Annotation of src/usr.bin/encrypt/encrypt.1, Revision 1.17
1.17 ! millert 1: .\" $OpenBSD: encrypt.1,v 1.16 2000/11/09 17:52:07 aaron Exp $
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1.10 alex 26: .Dd May 18, 1999
1.1 downsj 27: .Dt ENCRYPT 1
1.11 aaron 28: .Os
1.1 downsj 29: .Sh NAME
30: .Nm encrypt
1.4 downsj 31: .Nd encrypt passwords from the command line or standard input
1.1 downsj 32: .Sh SYNOPSIS
33: .Nm encrypt
1.4 downsj 34: .Op Fl k
1.5 provos 35: .Op Fl b Ar rounds
1.1 downsj 36: .Op Fl m
37: .Op Fl s Ar salt
1.10 alex 38: .Op Fl p | Ar string
1.4 downsj 39: .Nm makekey
1.1 downsj 40: .Sh DESCRIPTION
1.12 aaron 41: .Nm
1.1 downsj 42: prints the encrypted form of
43: .Ar string
1.15 aaron 44: to the standard output.
45: This is mostly useful for encrypting passwords from within scripts.
1.1 downsj 46: .Pp
1.13 aaron 47: The options are as follows:
1.16 aaron 48: .Bl -tag -width Ds
1.4 downsj 49: .It Fl k
50: Run in
51: .Nm makekey
52: compatible mode; a single combined key and salt are read from standard
53: input and the DES encrypted result is written to standard output without a
54: terminating newline.
1.5 provos 55: .It Fl b Ar rounds
56: Encrypt the string using Blowfish hashing with the specified
57: .Ar rounds .
1.1 downsj 58: .It Fl m
59: Encrypt the string using MD5.
1.10 alex 60: .It Fl p
61: Prompt for a single string with echo turned off.
1.1 downsj 62: .It Fl s Ar salt
63: Encrypt the string using DES, with the specified
64: .Ar salt .
65: .El
66: .Pp
67: If no
68: .Ar string
69: is specified,
1.12 aaron 70: .Nm
1.7 deraadt 71: reads one string per line from standard input, encrypting each one
1.14 aaron 72: with the chosen algorithm from above.
1.17 ! millert 73: In case that no specific algorithm was given as a command line option,
! 74: the algorithm specified in the default class in
! 75: .Pa /etc/login.conf
! 76: will be used.
1.5 provos 77: .Pp
78: For MD5 and Blowfish a new random salt is automatically generated for each
79: password.
80: .Pp
1.11 aaron 81: Specifying the
1.3 downsj 82: .Ar string
83: on the command line should be discouraged; using the
84: standard input is more secure.
1.5 provos 85: .Sh FILES
1.17 ! millert 86: .Bl -tag -width /etc/login.conf -compact
! 87: .It Pa /etc/login.conf
1.5 provos 88: .El
1.1 downsj 89: .Sh SEE ALSO
1.5 provos 90: .Xr crypt 3 ,
1.17 ! millert 91: .Xr login.conf 5
1.1 downsj 92: .Sh HISTORY
1.12 aaron 93: .Nm
1.6 millert 94: first appeared in
95: .Ox 1.2 .
1.4 downsj 96: .Pp
97: A
98: .Nm makekey
1.11 aaron 99: command appeared in
1.4 downsj 100: .At v7 .