apps/req.c

   1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   2  * All rights reserved.
   3  *
   4  * This package is an SSL implementation written
   5  * by Eric Young (eay@cryptsoft.com).
   6  * The implementation was written so as to conform with Netscapes SSL.
   7  *
   8  * This library is free for commercial and non-commercial use as long as
   9  * the following conditions are aheared to.  The following conditions
  10  * apply to all code found in this distribution, be it the RC4, RSA,
  11  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  12  * included with this distribution is covered by the same copyright terms
  13  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  14  *
  15  * Copyright remains Eric Young's, and as such any Copyright notices in
  16  * the code are not to be removed.
  17  * If this package is used in a product, Eric Young should be given attribution
  18  * as the author of the parts of the library used.
  19  * This can be in the form of a textual message at program startup or
  20  * in documentation (online or textual) provided with the package.
  21  *
  22  * Redistribution and use in source and binary forms, with or without
  23  * modification, are permitted provided that the following conditions
  24  * are met:
  25  * 1. Redistributions of source code must retain the copyright
  26  *    notice, this list of conditions and the following disclaimer.
  27  * 2. Redistributions in binary form must reproduce the above copyright
  28  *    notice, this list of conditions and the following disclaimer in the
  29  *    documentation and/or other materials provided with the distribution.
  30  * 3. All advertising materials mentioning features or use of this software
  31  *    must display the following acknowledgement:
  32  *    "This product includes cryptographic software written by
  33  *     Eric Young (eay@cryptsoft.com)"
  34  *    The word 'cryptographic' can be left out if the rouines from the library
  35  *    being used are not cryptographic related :-).
  36  * 4. If you include any Windows specific code (or a derivative thereof) from
  37  *    the apps directory (application code) you must include an acknowledgement:
  38  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  50  * SUCH DAMAGE.
  51  *
  52  * The licence and distribution terms for any publically available version or
  53  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  54  * copied and put under another distribution licence
  55  * [including the GNU Public Licence.]
  56  */
  57
  58 #include <stdio.h>
  59 #include <stdlib.h>
  60 #include <time.h>
  61 #include <string.h>
  62 #include "apps.h"
  63 #include <openssl/bio.h>
  64 #include <openssl/evp.h>
  65 #include <openssl/conf.h>
  66 #include <openssl/err.h>
  67 #include <openssl/asn1.h>
  68 #include <openssl/x509.h>
  69 #include <openssl/x509v3.h>
  70 #include <openssl/objects.h>
  71 #include <openssl/pem.h>
  72 #include <openssl/bn.h>
  73 #ifndef OPENSSL_NO_RSA
  74 # include <openssl/rsa.h>
  75 #endif
  76 #ifndef OPENSSL_NO_DSA
  77 # include <openssl/dsa.h>
  78 #endif
  79
  80 #define SECTION         "req"
  81
  82 #define BITS            "default_bits"
  83 #define KEYFILE         "default_keyfile"
  84 #define PROMPT          "prompt"
  85 #define DISTINGUISHED_NAME      "distinguished_name"
  86 #define ATTRIBUTES      "attributes"
  87 #define V3_EXTENSIONS   "x509_extensions"
  88 #define REQ_EXTENSIONS  "req_extensions"
  89 #define STRING_MASK     "string_mask"
  90 #define UTF8_IN         "utf8"
  91
  92 #define DEFAULT_KEY_LENGTH      512
  93 #define MIN_KEY_LENGTH          384
  94
  95 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *dn, int mutlirdn,
  96                     int attribs, unsigned long chtype);
  97 static int build_subject(X509_REQ *req, char *subj, unsigned long chtype,
  98                          int multirdn);
  99 static int prompt_info(X509_REQ *req,
 100                        STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
 101                        STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect,
 102                        int attribs, unsigned long chtype);
 103 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
 104                      STACK_OF(CONF_VALUE) *attr, int attribs,
 105                      unsigned long chtype);
 106 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
 107                                 char *value, int nid, int n_min, int n_max,
 108                                 unsigned long chtype);
 109 static int add_DN_object(X509_NAME *n, char *text, const char *def,
 110                          char *value, int nid, int n_min, int n_max,
 111                          unsigned long chtype, int mval);
 112 static int genpkey_cb(EVP_PKEY_CTX *ctx);
 113 static int req_check_len(int len, int n_min, int n_max);
 114 static int check_end(const char *str, const char *end);
 115 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
 116                                     int *pkey_type, long *pkeylen,
 117                                     char **palgnam, ENGINE *keygen_engine);
 118 static CONF *req_conf = NULL;
 119 static int batch = 0;
 120
 121 typedef enum OPTION_choice {
 122     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
 123     OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_KEYGEN_ENGINE, OPT_KEY,
 124     OPT_PUBKEY, OPT_NEW, OPT_CONFIG, OPT_KEYFORM, OPT_IN, OPT_OUT,
 125     OPT_KEYOUT, OPT_PASSIN, OPT_PASSOUT, OPT_RAND, OPT_NEWKEY,
 126     OPT_PKEYOPT, OPT_SIGOPT, OPT_BATCH, OPT_NEWHDR, OPT_MODULUS,
 127     OPT_VERIFY, OPT_NODES, OPT_NOOUT, OPT_VERBOSE, OPT_UTF8,
 128     OPT_NAMEOPT, OPT_REQOPT, OPT_SUBJECT, OPT_TEXT, OPT_X509,
 129     OPT_ASN1_KLUDGE, OPT_NO_ASN1_KLUDGE, OPT_MULTIVALUE_RDN,
 130     OPT_DAYS, OPT_SET_SERIAL, OPT_EXTENSIONS, OPT_REQEXTS, OPT_MD
 131 } OPTION_CHOICE;
 132
 133 OPTIONS req_options[] = {
 134     {"help", OPT_HELP, '-', "Display this summary"},
 135     {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
 136     {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
 137     {"in", OPT_IN, '<', "Input file"},
 138     {"out", OPT_OUT, '>', "Output file"},
 139     {"key", OPT_KEY, '<', "Use the private key contained in file"},
 140     {"keyform", OPT_KEYFORM, 'F', "Key file format"},
 141     {"pubkey", OPT_PUBKEY, '-', "Output public key"},
 142     {"new", OPT_NEW, '-', "New request"},
 143     {"config", OPT_CONFIG, '<', "Request template file"},
 144     {"keyout", OPT_KEYOUT, '>', "File to send the key to"},
 145     {"passin", OPT_PASSIN, 's', "Private key password source"},
 146     {"passout", OPT_PASSOUT, 's'},
 147     {"rand", OPT_RAND, 's',
 148      "Load the file(s) into the random number generator"},
 149     {"newkey", OPT_NEWKEY, 's', "Specify as type:bits"},
 150     {"pkeyopt", OPT_PKEYOPT, 's'},
 151     {"sigopt", OPT_SIGOPT, 's'},
 152     {"batch", OPT_BATCH, '-',
 153      "Do not ask anything during request generation"},
 154     {"newhdr", OPT_NEWHDR, '-', "Output \"NEW\" in the header lines"},
 155     {"modulus", OPT_MODULUS, '-', "RSA modulus"},
 156     {"verify", OPT_VERIFY, '-', "Verify signature on REQ"},
 157     {"nodes", OPT_NODES, '-', "Don't encrypt the output key"},
 158     {"noout", OPT_NOOUT, '-', "Do not output REQ"},
 159     {"verbose", OPT_VERBOSE, '-'},
 160     {"utf8", OPT_UTF8, '-', "Input characters are UTF8 (default ASCII)"},
 161     {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
 162     {"reqopt", OPT_REQOPT, 's', "Various request text options"},
 163     {"text", OPT_TEXT, '-', "Text form of request"},
 164     {"x509", OPT_X509, '-',
 165      "Output a x509 structure instead of a cert request"},
 166     {"asn1-kludge", OPT_ASN1_KLUDGE, '-',
 167      "Output the request in a format that is wrong"},
 168     {OPT_MORE_STR, 1, 1, "(Required by some CA's)"},
 169     {"no-asn1-kludge", OPT_NO_ASN1_KLUDGE, '-'},
 170     {"subject", OPT_SUBJECT, 's', "Output the request's subject"},
 171     {"multivalue-rdn", OPT_MULTIVALUE_RDN, '-',
 172      "Enable support for multivalued RDNs"},
 173     {"days", OPT_DAYS, 'p', "Number of days cert is valid for"},
 174     {"set-serial", OPT_SET_SERIAL, 'p', "Serial number to use"},
 175     {"extensions", OPT_EXTENSIONS, 's',
 176      "Cert extension section (override value in config file)"},
 177     {"reqexts", OPT_REQEXTS, 's',
 178      "Request extension section (override value in config file)"},
 179 #ifndef OPENSSL_NO_ENGINE
 180     {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
 181     {"keygen_engine", OPT_KEYGEN_ENGINE, 's'},
 182 #endif
 183     {"", OPT_MD, '-', "Any supported digest"},
 184     {NULL}
 185 };
 186
 187 int req_main(int argc, char **argv)
 188 {
 189     ASN1_INTEGER *serial = NULL;
 190     BIO *in = NULL, *out = NULL;
 191     ENGINE *e = NULL, *gen_eng = NULL;
 192     EVP_PKEY *pkey = NULL;
 193     EVP_PKEY_CTX *genctx = NULL;
 194     STACK_OF(OPENSSL_STRING) *pkeyopts = NULL, *sigopts = NULL;
 195     X509 *x509ss = NULL;
 196     X509_REQ *req = NULL;
 197     const EVP_CIPHER *cipher = NULL;
 198     const EVP_MD *md_alg = NULL, *digest = NULL;
 199     char *extensions = NULL, *infile = NULL;
 200     char *outfile = NULL, *keyfile = NULL, *inrand = NULL;
 201     char *keyalgstr = NULL, *p, *prog, *passargin = NULL, *passargout = NULL;
 202     char *passin = NULL, *passout = NULL, *req_exts = NULL, *subj = NULL;
 203     char *template = NULL, *keyout = NULL;
 204     const char *keyalg = NULL;
 205     OPTION_CHOICE o;
 206     int ret = 1, x509 = 0, days = 30, i = 0, newreq = 0, verbose =
 207         0, pkey_type = -1;
 208     int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyform = FORMAT_PEM;
 209     int modulus = 0, multirdn = 0, verify = 0, noout = 0, text = 0;
 210     int nodes = 0, kludge = 0, newhdr = 0, subject = 0, pubkey = 0;
 211     long newkey = -1;
 212     unsigned long chtype = MBSTRING_ASC, nmflag = 0, reqflag = 0;
 213
 214 #ifndef OPENSSL_NO_DES
 215     cipher = EVP_des_ede3_cbc();
 216 #endif
 217
 218     prog = opt_init(argc, argv, req_options);
 219     while ((o = opt_next()) != OPT_EOF) {
 220         switch (o) {
 221         case OPT_EOF:
 222         case OPT_ERR:
 223  opthelp:
 224             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 225             goto end;
 226         case OPT_HELP:
 227             opt_help(req_options);
 228             ret = 0;
 229             goto end;
 230         case OPT_INFORM:
 231             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
 232                 goto opthelp;
 233             break;
 234         case OPT_OUTFORM:
 235             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
 236                 goto opthelp;
 237             break;
 238         case OPT_ENGINE:
 239             (void)setup_engine(opt_arg(), 0);
 240             break;
 241         case OPT_KEYGEN_ENGINE:
 242 #ifndef OPENSSL_NO_ENGINE
 243             gen_eng = ENGINE_by_id(opt_arg());
 244             if (gen_eng == NULL) {
 245                 BIO_printf(bio_err, "Can't find keygen engine %s\n", *argv);
 246                 goto opthelp;
 247             }
 248 #endif
 249             break;
 250         case OPT_KEY:
 251             keyfile = opt_arg();
 252             break;
 253         case OPT_PUBKEY:
 254             pubkey = 1;
 255             break;
 256         case OPT_NEW:
 257             newreq = 1;
 258             break;
 259         case OPT_CONFIG:
 260             template = opt_arg();
 261             break;
 262         case OPT_KEYFORM:
 263             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &keyform))
 264                 goto opthelp;
 265             break;
 266         case OPT_IN:
 267             infile = opt_arg();
 268             break;
 269         case OPT_OUT:
 270             outfile = opt_arg();
 271             break;
 272         case OPT_KEYOUT:
 273             keyout = opt_arg();
 274             break;
 275         case OPT_PASSIN:
 276             passargin = opt_arg();
 277             break;
 278         case OPT_PASSOUT:
 279             passargout = opt_arg();
 280             break;
 281         case OPT_RAND:
 282             inrand = opt_arg();
 283             break;
 284         case OPT_NEWKEY:
 285             keyalg = opt_arg();
 286             newreq = 1;
 287             break;
 288         case OPT_PKEYOPT:
 289             if (!pkeyopts)
 290                 pkeyopts = sk_OPENSSL_STRING_new_null();
 291             if (!pkeyopts || !sk_OPENSSL_STRING_push(pkeyopts, opt_arg()))
 292                 goto opthelp;
 293             break;
 294         case OPT_SIGOPT:
 295             if (!sigopts)
 296                 sigopts = sk_OPENSSL_STRING_new_null();
 297             if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
 298                 goto opthelp;
 299             break;
 300         case OPT_BATCH:
 301             batch = 1;
 302             break;
 303         case OPT_NEWHDR:
 304             newhdr = 1;
 305             break;
 306         case OPT_MODULUS:
 307             modulus = 1;
 308             break;
 309         case OPT_VERIFY:
 310             verify = 1;
 311             break;
 312         case OPT_NODES:
 313             nodes = 1;
 314             break;
 315         case OPT_NOOUT:
 316             noout = 1;
 317             break;
 318         case OPT_VERBOSE:
 319             verbose = 1;
 320             break;
 321         case OPT_UTF8:
 322             chtype = MBSTRING_UTF8;
 323             break;
 324         case OPT_NAMEOPT:
 325             if (!set_name_ex(&nmflag, opt_arg()))
 326                 goto opthelp;
 327             break;
 328         case OPT_REQOPT:
 329             if (!set_cert_ex(&reqflag, opt_arg()))
 330                 goto opthelp;
 331             break;
 332         case OPT_TEXT:
 333             text = 1;
 334             break;
 335         case OPT_X509:
 336             x509 = 1;
 337             break;
 338         case OPT_ASN1_KLUDGE:
 339             kludge = 1;
 340             break;
 341         case OPT_NO_ASN1_KLUDGE:
 342             kludge = 0;
 343             break;
 344             multirdn = 1;
 345         case OPT_DAYS:
 346             days = atoi(opt_arg());
 347             break;
 348         case OPT_SET_SERIAL:
 349             serial = s2i_ASN1_INTEGER(NULL, opt_arg());
 350             if (serial == NULL)
 351                 goto opthelp;
 352             break;
 353         case OPT_SUBJECT:
 354             subj = opt_arg();
 355             break;
 356         case OPT_MULTIVALUE_RDN:
 357             multirdn = 1;
 358             break;
 359         case OPT_EXTENSIONS:
 360             extensions = opt_arg();
 361             break;
 362         case OPT_REQEXTS:
 363             req_exts = opt_arg();
 364             break;
 365         case OPT_MD:
 366             if (!opt_md(opt_unknown(), &md_alg))
 367                 goto opthelp;
 368             digest = md_alg;
 369             break;
 370         }
 371     }
 372     argc = opt_num_rest();
 373     argv = opt_rest();
 374
 375     if (!app_passwd(passargin, passargout, &passin, &passout)) {
 376         BIO_printf(bio_err, "Error getting passwords\n");
 377         goto end;
 378     }
 379
 380     if (template != NULL) {
 381         long errline = -1;
 382
 383         if (verbose)
 384             BIO_printf(bio_err, "Using configuration from %s\n", template);
 385         req_conf = NCONF_new(NULL);
 386         i = NCONF_load(req_conf, template, &errline);
 387         if (i == 0) {
 388             BIO_printf(bio_err, "error on line %ld of %s\n", errline,
 389                        template);
 390             goto end;
 391         }
 392     } else {
 393         req_conf = config;
 394
 395         if (req_conf == NULL) {
 396             BIO_printf(bio_err, "Unable to load config info from %s\n",
 397                        default_config_file);
 398             if (newreq)
 399                 goto end;
 400         } else if (verbose)
 401             BIO_printf(bio_err, "Using configuration from %s\n",
 402                        default_config_file);
 403     }
 404
 405     if (req_conf != NULL) {
 406         p = NCONF_get_string(req_conf, NULL, "oid_file");
 407         if (p == NULL)
 408             ERR_clear_error();
 409         if (p != NULL) {
 410             BIO *oid_bio;
 411
 412             oid_bio = BIO_new_file(p, "r");
 413             if (oid_bio == NULL) {
 414                 /*-
 415                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
 416                 ERR_print_errors(bio_err);
 417                 */
 418             } else {
 419                 OBJ_create_objects(oid_bio);
 420                 BIO_free(oid_bio);
 421             }
 422         }
 423     }
 424     if (!add_oid_section(req_conf))
 425         goto end;
 426
 427     if (md_alg == NULL) {
 428         p = NCONF_get_string(req_conf, SECTION, "default_md");
 429         if (p == NULL)
 430             ERR_clear_error();
 431         else {
 432             if (!opt_md(p, &md_alg))
 433                 goto opthelp;
 434             digest = md_alg;
 435         }
 436     }
 437
 438     if (!extensions) {
 439         extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
 440         if (!extensions)
 441             ERR_clear_error();
 442     }
 443     if (extensions) {
 444         /* Check syntax of file */
 445         X509V3_CTX ctx;
 446         X509V3_set_ctx_test(&ctx);
 447         X509V3_set_nconf(&ctx, req_conf);
 448         if (!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) {
 449             BIO_printf(bio_err,
 450                        "Error Loading extension section %s\n", extensions);
 451             goto end;
 452         }
 453     }
 454
 455     if (!passin) {
 456         passin = NCONF_get_string(req_conf, SECTION, "input_password");
 457         if (!passin)
 458             ERR_clear_error();
 459     }
 460
 461     if (!passout) {
 462         passout = NCONF_get_string(req_conf, SECTION, "output_password");
 463         if (!passout)
 464             ERR_clear_error();
 465     }
 466
 467     p = NCONF_get_string(req_conf, SECTION, STRING_MASK);
 468     if (!p)
 469         ERR_clear_error();
 470
 471     if (p && !ASN1_STRING_set_default_mask_asc(p)) {
 472         BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
 473         goto end;
 474     }
 475
 476     if (chtype != MBSTRING_UTF8) {
 477         p = NCONF_get_string(req_conf, SECTION, UTF8_IN);
 478         if (!p)
 479             ERR_clear_error();
 480         else if (!strcmp(p, "yes"))
 481             chtype = MBSTRING_UTF8;
 482     }
 483
 484     if (!req_exts) {
 485         req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
 486         if (!req_exts)
 487             ERR_clear_error();
 488     }
 489     if (req_exts) {
 490         /* Check syntax of file */
 491         X509V3_CTX ctx;
 492         X509V3_set_ctx_test(&ctx);
 493         X509V3_set_nconf(&ctx, req_conf);
 494         if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) {
 495             BIO_printf(bio_err,
 496                        "Error Loading request extension section %s\n",
 497                        req_exts);
 498             goto end;
 499         }
 500     }
 501
 502     if (keyfile != NULL) {
 503         pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key");
 504         if (!pkey) {
 505             /* load_key() has already printed an appropriate message */
 506             goto end;
 507         } else {
 508             char *randfile = NCONF_get_string(req_conf, SECTION, "RANDFILE");
 509             if (randfile == NULL)
 510                 ERR_clear_error();
 511             app_RAND_load_file(randfile, 0);
 512         }
 513     }
 514
 515     if (newreq && (pkey == NULL)) {
 516         char *randfile = NCONF_get_string(req_conf, SECTION, "RANDFILE");
 517         if (randfile == NULL)
 518             ERR_clear_error();
 519         app_RAND_load_file(randfile, 0);
 520         if (inrand)
 521             app_RAND_load_files(inrand);
 522
 523         if (!NCONF_get_number(req_conf, SECTION, BITS, &newkey)) {
 524             newkey = DEFAULT_KEY_LENGTH;
 525         }
 526
 527         if (keyalg) {
 528             genctx = set_keygen_ctx(keyalg, &pkey_type, &newkey,
 529                                     &keyalgstr, gen_eng);
 530             if (!genctx)
 531                 goto end;
 532         }
 533
 534         if (newkey < MIN_KEY_LENGTH
 535             && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) {
 536             BIO_printf(bio_err, "private key length is too short,\n");
 537             BIO_printf(bio_err, "it needs to be at least %d bits, not %ld\n",
 538                        MIN_KEY_LENGTH, newkey);
 539             goto end;
 540         }
 541
 542         if (!genctx) {
 543             genctx = set_keygen_ctx(NULL, &pkey_type, &newkey,
 544                                     &keyalgstr, gen_eng);
 545             if (!genctx)
 546                 goto end;
 547         }
 548
 549         if (pkeyopts) {
 550             char *genopt;
 551             for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) {
 552                 genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
 553                 if (pkey_ctrl_string(genctx, genopt) <= 0) {
 554                     BIO_printf(bio_err, "parameter error \"%s\"\n", genopt);
 555                     ERR_print_errors(bio_err);
 556                     goto end;
 557                 }
 558             }
 559         }
 560
 561         BIO_printf(bio_err, "Generating a %ld bit %s private key\n",
 562                    newkey, keyalgstr);
 563
 564         EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
 565         EVP_PKEY_CTX_set_app_data(genctx, bio_err);
 566
 567         if (EVP_PKEY_keygen(genctx, &pkey) <= 0) {
 568             BIO_puts(bio_err, "Error Generating Key\n");
 569             goto end;
 570         }
 571
 572         EVP_PKEY_CTX_free(genctx);
 573         genctx = NULL;
 574
 575         app_RAND_write_file(randfile);
 576
 577         if (keyout == NULL) {
 578             keyout = NCONF_get_string(req_conf, SECTION, KEYFILE);
 579             if (keyout == NULL)
 580                 ERR_clear_error();
 581         }
 582
 583         if (keyout == NULL)
 584             BIO_printf(bio_err, "writing new private key to stdout\n");
 585         else
 586             BIO_printf(bio_err, "writing new private key to '%s'\n", keyout);
 587         out = bio_open_default(keyout, "w");
 588         if (out == NULL)
 589             goto end;
 590
 591         p = NCONF_get_string(req_conf, SECTION, "encrypt_rsa_key");
 592         if (p == NULL) {
 593             ERR_clear_error();
 594             p = NCONF_get_string(req_conf, SECTION, "encrypt_key");
 595             if (p == NULL)
 596                 ERR_clear_error();
 597         }
 598         if ((p != NULL) && (strcmp(p, "no") == 0))
 599             cipher = NULL;
 600         if (nodes)
 601             cipher = NULL;
 602
 603         i = 0;
 604  loop:
 605         if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
 606                                       NULL, 0, NULL, passout)) {
 607             if ((ERR_GET_REASON(ERR_peek_error()) ==
 608                  PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
 609                 ERR_clear_error();
 610                 i++;
 611                 goto loop;
 612             }
 613             goto end;
 614         }
 615         BIO_printf(bio_err, "-----\n");
 616     }
 617
 618     if (!newreq) {
 619         /*
 620          * Since we are using a pre-existing certificate request, the kludge
 621          * 'format' info should not be changed.
 622          */
 623         kludge = -1;
 624         in = bio_open_default(infile, RB(informat));
 625         if (in == NULL)
 626             goto end;
 627
 628         if (informat == FORMAT_ASN1)
 629             req = d2i_X509_REQ_bio(in, NULL);
 630         else
 631             req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
 632         if (req == NULL) {
 633             BIO_printf(bio_err, "unable to load X509 request\n");
 634             goto end;
 635         }
 636     }
 637
 638     if (newreq || x509) {
 639         if (pkey == NULL) {
 640             BIO_printf(bio_err, "you need to specify a private key\n");
 641             goto end;
 642         }
 643
 644         if (req == NULL) {
 645             req = X509_REQ_new();
 646             if (req == NULL) {
 647                 goto end;
 648             }
 649
 650             i = make_REQ(req, pkey, subj, multirdn, !x509, chtype);
 651             subj = NULL;        /* done processing '-subj' option */
 652             if ((kludge > 0)
 653                 && !sk_X509_ATTRIBUTE_num(req->req_info->attributes)) {
 654                 sk_X509_ATTRIBUTE_free(req->req_info->attributes);
 655                 req->req_info->attributes = NULL;
 656             }
 657             if (!i) {
 658                 BIO_printf(bio_err, "problems making Certificate Request\n");
 659                 goto end;
 660             }
 661         }
 662         if (x509) {
 663             EVP_PKEY *tmppkey;
 664             X509V3_CTX ext_ctx;
 665             if ((x509ss = X509_new()) == NULL)
 666                 goto end;
 667
 668             /* Set version to V3 */
 669             if (extensions && !X509_set_version(x509ss, 2))
 670                 goto end;
 671             if (serial) {
 672                 if (!X509_set_serialNumber(x509ss, serial))
 673                     goto end;
 674             } else {
 675                 if (!rand_serial(NULL, X509_get_serialNumber(x509ss)))
 676                     goto end;
 677             }
 678
 679             if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req)))
 680                 goto end;
 681             if (!X509_gmtime_adj(X509_get_notBefore(x509ss), 0))
 682                 goto end;
 683             if (!X509_time_adj_ex(X509_get_notAfter(x509ss), days, 0, NULL))
 684                 goto end;
 685             if (!X509_set_subject_name
 686                 (x509ss, X509_REQ_get_subject_name(req)))
 687                 goto end;
 688             tmppkey = X509_REQ_get_pubkey(req);
 689             if (!tmppkey || !X509_set_pubkey(x509ss, tmppkey))
 690                 goto end;
 691             EVP_PKEY_free(tmppkey);
 692
 693             /* Set up V3 context struct */
 694
 695             X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
 696             X509V3_set_nconf(&ext_ctx, req_conf);
 697
 698             /* Add extensions */
 699             if (extensions && !X509V3_EXT_add_nconf(req_conf,
 700                                                     &ext_ctx, extensions,
 701                                                     x509ss)) {
 702                 BIO_printf(bio_err, "Error Loading extension section %s\n",
 703                            extensions);
 704                 goto end;
 705             }
 706
 707             i = do_X509_sign(x509ss, pkey, digest, sigopts);
 708             if (!i) {
 709                 ERR_print_errors(bio_err);
 710                 goto end;
 711             }
 712         } else {
 713             X509V3_CTX ext_ctx;
 714
 715             /* Set up V3 context struct */
 716
 717             X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
 718             X509V3_set_nconf(&ext_ctx, req_conf);
 719
 720             /* Add extensions */
 721             if (req_exts && !X509V3_EXT_REQ_add_nconf(req_conf,
 722                                                       &ext_ctx, req_exts,
 723                                                       req)) {
 724                 BIO_printf(bio_err, "Error Loading extension section %s\n",
 725                            req_exts);
 726                 goto end;
 727             }
 728             i = do_X509_REQ_sign(req, pkey, digest, sigopts);
 729             if (!i) {
 730                 ERR_print_errors(bio_err);
 731                 goto end;
 732             }
 733         }
 734     }
 735
 736     if (subj && x509) {
 737         BIO_printf(bio_err, "Cannot modify certificate subject\n");
 738         goto end;
 739     }
 740
 741     if (subj && !x509) {
 742         if (verbose) {
 743             BIO_printf(bio_err, "Modifying Request's Subject\n");
 744             print_name(bio_err, "old subject=",
 745                        X509_REQ_get_subject_name(req), nmflag);
 746         }
 747
 748         if (build_subject(req, subj, chtype, multirdn) == 0) {
 749             BIO_printf(bio_err, "ERROR: cannot modify subject\n");
 750             ret = 1;
 751             goto end;
 752         }
 753
 754         req->req_info->enc.modified = 1;
 755
 756         if (verbose) {
 757             print_name(bio_err, "new subject=",
 758                        X509_REQ_get_subject_name(req), nmflag);
 759         }
 760     }
 761
 762     if (verify && !x509) {
 763         int tmp = 0;
 764
 765         if (pkey == NULL) {
 766             pkey = X509_REQ_get_pubkey(req);
 767             tmp = 1;
 768             if (pkey == NULL)
 769                 goto end;
 770         }
 771
 772         i = X509_REQ_verify(req, pkey);
 773         if (tmp) {
 774             EVP_PKEY_free(pkey);
 775             pkey = NULL;
 776         }
 777
 778         if (i < 0) {
 779             goto end;
 780         } else if (i == 0) {
 781             BIO_printf(bio_err, "verify failure\n");
 782             ERR_print_errors(bio_err);
 783         } else                  /* if (i > 0) */
 784             BIO_printf(bio_err, "verify OK\n");
 785     }
 786
 787     if (noout && !text && !modulus && !subject && !pubkey) {
 788         ret = 0;
 789         goto end;
 790     }
 791
 792     out = bio_open_default(outfile,
 793                            keyout != NULL && outfile != NULL &&
 794                            strcmp(keyout, outfile) == 0 ? "a" : "w");
 795     if (out == NULL)
 796         goto end;
 797
 798     if (pubkey) {
 799         EVP_PKEY *tpubkey;
 800         tpubkey = X509_REQ_get_pubkey(req);
 801         if (tpubkey == NULL) {
 802             BIO_printf(bio_err, "Error getting public key\n");
 803             ERR_print_errors(bio_err);
 804             goto end;
 805         }
 806         PEM_write_bio_PUBKEY(out, tpubkey);
 807         EVP_PKEY_free(tpubkey);
 808     }
 809
 810     if (text) {
 811         if (x509)
 812             X509_print_ex(out, x509ss, nmflag, reqflag);
 813         else
 814             X509_REQ_print_ex(out, req, nmflag, reqflag);
 815     }
 816
 817     if (subject) {
 818         if (x509)
 819             print_name(out, "subject=", X509_get_subject_name(x509ss),
 820                        nmflag);
 821         else
 822             print_name(out, "subject=", X509_REQ_get_subject_name(req),
 823                        nmflag);
 824     }
 825
 826     if (modulus) {
 827         EVP_PKEY *tpubkey;
 828
 829         if (x509)
 830             tpubkey = X509_get_pubkey(x509ss);
 831         else
 832             tpubkey = X509_REQ_get_pubkey(req);
 833         if (tpubkey == NULL) {
 834             fprintf(stdout, "Modulus=unavailable\n");
 835             goto end;
 836         }
 837         fprintf(stdout, "Modulus=");
 838 #ifndef OPENSSL_NO_RSA
 839         if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA)
 840             BN_print(out, tpubkey->pkey.rsa->n);
 841         else
 842 #endif
 843             fprintf(stdout, "Wrong Algorithm type");
 844         EVP_PKEY_free(tpubkey);
 845         fprintf(stdout, "\n");
 846     }
 847
 848     if (!noout && !x509) {
 849         if (outformat == FORMAT_ASN1)
 850             i = i2d_X509_REQ_bio(out, req);
 851         else if (newhdr)
 852             i = PEM_write_bio_X509_REQ_NEW(out, req);
 853         else
 854             i = PEM_write_bio_X509_REQ(out, req);
 855         if (!i) {
 856             BIO_printf(bio_err, "unable to write X509 request\n");
 857             goto end;
 858         }
 859     }
 860     if (!noout && x509 && (x509ss != NULL)) {
 861         if (outformat == FORMAT_ASN1)
 862             i = i2d_X509_bio(out, x509ss);
 863         else
 864             i = PEM_write_bio_X509(out, x509ss);
 865         if (!i) {
 866             BIO_printf(bio_err, "unable to write X509 certificate\n");
 867             goto end;
 868         }
 869     }
 870     ret = 0;
 871  end:
 872     if (ret) {
 873         ERR_print_errors(bio_err);
 874     }
 875     if (req_conf != config)
 876         NCONF_free(req_conf);
 877     BIO_free(in);
 878     BIO_free_all(out);
 879     EVP_PKEY_free(pkey);
 880     EVP_PKEY_CTX_free(genctx);
 881     sk_OPENSSL_STRING_free(pkeyopts);
 882     sk_OPENSSL_STRING_free(sigopts);
 883 #ifndef OPENSSL_NO_ENGINE
 884     ENGINE_free(gen_eng);
 885 #endif
 886     OPENSSL_free(keyalgstr);
 887     X509_REQ_free(req);
 888     X509_free(x509ss);
 889     ASN1_INTEGER_free(serial);
 890     OPENSSL_free(passin);
 891     OPENSSL_free(passout);
 892     OBJ_cleanup();
 893     return (ret);
 894 }
 895
 896 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *subj, int multirdn,
 897                     int attribs, unsigned long chtype)
 898 {
 899     int ret = 0, i;
 900     char no_prompt = 0;
 901     STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
 902     char *tmp, *dn_sect, *attr_sect;
 903
 904     tmp = NCONF_get_string(req_conf, SECTION, PROMPT);
 905     if (tmp == NULL)
 906         ERR_clear_error();
 907     if ((tmp != NULL) && !strcmp(tmp, "no"))
 908         no_prompt = 1;
 909
 910     dn_sect = NCONF_get_string(req_conf, SECTION, DISTINGUISHED_NAME);
 911     if (dn_sect == NULL) {
 912         BIO_printf(bio_err, "unable to find '%s' in config\n",
 913                    DISTINGUISHED_NAME);
 914         goto err;
 915     }
 916     dn_sk = NCONF_get_section(req_conf, dn_sect);
 917     if (dn_sk == NULL) {
 918         BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect);
 919         goto err;
 920     }
 921
 922     attr_sect = NCONF_get_string(req_conf, SECTION, ATTRIBUTES);
 923     if (attr_sect == NULL) {
 924         ERR_clear_error();
 925         attr_sk = NULL;
 926     } else {
 927         attr_sk = NCONF_get_section(req_conf, attr_sect);
 928         if (attr_sk == NULL) {
 929             BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect);
 930             goto err;
 931         }
 932     }
 933
 934     /* setup version number */
 935     if (!X509_REQ_set_version(req, 0L))
 936         goto err;               /* version 1 */
 937
 938     if (subj)
 939         i = build_subject(req, subj, chtype, multirdn);
 940     else if (no_prompt)
 941         i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
 942     else
 943         i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs,
 944                         chtype);
 945     if (!i)
 946         goto err;
 947
 948     if (!X509_REQ_set_pubkey(req, pkey))
 949         goto err;
 950
 951     ret = 1;
 952  err:
 953     return (ret);
 954 }
 955
 956 /*
 957  * subject is expected to be in the format /type0=value0/type1=value1/type2=...
 958  * where characters may be escaped by \
 959  */
 960 static int build_subject(X509_REQ *req, char *subject, unsigned long chtype,
 961                          int multirdn)
 962 {
 963     X509_NAME *n;
 964
 965     if (!(n = parse_name(subject, chtype, multirdn)))
 966         return 0;
 967
 968     if (!X509_REQ_set_subject_name(req, n)) {
 969         X509_NAME_free(n);
 970         return 0;
 971     }
 972     X509_NAME_free(n);
 973     return 1;
 974 }
 975
 976 static int prompt_info(X509_REQ *req,
 977                        STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
 978                        STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect,
 979                        int attribs, unsigned long chtype)
 980 {
 981     int i;
 982     char *p, *q;
 983     char buf[100];
 984     int nid, mval;
 985     long n_min, n_max;
 986     char *type, *value;
 987     const char *def;
 988     CONF_VALUE *v;
 989     X509_NAME *subj;
 990     subj = X509_REQ_get_subject_name(req);
 991
 992     if (!batch) {
 993         BIO_printf(bio_err,
 994                    "You are about to be asked to enter information that will be incorporated\n");
 995         BIO_printf(bio_err, "into your certificate request.\n");
 996         BIO_printf(bio_err,
 997                    "What you are about to enter is what is called a Distinguished Name or a DN.\n");
 998         BIO_printf(bio_err,
 999                    "There are quite a few fields but you can leave some blank\n");
1000         BIO_printf(bio_err,
1001                    "For some fields there will be a default value,\n");
1002         BIO_printf(bio_err,
1003                    "If you enter '.', the field will be left blank.\n");
1004         BIO_printf(bio_err, "-----\n");
1005     }
1006
1007     if (sk_CONF_VALUE_num(dn_sk)) {
1008         i = -1;
1009  start:for (;;) {
1010             i++;
1011             if (sk_CONF_VALUE_num(dn_sk) <= i)
1012                 break;
1013
1014             v = sk_CONF_VALUE_value(dn_sk, i);
1015             p = q = NULL;
1016             type = v->name;
1017             if (!check_end(type, "_min") || !check_end(type, "_max") ||
1018                 !check_end(type, "_default") || !check_end(type, "_value"))
1019                 continue;
1020             /*
1021              * Skip past any leading X. X: X, etc to allow for multiple
1022              * instances
1023              */
1024             for (p = v->name; *p; p++)
1025                 if ((*p == ':') || (*p == ',') || (*p == '.')) {
1026                     p++;
1027                     if (*p)
1028                         type = p;
1029                     break;
1030                 }
1031             if (*type == '+') {
1032                 mval = -1;
1033                 type++;
1034             } else
1035                 mval = 0;
1036             /* If OBJ not recognised ignore it */
1037             if ((nid = OBJ_txt2nid(type)) == NID_undef)
1038                 goto start;
1039             if (BIO_snprintf(buf, sizeof buf, "%s_default", v->name)
1040                 >= (int)sizeof(buf)) {
1041                 BIO_printf(bio_err, "Name '%s' too long\n", v->name);
1042                 return 0;
1043             }
1044
1045             if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1046                 ERR_clear_error();
1047                 def = "";
1048             }
1049
1050             BIO_snprintf(buf, sizeof buf, "%s_value", v->name);
1051             if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1052                 ERR_clear_error();
1053                 value = NULL;
1054             }
1055
1056             BIO_snprintf(buf, sizeof buf, "%s_min", v->name);
1057             if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1058                 ERR_clear_error();
1059                 n_min = -1;
1060             }
1061
1062             BIO_snprintf(buf, sizeof buf, "%s_max", v->name);
1063             if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1064                 ERR_clear_error();
1065                 n_max = -1;
1066             }
1067
1068             if (!add_DN_object(subj, v->value, def, value, nid,
1069                                n_min, n_max, chtype, mval))
1070                 return 0;
1071         }
1072         if (X509_NAME_entry_count(subj) == 0) {
1073             BIO_printf(bio_err,
1074                        "error, no objects specified in config file\n");
1075             return 0;
1076         }
1077
1078         if (attribs) {
1079             if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0)
1080                 && (!batch)) {
1081                 BIO_printf(bio_err,
1082                            "\nPlease enter the following 'extra' attributes\n");
1083                 BIO_printf(bio_err,
1084                            "to be sent with your certificate request\n");
1085             }
1086
1087             i = -1;
1088  start2:   for (;;) {
1089                 i++;
1090                 if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i))
1091                     break;
1092
1093                 v = sk_CONF_VALUE_value(attr_sk, i);
1094                 type = v->name;
1095                 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1096                     goto start2;
1097
1098                 if (BIO_snprintf(buf, sizeof buf, "%s_default", type)
1099                     >= (int)sizeof(buf)) {
1100                     BIO_printf(bio_err, "Name '%s' too long\n", v->name);
1101                     return 0;
1102                 }
1103
1104                 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1105                     == NULL) {
1106                     ERR_clear_error();
1107                     def = "";
1108                 }
1109
1110                 BIO_snprintf(buf, sizeof buf, "%s_value", type);
1111                 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1112                     == NULL) {
1113                     ERR_clear_error();
1114                     value = NULL;
1115                 }
1116
1117                 BIO_snprintf(buf, sizeof buf, "%s_min", type);
1118                 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1119                     ERR_clear_error();
1120                     n_min = -1;
1121                 }
1122
1123                 BIO_snprintf(buf, sizeof buf, "%s_max", type);
1124                 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1125                     ERR_clear_error();
1126                     n_max = -1;
1127                 }
1128
1129                 if (!add_attribute_object(req,
1130                                           v->value, def, value, nid, n_min,
1131                                           n_max, chtype))
1132                     return 0;
1133             }
1134         }
1135     } else {
1136         BIO_printf(bio_err, "No template, please set one up.\n");
1137         return 0;
1138     }
1139
1140     return 1;
1141
1142 }
1143
1144 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1145                      STACK_OF(CONF_VALUE) *attr_sk, int attribs,
1146                      unsigned long chtype)
1147 {
1148     int i;
1149     char *p, *q;
1150     char *type;
1151     CONF_VALUE *v;
1152     X509_NAME *subj;
1153
1154     subj = X509_REQ_get_subject_name(req);
1155
1156     for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1157         int mval;
1158         v = sk_CONF_VALUE_value(dn_sk, i);
1159         p = q = NULL;
1160         type = v->name;
1161         /*
1162          * Skip past any leading X. X: X, etc to allow for multiple instances
1163          */
1164         for (p = v->name; *p; p++)
1165 #ifndef CHARSET_EBCDIC
1166             if ((*p == ':') || (*p == ',') || (*p == '.')) {
1167 #else
1168             if ((*p == os_toascii[':']) || (*p == os_toascii[','])
1169                 || (*p == os_toascii['.'])) {
1170 #endif
1171                 p++;
1172                 if (*p)
1173                     type = p;
1174                 break;
1175             }
1176 #ifndef CHARSET_EBCDIC
1177         if (*p == '+')
1178 #else
1179         if (*p == os_toascii['+'])
1180 #endif
1181         {
1182             p++;
1183             mval = -1;
1184         } else
1185             mval = 0;
1186         if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1187                                         (unsigned char *)v->value, -1, -1,
1188                                         mval))
1189             return 0;
1190
1191     }
1192
1193     if (!X509_NAME_entry_count(subj)) {
1194         BIO_printf(bio_err, "error, no objects specified in config file\n");
1195         return 0;
1196     }
1197     if (attribs) {
1198         for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1199             v = sk_CONF_VALUE_value(attr_sk, i);
1200             if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1201                                            (unsigned char *)v->value, -1))
1202                 return 0;
1203         }
1204     }
1205     return 1;
1206 }
1207
1208 static int add_DN_object(X509_NAME *n, char *text, const char *def,
1209                          char *value, int nid, int n_min, int n_max,
1210                          unsigned long chtype, int mval)
1211 {
1212     int i, ret = 0;
1213     char buf[1024];
1214  start:
1215     if (!batch)
1216         BIO_printf(bio_err, "%s [%s]:", text, def);
1217     (void)BIO_flush(bio_err);
1218     if (value != NULL) {
1219         BUF_strlcpy(buf, value, sizeof buf);
1220         BUF_strlcat(buf, "\n", sizeof buf);
1221         BIO_printf(bio_err, "%s\n", value);
1222     } else {
1223         buf[0] = '\0';
1224         if (!batch) {
1225             if (!fgets(buf, sizeof buf, stdin))
1226                 return 0;
1227         } else {
1228             buf[0] = '\n';
1229             buf[1] = '\0';
1230         }
1231     }
1232
1233     if (buf[0] == '\0')
1234         return (0);
1235     else if (buf[0] == '\n') {
1236         if ((def == NULL) || (def[0] == '\0'))
1237             return (1);
1238         BUF_strlcpy(buf, def, sizeof buf);
1239         BUF_strlcat(buf, "\n", sizeof buf);
1240     } else if ((buf[0] == '.') && (buf[1] == '\n'))
1241         return (1);
1242
1243     i = strlen(buf);
1244     if (buf[i - 1] != '\n') {
1245         BIO_printf(bio_err, "weird input :-(\n");
1246         return (0);
1247     }
1248     buf[--i] = '\0';
1249 #ifdef CHARSET_EBCDIC
1250     ebcdic2ascii(buf, buf, i);
1251 #endif
1252     if (!req_check_len(i, n_min, n_max)) {
1253         if (batch || value)
1254             return 0;
1255         goto start;
1256     }
1257
1258     if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1259                                     (unsigned char *)buf, -1, -1, mval))
1260         goto err;
1261     ret = 1;
1262  err:
1263     return (ret);
1264 }
1265
1266 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
1267                                 char *value, int nid, int n_min,
1268                                 int n_max, unsigned long chtype)
1269 {
1270     int i;
1271     static char buf[1024];
1272
1273  start:
1274     if (!batch)
1275         BIO_printf(bio_err, "%s [%s]:", text, def);
1276     (void)BIO_flush(bio_err);
1277     if (value != NULL) {
1278         BUF_strlcpy(buf, value, sizeof buf);
1279         BUF_strlcat(buf, "\n", sizeof buf);
1280         BIO_printf(bio_err, "%s\n", value);
1281     } else {
1282         buf[0] = '\0';
1283         if (!batch) {
1284             if (!fgets(buf, sizeof buf, stdin))
1285                 return 0;
1286         } else {
1287             buf[0] = '\n';
1288             buf[1] = '\0';
1289         }
1290     }
1291
1292     if (buf[0] == '\0')
1293         return (0);
1294     else if (buf[0] == '\n') {
1295         if ((def == NULL) || (def[0] == '\0'))
1296             return (1);
1297         BUF_strlcpy(buf, def, sizeof buf);
1298         BUF_strlcat(buf, "\n", sizeof buf);
1299     } else if ((buf[0] == '.') && (buf[1] == '\n'))
1300         return (1);
1301
1302     i = strlen(buf);
1303     if (buf[i - 1] != '\n') {
1304         BIO_printf(bio_err, "weird input :-(\n");
1305         return (0);
1306     }
1307     buf[--i] = '\0';
1308 #ifdef CHARSET_EBCDIC
1309     ebcdic2ascii(buf, buf, i);
1310 #endif
1311     if (!req_check_len(i, n_min, n_max)) {
1312         if (batch || value)
1313             return 0;
1314         goto start;
1315     }
1316
1317     if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1318                                    (unsigned char *)buf, -1)) {
1319         BIO_printf(bio_err, "Error adding attribute\n");
1320         ERR_print_errors(bio_err);
1321         goto err;
1322     }
1323
1324     return (1);
1325  err:
1326     return (0);
1327 }
1328
1329 static int req_check_len(int len, int n_min, int n_max)
1330 {
1331     if ((n_min > 0) && (len < n_min)) {
1332         BIO_printf(bio_err,
1333                    "string is too short, it needs to be at least %d bytes long\n",
1334                    n_min);
1335         return (0);
1336     }
1337     if ((n_max >= 0) && (len > n_max)) {
1338         BIO_printf(bio_err,
1339                    "string is too long, it needs to be less than  %d bytes long\n",
1340                    n_max);
1341         return (0);
1342     }
1343     return (1);
1344 }
1345
1346 /* Check if the end of a string matches 'end' */
1347 static int check_end(const char *str, const char *end)
1348 {
1349     int elen, slen;
1350     const char *tmp;
1351     elen = strlen(end);
1352     slen = strlen(str);
1353     if (elen > slen)
1354         return 1;
1355     tmp = str + slen - elen;
1356     return strcmp(tmp, end);
1357 }
1358
1359 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
1360                                     int *pkey_type, long *pkeylen,
1361                                     char **palgnam, ENGINE *keygen_engine)
1362 {
1363     EVP_PKEY_CTX *gctx = NULL;
1364     EVP_PKEY *param = NULL;
1365     long keylen = -1;
1366     BIO *pbio = NULL;
1367     const char *paramfile = NULL;
1368
1369     if (gstr == NULL) {
1370         *pkey_type = EVP_PKEY_RSA;
1371         keylen = *pkeylen;
1372     } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1373         *pkey_type = EVP_PKEY_RSA;
1374         keylen = atol(gstr);
1375         *pkeylen = keylen;
1376     } else if (!strncmp(gstr, "param:", 6))
1377         paramfile = gstr + 6;
1378     else {
1379         const char *p = strchr(gstr, ':');
1380         int len;
1381         ENGINE *tmpeng;
1382         const EVP_PKEY_ASN1_METHOD *ameth;
1383
1384         if (p)
1385             len = p - gstr;
1386         else
1387             len = strlen(gstr);
1388         /*
1389          * The lookup of a the string will cover all engines so keep a note
1390          * of the implementation.
1391          */
1392
1393         ameth = EVP_PKEY_asn1_find_str(&tmpeng, gstr, len);
1394
1395         if (!ameth) {
1396             BIO_printf(bio_err, "Unknown algorithm %.*s\n", len, gstr);
1397             return NULL;
1398         }
1399
1400         EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL, ameth);
1401 #ifndef OPENSSL_NO_ENGINE
1402         if (tmpeng)
1403             ENGINE_finish(tmpeng);
1404 #endif
1405         if (*pkey_type == EVP_PKEY_RSA) {
1406             if (p) {
1407                 keylen = atol(p + 1);
1408                 *pkeylen = keylen;
1409             } else
1410                 keylen = *pkeylen;
1411         } else if (p)
1412             paramfile = p + 1;
1413     }
1414
1415     if (paramfile) {
1416         pbio = BIO_new_file(paramfile, "r");
1417         if (!pbio) {
1418             BIO_printf(bio_err, "Can't open parameter file %s\n", paramfile);
1419             return NULL;
1420         }
1421         param = PEM_read_bio_Parameters(pbio, NULL);
1422
1423         if (!param) {
1424             X509 *x;
1425             (void)BIO_reset(pbio);
1426             x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1427             if (x) {
1428                 param = X509_get_pubkey(x);
1429                 X509_free(x);
1430             }
1431         }
1432
1433         BIO_free(pbio);
1434
1435         if (!param) {
1436             BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile);
1437             return NULL;
1438         }
1439         if (*pkey_type == -1)
1440             *pkey_type = EVP_PKEY_id(param);
1441         else if (*pkey_type != EVP_PKEY_base_id(param)) {
1442             BIO_printf(bio_err, "Key Type does not match parameters\n");
1443             EVP_PKEY_free(param);
1444             return NULL;
1445         }
1446     }
1447
1448     if (palgnam) {
1449         const EVP_PKEY_ASN1_METHOD *ameth;
1450         ENGINE *tmpeng;
1451         const char *anam;
1452         ameth = EVP_PKEY_asn1_find(&tmpeng, *pkey_type);
1453         if (!ameth) {
1454             BIO_puts(bio_err, "Internal error: can't find key algorithm\n");
1455             return NULL;
1456         }
1457         EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1458         *palgnam = BUF_strdup(anam);
1459 #ifndef OPENSSL_NO_ENGINE
1460         if (tmpeng)
1461             ENGINE_finish(tmpeng);
1462 #endif
1463     }
1464
1465     if (param) {
1466         gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1467         *pkeylen = EVP_PKEY_bits(param);
1468         EVP_PKEY_free(param);
1469     } else
1470         gctx = EVP_PKEY_CTX_new_id(*pkey_type, keygen_engine);
1471
1472     if (!gctx) {
1473         BIO_puts(bio_err, "Error allocating keygen context\n");
1474         ERR_print_errors(bio_err);
1475         return NULL;
1476     }
1477
1478     if (EVP_PKEY_keygen_init(gctx) <= 0) {
1479         BIO_puts(bio_err, "Error initializing keygen context\n");
1480         ERR_print_errors(bio_err);
1481         return NULL;
1482     }
1483 #ifndef OPENSSL_NO_RSA
1484     if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) {
1485         if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) {
1486             BIO_puts(bio_err, "Error setting RSA keysize\n");
1487             ERR_print_errors(bio_err);
1488             EVP_PKEY_CTX_free(gctx);
1489             return NULL;
1490         }
1491     }
1492 #endif
1493
1494     return gctx;
1495 }
1496
1497 static int genpkey_cb(EVP_PKEY_CTX *ctx)
1498 {
1499     char c = '*';
1500     BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1501     int p;
1502     p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1503     if (p == 0)
1504         c = '.';
1505     if (p == 1)
1506         c = '+';
1507     if (p == 2)
1508         c = '*';
1509     if (p == 3)
1510         c = '\n';
1511     BIO_write(b, &c, 1);
1512     (void)BIO_flush(b);
1513     return 1;
1514 }
1515
1516 static int do_sign_init(EVP_MD_CTX *ctx, EVP_PKEY *pkey,
1517                         const EVP_MD *md, STACK_OF(OPENSSL_STRING) *sigopts)
1518 {
1519     EVP_PKEY_CTX *pkctx = NULL;
1520     int i;
1521
1522     EVP_MD_CTX_init(ctx);
1523     if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey))
1524         return 0;
1525     for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
1526         char *sigopt = sk_OPENSSL_STRING_value(sigopts, i);
1527         if (pkey_ctrl_string(pkctx, sigopt) <= 0) {
1528             BIO_printf(bio_err, "parameter error \"%s\"\n", sigopt);
1529             ERR_print_errors(bio_err);
1530             return 0;
1531         }
1532     }
1533     return 1;
1534 }
1535
1536 int do_X509_sign(X509 *x, EVP_PKEY *pkey, const EVP_MD *md,
1537                  STACK_OF(OPENSSL_STRING) *sigopts)
1538 {
1539     int rv;
1540     EVP_MD_CTX mctx;
1541
1542     EVP_MD_CTX_init(&mctx);
1543     rv = do_sign_init(&mctx, pkey, md, sigopts);
1544     if (rv > 0)
1545         rv = X509_sign_ctx(x, &mctx);
1546     EVP_MD_CTX_cleanup(&mctx);
1547     return rv > 0 ? 1 : 0;
1548 }
1549
1550 int do_X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md,
1551                      STACK_OF(OPENSSL_STRING) *sigopts)
1552 {
1553     int rv;
1554     EVP_MD_CTX mctx;
1555
1556     EVP_MD_CTX_init(&mctx);
1557     rv = do_sign_init(&mctx, pkey, md, sigopts);
1558     if (rv > 0)
1559         rv = X509_REQ_sign_ctx(x, &mctx);
1560     EVP_MD_CTX_cleanup(&mctx);
1561     return rv > 0 ? 1 : 0;
1562 }
1563
1564 int do_X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const EVP_MD *md,
1565                      STACK_OF(OPENSSL_STRING) *sigopts)
1566 {
1567     int rv;
1568     EVP_MD_CTX mctx;
1569
1570     EVP_MD_CTX_init(&mctx);
1571     rv = do_sign_init(&mctx, pkey, md, sigopts);
1572     if (rv > 0)
1573         rv = X509_CRL_sign_ctx(x, &mctx);
1574     EVP_MD_CTX_cleanup(&mctx);
1575     return rv > 0 ? 1 : 0;
1576 }