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source: vbox/trunk/src/libs/openssl-1.1.1l/apps/req.c@ 95000

Last change on this file since 95000 was 91772, checked in by vboxsync, 3 years ago

openssl-1.1.1l: Applied and adjusted our OpenSSL changes to 1.1.1l. bugref:10126
File size: 51.5 KB
Line 
1/*
2 * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include <stdio.h>
11#include <stdlib.h>
12#include <time.h>
13#include <string.h>
14#include <ctype.h>
15#include "apps.h"
16#include "progs.h"
17#include <openssl/bio.h>
18#include <openssl/evp.h>
19#include <openssl/conf.h>
20#include <openssl/err.h>
21#include <openssl/asn1.h>
22#include <openssl/x509.h>
23#include <openssl/x509v3.h>
24#include <openssl/objects.h>
25#include <openssl/pem.h>
26#include <openssl/bn.h>
27#include <openssl/lhash.h>
28#ifndef OPENSSL_NO_RSA
29# include <openssl/rsa.h>
30#endif
31#ifndef OPENSSL_NO_DSA
32# include <openssl/dsa.h>
33#endif
34
35#define SECTION "req"
36
37#define BITS "default_bits"
38#define KEYFILE "default_keyfile"
39#define PROMPT "prompt"
40#define DISTINGUISHED_NAME "distinguished_name"
41#define ATTRIBUTES "attributes"
42#define V3_EXTENSIONS "x509_extensions"
43#define REQ_EXTENSIONS "req_extensions"
44#define STRING_MASK "string_mask"
45#define UTF8_IN "utf8"
46
47#define DEFAULT_KEY_LENGTH 2048
48#define MIN_KEY_LENGTH 512
49
50static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *dn, int mutlirdn,
51 int attribs, unsigned long chtype);
52static int build_subject(X509_REQ *req, const char *subj, unsigned long chtype,
53 int multirdn);
54static int prompt_info(X509_REQ *req,
55 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
56 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
57 int attribs, unsigned long chtype);
58static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
59 STACK_OF(CONF_VALUE) *attr, int attribs,
60 unsigned long chtype);
61static int add_attribute_object(X509_REQ *req, char *text, const char *def,
62 char *value, int nid, int n_min, int n_max,
63 unsigned long chtype);
64static int add_DN_object(X509_NAME *n, char *text, const char *def,
65 char *value, int nid, int n_min, int n_max,
66 unsigned long chtype, int mval);
67static int genpkey_cb(EVP_PKEY_CTX *ctx);
68static int build_data(char *text, const char *def,
69 char *value, int n_min, int n_max,
70 char *buf, const int buf_size,
71 const char *desc1, const char *desc2
72 );
73static int req_check_len(int len, int n_min, int n_max);
74static int check_end(const char *str, const char *end);
75static int join(char buf[], size_t buf_size, const char *name,
76 const char *tail, const char *desc);
77static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
78 int *pkey_type, long *pkeylen,
79 char **palgnam, ENGINE *keygen_engine);
80static CONF *req_conf = NULL;
81static CONF *addext_conf = NULL;
82static int batch = 0;
83
84typedef enum OPTION_choice {
85 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
86 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_KEYGEN_ENGINE, OPT_KEY,
87 OPT_PUBKEY, OPT_NEW, OPT_CONFIG, OPT_KEYFORM, OPT_IN, OPT_OUT,
88 OPT_KEYOUT, OPT_PASSIN, OPT_PASSOUT, OPT_NEWKEY,
89 OPT_PKEYOPT, OPT_SIGOPT, OPT_BATCH, OPT_NEWHDR, OPT_MODULUS,
90 OPT_VERIFY, OPT_NODES, OPT_NOOUT, OPT_VERBOSE, OPT_UTF8,
91 OPT_NAMEOPT, OPT_REQOPT, OPT_SUBJ, OPT_SUBJECT, OPT_TEXT, OPT_X509,
92 OPT_MULTIVALUE_RDN, OPT_DAYS, OPT_SET_SERIAL, OPT_ADDEXT, OPT_EXTENSIONS,
93 OPT_REQEXTS, OPT_PRECERT, OPT_MD,
94 OPT_R_ENUM
95} OPTION_CHOICE;
96
97const OPTIONS req_options[] = {
98 {"help", OPT_HELP, '-', "Display this summary"},
99 {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
100 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
101 {"in", OPT_IN, '<', "Input file"},
102 {"out", OPT_OUT, '>', "Output file"},
103 {"key", OPT_KEY, 's', "Private key to use"},
104 {"keyform", OPT_KEYFORM, 'f', "Key file format"},
105 {"pubkey", OPT_PUBKEY, '-', "Output public key"},
106 {"new", OPT_NEW, '-', "New request"},
107 {"config", OPT_CONFIG, '<', "Request template file"},
108 {"keyout", OPT_KEYOUT, '>', "File to send the key to"},
109 {"passin", OPT_PASSIN, 's', "Private key password source"},
110 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
111 OPT_R_OPTIONS,
112 {"newkey", OPT_NEWKEY, 's', "Specify as type:bits"},
113 {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
114 {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"},
115 {"batch", OPT_BATCH, '-',
116 "Do not ask anything during request generation"},
117 {"newhdr", OPT_NEWHDR, '-', "Output \"NEW\" in the header lines"},
118 {"modulus", OPT_MODULUS, '-', "RSA modulus"},
119 {"verify", OPT_VERIFY, '-', "Verify signature on REQ"},
120 {"nodes", OPT_NODES, '-', "Don't encrypt the output key"},
121 {"noout", OPT_NOOUT, '-', "Do not output REQ"},
122 {"verbose", OPT_VERBOSE, '-', "Verbose output"},
123 {"utf8", OPT_UTF8, '-', "Input characters are UTF8 (default ASCII)"},
124 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
125 {"reqopt", OPT_REQOPT, 's', "Various request text options"},
126 {"text", OPT_TEXT, '-', "Text form of request"},
127 {"x509", OPT_X509, '-',
128 "Output a x509 structure instead of a cert request"},
129 {OPT_MORE_STR, 1, 1, "(Required by some CA's)"},
130 {"subj", OPT_SUBJ, 's', "Set or modify request subject"},
131 {"subject", OPT_SUBJECT, '-', "Output the request's subject"},
132 {"multivalue-rdn", OPT_MULTIVALUE_RDN, '-',
133 "Enable support for multivalued RDNs"},
134 {"days", OPT_DAYS, 'p', "Number of days cert is valid for"},
135 {"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"},
136 {"addext", OPT_ADDEXT, 's',
137 "Additional cert extension key=value pair (may be given more than once)"},
138 {"extensions", OPT_EXTENSIONS, 's',
139 "Cert extension section (override value in config file)"},
140 {"reqexts", OPT_REQEXTS, 's',
141 "Request extension section (override value in config file)"},
142 {"precert", OPT_PRECERT, '-', "Add a poison extension (implies -new)"},
143 {"", OPT_MD, '-', "Any supported digest"},
144#ifndef OPENSSL_NO_ENGINE
145 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
146 {"keygen_engine", OPT_KEYGEN_ENGINE, 's',
147 "Specify engine to be used for key generation operations"},
148#endif
149 {NULL}
150};
151
152
153/*
154 * An LHASH of strings, where each string is an extension name.
155 */
156static unsigned long ext_name_hash(const OPENSSL_STRING *a)
157{
158 return OPENSSL_LH_strhash((const char *)a);
159}
160
161static int ext_name_cmp(const OPENSSL_STRING *a, const OPENSSL_STRING *b)
162{
163 return strcmp((const char *)a, (const char *)b);
164}
165
166static void exts_cleanup(OPENSSL_STRING *x)
167{
168 OPENSSL_free((char *)x);
169}
170
171/*
172 * Is the |kv| key already duplicated? This is remarkably tricky to get
173 * right. Return 0 if unique, -1 on runtime error; 1 if found or a syntax
174 * error.
175 */
176static int duplicated(LHASH_OF(OPENSSL_STRING) *addexts, char *kv)
177{
178 char *p;
179 size_t off;
180
181 /* Check syntax. */
182 /* Skip leading whitespace, make a copy. */
183 while (*kv && isspace(*kv))
184 if (*++kv == '\0')
185 return 1;
186 if ((p = strchr(kv, '=')) == NULL)
187 return 1;
188 off = p - kv;
189 if ((kv = OPENSSL_strdup(kv)) == NULL)
190 return -1;
191
192 /* Skip trailing space before the equal sign. */
193 for (p = kv + off; p > kv; --p)
194 if (!isspace(p[-1]))
195 break;
196 if (p == kv) {
197 OPENSSL_free(kv);
198 return 1;
199 }
200 *p = '\0';
201
202 /* Finally have a clean "key"; see if it's there [by attempt to add it]. */
203 p = (char *)lh_OPENSSL_STRING_insert(addexts, (OPENSSL_STRING*)kv);
204 if (p != NULL) {
205 OPENSSL_free(p);
206 return 1;
207 } else if (lh_OPENSSL_STRING_error(addexts)) {
208 OPENSSL_free(kv);
209 return -1;
210 }
211
212 return 0;
213}
214
215int req_main(int argc, char **argv)
216{
217 ASN1_INTEGER *serial = NULL;
218 BIO *in = NULL, *out = NULL;
219 ENGINE *e = NULL, *gen_eng = NULL;
220 EVP_PKEY *pkey = NULL;
221 EVP_PKEY_CTX *genctx = NULL;
222 STACK_OF(OPENSSL_STRING) *pkeyopts = NULL, *sigopts = NULL;
223 LHASH_OF(OPENSSL_STRING) *addexts = NULL;
224 X509 *x509ss = NULL;
225 X509_REQ *req = NULL;
226 const EVP_CIPHER *cipher = NULL;
227 const EVP_MD *md_alg = NULL, *digest = NULL;
228 BIO *addext_bio = NULL;
229 char *extensions = NULL, *infile = NULL;
230 char *outfile = NULL, *keyfile = NULL;
231 char *keyalgstr = NULL, *p, *prog, *passargin = NULL, *passargout = NULL;
232 char *passin = NULL, *passout = NULL;
233 char *nofree_passin = NULL, *nofree_passout = NULL;
234 char *req_exts = NULL, *subj = NULL;
235 char *template = default_config_file, *keyout = NULL;
236 const char *keyalg = NULL;
237 OPTION_CHOICE o;
238 int ret = 1, x509 = 0, days = 0, i = 0, newreq = 0, verbose = 0;
239 int pkey_type = -1, private = 0;
240 int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyform = FORMAT_PEM;
241 int modulus = 0, multirdn = 0, verify = 0, noout = 0, text = 0;
242 int nodes = 0, newhdr = 0, subject = 0, pubkey = 0, precert = 0;
243 long newkey = -1;
244 unsigned long chtype = MBSTRING_ASC, reqflag = 0;
245
246#ifndef OPENSSL_NO_DES
247 cipher = EVP_des_ede3_cbc();
248#endif
249
250 prog = opt_init(argc, argv, req_options);
251 while ((o = opt_next()) != OPT_EOF) {
252 switch (o) {
253 case OPT_EOF:
254 case OPT_ERR:
255 opthelp:
256 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
257 goto end;
258 case OPT_HELP:
259 opt_help(req_options);
260 ret = 0;
261 goto end;
262 case OPT_INFORM:
263 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
264 goto opthelp;
265 break;
266 case OPT_OUTFORM:
267 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
268 goto opthelp;
269 break;
270 case OPT_ENGINE:
271 e = setup_engine(opt_arg(), 0);
272 break;
273 case OPT_KEYGEN_ENGINE:
274#ifndef OPENSSL_NO_ENGINE
275 gen_eng = ENGINE_by_id(opt_arg());
276 if (gen_eng == NULL) {
277 BIO_printf(bio_err, "Can't find keygen engine %s\n", *argv);
278 goto opthelp;
279 }
280#endif
281 break;
282 case OPT_KEY:
283 keyfile = opt_arg();
284 break;
285 case OPT_PUBKEY:
286 pubkey = 1;
287 break;
288 case OPT_NEW:
289 newreq = 1;
290 break;
291 case OPT_CONFIG:
292 template = opt_arg();
293 break;
294 case OPT_KEYFORM:
295 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
296 goto opthelp;
297 break;
298 case OPT_IN:
299 infile = opt_arg();
300 break;
301 case OPT_OUT:
302 outfile = opt_arg();
303 break;
304 case OPT_KEYOUT:
305 keyout = opt_arg();
306 break;
307 case OPT_PASSIN:
308 passargin = opt_arg();
309 break;
310 case OPT_PASSOUT:
311 passargout = opt_arg();
312 break;
313 case OPT_R_CASES:
314 if (!opt_rand(o))
315 goto end;
316 break;
317 case OPT_NEWKEY:
318 keyalg = opt_arg();
319 newreq = 1;
320 break;
321 case OPT_PKEYOPT:
322 if (!pkeyopts)
323 pkeyopts = sk_OPENSSL_STRING_new_null();
324 if (!pkeyopts || !sk_OPENSSL_STRING_push(pkeyopts, opt_arg()))
325 goto opthelp;
326 break;
327 case OPT_SIGOPT:
328 if (!sigopts)
329 sigopts = sk_OPENSSL_STRING_new_null();
330 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
331 goto opthelp;
332 break;
333 case OPT_BATCH:
334 batch = 1;
335 break;
336 case OPT_NEWHDR:
337 newhdr = 1;
338 break;
339 case OPT_MODULUS:
340 modulus = 1;
341 break;
342 case OPT_VERIFY:
343 verify = 1;
344 break;
345 case OPT_NODES:
346 nodes = 1;
347 break;
348 case OPT_NOOUT:
349 noout = 1;
350 break;
351 case OPT_VERBOSE:
352 verbose = 1;
353 break;
354 case OPT_UTF8:
355 chtype = MBSTRING_UTF8;
356 break;
357 case OPT_NAMEOPT:
358 if (!set_nameopt(opt_arg()))
359 goto opthelp;
360 break;
361 case OPT_REQOPT:
362 if (!set_cert_ex(&reqflag, opt_arg()))
363 goto opthelp;
364 break;
365 case OPT_TEXT:
366 text = 1;
367 break;
368 case OPT_X509:
369 x509 = 1;
370 break;
371 case OPT_DAYS:
372 days = atoi(opt_arg());
373 break;
374 case OPT_SET_SERIAL:
375 if (serial != NULL) {
376 BIO_printf(bio_err, "Serial number supplied twice\n");
377 goto opthelp;
378 }
379 serial = s2i_ASN1_INTEGER(NULL, opt_arg());
380 if (serial == NULL)
381 goto opthelp;
382 break;
383 case OPT_SUBJECT:
384 subject = 1;
385 break;
386 case OPT_SUBJ:
387 subj = opt_arg();
388 break;
389 case OPT_MULTIVALUE_RDN:
390 multirdn = 1;
391 break;
392 case OPT_ADDEXT:
393 p = opt_arg();
394 if (addexts == NULL) {
395 addexts = lh_OPENSSL_STRING_new(ext_name_hash, ext_name_cmp);
396 addext_bio = BIO_new(BIO_s_mem());
397 if (addexts == NULL || addext_bio == NULL)
398 goto end;
399 }
400 i = duplicated(addexts, p);
401 if (i == 1)
402 goto opthelp;
403 if (i < 0 || BIO_printf(addext_bio, "%s\n", opt_arg()) < 0)
404 goto end;
405 break;
406 case OPT_EXTENSIONS:
407 extensions = opt_arg();
408 break;
409 case OPT_REQEXTS:
410 req_exts = opt_arg();
411 break;
412 case OPT_PRECERT:
413 newreq = precert = 1;
414 break;
415 case OPT_MD:
416 if (!opt_md(opt_unknown(), &md_alg))
417 goto opthelp;
418 digest = md_alg;
419 break;
420 }
421 }
422 argc = opt_num_rest();
423 if (argc != 0)
424 goto opthelp;
425
426 if (days && !x509)
427 BIO_printf(bio_err, "Ignoring -days; not generating a certificate\n");
428 if (x509 && infile == NULL)
429 newreq = 1;
430
431 /* TODO: simplify this as pkey is still always NULL here */
432 private = newreq && (pkey == NULL) ? 1 : 0;
433
434 if (!app_passwd(passargin, passargout, &passin, &passout)) {
435 BIO_printf(bio_err, "Error getting passwords\n");
436 goto end;
437 }
438
439 if (verbose)
440 BIO_printf(bio_err, "Using configuration from %s\n", template);
441 if ((req_conf = app_load_config(template)) == NULL)
442 goto end;
443 if (addext_bio) {
444 if (verbose)
445 BIO_printf(bio_err,
446 "Using additional configuration from command line\n");
447 if ((addext_conf = app_load_config_bio(addext_bio, NULL)) == NULL)
448 goto end;
449 }
450 if (template != default_config_file && !app_load_modules(req_conf))
451 goto end;
452
453 if (req_conf != NULL) {
454 p = NCONF_get_string(req_conf, NULL, "oid_file");
455 if (p == NULL)
456 ERR_clear_error();
457 if (p != NULL) {
458 BIO *oid_bio;
459
460 oid_bio = BIO_new_file(p, "r");
461 if (oid_bio == NULL) {
462 /*-
463 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
464 ERR_print_errors(bio_err);
465 */
466 } else {
467 OBJ_create_objects(oid_bio);
468 BIO_free(oid_bio);
469 }
470 }
471 }
472 if (!add_oid_section(req_conf))
473 goto end;
474
475 if (md_alg == NULL) {
476 p = NCONF_get_string(req_conf, SECTION, "default_md");
477 if (p == NULL) {
478 ERR_clear_error();
479 } else {
480 if (!opt_md(p, &md_alg))
481 goto opthelp;
482 digest = md_alg;
483 }
484 }
485
486 if (extensions == NULL) {
487 extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
488 if (extensions == NULL)
489 ERR_clear_error();
490 }
491 if (extensions != NULL) {
492 /* Check syntax of file */
493 X509V3_CTX ctx;
494 X509V3_set_ctx_test(&ctx);
495 X509V3_set_nconf(&ctx, req_conf);
496 if (!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) {
497 BIO_printf(bio_err,
498 "Error Loading extension section %s\n", extensions);
499 goto end;
500 }
501 }
502 if (addext_conf != NULL) {
503 /* Check syntax of command line extensions */
504 X509V3_CTX ctx;
505 X509V3_set_ctx_test(&ctx);
506 X509V3_set_nconf(&ctx, addext_conf);
507 if (!X509V3_EXT_add_nconf(addext_conf, &ctx, "default", NULL)) {
508 BIO_printf(bio_err, "Error Loading command line extensions\n");
509 goto end;
510 }
511 }
512
513 if (passin == NULL) {
514 passin = nofree_passin =
515 NCONF_get_string(req_conf, SECTION, "input_password");
516 if (passin == NULL)
517 ERR_clear_error();
518 }
519
520 if (passout == NULL) {
521 passout = nofree_passout =
522 NCONF_get_string(req_conf, SECTION, "output_password");
523 if (passout == NULL)
524 ERR_clear_error();
525 }
526
527 p = NCONF_get_string(req_conf, SECTION, STRING_MASK);
528 if (p == NULL)
529 ERR_clear_error();
530
531 if (p != NULL && !ASN1_STRING_set_default_mask_asc(p)) {
532 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
533 goto end;
534 }
535
536 if (chtype != MBSTRING_UTF8) {
537 p = NCONF_get_string(req_conf, SECTION, UTF8_IN);
538 if (p == NULL)
539 ERR_clear_error();
540 else if (strcmp(p, "yes") == 0)
541 chtype = MBSTRING_UTF8;
542 }
543
544 if (req_exts == NULL) {
545 req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
546 if (req_exts == NULL)
547 ERR_clear_error();
548 }
549 if (req_exts != NULL) {
550 /* Check syntax of file */
551 X509V3_CTX ctx;
552 X509V3_set_ctx_test(&ctx);
553 X509V3_set_nconf(&ctx, req_conf);
554 if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) {
555 BIO_printf(bio_err,
556 "Error Loading request extension section %s\n",
557 req_exts);
558 goto end;
559 }
560 }
561
562 if (keyfile != NULL) {
563 pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key");
564 if (pkey == NULL) {
565 /* load_key() has already printed an appropriate message */
566 goto end;
567 } else {
568 app_RAND_load_conf(req_conf, SECTION);
569 }
570 }
571
572 if (newreq && (pkey == NULL)) {
573 app_RAND_load_conf(req_conf, SECTION);
574
575 if (!NCONF_get_number(req_conf, SECTION, BITS, &newkey)) {
576 newkey = DEFAULT_KEY_LENGTH;
577 }
578
579 if (keyalg != NULL) {
580 genctx = set_keygen_ctx(keyalg, &pkey_type, &newkey,
581 &keyalgstr, gen_eng);
582 if (genctx == NULL)
583 goto end;
584 }
585
586 if (newkey < MIN_KEY_LENGTH
587 && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) {
588 BIO_printf(bio_err, "private key length is too short,\n");
589 BIO_printf(bio_err, "it needs to be at least %d bits, not %ld\n",
590 MIN_KEY_LENGTH, newkey);
591 goto end;
592 }
593
594 if (pkey_type == EVP_PKEY_RSA && newkey > OPENSSL_RSA_MAX_MODULUS_BITS)
595 BIO_printf(bio_err,
596 "Warning: It is not recommended to use more than %d bit for RSA keys.\n"
597 " Your key size is %ld! Larger key size may behave not as expected.\n",
598 OPENSSL_RSA_MAX_MODULUS_BITS, newkey);
599
600#ifndef OPENSSL_NO_DSA
601 if (pkey_type == EVP_PKEY_DSA && newkey > OPENSSL_DSA_MAX_MODULUS_BITS)
602 BIO_printf(bio_err,
603 "Warning: It is not recommended to use more than %d bit for DSA keys.\n"
604 " Your key size is %ld! Larger key size may behave not as expected.\n",
605 OPENSSL_DSA_MAX_MODULUS_BITS, newkey);
606#endif
607
608 if (genctx == NULL) {
609 genctx = set_keygen_ctx(NULL, &pkey_type, &newkey,
610 &keyalgstr, gen_eng);
611 if (!genctx)
612 goto end;
613 }
614
615 if (pkeyopts != NULL) {
616 char *genopt;
617 for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) {
618 genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
619 if (pkey_ctrl_string(genctx, genopt) <= 0) {
620 BIO_printf(bio_err, "parameter error \"%s\"\n", genopt);
621 ERR_print_errors(bio_err);
622 goto end;
623 }
624 }
625 }
626
627 if (pkey_type == EVP_PKEY_EC) {
628 BIO_printf(bio_err, "Generating an EC private key\n");
629 } else {
630 BIO_printf(bio_err, "Generating a %s private key\n", keyalgstr);
631 }
632
633 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
634 EVP_PKEY_CTX_set_app_data(genctx, bio_err);
635
636 if (EVP_PKEY_keygen(genctx, &pkey) <= 0) {
637 BIO_puts(bio_err, "Error Generating Key\n");
638 goto end;
639 }
640
641 EVP_PKEY_CTX_free(genctx);
642 genctx = NULL;
643
644 if (keyout == NULL) {
645 keyout = NCONF_get_string(req_conf, SECTION, KEYFILE);
646 if (keyout == NULL)
647 ERR_clear_error();
648 }
649
650 if (keyout == NULL)
651 BIO_printf(bio_err, "writing new private key to stdout\n");
652 else
653 BIO_printf(bio_err, "writing new private key to '%s'\n", keyout);
654 out = bio_open_owner(keyout, outformat, private);
655 if (out == NULL)
656 goto end;
657
658 p = NCONF_get_string(req_conf, SECTION, "encrypt_rsa_key");
659 if (p == NULL) {
660 ERR_clear_error();
661 p = NCONF_get_string(req_conf, SECTION, "encrypt_key");
662 if (p == NULL)
663 ERR_clear_error();
664 }
665 if ((p != NULL) && (strcmp(p, "no") == 0))
666 cipher = NULL;
667 if (nodes)
668 cipher = NULL;
669
670 i = 0;
671 loop:
672 assert(private);
673 if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
674 NULL, 0, NULL, passout)) {
675 if ((ERR_GET_REASON(ERR_peek_error()) ==
676 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
677 ERR_clear_error();
678 i++;
679 goto loop;
680 }
681 goto end;
682 }
683 BIO_free(out);
684 out = NULL;
685 BIO_printf(bio_err, "-----\n");
686 }
687
688 if (!newreq) {
689 in = bio_open_default(infile, 'r', informat);
690 if (in == NULL)
691 goto end;
692
693 if (informat == FORMAT_ASN1)
694 req = d2i_X509_REQ_bio(in, NULL);
695 else
696 req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
697 if (req == NULL) {
698 BIO_printf(bio_err, "unable to load X509 request\n");
699 goto end;
700 }
701 }
702
703 if (newreq || x509) {
704 if (pkey == NULL) {
705 BIO_printf(bio_err, "you need to specify a private key\n");
706 goto end;
707 }
708
709 if (req == NULL) {
710 req = X509_REQ_new();
711 if (req == NULL) {
712 goto end;
713 }
714
715 i = make_REQ(req, pkey, subj, multirdn, !x509, chtype);
716 subj = NULL; /* done processing '-subj' option */
717 if (!i) {
718 BIO_printf(bio_err, "problems making Certificate Request\n");
719 goto end;
720 }
721 }
722 if (x509) {
723 EVP_PKEY *tmppkey;
724 X509V3_CTX ext_ctx;
725 if ((x509ss = X509_new()) == NULL)
726 goto end;
727
728 /* Set version to V3 */
729 if ((extensions != NULL || addext_conf != NULL)
730 && !X509_set_version(x509ss, 2))
731 goto end;
732 if (serial != NULL) {
733 if (!X509_set_serialNumber(x509ss, serial))
734 goto end;
735 } else {
736 if (!rand_serial(NULL, X509_get_serialNumber(x509ss)))
737 goto end;
738 }
739
740 if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req)))
741 goto end;
742 if (days == 0) {
743 /* set default days if it's not specified */
744 days = 30;
745 }
746 if (!set_cert_times(x509ss, NULL, NULL, days))
747 goto end;
748 if (!X509_set_subject_name
749 (x509ss, X509_REQ_get_subject_name(req)))
750 goto end;
751 tmppkey = X509_REQ_get0_pubkey(req);
752 if (!tmppkey || !X509_set_pubkey(x509ss, tmppkey))
753 goto end;
754
755 /* Set up V3 context struct */
756
757 X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
758 X509V3_set_nconf(&ext_ctx, req_conf);
759
760 /* Add extensions */
761 if (extensions != NULL && !X509V3_EXT_add_nconf(req_conf,
762 &ext_ctx, extensions,
763 x509ss)) {
764 BIO_printf(bio_err, "Error Loading extension section %s\n",
765 extensions);
766 goto end;
767 }
768 if (addext_conf != NULL
769 && !X509V3_EXT_add_nconf(addext_conf, &ext_ctx, "default",
770 x509ss)) {
771 BIO_printf(bio_err, "Error Loading command line extensions\n");
772 goto end;
773 }
774
775 /* If a pre-cert was requested, we need to add a poison extension */
776 if (precert) {
777 if (X509_add1_ext_i2d(x509ss, NID_ct_precert_poison, NULL, 1, 0)
778 != 1) {
779 BIO_printf(bio_err, "Error adding poison extension\n");
780 goto end;
781 }
782 }
783
784 i = do_X509_sign(x509ss, pkey, digest, sigopts);
785 if (!i) {
786 ERR_print_errors(bio_err);
787 goto end;
788 }
789 } else {
790 X509V3_CTX ext_ctx;
791
792 /* Set up V3 context struct */
793
794 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
795 X509V3_set_nconf(&ext_ctx, req_conf);
796
797 /* Add extensions */
798 if (req_exts != NULL
799 && !X509V3_EXT_REQ_add_nconf(req_conf, &ext_ctx,
800 req_exts, req)) {
801 BIO_printf(bio_err, "Error Loading extension section %s\n",
802 req_exts);
803 goto end;
804 }
805 if (addext_conf != NULL
806 && !X509V3_EXT_REQ_add_nconf(addext_conf, &ext_ctx, "default",
807 req)) {
808 BIO_printf(bio_err, "Error Loading command line extensions\n");
809 goto end;
810 }
811 i = do_X509_REQ_sign(req, pkey, digest, sigopts);
812 if (!i) {
813 ERR_print_errors(bio_err);
814 goto end;
815 }
816 }
817 }
818
819 if (subj && x509) {
820 BIO_printf(bio_err, "Cannot modify certificate subject\n");
821 goto end;
822 }
823
824 if (subj && !x509) {
825 if (verbose) {
826 BIO_printf(bio_err, "Modifying Request's Subject\n");
827 print_name(bio_err, "old subject=",
828 X509_REQ_get_subject_name(req), get_nameopt());
829 }
830
831 if (build_subject(req, subj, chtype, multirdn) == 0) {
832 BIO_printf(bio_err, "ERROR: cannot modify subject\n");
833 ret = 1;
834 goto end;
835 }
836
837 if (verbose) {
838 print_name(bio_err, "new subject=",
839 X509_REQ_get_subject_name(req), get_nameopt());
840 }
841 }
842
843 if (verify && !x509) {
844 EVP_PKEY *tpubkey = pkey;
845
846 if (tpubkey == NULL) {
847 tpubkey = X509_REQ_get0_pubkey(req);
848 if (tpubkey == NULL)
849 goto end;
850 }
851
852 i = X509_REQ_verify(req, tpubkey);
853
854 if (i < 0) {
855 goto end;
856 } else if (i == 0) {
857 BIO_printf(bio_err, "verify failure\n");
858 ERR_print_errors(bio_err);
859 } else { /* if (i > 0) */
860 BIO_printf(bio_err, "verify OK\n");
861 }
862 }
863
864 if (noout && !text && !modulus && !subject && !pubkey) {
865 ret = 0;
866 goto end;
867 }
868
869 out = bio_open_default(outfile,
870 keyout != NULL && outfile != NULL &&
871 strcmp(keyout, outfile) == 0 ? 'a' : 'w',
872 outformat);
873 if (out == NULL)
874 goto end;
875
876 if (pubkey) {
877 EVP_PKEY *tpubkey = X509_REQ_get0_pubkey(req);
878
879 if (tpubkey == NULL) {
880 BIO_printf(bio_err, "Error getting public key\n");
881 ERR_print_errors(bio_err);
882 goto end;
883 }
884 PEM_write_bio_PUBKEY(out, tpubkey);
885 }
886
887 if (text) {
888 if (x509)
889 ret = X509_print_ex(out, x509ss, get_nameopt(), reqflag);
890 else
891 ret = X509_REQ_print_ex(out, req, get_nameopt(), reqflag);
892
893 if (ret == 0) {
894 if (x509)
895 BIO_printf(bio_err, "Error printing certificate\n");
896 else
897 BIO_printf(bio_err, "Error printing certificate request\n");
898
899 ERR_print_errors(bio_err);
900 goto end;
901 }
902 }
903
904 if (subject) {
905 if (x509)
906 print_name(out, "subject=", X509_get_subject_name(x509ss),
907 get_nameopt());
908 else
909 print_name(out, "subject=", X509_REQ_get_subject_name(req),
910 get_nameopt());
911 }
912
913 if (modulus) {
914 EVP_PKEY *tpubkey;
915
916 if (x509)
917 tpubkey = X509_get0_pubkey(x509ss);
918 else
919 tpubkey = X509_REQ_get0_pubkey(req);
920 if (tpubkey == NULL) {
921 fprintf(stdout, "Modulus=unavailable\n");
922 goto end;
923 }
924 fprintf(stdout, "Modulus=");
925#ifndef OPENSSL_NO_RSA
926 if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA) {
927 const BIGNUM *n;
928 RSA_get0_key(EVP_PKEY_get0_RSA(tpubkey), &n, NULL, NULL);
929 BN_print(out, n);
930 } else
931#endif
932 fprintf(stdout, "Wrong Algorithm type");
933 fprintf(stdout, "\n");
934 }
935
936 if (!noout && !x509) {
937 if (outformat == FORMAT_ASN1)
938 i = i2d_X509_REQ_bio(out, req);
939 else if (newhdr)
940 i = PEM_write_bio_X509_REQ_NEW(out, req);
941 else
942 i = PEM_write_bio_X509_REQ(out, req);
943 if (!i) {
944 BIO_printf(bio_err, "unable to write X509 request\n");
945 goto end;
946 }
947 }
948 if (!noout && x509 && (x509ss != NULL)) {
949 if (outformat == FORMAT_ASN1)
950 i = i2d_X509_bio(out, x509ss);
951 else
952 i = PEM_write_bio_X509(out, x509ss);
953 if (!i) {
954 BIO_printf(bio_err, "unable to write X509 certificate\n");
955 goto end;
956 }
957 }
958 ret = 0;
959 end:
960 if (ret) {
961 ERR_print_errors(bio_err);
962 }
963 NCONF_free(req_conf);
964 NCONF_free(addext_conf);
965 BIO_free(addext_bio);
966 BIO_free(in);
967 BIO_free_all(out);
968 EVP_PKEY_free(pkey);
969 EVP_PKEY_CTX_free(genctx);
970 sk_OPENSSL_STRING_free(pkeyopts);
971 sk_OPENSSL_STRING_free(sigopts);
972 lh_OPENSSL_STRING_doall(addexts, exts_cleanup);
973 lh_OPENSSL_STRING_free(addexts);
974#ifndef OPENSSL_NO_ENGINE
975 ENGINE_free(gen_eng);
976#endif
977 OPENSSL_free(keyalgstr);
978 X509_REQ_free(req);
979 X509_free(x509ss);
980 ASN1_INTEGER_free(serial);
981 release_engine(e);
982 if (passin != nofree_passin)
983 OPENSSL_free(passin);
984 if (passout != nofree_passout)
985 OPENSSL_free(passout);
986 return ret;
987}
988
989static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *subj, int multirdn,
990 int attribs, unsigned long chtype)
991{
992 int ret = 0, i;
993 char no_prompt = 0;
994 STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
995 char *tmp, *dn_sect, *attr_sect;
996
997 tmp = NCONF_get_string(req_conf, SECTION, PROMPT);
998 if (tmp == NULL)
999 ERR_clear_error();
1000 if ((tmp != NULL) && strcmp(tmp, "no") == 0)
1001 no_prompt = 1;
1002
1003 dn_sect = NCONF_get_string(req_conf, SECTION, DISTINGUISHED_NAME);
1004 if (dn_sect == NULL) {
1005 BIO_printf(bio_err, "unable to find '%s' in config\n",
1006 DISTINGUISHED_NAME);
1007 goto err;
1008 }
1009 dn_sk = NCONF_get_section(req_conf, dn_sect);
1010 if (dn_sk == NULL) {
1011 BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect);
1012 goto err;
1013 }
1014
1015 attr_sect = NCONF_get_string(req_conf, SECTION, ATTRIBUTES);
1016 if (attr_sect == NULL) {
1017 ERR_clear_error();
1018 attr_sk = NULL;
1019 } else {
1020 attr_sk = NCONF_get_section(req_conf, attr_sect);
1021 if (attr_sk == NULL) {
1022 BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect);
1023 goto err;
1024 }
1025 }
1026
1027 /* setup version number */
1028 if (!X509_REQ_set_version(req, 0L))
1029 goto err; /* version 1 */
1030
1031 if (subj)
1032 i = build_subject(req, subj, chtype, multirdn);
1033 else if (no_prompt)
1034 i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
1035 else
1036 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs,
1037 chtype);
1038 if (!i)
1039 goto err;
1040
1041 if (!X509_REQ_set_pubkey(req, pkey))
1042 goto err;
1043
1044 ret = 1;
1045 err:
1046 return ret;
1047}
1048
1049/*
1050 * subject is expected to be in the format /type0=value0/type1=value1/type2=...
1051 * where characters may be escaped by \
1052 */
1053static int build_subject(X509_REQ *req, const char *subject, unsigned long chtype,
1054 int multirdn)
1055{
1056 X509_NAME *n;
1057
1058 if ((n = parse_name(subject, chtype, multirdn)) == NULL)
1059 return 0;
1060
1061 if (!X509_REQ_set_subject_name(req, n)) {
1062 X509_NAME_free(n);
1063 return 0;
1064 }
1065 X509_NAME_free(n);
1066 return 1;
1067}
1068
1069static int prompt_info(X509_REQ *req,
1070 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
1071 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
1072 int attribs, unsigned long chtype)
1073{
1074 int i;
1075 char *p, *q;
1076 char buf[100];
1077 int nid, mval;
1078 long n_min, n_max;
1079 char *type, *value;
1080 const char *def;
1081 CONF_VALUE *v;
1082 X509_NAME *subj;
1083 subj = X509_REQ_get_subject_name(req);
1084
1085 if (!batch) {
1086 BIO_printf(bio_err,
1087 "You are about to be asked to enter information that will be incorporated\n");
1088 BIO_printf(bio_err, "into your certificate request.\n");
1089 BIO_printf(bio_err,
1090 "What you are about to enter is what is called a Distinguished Name or a DN.\n");
1091 BIO_printf(bio_err,
1092 "There are quite a few fields but you can leave some blank\n");
1093 BIO_printf(bio_err,
1094 "For some fields there will be a default value,\n");
1095 BIO_printf(bio_err,
1096 "If you enter '.', the field will be left blank.\n");
1097 BIO_printf(bio_err, "-----\n");
1098 }
1099
1100 if (sk_CONF_VALUE_num(dn_sk)) {
1101 i = -1;
1102 start:
1103 for ( ; ; ) {
1104 i++;
1105 if (sk_CONF_VALUE_num(dn_sk) <= i)
1106 break;
1107
1108 v = sk_CONF_VALUE_value(dn_sk, i);
1109 p = q = NULL;
1110 type = v->name;
1111 if (!check_end(type, "_min") || !check_end(type, "_max") ||
1112 !check_end(type, "_default") || !check_end(type, "_value"))
1113 continue;
1114 /*
1115 * Skip past any leading X. X: X, etc to allow for multiple
1116 * instances
1117 */
1118 for (p = v->name; *p; p++)
1119 if ((*p == ':') || (*p == ',') || (*p == '.')) {
1120 p++;
1121 if (*p)
1122 type = p;
1123 break;
1124 }
1125 if (*type == '+') {
1126 mval = -1;
1127 type++;
1128 } else {
1129 mval = 0;
1130 }
1131 /* If OBJ not recognised ignore it */
1132 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1133 goto start;
1134 if (!join(buf, sizeof(buf), v->name, "_default", "Name"))
1135 return 0;
1136 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1137 ERR_clear_error();
1138 def = "";
1139 }
1140
1141 if (!join(buf, sizeof(buf), v->name, "_value", "Name"))
1142 return 0;
1143 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1144 ERR_clear_error();
1145 value = NULL;
1146 }
1147
1148 if (!join(buf, sizeof(buf), v->name, "_min", "Name"))
1149 return 0;
1150 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1151 ERR_clear_error();
1152 n_min = -1;
1153 }
1154
1155
1156 if (!join(buf, sizeof(buf), v->name, "_max", "Name"))
1157 return 0;
1158 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1159 ERR_clear_error();
1160 n_max = -1;
1161 }
1162
1163 if (!add_DN_object(subj, v->value, def, value, nid,
1164 n_min, n_max, chtype, mval))
1165 return 0;
1166 }
1167 if (X509_NAME_entry_count(subj) == 0) {
1168 BIO_printf(bio_err,
1169 "error, no objects specified in config file\n");
1170 return 0;
1171 }
1172
1173 if (attribs) {
1174 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0)
1175 && (!batch)) {
1176 BIO_printf(bio_err,
1177 "\nPlease enter the following 'extra' attributes\n");
1178 BIO_printf(bio_err,
1179 "to be sent with your certificate request\n");
1180 }
1181
1182 i = -1;
1183 start2:
1184 for ( ; ; ) {
1185 i++;
1186 if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i))
1187 break;
1188
1189 v = sk_CONF_VALUE_value(attr_sk, i);
1190 type = v->name;
1191 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1192 goto start2;
1193
1194 if (!join(buf, sizeof(buf), type, "_default", "Name"))
1195 return 0;
1196 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1197 == NULL) {
1198 ERR_clear_error();
1199 def = "";
1200 }
1201
1202 if (!join(buf, sizeof(buf), type, "_value", "Name"))
1203 return 0;
1204 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1205 == NULL) {
1206 ERR_clear_error();
1207 value = NULL;
1208 }
1209
1210 if (!join(buf, sizeof(buf), type,"_min", "Name"))
1211 return 0;
1212 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1213 ERR_clear_error();
1214 n_min = -1;
1215 }
1216
1217 if (!join(buf, sizeof(buf), type, "_max", "Name"))
1218 return 0;
1219 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1220 ERR_clear_error();
1221 n_max = -1;
1222 }
1223
1224 if (!add_attribute_object(req,
1225 v->value, def, value, nid, n_min,
1226 n_max, chtype))
1227 return 0;
1228 }
1229 }
1230 } else {
1231 BIO_printf(bio_err, "No template, please set one up.\n");
1232 return 0;
1233 }
1234
1235 return 1;
1236
1237}
1238
1239static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1240 STACK_OF(CONF_VALUE) *attr_sk, int attribs,
1241 unsigned long chtype)
1242{
1243 int i, spec_char, plus_char;
1244 char *p, *q;
1245 char *type;
1246 CONF_VALUE *v;
1247 X509_NAME *subj;
1248
1249 subj = X509_REQ_get_subject_name(req);
1250
1251 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1252 int mval;
1253 v = sk_CONF_VALUE_value(dn_sk, i);
1254 p = q = NULL;
1255 type = v->name;
1256 /*
1257 * Skip past any leading X. X: X, etc to allow for multiple instances
1258 */
1259 for (p = v->name; *p; p++) {
1260#ifndef CHARSET_EBCDIC
1261 spec_char = ((*p == ':') || (*p == ',') || (*p == '.'));
1262#else
1263 spec_char = ((*p == os_toascii[':']) || (*p == os_toascii[','])
1264 || (*p == os_toascii['.']));
1265#endif
1266 if (spec_char) {
1267 p++;
1268 if (*p)
1269 type = p;
1270 break;
1271 }
1272 }
1273#ifndef CHARSET_EBCDIC
1274 plus_char = (*type == '+');
1275#else
1276 plus_char = (*type == os_toascii['+']);
1277#endif
1278 if (plus_char) {
1279 type++;
1280 mval = -1;
1281 } else {
1282 mval = 0;
1283 }
1284 if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1285 (unsigned char *)v->value, -1, -1,
1286 mval))
1287 return 0;
1288
1289 }
1290
1291 if (!X509_NAME_entry_count(subj)) {
1292 BIO_printf(bio_err, "error, no objects specified in config file\n");
1293 return 0;
1294 }
1295 if (attribs) {
1296 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1297 v = sk_CONF_VALUE_value(attr_sk, i);
1298 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1299 (unsigned char *)v->value, -1))
1300 return 0;
1301 }
1302 }
1303 return 1;
1304}
1305
1306static int add_DN_object(X509_NAME *n, char *text, const char *def,
1307 char *value, int nid, int n_min, int n_max,
1308 unsigned long chtype, int mval)
1309{
1310 int ret = 0;
1311 char buf[1024];
1312
1313 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1314 "DN value", "DN default");
1315 if ((ret == 0) || (ret == 1))
1316 return ret;
1317 ret = 1;
1318
1319 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1320 (unsigned char *)buf, -1, -1, mval))
1321 ret = 0;
1322
1323 return ret;
1324}
1325
1326static int add_attribute_object(X509_REQ *req, char *text, const char *def,
1327 char *value, int nid, int n_min,
1328 int n_max, unsigned long chtype)
1329{
1330 int ret = 0;
1331 char buf[1024];
1332
1333 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1334 "Attribute value", "Attribute default");
1335 if ((ret == 0) || (ret == 1))
1336 return ret;
1337 ret = 1;
1338
1339 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1340 (unsigned char *)buf, -1)) {
1341 BIO_printf(bio_err, "Error adding attribute\n");
1342 ERR_print_errors(bio_err);
1343 ret = 0;
1344 }
1345
1346 return ret;
1347}
1348
1349
1350static int build_data(char *text, const char *def,
1351 char *value, int n_min, int n_max,
1352 char *buf, const int buf_size,
1353 const char *desc1, const char *desc2
1354 )
1355{
1356 int i;
1357 start:
1358 if (!batch)
1359 BIO_printf(bio_err, "%s [%s]:", text, def);
1360 (void)BIO_flush(bio_err);
1361 if (value != NULL) {
1362 if (!join(buf, buf_size, value, "\n", desc1))
1363 return 0;
1364 BIO_printf(bio_err, "%s\n", value);
1365 } else {
1366 buf[0] = '\0';
1367 if (!batch) {
1368 if (!fgets(buf, buf_size, stdin))
1369 return 0;
1370 } else {
1371 buf[0] = '\n';
1372 buf[1] = '\0';
1373 }
1374 }
1375
1376 if (buf[0] == '\0')
1377 return 0;
1378 if (buf[0] == '\n') {
1379 if ((def == NULL) || (def[0] == '\0'))
1380 return 1;
1381 if (!join(buf, buf_size, def, "\n", desc2))
1382 return 0;
1383 } else if ((buf[0] == '.') && (buf[1] == '\n')) {
1384 return 1;
1385 }
1386
1387 i = strlen(buf);
1388 if (buf[i - 1] != '\n') {
1389 BIO_printf(bio_err, "weird input :-(\n");
1390 return 0;
1391 }
1392 buf[--i] = '\0';
1393#ifdef CHARSET_EBCDIC
1394 ebcdic2ascii(buf, buf, i);
1395#endif
1396 if (!req_check_len(i, n_min, n_max)) {
1397 if (batch || value)
1398 return 0;
1399 goto start;
1400 }
1401 return 2;
1402}
1403
1404static int req_check_len(int len, int n_min, int n_max)
1405{
1406 if ((n_min > 0) && (len < n_min)) {
1407 BIO_printf(bio_err,
1408 "string is too short, it needs to be at least %d bytes long\n",
1409 n_min);
1410 return 0;
1411 }
1412 if ((n_max >= 0) && (len > n_max)) {
1413 BIO_printf(bio_err,
1414 "string is too long, it needs to be no more than %d bytes long\n",
1415 n_max);
1416 return 0;
1417 }
1418 return 1;
1419}
1420
1421/* Check if the end of a string matches 'end' */
1422static int check_end(const char *str, const char *end)
1423{
1424 size_t elen, slen;
1425 const char *tmp;
1426
1427 elen = strlen(end);
1428 slen = strlen(str);
1429 if (elen > slen)
1430 return 1;
1431 tmp = str + slen - elen;
1432 return strcmp(tmp, end);
1433}
1434
1435/*
1436 * Merge the two strings together into the result buffer checking for
1437 * overflow and producing an error message if there is.
1438 */
1439static int join(char buf[], size_t buf_size, const char *name,
1440 const char *tail, const char *desc)
1441{
1442 const size_t name_len = strlen(name), tail_len = strlen(tail);
1443
1444 if (name_len + tail_len + 1 > buf_size) {
1445 BIO_printf(bio_err, "%s '%s' too long\n", desc, name);
1446 return 0;
1447 }
1448 memcpy(buf, name, name_len);
1449 memcpy(buf + name_len, tail, tail_len + 1);
1450 return 1;
1451}
1452
1453static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
1454 int *pkey_type, long *pkeylen,
1455 char **palgnam, ENGINE *keygen_engine)
1456{
1457 EVP_PKEY_CTX *gctx = NULL;
1458 EVP_PKEY *param = NULL;
1459 long keylen = -1;
1460 BIO *pbio = NULL;
1461 const char *paramfile = NULL;
1462
1463 if (gstr == NULL) {
1464 *pkey_type = EVP_PKEY_RSA;
1465 keylen = *pkeylen;
1466 } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1467 *pkey_type = EVP_PKEY_RSA;
1468 keylen = atol(gstr);
1469 *pkeylen = keylen;
1470 } else if (strncmp(gstr, "param:", 6) == 0) {
1471 paramfile = gstr + 6;
1472 } else {
1473 const char *p = strchr(gstr, ':');
1474 int len;
1475 ENGINE *tmpeng;
1476 const EVP_PKEY_ASN1_METHOD *ameth;
1477
1478 if (p != NULL)
1479 len = p - gstr;
1480 else
1481 len = strlen(gstr);
1482 /*
1483 * The lookup of a the string will cover all engines so keep a note
1484 * of the implementation.
1485 */
1486
1487 ameth = EVP_PKEY_asn1_find_str(&tmpeng, gstr, len);
1488
1489 if (ameth == NULL) {
1490 BIO_printf(bio_err, "Unknown algorithm %.*s\n", len, gstr);
1491 return NULL;
1492 }
1493
1494 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL, ameth);
1495#ifndef OPENSSL_NO_ENGINE
1496 ENGINE_finish(tmpeng);
1497#endif
1498 if (*pkey_type == EVP_PKEY_RSA) {
1499 if (p != NULL) {
1500 keylen = atol(p + 1);
1501 *pkeylen = keylen;
1502 } else {
1503 keylen = *pkeylen;
1504 }
1505 } else if (p != NULL) {
1506 paramfile = p + 1;
1507 }
1508 }
1509
1510 if (paramfile != NULL) {
1511 pbio = BIO_new_file(paramfile, "r");
1512 if (pbio == NULL) {
1513 BIO_printf(bio_err, "Can't open parameter file %s\n", paramfile);
1514 return NULL;
1515 }
1516 param = PEM_read_bio_Parameters(pbio, NULL);
1517
1518 if (param == NULL) {
1519 X509 *x;
1520
1521 (void)BIO_reset(pbio);
1522 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1523 if (x != NULL) {
1524 param = X509_get_pubkey(x);
1525 X509_free(x);
1526 }
1527 }
1528
1529 BIO_free(pbio);
1530
1531 if (param == NULL) {
1532 BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile);
1533 return NULL;
1534 }
1535 if (*pkey_type == -1) {
1536 *pkey_type = EVP_PKEY_id(param);
1537 } else if (*pkey_type != EVP_PKEY_base_id(param)) {
1538 BIO_printf(bio_err, "Key Type does not match parameters\n");
1539 EVP_PKEY_free(param);
1540 return NULL;
1541 }
1542 }
1543
1544 if (palgnam != NULL) {
1545 const EVP_PKEY_ASN1_METHOD *ameth;
1546 ENGINE *tmpeng;
1547 const char *anam;
1548
1549 ameth = EVP_PKEY_asn1_find(&tmpeng, *pkey_type);
1550 if (ameth == NULL) {
1551 BIO_puts(bio_err, "Internal error: can't find key algorithm\n");
1552 return NULL;
1553 }
1554 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1555 *palgnam = OPENSSL_strdup(anam);
1556#ifndef OPENSSL_NO_ENGINE
1557 ENGINE_finish(tmpeng);
1558#endif
1559 }
1560
1561 if (param != NULL) {
1562 gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1563 *pkeylen = EVP_PKEY_bits(param);
1564 EVP_PKEY_free(param);
1565 } else {
1566 gctx = EVP_PKEY_CTX_new_id(*pkey_type, keygen_engine);
1567 }
1568
1569 if (gctx == NULL) {
1570 BIO_puts(bio_err, "Error allocating keygen context\n");
1571 ERR_print_errors(bio_err);
1572 return NULL;
1573 }
1574
1575 if (EVP_PKEY_keygen_init(gctx) <= 0) {
1576 BIO_puts(bio_err, "Error initializing keygen context\n");
1577 ERR_print_errors(bio_err);
1578 EVP_PKEY_CTX_free(gctx);
1579 return NULL;
1580 }
1581#ifndef OPENSSL_NO_RSA
1582 if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) {
1583 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) {
1584 BIO_puts(bio_err, "Error setting RSA keysize\n");
1585 ERR_print_errors(bio_err);
1586 EVP_PKEY_CTX_free(gctx);
1587 return NULL;
1588 }
1589 }
1590#endif
1591
1592 return gctx;
1593}
1594
1595static int genpkey_cb(EVP_PKEY_CTX *ctx)
1596{
1597 char c = '*';
1598 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1599 int p;
1600 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1601 if (p == 0)
1602 c = '.';
1603 if (p == 1)
1604 c = '+';
1605 if (p == 2)
1606 c = '*';
1607 if (p == 3)
1608 c = '\n';
1609 BIO_write(b, &c, 1);
1610 (void)BIO_flush(b);
1611 return 1;
1612}
1613
1614static int do_sign_init(EVP_MD_CTX *ctx, EVP_PKEY *pkey,
1615 const EVP_MD *md, STACK_OF(OPENSSL_STRING) *sigopts)
1616{
1617 EVP_PKEY_CTX *pkctx = NULL;
1618 int i, def_nid;
1619
1620 if (ctx == NULL)
1621 return 0;
1622 /*
1623 * EVP_PKEY_get_default_digest_nid() returns 2 if the digest is mandatory
1624 * for this algorithm.
1625 */
1626 if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) == 2
1627 && def_nid == NID_undef) {
1628 /* The signing algorithm requires there to be no digest */
1629 md = NULL;
1630 }
1631 if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey))
1632 return 0;
1633 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
1634 char *sigopt = sk_OPENSSL_STRING_value(sigopts, i);
1635 if (pkey_ctrl_string(pkctx, sigopt) <= 0) {
1636 BIO_printf(bio_err, "parameter error \"%s\"\n", sigopt);
1637 ERR_print_errors(bio_err);
1638 return 0;
1639 }
1640 }
1641 return 1;
1642}
1643
1644int do_X509_sign(X509 *x, EVP_PKEY *pkey, const EVP_MD *md,
1645 STACK_OF(OPENSSL_STRING) *sigopts)
1646{
1647 int rv;
1648 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1649
1650 rv = do_sign_init(mctx, pkey, md, sigopts);
1651 if (rv > 0)
1652 rv = X509_sign_ctx(x, mctx);
1653 EVP_MD_CTX_free(mctx);
1654 return rv > 0 ? 1 : 0;
1655}
1656
1657int do_X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md,
1658 STACK_OF(OPENSSL_STRING) *sigopts)
1659{
1660 int rv;
1661 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1662 rv = do_sign_init(mctx, pkey, md, sigopts);
1663 if (rv > 0)
1664 rv = X509_REQ_sign_ctx(x, mctx);
1665 EVP_MD_CTX_free(mctx);
1666 return rv > 0 ? 1 : 0;
1667}
1668
1669int do_X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const EVP_MD *md,
1670 STACK_OF(OPENSSL_STRING) *sigopts)
1671{
1672 int rv;
1673 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1674 rv = do_sign_init(mctx, pkey, md, sigopts);
1675 if (rv > 0)
1676 rv = X509_CRL_sign_ctx(x, mctx);
1677 EVP_MD_CTX_free(mctx);
1678 return rv > 0 ? 1 : 0;
1679}
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