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Add X509 related libctx changes.
[thirdparty/openssl.git] / apps / req.c
1 /*
2 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (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 /* We need to use some engine deprecated APIs */
11 #define OPENSSL_SUPPRESS_DEPRECATED
12
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <time.h>
16 #include <string.h>
17 #include <ctype.h>
18 #include "apps.h"
19 #include "progs.h"
20 #include <openssl/bio.h>
21 #include <openssl/evp.h>
22 #include <openssl/conf.h>
23 #include <openssl/err.h>
24 #include <openssl/asn1.h>
25 #include <openssl/x509.h>
26 #include <openssl/x509v3.h>
27 #include <openssl/objects.h>
28 #include <openssl/pem.h>
29 #include <openssl/bn.h>
30 #include <openssl/lhash.h>
31 #ifndef OPENSSL_NO_RSA
32 # include <openssl/rsa.h>
33 #endif
34 #ifndef OPENSSL_NO_DSA
35 # include <openssl/dsa.h>
36 #endif
37
38 DEFINE_STACK_OF(CONF_VALUE)
39 DEFINE_STACK_OF_STRING()
40
41 #define BITS "default_bits"
42 #define KEYFILE "default_keyfile"
43 #define PROMPT "prompt"
44 #define DISTINGUISHED_NAME "distinguished_name"
45 #define ATTRIBUTES "attributes"
46 #define V3_EXTENSIONS "x509_extensions"
47 #define REQ_EXTENSIONS "req_extensions"
48 #define STRING_MASK "string_mask"
49 #define UTF8_IN "utf8"
50
51 #define DEFAULT_KEY_LENGTH 2048
52 #define MIN_KEY_LENGTH 512
53
54 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *dn, int mutlirdn,
55 int attribs, unsigned long chtype);
56 static int build_subject(X509_REQ *req, const char *subj, unsigned long chtype,
57 int multirdn);
58 static int prompt_info(X509_REQ *req,
59 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
60 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
61 int attribs, unsigned long chtype);
62 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
63 STACK_OF(CONF_VALUE) *attr, int attribs,
64 unsigned long chtype);
65 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
66 char *value, int nid, int n_min, int n_max,
67 unsigned long chtype);
68 static int add_DN_object(X509_NAME *n, char *text, const char *def,
69 char *value, int nid, int n_min, int n_max,
70 unsigned long chtype, int mval);
71 static int genpkey_cb(EVP_PKEY_CTX *ctx);
72 static int build_data(char *text, const char *def,
73 char *value, int n_min, int n_max,
74 char *buf, const int buf_size,
75 const char *desc1, const char *desc2
76 );
77 static int req_check_len(int len, int n_min, int n_max);
78 static int check_end(const char *str, const char *end);
79 static int join(char buf[], size_t buf_size, const char *name,
80 const char *tail, const char *desc);
81 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
82 int *pkey_type, long *pkeylen,
83 char **palgnam, ENGINE *keygen_engine);
84
85 static const char *section = "req";
86 static CONF *req_conf = NULL;
87 static CONF *addext_conf = NULL;
88 static int batch = 0;
89
90 typedef enum OPTION_choice {
91 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
92 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_KEYGEN_ENGINE, OPT_KEY,
93 OPT_PUBKEY, OPT_NEW, OPT_CONFIG, OPT_KEYFORM, OPT_IN, OPT_OUT,
94 OPT_KEYOUT, OPT_PASSIN, OPT_PASSOUT, OPT_NEWKEY,
95 OPT_PKEYOPT, OPT_SIGOPT, OPT_VFYOPT, OPT_BATCH, OPT_NEWHDR, OPT_MODULUS,
96 OPT_VERIFY, OPT_NODES, OPT_NOOUT, OPT_VERBOSE, OPT_UTF8,
97 OPT_NAMEOPT, OPT_REQOPT, OPT_SUBJ, OPT_SUBJECT, OPT_TEXT, OPT_X509,
98 OPT_MULTIVALUE_RDN, OPT_DAYS, OPT_SET_SERIAL, OPT_ADDEXT, OPT_EXTENSIONS,
99 OPT_REQEXTS, OPT_PRECERT, OPT_MD,
100 OPT_SECTION,
101 OPT_R_ENUM, OPT_PROV_ENUM
102 } OPTION_CHOICE;
103
104 const OPTIONS req_options[] = {
105 OPT_SECTION("General"),
106 {"help", OPT_HELP, '-', "Display this summary"},
107 #ifndef OPENSSL_NO_ENGINE
108 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
109 {"keygen_engine", OPT_KEYGEN_ENGINE, 's',
110 "Specify engine to be used for key generation operations"},
111 #endif
112 {"in", OPT_IN, '<', "Input file"},
113 {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
114 {"verify", OPT_VERIFY, '-', "Verify signature on REQ"},
115
116 OPT_SECTION("Certificate"),
117 {"new", OPT_NEW, '-', "New request"},
118 {"config", OPT_CONFIG, '<', "Request template file"},
119 {"section", OPT_SECTION, 's', "Config section to use (default \"req\")"},
120 {"utf8", OPT_UTF8, '-', "Input characters are UTF8 (default ASCII)"},
121 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"},
122 {"reqopt", OPT_REQOPT, 's', "Various request text options"},
123 {"text", OPT_TEXT, '-', "Text form of request"},
124 {"x509", OPT_X509, '-',
125 "Output an x509 structure instead of a cert request"},
126 {OPT_MORE_STR, 1, 1, "(Required by some CA's)"},
127 {"subj", OPT_SUBJ, 's', "Set or modify request subject"},
128 {"subject", OPT_SUBJECT, '-', "Output the request's subject"},
129 {"multivalue-rdn", OPT_MULTIVALUE_RDN, '-',
130 "Enable support for multivalued RDNs"},
131 {"days", OPT_DAYS, 'p', "Number of days cert is valid for"},
132 {"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"},
133 {"addext", OPT_ADDEXT, 's',
134 "Additional cert extension key=value pair (may be given more than once)"},
135 {"extensions", OPT_EXTENSIONS, 's',
136 "Cert extension section (override value in config file)"},
137 {"reqexts", OPT_REQEXTS, 's',
138 "Request extension section (override value in config file)"},
139 {"precert", OPT_PRECERT, '-', "Add a poison extension (implies -new)"},
140
141 OPT_SECTION("Keys and Signing"),
142 {"key", OPT_KEY, 's', "Private key to use"},
143 {"keyform", OPT_KEYFORM, 'f', "Key file format (ENGINE, other values ignored)"},
144 {"pubkey", OPT_PUBKEY, '-', "Output public key"},
145 {"keyout", OPT_KEYOUT, '>', "File to send the key to"},
146 {"passin", OPT_PASSIN, 's', "Private key password source"},
147 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
148 {"newkey", OPT_NEWKEY, 's', "Specify as type:bits"},
149 {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
150 {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"},
151 {"vfyopt", OPT_VFYOPT, 's', "Verification parameter in n:v form"},
152 {"", OPT_MD, '-', "Any supported digest"},
153
154 OPT_SECTION("Output"),
155 {"out", OPT_OUT, '>', "Output file"},
156 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
157 {"batch", OPT_BATCH, '-',
158 "Do not ask anything during request generation"},
159 {"verbose", OPT_VERBOSE, '-', "Verbose output"},
160 {"nodes", OPT_NODES, '-', "Don't encrypt the output key"},
161 {"noout", OPT_NOOUT, '-', "Do not output REQ"},
162 {"newhdr", OPT_NEWHDR, '-', "Output \"NEW\" in the header lines"},
163 {"modulus", OPT_MODULUS, '-', "RSA modulus"},
164
165 OPT_R_OPTIONS,
166 OPT_PROV_OPTIONS,
167 {NULL}
168 };
169
170
171 /*
172 * An LHASH of strings, where each string is an extension name.
173 */
174 static unsigned long ext_name_hash(const OPENSSL_STRING *a)
175 {
176 return OPENSSL_LH_strhash((const char *)a);
177 }
178
179 static int ext_name_cmp(const OPENSSL_STRING *a, const OPENSSL_STRING *b)
180 {
181 return strcmp((const char *)a, (const char *)b);
182 }
183
184 static void exts_cleanup(OPENSSL_STRING *x)
185 {
186 OPENSSL_free((char *)x);
187 }
188
189 /*
190 * Is the |kv| key already duplicated? This is remarkably tricky to get
191 * right. Return 0 if unique, -1 on runtime error; 1 if found or a syntax
192 * error.
193 */
194 static int duplicated(LHASH_OF(OPENSSL_STRING) *addexts, char *kv)
195 {
196 char *p;
197 size_t off;
198
199 /* Check syntax. */
200 /* Skip leading whitespace, make a copy. */
201 while (*kv && isspace(*kv))
202 if (*++kv == '\0')
203 return 1;
204 if ((p = strchr(kv, '=')) == NULL)
205 return 1;
206 off = p - kv;
207 if ((kv = OPENSSL_strdup(kv)) == NULL)
208 return -1;
209
210 /* Skip trailing space before the equal sign. */
211 for (p = kv + off; p > kv; --p)
212 if (!isspace(p[-1]))
213 break;
214 if (p == kv) {
215 OPENSSL_free(kv);
216 return 1;
217 }
218 *p = '\0';
219
220 /* Finally have a clean "key"; see if it's there [by attempt to add it]. */
221 p = (char *)lh_OPENSSL_STRING_insert(addexts, (OPENSSL_STRING*)kv);
222 if (p != NULL) {
223 OPENSSL_free(p);
224 return 1;
225 } else if (lh_OPENSSL_STRING_error(addexts)) {
226 OPENSSL_free(kv);
227 return -1;
228 }
229
230 return 0;
231 }
232
233 int req_main(int argc, char **argv)
234 {
235 ASN1_INTEGER *serial = NULL;
236 BIO *out = NULL;
237 ENGINE *e = NULL, *gen_eng = NULL;
238 EVP_PKEY *pkey = NULL;
239 EVP_PKEY_CTX *genctx = NULL;
240 STACK_OF(OPENSSL_STRING) *pkeyopts = NULL, *sigopts = NULL, *vfyopts = NULL;
241 LHASH_OF(OPENSSL_STRING) *addexts = NULL;
242 X509 *x509ss = NULL;
243 X509_REQ *req = NULL;
244 const EVP_CIPHER *cipher = NULL;
245 const EVP_MD *md_alg = NULL, *digest = NULL;
246 BIO *addext_bio = NULL;
247 char *extensions = NULL, *infile = NULL;
248 char *outfile = NULL, *keyfile = NULL;
249 char *keyalgstr = NULL, *p, *prog, *passargin = NULL, *passargout = NULL;
250 char *passin = NULL, *passout = NULL;
251 char *nofree_passin = NULL, *nofree_passout = NULL;
252 char *req_exts = NULL, *subj = NULL;
253 char *template = default_config_file, *keyout = NULL;
254 const char *keyalg = NULL;
255 OPTION_CHOICE o;
256 int ret = 1, x509 = 0, days = 0, i = 0, newreq = 0, verbose = 0;
257 int pkey_type = -1, private = 0;
258 int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyform = FORMAT_PEM;
259 int modulus = 0, multirdn = 0, verify = 0, noout = 0, text = 0;
260 int nodes = 0, newhdr = 0, subject = 0, pubkey = 0, precert = 0;
261 long newkey = -1;
262 unsigned long chtype = MBSTRING_ASC, reqflag = 0;
263
264 #ifndef OPENSSL_NO_DES
265 cipher = EVP_des_ede3_cbc();
266 #endif
267
268 prog = opt_init(argc, argv, req_options);
269 while ((o = opt_next()) != OPT_EOF) {
270 switch (o) {
271 case OPT_EOF:
272 case OPT_ERR:
273 opthelp:
274 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
275 goto end;
276 case OPT_HELP:
277 opt_help(req_options);
278 ret = 0;
279 goto end;
280 case OPT_INFORM:
281 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
282 goto opthelp;
283 break;
284 case OPT_OUTFORM:
285 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
286 goto opthelp;
287 break;
288 case OPT_ENGINE:
289 e = setup_engine(opt_arg(), 0);
290 break;
291 case OPT_KEYGEN_ENGINE:
292 #ifndef OPENSSL_NO_ENGINE
293 gen_eng = ENGINE_by_id(opt_arg());
294 if (gen_eng == NULL) {
295 BIO_printf(bio_err, "Can't find keygen engine %s\n", *argv);
296 goto opthelp;
297 }
298 #endif
299 break;
300 case OPT_KEY:
301 keyfile = opt_arg();
302 break;
303 case OPT_PUBKEY:
304 pubkey = 1;
305 break;
306 case OPT_NEW:
307 newreq = 1;
308 break;
309 case OPT_CONFIG:
310 template = opt_arg();
311 break;
312 case OPT_SECTION:
313 section = opt_arg();
314 break;
315 case OPT_KEYFORM:
316 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
317 goto opthelp;
318 break;
319 case OPT_IN:
320 infile = opt_arg();
321 break;
322 case OPT_OUT:
323 outfile = opt_arg();
324 break;
325 case OPT_KEYOUT:
326 keyout = opt_arg();
327 break;
328 case OPT_PASSIN:
329 passargin = opt_arg();
330 break;
331 case OPT_PASSOUT:
332 passargout = opt_arg();
333 break;
334 case OPT_R_CASES:
335 if (!opt_rand(o))
336 goto end;
337 break;
338 case OPT_PROV_CASES:
339 if (!opt_provider(o))
340 goto end;
341 break;
342 case OPT_NEWKEY:
343 keyalg = opt_arg();
344 newreq = 1;
345 break;
346 case OPT_PKEYOPT:
347 if (pkeyopts == NULL)
348 pkeyopts = sk_OPENSSL_STRING_new_null();
349 if (pkeyopts == NULL
350 || !sk_OPENSSL_STRING_push(pkeyopts, opt_arg()))
351 goto opthelp;
352 break;
353 case OPT_SIGOPT:
354 if (!sigopts)
355 sigopts = sk_OPENSSL_STRING_new_null();
356 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
357 goto opthelp;
358 break;
359 case OPT_VFYOPT:
360 if (!vfyopts)
361 vfyopts = sk_OPENSSL_STRING_new_null();
362 if (!vfyopts || !sk_OPENSSL_STRING_push(vfyopts, opt_arg()))
363 goto opthelp;
364 break;
365 case OPT_BATCH:
366 batch = 1;
367 break;
368 case OPT_NEWHDR:
369 newhdr = 1;
370 break;
371 case OPT_MODULUS:
372 modulus = 1;
373 break;
374 case OPT_VERIFY:
375 verify = 1;
376 break;
377 case OPT_NODES:
378 nodes = 1;
379 break;
380 case OPT_NOOUT:
381 noout = 1;
382 break;
383 case OPT_VERBOSE:
384 verbose = 1;
385 break;
386 case OPT_UTF8:
387 chtype = MBSTRING_UTF8;
388 break;
389 case OPT_NAMEOPT:
390 if (!set_nameopt(opt_arg()))
391 goto opthelp;
392 break;
393 case OPT_REQOPT:
394 if (!set_cert_ex(&reqflag, opt_arg()))
395 goto opthelp;
396 break;
397 case OPT_TEXT:
398 text = 1;
399 break;
400 case OPT_X509:
401 x509 = 1;
402 break;
403 case OPT_DAYS:
404 days = atoi(opt_arg());
405 break;
406 case OPT_SET_SERIAL:
407 if (serial != NULL) {
408 BIO_printf(bio_err, "Serial number supplied twice\n");
409 goto opthelp;
410 }
411 serial = s2i_ASN1_INTEGER(NULL, opt_arg());
412 if (serial == NULL)
413 goto opthelp;
414 break;
415 case OPT_SUBJECT:
416 subject = 1;
417 break;
418 case OPT_SUBJ:
419 subj = opt_arg();
420 break;
421 case OPT_MULTIVALUE_RDN:
422 multirdn = 1;
423 break;
424 case OPT_ADDEXT:
425 p = opt_arg();
426 if (addexts == NULL) {
427 addexts = lh_OPENSSL_STRING_new(ext_name_hash, ext_name_cmp);
428 addext_bio = BIO_new(BIO_s_mem());
429 if (addexts == NULL || addext_bio == NULL)
430 goto end;
431 }
432 i = duplicated(addexts, p);
433 if (i == 1)
434 goto opthelp;
435 if (i < 0 || BIO_printf(addext_bio, "%s\n", opt_arg()) < 0)
436 goto end;
437 break;
438 case OPT_EXTENSIONS:
439 extensions = opt_arg();
440 break;
441 case OPT_REQEXTS:
442 req_exts = opt_arg();
443 break;
444 case OPT_PRECERT:
445 newreq = precert = 1;
446 break;
447 case OPT_MD:
448 if (!opt_md(opt_unknown(), &md_alg))
449 goto opthelp;
450 digest = md_alg;
451 break;
452 }
453 }
454 argc = opt_num_rest();
455 if (argc != 0)
456 goto opthelp;
457
458 if (days && !x509)
459 BIO_printf(bio_err, "Ignoring -days; not generating a certificate\n");
460 if (x509 && infile == NULL)
461 newreq = 1;
462
463 /* TODO: simplify this as pkey is still always NULL here */
464 private = newreq && (pkey == NULL) ? 1 : 0;
465
466 if (!app_passwd(passargin, passargout, &passin, &passout)) {
467 BIO_printf(bio_err, "Error getting passwords\n");
468 goto end;
469 }
470
471 if (verbose)
472 BIO_printf(bio_err, "Using configuration from %s\n", template);
473 if ((req_conf = app_load_config(template)) == NULL)
474 goto end;
475 if (addext_bio != NULL) {
476 if (verbose)
477 BIO_printf(bio_err,
478 "Using additional configuration from command line\n");
479 if ((addext_conf = app_load_config_bio(addext_bio, NULL)) == NULL)
480 goto end;
481 }
482 if (template != default_config_file && !app_load_modules(req_conf))
483 goto end;
484
485 if (req_conf != NULL) {
486 p = NCONF_get_string(req_conf, NULL, "oid_file");
487 if (p == NULL)
488 ERR_clear_error();
489 if (p != NULL) {
490 BIO *oid_bio;
491
492 oid_bio = BIO_new_file(p, "r");
493 if (oid_bio == NULL) {
494 /*-
495 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
496 ERR_print_errors(bio_err);
497 */
498 } else {
499 OBJ_create_objects(oid_bio);
500 BIO_free(oid_bio);
501 }
502 }
503 }
504 if (!add_oid_section(req_conf))
505 goto end;
506
507 if (md_alg == NULL) {
508 p = NCONF_get_string(req_conf, section, "default_md");
509 if (p == NULL) {
510 ERR_clear_error();
511 } else {
512 if (!opt_md(p, &md_alg))
513 goto opthelp;
514 digest = md_alg;
515 }
516 }
517
518 if (extensions == NULL) {
519 extensions = NCONF_get_string(req_conf, section, V3_EXTENSIONS);
520 if (extensions == NULL)
521 ERR_clear_error();
522 }
523 if (extensions != NULL) {
524 /* Check syntax of file */
525 X509V3_CTX ctx;
526 X509V3_set_ctx_test(&ctx);
527 X509V3_set_nconf(&ctx, req_conf);
528 if (!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) {
529 BIO_printf(bio_err,
530 "Error Loading extension section %s\n", extensions);
531 goto end;
532 }
533 }
534 if (addext_conf != NULL) {
535 /* Check syntax of command line extensions */
536 X509V3_CTX ctx;
537 X509V3_set_ctx_test(&ctx);
538 X509V3_set_nconf(&ctx, addext_conf);
539 if (!X509V3_EXT_add_nconf(addext_conf, &ctx, "default", NULL)) {
540 BIO_printf(bio_err, "Error Loading command line extensions\n");
541 goto end;
542 }
543 }
544
545 if (passin == NULL) {
546 passin = nofree_passin =
547 NCONF_get_string(req_conf, section, "input_password");
548 if (passin == NULL)
549 ERR_clear_error();
550 }
551
552 if (passout == NULL) {
553 passout = nofree_passout =
554 NCONF_get_string(req_conf, section, "output_password");
555 if (passout == NULL)
556 ERR_clear_error();
557 }
558
559 p = NCONF_get_string(req_conf, section, STRING_MASK);
560 if (p == NULL)
561 ERR_clear_error();
562
563 if (p != NULL && !ASN1_STRING_set_default_mask_asc(p)) {
564 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
565 goto end;
566 }
567
568 if (chtype != MBSTRING_UTF8) {
569 p = NCONF_get_string(req_conf, section, UTF8_IN);
570 if (p == NULL)
571 ERR_clear_error();
572 else if (strcmp(p, "yes") == 0)
573 chtype = MBSTRING_UTF8;
574 }
575
576 if (req_exts == NULL) {
577 req_exts = NCONF_get_string(req_conf, section, REQ_EXTENSIONS);
578 if (req_exts == NULL)
579 ERR_clear_error();
580 }
581 if (req_exts != NULL) {
582 /* Check syntax of file */
583 X509V3_CTX ctx;
584 X509V3_set_ctx_test(&ctx);
585 X509V3_set_nconf(&ctx, req_conf);
586 if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) {
587 BIO_printf(bio_err,
588 "Error Loading request extension section %s\n",
589 req_exts);
590 goto end;
591 }
592 }
593
594 if (keyfile != NULL) {
595 pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key");
596 if (pkey == NULL)
597 goto end;
598 app_RAND_load_conf(req_conf, section);
599 }
600
601 if (newreq && (pkey == NULL)) {
602 app_RAND_load_conf(req_conf, section);
603
604 if (!NCONF_get_number(req_conf, section, BITS, &newkey)) {
605 newkey = DEFAULT_KEY_LENGTH;
606 }
607
608 if (keyalg != NULL) {
609 genctx = set_keygen_ctx(keyalg, &pkey_type, &newkey,
610 &keyalgstr, gen_eng);
611 if (genctx == NULL)
612 goto end;
613 }
614
615 if (newkey < MIN_KEY_LENGTH
616 && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) {
617 BIO_printf(bio_err, "private key length is too short,\n");
618 BIO_printf(bio_err, "it needs to be at least %d bits, not %ld\n",
619 MIN_KEY_LENGTH, newkey);
620 goto end;
621 }
622
623 if (pkey_type == EVP_PKEY_RSA && newkey > OPENSSL_RSA_MAX_MODULUS_BITS)
624 BIO_printf(bio_err,
625 "Warning: It is not recommended to use more than %d bit for RSA keys.\n"
626 " Your key size is %ld! Larger key size may behave not as expected.\n",
627 OPENSSL_RSA_MAX_MODULUS_BITS, newkey);
628
629 #ifndef OPENSSL_NO_DSA
630 if (pkey_type == EVP_PKEY_DSA && newkey > OPENSSL_DSA_MAX_MODULUS_BITS)
631 BIO_printf(bio_err,
632 "Warning: It is not recommended to use more than %d bit for DSA keys.\n"
633 " Your key size is %ld! Larger key size may behave not as expected.\n",
634 OPENSSL_DSA_MAX_MODULUS_BITS, newkey);
635 #endif
636
637 if (genctx == NULL) {
638 genctx = set_keygen_ctx(NULL, &pkey_type, &newkey,
639 &keyalgstr, gen_eng);
640 if (!genctx)
641 goto end;
642 }
643
644 if (pkeyopts != NULL) {
645 char *genopt;
646 for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) {
647 genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
648 if (pkey_ctrl_string(genctx, genopt) <= 0) {
649 BIO_printf(bio_err, "parameter error \"%s\"\n", genopt);
650 ERR_print_errors(bio_err);
651 goto end;
652 }
653 }
654 }
655
656 if (pkey_type == EVP_PKEY_EC) {
657 BIO_printf(bio_err, "Generating an EC private key\n");
658 } else {
659 BIO_printf(bio_err, "Generating a %s private key\n", keyalgstr);
660 }
661
662 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
663 EVP_PKEY_CTX_set_app_data(genctx, bio_err);
664
665 if (EVP_PKEY_keygen(genctx, &pkey) <= 0) {
666 BIO_puts(bio_err, "Error Generating Key\n");
667 goto end;
668 }
669
670 EVP_PKEY_CTX_free(genctx);
671 genctx = NULL;
672
673 if (keyout == NULL) {
674 keyout = NCONF_get_string(req_conf, section, KEYFILE);
675 if (keyout == NULL)
676 ERR_clear_error();
677 }
678
679 if (keyout == NULL)
680 BIO_printf(bio_err, "writing new private key to stdout\n");
681 else
682 BIO_printf(bio_err, "writing new private key to '%s'\n", keyout);
683 out = bio_open_owner(keyout, outformat, private);
684 if (out == NULL)
685 goto end;
686
687 p = NCONF_get_string(req_conf, section, "encrypt_rsa_key");
688 if (p == NULL) {
689 ERR_clear_error();
690 p = NCONF_get_string(req_conf, section, "encrypt_key");
691 if (p == NULL)
692 ERR_clear_error();
693 }
694 if ((p != NULL) && (strcmp(p, "no") == 0))
695 cipher = NULL;
696 if (nodes)
697 cipher = NULL;
698
699 i = 0;
700 loop:
701 assert(private);
702 if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
703 NULL, 0, NULL, passout)) {
704 if ((ERR_GET_REASON(ERR_peek_error()) ==
705 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
706 ERR_clear_error();
707 i++;
708 goto loop;
709 }
710 goto end;
711 }
712 BIO_free(out);
713 out = NULL;
714 BIO_printf(bio_err, "-----\n");
715 }
716
717 if (!newreq) {
718 req = load_csr(infile, informat, "X509 request");
719 if (req == NULL)
720 goto end;
721 }
722
723 if (newreq || x509) {
724 if (pkey == NULL) {
725 BIO_printf(bio_err, "you need to specify a private key\n");
726 goto end;
727 }
728
729 if (req == NULL) {
730 req = X509_REQ_new();
731 if (req == NULL) {
732 goto end;
733 }
734
735 i = make_REQ(req, pkey, subj, multirdn, !x509, chtype);
736 subj = NULL; /* done processing '-subj' option */
737 if (!i) {
738 BIO_printf(bio_err, "problems making Certificate Request\n");
739 goto end;
740 }
741 }
742 if (x509) {
743 EVP_PKEY *tmppkey;
744 X509V3_CTX ext_ctx;
745 if ((x509ss = X509_new_with_libctx(app_get0_libctx(),
746 app_get0_propq())) == NULL)
747 goto end;
748
749 /* Set version to V3 */
750 if ((extensions != NULL || addext_conf != NULL)
751 && !X509_set_version(x509ss, 2))
752 goto end;
753 if (serial != NULL) {
754 if (!X509_set_serialNumber(x509ss, serial))
755 goto end;
756 } else {
757 if (!rand_serial(NULL, X509_get_serialNumber(x509ss)))
758 goto end;
759 }
760
761 if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req)))
762 goto end;
763 if (days == 0) {
764 /* set default days if it's not specified */
765 days = 30;
766 }
767 if (!set_cert_times(x509ss, NULL, NULL, days))
768 goto end;
769 if (!X509_set_subject_name
770 (x509ss, X509_REQ_get_subject_name(req)))
771 goto end;
772 tmppkey = X509_REQ_get0_pubkey(req);
773 if (!tmppkey || !X509_set_pubkey(x509ss, tmppkey))
774 goto end;
775
776 /* Set up V3 context struct */
777
778 X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
779 X509V3_set_nconf(&ext_ctx, req_conf);
780
781 /* Add extensions */
782 if (extensions != NULL && !X509V3_EXT_add_nconf(req_conf,
783 &ext_ctx, extensions,
784 x509ss)) {
785 BIO_printf(bio_err, "Error Loading extension section %s\n",
786 extensions);
787 goto end;
788 }
789 if (addext_conf != NULL
790 && !X509V3_EXT_add_nconf(addext_conf, &ext_ctx, "default",
791 x509ss)) {
792 BIO_printf(bio_err, "Error Loading command line extensions\n");
793 goto end;
794 }
795
796 /* If a pre-cert was requested, we need to add a poison extension */
797 if (precert) {
798 if (X509_add1_ext_i2d(x509ss, NID_ct_precert_poison, NULL, 1, 0)
799 != 1) {
800 BIO_printf(bio_err, "Error adding poison extension\n");
801 goto end;
802 }
803 }
804
805 i = do_X509_sign(x509ss, pkey, digest, sigopts);
806 if (!i) {
807 ERR_print_errors(bio_err);
808 goto end;
809 }
810 } else {
811 X509V3_CTX ext_ctx;
812
813 /* Set up V3 context struct */
814
815 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
816 X509V3_set_nconf(&ext_ctx, req_conf);
817
818 /* Add extensions */
819 if (req_exts != NULL
820 && !X509V3_EXT_REQ_add_nconf(req_conf, &ext_ctx,
821 req_exts, req)) {
822 BIO_printf(bio_err, "Error Loading extension section %s\n",
823 req_exts);
824 goto end;
825 }
826 if (addext_conf != NULL
827 && !X509V3_EXT_REQ_add_nconf(addext_conf, &ext_ctx, "default",
828 req)) {
829 BIO_printf(bio_err, "Error Loading command line extensions\n");
830 goto end;
831 }
832 i = do_X509_REQ_sign(req, pkey, digest, sigopts);
833 if (!i) {
834 ERR_print_errors(bio_err);
835 goto end;
836 }
837 }
838 }
839
840 if (subj && x509) {
841 BIO_printf(bio_err, "Cannot modify certificate subject\n");
842 goto end;
843 }
844
845 if (subj && !x509) {
846 if (verbose) {
847 BIO_printf(bio_err, "Modifying Request's Subject\n");
848 print_name(bio_err, "old subject=",
849 X509_REQ_get_subject_name(req), get_nameopt());
850 }
851
852 if (build_subject(req, subj, chtype, multirdn) == 0) {
853 BIO_printf(bio_err, "ERROR: cannot modify subject\n");
854 ret = 1;
855 goto end;
856 }
857
858 if (verbose) {
859 print_name(bio_err, "new subject=",
860 X509_REQ_get_subject_name(req), get_nameopt());
861 }
862 }
863
864 if (verify && !x509) {
865 EVP_PKEY *tpubkey = pkey;
866
867 if (tpubkey == NULL) {
868 tpubkey = X509_REQ_get0_pubkey(req);
869 if (tpubkey == NULL)
870 goto end;
871 }
872
873 i = do_X509_REQ_verify(req, tpubkey, vfyopts);
874
875 if (i < 0) {
876 goto end;
877 } else if (i == 0) {
878 BIO_printf(bio_err, "verify failure\n");
879 ERR_print_errors(bio_err);
880 } else { /* if (i > 0) */
881 BIO_printf(bio_err, "verify OK\n");
882 }
883 }
884
885 if (noout && !text && !modulus && !subject && !pubkey) {
886 ret = 0;
887 goto end;
888 }
889
890 out = bio_open_default(outfile,
891 keyout != NULL && outfile != NULL &&
892 strcmp(keyout, outfile) == 0 ? 'a' : 'w',
893 outformat);
894 if (out == NULL)
895 goto end;
896
897 if (pubkey) {
898 EVP_PKEY *tpubkey = X509_REQ_get0_pubkey(req);
899
900 if (tpubkey == NULL) {
901 BIO_printf(bio_err, "Error getting public key\n");
902 ERR_print_errors(bio_err);
903 goto end;
904 }
905 PEM_write_bio_PUBKEY(out, tpubkey);
906 }
907
908 if (text) {
909 if (x509)
910 ret = X509_print_ex(out, x509ss, get_nameopt(), reqflag);
911 else
912 ret = X509_REQ_print_ex(out, req, get_nameopt(), reqflag);
913
914 if (ret == 0) {
915 if (x509)
916 BIO_printf(bio_err, "Error printing certificate\n");
917 else
918 BIO_printf(bio_err, "Error printing certificate request\n");
919
920 ERR_print_errors(bio_err);
921 goto end;
922 }
923 }
924
925 if (subject) {
926 if (x509)
927 print_name(out, "subject=", X509_get_subject_name(x509ss),
928 get_nameopt());
929 else
930 print_name(out, "subject=", X509_REQ_get_subject_name(req),
931 get_nameopt());
932 }
933
934 if (modulus) {
935 EVP_PKEY *tpubkey;
936
937 if (x509)
938 tpubkey = X509_get0_pubkey(x509ss);
939 else
940 tpubkey = X509_REQ_get0_pubkey(req);
941 if (tpubkey == NULL) {
942 fprintf(stdout, "Modulus=unavailable\n");
943 goto end;
944 }
945 fprintf(stdout, "Modulus=");
946 #ifndef OPENSSL_NO_RSA
947 if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA) {
948 const BIGNUM *n;
949 RSA_get0_key(EVP_PKEY_get0_RSA(tpubkey), &n, NULL, NULL);
950 BN_print(out, n);
951 } else
952 #endif
953 fprintf(stdout, "Wrong Algorithm type");
954 fprintf(stdout, "\n");
955 }
956
957 if (!noout && !x509) {
958 if (outformat == FORMAT_ASN1)
959 i = i2d_X509_REQ_bio(out, req);
960 else if (newhdr)
961 i = PEM_write_bio_X509_REQ_NEW(out, req);
962 else
963 i = PEM_write_bio_X509_REQ(out, req);
964 if (!i) {
965 BIO_printf(bio_err, "unable to write X509 request\n");
966 goto end;
967 }
968 }
969 if (!noout && x509 && (x509ss != NULL)) {
970 if (outformat == FORMAT_ASN1)
971 i = i2d_X509_bio(out, x509ss);
972 else
973 i = PEM_write_bio_X509(out, x509ss);
974 if (!i) {
975 BIO_printf(bio_err, "unable to write X509 certificate\n");
976 goto end;
977 }
978 }
979 ret = 0;
980 end:
981 if (ret) {
982 ERR_print_errors(bio_err);
983 }
984 NCONF_free(req_conf);
985 NCONF_free(addext_conf);
986 BIO_free(addext_bio);
987 BIO_free_all(out);
988 EVP_PKEY_free(pkey);
989 EVP_PKEY_CTX_free(genctx);
990 sk_OPENSSL_STRING_free(pkeyopts);
991 sk_OPENSSL_STRING_free(sigopts);
992 sk_OPENSSL_STRING_free(vfyopts);
993 lh_OPENSSL_STRING_doall(addexts, exts_cleanup);
994 lh_OPENSSL_STRING_free(addexts);
995 #ifndef OPENSSL_NO_ENGINE
996 ENGINE_free(gen_eng);
997 #endif
998 OPENSSL_free(keyalgstr);
999 X509_REQ_free(req);
1000 X509_free(x509ss);
1001 ASN1_INTEGER_free(serial);
1002 release_engine(e);
1003 if (passin != nofree_passin)
1004 OPENSSL_free(passin);
1005 if (passout != nofree_passout)
1006 OPENSSL_free(passout);
1007 return ret;
1008 }
1009
1010 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *subj, int multirdn,
1011 int attribs, unsigned long chtype)
1012 {
1013 int ret = 0, i;
1014 char no_prompt = 0;
1015 STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
1016 char *tmp, *dn_sect, *attr_sect;
1017
1018 tmp = NCONF_get_string(req_conf, section, PROMPT);
1019 if (tmp == NULL)
1020 ERR_clear_error();
1021 if ((tmp != NULL) && strcmp(tmp, "no") == 0)
1022 no_prompt = 1;
1023
1024 dn_sect = NCONF_get_string(req_conf, section, DISTINGUISHED_NAME);
1025 if (dn_sect == NULL) {
1026 BIO_printf(bio_err, "unable to find '%s' in config\n",
1027 DISTINGUISHED_NAME);
1028 goto err;
1029 }
1030 dn_sk = NCONF_get_section(req_conf, dn_sect);
1031 if (dn_sk == NULL) {
1032 BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect);
1033 goto err;
1034 }
1035
1036 attr_sect = NCONF_get_string(req_conf, section, ATTRIBUTES);
1037 if (attr_sect == NULL) {
1038 ERR_clear_error();
1039 attr_sk = NULL;
1040 } else {
1041 attr_sk = NCONF_get_section(req_conf, attr_sect);
1042 if (attr_sk == NULL) {
1043 BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect);
1044 goto err;
1045 }
1046 }
1047
1048 /* setup version number */
1049 if (!X509_REQ_set_version(req, 0L))
1050 goto err; /* version 1 */
1051
1052 if (subj)
1053 i = build_subject(req, subj, chtype, multirdn);
1054 else if (no_prompt)
1055 i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
1056 else
1057 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs,
1058 chtype);
1059 if (!i)
1060 goto err;
1061
1062 if (!X509_REQ_set_pubkey(req, pkey))
1063 goto err;
1064
1065 ret = 1;
1066 err:
1067 return ret;
1068 }
1069
1070 /*
1071 * subject is expected to be in the format /type0=value0/type1=value1/type2=...
1072 * where characters may be escaped by \
1073 */
1074 static int build_subject(X509_REQ *req, const char *subject, unsigned long chtype,
1075 int multirdn)
1076 {
1077 X509_NAME *n;
1078
1079 if ((n = parse_name(subject, chtype, multirdn)) == NULL)
1080 return 0;
1081
1082 if (!X509_REQ_set_subject_name(req, n)) {
1083 X509_NAME_free(n);
1084 return 0;
1085 }
1086 X509_NAME_free(n);
1087 return 1;
1088 }
1089
1090 static int prompt_info(X509_REQ *req,
1091 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
1092 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
1093 int attribs, unsigned long chtype)
1094 {
1095 int i;
1096 char *p, *q;
1097 char buf[100];
1098 int nid, mval;
1099 long n_min, n_max;
1100 char *type, *value;
1101 const char *def;
1102 CONF_VALUE *v;
1103 X509_NAME *subj = X509_REQ_get_subject_name(req);
1104
1105 if (!batch) {
1106 BIO_printf(bio_err,
1107 "You are about to be asked to enter information that will be incorporated\n");
1108 BIO_printf(bio_err, "into your certificate request.\n");
1109 BIO_printf(bio_err,
1110 "What you are about to enter is what is called a Distinguished Name or a DN.\n");
1111 BIO_printf(bio_err,
1112 "There are quite a few fields but you can leave some blank\n");
1113 BIO_printf(bio_err,
1114 "For some fields there will be a default value,\n");
1115 BIO_printf(bio_err,
1116 "If you enter '.', the field will be left blank.\n");
1117 BIO_printf(bio_err, "-----\n");
1118 }
1119
1120 if (sk_CONF_VALUE_num(dn_sk)) {
1121 i = -1;
1122 start:
1123 for ( ; ; ) {
1124 i++;
1125 if (sk_CONF_VALUE_num(dn_sk) <= i)
1126 break;
1127
1128 v = sk_CONF_VALUE_value(dn_sk, i);
1129 p = q = NULL;
1130 type = v->name;
1131 if (!check_end(type, "_min") || !check_end(type, "_max") ||
1132 !check_end(type, "_default") || !check_end(type, "_value"))
1133 continue;
1134 /*
1135 * Skip past any leading X. X: X, etc to allow for multiple
1136 * instances
1137 */
1138 for (p = v->name; *p; p++)
1139 if ((*p == ':') || (*p == ',') || (*p == '.')) {
1140 p++;
1141 if (*p)
1142 type = p;
1143 break;
1144 }
1145 if (*type == '+') {
1146 mval = -1;
1147 type++;
1148 } else {
1149 mval = 0;
1150 }
1151 /* If OBJ not recognised ignore it */
1152 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1153 goto start;
1154 if (!join(buf, sizeof(buf), v->name, "_default", "Name"))
1155 return 0;
1156 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1157 ERR_clear_error();
1158 def = "";
1159 }
1160
1161 if (!join(buf, sizeof(buf), v->name, "_value", "Name"))
1162 return 0;
1163 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1164 ERR_clear_error();
1165 value = NULL;
1166 }
1167
1168 if (!join(buf, sizeof(buf), v->name, "_min", "Name"))
1169 return 0;
1170 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1171 ERR_clear_error();
1172 n_min = -1;
1173 }
1174
1175
1176 if (!join(buf, sizeof(buf), v->name, "_max", "Name"))
1177 return 0;
1178 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1179 ERR_clear_error();
1180 n_max = -1;
1181 }
1182
1183 if (!add_DN_object(subj, v->value, def, value, nid,
1184 n_min, n_max, chtype, mval))
1185 return 0;
1186 }
1187 if (X509_NAME_entry_count(subj) == 0) {
1188 BIO_printf(bio_err, "error, no objects specified in config file\n");
1189 return 0;
1190 }
1191
1192 if (attribs) {
1193 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0)
1194 && (!batch)) {
1195 BIO_printf(bio_err,
1196 "\nPlease enter the following 'extra' attributes\n");
1197 BIO_printf(bio_err,
1198 "to be sent with your certificate request\n");
1199 }
1200
1201 i = -1;
1202 start2:
1203 for ( ; ; ) {
1204 i++;
1205 if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i))
1206 break;
1207
1208 v = sk_CONF_VALUE_value(attr_sk, i);
1209 type = v->name;
1210 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1211 goto start2;
1212
1213 if (!join(buf, sizeof(buf), type, "_default", "Name"))
1214 return 0;
1215 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1216 == NULL) {
1217 ERR_clear_error();
1218 def = "";
1219 }
1220
1221 if (!join(buf, sizeof(buf), type, "_value", "Name"))
1222 return 0;
1223 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1224 == NULL) {
1225 ERR_clear_error();
1226 value = NULL;
1227 }
1228
1229 if (!join(buf, sizeof(buf), type,"_min", "Name"))
1230 return 0;
1231 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1232 ERR_clear_error();
1233 n_min = -1;
1234 }
1235
1236 if (!join(buf, sizeof(buf), type, "_max", "Name"))
1237 return 0;
1238 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1239 ERR_clear_error();
1240 n_max = -1;
1241 }
1242
1243 if (!add_attribute_object(req,
1244 v->value, def, value, nid, n_min,
1245 n_max, chtype))
1246 return 0;
1247 }
1248 }
1249 } else {
1250 BIO_printf(bio_err, "No template, please set one up.\n");
1251 return 0;
1252 }
1253
1254 return 1;
1255
1256 }
1257
1258 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1259 STACK_OF(CONF_VALUE) *attr_sk, int attribs,
1260 unsigned long chtype)
1261 {
1262 int i, spec_char, plus_char;
1263 char *p, *q;
1264 char *type;
1265 CONF_VALUE *v;
1266 X509_NAME *subj;
1267
1268 subj = X509_REQ_get_subject_name(req);
1269
1270 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1271 int mval;
1272 v = sk_CONF_VALUE_value(dn_sk, i);
1273 p = q = NULL;
1274 type = v->name;
1275 /*
1276 * Skip past any leading X. X: X, etc to allow for multiple instances
1277 */
1278 for (p = v->name; *p; p++) {
1279 #ifndef CHARSET_EBCDIC
1280 spec_char = ((*p == ':') || (*p == ',') || (*p == '.'));
1281 #else
1282 spec_char = ((*p == os_toascii[':']) || (*p == os_toascii[','])
1283 || (*p == os_toascii['.']));
1284 #endif
1285 if (spec_char) {
1286 p++;
1287 if (*p)
1288 type = p;
1289 break;
1290 }
1291 }
1292 #ifndef CHARSET_EBCDIC
1293 plus_char = (*type == '+');
1294 #else
1295 plus_char = (*type == os_toascii['+']);
1296 #endif
1297 if (plus_char) {
1298 type++;
1299 mval = -1;
1300 } else {
1301 mval = 0;
1302 }
1303 if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1304 (unsigned char *)v->value, -1, -1,
1305 mval))
1306 return 0;
1307
1308 }
1309
1310 if (!X509_NAME_entry_count(subj)) {
1311 BIO_printf(bio_err, "error, no objects specified in config file\n");
1312 return 0;
1313 }
1314 if (attribs) {
1315 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1316 v = sk_CONF_VALUE_value(attr_sk, i);
1317 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1318 (unsigned char *)v->value, -1))
1319 return 0;
1320 }
1321 }
1322 return 1;
1323 }
1324
1325 static int add_DN_object(X509_NAME *n, char *text, const char *def,
1326 char *value, int nid, int n_min, int n_max,
1327 unsigned long chtype, int mval)
1328 {
1329 int ret = 0;
1330 char buf[1024];
1331
1332 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1333 "DN value", "DN default");
1334 if ((ret == 0) || (ret == 1))
1335 return ret;
1336 ret = 1;
1337
1338 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1339 (unsigned char *)buf, -1, -1, mval))
1340 ret = 0;
1341
1342 return ret;
1343 }
1344
1345 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
1346 char *value, int nid, int n_min,
1347 int n_max, unsigned long chtype)
1348 {
1349 int ret = 0;
1350 char buf[1024];
1351
1352 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1353 "Attribute value", "Attribute default");
1354 if ((ret == 0) || (ret == 1))
1355 return ret;
1356 ret = 1;
1357
1358 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1359 (unsigned char *)buf, -1)) {
1360 BIO_printf(bio_err, "Error adding attribute\n");
1361 ERR_print_errors(bio_err);
1362 ret = 0;
1363 }
1364
1365 return ret;
1366 }
1367
1368
1369 static int build_data(char *text, const char *def,
1370 char *value, int n_min, int n_max,
1371 char *buf, const int buf_size,
1372 const char *desc1, const char *desc2
1373 )
1374 {
1375 int i;
1376 start:
1377 if (!batch)
1378 BIO_printf(bio_err, "%s [%s]:", text, def);
1379 (void)BIO_flush(bio_err);
1380 if (value != NULL) {
1381 if (!join(buf, buf_size, value, "\n", desc1))
1382 return 0;
1383 BIO_printf(bio_err, "%s\n", value);
1384 } else {
1385 buf[0] = '\0';
1386 if (!batch) {
1387 if (!fgets(buf, buf_size, stdin))
1388 return 0;
1389 } else {
1390 buf[0] = '\n';
1391 buf[1] = '\0';
1392 }
1393 }
1394
1395 if (buf[0] == '\0')
1396 return 0;
1397 if (buf[0] == '\n') {
1398 if ((def == NULL) || (def[0] == '\0'))
1399 return 1;
1400 if (!join(buf, buf_size, def, "\n", desc2))
1401 return 0;
1402 } else if ((buf[0] == '.') && (buf[1] == '\n')) {
1403 return 1;
1404 }
1405
1406 i = strlen(buf);
1407 if (buf[i - 1] != '\n') {
1408 BIO_printf(bio_err, "weird input :-(\n");
1409 return 0;
1410 }
1411 buf[--i] = '\0';
1412 #ifdef CHARSET_EBCDIC
1413 ebcdic2ascii(buf, buf, i);
1414 #endif
1415 if (!req_check_len(i, n_min, n_max)) {
1416 if (batch || value)
1417 return 0;
1418 goto start;
1419 }
1420 return 2;
1421 }
1422
1423 static int req_check_len(int len, int n_min, int n_max)
1424 {
1425 if ((n_min > 0) && (len < n_min)) {
1426 BIO_printf(bio_err,
1427 "string is too short, it needs to be at least %d bytes long\n",
1428 n_min);
1429 return 0;
1430 }
1431 if ((n_max >= 0) && (len > n_max)) {
1432 BIO_printf(bio_err,
1433 "string is too long, it needs to be no more than %d bytes long\n",
1434 n_max);
1435 return 0;
1436 }
1437 return 1;
1438 }
1439
1440 /* Check if the end of a string matches 'end' */
1441 static int check_end(const char *str, const char *end)
1442 {
1443 size_t elen, slen;
1444 const char *tmp;
1445
1446 elen = strlen(end);
1447 slen = strlen(str);
1448 if (elen > slen)
1449 return 1;
1450 tmp = str + slen - elen;
1451 return strcmp(tmp, end);
1452 }
1453
1454 /*
1455 * Merge the two strings together into the result buffer checking for
1456 * overflow and producing an error message if there is.
1457 */
1458 static int join(char buf[], size_t buf_size, const char *name,
1459 const char *tail, const char *desc)
1460 {
1461 const size_t name_len = strlen(name), tail_len = strlen(tail);
1462
1463 if (name_len + tail_len + 1 > buf_size) {
1464 BIO_printf(bio_err, "%s '%s' too long\n", desc, name);
1465 return 0;
1466 }
1467 memcpy(buf, name, name_len);
1468 memcpy(buf + name_len, tail, tail_len + 1);
1469 return 1;
1470 }
1471
1472 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
1473 int *pkey_type, long *pkeylen,
1474 char **palgnam, ENGINE *keygen_engine)
1475 {
1476 EVP_PKEY_CTX *gctx = NULL;
1477 EVP_PKEY *param = NULL;
1478 long keylen = -1;
1479 BIO *pbio = NULL;
1480 const char *paramfile = NULL;
1481
1482 if (gstr == NULL) {
1483 *pkey_type = EVP_PKEY_RSA;
1484 keylen = *pkeylen;
1485 } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1486 *pkey_type = EVP_PKEY_RSA;
1487 keylen = atol(gstr);
1488 *pkeylen = keylen;
1489 } else if (strncmp(gstr, "param:", 6) == 0) {
1490 paramfile = gstr + 6;
1491 } else {
1492 const char *p = strchr(gstr, ':');
1493 int len;
1494 ENGINE *tmpeng;
1495 const EVP_PKEY_ASN1_METHOD *ameth;
1496
1497 if (p != NULL)
1498 len = p - gstr;
1499 else
1500 len = strlen(gstr);
1501 /*
1502 * The lookup of a the string will cover all engines so keep a note
1503 * of the implementation.
1504 */
1505
1506 ameth = EVP_PKEY_asn1_find_str(&tmpeng, gstr, len);
1507
1508 if (ameth == NULL) {
1509 BIO_printf(bio_err, "Unknown algorithm %.*s\n", len, gstr);
1510 return NULL;
1511 }
1512
1513 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL, ameth);
1514 #ifndef OPENSSL_NO_ENGINE
1515 ENGINE_finish(tmpeng);
1516 #endif
1517 if (*pkey_type == EVP_PKEY_RSA) {
1518 if (p != NULL) {
1519 keylen = atol(p + 1);
1520 *pkeylen = keylen;
1521 } else {
1522 keylen = *pkeylen;
1523 }
1524 } else if (p != NULL) {
1525 paramfile = p + 1;
1526 }
1527 }
1528
1529 if (paramfile != NULL) {
1530 pbio = BIO_new_file(paramfile, "r");
1531 if (pbio == NULL) {
1532 BIO_printf(bio_err, "Can't open parameter file %s\n", paramfile);
1533 return NULL;
1534 }
1535 param = PEM_read_bio_Parameters(pbio, NULL);
1536
1537 if (param == NULL) {
1538 X509 *x;
1539
1540 (void)BIO_reset(pbio);
1541 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1542 if (x != NULL) {
1543 param = X509_get_pubkey(x);
1544 X509_free(x);
1545 }
1546 }
1547
1548 BIO_free(pbio);
1549
1550 if (param == NULL) {
1551 BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile);
1552 return NULL;
1553 }
1554 if (*pkey_type == -1) {
1555 *pkey_type = EVP_PKEY_id(param);
1556 } else if (*pkey_type != EVP_PKEY_base_id(param)) {
1557 BIO_printf(bio_err, "Key Type does not match parameters\n");
1558 EVP_PKEY_free(param);
1559 return NULL;
1560 }
1561 }
1562
1563 if (palgnam != NULL) {
1564 const EVP_PKEY_ASN1_METHOD *ameth;
1565 ENGINE *tmpeng;
1566 const char *anam;
1567
1568 ameth = EVP_PKEY_asn1_find(&tmpeng, *pkey_type);
1569 if (ameth == NULL) {
1570 BIO_puts(bio_err, "Internal error: can't find key algorithm\n");
1571 return NULL;
1572 }
1573 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1574 *palgnam = OPENSSL_strdup(anam);
1575 #ifndef OPENSSL_NO_ENGINE
1576 ENGINE_finish(tmpeng);
1577 #endif
1578 }
1579
1580 if (param != NULL) {
1581 gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1582 *pkeylen = EVP_PKEY_bits(param);
1583 EVP_PKEY_free(param);
1584 } else {
1585 gctx = EVP_PKEY_CTX_new_id(*pkey_type, keygen_engine);
1586 }
1587
1588 if (gctx == NULL) {
1589 BIO_puts(bio_err, "Error allocating keygen context\n");
1590 ERR_print_errors(bio_err);
1591 return NULL;
1592 }
1593
1594 if (EVP_PKEY_keygen_init(gctx) <= 0) {
1595 BIO_puts(bio_err, "Error initializing keygen context\n");
1596 ERR_print_errors(bio_err);
1597 EVP_PKEY_CTX_free(gctx);
1598 return NULL;
1599 }
1600 #ifndef OPENSSL_NO_RSA
1601 if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) {
1602 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) {
1603 BIO_puts(bio_err, "Error setting RSA keysize\n");
1604 ERR_print_errors(bio_err);
1605 EVP_PKEY_CTX_free(gctx);
1606 return NULL;
1607 }
1608 }
1609 #endif
1610
1611 return gctx;
1612 }
1613
1614 static int genpkey_cb(EVP_PKEY_CTX *ctx)
1615 {
1616 char c = '*';
1617 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1618 int p;
1619 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1620 if (p == 0)
1621 c = '.';
1622 if (p == 1)
1623 c = '+';
1624 if (p == 2)
1625 c = '*';
1626 if (p == 3)
1627 c = '\n';
1628 BIO_write(b, &c, 1);
1629 (void)BIO_flush(b);
1630 return 1;
1631 }
1632
1633 static int do_pkey_ctx_init(EVP_PKEY_CTX *pkctx, STACK_OF(OPENSSL_STRING) *opts)
1634 {
1635 int i;
1636
1637 if (opts == NULL)
1638 return 1;
1639
1640 for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
1641 char *opt = sk_OPENSSL_STRING_value(opts, i);
1642 if (pkey_ctrl_string(pkctx, opt) <= 0) {
1643 BIO_printf(bio_err, "parameter error \"%s\"\n", opt);
1644 ERR_print_errors(bio_err);
1645 return 0;
1646 }
1647 }
1648
1649 return 1;
1650 }
1651
1652 static int do_x509_init(X509 *x, STACK_OF(OPENSSL_STRING) *opts)
1653 {
1654 int i;
1655
1656 if (opts == NULL)
1657 return 1;
1658
1659 for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
1660 char *opt = sk_OPENSSL_STRING_value(opts, i);
1661 if (x509_ctrl_string(x, opt) <= 0) {
1662 BIO_printf(bio_err, "parameter error \"%s\"\n", opt);
1663 ERR_print_errors(bio_err);
1664 return 0;
1665 }
1666 }
1667
1668 return 1;
1669 }
1670
1671 static int do_x509_req_init(X509_REQ *x, STACK_OF(OPENSSL_STRING) *opts)
1672 {
1673 int i;
1674
1675 if (opts == NULL)
1676 return 1;
1677
1678 for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
1679 char *opt = sk_OPENSSL_STRING_value(opts, i);
1680 if (x509_req_ctrl_string(x, opt) <= 0) {
1681 BIO_printf(bio_err, "parameter error \"%s\"\n", opt);
1682 ERR_print_errors(bio_err);
1683 return 0;
1684 }
1685 }
1686
1687 return 1;
1688 }
1689
1690 static int do_sign_init(EVP_MD_CTX *ctx, EVP_PKEY *pkey,
1691 const EVP_MD *md, STACK_OF(OPENSSL_STRING) *sigopts)
1692 {
1693 EVP_PKEY_CTX *pkctx = NULL;
1694 int def_nid;
1695
1696 if (ctx == NULL)
1697 return 0;
1698 /*
1699 * EVP_PKEY_get_default_digest_nid() returns 2 if the digest is mandatory
1700 * for this algorithm.
1701 */
1702 if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) == 2
1703 && def_nid == NID_undef) {
1704 /* The signing algorithm requires there to be no digest */
1705 md = NULL;
1706 }
1707 return EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey)
1708 && do_pkey_ctx_init(pkctx, sigopts);
1709 }
1710
1711 int do_X509_sign(X509 *x, EVP_PKEY *pkey, const EVP_MD *md,
1712 STACK_OF(OPENSSL_STRING) *sigopts)
1713 {
1714 int rv = 0;
1715 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1716
1717 if (do_sign_init(mctx, pkey, md, sigopts) > 0)
1718 rv = (X509_sign_ctx(x, mctx) > 0);
1719 EVP_MD_CTX_free(mctx);
1720 return rv;
1721 }
1722
1723 int do_X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md,
1724 STACK_OF(OPENSSL_STRING) *sigopts)
1725 {
1726 int rv = 0;
1727 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1728
1729 if (do_sign_init(mctx, pkey, md, sigopts) > 0)
1730 rv = (X509_REQ_sign_ctx(x, mctx) > 0);
1731 EVP_MD_CTX_free(mctx);
1732 return rv;
1733 }
1734
1735 int do_X509_verify(X509 *x, EVP_PKEY *pkey, STACK_OF(OPENSSL_STRING) *vfyopts)
1736 {
1737 int rv = 0;
1738
1739 if (do_x509_init(x, vfyopts) > 0)
1740 rv = (X509_verify(x, pkey) > 0);
1741 return rv;
1742 }
1743
1744 int do_X509_REQ_verify(X509_REQ *x, EVP_PKEY *pkey,
1745 STACK_OF(OPENSSL_STRING) *vfyopts)
1746 {
1747 int rv = 0;
1748
1749 if (do_x509_req_init(x, vfyopts) > 0)
1750 rv = (X509_REQ_verify(x, pkey) > 0);
1751 return rv;
1752 }
1753
1754 int do_X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const EVP_MD *md,
1755 STACK_OF(OPENSSL_STRING) *sigopts)
1756 {
1757 int rv = 0;
1758 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1759
1760 if (do_sign_init(mctx, pkey, md, sigopts) > 0)
1761 rv = (X509_CRL_sign_ctx(x, mctx) > 0);
1762 EVP_MD_CTX_free(mctx);
1763 return rv;
1764 }
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