1 /* $OpenBSD: req.c,v 1.12 2015/10/17 15:00:11 doug Exp $ */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 /* Until the key-gen callbacks are modified to use newer prototypes, we allow 60 * deprecated functions for openssl-internal code */ 61 #ifdef OPENSSL_NO_DEPRECATED 62 #undef OPENSSL_NO_DEPRECATED 63 #endif 64 65 #include <stdio.h> 66 #include <stdlib.h> 67 #include <limits.h> 68 #include <string.h> 69 #include <time.h> 70 71 #include "apps.h" 72 73 #include <openssl/asn1.h> 74 #include <openssl/bio.h> 75 #include <openssl/bn.h> 76 #include <openssl/conf.h> 77 #include <openssl/err.h> 78 #include <openssl/evp.h> 79 #include <openssl/objects.h> 80 #include <openssl/pem.h> 81 #include <openssl/x509.h> 82 #include <openssl/x509v3.h> 83 84 #include <openssl/dsa.h> 85 86 #include <openssl/rsa.h> 87 88 #define SECTION "req" 89 90 #define BITS "default_bits" 91 #define KEYFILE "default_keyfile" 92 #define PROMPT "prompt" 93 #define DISTINGUISHED_NAME "distinguished_name" 94 #define ATTRIBUTES "attributes" 95 #define V3_EXTENSIONS "x509_extensions" 96 #define REQ_EXTENSIONS "req_extensions" 97 #define STRING_MASK "string_mask" 98 #define UTF8_IN "utf8" 99 100 #define DEFAULT_KEY_LENGTH 2048 101 #define MIN_KEY_LENGTH 384 102 103 104 /* -inform arg - input format - default PEM (DER or PEM) 105 * -outform arg - output format - default PEM 106 * -in arg - input file - default stdin 107 * -out arg - output file - default stdout 108 * -verify - check request signature 109 * -noout - don't print stuff out. 110 * -text - print out human readable text. 111 * -nodes - no des encryption 112 * -config file - Load configuration file. 113 * -key file - make a request using key in file (or use it for verification). 114 * -keyform arg - key file format. 115 * -newkey - make a key and a request. 116 * -modulus - print RSA modulus. 117 * -pubkey - output Public Key. 118 * -x509 - output a self signed X509 structure instead. 119 * -asn1-kludge - output new certificate request in a format that some CA's 120 * require. This format is wrong 121 */ 122 123 static int make_REQ(X509_REQ * req, EVP_PKEY * pkey, char *dn, int multirdn, 124 int attribs, unsigned long chtype); 125 static int build_subject(X509_REQ * req, char *subj, unsigned long chtype, 126 int multirdn); 127 static int prompt_info(X509_REQ * req, 128 STACK_OF(CONF_VALUE) * dn_sk, char *dn_sect, 129 STACK_OF(CONF_VALUE) * attr_sk, char *attr_sect, int attribs, 130 unsigned long chtype); 131 static int auto_info(X509_REQ * req, STACK_OF(CONF_VALUE) * sk, 132 STACK_OF(CONF_VALUE) * attr, int attribs, 133 unsigned long chtype); 134 static int add_attribute_object(X509_REQ * req, char *text, const char *def, 135 char *value, int nid, int n_min, 136 int n_max, unsigned long chtype); 137 static int add_DN_object(X509_NAME * n, char *text, const char *def, char *value, 138 int nid, int n_min, int n_max, unsigned long chtype, int mval); 139 static int genpkey_cb(EVP_PKEY_CTX * ctx); 140 static int req_check_len(int len, int n_min, int n_max); 141 static int check_end(const char *str, const char *end); 142 static EVP_PKEY_CTX *set_keygen_ctx(BIO * err, const char *gstr, int *pkey_type, 143 long *pkeylen, char **palgnam); 144 static CONF *req_conf = NULL; 145 static int batch = 0; 146 147 int 148 req_main(int argc, char **argv) 149 { 150 unsigned long nmflag = 0, reqflag = 0; 151 int ex = 1, x509 = 0, days = 30; 152 X509 *x509ss = NULL; 153 X509_REQ *req = NULL; 154 EVP_PKEY_CTX *genctx = NULL; 155 const char *keyalg = NULL; 156 char *keyalgstr = NULL; 157 STACK_OF(OPENSSL_STRING) * pkeyopts = NULL, *sigopts = NULL; 158 EVP_PKEY *pkey = NULL; 159 int i = 0, badops = 0, newreq = 0, verbose = 0, pkey_type = -1; 160 long newkey = -1; 161 BIO *in = NULL, *out = NULL; 162 int informat, outformat, verify = 0, noout = 0, text = 0, keyform = FORMAT_PEM; 163 int nodes = 0, kludge = 0, newhdr = 0, subject = 0, pubkey = 0; 164 char *infile, *outfile, *prog, *keyfile = NULL, *template = NULL, 165 *keyout = NULL; 166 char *extensions = NULL; 167 char *req_exts = NULL; 168 const EVP_CIPHER *cipher = NULL; 169 ASN1_INTEGER *serial = NULL; 170 int modulus = 0; 171 char *passargin = NULL, *passargout = NULL; 172 char *passin = NULL, *passout = NULL; 173 char *p; 174 char *subj = NULL; 175 int multirdn = 0; 176 const EVP_MD *md_alg = NULL, *digest = NULL; 177 unsigned long chtype = MBSTRING_ASC; 178 179 if (single_execution) { 180 if (pledge("stdio rpath wpath cpath tty", NULL) == -1) { 181 perror("pledge"); 182 exit(1); 183 } 184 } 185 186 req_conf = NULL; 187 cipher = EVP_aes_256_cbc(); 188 digest = EVP_sha256(); 189 190 infile = NULL; 191 outfile = NULL; 192 informat = FORMAT_PEM; 193 outformat = FORMAT_PEM; 194 195 prog = argv[0]; 196 argc--; 197 argv++; 198 while (argc >= 1) { 199 if (strcmp(*argv, "-inform") == 0) { 200 if (--argc < 1) 201 goto bad; 202 informat = str2fmt(*(++argv)); 203 } else if (strcmp(*argv, "-outform") == 0) { 204 if (--argc < 1) 205 goto bad; 206 outformat = str2fmt(*(++argv)); 207 } 208 else if (strcmp(*argv, "-key") == 0) { 209 if (--argc < 1) 210 goto bad; 211 keyfile = *(++argv); 212 } else if (strcmp(*argv, "-pubkey") == 0) { 213 pubkey = 1; 214 } else if (strcmp(*argv, "-new") == 0) { 215 newreq = 1; 216 } else if (strcmp(*argv, "-config") == 0) { 217 if (--argc < 1) 218 goto bad; 219 template = *(++argv); 220 } else if (strcmp(*argv, "-keyform") == 0) { 221 if (--argc < 1) 222 goto bad; 223 keyform = str2fmt(*(++argv)); 224 } else if (strcmp(*argv, "-in") == 0) { 225 if (--argc < 1) 226 goto bad; 227 infile = *(++argv); 228 } else if (strcmp(*argv, "-out") == 0) { 229 if (--argc < 1) 230 goto bad; 231 outfile = *(++argv); 232 } else if (strcmp(*argv, "-keyout") == 0) { 233 if (--argc < 1) 234 goto bad; 235 keyout = *(++argv); 236 } else if (strcmp(*argv, "-passin") == 0) { 237 if (--argc < 1) 238 goto bad; 239 passargin = *(++argv); 240 } else if (strcmp(*argv, "-passout") == 0) { 241 if (--argc < 1) 242 goto bad; 243 passargout = *(++argv); 244 } else if (strcmp(*argv, "-newkey") == 0) { 245 if (--argc < 1) 246 goto bad; 247 keyalg = *(++argv); 248 newreq = 1; 249 } else if (strcmp(*argv, "-pkeyopt") == 0) { 250 if (--argc < 1) 251 goto bad; 252 if (!pkeyopts) 253 pkeyopts = sk_OPENSSL_STRING_new_null(); 254 if (!pkeyopts || !sk_OPENSSL_STRING_push(pkeyopts, *(++argv))) 255 goto bad; 256 } else if (strcmp(*argv, "-sigopt") == 0) { 257 if (--argc < 1) 258 goto bad; 259 if (!sigopts) 260 sigopts = sk_OPENSSL_STRING_new_null(); 261 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, *(++argv))) 262 goto bad; 263 } else if (strcmp(*argv, "-batch") == 0) 264 batch = 1; 265 else if (strcmp(*argv, "-newhdr") == 0) 266 newhdr = 1; 267 else if (strcmp(*argv, "-modulus") == 0) 268 modulus = 1; 269 else if (strcmp(*argv, "-verify") == 0) 270 verify = 1; 271 else if (strcmp(*argv, "-nodes") == 0) 272 nodes = 1; 273 else if (strcmp(*argv, "-noout") == 0) 274 noout = 1; 275 else if (strcmp(*argv, "-verbose") == 0) 276 verbose = 1; 277 else if (strcmp(*argv, "-utf8") == 0) 278 chtype = MBSTRING_UTF8; 279 else if (strcmp(*argv, "-nameopt") == 0) { 280 if (--argc < 1) 281 goto bad; 282 if (!set_name_ex(&nmflag, *(++argv))) 283 goto bad; 284 } else if (strcmp(*argv, "-reqopt") == 0) { 285 if (--argc < 1) 286 goto bad; 287 if (!set_cert_ex(&reqflag, *(++argv))) 288 goto bad; 289 } else if (strcmp(*argv, "-subject") == 0) 290 subject = 1; 291 else if (strcmp(*argv, "-text") == 0) 292 text = 1; 293 else if (strcmp(*argv, "-x509") == 0) 294 x509 = 1; 295 else if (strcmp(*argv, "-asn1-kludge") == 0) 296 kludge = 1; 297 else if (strcmp(*argv, "-no-asn1-kludge") == 0) 298 kludge = 0; 299 else if (strcmp(*argv, "-subj") == 0) { 300 if (--argc < 1) 301 goto bad; 302 subj = *(++argv); 303 } else if (strcmp(*argv, "-multivalue-rdn") == 0) 304 multirdn = 1; 305 else if (strcmp(*argv, "-days") == 0) { 306 const char *errstr; 307 308 if (--argc < 1) 309 goto bad; 310 days = strtonum(*(++argv), 1, INT_MAX, &errstr); 311 if (errstr) { 312 BIO_printf(bio_err, "bad -days %s, using 0: %s\n", 313 *argv, errstr); 314 days = 30; 315 } 316 } else if (strcmp(*argv, "-set_serial") == 0) { 317 if (--argc < 1) 318 goto bad; 319 serial = s2i_ASN1_INTEGER(NULL, *(++argv)); 320 if (!serial) 321 goto bad; 322 } else if (strcmp(*argv, "-extensions") == 0) { 323 if (--argc < 1) 324 goto bad; 325 extensions = *(++argv); 326 } else if (strcmp(*argv, "-reqexts") == 0) { 327 if (--argc < 1) 328 goto bad; 329 req_exts = *(++argv); 330 } else if ((md_alg = EVP_get_digestbyname(&((*argv)[1]))) != NULL) { 331 /* ok */ 332 digest = md_alg; 333 } else { 334 BIO_printf(bio_err, "unknown option %s\n", *argv); 335 badops = 1; 336 break; 337 } 338 argc--; 339 argv++; 340 } 341 342 if (badops) { 343 bad: 344 BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog); 345 BIO_printf(bio_err, "where options are\n"); 346 BIO_printf(bio_err, " -inform arg input format - DER or PEM\n"); 347 BIO_printf(bio_err, " -outform arg output format - DER or PEM\n"); 348 BIO_printf(bio_err, " -in arg input file\n"); 349 BIO_printf(bio_err, " -out arg output file\n"); 350 BIO_printf(bio_err, " -text text form of request\n"); 351 BIO_printf(bio_err, " -pubkey output public key\n"); 352 BIO_printf(bio_err, " -noout do not output REQ\n"); 353 BIO_printf(bio_err, " -verify verify signature on REQ\n"); 354 BIO_printf(bio_err, " -modulus RSA modulus\n"); 355 BIO_printf(bio_err, " -nodes don't encrypt the output key\n"); 356 BIO_printf(bio_err, " -subject output the request's subject\n"); 357 BIO_printf(bio_err, " -passin private key password source\n"); 358 BIO_printf(bio_err, " -key file use the private key contained in file\n"); 359 BIO_printf(bio_err, " -keyform arg key file format\n"); 360 BIO_printf(bio_err, " -keyout arg file to send the key to\n"); 361 BIO_printf(bio_err, " -newkey rsa:bits generate a new RSA key of 'bits' in size\n"); 362 BIO_printf(bio_err, " -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n"); 363 BIO_printf(bio_err, " -newkey ec:file generate a new EC key, parameters taken from CA in 'file'\n"); 364 BIO_printf(bio_err, " -[digest] Digest to sign with (md5, sha1, md4)\n"); 365 BIO_printf(bio_err, " -config file request template file.\n"); 366 BIO_printf(bio_err, " -subj arg set or modify request subject\n"); 367 BIO_printf(bio_err, " -multivalue-rdn enable support for multivalued RDNs\n"); 368 BIO_printf(bio_err, " -new new request.\n"); 369 BIO_printf(bio_err, " -batch do not ask anything during request generation\n"); 370 BIO_printf(bio_err, " -x509 output a x509 structure instead of a cert. req.\n"); 371 BIO_printf(bio_err, " -days number of days a certificate generated by -x509 is valid for.\n"); 372 BIO_printf(bio_err, " -set_serial serial number to use for a certificate generated by -x509.\n"); 373 BIO_printf(bio_err, " -newhdr output \"NEW\" in the header lines\n"); 374 BIO_printf(bio_err, " -asn1-kludge Output the 'request' in a format that is wrong but some CA's\n"); 375 BIO_printf(bio_err, " have been reported as requiring\n"); 376 BIO_printf(bio_err, " -extensions .. specify certificate extension section (override value in config file)\n"); 377 BIO_printf(bio_err, " -reqexts .. specify request extension section (override value in config file)\n"); 378 BIO_printf(bio_err, " -utf8 input characters are UTF8 (default ASCII)\n"); 379 BIO_printf(bio_err, " -nameopt arg - various certificate name options\n"); 380 BIO_printf(bio_err, " -reqopt arg - various request text options\n\n"); 381 goto end; 382 } 383 384 if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { 385 BIO_printf(bio_err, "Error getting passwords\n"); 386 goto end; 387 } 388 if (template != NULL) { 389 long errline = -1; 390 391 if (verbose) 392 BIO_printf(bio_err, "Using configuration from %s\n", template); 393 req_conf = NCONF_new(NULL); 394 i = NCONF_load(req_conf, template, &errline); 395 if (i == 0) { 396 BIO_printf(bio_err, "error on line %ld of %s\n", errline, template); 397 goto end; 398 } 399 } else { 400 req_conf = config; 401 402 if (req_conf == NULL) { 403 BIO_printf(bio_err, "Unable to load config info from %s\n", default_config_file); 404 if (newreq) 405 goto end; 406 } else if (verbose) 407 BIO_printf(bio_err, "Using configuration from %s\n", 408 default_config_file); 409 } 410 411 if (req_conf != NULL) { 412 if (!load_config(bio_err, req_conf)) 413 goto end; 414 p = NCONF_get_string(req_conf, NULL, "oid_file"); 415 if (p == NULL) 416 ERR_clear_error(); 417 if (p != NULL) { 418 BIO *oid_bio; 419 420 oid_bio = BIO_new_file(p, "r"); 421 if (oid_bio == NULL) { 422 /* 423 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p); 424 ERR_print_errors(bio_err); 425 */ 426 } else { 427 OBJ_create_objects(oid_bio); 428 BIO_free(oid_bio); 429 } 430 } 431 } 432 if (!add_oid_section(bio_err, req_conf)) 433 goto end; 434 435 if (md_alg == NULL) { 436 p = NCONF_get_string(req_conf, SECTION, "default_md"); 437 if (p == NULL) 438 ERR_clear_error(); 439 if (p != NULL) { 440 if ((md_alg = EVP_get_digestbyname(p)) != NULL) 441 digest = md_alg; 442 } 443 } 444 if (!extensions) { 445 extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS); 446 if (!extensions) 447 ERR_clear_error(); 448 } 449 if (extensions) { 450 /* Check syntax of file */ 451 X509V3_CTX ctx; 452 X509V3_set_ctx_test(&ctx); 453 X509V3_set_nconf(&ctx, req_conf); 454 if (!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) { 455 BIO_printf(bio_err, 456 "Error Loading extension section %s\n", extensions); 457 goto end; 458 } 459 } 460 if (!passin) { 461 passin = NCONF_get_string(req_conf, SECTION, "input_password"); 462 if (!passin) 463 ERR_clear_error(); 464 } 465 if (!passout) { 466 passout = NCONF_get_string(req_conf, SECTION, "output_password"); 467 if (!passout) 468 ERR_clear_error(); 469 } 470 p = NCONF_get_string(req_conf, SECTION, STRING_MASK); 471 if (!p) 472 ERR_clear_error(); 473 474 if (p && !ASN1_STRING_set_default_mask_asc(p)) { 475 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p); 476 goto end; 477 } 478 if (chtype != MBSTRING_UTF8) { 479 p = NCONF_get_string(req_conf, SECTION, UTF8_IN); 480 if (!p) 481 ERR_clear_error(); 482 else if (!strcmp(p, "yes")) 483 chtype = MBSTRING_UTF8; 484 } 485 if (!req_exts) { 486 req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS); 487 if (!req_exts) 488 ERR_clear_error(); 489 } 490 if (req_exts) { 491 /* Check syntax of file */ 492 X509V3_CTX ctx; 493 X509V3_set_ctx_test(&ctx); 494 X509V3_set_nconf(&ctx, req_conf); 495 if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) { 496 BIO_printf(bio_err, 497 "Error Loading request extension section %s\n", 498 req_exts); 499 goto end; 500 } 501 } 502 in = BIO_new(BIO_s_file()); 503 out = BIO_new(BIO_s_file()); 504 if ((in == NULL) || (out == NULL)) 505 goto end; 506 507 if (keyfile != NULL) { 508 pkey = load_key(bio_err, keyfile, keyform, 0, passin, 509 "Private Key"); 510 if (!pkey) { 511 /* 512 * load_key() has already printed an appropriate 513 * message 514 */ 515 goto end; 516 } 517 } 518 if (newreq && (pkey == NULL)) { 519 if (!NCONF_get_number(req_conf, SECTION, BITS, &newkey)) { 520 newkey = DEFAULT_KEY_LENGTH; 521 } 522 if (keyalg) { 523 genctx = set_keygen_ctx(bio_err, keyalg, &pkey_type, &newkey, 524 &keyalgstr); 525 if (!genctx) 526 goto end; 527 } 528 if (newkey < MIN_KEY_LENGTH && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) { 529 BIO_printf(bio_err, "private key length is too short,\n"); 530 BIO_printf(bio_err, "it needs to be at least %d bits, not %ld\n", MIN_KEY_LENGTH, newkey); 531 goto end; 532 } 533 if (!genctx) { 534 genctx = set_keygen_ctx(bio_err, NULL, &pkey_type, &newkey, 535 &keyalgstr); 536 if (!genctx) 537 goto end; 538 } 539 if (pkeyopts) { 540 char *genopt; 541 for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) { 542 genopt = sk_OPENSSL_STRING_value(pkeyopts, i); 543 if (pkey_ctrl_string(genctx, genopt) <= 0) { 544 BIO_printf(bio_err, 545 "parameter error \"%s\"\n", 546 genopt); 547 ERR_print_errors(bio_err); 548 goto end; 549 } 550 } 551 } 552 BIO_printf(bio_err, "Generating a %ld bit %s private key\n", 553 newkey, keyalgstr); 554 555 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb); 556 EVP_PKEY_CTX_set_app_data(genctx, bio_err); 557 558 if (EVP_PKEY_keygen(genctx, &pkey) <= 0) { 559 BIO_puts(bio_err, "Error Generating Key\n"); 560 goto end; 561 } 562 EVP_PKEY_CTX_free(genctx); 563 genctx = NULL; 564 565 if (keyout == NULL) { 566 keyout = NCONF_get_string(req_conf, SECTION, KEYFILE); 567 if (keyout == NULL) 568 ERR_clear_error(); 569 } 570 if (keyout == NULL) { 571 BIO_printf(bio_err, "writing new private key to stdout\n"); 572 BIO_set_fp(out, stdout, BIO_NOCLOSE); 573 } else { 574 BIO_printf(bio_err, "writing new private key to '%s'\n", keyout); 575 if (BIO_write_filename(out, keyout) <= 0) { 576 perror(keyout); 577 goto end; 578 } 579 } 580 581 p = NCONF_get_string(req_conf, SECTION, "encrypt_rsa_key"); 582 if (p == NULL) { 583 ERR_clear_error(); 584 p = NCONF_get_string(req_conf, SECTION, "encrypt_key"); 585 if (p == NULL) 586 ERR_clear_error(); 587 } 588 if ((p != NULL) && (strcmp(p, "no") == 0)) 589 cipher = NULL; 590 if (nodes) 591 cipher = NULL; 592 593 i = 0; 594 loop: 595 if (!PEM_write_bio_PrivateKey(out, pkey, cipher, 596 NULL, 0, NULL, passout)) { 597 if ((ERR_GET_REASON(ERR_peek_error()) == 598 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) { 599 ERR_clear_error(); 600 i++; 601 goto loop; 602 } 603 goto end; 604 } 605 BIO_printf(bio_err, "-----\n"); 606 } 607 if (!newreq) { 608 /* 609 * Since we are using a pre-existing certificate request, the 610 * kludge 'format' info should not be changed. 611 */ 612 kludge = -1; 613 if (infile == NULL) 614 BIO_set_fp(in, stdin, BIO_NOCLOSE); 615 else { 616 if (BIO_read_filename(in, infile) <= 0) { 617 perror(infile); 618 goto end; 619 } 620 } 621 622 if (informat == FORMAT_ASN1) 623 req = d2i_X509_REQ_bio(in, NULL); 624 else if (informat == FORMAT_PEM) 625 req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL); 626 else { 627 BIO_printf(bio_err, "bad input format specified for X509 request\n"); 628 goto end; 629 } 630 if (req == NULL) { 631 BIO_printf(bio_err, "unable to load X509 request\n"); 632 goto end; 633 } 634 } 635 if (newreq || x509) { 636 if (pkey == NULL) { 637 BIO_printf(bio_err, "you need to specify a private key\n"); 638 goto end; 639 } 640 if (req == NULL) { 641 req = X509_REQ_new(); 642 if (req == NULL) { 643 goto end; 644 } 645 i = make_REQ(req, pkey, subj, multirdn, !x509, chtype); 646 subj = NULL; /* done processing '-subj' option */ 647 if ((kludge > 0) && !sk_X509_ATTRIBUTE_num(req->req_info->attributes)) { 648 sk_X509_ATTRIBUTE_free(req->req_info->attributes); 649 req->req_info->attributes = NULL; 650 } 651 if (!i) { 652 BIO_printf(bio_err, "problems making Certificate Request\n"); 653 goto end; 654 } 655 } 656 if (x509) { 657 EVP_PKEY *tmppkey; 658 X509V3_CTX ext_ctx; 659 if ((x509ss = X509_new()) == NULL) 660 goto end; 661 662 /* Set version to V3 */ 663 if (extensions && !X509_set_version(x509ss, 2)) 664 goto end; 665 if (serial) { 666 if (!X509_set_serialNumber(x509ss, serial)) 667 goto end; 668 } else { 669 if (!rand_serial(NULL, 670 X509_get_serialNumber(x509ss))) 671 goto end; 672 } 673 674 if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req))) 675 goto end; 676 if (!X509_gmtime_adj(X509_get_notBefore(x509ss), 0)) 677 goto end; 678 if (!X509_time_adj_ex(X509_get_notAfter(x509ss), days, 0, NULL)) 679 goto end; 680 if (!X509_set_subject_name(x509ss, X509_REQ_get_subject_name(req))) 681 goto end; 682 tmppkey = X509_REQ_get_pubkey(req); 683 if (!tmppkey || !X509_set_pubkey(x509ss, tmppkey)) 684 goto end; 685 EVP_PKEY_free(tmppkey); 686 687 /* Set up V3 context struct */ 688 689 X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0); 690 X509V3_set_nconf(&ext_ctx, req_conf); 691 692 /* Add extensions */ 693 if (extensions && !X509V3_EXT_add_nconf(req_conf, 694 &ext_ctx, extensions, x509ss)) { 695 BIO_printf(bio_err, 696 "Error Loading extension section %s\n", 697 extensions); 698 goto end; 699 } 700 i = do_X509_sign(bio_err, x509ss, pkey, digest, sigopts); 701 if (!i) { 702 ERR_print_errors(bio_err); 703 goto end; 704 } 705 } else { 706 X509V3_CTX ext_ctx; 707 708 /* Set up V3 context struct */ 709 710 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0); 711 X509V3_set_nconf(&ext_ctx, req_conf); 712 713 /* Add extensions */ 714 if (req_exts && !X509V3_EXT_REQ_add_nconf(req_conf, 715 &ext_ctx, req_exts, req)) { 716 BIO_printf(bio_err, 717 "Error Loading extension section %s\n", 718 req_exts); 719 goto end; 720 } 721 i = do_X509_REQ_sign(bio_err, req, pkey, digest, sigopts); 722 if (!i) { 723 ERR_print_errors(bio_err); 724 goto end; 725 } 726 } 727 } 728 if (subj && x509) { 729 BIO_printf(bio_err, "Cannot modifiy certificate subject\n"); 730 goto end; 731 } 732 if (subj && !x509) { 733 if (verbose) { 734 BIO_printf(bio_err, "Modifying Request's Subject\n"); 735 print_name(bio_err, "old subject=", X509_REQ_get_subject_name(req), nmflag); 736 } 737 if (build_subject(req, subj, chtype, multirdn) == 0) { 738 BIO_printf(bio_err, "ERROR: cannot modify subject\n"); 739 ex = 1; 740 goto end; 741 } 742 req->req_info->enc.modified = 1; 743 744 if (verbose) { 745 print_name(bio_err, "new subject=", X509_REQ_get_subject_name(req), nmflag); 746 } 747 } 748 if (verify && !x509) { 749 int tmp = 0; 750 751 if (pkey == NULL) { 752 pkey = X509_REQ_get_pubkey(req); 753 tmp = 1; 754 if (pkey == NULL) 755 goto end; 756 } 757 i = X509_REQ_verify(req, pkey); 758 if (tmp) { 759 EVP_PKEY_free(pkey); 760 pkey = NULL; 761 } 762 if (i < 0) { 763 goto end; 764 } else if (i == 0) { 765 BIO_printf(bio_err, "verify failure\n"); 766 ERR_print_errors(bio_err); 767 } else /* if (i > 0) */ 768 BIO_printf(bio_err, "verify OK\n"); 769 } 770 if (noout && !text && !modulus && !subject && !pubkey) { 771 ex = 0; 772 goto end; 773 } 774 if (outfile == NULL) { 775 BIO_set_fp(out, stdout, BIO_NOCLOSE); 776 } else { 777 if ((keyout != NULL) && (strcmp(outfile, keyout) == 0)) 778 i = (int) BIO_append_filename(out, outfile); 779 else 780 i = (int) BIO_write_filename(out, outfile); 781 if (!i) { 782 perror(outfile); 783 goto end; 784 } 785 } 786 787 if (pubkey) { 788 EVP_PKEY *tpubkey; 789 tpubkey = X509_REQ_get_pubkey(req); 790 if (tpubkey == NULL) { 791 BIO_printf(bio_err, "Error getting public key\n"); 792 ERR_print_errors(bio_err); 793 goto end; 794 } 795 PEM_write_bio_PUBKEY(out, tpubkey); 796 EVP_PKEY_free(tpubkey); 797 } 798 if (text) { 799 if (x509) 800 X509_print_ex(out, x509ss, nmflag, reqflag); 801 else 802 X509_REQ_print_ex(out, req, nmflag, reqflag); 803 } 804 if (subject) { 805 if (x509) 806 print_name(out, "subject=", X509_get_subject_name(x509ss), nmflag); 807 else 808 print_name(out, "subject=", X509_REQ_get_subject_name(req), nmflag); 809 } 810 if (modulus) { 811 EVP_PKEY *tpubkey; 812 813 if (x509) 814 tpubkey = X509_get_pubkey(x509ss); 815 else 816 tpubkey = X509_REQ_get_pubkey(req); 817 if (tpubkey == NULL) { 818 fprintf(stdout, "Modulus=unavailable\n"); 819 goto end; 820 } 821 fprintf(stdout, "Modulus="); 822 if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA) 823 BN_print(out, tpubkey->pkey.rsa->n); 824 else 825 fprintf(stdout, "Wrong Algorithm type"); 826 EVP_PKEY_free(tpubkey); 827 fprintf(stdout, "\n"); 828 } 829 if (!noout && !x509) { 830 if (outformat == FORMAT_ASN1) 831 i = i2d_X509_REQ_bio(out, req); 832 else if (outformat == FORMAT_PEM) { 833 if (newhdr) 834 i = PEM_write_bio_X509_REQ_NEW(out, req); 835 else 836 i = PEM_write_bio_X509_REQ(out, req); 837 } else { 838 BIO_printf(bio_err, "bad output format specified for outfile\n"); 839 goto end; 840 } 841 if (!i) { 842 BIO_printf(bio_err, "unable to write X509 request\n"); 843 goto end; 844 } 845 } 846 if (!noout && x509 && (x509ss != NULL)) { 847 if (outformat == FORMAT_ASN1) 848 i = i2d_X509_bio(out, x509ss); 849 else if (outformat == FORMAT_PEM) 850 i = PEM_write_bio_X509(out, x509ss); 851 else { 852 BIO_printf(bio_err, "bad output format specified for outfile\n"); 853 goto end; 854 } 855 if (!i) { 856 BIO_printf(bio_err, "unable to write X509 certificate\n"); 857 goto end; 858 } 859 } 860 ex = 0; 861 end: 862 if (ex) { 863 ERR_print_errors(bio_err); 864 } 865 if ((req_conf != NULL) && (req_conf != config)) 866 NCONF_free(req_conf); 867 BIO_free(in); 868 BIO_free_all(out); 869 EVP_PKEY_free(pkey); 870 if (genctx) 871 EVP_PKEY_CTX_free(genctx); 872 if (pkeyopts) 873 sk_OPENSSL_STRING_free(pkeyopts); 874 if (sigopts) 875 sk_OPENSSL_STRING_free(sigopts); 876 free(keyalgstr); 877 X509_REQ_free(req); 878 X509_free(x509ss); 879 ASN1_INTEGER_free(serial); 880 if (passargin && passin) 881 free(passin); 882 if (passargout && passout) 883 free(passout); 884 OBJ_cleanup(); 885 886 return (ex); 887 } 888 889 static int 890 make_REQ(X509_REQ * req, EVP_PKEY * pkey, char *subj, int multirdn, 891 int attribs, unsigned long chtype) 892 { 893 int ret = 0, i; 894 char no_prompt = 0; 895 STACK_OF(CONF_VALUE) * dn_sk, *attr_sk = NULL; 896 char *tmp, *dn_sect, *attr_sect; 897 898 tmp = NCONF_get_string(req_conf, SECTION, PROMPT); 899 if (tmp == NULL) 900 ERR_clear_error(); 901 if ((tmp != NULL) && !strcmp(tmp, "no")) 902 no_prompt = 1; 903 904 dn_sect = NCONF_get_string(req_conf, SECTION, DISTINGUISHED_NAME); 905 if (dn_sect == NULL) { 906 BIO_printf(bio_err, "unable to find '%s' in config\n", 907 DISTINGUISHED_NAME); 908 goto err; 909 } 910 dn_sk = NCONF_get_section(req_conf, dn_sect); 911 if (dn_sk == NULL) { 912 BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect); 913 goto err; 914 } 915 attr_sect = NCONF_get_string(req_conf, SECTION, ATTRIBUTES); 916 if (attr_sect == NULL) { 917 ERR_clear_error(); 918 attr_sk = NULL; 919 } else { 920 attr_sk = NCONF_get_section(req_conf, attr_sect); 921 if (attr_sk == NULL) { 922 BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect); 923 goto err; 924 } 925 } 926 927 /* setup version number */ 928 if (!X509_REQ_set_version(req, 0L)) 929 goto err; /* version 1 */ 930 931 if (no_prompt) 932 i = auto_info(req, dn_sk, attr_sk, attribs, chtype); 933 else { 934 if (subj) 935 i = build_subject(req, subj, chtype, multirdn); 936 else 937 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs, chtype); 938 } 939 if (!i) 940 goto err; 941 942 if (!X509_REQ_set_pubkey(req, pkey)) 943 goto err; 944 945 ret = 1; 946 err: 947 return (ret); 948 } 949 950 /* 951 * subject is expected to be in the format /type0=value0/type1=value1/type2=... 952 * where characters may be escaped by \ 953 */ 954 static int 955 build_subject(X509_REQ * req, char *subject, unsigned long chtype, int multirdn) 956 { 957 X509_NAME *n; 958 959 if (!(n = parse_name(subject, chtype, multirdn))) 960 return 0; 961 962 if (!X509_REQ_set_subject_name(req, n)) { 963 X509_NAME_free(n); 964 return 0; 965 } 966 X509_NAME_free(n); 967 return 1; 968 } 969 970 971 static int 972 prompt_info(X509_REQ * req, 973 STACK_OF(CONF_VALUE) * dn_sk, char *dn_sect, 974 STACK_OF(CONF_VALUE) * attr_sk, char *attr_sect, int attribs, 975 unsigned long chtype) 976 { 977 int i; 978 char *p, *q; 979 char buf[100]; 980 int nid, mval; 981 long n_min, n_max; 982 char *type, *value; 983 const char *def; 984 CONF_VALUE *v; 985 X509_NAME *subj; 986 subj = X509_REQ_get_subject_name(req); 987 988 if (!batch) { 989 BIO_printf(bio_err, "You are about to be asked to enter information that will be incorporated\n"); 990 BIO_printf(bio_err, "into your certificate request.\n"); 991 BIO_printf(bio_err, "What you are about to enter is what is called a Distinguished Name or a DN.\n"); 992 BIO_printf(bio_err, "There are quite a few fields but you can leave some blank\n"); 993 BIO_printf(bio_err, "For some fields there will be a default value,\n"); 994 BIO_printf(bio_err, "If you enter '.', the field will be left blank.\n"); 995 BIO_printf(bio_err, "-----\n"); 996 } 997 if (sk_CONF_VALUE_num(dn_sk)) { 998 i = -1; 999 start: for (;;) { 1000 int ret; 1001 i++; 1002 if (sk_CONF_VALUE_num(dn_sk) <= i) 1003 break; 1004 1005 v = sk_CONF_VALUE_value(dn_sk, i); 1006 p = q = NULL; 1007 type = v->name; 1008 if (!check_end(type, "_min") || !check_end(type, "_max") || 1009 !check_end(type, "_default") || 1010 !check_end(type, "_value")) 1011 continue; 1012 /* 1013 * Skip past any leading X. X: X, etc to allow for 1014 * multiple instances 1015 */ 1016 for (p = v->name; *p; p++) 1017 if ((*p == ':') || (*p == ',') || 1018 (*p == '.')) { 1019 p++; 1020 if (*p) 1021 type = p; 1022 break; 1023 } 1024 if (*type == '+') { 1025 mval = -1; 1026 type++; 1027 } else 1028 mval = 0; 1029 /* If OBJ not recognised ignore it */ 1030 if ((nid = OBJ_txt2nid(type)) == NID_undef) 1031 goto start; 1032 ret = snprintf(buf, sizeof buf, "%s_default", v->name); 1033 if (ret == -1 || ret >= sizeof(buf)) { 1034 BIO_printf(bio_err, "Name '%s' too long for default\n", 1035 v->name); 1036 return 0; 1037 } 1038 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) { 1039 ERR_clear_error(); 1040 def = ""; 1041 } 1042 ret = snprintf(buf, sizeof buf, "%s_value", v->name); 1043 if (ret == -1 || ret >= sizeof(buf)) { 1044 BIO_printf(bio_err, "Name '%s' too long for value\n", 1045 v->name); 1046 return 0; 1047 } 1048 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) { 1049 ERR_clear_error(); 1050 value = NULL; 1051 } 1052 ret = snprintf(buf, sizeof buf, "%s_min", v->name); 1053 if (ret == -1 || ret >= sizeof(buf)) { 1054 BIO_printf(bio_err, "Name '%s' too long for min\n", 1055 v->name); 1056 return 0; 1057 } 1058 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) { 1059 ERR_clear_error(); 1060 n_min = -1; 1061 } 1062 ret = snprintf(buf, sizeof buf, "%s_max", v->name); 1063 if (ret == -1 || ret >= sizeof(buf)) { 1064 BIO_printf(bio_err, "Name '%s' too long for max\n", 1065 v->name); 1066 return 0; 1067 } 1068 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) { 1069 ERR_clear_error(); 1070 n_max = -1; 1071 } 1072 if (!add_DN_object(subj, v->value, def, value, nid, 1073 n_min, n_max, chtype, mval)) 1074 return 0; 1075 } 1076 if (X509_NAME_entry_count(subj) == 0) { 1077 BIO_printf(bio_err, "error, no objects specified in config file\n"); 1078 return 0; 1079 } 1080 if (attribs) { 1081 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0) && 1082 (!batch)) { 1083 BIO_printf(bio_err, 1084 "\nPlease enter the following 'extra' attributes\n"); 1085 BIO_printf(bio_err, 1086 "to be sent with your certificate request\n"); 1087 } 1088 i = -1; 1089 start2: for (;;) { 1090 int ret; 1091 i++; 1092 if ((attr_sk == NULL) || 1093 (sk_CONF_VALUE_num(attr_sk) <= i)) 1094 break; 1095 1096 v = sk_CONF_VALUE_value(attr_sk, i); 1097 type = v->name; 1098 if ((nid = OBJ_txt2nid(type)) == NID_undef) 1099 goto start2; 1100 ret = snprintf(buf, sizeof buf, "%s_default", type); 1101 if (ret == -1 || ret >= sizeof(buf)) { 1102 BIO_printf(bio_err, "Name '%s' too long for default\n", 1103 v->name); 1104 return 0; 1105 } 1106 if ((def = NCONF_get_string(req_conf, attr_sect, buf)) 1107 == NULL) { 1108 ERR_clear_error(); 1109 def = ""; 1110 } 1111 ret = snprintf(buf, sizeof buf, "%s_value", type); 1112 if (ret == -1 || ret >= sizeof(buf)) { 1113 BIO_printf(bio_err, "Name '%s' too long for value\n", 1114 v->name); 1115 return 0; 1116 } 1117 if ((value = NCONF_get_string(req_conf, attr_sect, buf)) 1118 == NULL) { 1119 ERR_clear_error(); 1120 value = NULL; 1121 } 1122 ret = snprintf(buf, sizeof buf, "%s_min", type); 1123 if (ret == -1 || ret >= sizeof(buf)) { 1124 BIO_printf(bio_err, "Name '%s' too long for min\n", 1125 v->name); 1126 return 0; 1127 } 1128 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) { 1129 ERR_clear_error(); 1130 n_min = -1; 1131 } 1132 ret = snprintf(buf, sizeof buf, "%s_max", type); 1133 if (ret == -1 || ret >= sizeof(buf)) { 1134 BIO_printf(bio_err, "Name '%s' too long for max\n", 1135 v->name); 1136 return 0; 1137 } 1138 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) { 1139 ERR_clear_error(); 1140 n_max = -1; 1141 } 1142 if (!add_attribute_object(req, 1143 v->value, def, value, nid, n_min, n_max, chtype)) 1144 return 0; 1145 } 1146 } 1147 } else { 1148 BIO_printf(bio_err, "No template, please set one up.\n"); 1149 return 0; 1150 } 1151 1152 return 1; 1153 1154 } 1155 1156 static int 1157 auto_info(X509_REQ * req, STACK_OF(CONF_VALUE) * dn_sk, 1158 STACK_OF(CONF_VALUE) * attr_sk, int attribs, unsigned long chtype) 1159 { 1160 int i; 1161 char *p, *q; 1162 char *type; 1163 CONF_VALUE *v; 1164 X509_NAME *subj; 1165 1166 subj = X509_REQ_get_subject_name(req); 1167 1168 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) { 1169 int mval; 1170 v = sk_CONF_VALUE_value(dn_sk, i); 1171 p = q = NULL; 1172 type = v->name; 1173 /* 1174 * Skip past any leading X. X: X, etc to allow for multiple 1175 * instances 1176 */ 1177 for (p = v->name; *p; p++) 1178 if ((*p == ':') || (*p == ',') || (*p == '.')) { 1179 p++; 1180 if (*p) 1181 type = p; 1182 break; 1183 } 1184 if (*p == '+') { 1185 p++; 1186 mval = -1; 1187 } else 1188 mval = 0; 1189 if (!X509_NAME_add_entry_by_txt(subj, type, chtype, 1190 (unsigned char *) v->value, -1, -1, mval)) 1191 return 0; 1192 1193 } 1194 1195 if (!X509_NAME_entry_count(subj)) { 1196 BIO_printf(bio_err, "error, no objects specified in config file\n"); 1197 return 0; 1198 } 1199 if (attribs) { 1200 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) { 1201 v = sk_CONF_VALUE_value(attr_sk, i); 1202 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype, 1203 (unsigned char *) v->value, -1)) 1204 return 0; 1205 } 1206 } 1207 return 1; 1208 } 1209 1210 1211 static int 1212 add_DN_object(X509_NAME * n, char *text, const char *def, char *value, 1213 int nid, int n_min, int n_max, unsigned long chtype, int mval) 1214 { 1215 int i, ret = 0; 1216 char buf[1024]; 1217 start: 1218 if (!batch) 1219 BIO_printf(bio_err, "%s [%s]:", text, def); 1220 (void) BIO_flush(bio_err); 1221 if (value != NULL) { 1222 strlcpy(buf, value, sizeof buf); 1223 strlcat(buf, "\n", sizeof buf); 1224 BIO_printf(bio_err, "%s\n", value); 1225 } else { 1226 buf[0] = '\0'; 1227 if (!batch) { 1228 if (!fgets(buf, sizeof buf, stdin)) 1229 return 0; 1230 } else { 1231 buf[0] = '\n'; 1232 buf[1] = '\0'; 1233 } 1234 } 1235 1236 if (buf[0] == '\0') 1237 return (0); 1238 else if (buf[0] == '\n') { 1239 if ((def == NULL) || (def[0] == '\0')) 1240 return (1); 1241 strlcpy(buf, def, sizeof buf); 1242 strlcat(buf, "\n", sizeof buf); 1243 } else if ((buf[0] == '.') && (buf[1] == '\n')) 1244 return (1); 1245 1246 i = strlen(buf); 1247 if (buf[i - 1] != '\n') { 1248 BIO_printf(bio_err, "weird input :-(\n"); 1249 return (0); 1250 } 1251 buf[--i] = '\0'; 1252 if (!req_check_len(i, n_min, n_max)) 1253 goto start; 1254 if (!X509_NAME_add_entry_by_NID(n, nid, chtype, 1255 (unsigned char *) buf, -1, -1, mval)) 1256 goto err; 1257 ret = 1; 1258 err: 1259 return (ret); 1260 } 1261 1262 static int 1263 add_attribute_object(X509_REQ * req, char *text, const char *def, 1264 char *value, int nid, int n_min, 1265 int n_max, unsigned long chtype) 1266 { 1267 int i; 1268 static char buf[1024]; 1269 1270 start: 1271 if (!batch) 1272 BIO_printf(bio_err, "%s [%s]:", text, def); 1273 (void) BIO_flush(bio_err); 1274 if (value != NULL) { 1275 strlcpy(buf, value, sizeof buf); 1276 strlcat(buf, "\n", sizeof buf); 1277 BIO_printf(bio_err, "%s\n", value); 1278 } else { 1279 buf[0] = '\0'; 1280 if (!batch) { 1281 if (!fgets(buf, sizeof buf, stdin)) 1282 return 0; 1283 } else { 1284 buf[0] = '\n'; 1285 buf[1] = '\0'; 1286 } 1287 } 1288 1289 if (buf[0] == '\0') 1290 return (0); 1291 else if (buf[0] == '\n') { 1292 if ((def == NULL) || (def[0] == '\0')) 1293 return (1); 1294 strlcpy(buf, def, sizeof buf); 1295 strlcat(buf, "\n", sizeof buf); 1296 } else if ((buf[0] == '.') && (buf[1] == '\n')) 1297 return (1); 1298 1299 i = strlen(buf); 1300 if (buf[i - 1] != '\n') { 1301 BIO_printf(bio_err, "weird input :-(\n"); 1302 return (0); 1303 } 1304 buf[--i] = '\0'; 1305 if (!req_check_len(i, n_min, n_max)) 1306 goto start; 1307 1308 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype, 1309 (unsigned char *) buf, -1)) { 1310 BIO_printf(bio_err, "Error adding attribute\n"); 1311 ERR_print_errors(bio_err); 1312 goto err; 1313 } 1314 return (1); 1315 err: 1316 return (0); 1317 } 1318 1319 static int 1320 req_check_len(int len, int n_min, int n_max) 1321 { 1322 if ((n_min > 0) && (len < n_min)) { 1323 BIO_printf(bio_err, "string is too short, it needs to be at least %d bytes long\n", n_min); 1324 return (0); 1325 } 1326 if ((n_max >= 0) && (len > n_max)) { 1327 BIO_printf(bio_err, "string is too long, it needs to be less than %d bytes long\n", n_max); 1328 return (0); 1329 } 1330 return (1); 1331 } 1332 1333 /* Check if the end of a string matches 'end' */ 1334 static int 1335 check_end(const char *str, const char *end) 1336 { 1337 int elen, slen; 1338 const char *tmp; 1339 elen = strlen(end); 1340 slen = strlen(str); 1341 if (elen > slen) 1342 return 1; 1343 tmp = str + slen - elen; 1344 return strcmp(tmp, end); 1345 } 1346 1347 static EVP_PKEY_CTX * 1348 set_keygen_ctx(BIO * err, const char *gstr, int *pkey_type, 1349 long *pkeylen, char **palgnam) 1350 { 1351 EVP_PKEY_CTX *gctx = NULL; 1352 EVP_PKEY *param = NULL; 1353 long keylen = -1; 1354 BIO *pbio = NULL; 1355 const char *paramfile = NULL; 1356 const char *errstr; 1357 1358 if (gstr == NULL) { 1359 *pkey_type = EVP_PKEY_RSA; 1360 keylen = *pkeylen; 1361 } else if (gstr[0] >= '0' && gstr[0] <= '9') { 1362 *pkey_type = EVP_PKEY_RSA; 1363 keylen = strtonum(gstr, 0, LONG_MAX, &errstr); 1364 if (errstr) { 1365 BIO_printf(err, "bad algorithm %s: %s\n", gstr, errstr); 1366 return NULL; 1367 } 1368 *pkeylen = keylen; 1369 } else if (!strncmp(gstr, "param:", 6)) 1370 paramfile = gstr + 6; 1371 else { 1372 const char *p = strchr(gstr, ':'); 1373 int len; 1374 const EVP_PKEY_ASN1_METHOD *ameth; 1375 1376 if (p) 1377 len = p - gstr; 1378 else 1379 len = strlen(gstr); 1380 1381 ameth = EVP_PKEY_asn1_find_str(NULL, gstr, len); 1382 1383 if (!ameth) { 1384 BIO_printf(err, "Unknown algorithm %.*s\n", len, gstr); 1385 return NULL; 1386 } 1387 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL, 1388 ameth); 1389 if (*pkey_type == EVP_PKEY_RSA) { 1390 if (p) { 1391 keylen = strtonum(p + 1, 0, LONG_MAX, &errstr); 1392 if (errstr) { 1393 BIO_printf(err, "bad algorithm %s: %s\n", 1394 p + 1, errstr); 1395 return NULL; 1396 } 1397 *pkeylen = keylen; 1398 } else 1399 keylen = *pkeylen; 1400 } else if (p) 1401 paramfile = p + 1; 1402 } 1403 1404 if (paramfile) { 1405 pbio = BIO_new_file(paramfile, "r"); 1406 if (!pbio) { 1407 BIO_printf(err, "Can't open parameter file %s\n", 1408 paramfile); 1409 return NULL; 1410 } 1411 param = PEM_read_bio_Parameters(pbio, NULL); 1412 1413 if (!param) { 1414 X509 *x; 1415 (void) BIO_reset(pbio); 1416 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL); 1417 if (x) { 1418 param = X509_get_pubkey(x); 1419 X509_free(x); 1420 } 1421 } 1422 BIO_free(pbio); 1423 1424 if (!param) { 1425 BIO_printf(err, "Error reading parameter file %s\n", 1426 paramfile); 1427 return NULL; 1428 } 1429 if (*pkey_type == -1) 1430 *pkey_type = EVP_PKEY_id(param); 1431 else if (*pkey_type != EVP_PKEY_base_id(param)) { 1432 BIO_printf(err, "Key Type does not match parameters\n"); 1433 EVP_PKEY_free(param); 1434 return NULL; 1435 } 1436 } 1437 if (palgnam) { 1438 const EVP_PKEY_ASN1_METHOD *ameth; 1439 const char *anam; 1440 ameth = EVP_PKEY_asn1_find(NULL, *pkey_type); 1441 if (!ameth) { 1442 BIO_puts(err, "Internal error: can't find key algorithm\n"); 1443 return NULL; 1444 } 1445 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth); 1446 *palgnam = strdup(anam); 1447 } 1448 if (param) { 1449 gctx = EVP_PKEY_CTX_new(param, NULL); 1450 *pkeylen = EVP_PKEY_bits(param); 1451 EVP_PKEY_free(param); 1452 } else 1453 gctx = EVP_PKEY_CTX_new_id(*pkey_type, NULL); 1454 1455 if (!gctx) { 1456 BIO_puts(err, "Error allocating keygen context\n"); 1457 ERR_print_errors(err); 1458 return NULL; 1459 } 1460 if (EVP_PKEY_keygen_init(gctx) <= 0) { 1461 BIO_puts(err, "Error initializing keygen context\n"); 1462 ERR_print_errors(err); 1463 return NULL; 1464 } 1465 if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) { 1466 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) { 1467 BIO_puts(err, "Error setting RSA keysize\n"); 1468 ERR_print_errors(err); 1469 EVP_PKEY_CTX_free(gctx); 1470 return NULL; 1471 } 1472 } 1473 1474 return gctx; 1475 } 1476 1477 static int 1478 genpkey_cb(EVP_PKEY_CTX * ctx) 1479 { 1480 char c = '*'; 1481 BIO *b = EVP_PKEY_CTX_get_app_data(ctx); 1482 int p; 1483 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0); 1484 if (p == 0) 1485 c = '.'; 1486 if (p == 1) 1487 c = '+'; 1488 if (p == 2) 1489 c = '*'; 1490 if (p == 3) 1491 c = '\n'; 1492 BIO_write(b, &c, 1); 1493 (void) BIO_flush(b); 1494 return 1; 1495 } 1496 1497 static int 1498 do_sign_init(BIO * err, EVP_MD_CTX * ctx, EVP_PKEY * pkey, 1499 const EVP_MD * md, STACK_OF(OPENSSL_STRING) * sigopts) 1500 { 1501 EVP_PKEY_CTX *pkctx = NULL; 1502 int i; 1503 EVP_MD_CTX_init(ctx); 1504 if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey)) 1505 return 0; 1506 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) { 1507 char *sigopt = sk_OPENSSL_STRING_value(sigopts, i); 1508 if (pkey_ctrl_string(pkctx, sigopt) <= 0) { 1509 BIO_printf(err, "parameter error \"%s\"\n", sigopt); 1510 ERR_print_errors(bio_err); 1511 return 0; 1512 } 1513 } 1514 return 1; 1515 } 1516 1517 int 1518 do_X509_sign(BIO * err, X509 * x, EVP_PKEY * pkey, const EVP_MD * md, 1519 STACK_OF(OPENSSL_STRING) * sigopts) 1520 { 1521 int rv; 1522 EVP_MD_CTX mctx; 1523 EVP_MD_CTX_init(&mctx); 1524 rv = do_sign_init(err, &mctx, pkey, md, sigopts); 1525 if (rv > 0) 1526 rv = X509_sign_ctx(x, &mctx); 1527 EVP_MD_CTX_cleanup(&mctx); 1528 return rv > 0 ? 1 : 0; 1529 } 1530 1531 1532 int 1533 do_X509_REQ_sign(BIO * err, X509_REQ * x, EVP_PKEY * pkey, const EVP_MD * md, 1534 STACK_OF(OPENSSL_STRING) * sigopts) 1535 { 1536 int rv; 1537 EVP_MD_CTX mctx; 1538 EVP_MD_CTX_init(&mctx); 1539 rv = do_sign_init(err, &mctx, pkey, md, sigopts); 1540 if (rv > 0) 1541 rv = X509_REQ_sign_ctx(x, &mctx); 1542 EVP_MD_CTX_cleanup(&mctx); 1543 return rv > 0 ? 1 : 0; 1544 } 1545 1546 1547 1548 int 1549 do_X509_CRL_sign(BIO * err, X509_CRL * x, EVP_PKEY * pkey, const EVP_MD * md, 1550 STACK_OF(OPENSSL_STRING) * sigopts) 1551 { 1552 int rv; 1553 EVP_MD_CTX mctx; 1554 EVP_MD_CTX_init(&mctx); 1555 rv = do_sign_init(err, &mctx, pkey, md, sigopts); 1556 if (rv > 0) 1557 rv = X509_CRL_sign_ctx(x, &mctx); 1558 EVP_MD_CTX_cleanup(&mctx); 1559 return rv > 0 ? 1 : 0; 1560 } 1561