                   2974: .El
1.1       jsing    2975: .Sh PRIME
                   2976: .Cm openssl prime
                   2977: .Op Fl bits Ar n
                   2978: .Op Fl checks Ar n
                   2979: .Op Fl generate
                   2980: .Op Fl hex
                   2981: .Op Fl safe
                   2982: .Ar p
                   2983: .Pp
                   2984: The
                   2985: .Nm prime
                   2986: command is used to generate prime numbers,
                   2987: or to check numbers for primality.
                   2988: Results are probabilistic:
                   2989: they have an exceedingly high likelihood of being correct,
                   2990: but are not guaranteed.
                   2991: .Pp
                   2992: The options are as follows:
                   2993: .Bl -tag -width Ds
                   2994: .It Fl bits Ar n
                   2995: Specify the number of bits in the generated prime number.
                   2996: Must be used in conjunction with
                   2997: .Fl generate .
                   2998: .It Fl checks Ar n
                   2999: Perform a Miller-Rabin probabilistic primality test with
                   3000: .Ar n
                   3001: iterations.
                   3002: The default is 20.
                   3003: .It Fl generate
                   3004: Generate a pseudo-random prime number.
                   3005: Must be used in conjunction with
                   3006: .Fl bits .
                   3007: .It Fl hex
                   3008: Output in hex format.
                   3009: .It Fl safe
                   3010: Generate only
                   3011: .Qq safe
                   3012: prime numbers
                   3013: (i.e. a prime p so that (p-1)/2 is also prime).
                   3014: .It Ar p
                   3015: Test if number
                   3016: .Ar p
                   3017: is prime.
                   3018: .El
                   3019: .Sh RAND
                   3020: .nr nS 1
                   3021: .Nm "openssl rand"
                   3022: .Op Fl base64
                   3023: .Op Fl hex
                   3024: .Op Fl out Ar file
                   3025: .Ar num
                   3026: .nr nS 0
                   3027: .Pp
                   3028: The
                   3029: .Nm rand
                   3030: command outputs
                   3031: .Ar num
                   3032: pseudo-random bytes.
                   3033: .Pp
                   3034: The options are as follows:
                   3035: .Bl -tag -width Ds
                   3036: .It Fl base64
                   3037: Perform
                   3038: .Em base64
                   3039: encoding on the output.
                   3040: .It Fl hex
                   3041: Specify hexadecimal output.
                   3042: .It Fl out Ar file
1.63      jmc      3043: The output file to write to,
                   3044: or standard output if not specified.
1.1       jsing    3045: .El
                   3046: .Sh REQ
                   3047: .nr nS 1
                   3048: .Nm "openssl req"
                   3049: .Op Fl asn1-kludge
                   3050: .Op Fl batch
                   3051: .Op Fl config Ar file
                   3052: .Op Fl days Ar n
                   3053: .Op Fl extensions Ar section
                   3054: .Op Fl in Ar file
1.63      jmc      3055: .Op Fl inform Cm der | pem
1.1       jsing    3056: .Op Fl key Ar keyfile
1.63      jmc      3057: .Op Fl keyform Cm der | pem
1.1       jsing    3058: .Op Fl keyout Ar file
1.28      doug     3059: .Op Fl md4 | md5 | sha1
1.1       jsing    3060: .Op Fl modulus
                   3061: .Op Fl nameopt Ar option
                   3062: .Op Fl new
                   3063: .Op Fl newhdr
                   3064: .Op Fl newkey Ar arg
                   3065: .Op Fl no-asn1-kludge
                   3066: .Op Fl nodes
                   3067: .Op Fl noout
                   3068: .Op Fl out Ar file
1.63      jmc      3069: .Op Fl outform Cm der | pem
1.1       jsing    3070: .Op Fl passin Ar arg
                   3071: .Op Fl passout Ar arg
                   3072: .Op Fl pubkey
                   3073: .Op Fl reqexts Ar section
                   3074: .Op Fl reqopt Ar option
                   3075: .Op Fl set_serial Ar n
                   3076: .Op Fl subj Ar arg
                   3077: .Op Fl subject
                   3078: .Op Fl text
                   3079: .Op Fl utf8
                   3080: .Op Fl verbose
                   3081: .Op Fl verify
                   3082: .Op Fl x509
                   3083: .nr nS 0
                   3084: .Pp
                   3085: The
                   3086: .Nm req
                   3087: command primarily creates and processes certificate requests
                   3088: in PKCS#10 format.
                   3089: It can additionally create self-signed certificates,
                   3090: for use as root CAs, for example.
                   3091: .Pp
                   3092: The options are as follows:
                   3093: .Bl -tag -width Ds
                   3094: .It Fl asn1-kludge
1.63      jmc      3095: Produce requests in an invalid format for certain picky CAs.
                   3096: Very few CAs still require the use of this option.
1.1       jsing    3097: .It Fl batch
                   3098: Non-interactive mode.
                   3099: .It Fl config Ar file
1.63      jmc      3100: Specify an alternative configuration file.
1.1       jsing    3101: .It Fl days Ar n
1.63      jmc      3102: Specify the number of days to certify the certificate for.
                   3103: The default is 30 days.
                   3104: Used with the
1.1       jsing    3105: .Fl x509
1.63      jmc      3106: option.
1.1       jsing    3107: .It Fl extensions Ar section , Fl reqexts Ar section
1.63      jmc      3108: Specify alternative sections to include certificate
                   3109: extensions (with
                   3110: .Fl x509 )
                   3111: or certificate request extensions,
                   3112: allowing several different sections to be used in the same configuration file.
1.1       jsing    3113: .It Fl in Ar file
1.63      jmc      3114: The input file to read a request from,
                   3115: or standard input if not specified.
1.1       jsing    3116: A request is only read if the creation options
                   3117: .Fl new
                   3118: and
                   3119: .Fl newkey
                   3120: are not specified.
1.63      jmc      3121: .It Fl inform Cm der | pem
                   3122: The input format.
1.1       jsing    3123: .It Fl key Ar keyfile
1.63      jmc      3124: The file to read the private key from.
1.1       jsing    3125: It also accepts PKCS#8 format private keys for PEM format files.
1.63      jmc      3126: .It Fl keyform Cm der | pem
1.1       jsing    3127: The format of the private key file specified in the
                   3128: .Fl key
                   3129: argument.
1.63      jmc      3130: The default is PEM.
1.1       jsing    3131: .It Fl keyout Ar file
1.63      jmc      3132: The file to write the newly created private key to.
                   3133: If this option is not specified,
                   3134: the filename present in the configuration file is used.
1.4       sthen    3135: .It Fl md5 | sha1 | sha256
1.63      jmc      3136: The message digest to sign the request with.
1.1       jsing    3137: This overrides the digest algorithm specified in the configuration file.
                   3138: .Pp
                   3139: Some public key algorithms may override this choice.
                   3140: For instance, DSA signatures always use SHA1.
                   3141: .It Fl modulus
1.63      jmc      3142: Print the value of the modulus of the public key contained in the request.
1.1       jsing    3143: .It Fl nameopt Ar option , Fl reqopt Ar option
1.63      jmc      3144: Determine how the subject or issuer names are displayed.
1.1       jsing    3145: .Ar option
1.63      jmc      3146: can be a single option or multiple options separated by commas.
1.1       jsing    3147: Alternatively, these options may be used more than once to set multiple options.
                   3148: See the
                   3149: .Sx X509
                   3150: section below for details.
                   3151: .It Fl new
1.63      jmc      3152: Generate a new certificate request.
                   3153: The user is prompted for the relevant field values.
1.1       jsing    3154: The actual fields prompted for and their maximum and minimum sizes
                   3155: are specified in the configuration file and any requested extensions.
                   3156: .Pp
                   3157: If the
                   3158: .Fl key
                   3159: option is not used, it will generate a new RSA private
                   3160: key using information specified in the configuration file.
                   3161: .It Fl newhdr
1.63      jmc      3162: Add the word NEW to the PEM file header and footer lines
1.1       jsing    3163: on the outputed request.
1.63      jmc      3164: Some software and CAs need this.
1.1       jsing    3165: .It Fl newkey Ar arg
1.63      jmc      3166: Create a new certificate request and a new private key.
1.1       jsing    3167: The argument takes one of several forms.
1.63      jmc      3168: .Pp
                   3169: .No rsa : Ns Ar nbits
                   3170: generates an RSA key
1.1       jsing    3171: .Ar nbits
                   3172: in size.
                   3173: If
                   3174: .Ar nbits
1.63      jmc      3175: is omitted
                   3176: the default key size is used.
                   3177: .Pp
                   3178: .No dsa : Ns Ar file
                   3179: generates a DSA key using the parameters in
                   3180: .Ar file .
                   3181: .Pp
                   3182: .No param : Ns Ar file
                   3183: generates a key using the parameters or certificate in
                   3184: .Ar file .
                   3185: .Pp
                   3186: All other algorithms support the form
                   3187: .Ar algorithm : Ns Ar file ,
1.1       jsing    3188: where file may be an algorithm parameter file,
                   3189: created by the
                   3190: .Cm genpkey -genparam
1.14      jmc      3191: command or an X.509 certificate for a key with appropriate algorithm.
1.63      jmc      3192: .Ar file
                   3193: can be omitted,
                   3194: in which case any parameters can be specified via the
1.1       jsing    3195: .Fl pkeyopt
                   3196: option.
                   3197: .It Fl no-asn1-kludge
1.63      jmc      3198: Reverse the effect of
1.1       jsing    3199: .Fl asn1-kludge .
                   3200: .It Fl nodes
1.63      jmc      3201: Do not encrypt the private key.
1.1       jsing    3202: .It Fl noout
1.63      jmc      3203: Do not output the encoded version of the request.
1.1       jsing    3204: .It Fl out Ar file
1.63      jmc      3205: The output file to write to,
                   3206: or standard output if not spceified.
                   3207: .It Fl outform Cm der | pem
                   3208: The output format.
1.1       jsing    3209: .It Fl passin Ar arg
                   3210: The key password source.
                   3211: .It Fl passout Ar arg
                   3212: The output file password source.
                   3213: .It Fl pubkey
1.63      jmc      3214: Output the public key.
1.1       jsing    3215: .It Fl reqopt Ar option
                   3216: Customise the output format used with
                   3217: .Fl text .
                   3218: The
                   3219: .Ar option
                   3220: argument can be a single option or multiple options separated by commas.
1.63      jmc      3221: See also the discussion of
1.1       jsing    3222: .Fl certopt
1.63      jmc      3223: in the
1.1       jsing    3224: .Nm x509
                   3225: command.
                   3226: .It Fl set_serial Ar n
                   3227: Serial number to use when outputting a self-signed certificate.
                   3228: This may be specified as a decimal value or a hex value if preceded by
                   3229: .Sq 0x .
                   3230: It is possible to use negative serial numbers but this is not recommended.
                   3231: .It Fl subj Ar arg
1.63      jmc      3232: Replaces the subject field of an input request
                   3233: with the specified data and output the modified request.
                   3234: .Ar arg
                   3235: must be formatted as /type0=value0/type1=value1/type2=...;
1.1       jsing    3236: characters may be escaped by
                   3237: .Sq \e
1.63      jmc      3238: (backslash);
1.1       jsing    3239: no spaces are skipped.
                   3240: .It Fl subject
1.63      jmc      3241: Print the request subject (or certificate subject if
1.1       jsing    3242: .Fl x509
1.63      jmc      3243: is specified).
1.1       jsing    3244: .It Fl text
1.64      jmc      3245: Print the certificate request in plain text.
1.1       jsing    3246: .It Fl utf8
1.63      jmc      3247: Interpret field values as UTF8 strings, not ASCII.
1.1       jsing    3248: .It Fl verbose
                   3249: Print extra details about the operations being performed.
                   3250: .It Fl verify
1.63      jmc      3251: Verify the signature on the request.
1.1       jsing    3252: .It Fl x509
1.63      jmc      3253: Output a self-signed certificate instead of a certificate request.
                   3254: This is typically used to generate a test certificate or a self-signed root CA.
                   3255: The extensions added to the certificate (if any)
1.1       jsing    3256: are specified in the configuration file.
                   3257: Unless specified using the
                   3258: .Fl set_serial
1.63      jmc      3259: option, 0 is used for the serial number.
1.1       jsing    3260: .El
1.63      jmc      3261: .Pp
1.1       jsing    3262: The configuration options are specified in the
1.63      jmc      3263: .Qq req
1.1       jsing    3264: section of the configuration file.
1.63      jmc      3265: The options available are as follows:
1.1       jsing    3266: .Bl -tag -width "XXXX"
1.63      jmc      3267: .It Cm attributes
                   3268: The section containing any request attributes: its format
1.1       jsing    3269: is the same as
1.63      jmc      3270: .Cm distinguished_name .
                   3271: Typically these may contain the challengePassword or unstructuredName types.
                   3272: They are currently ignored by the
                   3273: .Nm openssl
1.1       jsing    3274: request signing utilities, but some CAs might want them.
1.63      jmc      3275: .It Cm default_bits
                   3276: The default key size, in bits.
                   3277: The default is 2048.
1.1       jsing    3278: It is used if the
                   3279: .Fl new
1.63      jmc      3280: option is used and can be overridden by using the
1.1       jsing    3281: .Fl newkey
                   3282: option.
1.63      jmc      3283: .It Cm default_keyfile
                   3284: The default file to write a private key to,
                   3285: or standard output if not specified.
                   3286: It can be overridden by the
1.1       jsing    3287: .Fl keyout
                   3288: option.
1.63      jmc      3289: .It Cm default_md
                   3290: The digest algorithm to use.
1.1       jsing    3291: Possible values include
1.63      jmc      3292: .Cm md5 ,
                   3293: .Cm sha1
1.1       jsing    3294: and
1.63      jmc      3295: .Cm sha256
                   3296: (the default).
                   3297: It can be overridden on the command line.
                   3298: .It Cm distinguished_name
                   3299: The section containing the distinguished name fields to
1.1       jsing    3300: prompt for when generating a certificate or certificate request.
1.63      jmc      3301: The format is described below.
                   3302: .It Cm encrypt_key
                   3303: If set to
                   3304: .Qq no
                   3305: and a private key is generated, it is not encrypted.
                   3306: It is equivalent to the
1.1       jsing    3307: .Fl nodes
1.63      jmc      3308: option.
1.1       jsing    3309: For compatibility,
1.63      jmc      3310: .Cm encrypt_rsa_key
1.1       jsing    3311: is an equivalent option.
1.63      jmc      3312: .It Cm input_password | output_password
                   3313: The passwords for the input private key file (if present)
                   3314: and the output private key file (if one will be created).
1.1       jsing    3315: The command line options
                   3316: .Fl passin
                   3317: and
                   3318: .Fl passout
                   3319: override the configuration file values.
1.63      jmc      3320: .It Cm oid_file
                   3321: A file containing additional OBJECT IDENTIFIERS.
1.1       jsing    3322: Each line of the file should consist of the numerical form of the
                   3323: object identifier, followed by whitespace, then the short name followed
                   3324: by whitespace and finally the long name.
1.63      jmc      3325: .It Cm oid_section
                   3326: Specify a section in the configuration file containing extra
1.1       jsing    3327: object identifiers.
                   3328: Each line should consist of the short name of the
                   3329: object identifier followed by
                   3330: .Sq =
                   3331: and the numerical form.
                   3332: The short and long names are the same when this option is used.
1.63      jmc      3333: .It Cm prompt
                   3334: If set to
                   3335: .Qq no ,
                   3336: it disables prompting of certificate fields
1.1       jsing    3337: and just takes values from the config file directly.
                   3338: It also changes the expected format of the
1.63      jmc      3339: .Cm distinguished_name
1.1       jsing    3340: and
1.63      jmc      3341: .Cm attributes
1.1       jsing    3342: sections.
1.63      jmc      3343: .It Cm req_extensions
                   3344: The configuration file section containing a list of
1.1       jsing    3345: extensions to add to the certificate request.
                   3346: It can be overridden by the
                   3347: .Fl reqexts
1.63      jmc      3348: option.
                   3349: .It Cm string_mask
                   3350: Limit the string types for encoding certain fields.
1.1       jsing    3351: The following values may be used, limiting strings to the indicated types:
                   3352: .Bl -tag -width "MASK:number"
1.63      jmc      3353: .It Cm utf8only
                   3354: UTF8String.
1.1       jsing    3355: This is the default, as recommended by PKIX in RFC 2459.
1.63      jmc      3356: .It Cm default
                   3357: PrintableString, IA5String, T61String, BMPString, UTF8String.
                   3358: .It Cm pkix
                   3359: PrintableString, IA5String, BMPString, UTF8String.
                   3360: Inspired by the PKIX recommendation in RFC 2459 for certificates
                   3361: generated before 2004, but differs by also permitting IA5String.
                   3362: .It Cm nombstr
                   3363: PrintableString, IA5String, T61String, UniversalString.
                   3364: A workaround for some ancient software that had problems
                   3365: with the variable-sized BMPString and UTF8String types.
1.1       jsing    3366: .It Cm MASK : Ns Ar number
1.63      jmc      3367: An explicit bitmask of permitted types, where
1.1       jsing    3368: .Ar number
                   3369: is a C-style hex, decimal, or octal number that's a bit-wise OR of
                   3370: .Dv B_ASN1_*
                   3371: values from
                   3372: .In openssl/asn1.h .
                   3373: .El
1.63      jmc      3374: .It Cm utf8
                   3375: If set to
                   3376: .Qq yes ,
1.72      jmc      3377: field values are interpreted as UTF8 strings.
1.63      jmc      3378: .It Cm x509_extensions
                   3379: The configuration file section containing a list of
1.1       jsing    3380: extensions to add to a certificate generated when the
                   3381: .Fl x509
                   3382: switch is used.
                   3383: It can be overridden by the
                   3384: .Fl extensions
1.72      jmc      3385: command line switch.
1.1       jsing    3386: .El
1.63      jmc      3387: .Pp
1.1       jsing    3388: There are two separate formats for the distinguished name and attribute
                   3389: sections.
                   3390: If the
                   3391: .Fl prompt
                   3392: option is set to
1.63      jmc      3393: .Qq no ,
1.72      jmc      3394: then these sections just consist of field names and values.
                   3395: If the
1.1       jsing    3396: .Fl prompt
                   3397: option is absent or not set to
1.63      jmc      3398: .Qq no ,
1.72      jmc      3399: then the file contains field prompting information of the form:
1.1       jsing    3400: .Bd -unfilled -offset indent
                   3401: fieldName="prompt"
                   3402: fieldName_default="default field value"
                   3403: fieldName_min= 2
                   3404: fieldName_max= 4
                   3405: .Ed
                   3406: .Pp
                   3407: .Qq fieldName
                   3408: is the field name being used, for example
1.63      jmc      3409: .Cm commonName
                   3410: (or CN).
1.1       jsing    3411: The
                   3412: .Qq prompt
                   3413: string is used to ask the user to enter the relevant details.
                   3414: If the user enters nothing, the default value is used;
                   3415: if no default value is present, the field is omitted.
                   3416: A field can still be omitted if a default value is present,
                   3417: if the user just enters the
                   3418: .Sq \&.
                   3419: character.
                   3420: .Pp
                   3421: The number of characters entered must be between the
1.63      jmc      3422: fieldName_min and fieldName_max limits:
1.1       jsing    3423: there may be additional restrictions based on the field being used
                   3424: (for example
1.63      jmc      3425: .Cm countryName
1.1       jsing    3426: can only ever be two characters long and must fit in a
1.63      jmc      3427: .Cm PrintableString ) .
1.1       jsing    3428: .Pp
                   3429: Some fields (such as
1.63      jmc      3430: .Cm organizationName )
1.1       jsing    3431: can be used more than once in a DN.
                   3432: This presents a problem because configuration files will
                   3433: not recognize the same name occurring twice.
                   3434: To avoid this problem, if the
1.63      jmc      3435: .Cm fieldName
1.1       jsing    3436: contains some characters followed by a full stop, they will be ignored.
                   3437: So, for example, a second
1.63      jmc      3438: .Cm organizationName
1.1       jsing    3439: can be input by calling it
                   3440: .Qq 1.organizationName .
                   3441: .Pp
                   3442: The actual permitted field names are any object identifier short or
                   3443: long names.
                   3444: These are compiled into
1.63      jmc      3445: .Nm openssl
1.1       jsing    3446: and include the usual values such as
1.63      jmc      3447: .Cm commonName , countryName , localityName , organizationName ,
                   3448: .Cm organizationUnitName , stateOrProvinceName .
1.1       jsing    3449: Additionally,
1.63      jmc      3450: .Cm emailAddress
1.1       jsing    3451: is included as well as
1.63      jmc      3452: .Cm name , surname , givenName , initials
1.1       jsing    3453: and
1.63      jmc      3454: .Cm dnQualifier .
1.1       jsing    3455: .Pp
                   3456: Additional object identifiers can be defined with the
1.63      jmc      3457: .Cm oid_file
1.1       jsing    3458: or
1.63      jmc      3459: .Cm oid_section
1.1       jsing    3460: options in the configuration file.
                   3461: Any additional fields will be treated as though they were a
1.63      jmc      3462: .Cm DirectoryString .
1.1       jsing    3463: .Sh RSA
                   3464: .nr nS 1
                   3465: .Nm "openssl rsa"
1.64      jmc      3466: .Op Fl aes128 | aes192 | aes256 | des | des3
1.1       jsing    3467: .Op Fl check
                   3468: .Op Fl in Ar file
1.64      jmc      3469: .Op Fl inform Cm der | net | pem
1.1       jsing    3470: .Op Fl modulus
                   3471: .Op Fl noout
                   3472: .Op Fl out Ar file
1.64      jmc      3473: .Op Fl outform Cm der | net | pem
1.1       jsing    3474: .Op Fl passin Ar arg
                   3475: .Op Fl passout Ar arg
                   3476: .Op Fl pubin
                   3477: .Op Fl pubout
                   3478: .Op Fl sgckey
                   3479: .Op Fl text
                   3480: .nr nS 0
                   3481: .Pp
                   3482: The
                   3483: .Nm rsa
                   3484: command processes RSA keys.
                   3485: They can be converted between various forms and their components printed out.
1.64      jmc      3486: .Nm rsa
                   3487: uses the traditional
1.1       jsing    3488: .Nm SSLeay
                   3489: compatible format for private key encryption:
                   3490: newer applications should use the more secure PKCS#8 format using the
                   3491: .Nm pkcs8
                   3492: utility.
                   3493: .Pp
                   3494: The options are as follows:
                   3495: .Bl -tag -width Ds
1.64      jmc      3496: .It Fl aes128 | aes192 | aes256 | des | des3
                   3497: Encrypt the private key with the AES, DES,
1.1       jsing    3498: or the triple DES ciphers, respectively, before outputting it.
                   3499: A pass phrase is prompted for.
                   3500: If none of these options are specified, the key is written in plain text.
                   3501: This means that using the
                   3502: .Nm rsa
                   3503: utility to read in an encrypted key with no encryption option can be used
                   3504: to remove the pass phrase from a key, or by setting the encryption options
                   3505: it can be used to add or change the pass phrase.
                   3506: These options can only be used with PEM format output files.
                   3507: .It Fl check
1.64      jmc      3508: Check the consistency of an RSA private key.
1.1       jsing    3509: .It Fl in Ar file
1.64      jmc      3510: The input file to read from,
                   3511: or standard input if not specified.
1.1       jsing    3512: If the key is encrypted, a pass phrase will be prompted for.
1.64      jmc      3513: .It Fl inform Cm der | net | pem
                   3514: The input format.
1.1       jsing    3515: .It Fl noout
1.64      jmc      3516: Do not output the encoded version of the key.
1.1       jsing    3517: .It Fl modulus
1.64      jmc      3518: Print the value of the modulus of the key.
1.1       jsing    3519: .It Fl out Ar file
1.64      jmc      3520: The output file to write to,
                   3521: or standard output if not specified.
                   3522: .It Fl outform Cm der | net | pem
                   3523: The output format.
1.1       jsing    3524: .It Fl passin Ar arg
                   3525: The key password source.
                   3526: .It Fl passout Ar arg
                   3527: The output file password source.
                   3528: .It Fl pubin
1.64      jmc      3529: Read in a public key,
                   3530: not a private key.
1.1       jsing    3531: .It Fl pubout
1.64      jmc      3532: Output a public key,
                   3533: not a private key.
                   3534: Automatically set if the input is a public key.
1.1       jsing    3535: .It Fl sgckey
1.64      jmc      3536: Use the modified NET algorithm used with some versions of Microsoft IIS
                   3537: and SGC keys.
1.1       jsing    3538: .It Fl text
1.64      jmc      3539: Print the public/private key components in plain text.
1.1       jsing    3540: .El
                   3541: .Sh RSAUTL
                   3542: .nr nS 1
                   3543: .Nm "openssl rsautl"
                   3544: .Op Fl asn1parse
                   3545: .Op Fl certin
                   3546: .Op Fl decrypt
                   3547: .Op Fl encrypt
                   3548: .Op Fl hexdump
                   3549: .Op Fl in Ar file
                   3550: .Op Fl inkey Ar file
1.65      jmc      3551: .Op Fl keyform Cm der | pem
1.1       jsing    3552: .Op Fl oaep | pkcs | raw | ssl
                   3553: .Op Fl out Ar file
                   3554: .Op Fl pubin
                   3555: .Op Fl sign
                   3556: .Op Fl verify
                   3557: .nr nS 0
                   3558: .Pp
                   3559: The
                   3560: .Nm rsautl
                   3561: command can be used to sign, verify, encrypt and decrypt
                   3562: data using the RSA algorithm.
                   3563: .Pp
                   3564: The options are as follows:
                   3565: .Bl -tag -width Ds
                   3566: .It Fl asn1parse
                   3567: Asn1parse the output data; this is useful when combined with the
                   3568: .Fl verify
                   3569: option.
                   3570: .It Fl certin
                   3571: The input is a certificate containing an RSA public key.
                   3572: .It Fl decrypt
                   3573: Decrypt the input data using an RSA private key.
                   3574: .It Fl encrypt
                   3575: Encrypt the input data using an RSA public key.
                   3576: .It Fl hexdump
                   3577: Hex dump the output data.
                   3578: .It Fl in Ar file
1.65      jmc      3579: The input to read from,
                   3580: or standard input if not specified.
1.1       jsing    3581: .It Fl inkey Ar file
1.65      jmc      3582: The input key file; by default an RSA private key.
                   3583: .It Fl keyform Cm der | pem
                   3584: The private ket format.
                   3585: The default is
                   3586: .Cm pem .
1.1       jsing    3587: .It Fl oaep | pkcs | raw | ssl
                   3588: The padding to use:
1.65      jmc      3589: PKCS#1 OAEP, PKCS#1 v1.5 (the default), or no padding, respectively.
1.1       jsing    3590: For signatures, only
                   3591: .Fl pkcs
                   3592: and
                   3593: .Fl raw
                   3594: can be used.
                   3595: .It Fl out Ar file
1.65      jmc      3596: The output file to write to,
                   3597: or standard output if not specified.
1.1       jsing    3598: .It Fl pubin
                   3599: The input file is an RSA public key.
                   3600: .It Fl sign
                   3601: Sign the input data and output the signed result.
                   3602: This requires an RSA private key.
                   3603: .It Fl verify
                   3604: Verify the input data and output the recovered data.
                   3605: .El
                   3606: .Sh S_CLIENT
                   3607: .nr nS 1
                   3608: .Nm "openssl s_client"
                   3609: .Op Fl 4 | 6
                   3610: .Op Fl bugs
                   3611: .Op Fl CAfile Ar file
                   3612: .Op Fl CApath Ar directory
                   3613: .Op Fl cert Ar file
                   3614: .Op Fl check_ss_sig
                   3615: .Op Fl cipher Ar cipherlist
1.66      jmc      3616: .Op Fl connect Ar host Ns Op : Ns Ar port
1.1       jsing    3617: .Op Fl crl_check
                   3618: .Op Fl crl_check_all
                   3619: .Op Fl crlf
                   3620: .Op Fl debug
                   3621: .Op Fl extended_crl
                   3622: .Op Fl ign_eof
                   3623: .Op Fl ignore_critical
                   3624: .Op Fl issuer_checks
                   3625: .Op Fl key Ar keyfile
                   3626: .Op Fl msg
                   3627: .Op Fl nbio
                   3628: .Op Fl nbio_test
                   3629: .Op Fl no_ticket
                   3630: .Op Fl no_tls1
1.6       guenther 3631: .Op Fl no_tls1_1
                   3632: .Op Fl no_tls1_2
1.1       jsing    3633: .Op Fl pause
                   3634: .Op Fl policy_check
                   3635: .Op Fl prexit
1.11      bluhm    3636: .Op Fl proxy Ar host : Ns Ar port
1.1       jsing    3637: .Op Fl psk Ar key
                   3638: .Op Fl psk_identity Ar identity
                   3639: .Op Fl quiet
                   3640: .Op Fl reconnect
1.5       jsing    3641: .Op Fl servername Ar name
1.1       jsing    3642: .Op Fl showcerts
                   3643: .Op Fl starttls Ar protocol
                   3644: .Op Fl state
                   3645: .Op Fl tls1
1.31      jmc      3646: .Op Fl tls1_1
                   3647: .Op Fl tls1_2
1.1       jsing    3648: .Op Fl tlsextdebug
                   3649: .Op Fl verify Ar depth
                   3650: .Op Fl x509_strict
1.19      landry   3651: .Op Fl xmpphost Ar host
1.1       jsing    3652: .nr nS 0
                   3653: .Pp
                   3654: The
                   3655: .Nm s_client
                   3656: command implements a generic SSL/TLS client which connects
                   3657: to a remote host using SSL/TLS.
1.66      jmc      3658: .Pp
                   3659: If a connection is established with an SSL server, any data received
                   3660: from the server is displayed and any key presses will be sent to the
                   3661: server.
                   3662: When used interactively (which means neither
                   3663: .Fl quiet
                   3664: nor
                   3665: .Fl ign_eof
                   3666: have been given), the session will be renegotiated if the line begins with an
                   3667: .Cm R ;
                   3668: if the line begins with a
                   3669: .Cm Q
                   3670: or if end of file is reached, the connection will be closed down.
1.1       jsing    3671: .Pp
                   3672: The options are as follows:
                   3673: .Bl -tag -width Ds
                   3674: .It Fl 4
1.66      jmc      3675: Attempt connections using IPv4 only.
1.1       jsing    3676: .It Fl 6
1.66      jmc      3677: Attempt connections using IPv6 only.
1.1       jsing    3678: .It Fl bugs
1.66      jmc      3679: Enable various workarounds for buggy implementations.
1.1       jsing    3680: .It Fl CAfile Ar file
                   3681: A
                   3682: .Ar file
                   3683: containing trusted certificates to use during server authentication
                   3684: and to use when attempting to build the client certificate chain.
                   3685: .It Fl CApath Ar directory
                   3686: The
                   3687: .Ar directory
                   3688: to use for server certificate verification.
                   3689: This directory must be in
                   3690: .Qq hash format ;
                   3691: see
                   3692: .Fl verify
                   3693: for more information.
                   3694: These are also used when building the client certificate chain.
                   3695: .It Fl cert Ar file
                   3696: The certificate to use, if one is requested by the server.
                   3697: The default is not to use a certificate.
                   3698: .It Xo
                   3699: .Fl check_ss_sig ,
                   3700: .Fl crl_check ,
                   3701: .Fl crl_check_all ,
                   3702: .Fl extended_crl ,
                   3703: .Fl ignore_critical ,
                   3704: .Fl issuer_checks ,
                   3705: .Fl policy_check ,
                   3706: .Fl x509_strict
                   3707: .Xc
                   3708: Set various certificate chain validation options.
                   3709: See the
1.66      jmc      3710: .Nm verify
1.1       jsing    3711: command for details.
                   3712: .It Fl cipher Ar cipherlist
1.66      jmc      3713: Modify the cipher list sent by the client.
1.1       jsing    3714: Although the server determines which cipher suite is used, it should take
                   3715: the first supported cipher in the list sent by the client.
                   3716: See the
1.66      jmc      3717: .Nm ciphers
                   3718: command for more information.
                   3719: .It Fl connect Ar host Ns Op : Ns Ar port
                   3720: The
1.1       jsing    3721: .Ar host
1.66      jmc      3722: and
1.1       jsing    3723: .Ar port
                   3724: to connect to.
                   3725: If not specified, an attempt is made to connect to the local host
                   3726: on port 4433.
                   3727: Alternatively, the host and port pair may be separated using a forward-slash
1.66      jmc      3728: character,
                   3729: which is useful for numeric IPv6 addresses.
1.1       jsing    3730: .It Fl crlf
1.66      jmc      3731: Translate a line feed from the terminal into CR+LF,
                   3732: as required by some servers.
1.1       jsing    3733: .It Fl debug
1.66      jmc      3734: Print extensive debugging information, including a hex dump of all traffic.
1.1       jsing    3735: .It Fl ign_eof
1.66      jmc      3736: Inhibit shutting down the connection when end of file is reached in the input.
1.1       jsing    3737: .It Fl key Ar keyfile
                   3738: The private key to use.
                   3739: If not specified, the certificate file will be used.
                   3740: .It Fl msg
                   3741: Show all protocol messages with hex dump.
                   3742: .It Fl nbio
1.66      jmc      3743: Turn on non-blocking I/O.
1.1       jsing    3744: .It Fl nbio_test
1.66      jmc      3745: Test non-blocking I/O.
1.31      jmc      3746: .It Fl no_tls1 | no_tls1_1 | no_tls1_2
1.66      jmc      3747: Disable the use of TLS1.0, 1.1, and 1.2, respectively.
1.1       jsing    3748: .It Fl no_ticket
                   3749: Disable RFC 4507 session ticket support.
                   3750: .It Fl pause
1.66      jmc      3751: Pause 1 second between each read and write call.
1.1       jsing    3752: .It Fl prexit
                   3753: Print session information when the program exits.
                   3754: This will always attempt
                   3755: to print out information even if the connection fails.
                   3756: Normally, information will only be printed out once if the connection succeeds.
                   3757: This option is useful because the cipher in use may be renegotiated
                   3758: or the connection may fail because a client certificate is required or is
                   3759: requested only after an attempt is made to access a certain URL.
1.66      jmc      3760: Note that the output produced by this option is not always accurate
                   3761: because a connection might never have been established.
1.11      bluhm    3762: .It Fl proxy Ar host : Ns Ar port
                   3763: Use the HTTP proxy at
                   3764: .Ar host
                   3765: and
                   3766: .Ar port .
                   3767: The connection to the proxy is done in cleartext and the
                   3768: .Fl connect
                   3769: argument is given to the proxy.
                   3770: If not specified, localhost is used as final destination.
                   3771: After that, switch the connection through the proxy to the destination
                   3772: to TLS.
1.1       jsing    3773: .It Fl psk Ar key
                   3774: Use the PSK key
                   3775: .Ar key
                   3776: when using a PSK cipher suite.
                   3777: The key is given as a hexadecimal number without the leading 0x,
                   3778: for example -psk 1a2b3c4d.
                   3779: .It Fl psk_identity Ar identity
1.66      jmc      3780: Use the PSK
1.1       jsing    3781: .Ar identity
                   3782: when using a PSK cipher suite.
                   3783: .It Fl quiet
                   3784: Inhibit printing of session and certificate information.
                   3785: This implicitly turns on
                   3786: .Fl ign_eof
                   3787: as well.
                   3788: .It Fl reconnect
1.66      jmc      3789: Reconnect to the same server 5 times using the same session ID; this can
1.1       jsing    3790: be used as a test that session caching is working.
1.5       jsing    3791: .It Fl servername Ar name
                   3792: Include the TLS Server Name Indication (SNI) extension in the ClientHello
                   3793: message, using the specified server
                   3794: .Ar name .
1.1       jsing    3795: .It Fl showcerts
                   3796: Display the whole server certificate chain: normally only the server
                   3797: certificate itself is displayed.
                   3798: .It Fl starttls Ar protocol
1.66      jmc      3799: Send the protocol-specific messages to switch to TLS for communication.
1.1       jsing    3800: .Ar protocol
                   3801: is a keyword for the intended protocol.
                   3802: Currently, the supported keywords are
                   3803: .Qq ftp ,
                   3804: .Qq imap ,
                   3805: .Qq smtp ,
                   3806: .Qq pop3 ,
                   3807: and
                   3808: .Qq xmpp .
                   3809: .It Fl state
1.66      jmc      3810: Print the SSL session states.
1.31      jmc      3811: .It Fl tls1 | tls1_1 | tls1_2
                   3812: Permit only TLS1.0, 1.1, or 1.2, respectively.
1.1       jsing    3813: .It Fl tlsextdebug
1.66      jmc      3814: Print a hex dump of any TLS extensions received from the server.
1.1       jsing    3815: .It Fl verify Ar depth
1.66      jmc      3816: Turn on server certificate verification,
                   3817: with a maximum length of
                   3818: .Ar depth .
1.1       jsing    3819: Currently the verify operation continues after errors so all the problems
                   3820: with a certificate chain can be seen.
                   3821: As a side effect the connection will never fail due to a server
                   3822: certificate verify failure.
1.19      landry   3823: .It Fl xmpphost Ar hostname
1.66      jmc      3824: When used with
1.19      landry   3825: .Fl starttls Ar xmpp ,
1.66      jmc      3826: specify the host for the "to" attribute of the stream element.
1.19      landry   3827: If this option is not specified then the host specified with
                   3828: .Fl connect
                   3829: will be used.
1.1       jsing    3830: .El
                   3831: .Sh S_SERVER
                   3832: .nr nS 1
                   3833: .Nm "openssl s_server"
                   3834: .Op Fl accept Ar port
                   3835: .Op Fl bugs
                   3836: .Op Fl CAfile Ar file
                   3837: .Op Fl CApath Ar directory
                   3838: .Op Fl cert Ar file
                   3839: .Op Fl cipher Ar cipherlist
                   3840: .Op Fl context Ar id
                   3841: .Op Fl crl_check
                   3842: .Op Fl crl_check_all
                   3843: .Op Fl crlf
                   3844: .Op Fl dcert Ar file
                   3845: .Op Fl debug
                   3846: .Op Fl dhparam Ar file
                   3847: .Op Fl dkey Ar file
                   3848: .Op Fl hack
                   3849: .Op Fl HTTP
                   3850: .Op Fl id_prefix Ar arg
                   3851: .Op Fl key Ar keyfile
                   3852: .Op Fl msg
                   3853: .Op Fl nbio
                   3854: .Op Fl nbio_test
                   3855: .Op Fl no_dhe
                   3856: .Op Fl no_tls1
1.6       guenther 3857: .Op Fl no_tls1_1
                   3858: .Op Fl no_tls1_2
1.1       jsing    3859: .Op Fl no_tmp_rsa
                   3860: .Op Fl nocert
                   3861: .Op Fl psk Ar key
                   3862: .Op Fl psk_hint Ar hint
                   3863: .Op Fl quiet
                   3864: .Op Fl serverpref
                   3865: .Op Fl state
                   3866: .Op Fl tls1
1.31      jmc      3867: .Op Fl tls1_1
                   3868: .Op Fl tls1_2
1.1       jsing    3869: .Op Fl Verify Ar depth
                   3870: .Op Fl verify Ar depth
                   3871: .Op Fl WWW
                   3872: .Op Fl www
                   3873: .nr nS 0
                   3874: .Pp
                   3875: The
                   3876: .Nm s_server
                   3877: command implements a generic SSL/TLS server which listens
                   3878: for connections on a given port using SSL/TLS.
                   3879: .Pp
1.67      jmc      3880: If a connection request is established with a client and neither the
                   3881: .Fl www
                   3882: nor the
                   3883: .Fl WWW
                   3884: option has been used, then any data received
                   3885: from the client is displayed and any key presses are sent to the client.
                   3886: Certain single letter commands perform special operations:
                   3887: .Pp
                   3888: .Bl -tag -width "XXXX" -compact
                   3889: .It Ic P
                   3890: Send plain text, which should cause the client to disconnect.
                   3891: .It Ic Q
                   3892: End the current SSL connection and exit.
                   3893: .It Ic q
                   3894: End the current SSL connection, but still accept new connections.
                   3895: .It Ic R
                   3896: Renegotiate the SSL session and request a client certificate.
                   3897: .It Ic r
                   3898: Renegotiate the SSL session.
                   3899: .It Ic S
                   3900: Print out some session cache status information.
                   3901: .El
                   3902: .Pp
1.1       jsing    3903: The options are as follows:
                   3904: .Bl -tag -width Ds
                   3905: .It Fl accept Ar port
1.67      jmc      3906: Listen on TCP
1.1       jsing    3907: .Ar port
1.67      jmc      3908: for connections.
                   3909: The default is port 4433.
1.1       jsing    3910: .It Fl bugs
1.67      jmc      3911: Enable various workarounds for buggy implementations.
1.1       jsing    3912: .It Fl CAfile Ar file
1.67      jmc      3913: A
                   3914: .Ar file
                   3915: containing trusted certificates to use during client authentication
1.1       jsing    3916: and to use when attempting to build the server certificate chain.
                   3917: The list is also used in the list of acceptable client CAs passed to the
                   3918: client when a certificate is requested.
                   3919: .It Fl CApath Ar directory
                   3920: The
                   3921: .Ar directory
                   3922: to use for client certificate verification.
                   3923: This directory must be in
                   3924: .Qq hash format ;
                   3925: see
                   3926: .Fl verify
                   3927: for more information.
                   3928: These are also used when building the server certificate chain.
                   3929: .It Fl cert Ar file
1.67      jmc      3930: The certificate to use: most server's cipher suites require the use of a
                   3931: certificate and some require a certificate with a certain public key type.
                   3932: For example, the DSS cipher suites require a certificate containing a DSS
                   3933: (DSA) key.
1.1       jsing    3934: If not specified, the file
                   3935: .Pa server.pem
                   3936: will be used.
                   3937: .It Fl cipher Ar cipherlist
1.67      jmc      3938: Modify the cipher list used by the server.
1.1       jsing    3939: This allows the cipher list used by the server to be modified.
                   3940: When the client sends a list of supported ciphers, the first client cipher
                   3941: also included in the server list is used.
                   3942: Because the client specifies the preference order, the order of the server
                   3943: cipherlist is irrelevant.
                   3944: See the
1.67      jmc      3945: .Nm ciphers
                   3946: command for more information.
1.1       jsing    3947: .It Fl context Ar id
1.67      jmc      3948: Set the SSL context ID.
1.1       jsing    3949: It can be given any string value.
                   3950: .It Fl crl_check , crl_check_all
                   3951: Check the peer certificate has not been revoked by its CA.
                   3952: The CRLs are appended to the certificate file.
                   3953: .Fl crl_check_all
1.67      jmc      3954: checks all CRLs of all CAs in the chain.
1.1       jsing    3955: .It Fl crlf
1.67      jmc      3956: Translate a line feed from the terminal into CR+LF.
1.1       jsing    3957: .It Fl dcert Ar file , Fl dkey Ar file
                   3958: Specify an additional certificate and private key; these behave in the
                   3959: same manner as the
                   3960: .Fl cert
                   3961: and
                   3962: .Fl key
                   3963: options except there is no default if they are not specified
1.67      jmc      3964: (no additional certificate or key is used).
1.1       jsing    3965: By using RSA and DSS certificates and keys,
                   3966: a server can support clients which only support RSA or DSS cipher suites
                   3967: by using an appropriate certificate.
                   3968: .It Fl debug
1.67      jmc      3969: Print extensive debugging information, including a hex dump of all traffic.
1.1       jsing    3970: .It Fl dhparam Ar file
                   3971: The DH parameter file to use.
                   3972: The ephemeral DH cipher suites generate keys
                   3973: using a set of DH parameters.
                   3974: If not specified, an attempt is made to
                   3975: load the parameters from the server certificate file.
                   3976: If this fails, a static set of parameters hard coded into the
                   3977: .Nm s_server
                   3978: program will be used.
                   3979: .It Fl hack
1.67      jmc      3980: Enables a further workaround for some early Netscape SSL code.
1.1       jsing    3981: .It Fl HTTP
1.67      jmc      3982: Emulate a simple web server.
                   3983: Pages are resolved relative to the current directory.
                   3984: For example if the URL
1.1       jsing    3985: .Pa https://myhost/page.html
                   3986: is requested, the file
                   3987: .Pa ./page.html
                   3988: will be loaded.
                   3989: The files loaded are assumed to contain a complete and correct HTTP
                   3990: response (lines that are part of the HTTP response line and headers
                   3991: must end with CRLF).
                   3992: .It Fl id_prefix Ar arg
                   3993: Generate SSL/TLS session IDs prefixed by
                   3994: .Ar arg .
                   3995: This is mostly useful for testing any SSL/TLS code
1.67      jmc      3996: (e.g. proxies)
1.1       jsing    3997: that wish to deal with multiple servers, when each of which might be
                   3998: generating a unique range of session IDs
1.67      jmc      3999: (e.g. with a certain prefix).
1.1       jsing    4000: .It Fl key Ar keyfile
                   4001: The private key to use.
                   4002: If not specified, the certificate file will be used.
                   4003: .It Fl msg
                   4004: Show all protocol messages with hex dump.
                   4005: .It Fl nbio
1.67      jmc      4006: Turn on non-blocking I/O.
1.1       jsing    4007: .It Fl nbio_test
1.67      jmc      4008: Test non-blocking I/O.
1.1       jsing    4009: .It Fl no_dhe
1.67      jmc      4010: Disable ephemeral DH cipher suites.
1.31      jmc      4011: .It Fl no_tls1 | no_tls1_1 | no_tls1_2
1.67      jmc      4012: Disable the use of TLS1.0, 1.1, and 1.2, respectively.
1.1       jsing    4013: .It Fl no_tmp_rsa
1.67      jmc      4014: Disable temporary RSA key generation.
1.1       jsing    4015: .It Fl nocert
1.67      jmc      4016: Do not use a certificate.
1.1       jsing    4017: This restricts the cipher suites available to the anonymous ones
1.67      jmc      4018: (currently just anonymous DH).
1.1       jsing    4019: .It Fl psk Ar key
                   4020: Use the PSK key
                   4021: .Ar key
                   4022: when using a PSK cipher suite.
                   4023: The key is given as a hexadecimal number without the leading 0x,
                   4024: for example -psk 1a2b3c4d.
                   4025: .It Fl psk_hint Ar hint
                   4026: Use the PSK identity hint
                   4027: .Ar hint
                   4028: when using a PSK cipher suite.
                   4029: .It Fl quiet
                   4030: Inhibit printing of session and certificate information.
                   4031: .It Fl serverpref
                   4032: Use server's cipher preferences.
                   4033: .It Fl state
1.67      jmc      4034: Print the SSL session states.
1.31      jmc      4035: .It Fl tls1 | tls1_1 | tls1_2
                   4036: Permit only TLS1.0, 1.1, or 1.2, respectively.
1.1       jsing    4037: .It Fl WWW
1.67      jmc      4038: Emulate a simple web server.
                   4039: Pages are resolved relative to the current directory.
                   4040: For example if the URL
1.1       jsing    4041: .Pa https://myhost/page.html
                   4042: is requested, the file
                   4043: .Pa ./page.html
                   4044: will be loaded.
                   4045: .It Fl www
1.67      jmc      4046: Send a status message to the client when it connects,
                   4047: including information about the ciphers used and various session parameters.
1.1       jsing    4048: The output is in HTML format so this option will normally be used with a
                   4049: web browser.
                   4050: .It Fl Verify Ar depth , Fl verify Ar depth
1.67      jmc      4051: Request a certificate chain from the client,
                   4052: with a maximum length of
                   4053: .Ar depth .
                   4054: With
                   4055: .Fl Verify ,
                   4056: the client must supply a certificate or an error occurs;
                   4057: with
                   4058: .Fl verify ,
                   4059: a certificate is requested but the client does not have to send one.
1.1       jsing    4060: .El
                   4061: .Sh S_TIME
                   4062: .nr nS 1
                   4063: .Nm "openssl s_time"
                   4064: .Op Fl bugs
                   4065: .Op Fl CAfile Ar file
                   4066: .Op Fl CApath Ar directory
                   4067: .Op Fl cert Ar file
                   4068: .Op Fl cipher Ar cipherlist
1.68      jmc      4069: .Op Fl connect Ar host Ns Op : Ns Ar port
1.1       jsing    4070: .Op Fl key Ar keyfile
                   4071: .Op Fl nbio
                   4072: .Op Fl new
1.20      lteo     4073: .Op Fl no_shutdown
1.1       jsing    4074: .Op Fl reuse
                   4075: .Op Fl time Ar seconds
                   4076: .Op Fl verify Ar depth
                   4077: .Op Fl www Ar page
                   4078: .nr nS 0
                   4079: .Pp
                   4080: The
1.68      jmc      4081: .Nm s_time
1.1       jsing    4082: command implements a generic SSL/TLS client which connects to a
                   4083: remote host using SSL/TLS.
                   4084: It can request a page from the server and includes
                   4085: the time to transfer the payload data in its timing measurements.
                   4086: It measures the number of connections within a given timeframe,
                   4087: the amount of data transferred
                   4088: .Pq if any ,
                   4089: and calculates the average time spent for one connection.
                   4090: .Pp
                   4091: The options are as follows:
                   4092: .Bl -tag -width Ds
                   4093: .It Fl bugs
1.68      jmc      4094: Enable various workarounds for buggy implementations.
1.1       jsing    4095: .It Fl CAfile Ar file
1.68      jmc      4096: A
                   4097: .Ar file
                   4098: containing trusted certificates to use during server authentication
1.1       jsing    4099: and to use when attempting to build the client certificate chain.
                   4100: .It Fl CApath Ar directory
                   4101: The directory to use for server certificate verification.
                   4102: This directory must be in
                   4103: .Qq hash format ;
                   4104: see
                   4105: .Nm verify
                   4106: for more information.
                   4107: These are also used when building the client certificate chain.
                   4108: .It Fl cert Ar file
                   4109: The certificate to use, if one is requested by the server.
                   4110: The default is not to use a certificate.
                   4111: .It Fl cipher Ar cipherlist
1.68      jmc      4112: Modify the cipher list sent by the client.
1.1       jsing    4113: Although the server determines which cipher suite is used,
                   4114: it should take the first supported cipher in the list sent by the client.
                   4115: See the
                   4116: .Nm ciphers
                   4117: command for more information.
1.68      jmc      4118: .It Fl connect Ar host Ns Op : Ns Ar port
                   4119: The host and port to connect to.
1.1       jsing    4120: .It Fl key Ar keyfile
                   4121: The private key to use.
                   4122: If not specified, the certificate file will be used.
                   4123: .It Fl nbio
1.68      jmc      4124: Turn on non-blocking I/O.
1.1       jsing    4125: .It Fl new
1.68      jmc      4126: Perform the timing test using a new session ID for each connection.
1.1       jsing    4127: If neither
                   4128: .Fl new
                   4129: nor
                   4130: .Fl reuse
                   4131: are specified,
                   4132: they are both on by default and executed in sequence.
1.20      lteo     4133: .It Fl no_shutdown
1.21      jmc      4134: Shut down the connection without sending a
1.68      jmc      4135: .Qq close notify
1.20      lteo     4136: shutdown alert to the server.
1.1       jsing    4137: .It Fl reuse
1.68      jmc      4138: Perform the timing test using the same session ID for each connection.
1.1       jsing    4139: If neither
                   4140: .Fl new
                   4141: nor
                   4142: .Fl reuse
                   4143: are specified,
                   4144: they are both on by default and executed in sequence.
                   4145: .It Fl time Ar seconds
1.68      jmc      4146: Limit
1.1       jsing    4147: .Nm s_time
1.68      jmc      4148: benchmarks to the number of
                   4149: .Ar seconds .
1.1       jsing    4150: The default is 30 seconds.
                   4151: .It Fl verify Ar depth
1.68      jmc      4152: Turn on server certificate verification,
                   4153: with a maximum length of
                   4154: .Ar depth .
1.1       jsing    4155: Currently the verify operation continues after errors, so all the problems
                   4156: with a certificate chain can be seen.
                   4157: As a side effect,
                   4158: the connection will never fail due to a server certificate verify failure.
                   4159: .It Fl www Ar page
1.68      jmc      4160: The page to GET from the server.
1.1       jsing    4161: A value of
                   4162: .Sq /
                   4163: gets the index.htm[l] page.
                   4164: If this parameter is not specified,
                   4165: .Nm s_time
                   4166: will only perform the handshake to establish SSL connections
                   4167: but not transfer any payload data.
                   4168: .El
                   4169: .Sh SESS_ID
                   4170: .nr nS 1
                   4171: .Nm "openssl sess_id"
                   4172: .Op Fl cert
                   4173: .Op Fl context Ar ID
                   4174: .Op Fl in Ar file
1.69      jmc      4175: .Op Fl inform Cm der | pem
1.1       jsing    4176: .Op Fl noout
                   4177: .Op Fl out Ar file
1.69      jmc      4178: .Op Fl outform Cm der | pem
1.1       jsing    4179: .Op Fl text
                   4180: .nr nS 0
                   4181: .Pp
                   4182: The
                   4183: .Nm sess_id
                   4184: program processes the encoded version of the SSL session structure and
                   4185: optionally prints out SSL session details
1.69      jmc      4186: (for example the SSL session master key)
1.72      jmc      4187: in human-readable format.
1.1       jsing    4188: .Pp
                   4189: The options are as follows:
                   4190: .Bl -tag -width Ds
                   4191: .It Fl cert
                   4192: If a certificate is present in the session,
                   4193: it will be output using this option;
                   4194: if the
                   4195: .Fl text
                   4196: option is also present, then it will be printed out in text form.
                   4197: .It Fl context Ar ID
1.69      jmc      4198: Set the session
1.1       jsing    4199: .Ar ID .
1.69      jmc      4200: The ID can be any string of characters.
1.1       jsing    4201: .It Fl in Ar file
1.69      jmc      4202: The input file to read from,
                   4203: or standard input if not specified.
                   4204: .It Fl inform Cm der | pem
                   4205: The input format.
                   4206: .Cm der
                   4207: uses an ASN1 DER-encoded format containing session details.
1.1       jsing    4208: The precise format can vary from one version to the next.
1.69      jmc      4209: .Cm pem
                   4210: is the default format: it consists of the DER
1.1       jsing    4211: format base64-encoded with additional header and footer lines.
                   4212: .It Fl noout
1.69      jmc      4213: Do not output the encoded version of the session.
1.1       jsing    4214: .It Fl out Ar file
1.69      jmc      4215: The output file to write to,
                   4216: or standard output if not specified.
                   4217: .It Fl outform Cm der | pem
                   4218: The output format.
1.1       jsing    4219: .It Fl text
1.69      jmc      4220: Print the various public or private key components in plain text,
                   4221: in addition to the encoded version.
1.1       jsing    4222: .El
                   4223: .Pp
1.69      jmc      4224: The output of
                   4225: .Nm sess_id
                   4226: is composed as follows:
1.1       jsing    4227: .Pp
1.69      jmc      4228: .Bl -tag -width "Verify return code " -offset 3n -compact
                   4229: .It Protocol
                   4230: The protocol in use.
                   4231: .It Cipher
                   4232: The actual raw SSL or TLS cipher code.
                   4233: .It Session-ID
                   4234: The SSL session ID, in hex format.
                   4235: .It Session-ID-ctx
                   4236: The session ID context, in hex format.
                   4237: .It Master-Key
                   4238: The SSL session master key.
                   4239: .It Key-Arg
1.1       jsing    4240: The key argument; this is only used in SSL v2.
1.69      jmc      4241: .It Start Time
                   4242: The session start time.
1.1       jsing    4243: .Ux
                   4244: format.
1.69      jmc      4245: .It Timeout
                   4246: The timeout, in seconds.
                   4247: .It Verify return code
                   4248: The return code when a certificate is verified.
1.1       jsing    4249: .El
                   4250: .Pp
                   4251: Since the SSL session output contains the master key, it is possible to read
                   4252: the contents of an encrypted session using this information.
                   4253: Therefore appropriate security precautions
                   4254: should be taken if the information is being output by a
                   4255: .Qq real
                   4256: application.
                   4257: This is, however, strongly discouraged and should only be used for
                   4258: debugging purposes.
                   4259: .Sh SMIME
                   4260: .nr nS 1
                   4261: .Nm "openssl smime"
                   4262: .Oo
                   4263: .Fl aes128 | aes192 | aes256 | des |
                   4264: .Fl des3 | rc2-40 | rc2-64 | rc2-128
                   4265: .Oc
                   4266: .Op Fl binary
                   4267: .Op Fl CAfile Ar file
                   4268: .Op Fl CApath Ar directory
                   4269: .Op Fl certfile Ar file
                   4270: .Op Fl check_ss_sig
                   4271: .Op Fl content Ar file
                   4272: .Op Fl crl_check
                   4273: .Op Fl crl_check_all
                   4274: .Op Fl decrypt
                   4275: .Op Fl encrypt
                   4276: .Op Fl extended_crl
                   4277: .Op Fl from Ar addr
                   4278: .Op Fl ignore_critical
                   4279: .Op Fl in Ar file
                   4280: .Op Fl indef
1.70      jmc      4281: .Op Fl inform Cm der | pem | smime
1.1       jsing    4282: .Op Fl inkey Ar file
                   4283: .Op Fl issuer_checks
1.70      jmc      4284: .Op Fl keyform Cm pem
1.1       jsing    4285: .Op Fl md Ar digest
                   4286: .Op Fl noattr
                   4287: .Op Fl nocerts
                   4288: .Op Fl nochain
                   4289: .Op Fl nodetach
                   4290: .Op Fl noindef
                   4291: .Op Fl nointern
                   4292: .Op Fl nosigs
                   4293: .Op Fl noverify
                   4294: .Op Fl out Ar file
1.70      jmc      4295: .Op Fl outform Cm der | pem | smime
1.1       jsing    4296: .Op Fl passin Ar arg
                   4297: .Op Fl pk7out
                   4298: .Op Fl policy_check
                   4299: .Op Fl recip Ar file
                   4300: .Op Fl resign
                   4301: .Op Fl sign
                   4302: .Op Fl signer Ar file
                   4303: .Op Fl stream
                   4304: .Op Fl subject Ar s
                   4305: .Op Fl text
                   4306: .Op Fl to Ar addr
                   4307: .Op Fl verify
                   4308: .Op Fl x509_strict
                   4309: .Op Ar cert.pem ...
                   4310: .nr nS 0
                   4311: .Pp
                   4312: The
                   4313: .Nm smime
1.70      jmc      4314: command handles S/MIME mail.
                   4315: It can encrypt, decrypt, sign, and verify S/MIME messages.
                   4316: .Pp
                   4317: The MIME message must be sent without any blank lines between the
                   4318: headers and the output.
                   4319: Some mail programs will automatically add a blank line.
                   4320: Piping the mail directly to an MTA is one way to
                   4321: achieve the correct format.
                   4322: .Pp
                   4323: The supplied message to be signed or encrypted must include the necessary
                   4324: MIME headers or many S/MIME clients won't display it properly (if at all).
                   4325: Use the
                   4326: .Fl text
                   4327: option to automatically add plain text headers.
1.1       jsing    4328: .Pp
1.70      jmc      4329: A
                   4330: .Qq signed and encrypted
                   4331: message is one where a signed message is then encrypted.
                   4332: This can be produced by encrypting an already signed message.
1.1       jsing    4333: .Pp
1.70      jmc      4334: There are a number of operations that can be performed, as follows:
1.1       jsing    4335: .Bl -tag -width "XXXX"
                   4336: .It Fl decrypt
                   4337: Decrypt mail using the supplied certificate and private key.
1.70      jmc      4338: The input file is an encrypted mail message in MIME format.
1.1       jsing    4339: The decrypted mail is written to the output file.
                   4340: .It Fl encrypt
                   4341: Encrypt mail for the given recipient certificates.
1.70      jmc      4342: The input is the message to be encrypted.
                   4343: The output file is the encrypted mail, in MIME format.
1.1       jsing    4344: .It Fl pk7out
1.70      jmc      4345: Take an input message and write out a PEM-encoded PKCS#7 structure.
1.1       jsing    4346: .It Fl resign
                   4347: Resign a message: take an existing message and one or more new signers.
                   4348: .It Fl sign
                   4349: Sign mail using the supplied certificate and private key.
1.70      jmc      4350: The input file is the message to be signed.
                   4351: The signed message, in MIME format, is written to the output file.
1.1       jsing    4352: .It Fl verify
                   4353: Verify signed mail.
1.70      jmc      4354: The input is a signed mail message and the output is the signed data.
1.1       jsing    4355: Both clear text and opaque signing is supported.
                   4356: .El
                   4357: .Pp
1.14      jmc      4358: The remaining options are as follows:
1.1       jsing    4359: .Bl -tag -width "XXXX"
                   4360: .It Xo
                   4361: .Fl aes128 | aes192 | aes256 | des |
                   4362: .Fl des3 | rc2-40 | rc2-64 | rc2-128
                   4363: .Xc
                   4364: The encryption algorithm to use.
1.70      jmc      4365: 128-, 192-, or 256-bit AES, DES (56 bits), triple DES (168 bits),
1.1       jsing    4366: or 40-, 64-, or 128-bit RC2, respectively;
                   4367: if not specified, 40-bit RC2 is
                   4368: used.
                   4369: Only used with
                   4370: .Fl encrypt .
                   4371: .It Fl binary
                   4372: Normally, the input message is converted to
                   4373: .Qq canonical
1.70      jmc      4374: format which uses CR/LF as end of line,
                   4375: as required by the S/MIME specification.
1.1       jsing    4376: When this option is present no translation occurs.
1.70      jmc      4377: This is useful when handling binary data which may not be in MIME format.
1.1       jsing    4378: .It Fl CAfile Ar file
                   4379: A
                   4380: .Ar file
                   4381: containing trusted CA certificates; only used with
                   4382: .Fl verify .
                   4383: .It Fl CApath Ar directory
                   4384: A
                   4385: .Ar directory
                   4386: containing trusted CA certificates; only used with
                   4387: .Fl verify .
                   4388: This directory must be a standard certificate directory:
                   4389: that is, a hash of each subject name (using
                   4390: .Nm x509 -hash )
                   4391: should be linked to each certificate.
                   4392: .It Ar cert.pem ...
                   4393: One or more certificates of message recipients: used when encrypting
                   4394: a message.
                   4395: .It Fl certfile Ar file
                   4396: Allows additional certificates to be specified.
                   4397: When signing, these will be included with the message.
                   4398: When verifying, these will be searched for the signers' certificates.
                   4399: The certificates should be in PEM format.
                   4400: .It Xo
                   4401: .Fl check_ss_sig ,
                   4402: .Fl crl_check ,
                   4403: .Fl crl_check_all ,
                   4404: .Fl extended_crl ,
                   4405: .Fl ignore_critical ,
                   4406: .Fl issuer_checks ,
                   4407: .Fl policy_check ,
                   4408: .Fl x509_strict
                   4409: .Xc
                   4410: Set various certificate chain validation options.
                   4411: See the
1.70      jmc      4412: .Nm verify
1.1       jsing    4413: command for details.
                   4414: .It Fl content Ar file
1.70      jmc      4415: A file containing the detached content.
1.1       jsing    4416: This is only useful with the
                   4417: .Fl verify
1.70      jmc      4418: option,
                   4419: and only usable if the PKCS#7 structure is using the detached
1.1       jsing    4420: signature form where the content is not included.
1.70      jmc      4421: This option will override any content if the input format is S/MIME
                   4422: and it uses the multipart/signed MIME content type.
1.1       jsing    4423: .It Xo
                   4424: .Fl from Ar addr ,
                   4425: .Fl subject Ar s ,
                   4426: .Fl to Ar addr
                   4427: .Xc
                   4428: The relevant mail headers.
                   4429: These are included outside the signed
                   4430: portion of a message so they may be included manually.
1.70      jmc      4431: When signing, many S/MIME
1.1       jsing    4432: mail clients check that the signer's certificate email
                   4433: address matches the From: address.
                   4434: .It Fl in Ar file
1.70      jmc      4435: The input file to read from.
1.1       jsing    4436: .It Fl indef
                   4437: Enable streaming I/O for encoding operations.
                   4438: This permits single pass processing of data without
                   4439: the need to hold the entire contents in memory,
                   4440: potentially supporting very large files.
                   4441: Streaming is automatically set for S/MIME signing with detached
                   4442: data if the output format is SMIME;
                   4443: it is currently off by default for all other operations.
1.70      jmc      4444: .It Fl inform Cm der | pem | smime
                   4445: The input format.
1.1       jsing    4446: .It Fl inkey Ar file
1.70      jmc      4447: The private key to use when signing or decrypting,
                   4448: which must match the corresponding certificate.
1.1       jsing    4449: If this option is not specified, the private key must be included
                   4450: in the certificate file specified with
                   4451: the
                   4452: .Fl recip
                   4453: or
                   4454: .Fl signer
                   4455: file.
                   4456: When signing,
                   4457: this option can be used multiple times to specify successive keys.
1.70      jmc      4458: .It Fl keyform Cm pem
1.1       jsing    4459: Input private key format.
                   4460: .It Fl md Ar digest
                   4461: The digest algorithm to use when signing or resigning.
                   4462: If not present then the default digest algorithm for the signing key is used
                   4463: (usually SHA1).
                   4464: .It Fl noattr
1.70      jmc      4465: Do not include attributes.
1.1       jsing    4466: .It Fl nocerts
1.70      jmc      4467: Do not include the signer's certificate.
1.1       jsing    4468: This will reduce the size of the signed message but the verifier must
                   4469: have a copy of the signer's certificate available locally (passed using the
                   4470: .Fl certfile
                   4471: option, for example).
                   4472: .It Fl nochain
                   4473: Do not do chain verification of signers' certificates: that is,
                   4474: don't use the certificates in the signed message as untrusted CAs.
                   4475: .It Fl nodetach
                   4476: When signing a message use opaque signing: this form is more resistant
                   4477: to translation by mail relays but it cannot be read by mail agents that
1.70      jmc      4478: do not support S/MIME.
                   4479: Without this option cleartext signing with the MIME type
                   4480: multipart/signed is used.
1.1       jsing    4481: .It Fl noindef
1.70      jmc      4482: Disable streaming I/O where it would produce an encoding of indefinite length
                   4483: (currently has no effect).
1.1       jsing    4484: .It Fl nointern
1.70      jmc      4485: Only use certificates specified in the
                   4486: .Fl certfile .
                   4487: The supplied certificates can still be used as untrusted CAs.
1.1       jsing    4488: .It Fl nosigs
1.70      jmc      4489: Do not try to verify the signatures on the message.
1.1       jsing    4490: .It Fl noverify
                   4491: Do not verify the signer's certificate of a signed message.
                   4492: .It Fl out Ar file
1.70      jmc      4493: The output file to write to.
                   4494: .It Fl outform Cm der | pem | smime
                   4495: The output format.
                   4496: The default is smime, which writes an S/MIME format message.
                   4497: .Cm pem
1.1       jsing    4498: and
1.70      jmc      4499: .Cm der
                   4500: change this to write PEM and DER format PKCS#7 structures instead.
1.1       jsing    4501: This currently only affects the output format of the PKCS#7
                   4502: structure; if no PKCS#7 structure is being output (for example with
                   4503: .Fl verify
                   4504: or
                   4505: .Fl decrypt )
                   4506: this option has no effect.
                   4507: .It Fl passin Ar arg
                   4508: The key password source.
                   4509: .It Fl recip Ar file
                   4510: The recipients certificate when decrypting a message.
                   4511: This certificate
                   4512: must match one of the recipients of the message or an error occurs.
                   4513: .It Fl signer Ar file
                   4514: A signing certificate when signing or resigning a message;
                   4515: this option can be used multiple times if more than one signer is required.
                   4516: If a message is being verified, the signer's certificates will be
                   4517: written to this file if the verification was successful.
                   4518: .It Fl stream
                   4519: The same as
                   4520: .Fl indef .
                   4521: .It Fl text
1.70      jmc      4522: Add plain text (text/plain) MIME
1.1       jsing    4523: headers to the supplied message if encrypting or signing.
                   4524: If decrypting or verifying, it strips off text headers:
1.70      jmc      4525: if the decrypted or verified message is not of MIME type text/plain
                   4526: then an error occurs.
1.1       jsing    4527: .El
                   4528: .Pp
1.70      jmc      4529: The exit codes for
                   4530: .Nm smime
                   4531: are as follows:
1.1       jsing    4532: .Pp
1.70      jmc      4533: .Bl -tag -width "XXXX"  -offset 3n -compact
                   4534: .It 0
1.1       jsing    4535: The operation was completely successful.
1.70      jmc      4536: .It 1
1.1       jsing    4537: An error occurred parsing the command options.
1.70      jmc      4538: .It 2
1.1       jsing    4539: One of the input files could not be read.
1.70      jmc      4540: .It 3
                   4541: An error occurred creating the file or when reading the message.
                   4542: .It 4
1.1       jsing    4543: An error occurred decrypting or verifying the message.
1.70      jmc      4544: .It 5
                   4545: An error occurred writing certificates.
1.1       jsing    4546: .El
                   4547: .Sh SPEED
                   4548: .nr nS 1
                   4549: .Nm "openssl speed"
1.71      jmc      4550: .Op Ar algorithm
1.1       jsing    4551: .Op Fl decrypt
                   4552: .Op Fl elapsed
1.71      jmc      4553: .Op Fl evp Ar algorithm
1.1       jsing    4554: .Op Fl mr
                   4555: .Op Fl multi Ar number
                   4556: .nr nS 0
                   4557: .Pp
                   4558: The
                   4559: .Nm speed
                   4560: command is used to test the performance of cryptographic algorithms.
                   4561: .Bl -tag -width "XXXX"
1.71      jmc      4562: .It Ar algorithm
                   4563: Perform the test using
                   4564: .Ar algorithm .
                   4565: The default is to test all algorithms.
1.1       jsing    4566: .It Fl decrypt
1.71      jmc      4567: Time decryption instead of encryption;
                   4568: must be used with
                   4569: .Fl evp .
1.1       jsing    4570: .It Fl elapsed
                   4571: Measure time in real time instead of CPU user time.
1.71      jmc      4572: .It Fl evp Ar algorithm
                   4573: Perform the test using one of the algorithms accepted by
                   4574: .Xr EVP_get_cipherbyname 3 .
1.1       jsing    4575: .It Fl mr
                   4576: Produce machine readable output.
                   4577: .It Fl multi Ar number
                   4578: Run
                   4579: .Ar number
                   4580: benchmarks in parallel.
                   4581: .El
1.77      jmc      4582: .Sh SPKAC
                   4583: .nr nS 1
                   4584: .Nm "openssl spkac"
                   4585: .Op Fl challenge Ar string
                   4586: .Op Fl in Ar file
                   4587: .Op Fl key Ar keyfile
                   4588: .Op Fl noout
                   4589: .Op Fl out Ar file
                   4590: .Op Fl passin Ar arg
                   4591: .Op Fl pubkey
                   4592: .Op Fl spkac Ar spkacname
                   4593: .Op Fl spksect Ar section
                   4594: .Op Fl verify
                   4595: .nr nS 0
                   4596: .Pp
                   4597: The
                   4598: .Nm spkac
                   4599: command processes signed public key and challenge (SPKAC) files.
                   4600: It can print out their contents, verify the signature,
                   4601: and produce its own SPKACs from a supplied private key.
                   4602: .Pp
                   4603: The options are as follows:
                   4604: .Bl -tag -width Ds
                   4605: .It Fl challenge Ar string
                   4606: The challenge string, if an SPKAC is being created.
                   4607: .It Fl in Ar file
                   4608: The input file to read from,
                   4609: or standard input if not specified.
                   4610: Ignored if the
                   4611: .Fl key
                   4612: option is used.
                   4613: .It Fl key Ar keyfile
                   4614: Create an SPKAC file using the private key in
                   4615: .Ar keyfile .
                   4616: The
                   4617: .Fl in , noout , spksect ,
                   4618: and
                   4619: .Fl verify
                   4620: options are ignored, if present.
                   4621: .It Fl noout
                   4622: Do not output the text version of the SPKAC.
                   4623: .It Fl out Ar file
                   4624: The output file to write to,
                   4625: or standard output if not specified.
                   4626: .It Fl passin Ar arg
                   4627: The key password source.
                   4628: .It Fl pubkey
                   4629: Output the public key of an SPKAC.
                   4630: .It Fl spkac Ar spkacname
                   4631: An alternative name for the variable containing the SPKAC.
                   4632: The default is "SPKAC".
                   4633: This option affects both generated and input SPKAC files.
                   4634: .It Fl spksect Ar section
                   4635: An alternative name for the
                   4636: .Ar section
                   4637: containing the SPKAC.
                   4638: .It Fl verify
                   4639: Verify the digital signature on the supplied SPKAC.
                   4640: .El
1.1       jsing    4641: .Sh TS
                   4642: .nr nS 1
                   4643: .Nm "openssl ts"
                   4644: .Fl query
1.29      bcook    4645: .Op Fl md4 | md5 | ripemd160 | sha1
1.1       jsing    4646: .Op Fl cert
                   4647: .Op Fl config Ar configfile
                   4648: .Op Fl data Ar file_to_hash
                   4649: .Op Fl digest Ar digest_bytes
                   4650: .Op Fl in Ar request.tsq
                   4651: .Op Fl no_nonce
                   4652: .Op Fl out Ar request.tsq
                   4653: .Op Fl policy Ar object_id
                   4654: .Op Fl text
                   4655: .nr nS 0
                   4656: .Pp
                   4657: .nr nS 1
                   4658: .Nm "openssl ts"
                   4659: .Fl reply
                   4660: .Op Fl chain Ar certs_file.pem
                   4661: .Op Fl config Ar configfile
                   4662: .Op Fl in Ar response.tsr
                   4663: .Op Fl inkey Ar private.pem
                   4664: .Op Fl out Ar response.tsr
                   4665: .Op Fl passin Ar arg
                   4666: .Op Fl policy Ar object_id
                   4667: .Op Fl queryfile Ar request.tsq
                   4668: .Op Fl section Ar tsa_section
                   4669: .Op Fl signer Ar tsa_cert.pem
                   4670: .Op Fl text
                   4671: .Op Fl token_in
                   4672: .Op Fl token_out
                   4673: .nr nS 0
                   4674: .Pp
                   4675: .nr nS 1
                   4676: .Nm "openssl ts"
                   4677: .Fl verify
                   4678: .Op Fl CAfile Ar trusted_certs.pem
                   4679: .Op Fl CApath Ar trusted_cert_path
                   4680: .Op Fl data Ar file_to_hash
                   4681: .Op Fl digest Ar digest_bytes
                   4682: .Op Fl in Ar response.tsr
                   4683: .Op Fl queryfile Ar request.tsq
                   4684: .Op Fl token_in
                   4685: .Op Fl untrusted Ar cert_file.pem
                   4686: .nr nS 0
                   4687: .Pp
                   4688: The
                   4689: .Nm ts
                   4690: command is a basic Time Stamping Authority (TSA) client and server
                   4691: application as specified in RFC 3161 (Time-Stamp Protocol, TSP).
                   4692: A TSA can be part of a PKI deployment and its role is to provide long
1.72      jmc      4693: term proof of the existence of specific data.
1.1       jsing    4694: Here is a brief description of the protocol:
                   4695: .Bl -enum
                   4696: .It
                   4697: The TSA client computes a one-way hash value for a data file and sends
                   4698: the hash to the TSA.
                   4699: .It
                   4700: The TSA attaches the current date and time to the received hash value,
                   4701: signs them and sends the time stamp token back to the client.
                   4702: By creating this token the TSA certifies the existence of the original
                   4703: data file at the time of response generation.
                   4704: .It
                   4705: The TSA client receives the time stamp token and verifies the
                   4706: signature on it.
                   4707: It also checks if the token contains the same hash
                   4708: value that it had sent to the TSA.
                   4709: .El
                   4710: .Pp
                   4711: There is one DER-encoded protocol data unit defined for transporting a time
                   4712: stamp request to the TSA and one for sending the time stamp response
                   4713: back to the client.
                   4714: The
                   4715: .Nm ts
                   4716: command has three main functions:
                   4717: creating a time stamp request based on a data file;
                   4718: creating a time stamp response based on a request;
                   4719: and verifying if a response corresponds
                   4720: to a particular request or a data file.
                   4721: .Pp
                   4722: There is no support for sending the requests/responses automatically
                   4723: over HTTP or TCP yet as suggested in RFC 3161.
                   4724: Users must send the requests either by FTP or email.
                   4725: .Pp
                   4726: The
                   4727: .Fl query
                   4728: switch can be used for creating and printing a time stamp
                   4729: request with the following options:
                   4730: .Bl -tag -width Ds
                   4731: .It Fl cert
1.72      jmc      4732: Expect the TSA to include its signing certificate in the response.
1.1       jsing    4733: .It Fl config Ar configfile
1.72      jmc      4734: Specify an alternative configuration file.
                   4735: Only the OID section is used.
1.1       jsing    4736: .It Fl data Ar file_to_hash
                   4737: The data file for which the time stamp request needs to be created.
1.72      jmc      4738: The default is standard input.
1.1       jsing    4739: .It Fl digest Ar digest_bytes
1.72      jmc      4740: Specify the message imprint explicitly without the data file.
1.1       jsing    4741: The imprint must be specified in a hexadecimal format,
                   4742: two characters per byte,
1.72      jmc      4743: the bytes optionally separated by colons.
1.1       jsing    4744: The number of bytes must match the message digest algorithm in use.
                   4745: .It Fl in Ar request.tsq
1.72      jmc      4746: A previously created time stamp request in DER
1.1       jsing    4747: format that will be printed into the output file.
1.72      jmc      4748: Useful for examining the content of a request in human-readable format.
1.76      jmc      4749: .It Fl md4 | md5 | ripemd160 | sha | sha1
1.1       jsing    4750: The message digest to apply to the data file.
                   4751: It supports all the message digest algorithms that are supported by the
                   4752: .Nm dgst
                   4753: command.
                   4754: The default is SHA-1.
                   4755: .It Fl no_nonce
1.72      jmc      4756: Specify no nonce in the request.
                   4757: The default, to include a 64-bit long pseudo-random nonce,
                   4758: is recommended to protect against replay attacks.
1.1       jsing    4759: .It Fl out Ar request.tsq
1.72      jmc      4760: The output file to write to,
                   4761: or standard output if not specified.
1.1       jsing    4762: .It Fl policy Ar object_id
                   4763: The policy that the client expects the TSA to use for creating the
                   4764: time stamp token.
1.72      jmc      4765: Either dotted OID notation or OID names defined
1.1       jsing    4766: in the config file can be used.
1.72      jmc      4767: If no policy is requested the TSA uses its own default policy.
1.1       jsing    4768: .It Fl text
1.72      jmc      4769: Output in human-readable text format instead of DER.
1.1       jsing    4770: .El
                   4771: .Pp
                   4772: A time stamp response (TimeStampResp) consists of a response status
                   4773: and the time stamp token itself (ContentInfo),
                   4774: if the token generation was successful.
                   4775: The
                   4776: .Fl reply
                   4777: command is for creating a time stamp
                   4778: response or time stamp token based on a request and printing the
                   4779: response/token in human-readable format.
                   4780: If
                   4781: .Fl token_out
                   4782: is not specified the output is always a time stamp response (TimeStampResp),
                   4783: otherwise it is a time stamp token (ContentInfo).
                   4784: .Bl -tag -width Ds
                   4785: .It Fl chain Ar certs_file.pem
1.72      jmc      4786: The collection of PEM certificates
1.1       jsing    4787: that will be included in the response
                   4788: in addition to the signer certificate if the
                   4789: .Fl cert
                   4790: option was used for the request.
                   4791: This file is supposed to contain the certificate chain
                   4792: for the signer certificate from its issuer upwards.
                   4793: The
                   4794: .Fl reply
                   4795: command does not build a certificate chain automatically.
                   4796: .It Fl config Ar configfile
1.72      jmc      4797: Specify an alternative configuration file.
1.1       jsing    4798: .It Fl in Ar response.tsr
1.72      jmc      4799: Specify a previously created time stamp response (or time stamp token, if
1.1       jsing    4800: .Fl token_in
1.72      jmc      4801: is also specified)
1.1       jsing    4802: in DER format that will be written to the output file.
                   4803: This option does not require a request;
                   4804: it is useful, for example,
1.72      jmc      4805: to examine the content of a response or token
                   4806: or to extract the time stamp token from a response.
1.1       jsing    4807: If the input is a token and the output is a time stamp response a default
1.72      jmc      4808: .Qq granted
1.1       jsing    4809: status info is added to the token.
                   4810: .It Fl inkey Ar private.pem
                   4811: The signer private key of the TSA in PEM format.
                   4812: Overrides the
                   4813: .Cm signer_key
                   4814: config file option.
                   4815: .It Fl out Ar response.tsr
                   4816: The response is written to this file.
                   4817: The format and content of the file depends on other options (see
                   4818: .Fl text
                   4819: and
                   4820: .Fl token_out ) .
                   4821: The default is stdout.
                   4822: .It Fl passin Ar arg
                   4823: The key password source.
                   4824: .It Fl policy Ar object_id
1.72      jmc      4825: The default policy to use for the response.
                   4826: Either dotted OID notation or OID names defined
                   4827: in the config file can be used.
                   4828: If no policy is requested the TSA uses its own default policy.
1.1       jsing    4829: .It Fl queryfile Ar request.tsq
1.72      jmc      4830: The file containing a DER-encoded time stamp request.
1.1       jsing    4831: .It Fl section Ar tsa_section
1.72      jmc      4832: The config file section containing the settings for response generation.
1.1       jsing    4833: .It Fl signer Ar tsa_cert.pem
1.72      jmc      4834: The PEM signer certificate of the TSA.
1.1       jsing    4835: The TSA signing certificate must have exactly one extended key usage
                   4836: assigned to it: timeStamping.
                   4837: The extended key usage must also be critical,
                   4838: otherwise the certificate is going to be refused.
                   4839: Overrides the
                   4840: .Cm signer_cert
                   4841: variable of the config file.
                   4842: .It Fl text
1.72      jmc      4843: Output in human-readable text format instead of DER.
1.1       jsing    4844: .It Fl token_in
1.72      jmc      4845: The input is a DER-encoded time stamp token (ContentInfo)
                   4846: instead of a time stamp response (TimeStampResp).
1.1       jsing    4847: .It Fl token_out
1.72      jmc      4848: The output is a time stamp token (ContentInfo)
                   4849: instead of a time stamp response (TimeStampResp).
1.1       jsing    4850: .El
                   4851: .Pp
                   4852: The
                   4853: .Fl verify
                   4854: command is for verifying if a time stamp response or time stamp token
                   4855: is valid and matches a particular time stamp request or data file.
                   4856: The
                   4857: .Fl verify
                   4858: command does not use the configuration file.
                   4859: .Bl -tag -width Ds
                   4860: .It Fl CAfile Ar trusted_certs.pem
1.72      jmc      4861: The file containing a set of trusted self-signed PEM CA certificates.
                   4862: See
1.1       jsing    4863: .Nm verify
                   4864: for additional details.
                   4865: Either this option or
                   4866: .Fl CApath
                   4867: must be specified.
                   4868: .It Fl CApath Ar trusted_cert_path
1.72      jmc      4869: The directory containing the trused CA certificates of the client.
                   4870: See
1.1       jsing    4871: .Nm verify
                   4872: for additional details.
                   4873: Either this option or
                   4874: .Fl CAfile
                   4875: must be specified.
                   4876: .It Fl data Ar file_to_hash
                   4877: The response or token must be verified against
                   4878: .Ar file_to_hash .
                   4879: The file is hashed with the message digest algorithm specified in the token.
                   4880: The
                   4881: .Fl digest
                   4882: and
                   4883: .Fl queryfile
                   4884: options must not be specified with this one.
                   4885: .It Fl digest Ar digest_bytes
                   4886: The response or token must be verified against the message digest specified
                   4887: with this option.
                   4888: The number of bytes must match the message digest algorithm
                   4889: specified in the token.
                   4890: The
                   4891: .Fl data
                   4892: and
                   4893: .Fl queryfile
                   4894: options must not be specified with this one.
                   4895: .It Fl in Ar response.tsr
                   4896: The time stamp response that needs to be verified, in DER format.
                   4897: This option in mandatory.
                   4898: .It Fl queryfile Ar request.tsq
                   4899: The original time stamp request, in DER format.
                   4900: The
                   4901: .Fl data
                   4902: and
                   4903: .Fl digest
                   4904: options must not be specified with this one.
                   4905: .It Fl token_in
1.72      jmc      4906: The input is a DER-encoded time stamp token (ContentInfo)
                   4907: instead of a time stamp response (TimeStampResp).
1.1       jsing    4908: .It Fl untrusted Ar cert_file.pem
1.72      jmc      4909: Additional untrusted PEM certificates which may be needed
                   4910: when building the certificate chain for the TSA's signing certificate.
1.1       jsing    4911: This file must contain the TSA signing certificate and
                   4912: all intermediate CA certificates unless the response includes them.
                   4913: .El
                   4914: .Pp
1.72      jmc      4915: Options specified on the command line always override
                   4916: the settings in the config file:
1.1       jsing    4917: .Bl -tag -width Ds
                   4918: .It Cm tsa Ar section , Cm default_tsa
                   4919: This is the main section and it specifies the name of another section
                   4920: that contains all the options for the
                   4921: .Fl reply
                   4922: option.
1.72      jmc      4923: This section can be overridden with the
1.1       jsing    4924: .Fl section
                   4925: command line switch.
                   4926: .It Cm oid_file
                   4927: See
                   4928: .Nm ca
                   4929: for a description.
                   4930: .It Cm oid_section
                   4931: See
                   4932: .Nm ca
                   4933: for a description.
                   4934: .It Cm serial
1.72      jmc      4935: The file containing the hexadecimal serial number of the
1.1       jsing    4936: last time stamp response created.
                   4937: This number is incremented by 1 for each response.
1.72      jmc      4938: If the file does not exist at the time of response generation
                   4939: a new file is created with serial number 1.
1.1       jsing    4940: This parameter is mandatory.
                   4941: .It Cm signer_cert
                   4942: TSA signing certificate, in PEM format.
                   4943: The same as the
                   4944: .Fl signer
                   4945: command line option.
                   4946: .It Cm certs
1.72      jmc      4947: A set of PEM-encoded certificates that need to be
1.1       jsing    4948: included in the response.
                   4949: The same as the
                   4950: .Fl chain
                   4951: command line option.
                   4952: .It Cm signer_key
                   4953: The private key of the TSA, in PEM format.
                   4954: The same as the
                   4955: .Fl inkey
                   4956: command line option.
                   4957: .It Cm default_policy
                   4958: The default policy to use when the request does not mandate any policy.
                   4959: The same as the
                   4960: .Fl policy
                   4961: command line option.
                   4962: .It Cm other_policies
                   4963: Comma separated list of policies that are also acceptable by the TSA
                   4964: and used only if the request explicitly specifies one of them.
                   4965: .It Cm digests
                   4966: The list of message digest algorithms that the TSA accepts.
                   4967: At least one algorithm must be specified.
                   4968: This parameter is mandatory.
                   4969: .It Cm accuracy
                   4970: The accuracy of the time source of the TSA in seconds, milliseconds
                   4971: and microseconds.
                   4972: For example, secs:1, millisecs:500, microsecs:100.
                   4973: If any of the components is missing,
                   4974: zero is assumed for that field.
                   4975: .It Cm clock_precision_digits
1.72      jmc      4976: The maximum number of digits, which represent the fraction of seconds,
                   4977: that need to be included in the time field.
1.1       jsing    4978: The trailing zeroes must be removed from the time,
1.72      jmc      4979: so there might actually be fewer digits
1.1       jsing    4980: or no fraction of seconds at all.
                   4981: The maximum value is 6;
                   4982: the default is 0.
                   4983: .It Cm ordering
                   4984: If this option is yes,
                   4985: the responses generated by this TSA can always be ordered,
                   4986: even if the time difference between two responses is less
                   4987: than the sum of their accuracies.
                   4988: The default is no.
                   4989: .It Cm tsa_name
                   4990: Set this option to yes if the subject name of the TSA must be included in
                   4991: the TSA name field of the response.
                   4992: The default is no.
                   4993: .It Cm ess_cert_id_chain
                   4994: The SignedData objects created by the TSA always contain the
                   4995: certificate identifier of the signing certificate in a signed
                   4996: attribute (see RFC 2634, Enhanced Security Services).
                   4997: If this option is set to yes and either the
                   4998: .Cm certs
                   4999: variable or the
                   5000: .Fl chain
                   5001: option is specified then the certificate identifiers of the chain will also
                   5002: be included in the SigningCertificate signed attribute.
                   5003: If this variable is set to no,
                   5004: only the signing certificate identifier is included.
                   5005: The default is no.
                   5006: .El
                   5007: .Sh VERIFY
                   5008: .nr nS 1
                   5009: .Nm "openssl verify"
                   5010: .Op Fl CAfile Ar file
                   5011: .Op Fl CApath Ar directory
                   5012: .Op Fl check_ss_sig
                   5013: .Op Fl crl_check
                   5014: .Op Fl crl_check_all
                   5015: .Op Fl explicit_policy
                   5016: .Op Fl extended_crl
                   5017: .Op Fl help
                   5018: .Op Fl ignore_critical
                   5019: .Op Fl inhibit_any
                   5020: .Op Fl inhibit_map
                   5021: .Op Fl issuer_checks
                   5022: .Op Fl policy_check
                   5023: .Op Fl purpose Ar purpose
                   5024: .Op Fl untrusted Ar file
                   5025: .Op Fl verbose
                   5026: .Op Fl x509_strict
                   5027: .Op Ar certificates
                   5028: .nr nS 0
                   5029: .Pp
                   5030: The
                   5031: .Nm verify
                   5032: command verifies certificate chains.
                   5033: .Pp
                   5034: The options are as follows:
                   5035: .Bl -tag -width Ds
                   5036: .It Fl check_ss_sig
                   5037: Verify the signature on the self-signed root CA.
                   5038: This is disabled by default
                   5039: because it doesn't add any security.
                   5040: .It Fl CAfile Ar file
                   5041: A
                   5042: .Ar file
                   5043: of trusted certificates.
                   5044: The
                   5045: .Ar file
                   5046: should contain multiple certificates in PEM format, concatenated together.
                   5047: .It Fl CApath Ar directory
                   5048: A
                   5049: .Ar directory
                   5050: of trusted certificates.
1.76      jmc      5051: The certificates, or symbolic links to them,
                   5052: should have names of the form
                   5053: .Ar hash Ns .0 ,
                   5054: where
                   5055: .Ar hash
                   5056: is the hashed certificate subject name
                   5057: (see the
1.1       jsing    5058: .Fl hash
                   5059: option of the
                   5060: .Nm x509
                   5061: utility).
                   5062: .It Fl crl_check
1.76      jmc      5063: Check end entity certificate validity by attempting to look up a valid CRL.
1.1       jsing    5064: If a valid CRL cannot be found an error occurs.
                   5065: .It Fl crl_check_all
1.76      jmc      5066: Check the validity of all certificates in the chain by attempting
1.1       jsing    5067: to look up valid CRLs.
                   5068: .It Fl explicit_policy
1.76      jmc      5069: Set policy variable require-explicit-policy (RFC 3280).
1.1       jsing    5070: .It Fl extended_crl
                   5071: Enable extended CRL features such as indirect CRLs and alternate CRL
                   5072: signing keys.
                   5073: .It Fl help
1.76      jmc      5074: Print a usage message.
1.1       jsing    5075: .It Fl ignore_critical
1.76      jmc      5076: Ignore critical extensions instead of rejecting the certificate.
1.1       jsing    5077: .It Fl inhibit_any
1.76      jmc      5078: Set policy variable inhibit-any-policy (RFC 3280).
1.1       jsing    5079: .It Fl inhibit_map
1.76      jmc      5080: Set policy variable inhibit-policy-mapping (RFC 3280).
1.1       jsing    5081: .It Fl issuer_checks
1.76      jmc      5082: Print diagnostics relating to searches for the issuer certificate
                   5083: of the current certificate
                   5084: showing why each candidate issuer certificate was rejected.
                   5085: The presence of rejection messages
                   5086: does not itself imply that anything is wrong:
                   5087: during the normal verify process several rejections may take place.
1.1       jsing    5088: .It Fl policy_check
1.76      jmc      5089: Enable certificate policy processing.
1.1       jsing    5090: .It Fl purpose Ar purpose
                   5091: The intended use for the certificate.
                   5092: Without this option no chain verification will be done.
                   5093: Currently accepted uses are
1.76      jmc      5094: .Cm sslclient , sslserver ,
                   5095: .Cm nssslserver , smimesign ,
                   5096: .Cm smimeencrypt , crlsign ,
                   5097: .Cm any ,
1.1       jsing    5098: and
1.76      jmc      5099: .Cm ocsphelper .
1.1       jsing    5100: .It Fl untrusted Ar file
                   5101: A
                   5102: .Ar file
                   5103: of untrusted certificates.
                   5104: The
                   5105: .Ar file
                   5106: should contain multiple certificates.
                   5107: .It Fl verbose
                   5108: Print extra information about the operations being performed.
                   5109: .It Fl x509_strict
                   5110: Disable workarounds for broken certificates which have to be disabled
                   5111: for strict X.509 compliance.
                   5112: .It Ar certificates
1.76      jmc      5113: One or more PEM
1.1       jsing    5114: .Ar certificates
                   5115: to verify.
                   5116: If no certificate files are included, an attempt is made to read
                   5117: a certificate from standard input.
1.76      jmc      5118: If the first certificate filename begins with a dash,
                   5119: use a lone dash to mark the last option.
1.1       jsing    5120: .El
1.76      jmc      5121: .Pp
1.1       jsing    5122: The
                   5123: .Nm verify
                   5124: program uses the same functions as the internal SSL and S/MIME verification,
1.76      jmc      5125: with one crucial difference:
                   5126: wherever possible an attempt is made to continue after an error,
                   5127: whereas normally the verify operation would halt on the first error.
1.1       jsing    5128: This allows all the problems with a certificate chain to be determined.
                   5129: .Pp
1.76      jmc      5130: The verify operation consists of a number of separate steps.
1.1       jsing    5131: Firstly a certificate chain is built up starting from the supplied certificate
                   5132: and ending in the root CA.
                   5133: It is an error if the whole chain cannot be built up.
                   5134: The chain is built up by looking up the issuer's certificate of the current
                   5135: certificate.
                   5136: If a certificate is found which is its own issuer, it is assumed
                   5137: to be the root CA.
                   5138: .Pp
1.76      jmc      5139: All certificates whose subject name matches the issuer name
1.1       jsing    5140: of the current certificate are subject to further tests.
                   5141: The relevant authority key identifier components of the current certificate
1.76      jmc      5142: (if present) must match the subject key identifier (if present)
                   5143: and issuer and serial number of the candidate issuer;
                   5144: in addition the
                   5145: .Cm keyUsage
                   5146: extension of the candidate issuer (if present) must permit certificate signing.
1.1       jsing    5147: .Pp
                   5148: The lookup first looks in the list of untrusted certificates and if no match
                   5149: is found the remaining lookups are from the trusted certificates.
1.76      jmc      5150: The root CA is always looked up in the trusted certificate list:
                   5151: if the certificate to verify is a root certificate,
                   5152: then an exact match must be found in the trusted list.
1.1       jsing    5153: .Pp
                   5154: The second operation is to check every untrusted certificate's extensions for
                   5155: consistency with the supplied purpose.
                   5156: If the
                   5157: .Fl purpose
                   5158: option is not included, then no checks are done.
                   5159: The supplied or
                   5160: .Qq leaf
                   5161: certificate must have extensions compatible with the supplied purpose
                   5162: and all other certificates must also be valid CA certificates.
                   5163: The precise extensions required are described in more detail in
                   5164: the
1.76      jmc      5165: .Nm X509
1.1       jsing    5166: section below.
                   5167: .Pp
                   5168: The third operation is to check the trust settings on the root CA.
                   5169: The root CA should be trusted for the supplied purpose.
1.76      jmc      5170: A certificate with no trust settings is considered to be valid for
1.1       jsing    5171: all purposes.
                   5172: .Pp
                   5173: The final operation is to check the validity of the certificate chain.
                   5174: The validity period is checked against the current system time and the
1.76      jmc      5175: .Cm notBefore
1.1       jsing    5176: and
1.76      jmc      5177: .Cm notAfter
1.1       jsing    5178: dates in the certificate.
                   5179: The certificate signatures are also checked at this point.
                   5180: .Pp
                   5181: If all operations complete successfully, the certificate is considered
                   5182: valid.
                   5183: If any operation fails then the certificate is not valid.
                   5184: When a verify operation fails, the output messages can be somewhat cryptic.
                   5185: The general form of the error message is:
1.76      jmc      5186: .Bd -literal
                   5187: server.pem: /C=AU/ST=Queensland/O=CryptSoft Pty Ltd/CN=Test CA (1024-bit)
                   5188: error 24 at 1 depth lookup:invalid CA certificate
1.1       jsing    5189: .Ed
                   5190: .Pp
                   5191: The first line contains the name of the certificate being verified, followed by
                   5192: the subject name of the certificate.
                   5193: The second line contains the error number and the depth.
                   5194: The depth is the number of the certificate being verified when a
                   5195: problem was detected starting with zero for the certificate being verified
                   5196: itself, then 1 for the CA that signed the certificate and so on.
                   5197: Finally a text version of the error number is presented.
                   5198: .Pp
                   5199: An exhaustive list of the error codes and messages is shown below; this also
                   5200: includes the name of the error code as defined in the header file
1.12      bentley  5201: .In openssl/x509_vfy.h .
1.76      jmc      5202: Some of the error codes are defined but never returned: these are described as
1.1       jsing    5203: .Qq unused .
                   5204: .Bl -tag -width "XXXX"
1.78      jmc      5205: .It 0 X509_V_OK
1.1       jsing    5206: The operation was successful.
1.78      jmc      5207: .It 2 X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT
                   5208: The issuer certificate of an untrusted certificate could not be found.
                   5209: .It 3 X509_V_ERR_UNABLE_TO_GET_CRL
1.1       jsing    5210: The CRL of a certificate could not be found.
1.78      jmc      5211: .It 4 X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE
1.1       jsing    5212: The certificate signature could not be decrypted.
1.78      jmc      5213: This means that the actual signature value could not be determined
                   5214: rather than it not matching the expected value.
1.1       jsing    5215: This is only meaningful for RSA keys.
1.78      jmc      5216: .It 5 X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE
                   5217: The CRL signature could not be decrypted.
                   5218: This means that the actual signature value could not be determined
                   5219: rather than it not matching the expected value.
1.1       jsing    5220: Unused.
1.78      jmc      5221: .It 6 X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY
1.1       jsing    5222: The public key in the certificate
1.76      jmc      5223: .Cm SubjectPublicKeyInfo
1.1       jsing    5224: could not be read.
1.78      jmc      5225: .It 7 X509_V_ERR_CERT_SIGNATURE_FAILURE
1.1       jsing    5226: The signature of the certificate is invalid.
1.78      jmc      5227: .It 8 X509_V_ERR_CRL_SIGNATURE_FAILURE
1.1       jsing    5228: The signature of the certificate is invalid.
1.78      jmc      5229: .It 9 X509_V_ERR_CERT_NOT_YET_VALID
1.1       jsing    5230: The certificate is not yet valid: the
1.76      jmc      5231: .Cm notBefore
1.1       jsing    5232: date is after the current time.
1.78      jmc      5233: .It 10 X509_V_ERR_CERT_HAS_EXPIRED
1.1       jsing    5234: The certificate has expired; that is, the
1.76      jmc      5235: .Cm notAfter
1.1       jsing    5236: date is before the current time.
1.78      jmc      5237: .It 11 X509_V_ERR_CRL_NOT_YET_VALID
1.1       jsing    5238: The CRL is not yet valid.
1.78      jmc      5239: .It 12 X509_V_ERR_CRL_HAS_EXPIRED
1.1       jsing    5240: The CRL has expired.
1.78      jmc      5241: .It 13 X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD
1.1       jsing    5242: The certificate
1.76      jmc      5243: .Cm notBefore
1.1       jsing    5244: field contains an invalid time.
1.78      jmc      5245: .It 14 X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD
1.1       jsing    5246: The certificate
1.76      jmc      5247: .Cm notAfter
1.1       jsing    5248: field contains an invalid time.
1.78      jmc      5249: .It 15 X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD
1.1       jsing    5250: The CRL
1.76      jmc      5251: .Cm lastUpdate
1.1       jsing    5252: field contains an invalid time.
1.78      jmc      5253: .It 16 X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD
1.1       jsing    5254: The CRL
1.76      jmc      5255: .Cm nextUpdate
1.1       jsing    5256: field contains an invalid time.
1.78      jmc      5257: .It 17 X509_V_ERR_OUT_OF_MEM
1.1       jsing    5258: An error occurred trying to allocate memory.
                   5259: This should never happen.
1.78      jmc      5260: .It 18 X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT
1.1       jsing    5261: The passed certificate is self-signed and the same certificate cannot be
                   5262: found in the list of trusted certificates.
1.78      jmc      5263: .It 19 X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN
1.1       jsing    5264: The certificate chain could be built up using the untrusted certificates but
                   5265: the root could not be found locally.
1.78      jmc      5266: .It 20 X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY
1.1       jsing    5267: The issuer certificate of a locally looked up certificate could not be found.
                   5268: This normally means the list of trusted certificates is not complete.
1.78      jmc      5269: .It 21 X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE
1.1       jsing    5270: No signatures could be verified because the chain contains only one
                   5271: certificate and it is not self-signed.
1.78      jmc      5272: .It 22 X509_V_ERR_CERT_CHAIN_TOO_LONG
1.1       jsing    5273: The certificate chain length is greater than the supplied maximum depth.
                   5274: Unused.
1.78      jmc      5275: .It 23 X509_V_ERR_CERT_REVOKED
1.1       jsing    5276: The certificate has been revoked.
1.78      jmc      5277: .It 24 X509_V_ERR_INVALID_CA
1.1       jsing    5278: A CA certificate is invalid.
                   5279: Either it is not a CA or its extensions are not consistent
                   5280: with the supplied purpose.
1.78      jmc      5281: .It 25 X509_V_ERR_PATH_LENGTH_EXCEEDED
1.1       jsing    5282: The
1.76      jmc      5283: .Cm basicConstraints
1.1       jsing    5284: pathlength parameter has been exceeded.
1.78      jmc      5285: .It 26 X509_V_ERR_INVALID_PURPOSE
1.1       jsing    5286: The supplied certificate cannot be used for the specified purpose.
1.78      jmc      5287: .It 27 X509_V_ERR_CERT_UNTRUSTED
1.1       jsing    5288: The root CA is not marked as trusted for the specified purpose.
1.78      jmc      5289: .It 28 X509_V_ERR_CERT_REJECTED
1.1       jsing    5290: The root CA is marked to reject the specified purpose.
1.78      jmc      5291: .It 29 X509_V_ERR_SUBJECT_ISSUER_MISMATCH
1.1       jsing    5292: The current candidate issuer certificate was rejected because its subject name
                   5293: did not match the issuer name of the current certificate.
                   5294: Only displayed when the
                   5295: .Fl issuer_checks
                   5296: option is set.
1.78      jmc      5297: .It 30 X509_V_ERR_AKID_SKID_MISMATCH
1.1       jsing    5298: The current candidate issuer certificate was rejected because its subject key
                   5299: identifier was present and did not match the authority key identifier current
                   5300: certificate.
                   5301: Only displayed when the
                   5302: .Fl issuer_checks
                   5303: option is set.
1.78      jmc      5304: .It 31 X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH
1.1       jsing    5305: The current candidate issuer certificate was rejected because its issuer name
                   5306: and serial number were present and did not match the authority key identifier
                   5307: of the current certificate.
                   5308: Only displayed when the
                   5309: .Fl issuer_checks
                   5310: option is set.
1.78      jmc      5311: .It 32 X509_V_ERR_KEYUSAGE_NO_CERTSIGN
1.1       jsing    5312: The current candidate issuer certificate was rejected because its
1.76      jmc      5313: .Cm keyUsage
1.1       jsing    5314: extension does not permit certificate signing.
1.78      jmc      5315: .It 50 X509_V_ERR_APPLICATION_VERIFICATION
1.1       jsing    5316: An application specific error.
                   5317: Unused.
                   5318: .El
                   5319: .Sh VERSION
                   5320: .Nm openssl version
                   5321: .Op Fl abdfopv
                   5322: .Pp
                   5323: The
                   5324: .Nm version
                   5325: command is used to print out version information about
1.79    ! jmc      5326: .Nm openssl .
1.1       jsing    5327: .Pp
                   5328: The options are as follows:
                   5329: .Bl -tag -width Ds
                   5330: .It Fl a
                   5331: All information: this is the same as setting all the other flags.
                   5332: .It Fl b
                   5333: The date the current version of
1.79    ! jmc      5334: .Nm openssl
1.1       jsing    5335: was built.
                   5336: .It Fl d
                   5337: .Ev OPENSSLDIR
                   5338: setting.
                   5339: .It Fl f
                   5340: Compilation flags.
                   5341: .It Fl o
                   5342: Option information: various options set when the library was built.
                   5343: .It Fl p
                   5344: Platform setting.
                   5345: .It Fl v
                   5346: The current
1.79    ! jmc      5347: .Nm openssl
1.1       jsing    5348: version.
                   5349: .El
                   5350: .\"
                   5351: .\" X509
                   5352: .\"
                   5353: .Sh X509
                   5354: .nr nS 1
                   5355: .Nm "openssl x509"
                   5356: .Bk -words
                   5357: .Op Fl C
                   5358: .Op Fl addreject Ar arg
                   5359: .Op Fl addtrust Ar arg
                   5360: .Op Fl alias
                   5361: .Op Fl CA Ar file
                   5362: .Op Fl CAcreateserial
                   5363: .Op Fl CAform Ar DER | PEM
                   5364: .Op Fl CAkey Ar file
                   5365: .Op Fl CAkeyform Ar DER | PEM
                   5366: .Op Fl CAserial Ar file
                   5367: .Op Fl certopt Ar option
                   5368: .Op Fl checkend Ar arg
                   5369: .Op Fl clrext
                   5370: .Op Fl clrreject
                   5371: .Op Fl clrtrust
                   5372: .Op Fl dates
                   5373: .Op Fl days Ar arg
                   5374: .Op Fl email
                   5375: .Op Fl enddate
                   5376: .Op Fl extensions Ar section
                   5377: .Op Fl extfile Ar file
                   5378: .Op Fl fingerprint
                   5379: .Op Fl hash
                   5380: .Op Fl in Ar file
                   5381: .Op Fl inform Ar DER | NET | PEM
                   5382: .Op Fl issuer
                   5383: .Op Fl issuer_hash
                   5384: .Op Fl issuer_hash_old
                   5385: .Op Fl keyform Ar DER | PEM
1.29      bcook    5386: .Op Fl md5 | sha1
1.1       jsing    5387: .Op Fl modulus
                   5388: .Op Fl nameopt Ar option
                   5389: .Op Fl noout
                   5390: .Op Fl ocsp_uri
                   5391: .Op Fl ocspid
                   5392: .Op Fl out Ar file
                   5393: .Op Fl outform Ar DER | NET | PEM
                   5394: .Op Fl passin Ar arg
                   5395: .Op Fl pubkey
                   5396: .Op Fl purpose
                   5397: .Op Fl req
                   5398: .Op Fl serial
                   5399: .Op Fl set_serial Ar n
                   5400: .Op Fl setalias Ar arg
                   5401: .Op Fl signkey Ar file
                   5402: .Op Fl startdate
                   5403: .Op Fl subject
                   5404: .Op Fl subject_hash
                   5405: .Op Fl subject_hash_old
                   5406: .Op Fl text
                   5407: .Op Fl trustout
                   5408: .Op Fl x509toreq
                   5409: .Ek
                   5410: .nr nS 0
                   5411: .Pp
                   5412: The
                   5413: .Nm x509
                   5414: command is a multi-purpose certificate utility.
                   5415: It can be used to display certificate information, convert certificates to
                   5416: various forms, sign certificate requests like a
                   5417: .Qq mini CA ,
                   5418: or edit certificate trust settings.
                   5419: .Pp
                   5420: Since there are a large number of options, they are split up into
                   5421: various sections.
                   5422: .Sh X509 INPUT, OUTPUT, AND GENERAL PURPOSE OPTIONS
                   5423: .Bl -tag -width "XXXX"
                   5424: .It Fl in Ar file
                   5425: This specifies the input
                   5426: .Ar file
                   5427: to read a certificate from, or standard input if this option is not specified.
                   5428: .It Fl inform Ar DER | NET | PEM
                   5429: This specifies the input format.
                   5430: Normally, the command will expect an X.509 certificate,
                   5431: but this can change if other options such as
                   5432: .Fl req
                   5433: are present.
                   5434: The
                   5435: .Ar DER
                   5436: format is the DER encoding of the certificate and
                   5437: .Ar PEM
                   5438: is the base64 encoding of the DER encoding with header and footer lines added.
                   5439: The
                   5440: .Ar NET
                   5441: option is an obscure Netscape server format that is now
                   5442: obsolete.
1.29      bcook    5443: .It Fl md5 | sha1
1.1       jsing    5444: The digest to use.
                   5445: This affects any signing or display option that uses a message digest,
                   5446: such as the
                   5447: .Fl fingerprint , signkey ,
                   5448: and
                   5449: .Fl CA
                   5450: options.
                   5451: If not specified, MD5 is used.
                   5452: If the key being used to sign with is a DSA key,
                   5453: this option has no effect: SHA1 is always used with DSA keys.
                   5454: .It Fl out Ar file
                   5455: This specifies the output
                   5456: .Ar file
                   5457: to write to, or standard output by default.
                   5458: .It Fl outform Ar DER | NET | PEM
                   5459: This specifies the output format; the options have the same meaning as the
                   5460: .Fl inform
                   5461: option.
                   5462: .It Fl passin Ar arg
                   5463: The key password source.
                   5464: .El
                   5465: .Sh X509 DISPLAY OPTIONS
                   5466: .Sy Note :
                   5467: The
                   5468: .Fl alias
                   5469: and
                   5470: .Fl purpose
                   5471: options are also display options but are described in the
                   5472: .Sx X509 TRUST SETTINGS
                   5473: section.
                   5474: .Bl -tag -width "XXXX"
                   5475: .It Fl C
                   5476: This outputs the certificate in the form of a C source file.
                   5477: .It Fl certopt Ar option
                   5478: Customise the output format used with
                   5479: .Fl text .
                   5480: The
                   5481: .Ar option
                   5482: argument can be a single option or multiple options separated by commas.
                   5483: The
                   5484: .Fl certopt
                   5485: switch may also be used more than once to set multiple options.
                   5486: See the
                   5487: .Sx X509 TEXT OPTIONS
                   5488: section for more information.
                   5489: .It Fl dates
                   5490: Prints out the start and expiry dates of a certificate.
                   5491: .It Fl email
                   5492: Outputs the email address(es), if any.
                   5493: .It Fl enddate
                   5494: Prints out the expiry date of the certificate; that is, the
                   5495: .Em notAfter
                   5496: date.
                   5497: .It Fl fingerprint
                   5498: Prints out the digest of the DER-encoded version of the whole certificate
                   5499: (see
                   5500: .Sx DIGEST OPTIONS ) .
                   5501: .It Fl hash
                   5502: A synonym for
                   5503: .Fl subject_hash ,
                   5504: for backwards compatibility.
                   5505: .It Fl issuer
                   5506: Outputs the issuer name.
                   5507: .It Fl issuer_hash
                   5508: Outputs the
                   5509: .Qq hash
                   5510: of the certificate issuer name.
                   5511: .It Fl issuer_hash_old
                   5512: Outputs the
                   5513: .Qq hash
                   5514: of the certificate issuer name using the older algorithm
                   5515: as used by
                   5516: .Nm OpenSSL
                   5517: versions before 1.0.0.
                   5518: .It Fl modulus
                   5519: This option prints out the value of the modulus of the public key
                   5520: contained in the certificate.
                   5521: .It Fl nameopt Ar option
                   5522: Option which determines how the subject or issuer names are displayed.
                   5523: The
                   5524: .Ar option
                   5525: argument can be a single option or multiple options separated by commas.
                   5526: Alternatively, the
                   5527: .Fl nameopt
                   5528: switch may be used more than once to set multiple options.
                   5529: See the
                   5530: .Sx X509 NAME OPTIONS
                   5531: section for more information.
                   5532: .It Fl noout
                   5533: This option prevents output of the encoded version of the request.
                   5534: .It Fl ocsp_uri
                   5535: Outputs the OCSP responder addresses, if any.
                   5536: .It Fl ocspid
                   5537: Print OCSP hash values for the subject name and public key.
                   5538: .It Fl pubkey
                   5539: Output the public key.
                   5540: .It Fl serial
                   5541: Outputs the certificate serial number.
                   5542: .It Fl startdate
                   5543: Prints out the start date of the certificate; that is, the
                   5544: .Em notBefore
                   5545: date.
                   5546: .It Fl subject
                   5547: Outputs the subject name.
                   5548: .It Fl subject_hash
                   5549: Outputs the
                   5550: .Qq hash
                   5551: of the certificate subject name.
                   5552: This is used in
                   5553: .Nm OpenSSL
                   5554: to form an index to allow certificates in a directory to be looked up
                   5555: by subject name.
                   5556: .It Fl subject_hash_old
                   5557: Outputs the
                   5558: .Qq hash
                   5559: of the certificate subject name using the older algorithm
                   5560: as used by
                   5561: .Nm OpenSSL
                   5562: versions before 1.0.0.
                   5563: .It Fl text
                   5564: Prints out the certificate in text form.
                   5565: Full details are output including the public key, signature algorithms,
                   5566: issuer and subject names, serial number, any extensions present,
                   5567: and any trust settings.
                   5568: .El
                   5569: .Sh X509 TRUST SETTINGS
                   5570: Please note these options are currently experimental and may well change.
                   5571: .Pp
                   5572: A
                   5573: .Em trusted certificate
                   5574: is an ordinary certificate which has several
                   5575: additional pieces of information attached to it such as the permitted
                   5576: and prohibited uses of the certificate and an
                   5577: .Qq alias .
                   5578: .Pp
                   5579: Normally, when a certificate is being verified at least one certificate
                   5580: must be
                   5581: .Qq trusted .
                   5582: By default, a trusted certificate must be stored
                   5583: locally and must be a root CA: any certificate chain ending in this CA
                   5584: is then usable for any purpose.
                   5585: .Pp
                   5586: Trust settings currently are only used with a root CA.
                   5587: They allow a finer control over the purposes the root CA can be used for.
                   5588: For example, a CA may be trusted for an SSL client but not for
                   5589: SSL server use.
                   5590: .Pp
                   5591: See the description of the
                   5592: .Nm verify
                   5593: utility for more information on the meaning of trust settings.
                   5594: .Pp
                   5595: Future versions of
                   5596: .Nm OpenSSL
                   5597: will recognize trust settings on any certificate: not just root CAs.
                   5598: .Bl -tag -width "XXXX"
                   5599: .It Fl addreject Ar arg
                   5600: Adds a prohibited use.
                   5601: It accepts the same values as the
                   5602: .Fl addtrust
                   5603: option.
                   5604: .It Fl addtrust Ar arg
                   5605: Adds a trusted certificate use.
                   5606: Any object name can be used here, but currently only
                   5607: .Ar clientAuth
                   5608: .Pq SSL client use ,
                   5609: .Ar serverAuth
                   5610: .Pq SSL server use ,
                   5611: and
                   5612: .Ar emailProtection
                   5613: .Pq S/MIME email
                   5614: are used.
                   5615: Other
                   5616: .Nm OpenSSL
                   5617: applications may define additional uses.
                   5618: .It Fl alias
                   5619: Outputs the certificate alias, if any.
                   5620: .It Fl clrreject
                   5621: Clears all the prohibited or rejected uses of the certificate.
                   5622: .It Fl clrtrust
                   5623: Clears all the permitted or trusted uses of the certificate.
                   5624: .It Fl purpose
                   5625: This option performs tests on the certificate extensions and outputs
                   5626: the results.
                   5627: For a more complete description, see the
                   5628: .Sx X.509 CERTIFICATE EXTENSIONS
                   5629: section.
                   5630: .It Fl setalias Ar arg
                   5631: Sets the alias of the certificate.
                   5632: This will allow the certificate to be referred to using a nickname,
                   5633: for example
                   5634: .Qq Steve's Certificate .
                   5635: .It Fl trustout
                   5636: This causes
                   5637: .Nm x509
                   5638: to output a
                   5639: .Em trusted certificate .
                   5640: An ordinary or trusted certificate can be input, but by default an ordinary
                   5641: certificate is output and any trust settings are discarded.
                   5642: With the
                   5643: .Fl trustout
                   5644: option a trusted certificate is output.
                   5645: A trusted certificate is automatically output if any trust settings
                   5646: are modified.
                   5647: .El
                   5648: .Sh X509 SIGNING OPTIONS
                   5649: The
                   5650: .Nm x509
                   5651: utility can be used to sign certificates and requests: it
                   5652: can thus behave like a
                   5653: .Qq mini CA .
                   5654: .Bl -tag -width "XXXX"
                   5655: .It Fl CA Ar file
                   5656: Specifies the CA certificate to be used for signing.
                   5657: When this option is present,
                   5658: .Nm x509
                   5659: behaves like a
                   5660: .Qq mini CA .
                   5661: The input file is signed by the CA using this option;
                   5662: that is, its issuer name is set to the subject name of the CA and it is
                   5663: digitally signed using the CA's private key.
                   5664: .Pp
                   5665: This option is normally combined with the
                   5666: .Fl req
                   5667: option.
                   5668: Without the
                   5669: .Fl req
                   5670: option, the input is a certificate which must be self-signed.
                   5671: .It Fl CAcreateserial
                   5672: With this option the CA serial number file is created if it does not exist:
                   5673: it will contain the serial number
                   5674: .Sq 02
                   5675: and the certificate being signed will have
                   5676: .Sq 1
                   5677: as its serial number.
                   5678: Normally, if the
                   5679: .Fl CA
                   5680: option is specified and the serial number file does not exist, it is an error.
                   5681: .It Fl CAform Ar DER | PEM
                   5682: The format of the CA certificate file.
                   5683: The default is
                   5684: .Ar PEM .
                   5685: .It Fl CAkey Ar file
                   5686: Sets the CA private key to sign a certificate with.
                   5687: If this option is not specified, it is assumed that the CA private key
                   5688: is present in the CA certificate file.
                   5689: .It Fl CAkeyform Ar DER | PEM
                   5690: The format of the CA private key.
                   5691: The default is
                   5692: .Ar PEM .
                   5693: .It Fl CAserial Ar file
                   5694: Sets the CA serial number file to use.
                   5695: .Pp
                   5696: When the
                   5697: .Fl CA
                   5698: option is used to sign a certificate,
                   5699: it uses a serial number specified in a file.
                   5700: This file consists of one line containing an even number of hex digits
                   5701: with the serial number to use.
                   5702: After each use the serial number is incremented and written out
                   5703: to the file again.
                   5704: .Pp
                   5705: The default filename consists of the CA certificate file base name with
                   5706: .Pa .srl
                   5707: appended.
                   5708: For example, if the CA certificate file is called
                   5709: .Pa mycacert.pem ,
                   5710: it expects to find a serial number file called
                   5711: .Pa mycacert.srl .
                   5712: .It Fl checkend Ar arg
                   5713: Check whether the certificate expires in the next
                   5714: .Ar arg
                   5715: seconds.
                   5716: If so, exit with return value 1;
                   5717: otherwise exit with return value 0.
                   5718: .It Fl clrext
                   5719: Delete any extensions from a certificate.
                   5720: This option is used when a certificate is being created from another
                   5721: certificate (for example with the
                   5722: .Fl signkey
                   5723: or the
                   5724: .Fl CA
                   5725: options).
                   5726: Normally, all extensions are retained.
                   5727: .It Fl days Ar arg
                   5728: Specifies the number of days to make a certificate valid for.
                   5729: The default is 30 days.
                   5730: .It Fl extensions Ar section
                   5731: The section to add certificate extensions from.
                   5732: If this option is not specified, the extensions should either be
                   5733: contained in the unnamed
                   5734: .Pq default
                   5735: section or the default section should contain a variable called
                   5736: .Qq extensions
                   5737: which contains the section to use.
                   5738: .It Fl extfile Ar file
                   5739: File containing certificate extensions to use.
                   5740: If not specified, no extensions are added to the certificate.
                   5741: .It Fl keyform Ar DER | PEM
                   5742: Specifies the format
                   5743: .Pq DER or PEM
                   5744: of the private key file used in the
                   5745: .Fl signkey
                   5746: option.
                   5747: .It Fl req
                   5748: By default, a certificate is expected on input.
                   5749: With this option a certificate request is expected instead.
                   5750: .It Fl set_serial Ar n
                   5751: Specifies the serial number to use.
                   5752: This option can be used with either the
                   5753: .Fl signkey
                   5754: or
                   5755: .Fl CA
                   5756: options.
                   5757: If used in conjunction with the
                   5758: .Fl CA
                   5759: option, the serial number file (as specified by the
                   5760: .Fl CAserial
                   5761: or
                   5762: .Fl CAcreateserial
                   5763: options) is not used.
                   5764: .Pp
                   5765: The serial number can be decimal or hex (if preceded by
                   5766: .Sq 0x ) .
                   5767: Negative serial numbers can also be specified but their use is not recommended.
                   5768: .It Fl signkey Ar file
                   5769: This option causes the input file to be self-signed using the supplied
                   5770: private key.
                   5771: .Pp
                   5772: If the input file is a certificate, it sets the issuer name to the
                   5773: subject name
                   5774: .Pq i.e. makes it self-signed ,
                   5775: changes the public key to the supplied value,
                   5776: and changes the start and end dates.
                   5777: The start date is set to the current time and the end date is set to
                   5778: a value determined by the
                   5779: .Fl days
                   5780: option.
                   5781: Any certificate extensions are retained unless the
                   5782: .Fl clrext
                   5783: option is supplied.
                   5784: .Pp
                   5785: If the input is a certificate request, a self-signed certificate
                   5786: is created using the supplied private key using the subject name in
                   5787: the request.
                   5788: .It Fl x509toreq
                   5789: Converts a certificate into a certificate request.
                   5790: The
                   5791: .Fl signkey
                   5792: option is used to pass the required private key.
                   5793: .El
                   5794: .Sh X509 NAME OPTIONS
                   5795: The
                   5796: .Fl nameopt
                   5797: command line switch determines how the subject and issuer
                   5798: names are displayed.
                   5799: If no
                   5800: .Fl nameopt
                   5801: switch is present, the default
                   5802: .Qq oneline
                   5803: format is used which is compatible with previous versions of
                   5804: .Nm OpenSSL .
                   5805: Each option is described in detail below; all options can be preceded by a
                   5806: .Sq -
                   5807: to turn the option off.
                   5808: Only
                   5809: .Ar compat ,
                   5810: .Ar RFC2253 ,
                   5811: .Ar oneline ,
                   5812: and
                   5813: .Ar multiline
                   5814: will normally be used.
                   5815: .Bl -tag -width "XXXX"
                   5816: .It Ar align
                   5817: Align field values for a more readable output.
                   5818: Only usable with
                   5819: .Ar sep_multiline .
                   5820: .It Ar compat
                   5821: Use the old format.
                   5822: This is equivalent to specifying no name options at all.
                   5823: .It Ar dn_rev
                   5824: Reverse the fields of the DN.
                   5825: This is required by RFC 2253.
                   5826: As a side effect, this also reverses the order of multiple AVAs but this is
                   5827: permissible.
                   5828: .It Ar dump_all
                   5829: Dump all fields.
                   5830: This option, when used with
                   5831: .Ar dump_der ,
                   5832: allows the DER encoding of the structure to be unambiguously determined.
                   5833: .It Ar dump_der
                   5834: When this option is set, any fields that need to be hexdumped will
                   5835: be dumped using the DER encoding of the field.
                   5836: Otherwise just the content octets will be displayed.
                   5837: Both options use the RFC 2253 #XXXX... format.
                   5838: .It Ar dump_nostr
                   5839: Dump non-character string types
                   5840: .Pq for example OCTET STRING ;
                   5841: if this option is not set, non-character string types will be displayed
                   5842: as though each content octet represents a single character.
                   5843: .It Ar dump_unknown
                   5844: Dump any field whose OID is not recognised by
                   5845: .Nm OpenSSL .
                   5846: .It Ar esc_2253
                   5847: Escape the
                   5848: .Qq special
                   5849: characters required by RFC 2253 in a field that is
                   5850: .Dq \& ,+"\*(Lt\*(Gt; .
                   5851: Additionally,
                   5852: .Sq #
                   5853: is escaped at the beginning of a string
                   5854: and a space character at the beginning or end of a string.
                   5855: .It Ar esc_ctrl
                   5856: Escape control characters.
                   5857: That is, those with ASCII values less than 0x20
                   5858: .Pq space
                   5859: and the delete
                   5860: .Pq 0x7f
                   5861: character.
                   5862: They are escaped using the RFC 2253 \eXX notation (where XX are two hex
                   5863: digits representing the character value).
                   5864: .It Ar esc_msb
                   5865: Escape characters with the MSB set; that is, with ASCII values larger than
                   5866: 127.
                   5867: .It Ar multiline
                   5868: A multiline format.
                   5869: It is equivalent to
                   5870: .Ar esc_ctrl , esc_msb , sep_multiline ,
                   5871: .Ar space_eq , lname ,
                   5872: and
                   5873: .Ar align .
                   5874: .It Ar no_type
                   5875: This option does not attempt to interpret multibyte characters in any
                   5876: way.
                   5877: That is, their content octets are merely dumped as though one octet
                   5878: represents each character.
                   5879: This is useful for diagnostic purposes but will result in rather odd
                   5880: looking output.
                   5881: .It Ar nofname , sname , lname , oid
                   5882: These options alter how the field name is displayed.
                   5883: .Ar nofname
                   5884: does not display the field at all.
                   5885: .Ar sname
                   5886: uses the
                   5887: .Qq short name
                   5888: form (CN for
                   5889: .Ar commonName ,
                   5890: for example).
                   5891: .Ar lname
                   5892: uses the long form.
                   5893: .Ar oid
                   5894: represents the OID in numerical form and is useful for diagnostic purpose.
                   5895: .It Ar oneline
                   5896: A oneline format which is more readable than
                   5897: .Ar RFC2253 .
                   5898: It is equivalent to specifying the
                   5899: .Ar esc_2253 , esc_ctrl , esc_msb , utf8 ,
                   5900: .Ar dump_nostr , dump_der , use_quote , sep_comma_plus_spc ,
                   5901: .Ar space_eq ,
                   5902: and
                   5903: .Ar sname
                   5904: options.
                   5905: .It Ar RFC2253
                   5906: Displays names compatible with RFC 2253; equivalent to
                   5907: .Ar esc_2253 , esc_ctrl ,
                   5908: .Ar esc_msb , utf8 , dump_nostr , dump_unknown ,
                   5909: .Ar dump_der , sep_comma_plus , dn_rev ,
                   5910: and
                   5911: .Ar sname .
                   5912: .It Ar sep_comma_plus , sep_comma_plus_space , sep_semi_plus_space , sep_multiline
                   5913: These options determine the field separators.
                   5914: The first character is between RDNs and the second between multiple AVAs
                   5915: (multiple AVAs are very rare and their use is discouraged).
                   5916: The options ending in
                   5917: .Qq space
                   5918: additionally place a space after the separator to make it more readable.
                   5919: The
                   5920: .Ar sep_multiline
                   5921: uses a linefeed character for the RDN separator and a spaced
                   5922: .Sq +
                   5923: for the AVA separator.
                   5924: It also indents the fields by four characters.
                   5925: .It Ar show_type
                   5926: Show the type of the ASN1 character string.
                   5927: The type precedes the field contents.
                   5928: For example
                   5929: .Qq BMPSTRING: Hello World .
                   5930: .It Ar space_eq
                   5931: Places spaces round the
                   5932: .Sq =
                   5933: character which follows the field name.
                   5934: .It Ar use_quote
                   5935: Escapes some characters by surrounding the whole string with
                   5936: .Sq \&"
                   5937: characters.
                   5938: Without the option, all escaping is done with the
                   5939: .Sq \e
                   5940: character.
                   5941: .It Ar utf8
                   5942: Convert all strings to UTF8 format first.
                   5943: This is required by RFC 2253.
                   5944: If you are lucky enough to have a UTF8 compatible terminal,
                   5945: the use of this option (and
                   5946: .Em not
                   5947: setting
                   5948: .Ar esc_msb )
                   5949: may result in the correct display of multibyte
                   5950: .Pq international
                   5951: characters.
                   5952: If this option is not present, multibyte characters larger than 0xff
                   5953: will be represented using the format \eUXXXX for 16 bits and \eWXXXXXXXX
                   5954: for 32 bits.
                   5955: Also, if this option is off, any UTF8Strings will be converted to their
                   5956: character form first.
                   5957: .El
                   5958: .Sh X509 TEXT OPTIONS
                   5959: As well as customising the name output format, it is also possible to
                   5960: customise the actual fields printed using the
                   5961: .Fl certopt
                   5962: options when the
                   5963: .Fl text
                   5964: option is present.
                   5965: The default behaviour is to print all fields.
                   5966: .Bl -tag -width "XXXX"
                   5967: .It Ar ca_default
                   5968: The value used by the
                   5969: .Nm ca
                   5970: utility; equivalent to
                   5971: .Ar no_issuer , no_pubkey , no_header ,
                   5972: .Ar no_version , no_sigdump ,
                   5973: and
                   5974: .Ar no_signame .
                   5975: .It Ar compatible
                   5976: Use the old format.
                   5977: This is equivalent to specifying no output options at all.
                   5978: .It Ar ext_default
                   5979: Retain default extension behaviour: attempt to print out unsupported
                   5980: certificate extensions.
                   5981: .It Ar ext_dump
                   5982: Hex dump unsupported extensions.
                   5983: .It Ar ext_error
                   5984: Print an error message for unsupported certificate extensions.
                   5985: .It Ar ext_parse
                   5986: ASN1 parse unsupported extensions.
                   5987: .It Ar no_aux
                   5988: Don't print out certificate trust information.
                   5989: .It Ar no_extensions
                   5990: Don't print out any X509V3 extensions.
                   5991: .It Ar no_header
                   5992: Don't print header information: that is, the lines saying
                   5993: .Qq Certificate
                   5994: and
                   5995: .Qq Data .
                   5996: .It Ar no_issuer
                   5997: Don't print out the issuer name.
                   5998: .It Ar no_pubkey
                   5999: Don't print out the public key.
                   6000: .It Ar no_serial
                   6001: Don't print out the serial number.
                   6002: .It Ar no_sigdump
                   6003: Don't give a hexadecimal dump of the certificate signature.
                   6004: .It Ar no_signame
                   6005: Don't print out the signature algorithm used.
                   6006: .It Ar no_subject
                   6007: Don't print out the subject name.
                   6008: .It Ar no_validity
                   6009: Don't print the validity; that is, the
                   6010: .Em notBefore
                   6011: and
                   6012: .Em notAfter
                   6013: fields.
                   6014: .It Ar no_version
                   6015: Don't print out the version number.
                   6016: .El
                   6017: .Sh X509 EXAMPLES
                   6018: Display the contents of a certificate:
                   6019: .Pp
                   6020: .Dl $ openssl x509 -in cert.pem -noout -text
                   6021: .Pp
                   6022: Display the certificate serial number:
                   6023: .Pp
                   6024: .Dl $ openssl x509 -in cert.pem -noout -serial
                   6025: .Pp
                   6026: Display the certificate subject name:
                   6027: .Pp
                   6028: .Dl $ openssl x509 -in cert.pem -noout -subject
                   6029: .Pp
                   6030: Display the certificate subject name in RFC 2253 form:
                   6031: .Pp
                   6032: .Dl $ openssl x509 -in cert.pem -noout -subject -nameopt RFC2253
                   6033: .Pp
                   6034: Display the certificate subject name in oneline form on a terminal
                   6035: supporting UTF8:
                   6036: .Bd -literal -offset indent
                   6037: $ openssl x509 -in cert.pem -noout -subject \e
                   6038:        -nameopt oneline,-esc_msb
                   6039: .Ed
                   6040: .Pp
                   6041: Display the certificate MD5 fingerprint:
                   6042: .Pp
                   6043: .Dl $ openssl x509 -in cert.pem -noout -fingerprint
                   6044: .Pp
                   6045: Display the certificate SHA1 fingerprint:
                   6046: .Pp
                   6047: .Dl $ openssl x509 -sha1 -in cert.pem -noout -fingerprint
                   6048: .Pp
                   6049: Convert a certificate from PEM to DER format:
                   6050: .Pp
                   6051: .Dl "$ openssl x509 -in cert.pem -inform PEM -out cert.der -outform DER"
                   6052: .Pp
                   6053: Convert a certificate to a certificate request:
                   6054: .Bd -literal -offset indent
                   6055: $ openssl x509 -x509toreq -in cert.pem -out req.pem \e
                   6056:        -signkey key.pem
                   6057: .Ed
                   6058: .Pp
                   6059: Convert a certificate request into a self-signed certificate using
                   6060: extensions for a CA:
                   6061: .Bd -literal -offset indent
                   6062: $ openssl x509 -req -in careq.pem -extfile openssl.cnf -extensions \e
                   6063:        v3_ca -signkey key.pem -out cacert.pem
                   6064: .Ed
                   6065: .Pp
                   6066: Sign a certificate request using the CA certificate above and add user
                   6067: certificate extensions:
                   6068: .Bd -literal -offset indent
                   6069: $ openssl x509 -req -in req.pem -extfile openssl.cnf -extensions \e
                   6070:        v3_usr -CA cacert.pem -CAkey key.pem -CAcreateserial
                   6071: .Ed
                   6072: .Pp
                   6073: Set a certificate to be trusted for SSL
                   6074: client use and set its alias to
                   6075: .Qq Steve's Class 1 CA :
                   6076: .Bd -literal -offset indent
                   6077: $ openssl x509 -in cert.pem -addtrust clientAuth \e
                   6078:        -setalias "Steve's Class 1 CA" -out trust.pem
                   6079: .Ed
                   6080: .Sh X509 NOTES
                   6081: The PEM format uses the header and footer lines:
                   6082: .Bd -unfilled -offset indent
                   6083: -----BEGIN CERTIFICATE-----
                   6084: -----END CERTIFICATE-----
                   6085: .Ed
                   6086: .Pp
                   6087: It will also handle files containing:
                   6088: .Bd -unfilled -offset indent
                   6089: -----BEGIN X509 CERTIFICATE-----
                   6090: -----END X509 CERTIFICATE-----
                   6091: .Ed
                   6092: .Pp
                   6093: Trusted certificates have the lines:
                   6094: .Bd -unfilled -offset indent
                   6095: -----BEGIN TRUSTED CERTIFICATE-----
                   6096: -----END TRUSTED CERTIFICATE-----
                   6097: .Ed
                   6098: .Pp
                   6099: The conversion to UTF8 format used with the name options assumes that
                   6100: T61Strings use the ISO 8859-1 character set.
                   6101: This is wrong, but Netscape and MSIE do this, as do many certificates.
                   6102: So although this is incorrect
                   6103: it is more likely to display the majority of certificates correctly.
                   6104: .Pp
                   6105: The
                   6106: .Fl fingerprint
                   6107: option takes the digest of the DER-encoded certificate.
                   6108: This is commonly called a
                   6109: .Qq fingerprint .
                   6110: Because of the nature of message digests, the fingerprint of a certificate
                   6111: is unique to that certificate and two certificates with the same fingerprint
                   6112: can be considered to be the same.
                   6113: .Pp
                   6114: The Netscape fingerprint uses MD5, whereas MSIE uses SHA1.
                   6115: .Pp
                   6116: The
                   6117: .Fl email
                   6118: option searches the subject name and the subject alternative
                   6119: name extension.
                   6120: Only unique email addresses will be printed out: it will
                   6121: not print the same address more than once.
                   6122: .Sh X.509 CERTIFICATE EXTENSIONS
                   6123: The
                   6124: .Fl purpose
                   6125: option checks the certificate extensions and determines
                   6126: what the certificate can be used for.
                   6127: The actual checks done are rather
                   6128: complex and include various hacks and workarounds to handle broken
                   6129: certificates and software.
                   6130: .Pp
                   6131: The same code is used when verifying untrusted certificates in chains,
                   6132: so this section is useful if a chain is rejected by the verify code.
                   6133: .Pp
                   6134: The
                   6135: .Em basicConstraints
                   6136: extension CA flag is used to determine whether the
                   6137: certificate can be used as a CA.
                   6138: If the CA flag is true, it is a CA;
                   6139: if the CA flag is false, it is not a CA.
                   6140: .Em All
                   6141: CAs should have the CA flag set to true.
                   6142: .Pp
                   6143: If the
                   6144: .Em basicConstraints
                   6145: extension is absent, then the certificate is
                   6146: considered to be a
                   6147: .Qq possible CA ;
                   6148: other extensions are checked according to the intended use of the certificate.
                   6149: A warning is given in this case because the certificate should really not
                   6150: be regarded as a CA: however,
                   6151: it is allowed to be a CA to work around some broken software.
                   6152: .Pp
                   6153: If the certificate is a V1 certificate
                   6154: .Pq and thus has no extensions
                   6155: and it is self-signed, it is also assumed to be a CA but a warning is again
                   6156: given: this is to work around the problem of Verisign roots which are V1
                   6157: self-signed certificates.
                   6158: .Pp
                   6159: If the
                   6160: .Em keyUsage
                   6161: extension is present, then additional restraints are
                   6162: made on the uses of the certificate.
                   6163: A CA certificate
                   6164: .Em must
                   6165: have the
                   6166: .Em keyCertSign
                   6167: bit set if the
                   6168: .Em keyUsage
                   6169: extension is present.
                   6170: .Pp
                   6171: The extended key usage extension places additional restrictions on the
                   6172: certificate uses.
                   6173: If this extension is present
                   6174: .Pq whether critical or not ,
                   6175: the key can only be used for the purposes specified.
                   6176: .Pp
                   6177: A complete description of each test is given below.
                   6178: The comments about
                   6179: .Em basicConstraints
                   6180: and
                   6181: .Em keyUsage
                   6182: and V1 certificates above apply to
                   6183: .Em all
                   6184: CA certificates.
                   6185: .Bl -tag -width "XXXX"
                   6186: .It Ar SSL Client
                   6187: The extended key usage extension must be absent or include the
                   6188: .Qq web client authentication
                   6189: OID.
                   6190: .Ar keyUsage
                   6191: must be absent or it must have the
                   6192: .Em digitalSignature
                   6193: bit set.
                   6194: Netscape certificate type must be absent or it must have the SSL
                   6195: client bit set.
                   6196: .It Ar SSL Client CA
                   6197: The extended key usage extension must be absent or include the
                   6198: .Qq web client authentication
                   6199: OID.
                   6200: Netscape certificate type must be absent or it must have the SSL CA
                   6201: bit set: this is used as a work around if the
                   6202: .Em basicConstraints
                   6203: extension is absent.
                   6204: .It Ar SSL Server
                   6205: The extended key usage extension must be absent or include the
                   6206: .Qq web server authentication
                   6207: and/or one of the SGC OIDs.
                   6208: .Em keyUsage
                   6209: must be absent or it must have the
                   6210: .Em digitalSignature
                   6211: set, the
                   6212: .Em keyEncipherment
                   6213: set, or both bits set.
                   6214: Netscape certificate type must be absent or have the SSL server bit set.
                   6215: .It Ar SSL Server CA
                   6216: The extended key usage extension must be absent or include the
                   6217: .Qq web server authentication
                   6218: and/or one of the SGC OIDs.
                   6219: Netscape certificate type must be absent or the SSL CA
                   6220: bit must be set: this is used as a work around if the
                   6221: .Em basicConstraints
                   6222: extension is absent.
                   6223: .It Ar Netscape SSL Server
                   6224: For Netscape SSL clients to connect to an SSL server; it must have the
                   6225: .Em keyEncipherment
                   6226: bit set if the
                   6227: .Em keyUsage
                   6228: extension is present.
                   6229: This isn't always valid because some cipher suites use the key for
                   6230: digital signing.
                   6231: Otherwise it is the same as a normal SSL server.
                   6232: .It Ar Common S/MIME Client Tests
                   6233: The extended key usage extension must be absent or include the
                   6234: .Qq email protection
                   6235: OID.
                   6236: Netscape certificate type must be absent or should have the
                   6237: .Em S/MIME
                   6238: bit set.
                   6239: If the
                   6240: .Em S/MIME
                   6241: bit is not set in Netscape certificate type, then the SSL
                   6242: client bit is tolerated as an alternative but a warning is shown:
                   6243: this is because some Verisign certificates don't set the
                   6244: .Em S/MIME
                   6245: bit.
                   6246: .It Ar S/MIME Signing
                   6247: In addition to the common
                   6248: .Em S/MIME
                   6249: client tests, the
                   6250: .Em digitalSignature
                   6251: bit must be set if the
                   6252: .Em keyUsage
                   6253: extension is present.
                   6254: .It Ar S/MIME Encryption
                   6255: In addition to the common
                   6256: .Em S/MIME
                   6257: tests, the
                   6258: .Em keyEncipherment
                   6259: bit must be set if the
                   6260: .Em keyUsage
                   6261: extension is present.
                   6262: .It Ar S/MIME CA
                   6263: The extended key usage extension must be absent or include the
                   6264: .Qq email protection
                   6265: OID.
                   6266: Netscape certificate type must be absent or must have the
                   6267: .Em S/MIME CA
                   6268: bit set: this is used as a work around if the
                   6269: .Em basicConstraints
                   6270: extension is absent.
                   6271: .It Ar CRL Signing
                   6272: The
                   6273: .Em keyUsage
                   6274: extension must be absent or it must have the
                   6275: .Em CRL
                   6276: signing bit set.
                   6277: .It Ar CRL Signing CA
                   6278: The normal CA tests apply.
                   6279: Except in this case the
                   6280: .Em basicConstraints
                   6281: extension must be present.
                   6282: .El
                   6283: .Sh X509 BUGS
                   6284: Extensions in certificates are not transferred to certificate requests and
                   6285: vice versa.
                   6286: .Pp
                   6287: It is possible to produce invalid certificates or requests by specifying the
                   6288: wrong private key or using inconsistent options in some cases: these should
                   6289: be checked.
                   6290: .Pp
                   6291: There should be options to explicitly set such things as start and end dates,
                   6292: rather than an offset from the current time.
                   6293: .Pp
                   6294: The code to implement the verify behaviour described in the
                   6295: .Sx X509 TRUST SETTINGS
                   6296: is currently being developed.
                   6297: It thus describes the intended behaviour rather than the current behaviour.
                   6298: It is hoped that it will represent reality in
                   6299: .Nm OpenSSL
                   6300: 0.9.5 and later.
                   6301: .Sh X509 HISTORY
                   6302: Before
                   6303: .Nm OpenSSL
                   6304: 0.9.8,
                   6305: the default digest for RSA keys was MD5.
                   6306: .Pp
                   6307: The hash algorithm used in the
                   6308: .Fl subject_hash
                   6309: and
                   6310: .Fl issuer_hash
                   6311: options before
                   6312: .Nm OpenSSL
                   6313: 1.0.0 was based on the deprecated MD5 algorithm and the encoding
                   6314: of the distinguished name.
                   6315: In
                   6316: .Nm OpenSSL
                   6317: 1.0.0 and later it is based on a canonical version of the DN using SHA1.
                   6318: This means that any directories using the old form
                   6319: must have their links rebuilt using
                   6320: .Ar c_rehash
                   6321: or similar.
1.38      jmc      6322: .Sh COMMON NOTATION
                   6323: Several commands share a common syntax,
                   6324: as detailed below.
                   6325: .Pp
                   6326: Password arguments, typically specified using
1.33      jmc      6327: .Fl passin
                   6328: and
                   6329: .Fl passout
1.38      jmc      6330: for input and output passwords,
                   6331: allow passwords to be obtained from a variety of sources.
                   6332: Both of these options take a single argument, described below.
1.33      jmc      6333: If no password argument is given and a password is required,
                   6334: then the user is prompted to enter one:
                   6335: this will typically be read from the current terminal with echoing turned off.
1.38      jmc      6336: .Bl -tag -width "pass:password" -offset indent
                   6337: .It Cm pass : Ns Ar password
1.33      jmc      6338: The actual password is
                   6339: .Ar password .
1.38      jmc      6340: Since the password is visible to utilities,
1.33      jmc      6341: this form should only be used where security is not important.
1.38      jmc      6342: .It Cm env : Ns Ar var
1.33      jmc      6343: Obtain the password from the environment variable
                   6344: .Ar var .
1.38      jmc      6345: Since the environment of other processes is visible,
                   6346: this option should be used with caution.
                   6347: .It Cm file : Ns Ar path
1.33      jmc      6348: The first line of
                   6349: .Ar path
                   6350: is the password.
                   6351: If the same
                   6352: .Ar path
                   6353: argument is supplied to
                   6354: .Fl passin
                   6355: and
                   6356: .Fl passout ,
                   6357: then the first line will be used for the input password and the next line
                   6358: for the output password.
                   6359: .Ar path
                   6360: need not refer to a regular file:
                   6361: it could, for example, refer to a device or named pipe.
1.38      jmc      6362: .It Cm fd : Ns Ar number
1.33      jmc      6363: Read the password from the file descriptor
                   6364: .Ar number .
1.38      jmc      6365: This can be used to send the data via a pipe, for example.
                   6366: .It Cm stdin
1.33      jmc      6367: Read the password from standard input.
1.35      jmc      6368: .El
1.38      jmc      6369: .Pp
1.64      jmc      6370: Input/output formats,
1.38      jmc      6371: typically specified using
                   6372: .Fl inform
                   6373: and
                   6374: .Fl outform ,
1.64      jmc      6375: indicate the format being read from or written to.
1.38      jmc      6376: The argument is case insensitive.
                   6377: .Pp
                   6378: .Bl -tag -width Ds -offset indent -compact
                   6379: .It Cm der
                   6380: Distinguished Encoding Rules (DER)
                   6381: is a binary format.
1.64      jmc      6382: .It Cm net
                   6383: Insecure legacy format.
1.38      jmc      6384: .It Cm pem
                   6385: Privacy Enhanced Mail (PEM)
                   6386: is base64-encoded.
1.70      jmc      6387: .It Cm smime
                   6388: An SMIME format message.
1.38      jmc      6389: .It Cm txt
                   6390: Plain ASCII text.
                   6391: .El
1.35      jmc      6392: .Sh ENVIRONMENT
                   6393: The following environment variables affect the execution of
                   6394: .Nm openssl :
1.38      jmc      6395: .Bl -tag -width "/etc/ssl/openssl.cnf"
1.35      jmc      6396: .It Ev OPENSSL_CONF
                   6397: The location of the master configuration file.
1.33      jmc      6398: .El
1.1       jsing    6399: .\"
                   6400: .\" FILES
                   6401: .\"
                   6402: .Sh FILES
                   6403: .Bl -tag -width "/etc/ssl/openssl.cnf" -compact
1.17      sobrado  6404: .It Pa /etc/ssl/
1.1       jsing    6405: Default config directory for
                   6406: .Nm openssl .
1.17      sobrado  6407: .It Pa /etc/ssl/lib/
1.1       jsing    6408: Unused.
1.17      sobrado  6409: .It Pa /etc/ssl/private/
1.1       jsing    6410: Default private key directory.
1.17      sobrado  6411: .It Pa /etc/ssl/openssl.cnf
1.1       jsing    6412: Default configuration file for
                   6413: .Nm openssl .
1.17      sobrado  6414: .It Pa /etc/ssl/x509v3.cnf
1.1       jsing    6415: Default configuration file for
                   6416: .Nm x509
                   6417: certificates.
                   6418: .El
                   6419: .\"
                   6420: .\" SEE ALSO
                   6421: .\"
                   6422: .Sh SEE ALSO
1.74      jmc      6423: .Xr acme-client 1 ,
1.26      jmc      6424: .Xr nc 1 ,
1.1       jsing    6425: .Xr ssl 8 ,
                   6426: .Xr starttls 8
                   6427: .Sh STANDARDS
                   6428: .Rs
                   6429: .%D February 1995
                   6430: .%Q Netscape Communications Corp.
                   6431: .%T The SSL Protocol
                   6432: .Re
                   6433: .Pp
                   6434: .Rs
                   6435: .%D November 1996
                   6436: .%Q Netscape Communications Corp.
                   6437: .%T The SSL 3.0 Protocol
                   6438: .Re
                   6439: .Pp
                   6440: .Rs
                   6441: .%A T. Dierks
                   6442: .%A C. Allen
                   6443: .%D January 1999
                   6444: .%R RFC 2246
                   6445: .%T The TLS Protocol Version 1.0
                   6446: .Re
                   6447: .Pp
                   6448: .Rs
                   6449: .%A M. Wahl
                   6450: .%A S. Killie
                   6451: .%A T. Howes
                   6452: .%D December 1997
                   6453: .%R RFC 2253
                   6454: .%T Lightweight Directory Access Protocol (v3): UTF-8 String Representation of Distinguished Names
                   6455: .Re
                   6456: .Pp
                   6457: .Rs
                   6458: .%A B. Kaliski
                   6459: .%D March 1998
                   6460: .%R RFC 2315
                   6461: .%T PKCS #7: Cryptographic Message Syntax Version 1.5
                   6462: .Re
                   6463: .Pp
                   6464: .Rs
                   6465: .%A R. Housley
                   6466: .%A W. Ford
                   6467: .%A W. Polk
                   6468: .%A D. Solo
                   6469: .%D January 1999
                   6470: .%R RFC 2459
                   6471: .%T Internet X.509 Public Key Infrastructure Certificate and CRL Profile
                   6472: .Re
                   6473: .Pp
                   6474: .Rs
                   6475: .%A M. Myers
                   6476: .%A R. Ankney
                   6477: .%A A. Malpani
                   6478: .%A S. Galperin
                   6479: .%A C. Adams
                   6480: .%D June 1999
                   6481: .%R RFC 2560
                   6482: .%T X.509 Internet Public Key Infrastructure Online Certificate Status Protocol \(en OCSP
                   6483: .Re
                   6484: .Pp
                   6485: .Rs
                   6486: .%A R. Housley
                   6487: .%D June 1999
                   6488: .%R RFC 2630
                   6489: .%T Cryptographic Message Syntax
                   6490: .Re
                   6491: .Pp
                   6492: .Rs
                   6493: .%A P. Chown
                   6494: .%D June 2002
                   6495: .%R RFC 3268
1.24      jmc      6496: .%T Advanced Encryption Standard (AES) Ciphersuites for Transport Layer Security (TLS)
1.1       jsing    6497: .Re