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1.13 ! miod 1: /* $OpenBSD: req.c,v 1.12 2015/10/17 15:00:11 doug Exp $ */
1.1 jsing 2: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3: * All rights reserved.
4: *
5: * This package is an SSL implementation written
6: * by Eric Young (eay@cryptsoft.com).
7: * The implementation was written so as to conform with Netscapes SSL.
8: *
9: * This library is free for commercial and non-commercial use as long as
10: * the following conditions are aheared to. The following conditions
11: * apply to all code found in this distribution, be it the RC4, RSA,
12: * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13: * included with this distribution is covered by the same copyright terms
14: * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15: *
16: * Copyright remains Eric Young's, and as such any Copyright notices in
17: * the code are not to be removed.
18: * If this package is used in a product, Eric Young should be given attribution
19: * as the author of the parts of the library used.
20: * This can be in the form of a textual message at program startup or
21: * in documentation (online or textual) provided with the package.
22: *
23: * Redistribution and use in source and binary forms, with or without
24: * modification, are permitted provided that the following conditions
25: * are met:
26: * 1. Redistributions of source code must retain the copyright
27: * notice, this list of conditions and the following disclaimer.
28: * 2. Redistributions in binary form must reproduce the above copyright
29: * notice, this list of conditions and the following disclaimer in the
30: * documentation and/or other materials provided with the distribution.
31: * 3. All advertising materials mentioning features or use of this software
32: * must display the following acknowledgement:
33: * "This product includes cryptographic software written by
34: * Eric Young (eay@cryptsoft.com)"
35: * The word 'cryptographic' can be left out if the rouines from the library
36: * being used are not cryptographic related :-).
37: * 4. If you include any Windows specific code (or a derivative thereof) from
38: * the apps directory (application code) you must include an acknowledgement:
39: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40: *
41: * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51: * SUCH DAMAGE.
52: *
53: * The licence and distribution terms for any publically available version or
54: * derivative of this code cannot be changed. i.e. this code cannot simply be
55: * copied and put under another distribution licence
56: * [including the GNU Public Licence.]
57: */
58:
59: /* Until the key-gen callbacks are modified to use newer prototypes, we allow
60: * deprecated functions for openssl-internal code */
61: #ifdef OPENSSL_NO_DEPRECATED
62: #undef OPENSSL_NO_DEPRECATED
63: #endif
64:
65: #include <stdio.h>
66: #include <stdlib.h>
67: #include <limits.h>
68: #include <string.h>
69: #include <time.h>
70:
71: #include "apps.h"
72:
73: #include <openssl/asn1.h>
74: #include <openssl/bio.h>
75: #include <openssl/bn.h>
76: #include <openssl/conf.h>
77: #include <openssl/err.h>
78: #include <openssl/evp.h>
79: #include <openssl/objects.h>
80: #include <openssl/pem.h>
81: #include <openssl/x509.h>
82: #include <openssl/x509v3.h>
83:
84: #include <openssl/dsa.h>
85:
86: #include <openssl/rsa.h>
87:
88: #define SECTION "req"
89:
90: #define BITS "default_bits"
91: #define KEYFILE "default_keyfile"
92: #define PROMPT "prompt"
93: #define DISTINGUISHED_NAME "distinguished_name"
94: #define ATTRIBUTES "attributes"
95: #define V3_EXTENSIONS "x509_extensions"
96: #define REQ_EXTENSIONS "req_extensions"
97: #define STRING_MASK "string_mask"
98: #define UTF8_IN "utf8"
99:
1.3 sthen 100: #define DEFAULT_KEY_LENGTH 2048
1.1 jsing 101: #define MIN_KEY_LENGTH 384
102:
103:
104: /* -inform arg - input format - default PEM (DER or PEM)
105: * -outform arg - output format - default PEM
106: * -in arg - input file - default stdin
107: * -out arg - output file - default stdout
108: * -verify - check request signature
109: * -noout - don't print stuff out.
110: * -text - print out human readable text.
111: * -nodes - no des encryption
112: * -config file - Load configuration file.
113: * -key file - make a request using key in file (or use it for verification).
114: * -keyform arg - key file format.
115: * -newkey - make a key and a request.
116: * -modulus - print RSA modulus.
117: * -pubkey - output Public Key.
118: * -x509 - output a self signed X509 structure instead.
119: * -asn1-kludge - output new certificate request in a format that some CA's
120: * require. This format is wrong
121: */
122:
1.13 ! miod 123: static int make_REQ(X509_REQ * req, EVP_PKEY * pkey, char *dn, int multirdn,
1.1 jsing 124: int attribs, unsigned long chtype);
125: static int build_subject(X509_REQ * req, char *subj, unsigned long chtype,
126: int multirdn);
127: static int prompt_info(X509_REQ * req,
128: STACK_OF(CONF_VALUE) * dn_sk, char *dn_sect,
129: STACK_OF(CONF_VALUE) * attr_sk, char *attr_sect, int attribs,
130: unsigned long chtype);
131: static int auto_info(X509_REQ * req, STACK_OF(CONF_VALUE) * sk,
132: STACK_OF(CONF_VALUE) * attr, int attribs,
133: unsigned long chtype);
134: static int add_attribute_object(X509_REQ * req, char *text, const char *def,
135: char *value, int nid, int n_min,
136: int n_max, unsigned long chtype);
137: static int add_DN_object(X509_NAME * n, char *text, const char *def, char *value,
138: int nid, int n_min, int n_max, unsigned long chtype, int mval);
139: static int genpkey_cb(EVP_PKEY_CTX * ctx);
140: static int req_check_len(int len, int n_min, int n_max);
141: static int check_end(const char *str, const char *end);
142: static EVP_PKEY_CTX *set_keygen_ctx(BIO * err, const char *gstr, int *pkey_type,
1.7 bcook 143: long *pkeylen, char **palgnam);
1.1 jsing 144: static CONF *req_conf = NULL;
145: static int batch = 0;
146:
147: int
148: req_main(int argc, char **argv)
149: {
150: unsigned long nmflag = 0, reqflag = 0;
151: int ex = 1, x509 = 0, days = 30;
152: X509 *x509ss = NULL;
153: X509_REQ *req = NULL;
154: EVP_PKEY_CTX *genctx = NULL;
155: const char *keyalg = NULL;
156: char *keyalgstr = NULL;
157: STACK_OF(OPENSSL_STRING) * pkeyopts = NULL, *sigopts = NULL;
158: EVP_PKEY *pkey = NULL;
159: int i = 0, badops = 0, newreq = 0, verbose = 0, pkey_type = -1;
160: long newkey = -1;
161: BIO *in = NULL, *out = NULL;
162: int informat, outformat, verify = 0, noout = 0, text = 0, keyform = FORMAT_PEM;
163: int nodes = 0, kludge = 0, newhdr = 0, subject = 0, pubkey = 0;
164: char *infile, *outfile, *prog, *keyfile = NULL, *template = NULL,
165: *keyout = NULL;
166: char *extensions = NULL;
167: char *req_exts = NULL;
168: const EVP_CIPHER *cipher = NULL;
169: ASN1_INTEGER *serial = NULL;
170: int modulus = 0;
171: char *passargin = NULL, *passargout = NULL;
172: char *passin = NULL, *passout = NULL;
173: char *p;
174: char *subj = NULL;
175: int multirdn = 0;
176: const EVP_MD *md_alg = NULL, *digest = NULL;
177: unsigned long chtype = MBSTRING_ASC;
1.10 doug 178:
179: if (single_execution) {
1.12 doug 180: if (pledge("stdio rpath wpath cpath tty", NULL) == -1) {
1.10 doug 181: perror("pledge");
1.12 doug 182: exit(1);
183: }
1.10 doug 184: }
1.1 jsing 185:
186: req_conf = NULL;
1.3 sthen 187: cipher = EVP_aes_256_cbc();
188: digest = EVP_sha256();
1.1 jsing 189:
190: infile = NULL;
191: outfile = NULL;
192: informat = FORMAT_PEM;
193: outformat = FORMAT_PEM;
194:
195: prog = argv[0];
196: argc--;
197: argv++;
198: while (argc >= 1) {
199: if (strcmp(*argv, "-inform") == 0) {
200: if (--argc < 1)
201: goto bad;
202: informat = str2fmt(*(++argv));
203: } else if (strcmp(*argv, "-outform") == 0) {
204: if (--argc < 1)
205: goto bad;
206: outformat = str2fmt(*(++argv));
207: }
208: else if (strcmp(*argv, "-key") == 0) {
209: if (--argc < 1)
210: goto bad;
211: keyfile = *(++argv);
212: } else if (strcmp(*argv, "-pubkey") == 0) {
213: pubkey = 1;
214: } else if (strcmp(*argv, "-new") == 0) {
215: newreq = 1;
216: } else if (strcmp(*argv, "-config") == 0) {
217: if (--argc < 1)
218: goto bad;
219: template = *(++argv);
220: } else if (strcmp(*argv, "-keyform") == 0) {
221: if (--argc < 1)
222: goto bad;
223: keyform = str2fmt(*(++argv));
224: } else if (strcmp(*argv, "-in") == 0) {
225: if (--argc < 1)
226: goto bad;
227: infile = *(++argv);
228: } else if (strcmp(*argv, "-out") == 0) {
229: if (--argc < 1)
230: goto bad;
231: outfile = *(++argv);
232: } else if (strcmp(*argv, "-keyout") == 0) {
233: if (--argc < 1)
234: goto bad;
235: keyout = *(++argv);
236: } else if (strcmp(*argv, "-passin") == 0) {
237: if (--argc < 1)
238: goto bad;
239: passargin = *(++argv);
240: } else if (strcmp(*argv, "-passout") == 0) {
241: if (--argc < 1)
242: goto bad;
243: passargout = *(++argv);
244: } else if (strcmp(*argv, "-newkey") == 0) {
245: if (--argc < 1)
246: goto bad;
247: keyalg = *(++argv);
248: newreq = 1;
249: } else if (strcmp(*argv, "-pkeyopt") == 0) {
250: if (--argc < 1)
251: goto bad;
252: if (!pkeyopts)
253: pkeyopts = sk_OPENSSL_STRING_new_null();
254: if (!pkeyopts || !sk_OPENSSL_STRING_push(pkeyopts, *(++argv)))
255: goto bad;
256: } else if (strcmp(*argv, "-sigopt") == 0) {
257: if (--argc < 1)
258: goto bad;
259: if (!sigopts)
260: sigopts = sk_OPENSSL_STRING_new_null();
261: if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, *(++argv)))
262: goto bad;
263: } else if (strcmp(*argv, "-batch") == 0)
264: batch = 1;
265: else if (strcmp(*argv, "-newhdr") == 0)
266: newhdr = 1;
267: else if (strcmp(*argv, "-modulus") == 0)
268: modulus = 1;
269: else if (strcmp(*argv, "-verify") == 0)
270: verify = 1;
271: else if (strcmp(*argv, "-nodes") == 0)
272: nodes = 1;
273: else if (strcmp(*argv, "-noout") == 0)
274: noout = 1;
275: else if (strcmp(*argv, "-verbose") == 0)
276: verbose = 1;
277: else if (strcmp(*argv, "-utf8") == 0)
278: chtype = MBSTRING_UTF8;
279: else if (strcmp(*argv, "-nameopt") == 0) {
280: if (--argc < 1)
281: goto bad;
282: if (!set_name_ex(&nmflag, *(++argv)))
283: goto bad;
284: } else if (strcmp(*argv, "-reqopt") == 0) {
285: if (--argc < 1)
286: goto bad;
287: if (!set_cert_ex(&reqflag, *(++argv)))
288: goto bad;
289: } else if (strcmp(*argv, "-subject") == 0)
290: subject = 1;
291: else if (strcmp(*argv, "-text") == 0)
292: text = 1;
293: else if (strcmp(*argv, "-x509") == 0)
294: x509 = 1;
295: else if (strcmp(*argv, "-asn1-kludge") == 0)
296: kludge = 1;
297: else if (strcmp(*argv, "-no-asn1-kludge") == 0)
298: kludge = 0;
299: else if (strcmp(*argv, "-subj") == 0) {
300: if (--argc < 1)
301: goto bad;
302: subj = *(++argv);
303: } else if (strcmp(*argv, "-multivalue-rdn") == 0)
304: multirdn = 1;
305: else if (strcmp(*argv, "-days") == 0) {
306: const char *errstr;
307:
308: if (--argc < 1)
309: goto bad;
310: days = strtonum(*(++argv), 1, INT_MAX, &errstr);
311: if (errstr) {
312: BIO_printf(bio_err, "bad -days %s, using 0: %s\n",
313: *argv, errstr);
314: days = 30;
315: }
316: } else if (strcmp(*argv, "-set_serial") == 0) {
317: if (--argc < 1)
318: goto bad;
319: serial = s2i_ASN1_INTEGER(NULL, *(++argv));
320: if (!serial)
321: goto bad;
322: } else if (strcmp(*argv, "-extensions") == 0) {
323: if (--argc < 1)
324: goto bad;
325: extensions = *(++argv);
326: } else if (strcmp(*argv, "-reqexts") == 0) {
327: if (--argc < 1)
328: goto bad;
329: req_exts = *(++argv);
330: } else if ((md_alg = EVP_get_digestbyname(&((*argv)[1]))) != NULL) {
331: /* ok */
332: digest = md_alg;
333: } else {
334: BIO_printf(bio_err, "unknown option %s\n", *argv);
335: badops = 1;
336: break;
337: }
338: argc--;
339: argv++;
340: }
341:
342: if (badops) {
343: bad:
344: BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog);
345: BIO_printf(bio_err, "where options are\n");
346: BIO_printf(bio_err, " -inform arg input format - DER or PEM\n");
347: BIO_printf(bio_err, " -outform arg output format - DER or PEM\n");
348: BIO_printf(bio_err, " -in arg input file\n");
349: BIO_printf(bio_err, " -out arg output file\n");
350: BIO_printf(bio_err, " -text text form of request\n");
351: BIO_printf(bio_err, " -pubkey output public key\n");
352: BIO_printf(bio_err, " -noout do not output REQ\n");
353: BIO_printf(bio_err, " -verify verify signature on REQ\n");
354: BIO_printf(bio_err, " -modulus RSA modulus\n");
355: BIO_printf(bio_err, " -nodes don't encrypt the output key\n");
356: BIO_printf(bio_err, " -subject output the request's subject\n");
357: BIO_printf(bio_err, " -passin private key password source\n");
358: BIO_printf(bio_err, " -key file use the private key contained in file\n");
359: BIO_printf(bio_err, " -keyform arg key file format\n");
360: BIO_printf(bio_err, " -keyout arg file to send the key to\n");
361: BIO_printf(bio_err, " -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
362: BIO_printf(bio_err, " -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
363: BIO_printf(bio_err, " -newkey ec:file generate a new EC key, parameters taken from CA in 'file'\n");
1.9 doug 364: BIO_printf(bio_err, " -[digest] Digest to sign with (md5, sha1, md4)\n");
1.1 jsing 365: BIO_printf(bio_err, " -config file request template file.\n");
366: BIO_printf(bio_err, " -subj arg set or modify request subject\n");
367: BIO_printf(bio_err, " -multivalue-rdn enable support for multivalued RDNs\n");
368: BIO_printf(bio_err, " -new new request.\n");
369: BIO_printf(bio_err, " -batch do not ask anything during request generation\n");
370: BIO_printf(bio_err, " -x509 output a x509 structure instead of a cert. req.\n");
371: BIO_printf(bio_err, " -days number of days a certificate generated by -x509 is valid for.\n");
372: BIO_printf(bio_err, " -set_serial serial number to use for a certificate generated by -x509.\n");
373: BIO_printf(bio_err, " -newhdr output \"NEW\" in the header lines\n");
374: BIO_printf(bio_err, " -asn1-kludge Output the 'request' in a format that is wrong but some CA's\n");
375: BIO_printf(bio_err, " have been reported as requiring\n");
376: BIO_printf(bio_err, " -extensions .. specify certificate extension section (override value in config file)\n");
377: BIO_printf(bio_err, " -reqexts .. specify request extension section (override value in config file)\n");
378: BIO_printf(bio_err, " -utf8 input characters are UTF8 (default ASCII)\n");
379: BIO_printf(bio_err, " -nameopt arg - various certificate name options\n");
380: BIO_printf(bio_err, " -reqopt arg - various request text options\n\n");
381: goto end;
382: }
1.2 jsing 383:
1.1 jsing 384: if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
385: BIO_printf(bio_err, "Error getting passwords\n");
386: goto end;
387: }
388: if (template != NULL) {
389: long errline = -1;
390:
391: if (verbose)
392: BIO_printf(bio_err, "Using configuration from %s\n", template);
393: req_conf = NCONF_new(NULL);
394: i = NCONF_load(req_conf, template, &errline);
395: if (i == 0) {
396: BIO_printf(bio_err, "error on line %ld of %s\n", errline, template);
397: goto end;
398: }
399: } else {
400: req_conf = config;
401:
402: if (req_conf == NULL) {
403: BIO_printf(bio_err, "Unable to load config info from %s\n", default_config_file);
404: if (newreq)
405: goto end;
406: } else if (verbose)
407: BIO_printf(bio_err, "Using configuration from %s\n",
408: default_config_file);
409: }
410:
411: if (req_conf != NULL) {
412: if (!load_config(bio_err, req_conf))
413: goto end;
414: p = NCONF_get_string(req_conf, NULL, "oid_file");
415: if (p == NULL)
416: ERR_clear_error();
417: if (p != NULL) {
418: BIO *oid_bio;
419:
420: oid_bio = BIO_new_file(p, "r");
421: if (oid_bio == NULL) {
422: /*
423: BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
424: ERR_print_errors(bio_err);
425: */
426: } else {
427: OBJ_create_objects(oid_bio);
428: BIO_free(oid_bio);
429: }
430: }
431: }
432: if (!add_oid_section(bio_err, req_conf))
433: goto end;
434:
435: if (md_alg == NULL) {
436: p = NCONF_get_string(req_conf, SECTION, "default_md");
437: if (p == NULL)
438: ERR_clear_error();
439: if (p != NULL) {
440: if ((md_alg = EVP_get_digestbyname(p)) != NULL)
441: digest = md_alg;
442: }
443: }
444: if (!extensions) {
445: extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
446: if (!extensions)
447: ERR_clear_error();
448: }
449: if (extensions) {
450: /* Check syntax of file */
451: X509V3_CTX ctx;
452: X509V3_set_ctx_test(&ctx);
453: X509V3_set_nconf(&ctx, req_conf);
454: if (!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) {
455: BIO_printf(bio_err,
456: "Error Loading extension section %s\n", extensions);
457: goto end;
458: }
459: }
460: if (!passin) {
461: passin = NCONF_get_string(req_conf, SECTION, "input_password");
462: if (!passin)
463: ERR_clear_error();
464: }
465: if (!passout) {
466: passout = NCONF_get_string(req_conf, SECTION, "output_password");
467: if (!passout)
468: ERR_clear_error();
469: }
470: p = NCONF_get_string(req_conf, SECTION, STRING_MASK);
471: if (!p)
472: ERR_clear_error();
473:
474: if (p && !ASN1_STRING_set_default_mask_asc(p)) {
475: BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
476: goto end;
477: }
478: if (chtype != MBSTRING_UTF8) {
479: p = NCONF_get_string(req_conf, SECTION, UTF8_IN);
480: if (!p)
481: ERR_clear_error();
482: else if (!strcmp(p, "yes"))
483: chtype = MBSTRING_UTF8;
484: }
485: if (!req_exts) {
486: req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
487: if (!req_exts)
488: ERR_clear_error();
489: }
490: if (req_exts) {
491: /* Check syntax of file */
492: X509V3_CTX ctx;
493: X509V3_set_ctx_test(&ctx);
494: X509V3_set_nconf(&ctx, req_conf);
495: if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) {
496: BIO_printf(bio_err,
497: "Error Loading request extension section %s\n",
498: req_exts);
499: goto end;
500: }
501: }
502: in = BIO_new(BIO_s_file());
503: out = BIO_new(BIO_s_file());
504: if ((in == NULL) || (out == NULL))
505: goto end;
506:
507: if (keyfile != NULL) {
1.7 bcook 508: pkey = load_key(bio_err, keyfile, keyform, 0, passin,
1.1 jsing 509: "Private Key");
510: if (!pkey) {
511: /*
512: * load_key() has already printed an appropriate
513: * message
514: */
515: goto end;
516: }
517: }
518: if (newreq && (pkey == NULL)) {
519: if (!NCONF_get_number(req_conf, SECTION, BITS, &newkey)) {
520: newkey = DEFAULT_KEY_LENGTH;
521: }
522: if (keyalg) {
523: genctx = set_keygen_ctx(bio_err, keyalg, &pkey_type, &newkey,
1.7 bcook 524: &keyalgstr);
1.1 jsing 525: if (!genctx)
526: goto end;
527: }
528: if (newkey < MIN_KEY_LENGTH && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) {
529: BIO_printf(bio_err, "private key length is too short,\n");
530: BIO_printf(bio_err, "it needs to be at least %d bits, not %ld\n", MIN_KEY_LENGTH, newkey);
531: goto end;
532: }
533: if (!genctx) {
534: genctx = set_keygen_ctx(bio_err, NULL, &pkey_type, &newkey,
1.7 bcook 535: &keyalgstr);
1.1 jsing 536: if (!genctx)
537: goto end;
538: }
539: if (pkeyopts) {
540: char *genopt;
541: for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) {
542: genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
543: if (pkey_ctrl_string(genctx, genopt) <= 0) {
544: BIO_printf(bio_err,
545: "parameter error \"%s\"\n",
546: genopt);
547: ERR_print_errors(bio_err);
548: goto end;
549: }
550: }
551: }
552: BIO_printf(bio_err, "Generating a %ld bit %s private key\n",
553: newkey, keyalgstr);
554:
555: EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
556: EVP_PKEY_CTX_set_app_data(genctx, bio_err);
557:
558: if (EVP_PKEY_keygen(genctx, &pkey) <= 0) {
559: BIO_puts(bio_err, "Error Generating Key\n");
560: goto end;
561: }
562: EVP_PKEY_CTX_free(genctx);
563: genctx = NULL;
564:
565: if (keyout == NULL) {
566: keyout = NCONF_get_string(req_conf, SECTION, KEYFILE);
567: if (keyout == NULL)
568: ERR_clear_error();
569: }
570: if (keyout == NULL) {
571: BIO_printf(bio_err, "writing new private key to stdout\n");
572: BIO_set_fp(out, stdout, BIO_NOCLOSE);
573: } else {
574: BIO_printf(bio_err, "writing new private key to '%s'\n", keyout);
575: if (BIO_write_filename(out, keyout) <= 0) {
576: perror(keyout);
577: goto end;
578: }
579: }
580:
581: p = NCONF_get_string(req_conf, SECTION, "encrypt_rsa_key");
582: if (p == NULL) {
583: ERR_clear_error();
584: p = NCONF_get_string(req_conf, SECTION, "encrypt_key");
585: if (p == NULL)
586: ERR_clear_error();
587: }
588: if ((p != NULL) && (strcmp(p, "no") == 0))
589: cipher = NULL;
590: if (nodes)
591: cipher = NULL;
592:
593: i = 0;
594: loop:
595: if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
596: NULL, 0, NULL, passout)) {
597: if ((ERR_GET_REASON(ERR_peek_error()) ==
598: PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
599: ERR_clear_error();
600: i++;
601: goto loop;
602: }
603: goto end;
604: }
605: BIO_printf(bio_err, "-----\n");
606: }
607: if (!newreq) {
608: /*
609: * Since we are using a pre-existing certificate request, the
610: * kludge 'format' info should not be changed.
611: */
612: kludge = -1;
613: if (infile == NULL)
614: BIO_set_fp(in, stdin, BIO_NOCLOSE);
615: else {
616: if (BIO_read_filename(in, infile) <= 0) {
617: perror(infile);
618: goto end;
619: }
620: }
621:
622: if (informat == FORMAT_ASN1)
623: req = d2i_X509_REQ_bio(in, NULL);
624: else if (informat == FORMAT_PEM)
625: req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
626: else {
627: BIO_printf(bio_err, "bad input format specified for X509 request\n");
628: goto end;
629: }
630: if (req == NULL) {
631: BIO_printf(bio_err, "unable to load X509 request\n");
632: goto end;
633: }
634: }
635: if (newreq || x509) {
636: if (pkey == NULL) {
637: BIO_printf(bio_err, "you need to specify a private key\n");
638: goto end;
639: }
640: if (req == NULL) {
641: req = X509_REQ_new();
642: if (req == NULL) {
643: goto end;
644: }
645: i = make_REQ(req, pkey, subj, multirdn, !x509, chtype);
646: subj = NULL; /* done processing '-subj' option */
647: if ((kludge > 0) && !sk_X509_ATTRIBUTE_num(req->req_info->attributes)) {
648: sk_X509_ATTRIBUTE_free(req->req_info->attributes);
649: req->req_info->attributes = NULL;
650: }
651: if (!i) {
652: BIO_printf(bio_err, "problems making Certificate Request\n");
653: goto end;
654: }
655: }
656: if (x509) {
657: EVP_PKEY *tmppkey;
658: X509V3_CTX ext_ctx;
659: if ((x509ss = X509_new()) == NULL)
660: goto end;
661:
662: /* Set version to V3 */
663: if (extensions && !X509_set_version(x509ss, 2))
664: goto end;
665: if (serial) {
666: if (!X509_set_serialNumber(x509ss, serial))
667: goto end;
668: } else {
669: if (!rand_serial(NULL,
670: X509_get_serialNumber(x509ss)))
671: goto end;
672: }
673:
674: if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req)))
675: goto end;
676: if (!X509_gmtime_adj(X509_get_notBefore(x509ss), 0))
677: goto end;
678: if (!X509_time_adj_ex(X509_get_notAfter(x509ss), days, 0, NULL))
679: goto end;
680: if (!X509_set_subject_name(x509ss, X509_REQ_get_subject_name(req)))
681: goto end;
682: tmppkey = X509_REQ_get_pubkey(req);
683: if (!tmppkey || !X509_set_pubkey(x509ss, tmppkey))
684: goto end;
685: EVP_PKEY_free(tmppkey);
686:
687: /* Set up V3 context struct */
688:
689: X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
690: X509V3_set_nconf(&ext_ctx, req_conf);
691:
692: /* Add extensions */
693: if (extensions && !X509V3_EXT_add_nconf(req_conf,
694: &ext_ctx, extensions, x509ss)) {
695: BIO_printf(bio_err,
696: "Error Loading extension section %s\n",
697: extensions);
698: goto end;
699: }
700: i = do_X509_sign(bio_err, x509ss, pkey, digest, sigopts);
701: if (!i) {
702: ERR_print_errors(bio_err);
703: goto end;
704: }
705: } else {
706: X509V3_CTX ext_ctx;
707:
708: /* Set up V3 context struct */
709:
710: X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
711: X509V3_set_nconf(&ext_ctx, req_conf);
712:
713: /* Add extensions */
714: if (req_exts && !X509V3_EXT_REQ_add_nconf(req_conf,
715: &ext_ctx, req_exts, req)) {
716: BIO_printf(bio_err,
717: "Error Loading extension section %s\n",
718: req_exts);
719: goto end;
720: }
721: i = do_X509_REQ_sign(bio_err, req, pkey, digest, sigopts);
722: if (!i) {
723: ERR_print_errors(bio_err);
724: goto end;
725: }
726: }
727: }
728: if (subj && x509) {
729: BIO_printf(bio_err, "Cannot modifiy certificate subject\n");
730: goto end;
731: }
732: if (subj && !x509) {
733: if (verbose) {
734: BIO_printf(bio_err, "Modifying Request's Subject\n");
735: print_name(bio_err, "old subject=", X509_REQ_get_subject_name(req), nmflag);
736: }
737: if (build_subject(req, subj, chtype, multirdn) == 0) {
738: BIO_printf(bio_err, "ERROR: cannot modify subject\n");
739: ex = 1;
740: goto end;
741: }
742: req->req_info->enc.modified = 1;
743:
744: if (verbose) {
745: print_name(bio_err, "new subject=", X509_REQ_get_subject_name(req), nmflag);
746: }
747: }
748: if (verify && !x509) {
749: int tmp = 0;
750:
751: if (pkey == NULL) {
752: pkey = X509_REQ_get_pubkey(req);
753: tmp = 1;
754: if (pkey == NULL)
755: goto end;
756: }
757: i = X509_REQ_verify(req, pkey);
758: if (tmp) {
759: EVP_PKEY_free(pkey);
760: pkey = NULL;
761: }
762: if (i < 0) {
763: goto end;
764: } else if (i == 0) {
765: BIO_printf(bio_err, "verify failure\n");
766: ERR_print_errors(bio_err);
767: } else /* if (i > 0) */
768: BIO_printf(bio_err, "verify OK\n");
769: }
770: if (noout && !text && !modulus && !subject && !pubkey) {
771: ex = 0;
772: goto end;
773: }
774: if (outfile == NULL) {
775: BIO_set_fp(out, stdout, BIO_NOCLOSE);
776: } else {
777: if ((keyout != NULL) && (strcmp(outfile, keyout) == 0))
778: i = (int) BIO_append_filename(out, outfile);
779: else
780: i = (int) BIO_write_filename(out, outfile);
781: if (!i) {
782: perror(outfile);
783: goto end;
784: }
785: }
786:
787: if (pubkey) {
788: EVP_PKEY *tpubkey;
789: tpubkey = X509_REQ_get_pubkey(req);
790: if (tpubkey == NULL) {
791: BIO_printf(bio_err, "Error getting public key\n");
792: ERR_print_errors(bio_err);
793: goto end;
794: }
795: PEM_write_bio_PUBKEY(out, tpubkey);
796: EVP_PKEY_free(tpubkey);
797: }
798: if (text) {
799: if (x509)
800: X509_print_ex(out, x509ss, nmflag, reqflag);
801: else
802: X509_REQ_print_ex(out, req, nmflag, reqflag);
803: }
804: if (subject) {
805: if (x509)
806: print_name(out, "subject=", X509_get_subject_name(x509ss), nmflag);
807: else
808: print_name(out, "subject=", X509_REQ_get_subject_name(req), nmflag);
809: }
810: if (modulus) {
811: EVP_PKEY *tpubkey;
812:
813: if (x509)
814: tpubkey = X509_get_pubkey(x509ss);
815: else
816: tpubkey = X509_REQ_get_pubkey(req);
817: if (tpubkey == NULL) {
818: fprintf(stdout, "Modulus=unavailable\n");
819: goto end;
820: }
821: fprintf(stdout, "Modulus=");
822: if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA)
823: BN_print(out, tpubkey->pkey.rsa->n);
824: else
825: fprintf(stdout, "Wrong Algorithm type");
826: EVP_PKEY_free(tpubkey);
827: fprintf(stdout, "\n");
828: }
829: if (!noout && !x509) {
830: if (outformat == FORMAT_ASN1)
831: i = i2d_X509_REQ_bio(out, req);
832: else if (outformat == FORMAT_PEM) {
833: if (newhdr)
834: i = PEM_write_bio_X509_REQ_NEW(out, req);
835: else
836: i = PEM_write_bio_X509_REQ(out, req);
837: } else {
838: BIO_printf(bio_err, "bad output format specified for outfile\n");
839: goto end;
840: }
841: if (!i) {
842: BIO_printf(bio_err, "unable to write X509 request\n");
843: goto end;
844: }
845: }
846: if (!noout && x509 && (x509ss != NULL)) {
847: if (outformat == FORMAT_ASN1)
848: i = i2d_X509_bio(out, x509ss);
849: else if (outformat == FORMAT_PEM)
850: i = PEM_write_bio_X509(out, x509ss);
851: else {
852: BIO_printf(bio_err, "bad output format specified for outfile\n");
853: goto end;
854: }
855: if (!i) {
856: BIO_printf(bio_err, "unable to write X509 certificate\n");
857: goto end;
858: }
859: }
860: ex = 0;
861: end:
862: if (ex) {
863: ERR_print_errors(bio_err);
864: }
865: if ((req_conf != NULL) && (req_conf != config))
866: NCONF_free(req_conf);
867: BIO_free(in);
868: BIO_free_all(out);
869: EVP_PKEY_free(pkey);
870: if (genctx)
871: EVP_PKEY_CTX_free(genctx);
872: if (pkeyopts)
873: sk_OPENSSL_STRING_free(pkeyopts);
874: if (sigopts)
875: sk_OPENSSL_STRING_free(sigopts);
876: free(keyalgstr);
877: X509_REQ_free(req);
878: X509_free(x509ss);
879: ASN1_INTEGER_free(serial);
880: if (passargin && passin)
881: free(passin);
882: if (passargout && passout)
883: free(passout);
884: OBJ_cleanup();
885:
886: return (ex);
887: }
888:
889: static int
890: make_REQ(X509_REQ * req, EVP_PKEY * pkey, char *subj, int multirdn,
891: int attribs, unsigned long chtype)
892: {
893: int ret = 0, i;
894: char no_prompt = 0;
895: STACK_OF(CONF_VALUE) * dn_sk, *attr_sk = NULL;
896: char *tmp, *dn_sect, *attr_sect;
897:
898: tmp = NCONF_get_string(req_conf, SECTION, PROMPT);
899: if (tmp == NULL)
900: ERR_clear_error();
901: if ((tmp != NULL) && !strcmp(tmp, "no"))
902: no_prompt = 1;
903:
904: dn_sect = NCONF_get_string(req_conf, SECTION, DISTINGUISHED_NAME);
905: if (dn_sect == NULL) {
906: BIO_printf(bio_err, "unable to find '%s' in config\n",
907: DISTINGUISHED_NAME);
908: goto err;
909: }
910: dn_sk = NCONF_get_section(req_conf, dn_sect);
911: if (dn_sk == NULL) {
912: BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect);
913: goto err;
914: }
915: attr_sect = NCONF_get_string(req_conf, SECTION, ATTRIBUTES);
916: if (attr_sect == NULL) {
917: ERR_clear_error();
918: attr_sk = NULL;
919: } else {
920: attr_sk = NCONF_get_section(req_conf, attr_sect);
921: if (attr_sk == NULL) {
922: BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect);
923: goto err;
924: }
925: }
926:
927: /* setup version number */
928: if (!X509_REQ_set_version(req, 0L))
929: goto err; /* version 1 */
930:
931: if (no_prompt)
932: i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
933: else {
934: if (subj)
935: i = build_subject(req, subj, chtype, multirdn);
936: else
937: i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs, chtype);
938: }
939: if (!i)
940: goto err;
941:
942: if (!X509_REQ_set_pubkey(req, pkey))
943: goto err;
944:
945: ret = 1;
946: err:
947: return (ret);
948: }
949:
950: /*
951: * subject is expected to be in the format /type0=value0/type1=value1/type2=...
952: * where characters may be escaped by \
953: */
954: static int
955: build_subject(X509_REQ * req, char *subject, unsigned long chtype, int multirdn)
956: {
957: X509_NAME *n;
958:
959: if (!(n = parse_name(subject, chtype, multirdn)))
960: return 0;
961:
962: if (!X509_REQ_set_subject_name(req, n)) {
963: X509_NAME_free(n);
964: return 0;
965: }
966: X509_NAME_free(n);
967: return 1;
968: }
969:
970:
971: static int
972: prompt_info(X509_REQ * req,
973: STACK_OF(CONF_VALUE) * dn_sk, char *dn_sect,
974: STACK_OF(CONF_VALUE) * attr_sk, char *attr_sect, int attribs,
975: unsigned long chtype)
976: {
977: int i;
978: char *p, *q;
979: char buf[100];
980: int nid, mval;
981: long n_min, n_max;
982: char *type, *value;
983: const char *def;
984: CONF_VALUE *v;
985: X509_NAME *subj;
986: subj = X509_REQ_get_subject_name(req);
987:
988: if (!batch) {
989: BIO_printf(bio_err, "You are about to be asked to enter information that will be incorporated\n");
990: BIO_printf(bio_err, "into your certificate request.\n");
991: BIO_printf(bio_err, "What you are about to enter is what is called a Distinguished Name or a DN.\n");
992: BIO_printf(bio_err, "There are quite a few fields but you can leave some blank\n");
993: BIO_printf(bio_err, "For some fields there will be a default value,\n");
994: BIO_printf(bio_err, "If you enter '.', the field will be left blank.\n");
995: BIO_printf(bio_err, "-----\n");
996: }
997: if (sk_CONF_VALUE_num(dn_sk)) {
998: i = -1;
999: start: for (;;) {
1000: int ret;
1001: i++;
1002: if (sk_CONF_VALUE_num(dn_sk) <= i)
1003: break;
1004:
1005: v = sk_CONF_VALUE_value(dn_sk, i);
1006: p = q = NULL;
1007: type = v->name;
1008: if (!check_end(type, "_min") || !check_end(type, "_max") ||
1009: !check_end(type, "_default") ||
1010: !check_end(type, "_value"))
1011: continue;
1012: /*
1013: * Skip past any leading X. X: X, etc to allow for
1014: * multiple instances
1015: */
1016: for (p = v->name; *p; p++)
1017: if ((*p == ':') || (*p == ',') ||
1018: (*p == '.')) {
1019: p++;
1020: if (*p)
1021: type = p;
1022: break;
1023: }
1024: if (*type == '+') {
1025: mval = -1;
1026: type++;
1027: } else
1028: mval = 0;
1029: /* If OBJ not recognised ignore it */
1030: if ((nid = OBJ_txt2nid(type)) == NID_undef)
1031: goto start;
1032: ret = snprintf(buf, sizeof buf, "%s_default", v->name);
1033: if (ret == -1 || ret >= sizeof(buf)) {
1034: BIO_printf(bio_err, "Name '%s' too long for default\n",
1035: v->name);
1036: return 0;
1037: }
1038: if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1039: ERR_clear_error();
1040: def = "";
1041: }
1042: ret = snprintf(buf, sizeof buf, "%s_value", v->name);
1043: if (ret == -1 || ret >= sizeof(buf)) {
1044: BIO_printf(bio_err, "Name '%s' too long for value\n",
1045: v->name);
1046: return 0;
1047: }
1048: if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1049: ERR_clear_error();
1050: value = NULL;
1051: }
1052: ret = snprintf(buf, sizeof buf, "%s_min", v->name);
1053: if (ret == -1 || ret >= sizeof(buf)) {
1054: BIO_printf(bio_err, "Name '%s' too long for min\n",
1055: v->name);
1056: return 0;
1057: }
1058: if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1059: ERR_clear_error();
1060: n_min = -1;
1061: }
1062: ret = snprintf(buf, sizeof buf, "%s_max", v->name);
1063: if (ret == -1 || ret >= sizeof(buf)) {
1064: BIO_printf(bio_err, "Name '%s' too long for max\n",
1065: v->name);
1066: return 0;
1067: }
1068: if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1069: ERR_clear_error();
1070: n_max = -1;
1071: }
1072: if (!add_DN_object(subj, v->value, def, value, nid,
1073: n_min, n_max, chtype, mval))
1074: return 0;
1075: }
1076: if (X509_NAME_entry_count(subj) == 0) {
1077: BIO_printf(bio_err, "error, no objects specified in config file\n");
1078: return 0;
1079: }
1080: if (attribs) {
1081: if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0) &&
1082: (!batch)) {
1083: BIO_printf(bio_err,
1084: "\nPlease enter the following 'extra' attributes\n");
1085: BIO_printf(bio_err,
1086: "to be sent with your certificate request\n");
1087: }
1088: i = -1;
1089: start2: for (;;) {
1090: int ret;
1091: i++;
1092: if ((attr_sk == NULL) ||
1093: (sk_CONF_VALUE_num(attr_sk) <= i))
1094: break;
1095:
1096: v = sk_CONF_VALUE_value(attr_sk, i);
1097: type = v->name;
1098: if ((nid = OBJ_txt2nid(type)) == NID_undef)
1099: goto start2;
1100: ret = snprintf(buf, sizeof buf, "%s_default", type);
1101: if (ret == -1 || ret >= sizeof(buf)) {
1102: BIO_printf(bio_err, "Name '%s' too long for default\n",
1103: v->name);
1104: return 0;
1105: }
1106: if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1107: == NULL) {
1108: ERR_clear_error();
1109: def = "";
1110: }
1111: ret = snprintf(buf, sizeof buf, "%s_value", type);
1112: if (ret == -1 || ret >= sizeof(buf)) {
1113: BIO_printf(bio_err, "Name '%s' too long for value\n",
1114: v->name);
1115: return 0;
1116: }
1117: if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1118: == NULL) {
1119: ERR_clear_error();
1120: value = NULL;
1121: }
1122: ret = snprintf(buf, sizeof buf, "%s_min", type);
1123: if (ret == -1 || ret >= sizeof(buf)) {
1124: BIO_printf(bio_err, "Name '%s' too long for min\n",
1125: v->name);
1126: return 0;
1127: }
1128: if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1129: ERR_clear_error();
1130: n_min = -1;
1131: }
1132: ret = snprintf(buf, sizeof buf, "%s_max", type);
1133: if (ret == -1 || ret >= sizeof(buf)) {
1134: BIO_printf(bio_err, "Name '%s' too long for max\n",
1135: v->name);
1136: return 0;
1137: }
1138: if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1139: ERR_clear_error();
1140: n_max = -1;
1141: }
1142: if (!add_attribute_object(req,
1143: v->value, def, value, nid, n_min, n_max, chtype))
1144: return 0;
1145: }
1146: }
1147: } else {
1148: BIO_printf(bio_err, "No template, please set one up.\n");
1149: return 0;
1150: }
1151:
1152: return 1;
1153:
1154: }
1155:
1156: static int
1157: auto_info(X509_REQ * req, STACK_OF(CONF_VALUE) * dn_sk,
1158: STACK_OF(CONF_VALUE) * attr_sk, int attribs, unsigned long chtype)
1159: {
1160: int i;
1161: char *p, *q;
1162: char *type;
1163: CONF_VALUE *v;
1164: X509_NAME *subj;
1165:
1166: subj = X509_REQ_get_subject_name(req);
1167:
1168: for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1169: int mval;
1170: v = sk_CONF_VALUE_value(dn_sk, i);
1171: p = q = NULL;
1172: type = v->name;
1173: /*
1174: * Skip past any leading X. X: X, etc to allow for multiple
1175: * instances
1176: */
1177: for (p = v->name; *p; p++)
1178: if ((*p == ':') || (*p == ',') || (*p == '.')) {
1179: p++;
1180: if (*p)
1181: type = p;
1182: break;
1183: }
1184: if (*p == '+') {
1185: p++;
1186: mval = -1;
1187: } else
1188: mval = 0;
1189: if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1190: (unsigned char *) v->value, -1, -1, mval))
1191: return 0;
1192:
1193: }
1194:
1195: if (!X509_NAME_entry_count(subj)) {
1196: BIO_printf(bio_err, "error, no objects specified in config file\n");
1197: return 0;
1198: }
1199: if (attribs) {
1200: for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1201: v = sk_CONF_VALUE_value(attr_sk, i);
1202: if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1203: (unsigned char *) v->value, -1))
1204: return 0;
1205: }
1206: }
1207: return 1;
1208: }
1209:
1210:
1211: static int
1212: add_DN_object(X509_NAME * n, char *text, const char *def, char *value,
1213: int nid, int n_min, int n_max, unsigned long chtype, int mval)
1214: {
1215: int i, ret = 0;
1216: char buf[1024];
1217: start:
1218: if (!batch)
1219: BIO_printf(bio_err, "%s [%s]:", text, def);
1220: (void) BIO_flush(bio_err);
1221: if (value != NULL) {
1222: strlcpy(buf, value, sizeof buf);
1223: strlcat(buf, "\n", sizeof buf);
1224: BIO_printf(bio_err, "%s\n", value);
1225: } else {
1226: buf[0] = '\0';
1227: if (!batch) {
1228: if (!fgets(buf, sizeof buf, stdin))
1229: return 0;
1230: } else {
1231: buf[0] = '\n';
1232: buf[1] = '\0';
1233: }
1234: }
1235:
1236: if (buf[0] == '\0')
1237: return (0);
1238: else if (buf[0] == '\n') {
1239: if ((def == NULL) || (def[0] == '\0'))
1240: return (1);
1241: strlcpy(buf, def, sizeof buf);
1242: strlcat(buf, "\n", sizeof buf);
1243: } else if ((buf[0] == '.') && (buf[1] == '\n'))
1244: return (1);
1245:
1246: i = strlen(buf);
1247: if (buf[i - 1] != '\n') {
1248: BIO_printf(bio_err, "weird input :-(\n");
1249: return (0);
1250: }
1251: buf[--i] = '\0';
1252: if (!req_check_len(i, n_min, n_max))
1253: goto start;
1254: if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1255: (unsigned char *) buf, -1, -1, mval))
1256: goto err;
1257: ret = 1;
1258: err:
1259: return (ret);
1260: }
1261:
1262: static int
1263: add_attribute_object(X509_REQ * req, char *text, const char *def,
1264: char *value, int nid, int n_min,
1265: int n_max, unsigned long chtype)
1266: {
1267: int i;
1268: static char buf[1024];
1269:
1270: start:
1271: if (!batch)
1272: BIO_printf(bio_err, "%s [%s]:", text, def);
1273: (void) BIO_flush(bio_err);
1274: if (value != NULL) {
1275: strlcpy(buf, value, sizeof buf);
1276: strlcat(buf, "\n", sizeof buf);
1277: BIO_printf(bio_err, "%s\n", value);
1278: } else {
1279: buf[0] = '\0';
1280: if (!batch) {
1281: if (!fgets(buf, sizeof buf, stdin))
1282: return 0;
1283: } else {
1284: buf[0] = '\n';
1285: buf[1] = '\0';
1286: }
1287: }
1288:
1289: if (buf[0] == '\0')
1290: return (0);
1291: else if (buf[0] == '\n') {
1292: if ((def == NULL) || (def[0] == '\0'))
1293: return (1);
1294: strlcpy(buf, def, sizeof buf);
1295: strlcat(buf, "\n", sizeof buf);
1296: } else if ((buf[0] == '.') && (buf[1] == '\n'))
1297: return (1);
1298:
1299: i = strlen(buf);
1300: if (buf[i - 1] != '\n') {
1301: BIO_printf(bio_err, "weird input :-(\n");
1302: return (0);
1303: }
1304: buf[--i] = '\0';
1305: if (!req_check_len(i, n_min, n_max))
1306: goto start;
1307:
1308: if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1309: (unsigned char *) buf, -1)) {
1310: BIO_printf(bio_err, "Error adding attribute\n");
1311: ERR_print_errors(bio_err);
1312: goto err;
1313: }
1314: return (1);
1315: err:
1316: return (0);
1317: }
1318:
1319: static int
1320: req_check_len(int len, int n_min, int n_max)
1321: {
1322: if ((n_min > 0) && (len < n_min)) {
1323: BIO_printf(bio_err, "string is too short, it needs to be at least %d bytes long\n", n_min);
1324: return (0);
1325: }
1326: if ((n_max >= 0) && (len > n_max)) {
1327: BIO_printf(bio_err, "string is too long, it needs to be less than %d bytes long\n", n_max);
1328: return (0);
1329: }
1330: return (1);
1331: }
1332:
1333: /* Check if the end of a string matches 'end' */
1334: static int
1335: check_end(const char *str, const char *end)
1336: {
1337: int elen, slen;
1338: const char *tmp;
1339: elen = strlen(end);
1340: slen = strlen(str);
1341: if (elen > slen)
1342: return 1;
1343: tmp = str + slen - elen;
1344: return strcmp(tmp, end);
1345: }
1346:
1347: static EVP_PKEY_CTX *
1348: set_keygen_ctx(BIO * err, const char *gstr, int *pkey_type,
1.7 bcook 1349: long *pkeylen, char **palgnam)
1.1 jsing 1350: {
1351: EVP_PKEY_CTX *gctx = NULL;
1352: EVP_PKEY *param = NULL;
1353: long keylen = -1;
1354: BIO *pbio = NULL;
1355: const char *paramfile = NULL;
1356: const char *errstr;
1357:
1358: if (gstr == NULL) {
1359: *pkey_type = EVP_PKEY_RSA;
1360: keylen = *pkeylen;
1361: } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1362: *pkey_type = EVP_PKEY_RSA;
1363: keylen = strtonum(gstr, 0, LONG_MAX, &errstr);
1364: if (errstr) {
1365: BIO_printf(err, "bad algorithm %s: %s\n", gstr, errstr);
1366: return NULL;
1367: }
1368: *pkeylen = keylen;
1369: } else if (!strncmp(gstr, "param:", 6))
1370: paramfile = gstr + 6;
1371: else {
1372: const char *p = strchr(gstr, ':');
1373: int len;
1374: const EVP_PKEY_ASN1_METHOD *ameth;
1375:
1376: if (p)
1377: len = p - gstr;
1378: else
1379: len = strlen(gstr);
1380:
1.7 bcook 1381: ameth = EVP_PKEY_asn1_find_str(NULL, gstr, len);
1.1 jsing 1382:
1383: if (!ameth) {
1384: BIO_printf(err, "Unknown algorithm %.*s\n", len, gstr);
1385: return NULL;
1386: }
1387: EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL,
1388: ameth);
1389: if (*pkey_type == EVP_PKEY_RSA) {
1390: if (p) {
1391: keylen = strtonum(p + 1, 0, LONG_MAX, &errstr);
1392: if (errstr) {
1393: BIO_printf(err, "bad algorithm %s: %s\n",
1394: p + 1, errstr);
1395: return NULL;
1396: }
1397: *pkeylen = keylen;
1398: } else
1399: keylen = *pkeylen;
1400: } else if (p)
1401: paramfile = p + 1;
1402: }
1403:
1404: if (paramfile) {
1405: pbio = BIO_new_file(paramfile, "r");
1406: if (!pbio) {
1407: BIO_printf(err, "Can't open parameter file %s\n",
1408: paramfile);
1409: return NULL;
1410: }
1411: param = PEM_read_bio_Parameters(pbio, NULL);
1412:
1413: if (!param) {
1414: X509 *x;
1415: (void) BIO_reset(pbio);
1416: x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1417: if (x) {
1418: param = X509_get_pubkey(x);
1419: X509_free(x);
1420: }
1421: }
1422: BIO_free(pbio);
1423:
1424: if (!param) {
1425: BIO_printf(err, "Error reading parameter file %s\n",
1426: paramfile);
1427: return NULL;
1428: }
1429: if (*pkey_type == -1)
1430: *pkey_type = EVP_PKEY_id(param);
1431: else if (*pkey_type != EVP_PKEY_base_id(param)) {
1432: BIO_printf(err, "Key Type does not match parameters\n");
1433: EVP_PKEY_free(param);
1434: return NULL;
1435: }
1436: }
1437: if (palgnam) {
1438: const EVP_PKEY_ASN1_METHOD *ameth;
1439: const char *anam;
1.7 bcook 1440: ameth = EVP_PKEY_asn1_find(NULL, *pkey_type);
1.1 jsing 1441: if (!ameth) {
1442: BIO_puts(err, "Internal error: can't find key algorithm\n");
1443: return NULL;
1444: }
1445: EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1.4 jsing 1446: *palgnam = strdup(anam);
1.1 jsing 1447: }
1448: if (param) {
1.7 bcook 1449: gctx = EVP_PKEY_CTX_new(param, NULL);
1.1 jsing 1450: *pkeylen = EVP_PKEY_bits(param);
1451: EVP_PKEY_free(param);
1452: } else
1.7 bcook 1453: gctx = EVP_PKEY_CTX_new_id(*pkey_type, NULL);
1.1 jsing 1454:
1455: if (!gctx) {
1456: BIO_puts(err, "Error allocating keygen context\n");
1457: ERR_print_errors(err);
1458: return NULL;
1459: }
1460: if (EVP_PKEY_keygen_init(gctx) <= 0) {
1461: BIO_puts(err, "Error initializing keygen context\n");
1462: ERR_print_errors(err);
1463: return NULL;
1464: }
1465: if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) {
1466: if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) {
1467: BIO_puts(err, "Error setting RSA keysize\n");
1468: ERR_print_errors(err);
1469: EVP_PKEY_CTX_free(gctx);
1470: return NULL;
1471: }
1472: }
1473:
1474: return gctx;
1475: }
1476:
1477: static int
1478: genpkey_cb(EVP_PKEY_CTX * ctx)
1479: {
1480: char c = '*';
1481: BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1482: int p;
1483: p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1484: if (p == 0)
1485: c = '.';
1486: if (p == 1)
1487: c = '+';
1488: if (p == 2)
1489: c = '*';
1490: if (p == 3)
1491: c = '\n';
1492: BIO_write(b, &c, 1);
1493: (void) BIO_flush(b);
1494: return 1;
1495: }
1496:
1497: static int
1498: do_sign_init(BIO * err, EVP_MD_CTX * ctx, EVP_PKEY * pkey,
1499: const EVP_MD * md, STACK_OF(OPENSSL_STRING) * sigopts)
1500: {
1501: EVP_PKEY_CTX *pkctx = NULL;
1502: int i;
1503: EVP_MD_CTX_init(ctx);
1504: if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey))
1505: return 0;
1506: for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
1507: char *sigopt = sk_OPENSSL_STRING_value(sigopts, i);
1508: if (pkey_ctrl_string(pkctx, sigopt) <= 0) {
1509: BIO_printf(err, "parameter error \"%s\"\n", sigopt);
1510: ERR_print_errors(bio_err);
1511: return 0;
1512: }
1513: }
1514: return 1;
1515: }
1516:
1517: int
1518: do_X509_sign(BIO * err, X509 * x, EVP_PKEY * pkey, const EVP_MD * md,
1519: STACK_OF(OPENSSL_STRING) * sigopts)
1520: {
1521: int rv;
1522: EVP_MD_CTX mctx;
1523: EVP_MD_CTX_init(&mctx);
1524: rv = do_sign_init(err, &mctx, pkey, md, sigopts);
1525: if (rv > 0)
1526: rv = X509_sign_ctx(x, &mctx);
1527: EVP_MD_CTX_cleanup(&mctx);
1528: return rv > 0 ? 1 : 0;
1529: }
1530:
1531:
1532: int
1533: do_X509_REQ_sign(BIO * err, X509_REQ * x, EVP_PKEY * pkey, const EVP_MD * md,
1534: STACK_OF(OPENSSL_STRING) * sigopts)
1535: {
1536: int rv;
1537: EVP_MD_CTX mctx;
1538: EVP_MD_CTX_init(&mctx);
1539: rv = do_sign_init(err, &mctx, pkey, md, sigopts);
1540: if (rv > 0)
1541: rv = X509_REQ_sign_ctx(x, &mctx);
1542: EVP_MD_CTX_cleanup(&mctx);
1543: return rv > 0 ? 1 : 0;
1544: }
1545:
1546:
1547:
1548: int
1549: do_X509_CRL_sign(BIO * err, X509_CRL * x, EVP_PKEY * pkey, const EVP_MD * md,
1550: STACK_OF(OPENSSL_STRING) * sigopts)
1551: {
1552: int rv;
1553: EVP_MD_CTX mctx;
1554: EVP_MD_CTX_init(&mctx);
1555: rv = do_sign_init(err, &mctx, pkey, md, sigopts);
1556: if (rv > 0)
1557: rv = X509_CRL_sign_ctx(x, &mctx);
1558: EVP_MD_CTX_cleanup(&mctx);
1559: return rv > 0 ? 1 : 0;
1560: }