1 /* 2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #include <stdio.h> 11 #include <stdlib.h> 12 #include <time.h> 13 #include <string.h> 14 #include <ctype.h> 15 #include "apps.h" 16 #include "progs.h" 17 #include <openssl/bio.h> 18 #include <openssl/evp.h> 19 #include <openssl/conf.h> 20 #include <openssl/err.h> 21 #include <openssl/asn1.h> 22 #include <openssl/x509.h> 23 #include <openssl/x509v3.h> 24 #include <openssl/objects.h> 25 #include <openssl/pem.h> 26 #include <openssl/bn.h> 27 #include <openssl/lhash.h> 28 #ifndef OPENSSL_NO_RSA 29 # include <openssl/rsa.h> 30 #endif 31 #ifndef OPENSSL_NO_DSA 32 # include <openssl/dsa.h> 33 #endif 34 35 #define SECTION "req" 36 37 #define BITS "default_bits" 38 #define KEYFILE "default_keyfile" 39 #define PROMPT "prompt" 40 #define DISTINGUISHED_NAME "distinguished_name" 41 #define ATTRIBUTES "attributes" 42 #define V3_EXTENSIONS "x509_extensions" 43 #define REQ_EXTENSIONS "req_extensions" 44 #define STRING_MASK "string_mask" 45 #define UTF8_IN "utf8" 46 47 #define DEFAULT_KEY_LENGTH 2048 48 #define MIN_KEY_LENGTH 512 49 50 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *dn, int mutlirdn, 51 int attribs, unsigned long chtype); 52 static int build_subject(X509_REQ *req, const char *subj, unsigned long chtype, 53 int multirdn); 54 static int prompt_info(X509_REQ *req, 55 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect, 56 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect, 57 int attribs, unsigned long chtype); 58 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk, 59 STACK_OF(CONF_VALUE) *attr, int attribs, 60 unsigned long chtype); 61 static int add_attribute_object(X509_REQ *req, char *text, const char *def, 62 char *value, int nid, int n_min, int n_max, 63 unsigned long chtype); 64 static int add_DN_object(X509_NAME *n, char *text, const char *def, 65 char *value, int nid, int n_min, int n_max, 66 unsigned long chtype, int mval); 67 static int genpkey_cb(EVP_PKEY_CTX *ctx); 68 static int build_data(char *text, const char *def, 69 char *value, int n_min, int n_max, 70 char *buf, const int buf_size, 71 const char *desc1, const char *desc2 72 ); 73 static int req_check_len(int len, int n_min, int n_max); 74 static int check_end(const char *str, const char *end); 75 static int join(char buf[], size_t buf_size, const char *name, 76 const char *tail, const char *desc); 77 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr, 78 int *pkey_type, long *pkeylen, 79 char **palgnam, ENGINE *keygen_engine); 80 static CONF *req_conf = NULL; 81 static CONF *addext_conf = NULL; 82 static int batch = 0; 83 84 typedef enum OPTION_choice { 85 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, 86 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_KEYGEN_ENGINE, OPT_KEY, 87 OPT_PUBKEY, OPT_NEW, OPT_CONFIG, OPT_KEYFORM, OPT_IN, OPT_OUT, 88 OPT_KEYOUT, OPT_PASSIN, OPT_PASSOUT, OPT_NEWKEY, 89 OPT_PKEYOPT, OPT_SIGOPT, OPT_BATCH, OPT_NEWHDR, OPT_MODULUS, 90 OPT_VERIFY, OPT_NODES, OPT_NOOUT, OPT_VERBOSE, OPT_UTF8, 91 OPT_NAMEOPT, OPT_REQOPT, OPT_SUBJ, OPT_SUBJECT, OPT_TEXT, OPT_X509, 92 OPT_MULTIVALUE_RDN, OPT_DAYS, OPT_SET_SERIAL, OPT_ADDEXT, OPT_EXTENSIONS, 93 OPT_REQEXTS, OPT_PRECERT, OPT_MD, 94 OPT_R_ENUM 95 } OPTION_CHOICE; 96 97 const OPTIONS req_options[] = { 98 {"help", OPT_HELP, '-', "Display this summary"}, 99 {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"}, 100 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"}, 101 {"in", OPT_IN, '<', "Input file"}, 102 {"out", OPT_OUT, '>', "Output file"}, 103 {"key", OPT_KEY, 's', "Private key to use"}, 104 {"keyform", OPT_KEYFORM, 'f', "Key file format"}, 105 {"pubkey", OPT_PUBKEY, '-', "Output public key"}, 106 {"new", OPT_NEW, '-', "New request"}, 107 {"config", OPT_CONFIG, '<', "Request template file"}, 108 {"keyout", OPT_KEYOUT, '>', "File to send the key to"}, 109 {"passin", OPT_PASSIN, 's', "Private key password source"}, 110 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"}, 111 OPT_R_OPTIONS, 112 {"newkey", OPT_NEWKEY, 's', "Specify as type:bits"}, 113 {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"}, 114 {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"}, 115 {"batch", OPT_BATCH, '-', 116 "Do not ask anything during request generation"}, 117 {"newhdr", OPT_NEWHDR, '-', "Output \"NEW\" in the header lines"}, 118 {"modulus", OPT_MODULUS, '-', "RSA modulus"}, 119 {"verify", OPT_VERIFY, '-', "Verify signature on REQ"}, 120 {"nodes", OPT_NODES, '-', "Don't encrypt the output key"}, 121 {"noout", OPT_NOOUT, '-', "Do not output REQ"}, 122 {"verbose", OPT_VERBOSE, '-', "Verbose output"}, 123 {"utf8", OPT_UTF8, '-', "Input characters are UTF8 (default ASCII)"}, 124 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"}, 125 {"reqopt", OPT_REQOPT, 's', "Various request text options"}, 126 {"text", OPT_TEXT, '-', "Text form of request"}, 127 {"x509", OPT_X509, '-', 128 "Output a x509 structure instead of a cert request"}, 129 {OPT_MORE_STR, 1, 1, "(Required by some CA's)"}, 130 {"subj", OPT_SUBJ, 's', "Set or modify request subject"}, 131 {"subject", OPT_SUBJECT, '-', "Output the request's subject"}, 132 {"multivalue-rdn", OPT_MULTIVALUE_RDN, '-', 133 "Enable support for multivalued RDNs"}, 134 {"days", OPT_DAYS, 'p', "Number of days cert is valid for"}, 135 {"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"}, 136 {"addext", OPT_ADDEXT, 's', 137 "Additional cert extension key=value pair (may be given more than once)"}, 138 {"extensions", OPT_EXTENSIONS, 's', 139 "Cert extension section (override value in config file)"}, 140 {"reqexts", OPT_REQEXTS, 's', 141 "Request extension section (override value in config file)"}, 142 {"precert", OPT_PRECERT, '-', "Add a poison extension (implies -new)"}, 143 {"", OPT_MD, '-', "Any supported digest"}, 144 #ifndef OPENSSL_NO_ENGINE 145 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, 146 {"keygen_engine", OPT_KEYGEN_ENGINE, 's', 147 "Specify engine to be used for key generation operations"}, 148 #endif 149 {NULL} 150 }; 151 152 153 /* 154 * An LHASH of strings, where each string is an extension name. 155 */ 156 static unsigned long ext_name_hash(const OPENSSL_STRING *a) 157 { 158 return OPENSSL_LH_strhash((const char *)a); 159 } 160 161 static int ext_name_cmp(const OPENSSL_STRING *a, const OPENSSL_STRING *b) 162 { 163 return strcmp((const char *)a, (const char *)b); 164 } 165 166 static void exts_cleanup(OPENSSL_STRING *x) 167 { 168 OPENSSL_free((char *)x); 169 } 170 171 /* 172 * Is the |kv| key already duplicated? This is remarkably tricky to get 173 * right. Return 0 if unique, -1 on runtime error; 1 if found or a syntax 174 * error. 175 */ 176 static int duplicated(LHASH_OF(OPENSSL_STRING) *addexts, char *kv) 177 { 178 char *p; 179 size_t off; 180 181 /* Check syntax. */ 182 /* Skip leading whitespace, make a copy. */ 183 while (*kv && isspace(*kv)) 184 if (*++kv == '\0') 185 return 1; 186 if ((p = strchr(kv, '=')) == NULL) 187 return 1; 188 off = p - kv; 189 if ((kv = OPENSSL_strdup(kv)) == NULL) 190 return -1; 191 192 /* Skip trailing space before the equal sign. */ 193 for (p = kv + off; p > kv; --p) 194 if (!isspace(p[-1])) 195 break; 196 if (p == kv) { 197 OPENSSL_free(kv); 198 return 1; 199 } 200 *p = '\0'; 201 202 /* Finally have a clean "key"; see if it's there [by attempt to add it]. */ 203 if ((p = (char *)lh_OPENSSL_STRING_insert(addexts, (OPENSSL_STRING*)kv)) 204 != NULL || lh_OPENSSL_STRING_error(addexts)) { 205 OPENSSL_free(p != NULL ? p : kv); 206 return -1; 207 } 208 209 return 0; 210 } 211 212 int req_main(int argc, char **argv) 213 { 214 ASN1_INTEGER *serial = NULL; 215 BIO *in = NULL, *out = NULL; 216 ENGINE *e = NULL, *gen_eng = NULL; 217 EVP_PKEY *pkey = NULL; 218 EVP_PKEY_CTX *genctx = NULL; 219 STACK_OF(OPENSSL_STRING) *pkeyopts = NULL, *sigopts = NULL; 220 LHASH_OF(OPENSSL_STRING) *addexts = NULL; 221 X509 *x509ss = NULL; 222 X509_REQ *req = NULL; 223 const EVP_CIPHER *cipher = NULL; 224 const EVP_MD *md_alg = NULL, *digest = NULL; 225 BIO *addext_bio = NULL; 226 char *extensions = NULL, *infile = NULL; 227 char *outfile = NULL, *keyfile = NULL; 228 char *keyalgstr = NULL, *p, *prog, *passargin = NULL, *passargout = NULL; 229 char *passin = NULL, *passout = NULL; 230 char *nofree_passin = NULL, *nofree_passout = NULL; 231 char *req_exts = NULL, *subj = NULL; 232 char *template = default_config_file, *keyout = NULL; 233 const char *keyalg = NULL; 234 OPTION_CHOICE o; 235 int ret = 1, x509 = 0, days = 0, i = 0, newreq = 0, verbose = 0; 236 int pkey_type = -1, private = 0; 237 int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyform = FORMAT_PEM; 238 int modulus = 0, multirdn = 0, verify = 0, noout = 0, text = 0; 239 int nodes = 0, newhdr = 0, subject = 0, pubkey = 0, precert = 0; 240 long newkey = -1; 241 unsigned long chtype = MBSTRING_ASC, reqflag = 0; 242 243 #ifndef OPENSSL_NO_DES 244 cipher = EVP_des_ede3_cbc(); 245 #endif 246 247 prog = opt_init(argc, argv, req_options); 248 while ((o = opt_next()) != OPT_EOF) { 249 switch (o) { 250 case OPT_EOF: 251 case OPT_ERR: 252 opthelp: 253 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); 254 goto end; 255 case OPT_HELP: 256 opt_help(req_options); 257 ret = 0; 258 goto end; 259 case OPT_INFORM: 260 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat)) 261 goto opthelp; 262 break; 263 case OPT_OUTFORM: 264 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat)) 265 goto opthelp; 266 break; 267 case OPT_ENGINE: 268 e = setup_engine(opt_arg(), 0); 269 break; 270 case OPT_KEYGEN_ENGINE: 271 #ifndef OPENSSL_NO_ENGINE 272 gen_eng = ENGINE_by_id(opt_arg()); 273 if (gen_eng == NULL) { 274 BIO_printf(bio_err, "Can't find keygen engine %s\n", *argv); 275 goto opthelp; 276 } 277 #endif 278 break; 279 case OPT_KEY: 280 keyfile = opt_arg(); 281 break; 282 case OPT_PUBKEY: 283 pubkey = 1; 284 break; 285 case OPT_NEW: 286 newreq = 1; 287 break; 288 case OPT_CONFIG: 289 template = opt_arg(); 290 break; 291 case OPT_KEYFORM: 292 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform)) 293 goto opthelp; 294 break; 295 case OPT_IN: 296 infile = opt_arg(); 297 break; 298 case OPT_OUT: 299 outfile = opt_arg(); 300 break; 301 case OPT_KEYOUT: 302 keyout = opt_arg(); 303 break; 304 case OPT_PASSIN: 305 passargin = opt_arg(); 306 break; 307 case OPT_PASSOUT: 308 passargout = opt_arg(); 309 break; 310 case OPT_R_CASES: 311 if (!opt_rand(o)) 312 goto end; 313 break; 314 case OPT_NEWKEY: 315 keyalg = opt_arg(); 316 newreq = 1; 317 break; 318 case OPT_PKEYOPT: 319 if (!pkeyopts) 320 pkeyopts = sk_OPENSSL_STRING_new_null(); 321 if (!pkeyopts || !sk_OPENSSL_STRING_push(pkeyopts, opt_arg())) 322 goto opthelp; 323 break; 324 case OPT_SIGOPT: 325 if (!sigopts) 326 sigopts = sk_OPENSSL_STRING_new_null(); 327 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg())) 328 goto opthelp; 329 break; 330 case OPT_BATCH: 331 batch = 1; 332 break; 333 case OPT_NEWHDR: 334 newhdr = 1; 335 break; 336 case OPT_MODULUS: 337 modulus = 1; 338 break; 339 case OPT_VERIFY: 340 verify = 1; 341 break; 342 case OPT_NODES: 343 nodes = 1; 344 break; 345 case OPT_NOOUT: 346 noout = 1; 347 break; 348 case OPT_VERBOSE: 349 verbose = 1; 350 break; 351 case OPT_UTF8: 352 chtype = MBSTRING_UTF8; 353 break; 354 case OPT_NAMEOPT: 355 if (!set_nameopt(opt_arg())) 356 goto opthelp; 357 break; 358 case OPT_REQOPT: 359 if (!set_cert_ex(&reqflag, opt_arg())) 360 goto opthelp; 361 break; 362 case OPT_TEXT: 363 text = 1; 364 break; 365 case OPT_X509: 366 x509 = 1; 367 break; 368 case OPT_DAYS: 369 days = atoi(opt_arg()); 370 break; 371 case OPT_SET_SERIAL: 372 if (serial != NULL) { 373 BIO_printf(bio_err, "Serial number supplied twice\n"); 374 goto opthelp; 375 } 376 serial = s2i_ASN1_INTEGER(NULL, opt_arg()); 377 if (serial == NULL) 378 goto opthelp; 379 break; 380 case OPT_SUBJECT: 381 subject = 1; 382 break; 383 case OPT_SUBJ: 384 subj = opt_arg(); 385 break; 386 case OPT_MULTIVALUE_RDN: 387 multirdn = 1; 388 break; 389 case OPT_ADDEXT: 390 p = opt_arg(); 391 if (addexts == NULL) { 392 addexts = lh_OPENSSL_STRING_new(ext_name_hash, ext_name_cmp); 393 addext_bio = BIO_new(BIO_s_mem()); 394 if (addexts == NULL || addext_bio == NULL) 395 goto end; 396 } 397 i = duplicated(addexts, p); 398 if (i == 1) 399 goto opthelp; 400 if (i < 0 || BIO_printf(addext_bio, "%s\n", opt_arg()) < 0) 401 goto end; 402 break; 403 case OPT_EXTENSIONS: 404 extensions = opt_arg(); 405 break; 406 case OPT_REQEXTS: 407 req_exts = opt_arg(); 408 break; 409 case OPT_PRECERT: 410 newreq = precert = 1; 411 break; 412 case OPT_MD: 413 if (!opt_md(opt_unknown(), &md_alg)) 414 goto opthelp; 415 digest = md_alg; 416 break; 417 } 418 } 419 argc = opt_num_rest(); 420 if (argc != 0) 421 goto opthelp; 422 423 if (days && !x509) 424 BIO_printf(bio_err, "Ignoring -days; not generating a certificate\n"); 425 if (x509 && infile == NULL) 426 newreq = 1; 427 428 /* TODO: simplify this as pkey is still always NULL here */ 429 private = newreq && (pkey == NULL) ? 1 : 0; 430 431 if (!app_passwd(passargin, passargout, &passin, &passout)) { 432 BIO_printf(bio_err, "Error getting passwords\n"); 433 goto end; 434 } 435 436 if (verbose) 437 BIO_printf(bio_err, "Using configuration from %s\n", template); 438 req_conf = app_load_config(template); 439 if (addext_bio) { 440 if (verbose) 441 BIO_printf(bio_err, 442 "Using additional configuration from command line\n"); 443 addext_conf = app_load_config_bio(addext_bio, NULL); 444 } 445 if (template != default_config_file && !app_load_modules(req_conf)) 446 goto end; 447 448 if (req_conf != NULL) { 449 p = NCONF_get_string(req_conf, NULL, "oid_file"); 450 if (p == NULL) 451 ERR_clear_error(); 452 if (p != NULL) { 453 BIO *oid_bio; 454 455 oid_bio = BIO_new_file(p, "r"); 456 if (oid_bio == NULL) { 457 /*- 458 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p); 459 ERR_print_errors(bio_err); 460 */ 461 } else { 462 OBJ_create_objects(oid_bio); 463 BIO_free(oid_bio); 464 } 465 } 466 } 467 if (!add_oid_section(req_conf)) 468 goto end; 469 470 if (md_alg == NULL) { 471 p = NCONF_get_string(req_conf, SECTION, "default_md"); 472 if (p == NULL) { 473 ERR_clear_error(); 474 } else { 475 if (!opt_md(p, &md_alg)) 476 goto opthelp; 477 digest = md_alg; 478 } 479 } 480 481 if (extensions == NULL) { 482 extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS); 483 if (extensions == NULL) 484 ERR_clear_error(); 485 } 486 if (extensions != NULL) { 487 /* Check syntax of file */ 488 X509V3_CTX ctx; 489 X509V3_set_ctx_test(&ctx); 490 X509V3_set_nconf(&ctx, req_conf); 491 if (!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) { 492 BIO_printf(bio_err, 493 "Error Loading extension section %s\n", extensions); 494 goto end; 495 } 496 } 497 if (addext_conf != NULL) { 498 /* Check syntax of command line extensions */ 499 X509V3_CTX ctx; 500 X509V3_set_ctx_test(&ctx); 501 X509V3_set_nconf(&ctx, addext_conf); 502 if (!X509V3_EXT_add_nconf(addext_conf, &ctx, "default", NULL)) { 503 BIO_printf(bio_err, "Error Loading command line extensions\n"); 504 goto end; 505 } 506 } 507 508 if (passin == NULL) { 509 passin = nofree_passin = 510 NCONF_get_string(req_conf, SECTION, "input_password"); 511 if (passin == NULL) 512 ERR_clear_error(); 513 } 514 515 if (passout == NULL) { 516 passout = nofree_passout = 517 NCONF_get_string(req_conf, SECTION, "output_password"); 518 if (passout == NULL) 519 ERR_clear_error(); 520 } 521 522 p = NCONF_get_string(req_conf, SECTION, STRING_MASK); 523 if (p == NULL) 524 ERR_clear_error(); 525 526 if (p != NULL && !ASN1_STRING_set_default_mask_asc(p)) { 527 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p); 528 goto end; 529 } 530 531 if (chtype != MBSTRING_UTF8) { 532 p = NCONF_get_string(req_conf, SECTION, UTF8_IN); 533 if (p == NULL) 534 ERR_clear_error(); 535 else if (strcmp(p, "yes") == 0) 536 chtype = MBSTRING_UTF8; 537 } 538 539 if (req_exts == NULL) { 540 req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS); 541 if (req_exts == NULL) 542 ERR_clear_error(); 543 } 544 if (req_exts != NULL) { 545 /* Check syntax of file */ 546 X509V3_CTX ctx; 547 X509V3_set_ctx_test(&ctx); 548 X509V3_set_nconf(&ctx, req_conf); 549 if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) { 550 BIO_printf(bio_err, 551 "Error Loading request extension section %s\n", 552 req_exts); 553 goto end; 554 } 555 } 556 557 if (keyfile != NULL) { 558 pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key"); 559 if (pkey == NULL) { 560 /* load_key() has already printed an appropriate message */ 561 goto end; 562 } else { 563 app_RAND_load_conf(req_conf, SECTION); 564 } 565 } 566 567 if (newreq && (pkey == NULL)) { 568 app_RAND_load_conf(req_conf, SECTION); 569 570 if (!NCONF_get_number(req_conf, SECTION, BITS, &newkey)) { 571 newkey = DEFAULT_KEY_LENGTH; 572 } 573 574 if (keyalg != NULL) { 575 genctx = set_keygen_ctx(keyalg, &pkey_type, &newkey, 576 &keyalgstr, gen_eng); 577 if (genctx == NULL) 578 goto end; 579 } 580 581 if (newkey < MIN_KEY_LENGTH 582 && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) { 583 BIO_printf(bio_err, "private key length is too short,\n"); 584 BIO_printf(bio_err, "it needs to be at least %d bits, not %ld\n", 585 MIN_KEY_LENGTH, newkey); 586 goto end; 587 } 588 589 if (pkey_type == EVP_PKEY_RSA && newkey > OPENSSL_RSA_MAX_MODULUS_BITS) 590 BIO_printf(bio_err, 591 "Warning: It is not recommended to use more than %d bit for RSA keys.\n" 592 " Your key size is %ld! Larger key size may behave not as expected.\n", 593 OPENSSL_RSA_MAX_MODULUS_BITS, newkey); 594 595 #ifndef OPENSSL_NO_DSA 596 if (pkey_type == EVP_PKEY_DSA && newkey > OPENSSL_DSA_MAX_MODULUS_BITS) 597 BIO_printf(bio_err, 598 "Warning: It is not recommended to use more than %d bit for DSA keys.\n" 599 " Your key size is %ld! Larger key size may behave not as expected.\n", 600 OPENSSL_DSA_MAX_MODULUS_BITS, newkey); 601 #endif 602 603 if (genctx == NULL) { 604 genctx = set_keygen_ctx(NULL, &pkey_type, &newkey, 605 &keyalgstr, gen_eng); 606 if (!genctx) 607 goto end; 608 } 609 610 if (pkeyopts != NULL) { 611 char *genopt; 612 for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) { 613 genopt = sk_OPENSSL_STRING_value(pkeyopts, i); 614 if (pkey_ctrl_string(genctx, genopt) <= 0) { 615 BIO_printf(bio_err, "parameter error \"%s\"\n", genopt); 616 ERR_print_errors(bio_err); 617 goto end; 618 } 619 } 620 } 621 622 if (pkey_type == EVP_PKEY_EC) { 623 BIO_printf(bio_err, "Generating an EC private key\n"); 624 } else { 625 BIO_printf(bio_err, "Generating a %s private key\n", keyalgstr); 626 } 627 628 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb); 629 EVP_PKEY_CTX_set_app_data(genctx, bio_err); 630 631 if (EVP_PKEY_keygen(genctx, &pkey) <= 0) { 632 BIO_puts(bio_err, "Error Generating Key\n"); 633 goto end; 634 } 635 636 EVP_PKEY_CTX_free(genctx); 637 genctx = NULL; 638 639 if (keyout == NULL) { 640 keyout = NCONF_get_string(req_conf, SECTION, KEYFILE); 641 if (keyout == NULL) 642 ERR_clear_error(); 643 } 644 645 if (keyout == NULL) 646 BIO_printf(bio_err, "writing new private key to stdout\n"); 647 else 648 BIO_printf(bio_err, "writing new private key to '%s'\n", keyout); 649 out = bio_open_owner(keyout, outformat, private); 650 if (out == NULL) 651 goto end; 652 653 p = NCONF_get_string(req_conf, SECTION, "encrypt_rsa_key"); 654 if (p == NULL) { 655 ERR_clear_error(); 656 p = NCONF_get_string(req_conf, SECTION, "encrypt_key"); 657 if (p == NULL) 658 ERR_clear_error(); 659 } 660 if ((p != NULL) && (strcmp(p, "no") == 0)) 661 cipher = NULL; 662 if (nodes) 663 cipher = NULL; 664 665 i = 0; 666 loop: 667 assert(private); 668 if (!PEM_write_bio_PrivateKey(out, pkey, cipher, 669 NULL, 0, NULL, passout)) { 670 if ((ERR_GET_REASON(ERR_peek_error()) == 671 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) { 672 ERR_clear_error(); 673 i++; 674 goto loop; 675 } 676 goto end; 677 } 678 BIO_free(out); 679 out = NULL; 680 BIO_printf(bio_err, "-----\n"); 681 } 682 683 if (!newreq) { 684 in = bio_open_default(infile, 'r', informat); 685 if (in == NULL) 686 goto end; 687 688 if (informat == FORMAT_ASN1) 689 req = d2i_X509_REQ_bio(in, NULL); 690 else 691 req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL); 692 if (req == NULL) { 693 BIO_printf(bio_err, "unable to load X509 request\n"); 694 goto end; 695 } 696 } 697 698 if (newreq || x509) { 699 if (pkey == NULL) { 700 BIO_printf(bio_err, "you need to specify a private key\n"); 701 goto end; 702 } 703 704 if (req == NULL) { 705 req = X509_REQ_new(); 706 if (req == NULL) { 707 goto end; 708 } 709 710 i = make_REQ(req, pkey, subj, multirdn, !x509, chtype); 711 subj = NULL; /* done processing '-subj' option */ 712 if (!i) { 713 BIO_printf(bio_err, "problems making Certificate Request\n"); 714 goto end; 715 } 716 } 717 if (x509) { 718 EVP_PKEY *tmppkey; 719 X509V3_CTX ext_ctx; 720 if ((x509ss = X509_new()) == NULL) 721 goto end; 722 723 /* Set version to V3 */ 724 if ((extensions != NULL || addext_conf != NULL) 725 && !X509_set_version(x509ss, 2)) 726 goto end; 727 if (serial != NULL) { 728 if (!X509_set_serialNumber(x509ss, serial)) 729 goto end; 730 } else { 731 if (!rand_serial(NULL, X509_get_serialNumber(x509ss))) 732 goto end; 733 } 734 735 if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req))) 736 goto end; 737 if (days == 0) { 738 /* set default days if it's not specified */ 739 days = 30; 740 } 741 if (!set_cert_times(x509ss, NULL, NULL, days)) 742 goto end; 743 if (!X509_set_subject_name 744 (x509ss, X509_REQ_get_subject_name(req))) 745 goto end; 746 tmppkey = X509_REQ_get0_pubkey(req); 747 if (!tmppkey || !X509_set_pubkey(x509ss, tmppkey)) 748 goto end; 749 750 /* Set up V3 context struct */ 751 752 X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0); 753 X509V3_set_nconf(&ext_ctx, req_conf); 754 755 /* Add extensions */ 756 if (extensions != NULL && !X509V3_EXT_add_nconf(req_conf, 757 &ext_ctx, extensions, 758 x509ss)) { 759 BIO_printf(bio_err, "Error Loading extension section %s\n", 760 extensions); 761 goto end; 762 } 763 if (addext_conf != NULL 764 && !X509V3_EXT_add_nconf(addext_conf, &ext_ctx, "default", 765 x509ss)) { 766 BIO_printf(bio_err, "Error Loading command line extensions\n"); 767 goto end; 768 } 769 770 /* If a pre-cert was requested, we need to add a poison extension */ 771 if (precert) { 772 if (X509_add1_ext_i2d(x509ss, NID_ct_precert_poison, NULL, 1, 0) 773 != 1) { 774 BIO_printf(bio_err, "Error adding poison extension\n"); 775 goto end; 776 } 777 } 778 779 i = do_X509_sign(x509ss, pkey, digest, sigopts); 780 if (!i) { 781 ERR_print_errors(bio_err); 782 goto end; 783 } 784 } else { 785 X509V3_CTX ext_ctx; 786 787 /* Set up V3 context struct */ 788 789 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0); 790 X509V3_set_nconf(&ext_ctx, req_conf); 791 792 /* Add extensions */ 793 if (req_exts != NULL 794 && !X509V3_EXT_REQ_add_nconf(req_conf, &ext_ctx, 795 req_exts, req)) { 796 BIO_printf(bio_err, "Error Loading extension section %s\n", 797 req_exts); 798 goto end; 799 } 800 if (addext_conf != NULL 801 && !X509V3_EXT_REQ_add_nconf(addext_conf, &ext_ctx, "default", 802 req)) { 803 BIO_printf(bio_err, "Error Loading command line extensions\n"); 804 goto end; 805 } 806 i = do_X509_REQ_sign(req, pkey, digest, sigopts); 807 if (!i) { 808 ERR_print_errors(bio_err); 809 goto end; 810 } 811 } 812 } 813 814 if (subj && x509) { 815 BIO_printf(bio_err, "Cannot modify certificate subject\n"); 816 goto end; 817 } 818 819 if (subj && !x509) { 820 if (verbose) { 821 BIO_printf(bio_err, "Modifying Request's Subject\n"); 822 print_name(bio_err, "old subject=", 823 X509_REQ_get_subject_name(req), get_nameopt()); 824 } 825 826 if (build_subject(req, subj, chtype, multirdn) == 0) { 827 BIO_printf(bio_err, "ERROR: cannot modify subject\n"); 828 ret = 1; 829 goto end; 830 } 831 832 if (verbose) { 833 print_name(bio_err, "new subject=", 834 X509_REQ_get_subject_name(req), get_nameopt()); 835 } 836 } 837 838 if (verify && !x509) { 839 EVP_PKEY *tpubkey = pkey; 840 841 if (tpubkey == NULL) { 842 tpubkey = X509_REQ_get0_pubkey(req); 843 if (tpubkey == NULL) 844 goto end; 845 } 846 847 i = X509_REQ_verify(req, tpubkey); 848 849 if (i < 0) { 850 goto end; 851 } else if (i == 0) { 852 BIO_printf(bio_err, "verify failure\n"); 853 ERR_print_errors(bio_err); 854 } else { /* if (i > 0) */ 855 BIO_printf(bio_err, "verify OK\n"); 856 } 857 } 858 859 if (noout && !text && !modulus && !subject && !pubkey) { 860 ret = 0; 861 goto end; 862 } 863 864 out = bio_open_default(outfile, 865 keyout != NULL && outfile != NULL && 866 strcmp(keyout, outfile) == 0 ? 'a' : 'w', 867 outformat); 868 if (out == NULL) 869 goto end; 870 871 if (pubkey) { 872 EVP_PKEY *tpubkey = X509_REQ_get0_pubkey(req); 873 874 if (tpubkey == NULL) { 875 BIO_printf(bio_err, "Error getting public key\n"); 876 ERR_print_errors(bio_err); 877 goto end; 878 } 879 PEM_write_bio_PUBKEY(out, tpubkey); 880 } 881 882 if (text) { 883 if (x509) 884 X509_print_ex(out, x509ss, get_nameopt(), reqflag); 885 else 886 X509_REQ_print_ex(out, req, get_nameopt(), reqflag); 887 } 888 889 if (subject) { 890 if (x509) 891 print_name(out, "subject=", X509_get_subject_name(x509ss), 892 get_nameopt()); 893 else 894 print_name(out, "subject=", X509_REQ_get_subject_name(req), 895 get_nameopt()); 896 } 897 898 if (modulus) { 899 EVP_PKEY *tpubkey; 900 901 if (x509) 902 tpubkey = X509_get0_pubkey(x509ss); 903 else 904 tpubkey = X509_REQ_get0_pubkey(req); 905 if (tpubkey == NULL) { 906 fprintf(stdout, "Modulus=unavailable\n"); 907 goto end; 908 } 909 fprintf(stdout, "Modulus="); 910 #ifndef OPENSSL_NO_RSA 911 if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA) { 912 const BIGNUM *n; 913 RSA_get0_key(EVP_PKEY_get0_RSA(tpubkey), &n, NULL, NULL); 914 BN_print(out, n); 915 } else 916 #endif 917 fprintf(stdout, "Wrong Algorithm type"); 918 fprintf(stdout, "\n"); 919 } 920 921 if (!noout && !x509) { 922 if (outformat == FORMAT_ASN1) 923 i = i2d_X509_REQ_bio(out, req); 924 else if (newhdr) 925 i = PEM_write_bio_X509_REQ_NEW(out, req); 926 else 927 i = PEM_write_bio_X509_REQ(out, req); 928 if (!i) { 929 BIO_printf(bio_err, "unable to write X509 request\n"); 930 goto end; 931 } 932 } 933 if (!noout && x509 && (x509ss != NULL)) { 934 if (outformat == FORMAT_ASN1) 935 i = i2d_X509_bio(out, x509ss); 936 else 937 i = PEM_write_bio_X509(out, x509ss); 938 if (!i) { 939 BIO_printf(bio_err, "unable to write X509 certificate\n"); 940 goto end; 941 } 942 } 943 ret = 0; 944 end: 945 if (ret) { 946 ERR_print_errors(bio_err); 947 } 948 NCONF_free(req_conf); 949 NCONF_free(addext_conf); 950 BIO_free(addext_bio); 951 BIO_free(in); 952 BIO_free_all(out); 953 EVP_PKEY_free(pkey); 954 EVP_PKEY_CTX_free(genctx); 955 sk_OPENSSL_STRING_free(pkeyopts); 956 sk_OPENSSL_STRING_free(sigopts); 957 lh_OPENSSL_STRING_doall(addexts, exts_cleanup); 958 lh_OPENSSL_STRING_free(addexts); 959 #ifndef OPENSSL_NO_ENGINE 960 ENGINE_free(gen_eng); 961 #endif 962 OPENSSL_free(keyalgstr); 963 X509_REQ_free(req); 964 X509_free(x509ss); 965 ASN1_INTEGER_free(serial); 966 release_engine(e); 967 if (passin != nofree_passin) 968 OPENSSL_free(passin); 969 if (passout != nofree_passout) 970 OPENSSL_free(passout); 971 return ret; 972 } 973 974 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *subj, int multirdn, 975 int attribs, unsigned long chtype) 976 { 977 int ret = 0, i; 978 char no_prompt = 0; 979 STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL; 980 char *tmp, *dn_sect, *attr_sect; 981 982 tmp = NCONF_get_string(req_conf, SECTION, PROMPT); 983 if (tmp == NULL) 984 ERR_clear_error(); 985 if ((tmp != NULL) && strcmp(tmp, "no") == 0) 986 no_prompt = 1; 987 988 dn_sect = NCONF_get_string(req_conf, SECTION, DISTINGUISHED_NAME); 989 if (dn_sect == NULL) { 990 BIO_printf(bio_err, "unable to find '%s' in config\n", 991 DISTINGUISHED_NAME); 992 goto err; 993 } 994 dn_sk = NCONF_get_section(req_conf, dn_sect); 995 if (dn_sk == NULL) { 996 BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect); 997 goto err; 998 } 999 1000 attr_sect = NCONF_get_string(req_conf, SECTION, ATTRIBUTES); 1001 if (attr_sect == NULL) { 1002 ERR_clear_error(); 1003 attr_sk = NULL; 1004 } else { 1005 attr_sk = NCONF_get_section(req_conf, attr_sect); 1006 if (attr_sk == NULL) { 1007 BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect); 1008 goto err; 1009 } 1010 } 1011 1012 /* setup version number */ 1013 if (!X509_REQ_set_version(req, 0L)) 1014 goto err; /* version 1 */ 1015 1016 if (subj) 1017 i = build_subject(req, subj, chtype, multirdn); 1018 else if (no_prompt) 1019 i = auto_info(req, dn_sk, attr_sk, attribs, chtype); 1020 else 1021 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs, 1022 chtype); 1023 if (!i) 1024 goto err; 1025 1026 if (!X509_REQ_set_pubkey(req, pkey)) 1027 goto err; 1028 1029 ret = 1; 1030 err: 1031 return ret; 1032 } 1033 1034 /* 1035 * subject is expected to be in the format /type0=value0/type1=value1/type2=... 1036 * where characters may be escaped by \ 1037 */ 1038 static int build_subject(X509_REQ *req, const char *subject, unsigned long chtype, 1039 int multirdn) 1040 { 1041 X509_NAME *n; 1042 1043 if ((n = parse_name(subject, chtype, multirdn)) == NULL) 1044 return 0; 1045 1046 if (!X509_REQ_set_subject_name(req, n)) { 1047 X509_NAME_free(n); 1048 return 0; 1049 } 1050 X509_NAME_free(n); 1051 return 1; 1052 } 1053 1054 static int prompt_info(X509_REQ *req, 1055 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect, 1056 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect, 1057 int attribs, unsigned long chtype) 1058 { 1059 int i; 1060 char *p, *q; 1061 char buf[100]; 1062 int nid, mval; 1063 long n_min, n_max; 1064 char *type, *value; 1065 const char *def; 1066 CONF_VALUE *v; 1067 X509_NAME *subj; 1068 subj = X509_REQ_get_subject_name(req); 1069 1070 if (!batch) { 1071 BIO_printf(bio_err, 1072 "You are about to be asked to enter information that will be incorporated\n"); 1073 BIO_printf(bio_err, "into your certificate request.\n"); 1074 BIO_printf(bio_err, 1075 "What you are about to enter is what is called a Distinguished Name or a DN.\n"); 1076 BIO_printf(bio_err, 1077 "There are quite a few fields but you can leave some blank\n"); 1078 BIO_printf(bio_err, 1079 "For some fields there will be a default value,\n"); 1080 BIO_printf(bio_err, 1081 "If you enter '.', the field will be left blank.\n"); 1082 BIO_printf(bio_err, "-----\n"); 1083 } 1084 1085 if (sk_CONF_VALUE_num(dn_sk)) { 1086 i = -1; 1087 start: 1088 for ( ; ; ) { 1089 i++; 1090 if (sk_CONF_VALUE_num(dn_sk) <= i) 1091 break; 1092 1093 v = sk_CONF_VALUE_value(dn_sk, i); 1094 p = q = NULL; 1095 type = v->name; 1096 if (!check_end(type, "_min") || !check_end(type, "_max") || 1097 !check_end(type, "_default") || !check_end(type, "_value")) 1098 continue; 1099 /* 1100 * Skip past any leading X. X: X, etc to allow for multiple 1101 * instances 1102 */ 1103 for (p = v->name; *p; p++) 1104 if ((*p == ':') || (*p == ',') || (*p == '.')) { 1105 p++; 1106 if (*p) 1107 type = p; 1108 break; 1109 } 1110 if (*type == '+') { 1111 mval = -1; 1112 type++; 1113 } else { 1114 mval = 0; 1115 } 1116 /* If OBJ not recognised ignore it */ 1117 if ((nid = OBJ_txt2nid(type)) == NID_undef) 1118 goto start; 1119 if (!join(buf, sizeof(buf), v->name, "_default", "Name")) 1120 return 0; 1121 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) { 1122 ERR_clear_error(); 1123 def = ""; 1124 } 1125 1126 if (!join(buf, sizeof(buf), v->name, "_value", "Name")) 1127 return 0; 1128 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) { 1129 ERR_clear_error(); 1130 value = NULL; 1131 } 1132 1133 if (!join(buf, sizeof(buf), v->name, "_min", "Name")) 1134 return 0; 1135 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) { 1136 ERR_clear_error(); 1137 n_min = -1; 1138 } 1139 1140 1141 if (!join(buf, sizeof(buf), v->name, "_max", "Name")) 1142 return 0; 1143 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) { 1144 ERR_clear_error(); 1145 n_max = -1; 1146 } 1147 1148 if (!add_DN_object(subj, v->value, def, value, nid, 1149 n_min, n_max, chtype, mval)) 1150 return 0; 1151 } 1152 if (X509_NAME_entry_count(subj) == 0) { 1153 BIO_printf(bio_err, 1154 "error, no objects specified in config file\n"); 1155 return 0; 1156 } 1157 1158 if (attribs) { 1159 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0) 1160 && (!batch)) { 1161 BIO_printf(bio_err, 1162 "\nPlease enter the following 'extra' attributes\n"); 1163 BIO_printf(bio_err, 1164 "to be sent with your certificate request\n"); 1165 } 1166 1167 i = -1; 1168 start2: 1169 for ( ; ; ) { 1170 i++; 1171 if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i)) 1172 break; 1173 1174 v = sk_CONF_VALUE_value(attr_sk, i); 1175 type = v->name; 1176 if ((nid = OBJ_txt2nid(type)) == NID_undef) 1177 goto start2; 1178 1179 if (!join(buf, sizeof(buf), type, "_default", "Name")) 1180 return 0; 1181 if ((def = NCONF_get_string(req_conf, attr_sect, buf)) 1182 == NULL) { 1183 ERR_clear_error(); 1184 def = ""; 1185 } 1186 1187 if (!join(buf, sizeof(buf), type, "_value", "Name")) 1188 return 0; 1189 if ((value = NCONF_get_string(req_conf, attr_sect, buf)) 1190 == NULL) { 1191 ERR_clear_error(); 1192 value = NULL; 1193 } 1194 1195 if (!join(buf, sizeof(buf), type,"_min", "Name")) 1196 return 0; 1197 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) { 1198 ERR_clear_error(); 1199 n_min = -1; 1200 } 1201 1202 if (!join(buf, sizeof(buf), type, "_max", "Name")) 1203 return 0; 1204 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) { 1205 ERR_clear_error(); 1206 n_max = -1; 1207 } 1208 1209 if (!add_attribute_object(req, 1210 v->value, def, value, nid, n_min, 1211 n_max, chtype)) 1212 return 0; 1213 } 1214 } 1215 } else { 1216 BIO_printf(bio_err, "No template, please set one up.\n"); 1217 return 0; 1218 } 1219 1220 return 1; 1221 1222 } 1223 1224 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk, 1225 STACK_OF(CONF_VALUE) *attr_sk, int attribs, 1226 unsigned long chtype) 1227 { 1228 int i, spec_char, plus_char; 1229 char *p, *q; 1230 char *type; 1231 CONF_VALUE *v; 1232 X509_NAME *subj; 1233 1234 subj = X509_REQ_get_subject_name(req); 1235 1236 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) { 1237 int mval; 1238 v = sk_CONF_VALUE_value(dn_sk, i); 1239 p = q = NULL; 1240 type = v->name; 1241 /* 1242 * Skip past any leading X. X: X, etc to allow for multiple instances 1243 */ 1244 for (p = v->name; *p; p++) { 1245 #ifndef CHARSET_EBCDIC 1246 spec_char = ((*p == ':') || (*p == ',') || (*p == '.')); 1247 #else 1248 spec_char = ((*p == os_toascii[':']) || (*p == os_toascii[',']) 1249 || (*p == os_toascii['.'])); 1250 #endif 1251 if (spec_char) { 1252 p++; 1253 if (*p) 1254 type = p; 1255 break; 1256 } 1257 } 1258 #ifndef CHARSET_EBCDIC 1259 plus_char = (*type == '+'); 1260 #else 1261 plus_char = (*type == os_toascii['+']); 1262 #endif 1263 if (plus_char) { 1264 type++; 1265 mval = -1; 1266 } else { 1267 mval = 0; 1268 } 1269 if (!X509_NAME_add_entry_by_txt(subj, type, chtype, 1270 (unsigned char *)v->value, -1, -1, 1271 mval)) 1272 return 0; 1273 1274 } 1275 1276 if (!X509_NAME_entry_count(subj)) { 1277 BIO_printf(bio_err, "error, no objects specified in config file\n"); 1278 return 0; 1279 } 1280 if (attribs) { 1281 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) { 1282 v = sk_CONF_VALUE_value(attr_sk, i); 1283 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype, 1284 (unsigned char *)v->value, -1)) 1285 return 0; 1286 } 1287 } 1288 return 1; 1289 } 1290 1291 static int add_DN_object(X509_NAME *n, char *text, const char *def, 1292 char *value, int nid, int n_min, int n_max, 1293 unsigned long chtype, int mval) 1294 { 1295 int ret = 0; 1296 char buf[1024]; 1297 1298 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf), 1299 "DN value", "DN default"); 1300 if ((ret == 0) || (ret == 1)) 1301 return ret; 1302 ret = 1; 1303 1304 if (!X509_NAME_add_entry_by_NID(n, nid, chtype, 1305 (unsigned char *)buf, -1, -1, mval)) 1306 ret = 0; 1307 1308 return ret; 1309 } 1310 1311 static int add_attribute_object(X509_REQ *req, char *text, const char *def, 1312 char *value, int nid, int n_min, 1313 int n_max, unsigned long chtype) 1314 { 1315 int ret = 0; 1316 char buf[1024]; 1317 1318 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf), 1319 "Attribute value", "Attribute default"); 1320 if ((ret == 0) || (ret == 1)) 1321 return ret; 1322 ret = 1; 1323 1324 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype, 1325 (unsigned char *)buf, -1)) { 1326 BIO_printf(bio_err, "Error adding attribute\n"); 1327 ERR_print_errors(bio_err); 1328 ret = 0; 1329 } 1330 1331 return ret; 1332 } 1333 1334 1335 static int build_data(char *text, const char *def, 1336 char *value, int n_min, int n_max, 1337 char *buf, const int buf_size, 1338 const char *desc1, const char *desc2 1339 ) 1340 { 1341 int i; 1342 start: 1343 if (!batch) 1344 BIO_printf(bio_err, "%s [%s]:", text, def); 1345 (void)BIO_flush(bio_err); 1346 if (value != NULL) { 1347 if (!join(buf, buf_size, value, "\n", desc1)) 1348 return 0; 1349 BIO_printf(bio_err, "%s\n", value); 1350 } else { 1351 buf[0] = '\0'; 1352 if (!batch) { 1353 if (!fgets(buf, buf_size, stdin)) 1354 return 0; 1355 } else { 1356 buf[0] = '\n'; 1357 buf[1] = '\0'; 1358 } 1359 } 1360 1361 if (buf[0] == '\0') 1362 return 0; 1363 if (buf[0] == '\n') { 1364 if ((def == NULL) || (def[0] == '\0')) 1365 return 1; 1366 if (!join(buf, buf_size, def, "\n", desc2)) 1367 return 0; 1368 } else if ((buf[0] == '.') && (buf[1] == '\n')) { 1369 return 1; 1370 } 1371 1372 i = strlen(buf); 1373 if (buf[i - 1] != '\n') { 1374 BIO_printf(bio_err, "weird input :-(\n"); 1375 return 0; 1376 } 1377 buf[--i] = '\0'; 1378 #ifdef CHARSET_EBCDIC 1379 ebcdic2ascii(buf, buf, i); 1380 #endif 1381 if (!req_check_len(i, n_min, n_max)) { 1382 if (batch || value) 1383 return 0; 1384 goto start; 1385 } 1386 return 2; 1387 } 1388 1389 static int req_check_len(int len, int n_min, int n_max) 1390 { 1391 if ((n_min > 0) && (len < n_min)) { 1392 BIO_printf(bio_err, 1393 "string is too short, it needs to be at least %d bytes long\n", 1394 n_min); 1395 return 0; 1396 } 1397 if ((n_max >= 0) && (len > n_max)) { 1398 BIO_printf(bio_err, 1399 "string is too long, it needs to be no more than %d bytes long\n", 1400 n_max); 1401 return 0; 1402 } 1403 return 1; 1404 } 1405 1406 /* Check if the end of a string matches 'end' */ 1407 static int check_end(const char *str, const char *end) 1408 { 1409 size_t elen, slen; 1410 const char *tmp; 1411 1412 elen = strlen(end); 1413 slen = strlen(str); 1414 if (elen > slen) 1415 return 1; 1416 tmp = str + slen - elen; 1417 return strcmp(tmp, end); 1418 } 1419 1420 /* 1421 * Merge the two strings together into the result buffer checking for 1422 * overflow and producing an error message if there is. 1423 */ 1424 static int join(char buf[], size_t buf_size, const char *name, 1425 const char *tail, const char *desc) 1426 { 1427 const size_t name_len = strlen(name), tail_len = strlen(tail); 1428 1429 if (name_len + tail_len + 1 > buf_size) { 1430 BIO_printf(bio_err, "%s '%s' too long\n", desc, name); 1431 return 0; 1432 } 1433 memcpy(buf, name, name_len); 1434 memcpy(buf + name_len, tail, tail_len + 1); 1435 return 1; 1436 } 1437 1438 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr, 1439 int *pkey_type, long *pkeylen, 1440 char **palgnam, ENGINE *keygen_engine) 1441 { 1442 EVP_PKEY_CTX *gctx = NULL; 1443 EVP_PKEY *param = NULL; 1444 long keylen = -1; 1445 BIO *pbio = NULL; 1446 const char *paramfile = NULL; 1447 1448 if (gstr == NULL) { 1449 *pkey_type = EVP_PKEY_RSA; 1450 keylen = *pkeylen; 1451 } else if (gstr[0] >= '0' && gstr[0] <= '9') { 1452 *pkey_type = EVP_PKEY_RSA; 1453 keylen = atol(gstr); 1454 *pkeylen = keylen; 1455 } else if (strncmp(gstr, "param:", 6) == 0) { 1456 paramfile = gstr + 6; 1457 } else { 1458 const char *p = strchr(gstr, ':'); 1459 int len; 1460 ENGINE *tmpeng; 1461 const EVP_PKEY_ASN1_METHOD *ameth; 1462 1463 if (p != NULL) 1464 len = p - gstr; 1465 else 1466 len = strlen(gstr); 1467 /* 1468 * The lookup of a the string will cover all engines so keep a note 1469 * of the implementation. 1470 */ 1471 1472 ameth = EVP_PKEY_asn1_find_str(&tmpeng, gstr, len); 1473 1474 if (ameth == NULL) { 1475 BIO_printf(bio_err, "Unknown algorithm %.*s\n", len, gstr); 1476 return NULL; 1477 } 1478 1479 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL, ameth); 1480 #ifndef OPENSSL_NO_ENGINE 1481 ENGINE_finish(tmpeng); 1482 #endif 1483 if (*pkey_type == EVP_PKEY_RSA) { 1484 if (p != NULL) { 1485 keylen = atol(p + 1); 1486 *pkeylen = keylen; 1487 } else { 1488 keylen = *pkeylen; 1489 } 1490 } else if (p != NULL) { 1491 paramfile = p + 1; 1492 } 1493 } 1494 1495 if (paramfile != NULL) { 1496 pbio = BIO_new_file(paramfile, "r"); 1497 if (pbio == NULL) { 1498 BIO_printf(bio_err, "Can't open parameter file %s\n", paramfile); 1499 return NULL; 1500 } 1501 param = PEM_read_bio_Parameters(pbio, NULL); 1502 1503 if (param == NULL) { 1504 X509 *x; 1505 1506 (void)BIO_reset(pbio); 1507 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL); 1508 if (x != NULL) { 1509 param = X509_get_pubkey(x); 1510 X509_free(x); 1511 } 1512 } 1513 1514 BIO_free(pbio); 1515 1516 if (param == NULL) { 1517 BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile); 1518 return NULL; 1519 } 1520 if (*pkey_type == -1) { 1521 *pkey_type = EVP_PKEY_id(param); 1522 } else if (*pkey_type != EVP_PKEY_base_id(param)) { 1523 BIO_printf(bio_err, "Key Type does not match parameters\n"); 1524 EVP_PKEY_free(param); 1525 return NULL; 1526 } 1527 } 1528 1529 if (palgnam != NULL) { 1530 const EVP_PKEY_ASN1_METHOD *ameth; 1531 ENGINE *tmpeng; 1532 const char *anam; 1533 1534 ameth = EVP_PKEY_asn1_find(&tmpeng, *pkey_type); 1535 if (ameth == NULL) { 1536 BIO_puts(bio_err, "Internal error: can't find key algorithm\n"); 1537 return NULL; 1538 } 1539 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth); 1540 *palgnam = OPENSSL_strdup(anam); 1541 #ifndef OPENSSL_NO_ENGINE 1542 ENGINE_finish(tmpeng); 1543 #endif 1544 } 1545 1546 if (param != NULL) { 1547 gctx = EVP_PKEY_CTX_new(param, keygen_engine); 1548 *pkeylen = EVP_PKEY_bits(param); 1549 EVP_PKEY_free(param); 1550 } else { 1551 gctx = EVP_PKEY_CTX_new_id(*pkey_type, keygen_engine); 1552 } 1553 1554 if (gctx == NULL) { 1555 BIO_puts(bio_err, "Error allocating keygen context\n"); 1556 ERR_print_errors(bio_err); 1557 return NULL; 1558 } 1559 1560 if (EVP_PKEY_keygen_init(gctx) <= 0) { 1561 BIO_puts(bio_err, "Error initializing keygen context\n"); 1562 ERR_print_errors(bio_err); 1563 EVP_PKEY_CTX_free(gctx); 1564 return NULL; 1565 } 1566 #ifndef OPENSSL_NO_RSA 1567 if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) { 1568 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) { 1569 BIO_puts(bio_err, "Error setting RSA keysize\n"); 1570 ERR_print_errors(bio_err); 1571 EVP_PKEY_CTX_free(gctx); 1572 return NULL; 1573 } 1574 } 1575 #endif 1576 1577 return gctx; 1578 } 1579 1580 static int genpkey_cb(EVP_PKEY_CTX *ctx) 1581 { 1582 char c = '*'; 1583 BIO *b = EVP_PKEY_CTX_get_app_data(ctx); 1584 int p; 1585 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0); 1586 if (p == 0) 1587 c = '.'; 1588 if (p == 1) 1589 c = '+'; 1590 if (p == 2) 1591 c = '*'; 1592 if (p == 3) 1593 c = '\n'; 1594 BIO_write(b, &c, 1); 1595 (void)BIO_flush(b); 1596 return 1; 1597 } 1598 1599 static int do_sign_init(EVP_MD_CTX *ctx, EVP_PKEY *pkey, 1600 const EVP_MD *md, STACK_OF(OPENSSL_STRING) *sigopts) 1601 { 1602 EVP_PKEY_CTX *pkctx = NULL; 1603 int i, def_nid; 1604 1605 if (ctx == NULL) 1606 return 0; 1607 /* 1608 * EVP_PKEY_get_default_digest_nid() returns 2 if the digest is mandatory 1609 * for this algorithm. 1610 */ 1611 if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) == 2 1612 && def_nid == NID_undef) { 1613 /* The signing algorithm requires there to be no digest */ 1614 md = NULL; 1615 } 1616 if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey)) 1617 return 0; 1618 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) { 1619 char *sigopt = sk_OPENSSL_STRING_value(sigopts, i); 1620 if (pkey_ctrl_string(pkctx, sigopt) <= 0) { 1621 BIO_printf(bio_err, "parameter error \"%s\"\n", sigopt); 1622 ERR_print_errors(bio_err); 1623 return 0; 1624 } 1625 } 1626 return 1; 1627 } 1628 1629 int do_X509_sign(X509 *x, EVP_PKEY *pkey, const EVP_MD *md, 1630 STACK_OF(OPENSSL_STRING) *sigopts) 1631 { 1632 int rv; 1633 EVP_MD_CTX *mctx = EVP_MD_CTX_new(); 1634 1635 rv = do_sign_init(mctx, pkey, md, sigopts); 1636 if (rv > 0) 1637 rv = X509_sign_ctx(x, mctx); 1638 EVP_MD_CTX_free(mctx); 1639 return rv > 0 ? 1 : 0; 1640 } 1641 1642 int do_X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md, 1643 STACK_OF(OPENSSL_STRING) *sigopts) 1644 { 1645 int rv; 1646 EVP_MD_CTX *mctx = EVP_MD_CTX_new(); 1647 rv = do_sign_init(mctx, pkey, md, sigopts); 1648 if (rv > 0) 1649 rv = X509_REQ_sign_ctx(x, mctx); 1650 EVP_MD_CTX_free(mctx); 1651 return rv > 0 ? 1 : 0; 1652 } 1653 1654 int do_X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const EVP_MD *md, 1655 STACK_OF(OPENSSL_STRING) *sigopts) 1656 { 1657 int rv; 1658 EVP_MD_CTX *mctx = EVP_MD_CTX_new(); 1659 rv = do_sign_init(mctx, pkey, md, sigopts); 1660 if (rv > 0) 1661 rv = X509_CRL_sign_ctx(x, mctx); 1662 EVP_MD_CTX_free(mctx); 1663 return rv > 0 ? 1 : 0; 1664 } 1665