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1.3 ! sthen 1: /* $OpenBSD: req.c,v 1.2 2014/08/28 14:23:52 jsing 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,
143: long *pkeylen, char **palgnam,
144: ENGINE * keygen_engine);
145: static CONF *req_conf = NULL;
146: static int batch = 0;
147:
148: int req_main(int, char **);
149:
150: int
151: req_main(int argc, char **argv)
152: {
153: ENGINE *e = NULL, *gen_eng = NULL;
154: unsigned long nmflag = 0, reqflag = 0;
155: int ex = 1, x509 = 0, days = 30;
156: X509 *x509ss = NULL;
157: X509_REQ *req = NULL;
158: EVP_PKEY_CTX *genctx = NULL;
159: const char *keyalg = NULL;
160: char *keyalgstr = NULL;
161: STACK_OF(OPENSSL_STRING) * pkeyopts = NULL, *sigopts = NULL;
162: EVP_PKEY *pkey = NULL;
163: int i = 0, badops = 0, newreq = 0, verbose = 0, pkey_type = -1;
164: long newkey = -1;
165: BIO *in = NULL, *out = NULL;
166: int informat, outformat, verify = 0, noout = 0, text = 0, keyform = FORMAT_PEM;
167: int nodes = 0, kludge = 0, newhdr = 0, subject = 0, pubkey = 0;
168: char *infile, *outfile, *prog, *keyfile = NULL, *template = NULL,
169: *keyout = NULL;
170: #ifndef OPENSSL_NO_ENGINE
171: char *engine = NULL;
172: #endif
173: char *extensions = NULL;
174: char *req_exts = NULL;
175: const EVP_CIPHER *cipher = NULL;
176: ASN1_INTEGER *serial = NULL;
177: int modulus = 0;
178: char *passargin = NULL, *passargout = NULL;
179: char *passin = NULL, *passout = NULL;
180: char *p;
181: char *subj = NULL;
182: int multirdn = 0;
183: const EVP_MD *md_alg = NULL, *digest = NULL;
184: unsigned long chtype = MBSTRING_ASC;
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: #ifndef OPENSSL_NO_ENGINE
209: else if (strcmp(*argv, "-engine") == 0) {
210: if (--argc < 1)
211: goto bad;
212: engine = *(++argv);
213: } else if (strcmp(*argv, "-keygen_engine") == 0) {
214: if (--argc < 1)
215: goto bad;
216: gen_eng = ENGINE_by_id(*(++argv));
217: if (gen_eng == NULL) {
218: BIO_printf(bio_err, "Can't find keygen engine %s\n", *argv);
219: goto end;
220: }
221: }
222: #endif
223: else if (strcmp(*argv, "-key") == 0) {
224: if (--argc < 1)
225: goto bad;
226: keyfile = *(++argv);
227: } else if (strcmp(*argv, "-pubkey") == 0) {
228: pubkey = 1;
229: } else if (strcmp(*argv, "-new") == 0) {
230: newreq = 1;
231: } else if (strcmp(*argv, "-config") == 0) {
232: if (--argc < 1)
233: goto bad;
234: template = *(++argv);
235: } else if (strcmp(*argv, "-keyform") == 0) {
236: if (--argc < 1)
237: goto bad;
238: keyform = str2fmt(*(++argv));
239: } else if (strcmp(*argv, "-in") == 0) {
240: if (--argc < 1)
241: goto bad;
242: infile = *(++argv);
243: } else if (strcmp(*argv, "-out") == 0) {
244: if (--argc < 1)
245: goto bad;
246: outfile = *(++argv);
247: } else if (strcmp(*argv, "-keyout") == 0) {
248: if (--argc < 1)
249: goto bad;
250: keyout = *(++argv);
251: } else if (strcmp(*argv, "-passin") == 0) {
252: if (--argc < 1)
253: goto bad;
254: passargin = *(++argv);
255: } else if (strcmp(*argv, "-passout") == 0) {
256: if (--argc < 1)
257: goto bad;
258: passargout = *(++argv);
259: } else if (strcmp(*argv, "-newkey") == 0) {
260: if (--argc < 1)
261: goto bad;
262: keyalg = *(++argv);
263: newreq = 1;
264: } else if (strcmp(*argv, "-pkeyopt") == 0) {
265: if (--argc < 1)
266: goto bad;
267: if (!pkeyopts)
268: pkeyopts = sk_OPENSSL_STRING_new_null();
269: if (!pkeyopts || !sk_OPENSSL_STRING_push(pkeyopts, *(++argv)))
270: goto bad;
271: } else if (strcmp(*argv, "-sigopt") == 0) {
272: if (--argc < 1)
273: goto bad;
274: if (!sigopts)
275: sigopts = sk_OPENSSL_STRING_new_null();
276: if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, *(++argv)))
277: goto bad;
278: } else if (strcmp(*argv, "-batch") == 0)
279: batch = 1;
280: else if (strcmp(*argv, "-newhdr") == 0)
281: newhdr = 1;
282: else if (strcmp(*argv, "-modulus") == 0)
283: modulus = 1;
284: else if (strcmp(*argv, "-verify") == 0)
285: verify = 1;
286: else if (strcmp(*argv, "-nodes") == 0)
287: nodes = 1;
288: else if (strcmp(*argv, "-noout") == 0)
289: noout = 1;
290: else if (strcmp(*argv, "-verbose") == 0)
291: verbose = 1;
292: else if (strcmp(*argv, "-utf8") == 0)
293: chtype = MBSTRING_UTF8;
294: else if (strcmp(*argv, "-nameopt") == 0) {
295: if (--argc < 1)
296: goto bad;
297: if (!set_name_ex(&nmflag, *(++argv)))
298: goto bad;
299: } else if (strcmp(*argv, "-reqopt") == 0) {
300: if (--argc < 1)
301: goto bad;
302: if (!set_cert_ex(&reqflag, *(++argv)))
303: goto bad;
304: } else if (strcmp(*argv, "-subject") == 0)
305: subject = 1;
306: else if (strcmp(*argv, "-text") == 0)
307: text = 1;
308: else if (strcmp(*argv, "-x509") == 0)
309: x509 = 1;
310: else if (strcmp(*argv, "-asn1-kludge") == 0)
311: kludge = 1;
312: else if (strcmp(*argv, "-no-asn1-kludge") == 0)
313: kludge = 0;
314: else if (strcmp(*argv, "-subj") == 0) {
315: if (--argc < 1)
316: goto bad;
317: subj = *(++argv);
318: } else if (strcmp(*argv, "-multivalue-rdn") == 0)
319: multirdn = 1;
320: else if (strcmp(*argv, "-days") == 0) {
321: const char *errstr;
322:
323: if (--argc < 1)
324: goto bad;
325: days = strtonum(*(++argv), 1, INT_MAX, &errstr);
326: if (errstr) {
327: BIO_printf(bio_err, "bad -days %s, using 0: %s\n",
328: *argv, errstr);
329: days = 30;
330: }
331: } else if (strcmp(*argv, "-set_serial") == 0) {
332: if (--argc < 1)
333: goto bad;
334: serial = s2i_ASN1_INTEGER(NULL, *(++argv));
335: if (!serial)
336: goto bad;
337: } else if (strcmp(*argv, "-extensions") == 0) {
338: if (--argc < 1)
339: goto bad;
340: extensions = *(++argv);
341: } else if (strcmp(*argv, "-reqexts") == 0) {
342: if (--argc < 1)
343: goto bad;
344: req_exts = *(++argv);
345: } else if ((md_alg = EVP_get_digestbyname(&((*argv)[1]))) != NULL) {
346: /* ok */
347: digest = md_alg;
348: } else {
349: BIO_printf(bio_err, "unknown option %s\n", *argv);
350: badops = 1;
351: break;
352: }
353: argc--;
354: argv++;
355: }
356:
357: if (badops) {
358: bad:
359: BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog);
360: BIO_printf(bio_err, "where options are\n");
361: BIO_printf(bio_err, " -inform arg input format - DER or PEM\n");
362: BIO_printf(bio_err, " -outform arg output format - DER or PEM\n");
363: BIO_printf(bio_err, " -in arg input file\n");
364: BIO_printf(bio_err, " -out arg output file\n");
365: BIO_printf(bio_err, " -text text form of request\n");
366: BIO_printf(bio_err, " -pubkey output public key\n");
367: BIO_printf(bio_err, " -noout do not output REQ\n");
368: BIO_printf(bio_err, " -verify verify signature on REQ\n");
369: BIO_printf(bio_err, " -modulus RSA modulus\n");
370: BIO_printf(bio_err, " -nodes don't encrypt the output key\n");
371: #ifndef OPENSSL_NO_ENGINE
372: BIO_printf(bio_err, " -engine e use engine e, possibly a hardware device\n");
373: #endif
374: BIO_printf(bio_err, " -subject output the request's subject\n");
375: BIO_printf(bio_err, " -passin private key password source\n");
376: BIO_printf(bio_err, " -key file use the private key contained in file\n");
377: BIO_printf(bio_err, " -keyform arg key file format\n");
378: BIO_printf(bio_err, " -keyout arg file to send the key to\n");
379: BIO_printf(bio_err, " -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
380: BIO_printf(bio_err, " -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
381: BIO_printf(bio_err, " -newkey ec:file generate a new EC key, parameters taken from CA in 'file'\n");
382: BIO_printf(bio_err, " -[digest] Digest to sign with (md5, sha1, md2, mdc2, md4)\n");
383: BIO_printf(bio_err, " -config file request template file.\n");
384: BIO_printf(bio_err, " -subj arg set or modify request subject\n");
385: BIO_printf(bio_err, " -multivalue-rdn enable support for multivalued RDNs\n");
386: BIO_printf(bio_err, " -new new request.\n");
387: BIO_printf(bio_err, " -batch do not ask anything during request generation\n");
388: BIO_printf(bio_err, " -x509 output a x509 structure instead of a cert. req.\n");
389: BIO_printf(bio_err, " -days number of days a certificate generated by -x509 is valid for.\n");
390: BIO_printf(bio_err, " -set_serial serial number to use for a certificate generated by -x509.\n");
391: BIO_printf(bio_err, " -newhdr output \"NEW\" in the header lines\n");
392: BIO_printf(bio_err, " -asn1-kludge Output the 'request' in a format that is wrong but some CA's\n");
393: BIO_printf(bio_err, " have been reported as requiring\n");
394: BIO_printf(bio_err, " -extensions .. specify certificate extension section (override value in config file)\n");
395: BIO_printf(bio_err, " -reqexts .. specify request extension section (override value in config file)\n");
396: BIO_printf(bio_err, " -utf8 input characters are UTF8 (default ASCII)\n");
397: BIO_printf(bio_err, " -nameopt arg - various certificate name options\n");
398: BIO_printf(bio_err, " -reqopt arg - various request text options\n\n");
399: goto end;
400: }
1.2 jsing 401:
1.1 jsing 402: if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
403: BIO_printf(bio_err, "Error getting passwords\n");
404: goto end;
405: }
406: if (template != NULL) {
407: long errline = -1;
408:
409: if (verbose)
410: BIO_printf(bio_err, "Using configuration from %s\n", template);
411: req_conf = NCONF_new(NULL);
412: i = NCONF_load(req_conf, template, &errline);
413: if (i == 0) {
414: BIO_printf(bio_err, "error on line %ld of %s\n", errline, template);
415: goto end;
416: }
417: } else {
418: req_conf = config;
419:
420: if (req_conf == NULL) {
421: BIO_printf(bio_err, "Unable to load config info from %s\n", default_config_file);
422: if (newreq)
423: goto end;
424: } else if (verbose)
425: BIO_printf(bio_err, "Using configuration from %s\n",
426: default_config_file);
427: }
428:
429: if (req_conf != NULL) {
430: if (!load_config(bio_err, req_conf))
431: goto end;
432: p = NCONF_get_string(req_conf, NULL, "oid_file");
433: if (p == NULL)
434: ERR_clear_error();
435: if (p != NULL) {
436: BIO *oid_bio;
437:
438: oid_bio = BIO_new_file(p, "r");
439: if (oid_bio == NULL) {
440: /*
441: BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
442: ERR_print_errors(bio_err);
443: */
444: } else {
445: OBJ_create_objects(oid_bio);
446: BIO_free(oid_bio);
447: }
448: }
449: }
450: if (!add_oid_section(bio_err, req_conf))
451: goto end;
452:
453: if (md_alg == NULL) {
454: p = NCONF_get_string(req_conf, SECTION, "default_md");
455: if (p == NULL)
456: ERR_clear_error();
457: if (p != NULL) {
458: if ((md_alg = EVP_get_digestbyname(p)) != NULL)
459: digest = md_alg;
460: }
461: }
462: if (!extensions) {
463: extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
464: if (!extensions)
465: ERR_clear_error();
466: }
467: if (extensions) {
468: /* Check syntax of file */
469: X509V3_CTX ctx;
470: X509V3_set_ctx_test(&ctx);
471: X509V3_set_nconf(&ctx, req_conf);
472: if (!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) {
473: BIO_printf(bio_err,
474: "Error Loading extension section %s\n", extensions);
475: goto end;
476: }
477: }
478: if (!passin) {
479: passin = NCONF_get_string(req_conf, SECTION, "input_password");
480: if (!passin)
481: ERR_clear_error();
482: }
483: if (!passout) {
484: passout = NCONF_get_string(req_conf, SECTION, "output_password");
485: if (!passout)
486: ERR_clear_error();
487: }
488: p = NCONF_get_string(req_conf, SECTION, STRING_MASK);
489: if (!p)
490: ERR_clear_error();
491:
492: if (p && !ASN1_STRING_set_default_mask_asc(p)) {
493: BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
494: goto end;
495: }
496: if (chtype != MBSTRING_UTF8) {
497: p = NCONF_get_string(req_conf, SECTION, UTF8_IN);
498: if (!p)
499: ERR_clear_error();
500: else if (!strcmp(p, "yes"))
501: chtype = MBSTRING_UTF8;
502: }
503: if (!req_exts) {
504: req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
505: if (!req_exts)
506: ERR_clear_error();
507: }
508: if (req_exts) {
509: /* Check syntax of file */
510: X509V3_CTX ctx;
511: X509V3_set_ctx_test(&ctx);
512: X509V3_set_nconf(&ctx, req_conf);
513: if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) {
514: BIO_printf(bio_err,
515: "Error Loading request extension section %s\n",
516: req_exts);
517: goto end;
518: }
519: }
520: in = BIO_new(BIO_s_file());
521: out = BIO_new(BIO_s_file());
522: if ((in == NULL) || (out == NULL))
523: goto end;
524:
525: #ifndef OPENSSL_NO_ENGINE
526: e = setup_engine(bio_err, engine, 0);
527: #endif
528:
529: if (keyfile != NULL) {
530: pkey = load_key(bio_err, keyfile, keyform, 0, passin, e,
531: "Private Key");
532: if (!pkey) {
533: /*
534: * load_key() has already printed an appropriate
535: * message
536: */
537: goto end;
538: }
539: }
540: if (newreq && (pkey == NULL)) {
541: if (!NCONF_get_number(req_conf, SECTION, BITS, &newkey)) {
542: newkey = DEFAULT_KEY_LENGTH;
543: }
544: if (keyalg) {
545: genctx = set_keygen_ctx(bio_err, keyalg, &pkey_type, &newkey,
546: &keyalgstr, gen_eng);
547: if (!genctx)
548: goto end;
549: }
550: if (newkey < MIN_KEY_LENGTH && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) {
551: BIO_printf(bio_err, "private key length is too short,\n");
552: BIO_printf(bio_err, "it needs to be at least %d bits, not %ld\n", MIN_KEY_LENGTH, newkey);
553: goto end;
554: }
555: if (!genctx) {
556: genctx = set_keygen_ctx(bio_err, NULL, &pkey_type, &newkey,
557: &keyalgstr, gen_eng);
558: if (!genctx)
559: goto end;
560: }
561: if (pkeyopts) {
562: char *genopt;
563: for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) {
564: genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
565: if (pkey_ctrl_string(genctx, genopt) <= 0) {
566: BIO_printf(bio_err,
567: "parameter error \"%s\"\n",
568: genopt);
569: ERR_print_errors(bio_err);
570: goto end;
571: }
572: }
573: }
574: BIO_printf(bio_err, "Generating a %ld bit %s private key\n",
575: newkey, keyalgstr);
576:
577: EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
578: EVP_PKEY_CTX_set_app_data(genctx, bio_err);
579:
580: if (EVP_PKEY_keygen(genctx, &pkey) <= 0) {
581: BIO_puts(bio_err, "Error Generating Key\n");
582: goto end;
583: }
584: EVP_PKEY_CTX_free(genctx);
585: genctx = NULL;
586:
587: if (keyout == NULL) {
588: keyout = NCONF_get_string(req_conf, SECTION, KEYFILE);
589: if (keyout == NULL)
590: ERR_clear_error();
591: }
592: if (keyout == NULL) {
593: BIO_printf(bio_err, "writing new private key to stdout\n");
594: BIO_set_fp(out, stdout, BIO_NOCLOSE);
595: } else {
596: BIO_printf(bio_err, "writing new private key to '%s'\n", keyout);
597: if (BIO_write_filename(out, keyout) <= 0) {
598: perror(keyout);
599: goto end;
600: }
601: }
602:
603: p = NCONF_get_string(req_conf, SECTION, "encrypt_rsa_key");
604: if (p == NULL) {
605: ERR_clear_error();
606: p = NCONF_get_string(req_conf, SECTION, "encrypt_key");
607: if (p == NULL)
608: ERR_clear_error();
609: }
610: if ((p != NULL) && (strcmp(p, "no") == 0))
611: cipher = NULL;
612: if (nodes)
613: cipher = NULL;
614:
615: i = 0;
616: loop:
617: if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
618: NULL, 0, NULL, passout)) {
619: if ((ERR_GET_REASON(ERR_peek_error()) ==
620: PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
621: ERR_clear_error();
622: i++;
623: goto loop;
624: }
625: goto end;
626: }
627: BIO_printf(bio_err, "-----\n");
628: }
629: if (!newreq) {
630: /*
631: * Since we are using a pre-existing certificate request, the
632: * kludge 'format' info should not be changed.
633: */
634: kludge = -1;
635: if (infile == NULL)
636: BIO_set_fp(in, stdin, BIO_NOCLOSE);
637: else {
638: if (BIO_read_filename(in, infile) <= 0) {
639: perror(infile);
640: goto end;
641: }
642: }
643:
644: if (informat == FORMAT_ASN1)
645: req = d2i_X509_REQ_bio(in, NULL);
646: else if (informat == FORMAT_PEM)
647: req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
648: else {
649: BIO_printf(bio_err, "bad input format specified for X509 request\n");
650: goto end;
651: }
652: if (req == NULL) {
653: BIO_printf(bio_err, "unable to load X509 request\n");
654: goto end;
655: }
656: }
657: if (newreq || x509) {
658: if (pkey == NULL) {
659: BIO_printf(bio_err, "you need to specify a private key\n");
660: goto end;
661: }
662: if (req == NULL) {
663: req = X509_REQ_new();
664: if (req == NULL) {
665: goto end;
666: }
667: i = make_REQ(req, pkey, subj, multirdn, !x509, chtype);
668: subj = NULL; /* done processing '-subj' option */
669: if ((kludge > 0) && !sk_X509_ATTRIBUTE_num(req->req_info->attributes)) {
670: sk_X509_ATTRIBUTE_free(req->req_info->attributes);
671: req->req_info->attributes = NULL;
672: }
673: if (!i) {
674: BIO_printf(bio_err, "problems making Certificate Request\n");
675: goto end;
676: }
677: }
678: if (x509) {
679: EVP_PKEY *tmppkey;
680: X509V3_CTX ext_ctx;
681: if ((x509ss = X509_new()) == NULL)
682: goto end;
683:
684: /* Set version to V3 */
685: if (extensions && !X509_set_version(x509ss, 2))
686: goto end;
687: if (serial) {
688: if (!X509_set_serialNumber(x509ss, serial))
689: goto end;
690: } else {
691: if (!rand_serial(NULL,
692: X509_get_serialNumber(x509ss)))
693: goto end;
694: }
695:
696: if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req)))
697: goto end;
698: if (!X509_gmtime_adj(X509_get_notBefore(x509ss), 0))
699: goto end;
700: if (!X509_time_adj_ex(X509_get_notAfter(x509ss), days, 0, NULL))
701: goto end;
702: if (!X509_set_subject_name(x509ss, X509_REQ_get_subject_name(req)))
703: goto end;
704: tmppkey = X509_REQ_get_pubkey(req);
705: if (!tmppkey || !X509_set_pubkey(x509ss, tmppkey))
706: goto end;
707: EVP_PKEY_free(tmppkey);
708:
709: /* Set up V3 context struct */
710:
711: X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
712: X509V3_set_nconf(&ext_ctx, req_conf);
713:
714: /* Add extensions */
715: if (extensions && !X509V3_EXT_add_nconf(req_conf,
716: &ext_ctx, extensions, x509ss)) {
717: BIO_printf(bio_err,
718: "Error Loading extension section %s\n",
719: extensions);
720: goto end;
721: }
722: i = do_X509_sign(bio_err, x509ss, pkey, digest, sigopts);
723: if (!i) {
724: ERR_print_errors(bio_err);
725: goto end;
726: }
727: } else {
728: X509V3_CTX ext_ctx;
729:
730: /* Set up V3 context struct */
731:
732: X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
733: X509V3_set_nconf(&ext_ctx, req_conf);
734:
735: /* Add extensions */
736: if (req_exts && !X509V3_EXT_REQ_add_nconf(req_conf,
737: &ext_ctx, req_exts, req)) {
738: BIO_printf(bio_err,
739: "Error Loading extension section %s\n",
740: req_exts);
741: goto end;
742: }
743: i = do_X509_REQ_sign(bio_err, req, pkey, digest, sigopts);
744: if (!i) {
745: ERR_print_errors(bio_err);
746: goto end;
747: }
748: }
749: }
750: if (subj && x509) {
751: BIO_printf(bio_err, "Cannot modifiy certificate subject\n");
752: goto end;
753: }
754: if (subj && !x509) {
755: if (verbose) {
756: BIO_printf(bio_err, "Modifying Request's Subject\n");
757: print_name(bio_err, "old subject=", X509_REQ_get_subject_name(req), nmflag);
758: }
759: if (build_subject(req, subj, chtype, multirdn) == 0) {
760: BIO_printf(bio_err, "ERROR: cannot modify subject\n");
761: ex = 1;
762: goto end;
763: }
764: req->req_info->enc.modified = 1;
765:
766: if (verbose) {
767: print_name(bio_err, "new subject=", X509_REQ_get_subject_name(req), nmflag);
768: }
769: }
770: if (verify && !x509) {
771: int tmp = 0;
772:
773: if (pkey == NULL) {
774: pkey = X509_REQ_get_pubkey(req);
775: tmp = 1;
776: if (pkey == NULL)
777: goto end;
778: }
779: i = X509_REQ_verify(req, pkey);
780: if (tmp) {
781: EVP_PKEY_free(pkey);
782: pkey = NULL;
783: }
784: if (i < 0) {
785: goto end;
786: } else if (i == 0) {
787: BIO_printf(bio_err, "verify failure\n");
788: ERR_print_errors(bio_err);
789: } else /* if (i > 0) */
790: BIO_printf(bio_err, "verify OK\n");
791: }
792: if (noout && !text && !modulus && !subject && !pubkey) {
793: ex = 0;
794: goto end;
795: }
796: if (outfile == NULL) {
797: BIO_set_fp(out, stdout, BIO_NOCLOSE);
798: } else {
799: if ((keyout != NULL) && (strcmp(outfile, keyout) == 0))
800: i = (int) BIO_append_filename(out, outfile);
801: else
802: i = (int) BIO_write_filename(out, outfile);
803: if (!i) {
804: perror(outfile);
805: goto end;
806: }
807: }
808:
809: if (pubkey) {
810: EVP_PKEY *tpubkey;
811: tpubkey = X509_REQ_get_pubkey(req);
812: if (tpubkey == NULL) {
813: BIO_printf(bio_err, "Error getting public key\n");
814: ERR_print_errors(bio_err);
815: goto end;
816: }
817: PEM_write_bio_PUBKEY(out, tpubkey);
818: EVP_PKEY_free(tpubkey);
819: }
820: if (text) {
821: if (x509)
822: X509_print_ex(out, x509ss, nmflag, reqflag);
823: else
824: X509_REQ_print_ex(out, req, nmflag, reqflag);
825: }
826: if (subject) {
827: if (x509)
828: print_name(out, "subject=", X509_get_subject_name(x509ss), nmflag);
829: else
830: print_name(out, "subject=", X509_REQ_get_subject_name(req), nmflag);
831: }
832: if (modulus) {
833: EVP_PKEY *tpubkey;
834:
835: if (x509)
836: tpubkey = X509_get_pubkey(x509ss);
837: else
838: tpubkey = X509_REQ_get_pubkey(req);
839: if (tpubkey == NULL) {
840: fprintf(stdout, "Modulus=unavailable\n");
841: goto end;
842: }
843: fprintf(stdout, "Modulus=");
844: if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA)
845: BN_print(out, tpubkey->pkey.rsa->n);
846: else
847: fprintf(stdout, "Wrong Algorithm type");
848: EVP_PKEY_free(tpubkey);
849: fprintf(stdout, "\n");
850: }
851: if (!noout && !x509) {
852: if (outformat == FORMAT_ASN1)
853: i = i2d_X509_REQ_bio(out, req);
854: else if (outformat == FORMAT_PEM) {
855: if (newhdr)
856: i = PEM_write_bio_X509_REQ_NEW(out, req);
857: else
858: i = PEM_write_bio_X509_REQ(out, req);
859: } else {
860: BIO_printf(bio_err, "bad output format specified for outfile\n");
861: goto end;
862: }
863: if (!i) {
864: BIO_printf(bio_err, "unable to write X509 request\n");
865: goto end;
866: }
867: }
868: if (!noout && x509 && (x509ss != NULL)) {
869: if (outformat == FORMAT_ASN1)
870: i = i2d_X509_bio(out, x509ss);
871: else if (outformat == FORMAT_PEM)
872: i = PEM_write_bio_X509(out, x509ss);
873: else {
874: BIO_printf(bio_err, "bad output format specified for outfile\n");
875: goto end;
876: }
877: if (!i) {
878: BIO_printf(bio_err, "unable to write X509 certificate\n");
879: goto end;
880: }
881: }
882: ex = 0;
883: end:
884: if (ex) {
885: ERR_print_errors(bio_err);
886: }
887: if ((req_conf != NULL) && (req_conf != config))
888: NCONF_free(req_conf);
889: BIO_free(in);
890: BIO_free_all(out);
891: EVP_PKEY_free(pkey);
892: if (genctx)
893: EVP_PKEY_CTX_free(genctx);
894: if (pkeyopts)
895: sk_OPENSSL_STRING_free(pkeyopts);
896: if (sigopts)
897: sk_OPENSSL_STRING_free(sigopts);
898: #ifndef OPENSSL_NO_ENGINE
899: if (gen_eng)
900: ENGINE_free(gen_eng);
901: #endif
902: free(keyalgstr);
903: X509_REQ_free(req);
904: X509_free(x509ss);
905: ASN1_INTEGER_free(serial);
906: if (passargin && passin)
907: free(passin);
908: if (passargout && passout)
909: free(passout);
910: OBJ_cleanup();
911:
912: return (ex);
913: }
914:
915: static int
916: make_REQ(X509_REQ * req, EVP_PKEY * pkey, char *subj, int multirdn,
917: int attribs, unsigned long chtype)
918: {
919: int ret = 0, i;
920: char no_prompt = 0;
921: STACK_OF(CONF_VALUE) * dn_sk, *attr_sk = NULL;
922: char *tmp, *dn_sect, *attr_sect;
923:
924: tmp = NCONF_get_string(req_conf, SECTION, PROMPT);
925: if (tmp == NULL)
926: ERR_clear_error();
927: if ((tmp != NULL) && !strcmp(tmp, "no"))
928: no_prompt = 1;
929:
930: dn_sect = NCONF_get_string(req_conf, SECTION, DISTINGUISHED_NAME);
931: if (dn_sect == NULL) {
932: BIO_printf(bio_err, "unable to find '%s' in config\n",
933: DISTINGUISHED_NAME);
934: goto err;
935: }
936: dn_sk = NCONF_get_section(req_conf, dn_sect);
937: if (dn_sk == NULL) {
938: BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect);
939: goto err;
940: }
941: attr_sect = NCONF_get_string(req_conf, SECTION, ATTRIBUTES);
942: if (attr_sect == NULL) {
943: ERR_clear_error();
944: attr_sk = NULL;
945: } else {
946: attr_sk = NCONF_get_section(req_conf, attr_sect);
947: if (attr_sk == NULL) {
948: BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect);
949: goto err;
950: }
951: }
952:
953: /* setup version number */
954: if (!X509_REQ_set_version(req, 0L))
955: goto err; /* version 1 */
956:
957: if (no_prompt)
958: i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
959: else {
960: if (subj)
961: i = build_subject(req, subj, chtype, multirdn);
962: else
963: i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs, chtype);
964: }
965: if (!i)
966: goto err;
967:
968: if (!X509_REQ_set_pubkey(req, pkey))
969: goto err;
970:
971: ret = 1;
972: err:
973: return (ret);
974: }
975:
976: /*
977: * subject is expected to be in the format /type0=value0/type1=value1/type2=...
978: * where characters may be escaped by \
979: */
980: static int
981: build_subject(X509_REQ * req, char *subject, unsigned long chtype, int multirdn)
982: {
983: X509_NAME *n;
984:
985: if (!(n = parse_name(subject, chtype, multirdn)))
986: return 0;
987:
988: if (!X509_REQ_set_subject_name(req, n)) {
989: X509_NAME_free(n);
990: return 0;
991: }
992: X509_NAME_free(n);
993: return 1;
994: }
995:
996:
997: static int
998: prompt_info(X509_REQ * req,
999: STACK_OF(CONF_VALUE) * dn_sk, char *dn_sect,
1000: STACK_OF(CONF_VALUE) * attr_sk, char *attr_sect, int attribs,
1001: unsigned long chtype)
1002: {
1003: int i;
1004: char *p, *q;
1005: char buf[100];
1006: int nid, mval;
1007: long n_min, n_max;
1008: char *type, *value;
1009: const char *def;
1010: CONF_VALUE *v;
1011: X509_NAME *subj;
1012: subj = X509_REQ_get_subject_name(req);
1013:
1014: if (!batch) {
1015: BIO_printf(bio_err, "You are about to be asked to enter information that will be incorporated\n");
1016: BIO_printf(bio_err, "into your certificate request.\n");
1017: BIO_printf(bio_err, "What you are about to enter is what is called a Distinguished Name or a DN.\n");
1018: BIO_printf(bio_err, "There are quite a few fields but you can leave some blank\n");
1019: BIO_printf(bio_err, "For some fields there will be a default value,\n");
1020: BIO_printf(bio_err, "If you enter '.', the field will be left blank.\n");
1021: BIO_printf(bio_err, "-----\n");
1022: }
1023: if (sk_CONF_VALUE_num(dn_sk)) {
1024: i = -1;
1025: start: for (;;) {
1026: int ret;
1027: i++;
1028: if (sk_CONF_VALUE_num(dn_sk) <= i)
1029: break;
1030:
1031: v = sk_CONF_VALUE_value(dn_sk, i);
1032: p = q = NULL;
1033: type = v->name;
1034: if (!check_end(type, "_min") || !check_end(type, "_max") ||
1035: !check_end(type, "_default") ||
1036: !check_end(type, "_value"))
1037: continue;
1038: /*
1039: * Skip past any leading X. X: X, etc to allow for
1040: * multiple instances
1041: */
1042: for (p = v->name; *p; p++)
1043: if ((*p == ':') || (*p == ',') ||
1044: (*p == '.')) {
1045: p++;
1046: if (*p)
1047: type = p;
1048: break;
1049: }
1050: if (*type == '+') {
1051: mval = -1;
1052: type++;
1053: } else
1054: mval = 0;
1055: /* If OBJ not recognised ignore it */
1056: if ((nid = OBJ_txt2nid(type)) == NID_undef)
1057: goto start;
1058: ret = snprintf(buf, sizeof buf, "%s_default", v->name);
1059: if (ret == -1 || ret >= sizeof(buf)) {
1060: BIO_printf(bio_err, "Name '%s' too long for default\n",
1061: v->name);
1062: return 0;
1063: }
1064: if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1065: ERR_clear_error();
1066: def = "";
1067: }
1068: ret = snprintf(buf, sizeof buf, "%s_value", v->name);
1069: if (ret == -1 || ret >= sizeof(buf)) {
1070: BIO_printf(bio_err, "Name '%s' too long for value\n",
1071: v->name);
1072: return 0;
1073: }
1074: if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1075: ERR_clear_error();
1076: value = NULL;
1077: }
1078: ret = snprintf(buf, sizeof buf, "%s_min", v->name);
1079: if (ret == -1 || ret >= sizeof(buf)) {
1080: BIO_printf(bio_err, "Name '%s' too long for min\n",
1081: v->name);
1082: return 0;
1083: }
1084: if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1085: ERR_clear_error();
1086: n_min = -1;
1087: }
1088: ret = snprintf(buf, sizeof buf, "%s_max", v->name);
1089: if (ret == -1 || ret >= sizeof(buf)) {
1090: BIO_printf(bio_err, "Name '%s' too long for max\n",
1091: v->name);
1092: return 0;
1093: }
1094: if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1095: ERR_clear_error();
1096: n_max = -1;
1097: }
1098: if (!add_DN_object(subj, v->value, def, value, nid,
1099: n_min, n_max, chtype, mval))
1100: return 0;
1101: }
1102: if (X509_NAME_entry_count(subj) == 0) {
1103: BIO_printf(bio_err, "error, no objects specified in config file\n");
1104: return 0;
1105: }
1106: if (attribs) {
1107: if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0) &&
1108: (!batch)) {
1109: BIO_printf(bio_err,
1110: "\nPlease enter the following 'extra' attributes\n");
1111: BIO_printf(bio_err,
1112: "to be sent with your certificate request\n");
1113: }
1114: i = -1;
1115: start2: for (;;) {
1116: int ret;
1117: i++;
1118: if ((attr_sk == NULL) ||
1119: (sk_CONF_VALUE_num(attr_sk) <= i))
1120: break;
1121:
1122: v = sk_CONF_VALUE_value(attr_sk, i);
1123: type = v->name;
1124: if ((nid = OBJ_txt2nid(type)) == NID_undef)
1125: goto start2;
1126: ret = snprintf(buf, sizeof buf, "%s_default", type);
1127: if (ret == -1 || ret >= sizeof(buf)) {
1128: BIO_printf(bio_err, "Name '%s' too long for default\n",
1129: v->name);
1130: return 0;
1131: }
1132: if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1133: == NULL) {
1134: ERR_clear_error();
1135: def = "";
1136: }
1137: ret = snprintf(buf, sizeof buf, "%s_value", type);
1138: if (ret == -1 || ret >= sizeof(buf)) {
1139: BIO_printf(bio_err, "Name '%s' too long for value\n",
1140: v->name);
1141: return 0;
1142: }
1143: if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1144: == NULL) {
1145: ERR_clear_error();
1146: value = NULL;
1147: }
1148: ret = snprintf(buf, sizeof buf, "%s_min", type);
1149: if (ret == -1 || ret >= sizeof(buf)) {
1150: BIO_printf(bio_err, "Name '%s' too long for min\n",
1151: v->name);
1152: return 0;
1153: }
1154: if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1155: ERR_clear_error();
1156: n_min = -1;
1157: }
1158: ret = snprintf(buf, sizeof buf, "%s_max", type);
1159: if (ret == -1 || ret >= sizeof(buf)) {
1160: BIO_printf(bio_err, "Name '%s' too long for max\n",
1161: v->name);
1162: return 0;
1163: }
1164: if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1165: ERR_clear_error();
1166: n_max = -1;
1167: }
1168: if (!add_attribute_object(req,
1169: v->value, def, value, nid, n_min, n_max, chtype))
1170: return 0;
1171: }
1172: }
1173: } else {
1174: BIO_printf(bio_err, "No template, please set one up.\n");
1175: return 0;
1176: }
1177:
1178: return 1;
1179:
1180: }
1181:
1182: static int
1183: auto_info(X509_REQ * req, STACK_OF(CONF_VALUE) * dn_sk,
1184: STACK_OF(CONF_VALUE) * attr_sk, int attribs, unsigned long chtype)
1185: {
1186: int i;
1187: char *p, *q;
1188: char *type;
1189: CONF_VALUE *v;
1190: X509_NAME *subj;
1191:
1192: subj = X509_REQ_get_subject_name(req);
1193:
1194: for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1195: int mval;
1196: v = sk_CONF_VALUE_value(dn_sk, i);
1197: p = q = NULL;
1198: type = v->name;
1199: /*
1200: * Skip past any leading X. X: X, etc to allow for multiple
1201: * instances
1202: */
1203: for (p = v->name; *p; p++)
1204: if ((*p == ':') || (*p == ',') || (*p == '.')) {
1205: p++;
1206: if (*p)
1207: type = p;
1208: break;
1209: }
1210: if (*p == '+') {
1211: p++;
1212: mval = -1;
1213: } else
1214: mval = 0;
1215: if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1216: (unsigned char *) v->value, -1, -1, mval))
1217: return 0;
1218:
1219: }
1220:
1221: if (!X509_NAME_entry_count(subj)) {
1222: BIO_printf(bio_err, "error, no objects specified in config file\n");
1223: return 0;
1224: }
1225: if (attribs) {
1226: for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1227: v = sk_CONF_VALUE_value(attr_sk, i);
1228: if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1229: (unsigned char *) v->value, -1))
1230: return 0;
1231: }
1232: }
1233: return 1;
1234: }
1235:
1236:
1237: static int
1238: add_DN_object(X509_NAME * n, char *text, const char *def, char *value,
1239: int nid, int n_min, int n_max, unsigned long chtype, int mval)
1240: {
1241: int i, ret = 0;
1242: char buf[1024];
1243: start:
1244: if (!batch)
1245: BIO_printf(bio_err, "%s [%s]:", text, def);
1246: (void) BIO_flush(bio_err);
1247: if (value != NULL) {
1248: strlcpy(buf, value, sizeof buf);
1249: strlcat(buf, "\n", sizeof buf);
1250: BIO_printf(bio_err, "%s\n", value);
1251: } else {
1252: buf[0] = '\0';
1253: if (!batch) {
1254: if (!fgets(buf, sizeof buf, stdin))
1255: return 0;
1256: } else {
1257: buf[0] = '\n';
1258: buf[1] = '\0';
1259: }
1260: }
1261:
1262: if (buf[0] == '\0')
1263: return (0);
1264: else if (buf[0] == '\n') {
1265: if ((def == NULL) || (def[0] == '\0'))
1266: return (1);
1267: strlcpy(buf, def, sizeof buf);
1268: strlcat(buf, "\n", sizeof buf);
1269: } else if ((buf[0] == '.') && (buf[1] == '\n'))
1270: return (1);
1271:
1272: i = strlen(buf);
1273: if (buf[i - 1] != '\n') {
1274: BIO_printf(bio_err, "weird input :-(\n");
1275: return (0);
1276: }
1277: buf[--i] = '\0';
1278: if (!req_check_len(i, n_min, n_max))
1279: goto start;
1280: if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1281: (unsigned char *) buf, -1, -1, mval))
1282: goto err;
1283: ret = 1;
1284: err:
1285: return (ret);
1286: }
1287:
1288: static int
1289: add_attribute_object(X509_REQ * req, char *text, const char *def,
1290: char *value, int nid, int n_min,
1291: int n_max, unsigned long chtype)
1292: {
1293: int i;
1294: static char buf[1024];
1295:
1296: start:
1297: if (!batch)
1298: BIO_printf(bio_err, "%s [%s]:", text, def);
1299: (void) BIO_flush(bio_err);
1300: if (value != NULL) {
1301: strlcpy(buf, value, sizeof buf);
1302: strlcat(buf, "\n", sizeof buf);
1303: BIO_printf(bio_err, "%s\n", value);
1304: } else {
1305: buf[0] = '\0';
1306: if (!batch) {
1307: if (!fgets(buf, sizeof buf, stdin))
1308: return 0;
1309: } else {
1310: buf[0] = '\n';
1311: buf[1] = '\0';
1312: }
1313: }
1314:
1315: if (buf[0] == '\0')
1316: return (0);
1317: else if (buf[0] == '\n') {
1318: if ((def == NULL) || (def[0] == '\0'))
1319: return (1);
1320: strlcpy(buf, def, sizeof buf);
1321: strlcat(buf, "\n", sizeof buf);
1322: } else if ((buf[0] == '.') && (buf[1] == '\n'))
1323: return (1);
1324:
1325: i = strlen(buf);
1326: if (buf[i - 1] != '\n') {
1327: BIO_printf(bio_err, "weird input :-(\n");
1328: return (0);
1329: }
1330: buf[--i] = '\0';
1331: if (!req_check_len(i, n_min, n_max))
1332: goto start;
1333:
1334: if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1335: (unsigned char *) buf, -1)) {
1336: BIO_printf(bio_err, "Error adding attribute\n");
1337: ERR_print_errors(bio_err);
1338: goto err;
1339: }
1340: return (1);
1341: err:
1342: return (0);
1343: }
1344:
1345: static int
1346: req_check_len(int len, int n_min, int n_max)
1347: {
1348: if ((n_min > 0) && (len < n_min)) {
1349: BIO_printf(bio_err, "string is too short, it needs to be at least %d bytes long\n", n_min);
1350: return (0);
1351: }
1352: if ((n_max >= 0) && (len > n_max)) {
1353: BIO_printf(bio_err, "string is too long, it needs to be less than %d bytes long\n", n_max);
1354: return (0);
1355: }
1356: return (1);
1357: }
1358:
1359: /* Check if the end of a string matches 'end' */
1360: static int
1361: check_end(const char *str, const char *end)
1362: {
1363: int elen, slen;
1364: const char *tmp;
1365: elen = strlen(end);
1366: slen = strlen(str);
1367: if (elen > slen)
1368: return 1;
1369: tmp = str + slen - elen;
1370: return strcmp(tmp, end);
1371: }
1372:
1373: static EVP_PKEY_CTX *
1374: set_keygen_ctx(BIO * err, const char *gstr, int *pkey_type,
1375: long *pkeylen, char **palgnam,
1376: ENGINE * keygen_engine)
1377: {
1378: EVP_PKEY_CTX *gctx = NULL;
1379: EVP_PKEY *param = NULL;
1380: long keylen = -1;
1381: BIO *pbio = NULL;
1382: const char *paramfile = NULL;
1383: const char *errstr;
1384:
1385: if (gstr == NULL) {
1386: *pkey_type = EVP_PKEY_RSA;
1387: keylen = *pkeylen;
1388: } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1389: *pkey_type = EVP_PKEY_RSA;
1390: keylen = strtonum(gstr, 0, LONG_MAX, &errstr);
1391: if (errstr) {
1392: BIO_printf(err, "bad algorithm %s: %s\n", gstr, errstr);
1393: return NULL;
1394: }
1395: *pkeylen = keylen;
1396: } else if (!strncmp(gstr, "param:", 6))
1397: paramfile = gstr + 6;
1398: else {
1399: const char *p = strchr(gstr, ':');
1400: int len;
1401: ENGINE *tmpeng;
1402: const EVP_PKEY_ASN1_METHOD *ameth;
1403:
1404: if (p)
1405: len = p - gstr;
1406: else
1407: len = strlen(gstr);
1408: /*
1409: * The lookup of a the string will cover all engines so keep
1410: * a note of the implementation.
1411: */
1412:
1413: ameth = EVP_PKEY_asn1_find_str(&tmpeng, gstr, len);
1414:
1415: if (!ameth) {
1416: BIO_printf(err, "Unknown algorithm %.*s\n", len, gstr);
1417: return NULL;
1418: }
1419: EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL,
1420: ameth);
1421: #ifndef OPENSSL_NO_ENGINE
1422: if (tmpeng)
1423: ENGINE_finish(tmpeng);
1424: #endif
1425: if (*pkey_type == EVP_PKEY_RSA) {
1426: if (p) {
1427: keylen = strtonum(p + 1, 0, LONG_MAX, &errstr);
1428: if (errstr) {
1429: BIO_printf(err, "bad algorithm %s: %s\n",
1430: p + 1, errstr);
1431: return NULL;
1432: }
1433: *pkeylen = keylen;
1434: } else
1435: keylen = *pkeylen;
1436: } else if (p)
1437: paramfile = p + 1;
1438: }
1439:
1440: if (paramfile) {
1441: pbio = BIO_new_file(paramfile, "r");
1442: if (!pbio) {
1443: BIO_printf(err, "Can't open parameter file %s\n",
1444: paramfile);
1445: return NULL;
1446: }
1447: param = PEM_read_bio_Parameters(pbio, NULL);
1448:
1449: if (!param) {
1450: X509 *x;
1451: (void) BIO_reset(pbio);
1452: x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1453: if (x) {
1454: param = X509_get_pubkey(x);
1455: X509_free(x);
1456: }
1457: }
1458: BIO_free(pbio);
1459:
1460: if (!param) {
1461: BIO_printf(err, "Error reading parameter file %s\n",
1462: paramfile);
1463: return NULL;
1464: }
1465: if (*pkey_type == -1)
1466: *pkey_type = EVP_PKEY_id(param);
1467: else if (*pkey_type != EVP_PKEY_base_id(param)) {
1468: BIO_printf(err, "Key Type does not match parameters\n");
1469: EVP_PKEY_free(param);
1470: return NULL;
1471: }
1472: }
1473: if (palgnam) {
1474: const EVP_PKEY_ASN1_METHOD *ameth;
1475: ENGINE *tmpeng;
1476: const char *anam;
1477: ameth = EVP_PKEY_asn1_find(&tmpeng, *pkey_type);
1478: if (!ameth) {
1479: BIO_puts(err, "Internal error: can't find key algorithm\n");
1480: return NULL;
1481: }
1482: EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1483: *palgnam = BUF_strdup(anam);
1484: #ifndef OPENSSL_NO_ENGINE
1485: if (tmpeng)
1486: ENGINE_finish(tmpeng);
1487: #endif
1488: }
1489: if (param) {
1490: gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1491: *pkeylen = EVP_PKEY_bits(param);
1492: EVP_PKEY_free(param);
1493: } else
1494: gctx = EVP_PKEY_CTX_new_id(*pkey_type, keygen_engine);
1495:
1496: if (!gctx) {
1497: BIO_puts(err, "Error allocating keygen context\n");
1498: ERR_print_errors(err);
1499: return NULL;
1500: }
1501: if (EVP_PKEY_keygen_init(gctx) <= 0) {
1502: BIO_puts(err, "Error initializing keygen context\n");
1503: ERR_print_errors(err);
1504: return NULL;
1505: }
1506: if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) {
1507: if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) {
1508: BIO_puts(err, "Error setting RSA keysize\n");
1509: ERR_print_errors(err);
1510: EVP_PKEY_CTX_free(gctx);
1511: return NULL;
1512: }
1513: }
1514:
1515: return gctx;
1516: }
1517:
1518: static int
1519: genpkey_cb(EVP_PKEY_CTX * ctx)
1520: {
1521: char c = '*';
1522: BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1523: int p;
1524: p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1525: if (p == 0)
1526: c = '.';
1527: if (p == 1)
1528: c = '+';
1529: if (p == 2)
1530: c = '*';
1531: if (p == 3)
1532: c = '\n';
1533: BIO_write(b, &c, 1);
1534: (void) BIO_flush(b);
1535: return 1;
1536: }
1537:
1538: static int
1539: do_sign_init(BIO * err, EVP_MD_CTX * ctx, EVP_PKEY * pkey,
1540: const EVP_MD * md, STACK_OF(OPENSSL_STRING) * sigopts)
1541: {
1542: EVP_PKEY_CTX *pkctx = NULL;
1543: int i;
1544: EVP_MD_CTX_init(ctx);
1545: if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey))
1546: return 0;
1547: for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
1548: char *sigopt = sk_OPENSSL_STRING_value(sigopts, i);
1549: if (pkey_ctrl_string(pkctx, sigopt) <= 0) {
1550: BIO_printf(err, "parameter error \"%s\"\n", sigopt);
1551: ERR_print_errors(bio_err);
1552: return 0;
1553: }
1554: }
1555: return 1;
1556: }
1557:
1558: int
1559: do_X509_sign(BIO * err, X509 * x, EVP_PKEY * pkey, const EVP_MD * md,
1560: STACK_OF(OPENSSL_STRING) * sigopts)
1561: {
1562: int rv;
1563: EVP_MD_CTX mctx;
1564: EVP_MD_CTX_init(&mctx);
1565: rv = do_sign_init(err, &mctx, pkey, md, sigopts);
1566: if (rv > 0)
1567: rv = X509_sign_ctx(x, &mctx);
1568: EVP_MD_CTX_cleanup(&mctx);
1569: return rv > 0 ? 1 : 0;
1570: }
1571:
1572:
1573: int
1574: do_X509_REQ_sign(BIO * err, X509_REQ * x, EVP_PKEY * pkey, const EVP_MD * md,
1575: STACK_OF(OPENSSL_STRING) * sigopts)
1576: {
1577: int rv;
1578: EVP_MD_CTX mctx;
1579: EVP_MD_CTX_init(&mctx);
1580: rv = do_sign_init(err, &mctx, pkey, md, sigopts);
1581: if (rv > 0)
1582: rv = X509_REQ_sign_ctx(x, &mctx);
1583: EVP_MD_CTX_cleanup(&mctx);
1584: return rv > 0 ? 1 : 0;
1585: }
1586:
1587:
1588:
1589: int
1590: do_X509_CRL_sign(BIO * err, X509_CRL * x, EVP_PKEY * pkey, const EVP_MD * md,
1591: STACK_OF(OPENSSL_STRING) * sigopts)
1592: {
1593: int rv;
1594: EVP_MD_CTX mctx;
1595: EVP_MD_CTX_init(&mctx);
1596: rv = do_sign_init(err, &mctx, pkey, md, sigopts);
1597: if (rv > 0)
1598: rv = X509_CRL_sign_ctx(x, &mctx);
1599: EVP_MD_CTX_cleanup(&mctx);
1600: return rv > 0 ? 1 : 0;
1601: }