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Test RSA oaep in fips mode
[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()) == NULL)
746 goto end;
747
748 /* Set version to V3 */
749 if ((extensions != NULL || addext_conf != NULL)
750 && !X509_set_version(x509ss, 2))
751 goto end;
752 if (serial != NULL) {
753 if (!X509_set_serialNumber(x509ss, serial))
754 goto end;
755 } else {
756 if (!rand_serial(NULL, X509_get_serialNumber(x509ss)))
757 goto end;
758 }
759
760 if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req)))
761 goto end;
762 if (days == 0) {
763 /* set default days if it's not specified */
764 days = 30;
765 }
766 if (!set_cert_times(x509ss, NULL, NULL, days))
767 goto end;
768 if (!X509_set_subject_name
769 (x509ss, X509_REQ_get_subject_name(req)))
770 goto end;
771 tmppkey = X509_REQ_get0_pubkey(req);
772 if (!tmppkey || !X509_set_pubkey(x509ss, tmppkey))
773 goto end;
774
775 /* Set up V3 context struct */
776
777 X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
778 X509V3_set_nconf(&ext_ctx, req_conf);
779
780 /* Add extensions */
781 if (extensions != NULL && !X509V3_EXT_add_nconf(req_conf,
782 &ext_ctx, extensions,
783 x509ss)) {
784 BIO_printf(bio_err, "Error Loading extension section %s\n",
785 extensions);
786 goto end;
787 }
788 if (addext_conf != NULL
789 && !X509V3_EXT_add_nconf(addext_conf, &ext_ctx, "default",
790 x509ss)) {
791 BIO_printf(bio_err, "Error Loading command line extensions\n");
792 goto end;
793 }
794
795 /* If a pre-cert was requested, we need to add a poison extension */
796 if (precert) {
797 if (X509_add1_ext_i2d(x509ss, NID_ct_precert_poison, NULL, 1, 0)
798 != 1) {
799 BIO_printf(bio_err, "Error adding poison extension\n");
800 goto end;
801 }
802 }
803
804 i = do_X509_sign(x509ss, pkey, digest, sigopts);
805 if (!i) {
806 ERR_print_errors(bio_err);
807 goto end;
808 }
809 } else {
810 X509V3_CTX ext_ctx;
811
812 /* Set up V3 context struct */
813
814 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
815 X509V3_set_nconf(&ext_ctx, req_conf);
816
817 /* Add extensions */
818 if (req_exts != NULL
819 && !X509V3_EXT_REQ_add_nconf(req_conf, &ext_ctx,
820 req_exts, req)) {
821 BIO_printf(bio_err, "Error Loading extension section %s\n",
822 req_exts);
823 goto end;
824 }
825 if (addext_conf != NULL
826 && !X509V3_EXT_REQ_add_nconf(addext_conf, &ext_ctx, "default",
827 req)) {
828 BIO_printf(bio_err, "Error Loading command line extensions\n");
829 goto end;
830 }
831 i = do_X509_REQ_sign(req, pkey, digest, sigopts);
832 if (!i) {
833 ERR_print_errors(bio_err);
834 goto end;
835 }
836 }
837 }
838
839 if (subj && x509) {
840 BIO_printf(bio_err, "Cannot modify certificate subject\n");
841 goto end;
842 }
843
844 if (subj && !x509) {
845 if (verbose) {
846 BIO_printf(bio_err, "Modifying Request's Subject\n");
847 print_name(bio_err, "old subject=",
848 X509_REQ_get_subject_name(req), get_nameopt());
849 }
850
851 if (build_subject(req, subj, chtype, multirdn) == 0) {
852 BIO_printf(bio_err, "ERROR: cannot modify subject\n");
853 ret = 1;
854 goto end;
855 }
856
857 if (verbose) {
858 print_name(bio_err, "new subject=",
859 X509_REQ_get_subject_name(req), get_nameopt());
860 }
861 }
862
863 if (verify && !x509) {
864 EVP_PKEY *tpubkey = pkey;
865
866 if (tpubkey == NULL) {
867 tpubkey = X509_REQ_get0_pubkey(req);
868 if (tpubkey == NULL)
869 goto end;
870 }
871
872 i = do_X509_REQ_verify(req, tpubkey, vfyopts);
873
874 if (i < 0) {
875 goto end;
876 } else if (i == 0) {
877 BIO_printf(bio_err, "verify failure\n");
878 ERR_print_errors(bio_err);
879 } else { /* if (i > 0) */
880 BIO_printf(bio_err, "verify OK\n");
881 }
882 }
883
884 if (noout && !text && !modulus && !subject && !pubkey) {
885 ret = 0;
886 goto end;
887 }
888
889 out = bio_open_default(outfile,
890 keyout != NULL && outfile != NULL &&
891 strcmp(keyout, outfile) == 0 ? 'a' : 'w',
892 outformat);
893 if (out == NULL)
894 goto end;
895
896 if (pubkey) {
897 EVP_PKEY *tpubkey = X509_REQ_get0_pubkey(req);
898
899 if (tpubkey == NULL) {
900 BIO_printf(bio_err, "Error getting public key\n");
901 ERR_print_errors(bio_err);
902 goto end;
903 }
904 PEM_write_bio_PUBKEY(out, tpubkey);
905 }
906
907 if (text) {
908 if (x509)
909 ret = X509_print_ex(out, x509ss, get_nameopt(), reqflag);
910 else
911 ret = X509_REQ_print_ex(out, req, get_nameopt(), reqflag);
912
913 if (ret == 0) {
914 if (x509)
915 BIO_printf(bio_err, "Error printing certificate\n");
916 else
917 BIO_printf(bio_err, "Error printing certificate request\n");
918
919 ERR_print_errors(bio_err);
920 goto end;
921 }
922 }
923
924 if (subject) {
925 if (x509)
926 print_name(out, "subject=", X509_get_subject_name(x509ss),
927 get_nameopt());
928 else
929 print_name(out, "subject=", X509_REQ_get_subject_name(req),
930 get_nameopt());
931 }
932
933 if (modulus) {
934 EVP_PKEY *tpubkey;
935
936 if (x509)
937 tpubkey = X509_get0_pubkey(x509ss);
938 else
939 tpubkey = X509_REQ_get0_pubkey(req);
940 if (tpubkey == NULL) {
941 fprintf(stdout, "Modulus=unavailable\n");
942 goto end;
943 }
944 fprintf(stdout, "Modulus=");
945 #ifndef OPENSSL_NO_RSA
946 if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA) {
947 const BIGNUM *n;
948 RSA_get0_key(EVP_PKEY_get0_RSA(tpubkey), &n, NULL, NULL);
949 BN_print(out, n);
950 } else
951 #endif
952 fprintf(stdout, "Wrong Algorithm type");
953 fprintf(stdout, "\n");
954 }
955
956 if (!noout && !x509) {
957 if (outformat == FORMAT_ASN1)
958 i = i2d_X509_REQ_bio(out, req);
959 else if (newhdr)
960 i = PEM_write_bio_X509_REQ_NEW(out, req);
961 else
962 i = PEM_write_bio_X509_REQ(out, req);
963 if (!i) {
964 BIO_printf(bio_err, "unable to write X509 request\n");
965 goto end;
966 }
967 }
968 if (!noout && x509 && (x509ss != NULL)) {
969 if (outformat == FORMAT_ASN1)
970 i = i2d_X509_bio(out, x509ss);
971 else
972 i = PEM_write_bio_X509(out, x509ss);
973 if (!i) {
974 BIO_printf(bio_err, "unable to write X509 certificate\n");
975 goto end;
976 }
977 }
978 ret = 0;
979 end:
980 if (ret) {
981 ERR_print_errors(bio_err);
982 }
983 NCONF_free(req_conf);
984 NCONF_free(addext_conf);
985 BIO_free(addext_bio);
986 BIO_free_all(out);
987 EVP_PKEY_free(pkey);
988 EVP_PKEY_CTX_free(genctx);
989 sk_OPENSSL_STRING_free(pkeyopts);
990 sk_OPENSSL_STRING_free(sigopts);
991 sk_OPENSSL_STRING_free(vfyopts);
992 lh_OPENSSL_STRING_doall(addexts, exts_cleanup);
993 lh_OPENSSL_STRING_free(addexts);
994 #ifndef OPENSSL_NO_ENGINE
995 ENGINE_free(gen_eng);
996 #endif
997 OPENSSL_free(keyalgstr);
998 X509_REQ_free(req);
999 X509_free(x509ss);
1000 ASN1_INTEGER_free(serial);
1001 release_engine(e);
1002 if (passin != nofree_passin)
1003 OPENSSL_free(passin);
1004 if (passout != nofree_passout)
1005 OPENSSL_free(passout);
1006 return ret;
1007 }
1008
1009 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *subj, int multirdn,
1010 int attribs, unsigned long chtype)
1011 {
1012 int ret = 0, i;
1013 char no_prompt = 0;
1014 STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
1015 char *tmp, *dn_sect, *attr_sect;
1016
1017 tmp = NCONF_get_string(req_conf, section, PROMPT);
1018 if (tmp == NULL)
1019 ERR_clear_error();
1020 if ((tmp != NULL) && strcmp(tmp, "no") == 0)
1021 no_prompt = 1;
1022
1023 dn_sect = NCONF_get_string(req_conf, section, DISTINGUISHED_NAME);
1024 if (dn_sect == NULL) {
1025 BIO_printf(bio_err, "unable to find '%s' in config\n",
1026 DISTINGUISHED_NAME);
1027 goto err;
1028 }
1029 dn_sk = NCONF_get_section(req_conf, dn_sect);
1030 if (dn_sk == NULL) {
1031 BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect);
1032 goto err;
1033 }
1034
1035 attr_sect = NCONF_get_string(req_conf, section, ATTRIBUTES);
1036 if (attr_sect == NULL) {
1037 ERR_clear_error();
1038 attr_sk = NULL;
1039 } else {
1040 attr_sk = NCONF_get_section(req_conf, attr_sect);
1041 if (attr_sk == NULL) {
1042 BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect);
1043 goto err;
1044 }
1045 }
1046
1047 /* setup version number */
1048 if (!X509_REQ_set_version(req, 0L))
1049 goto err; /* version 1 */
1050
1051 if (subj)
1052 i = build_subject(req, subj, chtype, multirdn);
1053 else if (no_prompt)
1054 i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
1055 else
1056 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs,
1057 chtype);
1058 if (!i)
1059 goto err;
1060
1061 if (!X509_REQ_set_pubkey(req, pkey))
1062 goto err;
1063
1064 ret = 1;
1065 err:
1066 return ret;
1067 }
1068
1069 /*
1070 * subject is expected to be in the format /type0=value0/type1=value1/type2=...
1071 * where characters may be escaped by \
1072 */
1073 static int build_subject(X509_REQ *req, const char *subject, unsigned long chtype,
1074 int multirdn)
1075 {
1076 X509_NAME *n;
1077
1078 if ((n = parse_name(subject, chtype, multirdn)) == NULL)
1079 return 0;
1080
1081 if (!X509_REQ_set_subject_name(req, n)) {
1082 X509_NAME_free(n);
1083 return 0;
1084 }
1085 X509_NAME_free(n);
1086 return 1;
1087 }
1088
1089 static int prompt_info(X509_REQ *req,
1090 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
1091 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
1092 int attribs, unsigned long chtype)
1093 {
1094 int i;
1095 char *p, *q;
1096 char buf[100];
1097 int nid, mval;
1098 long n_min, n_max;
1099 char *type, *value;
1100 const char *def;
1101 CONF_VALUE *v;
1102 X509_NAME *subj = X509_REQ_get_subject_name(req);
1103
1104 if (!batch) {
1105 BIO_printf(bio_err,
1106 "You are about to be asked to enter information that will be incorporated\n");
1107 BIO_printf(bio_err, "into your certificate request.\n");
1108 BIO_printf(bio_err,
1109 "What you are about to enter is what is called a Distinguished Name or a DN.\n");
1110 BIO_printf(bio_err,
1111 "There are quite a few fields but you can leave some blank\n");
1112 BIO_printf(bio_err,
1113 "For some fields there will be a default value,\n");
1114 BIO_printf(bio_err,
1115 "If you enter '.', the field will be left blank.\n");
1116 BIO_printf(bio_err, "-----\n");
1117 }
1118
1119 if (sk_CONF_VALUE_num(dn_sk)) {
1120 i = -1;
1121 start:
1122 for ( ; ; ) {
1123 i++;
1124 if (sk_CONF_VALUE_num(dn_sk) <= i)
1125 break;
1126
1127 v = sk_CONF_VALUE_value(dn_sk, i);
1128 p = q = NULL;
1129 type = v->name;
1130 if (!check_end(type, "_min") || !check_end(type, "_max") ||
1131 !check_end(type, "_default") || !check_end(type, "_value"))
1132 continue;
1133 /*
1134 * Skip past any leading X. X: X, etc to allow for multiple
1135 * instances
1136 */
1137 for (p = v->name; *p; p++)
1138 if ((*p == ':') || (*p == ',') || (*p == '.')) {
1139 p++;
1140 if (*p)
1141 type = p;
1142 break;
1143 }
1144 if (*type == '+') {
1145 mval = -1;
1146 type++;
1147 } else {
1148 mval = 0;
1149 }
1150 /* If OBJ not recognised ignore it */
1151 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1152 goto start;
1153 if (!join(buf, sizeof(buf), v->name, "_default", "Name"))
1154 return 0;
1155 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1156 ERR_clear_error();
1157 def = "";
1158 }
1159
1160 if (!join(buf, sizeof(buf), v->name, "_value", "Name"))
1161 return 0;
1162 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1163 ERR_clear_error();
1164 value = NULL;
1165 }
1166
1167 if (!join(buf, sizeof(buf), v->name, "_min", "Name"))
1168 return 0;
1169 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1170 ERR_clear_error();
1171 n_min = -1;
1172 }
1173
1174
1175 if (!join(buf, sizeof(buf), v->name, "_max", "Name"))
1176 return 0;
1177 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1178 ERR_clear_error();
1179 n_max = -1;
1180 }
1181
1182 if (!add_DN_object(subj, v->value, def, value, nid,
1183 n_min, n_max, chtype, mval))
1184 return 0;
1185 }
1186 if (X509_NAME_entry_count(subj) == 0) {
1187 BIO_printf(bio_err, "error, no objects specified in config file\n");
1188 return 0;
1189 }
1190
1191 if (attribs) {
1192 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0)
1193 && (!batch)) {
1194 BIO_printf(bio_err,
1195 "\nPlease enter the following 'extra' attributes\n");
1196 BIO_printf(bio_err,
1197 "to be sent with your certificate request\n");
1198 }
1199
1200 i = -1;
1201 start2:
1202 for ( ; ; ) {
1203 i++;
1204 if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i))
1205 break;
1206
1207 v = sk_CONF_VALUE_value(attr_sk, i);
1208 type = v->name;
1209 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1210 goto start2;
1211
1212 if (!join(buf, sizeof(buf), type, "_default", "Name"))
1213 return 0;
1214 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1215 == NULL) {
1216 ERR_clear_error();
1217 def = "";
1218 }
1219
1220 if (!join(buf, sizeof(buf), type, "_value", "Name"))
1221 return 0;
1222 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1223 == NULL) {
1224 ERR_clear_error();
1225 value = NULL;
1226 }
1227
1228 if (!join(buf, sizeof(buf), type,"_min", "Name"))
1229 return 0;
1230 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1231 ERR_clear_error();
1232 n_min = -1;
1233 }
1234
1235 if (!join(buf, sizeof(buf), type, "_max", "Name"))
1236 return 0;
1237 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1238 ERR_clear_error();
1239 n_max = -1;
1240 }
1241
1242 if (!add_attribute_object(req,
1243 v->value, def, value, nid, n_min,
1244 n_max, chtype))
1245 return 0;
1246 }
1247 }
1248 } else {
1249 BIO_printf(bio_err, "No template, please set one up.\n");
1250 return 0;
1251 }
1252
1253 return 1;
1254
1255 }
1256
1257 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1258 STACK_OF(CONF_VALUE) *attr_sk, int attribs,
1259 unsigned long chtype)
1260 {
1261 int i, spec_char, plus_char;
1262 char *p, *q;
1263 char *type;
1264 CONF_VALUE *v;
1265 X509_NAME *subj;
1266
1267 subj = X509_REQ_get_subject_name(req);
1268
1269 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1270 int mval;
1271 v = sk_CONF_VALUE_value(dn_sk, i);
1272 p = q = NULL;
1273 type = v->name;
1274 /*
1275 * Skip past any leading X. X: X, etc to allow for multiple instances
1276 */
1277 for (p = v->name; *p; p++) {
1278 #ifndef CHARSET_EBCDIC
1279 spec_char = ((*p == ':') || (*p == ',') || (*p == '.'));
1280 #else
1281 spec_char = ((*p == os_toascii[':']) || (*p == os_toascii[','])
1282 || (*p == os_toascii['.']));
1283 #endif
1284 if (spec_char) {
1285 p++;
1286 if (*p)
1287 type = p;
1288 break;
1289 }
1290 }
1291 #ifndef CHARSET_EBCDIC
1292 plus_char = (*type == '+');
1293 #else
1294 plus_char = (*type == os_toascii['+']);
1295 #endif
1296 if (plus_char) {
1297 type++;
1298 mval = -1;
1299 } else {
1300 mval = 0;
1301 }
1302 if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1303 (unsigned char *)v->value, -1, -1,
1304 mval))
1305 return 0;
1306
1307 }
1308
1309 if (!X509_NAME_entry_count(subj)) {
1310 BIO_printf(bio_err, "error, no objects specified in config file\n");
1311 return 0;
1312 }
1313 if (attribs) {
1314 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1315 v = sk_CONF_VALUE_value(attr_sk, i);
1316 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1317 (unsigned char *)v->value, -1))
1318 return 0;
1319 }
1320 }
1321 return 1;
1322 }
1323
1324 static int add_DN_object(X509_NAME *n, char *text, const char *def,
1325 char *value, int nid, int n_min, int n_max,
1326 unsigned long chtype, int mval)
1327 {
1328 int ret = 0;
1329 char buf[1024];
1330
1331 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1332 "DN value", "DN default");
1333 if ((ret == 0) || (ret == 1))
1334 return ret;
1335 ret = 1;
1336
1337 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1338 (unsigned char *)buf, -1, -1, mval))
1339 ret = 0;
1340
1341 return ret;
1342 }
1343
1344 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
1345 char *value, int nid, int n_min,
1346 int n_max, unsigned long chtype)
1347 {
1348 int ret = 0;
1349 char buf[1024];
1350
1351 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1352 "Attribute value", "Attribute default");
1353 if ((ret == 0) || (ret == 1))
1354 return ret;
1355 ret = 1;
1356
1357 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1358 (unsigned char *)buf, -1)) {
1359 BIO_printf(bio_err, "Error adding attribute\n");
1360 ERR_print_errors(bio_err);
1361 ret = 0;
1362 }
1363
1364 return ret;
1365 }
1366
1367
1368 static int build_data(char *text, const char *def,
1369 char *value, int n_min, int n_max,
1370 char *buf, const int buf_size,
1371 const char *desc1, const char *desc2
1372 )
1373 {
1374 int i;
1375 start:
1376 if (!batch)
1377 BIO_printf(bio_err, "%s [%s]:", text, def);
1378 (void)BIO_flush(bio_err);
1379 if (value != NULL) {
1380 if (!join(buf, buf_size, value, "\n", desc1))
1381 return 0;
1382 BIO_printf(bio_err, "%s\n", value);
1383 } else {
1384 buf[0] = '\0';
1385 if (!batch) {
1386 if (!fgets(buf, buf_size, stdin))
1387 return 0;
1388 } else {
1389 buf[0] = '\n';
1390 buf[1] = '\0';
1391 }
1392 }
1393
1394 if (buf[0] == '\0')
1395 return 0;
1396 if (buf[0] == '\n') {
1397 if ((def == NULL) || (def[0] == '\0'))
1398 return 1;
1399 if (!join(buf, buf_size, def, "\n", desc2))
1400 return 0;
1401 } else if ((buf[0] == '.') && (buf[1] == '\n')) {
1402 return 1;
1403 }
1404
1405 i = strlen(buf);
1406 if (buf[i - 1] != '\n') {
1407 BIO_printf(bio_err, "weird input :-(\n");
1408 return 0;
1409 }
1410 buf[--i] = '\0';
1411 #ifdef CHARSET_EBCDIC
1412 ebcdic2ascii(buf, buf, i);
1413 #endif
1414 if (!req_check_len(i, n_min, n_max)) {
1415 if (batch || value)
1416 return 0;
1417 goto start;
1418 }
1419 return 2;
1420 }
1421
1422 static int req_check_len(int len, int n_min, int n_max)
1423 {
1424 if ((n_min > 0) && (len < n_min)) {
1425 BIO_printf(bio_err,
1426 "string is too short, it needs to be at least %d bytes long\n",
1427 n_min);
1428 return 0;
1429 }
1430 if ((n_max >= 0) && (len > n_max)) {
1431 BIO_printf(bio_err,
1432 "string is too long, it needs to be no more than %d bytes long\n",
1433 n_max);
1434 return 0;
1435 }
1436 return 1;
1437 }
1438
1439 /* Check if the end of a string matches 'end' */
1440 static int check_end(const char *str, const char *end)
1441 {
1442 size_t elen, slen;
1443 const char *tmp;
1444
1445 elen = strlen(end);
1446 slen = strlen(str);
1447 if (elen > slen)
1448 return 1;
1449 tmp = str + slen - elen;
1450 return strcmp(tmp, end);
1451 }
1452
1453 /*
1454 * Merge the two strings together into the result buffer checking for
1455 * overflow and producing an error message if there is.
1456 */
1457 static int join(char buf[], size_t buf_size, const char *name,
1458 const char *tail, const char *desc)
1459 {
1460 const size_t name_len = strlen(name), tail_len = strlen(tail);
1461
1462 if (name_len + tail_len + 1 > buf_size) {
1463 BIO_printf(bio_err, "%s '%s' too long\n", desc, name);
1464 return 0;
1465 }
1466 memcpy(buf, name, name_len);
1467 memcpy(buf + name_len, tail, tail_len + 1);
1468 return 1;
1469 }
1470
1471 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
1472 int *pkey_type, long *pkeylen,
1473 char **palgnam, ENGINE *keygen_engine)
1474 {
1475 EVP_PKEY_CTX *gctx = NULL;
1476 EVP_PKEY *param = NULL;
1477 long keylen = -1;
1478 BIO *pbio = NULL;
1479 const char *paramfile = NULL;
1480
1481 if (gstr == NULL) {
1482 *pkey_type = EVP_PKEY_RSA;
1483 keylen = *pkeylen;
1484 } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1485 *pkey_type = EVP_PKEY_RSA;
1486 keylen = atol(gstr);
1487 *pkeylen = keylen;
1488 } else if (strncmp(gstr, "param:", 6) == 0) {
1489 paramfile = gstr + 6;
1490 } else {
1491 const char *p = strchr(gstr, ':');
1492 int len;
1493 ENGINE *tmpeng;
1494 const EVP_PKEY_ASN1_METHOD *ameth;
1495
1496 if (p != NULL)
1497 len = p - gstr;
1498 else
1499 len = strlen(gstr);
1500 /*
1501 * The lookup of a the string will cover all engines so keep a note
1502 * of the implementation.
1503 */
1504
1505 ameth = EVP_PKEY_asn1_find_str(&tmpeng, gstr, len);
1506
1507 if (ameth == NULL) {
1508 BIO_printf(bio_err, "Unknown algorithm %.*s\n", len, gstr);
1509 return NULL;
1510 }
1511
1512 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL, ameth);
1513 #ifndef OPENSSL_NO_ENGINE
1514 ENGINE_finish(tmpeng);
1515 #endif
1516 if (*pkey_type == EVP_PKEY_RSA) {
1517 if (p != NULL) {
1518 keylen = atol(p + 1);
1519 *pkeylen = keylen;
1520 } else {
1521 keylen = *pkeylen;
1522 }
1523 } else if (p != NULL) {
1524 paramfile = p + 1;
1525 }
1526 }
1527
1528 if (paramfile != NULL) {
1529 pbio = BIO_new_file(paramfile, "r");
1530 if (pbio == NULL) {
1531 BIO_printf(bio_err, "Can't open parameter file %s\n", paramfile);
1532 return NULL;
1533 }
1534 param = PEM_read_bio_Parameters(pbio, NULL);
1535
1536 if (param == NULL) {
1537 X509 *x;
1538
1539 (void)BIO_reset(pbio);
1540 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1541 if (x != NULL) {
1542 param = X509_get_pubkey(x);
1543 X509_free(x);
1544 }
1545 }
1546
1547 BIO_free(pbio);
1548
1549 if (param == NULL) {
1550 BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile);
1551 return NULL;
1552 }
1553 if (*pkey_type == -1) {
1554 *pkey_type = EVP_PKEY_id(param);
1555 } else if (*pkey_type != EVP_PKEY_base_id(param)) {
1556 BIO_printf(bio_err, "Key Type does not match parameters\n");
1557 EVP_PKEY_free(param);
1558 return NULL;
1559 }
1560 }
1561
1562 if (palgnam != NULL) {
1563 const EVP_PKEY_ASN1_METHOD *ameth;
1564 ENGINE *tmpeng;
1565 const char *anam;
1566
1567 ameth = EVP_PKEY_asn1_find(&tmpeng, *pkey_type);
1568 if (ameth == NULL) {
1569 BIO_puts(bio_err, "Internal error: can't find key algorithm\n");
1570 return NULL;
1571 }
1572 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1573 *palgnam = OPENSSL_strdup(anam);
1574 #ifndef OPENSSL_NO_ENGINE
1575 ENGINE_finish(tmpeng);
1576 #endif
1577 }
1578
1579 if (param != NULL) {
1580 gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1581 *pkeylen = EVP_PKEY_bits(param);
1582 EVP_PKEY_free(param);
1583 } else {
1584 gctx = EVP_PKEY_CTX_new_id(*pkey_type, keygen_engine);
1585 }
1586
1587 if (gctx == NULL) {
1588 BIO_puts(bio_err, "Error allocating keygen context\n");
1589 ERR_print_errors(bio_err);
1590 return NULL;
1591 }
1592
1593 if (EVP_PKEY_keygen_init(gctx) <= 0) {
1594 BIO_puts(bio_err, "Error initializing keygen context\n");
1595 ERR_print_errors(bio_err);
1596 EVP_PKEY_CTX_free(gctx);
1597 return NULL;
1598 }
1599 #ifndef OPENSSL_NO_RSA
1600 if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) {
1601 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) {
1602 BIO_puts(bio_err, "Error setting RSA keysize\n");
1603 ERR_print_errors(bio_err);
1604 EVP_PKEY_CTX_free(gctx);
1605 return NULL;
1606 }
1607 }
1608 #endif
1609
1610 return gctx;
1611 }
1612
1613 static int genpkey_cb(EVP_PKEY_CTX *ctx)
1614 {
1615 char c = '*';
1616 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1617 int p;
1618 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1619 if (p == 0)
1620 c = '.';
1621 if (p == 1)
1622 c = '+';
1623 if (p == 2)
1624 c = '*';
1625 if (p == 3)
1626 c = '\n';
1627 BIO_write(b, &c, 1);
1628 (void)BIO_flush(b);
1629 return 1;
1630 }
1631
1632 static int do_pkey_ctx_init(EVP_PKEY_CTX *pkctx, STACK_OF(OPENSSL_STRING) *opts)
1633 {
1634 int i;
1635
1636 if (opts == NULL)
1637 return 1;
1638
1639 for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
1640 char *opt = sk_OPENSSL_STRING_value(opts, i);
1641 if (pkey_ctrl_string(pkctx, opt) <= 0) {
1642 BIO_printf(bio_err, "parameter error \"%s\"\n", opt);
1643 ERR_print_errors(bio_err);
1644 return 0;
1645 }
1646 }
1647
1648 return 1;
1649 }
1650
1651 static int do_x509_init(X509 *x, STACK_OF(OPENSSL_STRING) *opts)
1652 {
1653 int i;
1654
1655 if (opts == NULL)
1656 return 1;
1657
1658 for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
1659 char *opt = sk_OPENSSL_STRING_value(opts, i);
1660 if (x509_ctrl_string(x, opt) <= 0) {
1661 BIO_printf(bio_err, "parameter error \"%s\"\n", opt);
1662 ERR_print_errors(bio_err);
1663 return 0;
1664 }
1665 }
1666
1667 return 1;
1668 }
1669
1670 static int do_x509_req_init(X509_REQ *x, STACK_OF(OPENSSL_STRING) *opts)
1671 {
1672 int i;
1673
1674 if (opts == NULL)
1675 return 1;
1676
1677 for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
1678 char *opt = sk_OPENSSL_STRING_value(opts, i);
1679 if (x509_req_ctrl_string(x, opt) <= 0) {
1680 BIO_printf(bio_err, "parameter error \"%s\"\n", opt);
1681 ERR_print_errors(bio_err);
1682 return 0;
1683 }
1684 }
1685
1686 return 1;
1687 }
1688
1689 static int do_sign_init(EVP_MD_CTX *ctx, EVP_PKEY *pkey,
1690 const EVP_MD *md, STACK_OF(OPENSSL_STRING) *sigopts)
1691 {
1692 EVP_PKEY_CTX *pkctx = NULL;
1693 int def_nid;
1694
1695 if (ctx == NULL)
1696 return 0;
1697 /*
1698 * EVP_PKEY_get_default_digest_nid() returns 2 if the digest is mandatory
1699 * for this algorithm.
1700 */
1701 if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) == 2
1702 && def_nid == NID_undef) {
1703 /* The signing algorithm requires there to be no digest */
1704 md = NULL;
1705 }
1706 return EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey)
1707 && do_pkey_ctx_init(pkctx, sigopts);
1708 }
1709
1710 int do_X509_sign(X509 *x, EVP_PKEY *pkey, const EVP_MD *md,
1711 STACK_OF(OPENSSL_STRING) *sigopts)
1712 {
1713 int rv = 0;
1714 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1715
1716 if (do_sign_init(mctx, pkey, md, sigopts) > 0)
1717 rv = (X509_sign_ctx(x, mctx) > 0);
1718 EVP_MD_CTX_free(mctx);
1719 return rv;
1720 }
1721
1722 int do_X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md,
1723 STACK_OF(OPENSSL_STRING) *sigopts)
1724 {
1725 int rv = 0;
1726 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1727
1728 if (do_sign_init(mctx, pkey, md, sigopts) > 0)
1729 rv = (X509_REQ_sign_ctx(x, mctx) > 0);
1730 EVP_MD_CTX_free(mctx);
1731 return rv;
1732 }
1733
1734 int do_X509_verify(X509 *x, EVP_PKEY *pkey, STACK_OF(OPENSSL_STRING) *vfyopts)
1735 {
1736 int rv = 0;
1737
1738 if (do_x509_init(x, vfyopts) > 0)
1739 rv = (X509_verify(x, pkey) > 0);
1740 return rv;
1741 }
1742
1743 int do_X509_REQ_verify(X509_REQ *x, EVP_PKEY *pkey,
1744 STACK_OF(OPENSSL_STRING) *vfyopts)
1745 {
1746 int rv = 0;
1747
1748 if (do_x509_req_init(x, vfyopts) > 0)
1749 rv = (X509_REQ_verify(x, pkey) > 0);
1750 return rv;
1751 }
1752
1753 int do_X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const EVP_MD *md,
1754 STACK_OF(OPENSSL_STRING) *sigopts)
1755 {
1756 int rv = 0;
1757 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1758
1759 if (do_sign_init(mctx, pkey, md, sigopts) > 0)
1760 rv = (X509_CRL_sign_ctx(x, mctx) > 0);
1761 EVP_MD_CTX_free(mctx);
1762 return rv;
1763 }
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