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