apps/req.c

   1 /*
   2  * Copyright 1995-2016 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 "apps.h"
  15 #include <openssl/bio.h>
  16 #include <openssl/evp.h>
  17 #include <openssl/conf.h>
  18 #include <openssl/err.h>
  19 #include <openssl/asn1.h>
  20 #include <openssl/x509.h>
  21 #include <openssl/x509v3.h>
  22 #include <openssl/objects.h>
  23 #include <openssl/pem.h>
  24 #include <openssl/bn.h>
  25 #ifndef OPENSSL_NO_RSA
  26 # include <openssl/rsa.h>
  27 #endif
  28 #ifndef OPENSSL_NO_DSA
  29 # include <openssl/dsa.h>
  30 #endif
  31
  32 #define SECTION         "req"
  33
  34 #define BITS            "default_bits"
  35 #define KEYFILE         "default_keyfile"
  36 #define PROMPT          "prompt"
  37 #define DISTINGUISHED_NAME      "distinguished_name"
  38 #define ATTRIBUTES      "attributes"
  39 #define V3_EXTENSIONS   "x509_extensions"
  40 #define REQ_EXTENSIONS  "req_extensions"
  41 #define STRING_MASK     "string_mask"
  42 #define UTF8_IN         "utf8"
  43
  44 #define DEFAULT_KEY_LENGTH      2048
  45 #define MIN_KEY_LENGTH          512
  46
  47 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *dn, int mutlirdn,
  48                     int attribs, unsigned long chtype);
  49 static int build_subject(X509_REQ *req, const char *subj, unsigned long chtype,
  50                          int multirdn);
  51 static int prompt_info(X509_REQ *req,
  52                        STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
  53                        STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
  54                        int attribs, unsigned long chtype);
  55 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
  56                      STACK_OF(CONF_VALUE) *attr, int attribs,
  57                      unsigned long chtype);
  58 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
  59                                 char *value, int nid, int n_min, int n_max,
  60                                 unsigned long chtype);
  61 static int add_DN_object(X509_NAME *n, char *text, const char *def,
  62                          char *value, int nid, int n_min, int n_max,
  63                          unsigned long chtype, int mval);
  64 static int genpkey_cb(EVP_PKEY_CTX *ctx);
  65 static int req_check_len(int len, int n_min, int n_max);
  66 static int check_end(const char *str, const char *end);
  67 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
  68                                     int *pkey_type, long *pkeylen,
  69                                     char **palgnam, ENGINE *keygen_engine);
  70 static CONF *req_conf = NULL;
  71 static int batch = 0;
  72
  73 typedef enum OPTION_choice {
  74     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
  75     OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_KEYGEN_ENGINE, OPT_KEY,
  76     OPT_PUBKEY, OPT_NEW, OPT_CONFIG, OPT_KEYFORM, OPT_IN, OPT_OUT,
  77     OPT_KEYOUT, OPT_PASSIN, OPT_PASSOUT, OPT_RAND, OPT_NEWKEY,
  78     OPT_PKEYOPT, OPT_SIGOPT, OPT_BATCH, OPT_NEWHDR, OPT_MODULUS,
  79     OPT_VERIFY, OPT_NODES, OPT_NOOUT, OPT_VERBOSE, OPT_UTF8,
  80     OPT_NAMEOPT, OPT_REQOPT, OPT_SUBJ, OPT_SUBJECT, OPT_TEXT, OPT_X509,
  81     OPT_MULTIVALUE_RDN, OPT_DAYS, OPT_SET_SERIAL, OPT_EXTENSIONS,
  82     OPT_REQEXTS, OPT_MD
  83 } OPTION_CHOICE;
  84
  85 OPTIONS req_options[] = {
  86     {"help", OPT_HELP, '-', "Display this summary"},
  87     {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
  88     {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
  89     {"in", OPT_IN, '<', "Input file"},
  90     {"out", OPT_OUT, '>', "Output file"},
  91     {"key", OPT_KEY, 's', "Private key to use"},
  92     {"keyform", OPT_KEYFORM, 'f', "Key file format"},
  93     {"pubkey", OPT_PUBKEY, '-', "Output public key"},
  94     {"new", OPT_NEW, '-', "New request"},
  95     {"config", OPT_CONFIG, '<', "Request template file"},
  96     {"keyout", OPT_KEYOUT, '>', "File to send the key to"},
  97     {"passin", OPT_PASSIN, 's', "Private key password source"},
  98     {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
  99     {"rand", OPT_RAND, 's',
 100      "Load the file(s) into the random number generator"},
 101     {"newkey", OPT_NEWKEY, 's', "Specify as type:bits"},
 102     {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
 103     {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"},
 104     {"batch", OPT_BATCH, '-',
 105      "Do not ask anything during request generation"},
 106     {"newhdr", OPT_NEWHDR, '-', "Output \"NEW\" in the header lines"},
 107     {"modulus", OPT_MODULUS, '-', "RSA modulus"},
 108     {"verify", OPT_VERIFY, '-', "Verify signature on REQ"},
 109     {"nodes", OPT_NODES, '-', "Don't encrypt the output key"},
 110     {"noout", OPT_NOOUT, '-', "Do not output REQ"},
 111     {"verbose", OPT_VERBOSE, '-', "Verbose output"},
 112     {"utf8", OPT_UTF8, '-', "Input characters are UTF8 (default ASCII)"},
 113     {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
 114     {"reqopt", OPT_REQOPT, 's', "Various request text options"},
 115     {"text", OPT_TEXT, '-', "Text form of request"},
 116     {"x509", OPT_X509, '-',
 117      "Output a x509 structure instead of a cert request"},
 118     {OPT_MORE_STR, 1, 1, "(Required by some CA's)"},
 119     {"subj", OPT_SUBJ, 's', "Set or modify request subject"},
 120     {"subject", OPT_SUBJECT, '-', "Output the request's subject"},
 121     {"multivalue-rdn", OPT_MULTIVALUE_RDN, '-',
 122      "Enable support for multivalued RDNs"},
 123     {"days", OPT_DAYS, 'p', "Number of days cert is valid for"},
 124     {"set_serial", OPT_SET_SERIAL, 'p', "Serial number to use"},
 125     {"extensions", OPT_EXTENSIONS, 's',
 126      "Cert extension section (override value in config file)"},
 127     {"reqexts", OPT_REQEXTS, 's',
 128      "Request extension section (override value in config file)"},
 129     {"", OPT_MD, '-', "Any supported digest"},
 130 #ifndef OPENSSL_NO_ENGINE
 131     {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
 132     {"keygen_engine", OPT_KEYGEN_ENGINE, 's',
 133      "Specify engine to be used for key generation operations"},
 134 #endif
 135     {NULL}
 136 };
 137
 138 int req_main(int argc, char **argv)
 139 {
 140     ASN1_INTEGER *serial = NULL;
 141     BIO *in = NULL, *out = NULL;
 142     ENGINE *e = NULL, *gen_eng = NULL;
 143     EVP_PKEY *pkey = NULL;
 144     EVP_PKEY_CTX *genctx = NULL;
 145     STACK_OF(OPENSSL_STRING) *pkeyopts = NULL, *sigopts = NULL;
 146     X509 *x509ss = NULL;
 147     X509_REQ *req = NULL;
 148     const EVP_CIPHER *cipher = NULL;
 149     const EVP_MD *md_alg = NULL, *digest = NULL;
 150     char *extensions = NULL, *infile = NULL;
 151     char *outfile = NULL, *keyfile = NULL, *inrand = NULL;
 152     char *keyalgstr = NULL, *p, *prog, *passargin = NULL, *passargout = NULL;
 153     char *passin = NULL, *passout = NULL;
 154     char *nofree_passin = NULL, *nofree_passout = NULL;
 155     char *req_exts = NULL, *subj = NULL;
 156     char *template = default_config_file, *keyout = NULL;
 157     const char *keyalg = NULL;
 158     OPTION_CHOICE o;
 159     int ret = 1, x509 = 0, days = 30, i = 0, newreq = 0, verbose = 0;
 160     int pkey_type = -1, private = 0;
 161     int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyform = FORMAT_PEM;
 162     int modulus = 0, multirdn = 0, verify = 0, noout = 0, text = 0;
 163     int nodes = 0, newhdr = 0, subject = 0, pubkey = 0;
 164     long newkey = -1;
 165     unsigned long chtype = MBSTRING_ASC, nmflag = 0, reqflag = 0;
 166     char nmflag_set = 0;
 167
 168 #ifndef OPENSSL_NO_DES
 169     cipher = EVP_des_ede3_cbc();
 170 #endif
 171
 172     prog = opt_init(argc, argv, req_options);
 173     while ((o = opt_next()) != OPT_EOF) {
 174         switch (o) {
 175         case OPT_EOF:
 176         case OPT_ERR:
 177  opthelp:
 178             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 179             goto end;
 180         case OPT_HELP:
 181             opt_help(req_options);
 182             ret = 0;
 183             goto end;
 184         case OPT_INFORM:
 185             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
 186                 goto opthelp;
 187             break;
 188         case OPT_OUTFORM:
 189             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
 190                 goto opthelp;
 191             break;
 192         case OPT_ENGINE:
 193             e = setup_engine(opt_arg(), 0);
 194             break;
 195         case OPT_KEYGEN_ENGINE:
 196 #ifndef OPENSSL_NO_ENGINE
 197             gen_eng = ENGINE_by_id(opt_arg());
 198             if (gen_eng == NULL) {
 199                 BIO_printf(bio_err, "Can't find keygen engine %s\n", *argv);
 200                 goto opthelp;
 201             }
 202 #endif
 203             break;
 204         case OPT_KEY:
 205             keyfile = opt_arg();
 206             break;
 207         case OPT_PUBKEY:
 208             pubkey = 1;
 209             break;
 210         case OPT_NEW:
 211             newreq = 1;
 212             break;
 213         case OPT_CONFIG:
 214             template = opt_arg();
 215             break;
 216         case OPT_KEYFORM:
 217             if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
 218                 goto opthelp;
 219             break;
 220         case OPT_IN:
 221             infile = opt_arg();
 222             break;
 223         case OPT_OUT:
 224             outfile = opt_arg();
 225             break;
 226         case OPT_KEYOUT:
 227             keyout = opt_arg();
 228             break;
 229         case OPT_PASSIN:
 230             passargin = opt_arg();
 231             break;
 232         case OPT_PASSOUT:
 233             passargout = opt_arg();
 234             break;
 235         case OPT_RAND:
 236             inrand = opt_arg();
 237             break;
 238         case OPT_NEWKEY:
 239             keyalg = opt_arg();
 240             newreq = 1;
 241             break;
 242         case OPT_PKEYOPT:
 243             if (!pkeyopts)
 244                 pkeyopts = sk_OPENSSL_STRING_new_null();
 245             if (!pkeyopts || !sk_OPENSSL_STRING_push(pkeyopts, opt_arg()))
 246                 goto opthelp;
 247             break;
 248         case OPT_SIGOPT:
 249             if (!sigopts)
 250                 sigopts = sk_OPENSSL_STRING_new_null();
 251             if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
 252                 goto opthelp;
 253             break;
 254         case OPT_BATCH:
 255             batch = 1;
 256             break;
 257         case OPT_NEWHDR:
 258             newhdr = 1;
 259             break;
 260         case OPT_MODULUS:
 261             modulus = 1;
 262             break;
 263         case OPT_VERIFY:
 264             verify = 1;
 265             break;
 266         case OPT_NODES:
 267             nodes = 1;
 268             break;
 269         case OPT_NOOUT:
 270             noout = 1;
 271             break;
 272         case OPT_VERBOSE:
 273             verbose = 1;
 274             break;
 275         case OPT_UTF8:
 276             chtype = MBSTRING_UTF8;
 277             break;
 278         case OPT_NAMEOPT:
 279             nmflag_set = 1;
 280             if (!set_name_ex(&nmflag, opt_arg()))
 281                 goto opthelp;
 282             break;
 283         case OPT_REQOPT:
 284             if (!set_cert_ex(&reqflag, opt_arg()))
 285                 goto opthelp;
 286             break;
 287         case OPT_TEXT:
 288             text = 1;
 289             break;
 290         case OPT_X509:
 291             x509 = 1;
 292             break;
 293         case OPT_DAYS:
 294             days = atoi(opt_arg());
 295             break;
 296         case OPT_SET_SERIAL:
 297             serial = s2i_ASN1_INTEGER(NULL, opt_arg());
 298             if (serial == NULL)
 299                 goto opthelp;
 300             break;
 301         case OPT_SUBJECT:
 302             subject = 1;
 303             break;
 304         case OPT_SUBJ:
 305             subj = opt_arg();
 306             break;
 307         case OPT_MULTIVALUE_RDN:
 308             multirdn = 1;
 309             break;
 310         case OPT_EXTENSIONS:
 311             extensions = opt_arg();
 312             break;
 313         case OPT_REQEXTS:
 314             req_exts = opt_arg();
 315             break;
 316         case OPT_MD:
 317             if (!opt_md(opt_unknown(), &md_alg))
 318                 goto opthelp;
 319             digest = md_alg;
 320             break;
 321         }
 322     }
 323     argc = opt_num_rest();
 324     if (argc != 0)
 325         goto opthelp;
 326
 327     if (!nmflag_set)
 328         nmflag = XN_FLAG_ONELINE;
 329
 330     /* TODO: simplify this as pkey is still always NULL here */
 331     private = newreq && (pkey == NULL) ? 1 : 0;
 332
 333     if (!app_passwd(passargin, passargout, &passin, &passout)) {
 334         BIO_printf(bio_err, "Error getting passwords\n");
 335         goto end;
 336     }
 337
 338     if (verbose)
 339         BIO_printf(bio_err, "Using configuration from %s\n", template);
 340     req_conf = app_load_config(template);
 341     if (template != default_config_file && !app_load_modules(req_conf))
 342         goto end;
 343
 344     if (req_conf != NULL) {
 345         p = NCONF_get_string(req_conf, NULL, "oid_file");
 346         if (p == NULL)
 347             ERR_clear_error();
 348         if (p != NULL) {
 349             BIO *oid_bio;
 350
 351             oid_bio = BIO_new_file(p, "r");
 352             if (oid_bio == NULL) {
 353                 /*-
 354                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
 355                 ERR_print_errors(bio_err);
 356                 */
 357             } else {
 358                 OBJ_create_objects(oid_bio);
 359                 BIO_free(oid_bio);
 360             }
 361         }
 362     }
 363     if (!add_oid_section(req_conf))
 364         goto end;
 365
 366     if (md_alg == NULL) {
 367         p = NCONF_get_string(req_conf, SECTION, "default_md");
 368         if (p == NULL)
 369             ERR_clear_error();
 370         else {
 371             if (!opt_md(p, &md_alg))
 372                 goto opthelp;
 373             digest = md_alg;
 374         }
 375     }
 376
 377     if (!extensions) {
 378         extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
 379         if (!extensions)
 380             ERR_clear_error();
 381     }
 382     if (extensions) {
 383         /* Check syntax of file */
 384         X509V3_CTX ctx;
 385         X509V3_set_ctx_test(&ctx);
 386         X509V3_set_nconf(&ctx, req_conf);
 387         if (!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) {
 388             BIO_printf(bio_err,
 389                        "Error Loading extension section %s\n", extensions);
 390             goto end;
 391         }
 392     }
 393
 394     if (passin == NULL) {
 395         passin = nofree_passin =
 396             NCONF_get_string(req_conf, SECTION, "input_password");
 397         if (passin == NULL)
 398             ERR_clear_error();
 399     }
 400
 401     if (passout == NULL) {
 402         passout = nofree_passout =
 403             NCONF_get_string(req_conf, SECTION, "output_password");
 404         if (passout == NULL)
 405             ERR_clear_error();
 406     }
 407
 408     p = NCONF_get_string(req_conf, SECTION, STRING_MASK);
 409     if (!p)
 410         ERR_clear_error();
 411
 412     if (p && !ASN1_STRING_set_default_mask_asc(p)) {
 413         BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
 414         goto end;
 415     }
 416
 417     if (chtype != MBSTRING_UTF8) {
 418         p = NCONF_get_string(req_conf, SECTION, UTF8_IN);
 419         if (!p)
 420             ERR_clear_error();
 421         else if (strcmp(p, "yes") == 0)
 422             chtype = MBSTRING_UTF8;
 423     }
 424
 425     if (!req_exts) {
 426         req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
 427         if (!req_exts)
 428             ERR_clear_error();
 429     }
 430     if (req_exts) {
 431         /* Check syntax of file */
 432         X509V3_CTX ctx;
 433         X509V3_set_ctx_test(&ctx);
 434         X509V3_set_nconf(&ctx, req_conf);
 435         if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) {
 436             BIO_printf(bio_err,
 437                        "Error Loading request extension section %s\n",
 438                        req_exts);
 439             goto end;
 440         }
 441     }
 442
 443     if (keyfile != NULL) {
 444         pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key");
 445         if (!pkey) {
 446             /* load_key() has already printed an appropriate message */
 447             goto end;
 448         } else {
 449             char *randfile = NCONF_get_string(req_conf, SECTION, "RANDFILE");
 450             if (randfile == NULL)
 451                 ERR_clear_error();
 452             app_RAND_load_file(randfile, 0);
 453         }
 454     }
 455
 456     if (newreq && (pkey == NULL)) {
 457         char *randfile = NCONF_get_string(req_conf, SECTION, "RANDFILE");
 458         if (randfile == NULL)
 459             ERR_clear_error();
 460         app_RAND_load_file(randfile, 0);
 461         if (inrand)
 462             app_RAND_load_files(inrand);
 463
 464         if (!NCONF_get_number(req_conf, SECTION, BITS, &newkey)) {
 465             newkey = DEFAULT_KEY_LENGTH;
 466         }
 467
 468         if (keyalg) {
 469             genctx = set_keygen_ctx(keyalg, &pkey_type, &newkey,
 470                                     &keyalgstr, gen_eng);
 471             if (!genctx)
 472                 goto end;
 473         }
 474
 475         if (newkey < MIN_KEY_LENGTH
 476             && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) {
 477             BIO_printf(bio_err, "private key length is too short,\n");
 478             BIO_printf(bio_err, "it needs to be at least %d bits, not %ld\n",
 479                        MIN_KEY_LENGTH, newkey);
 480             goto end;
 481         }
 482
 483         if (!genctx) {
 484             genctx = set_keygen_ctx(NULL, &pkey_type, &newkey,
 485                                     &keyalgstr, gen_eng);
 486             if (!genctx)
 487                 goto end;
 488         }
 489
 490         if (pkeyopts) {
 491             char *genopt;
 492             for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) {
 493                 genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
 494                 if (pkey_ctrl_string(genctx, genopt) <= 0) {
 495                     BIO_printf(bio_err, "parameter error \"%s\"\n", genopt);
 496                     ERR_print_errors(bio_err);
 497                     goto end;
 498                 }
 499             }
 500         }
 501
 502         if (pkey_type == EVP_PKEY_EC) {
 503             BIO_printf(bio_err, "Generating an EC private key\n");
 504         } else {
 505             BIO_printf(bio_err, "Generating a %ld bit %s private key\n",
 506                        newkey, keyalgstr);
 507         }
 508
 509         EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
 510         EVP_PKEY_CTX_set_app_data(genctx, bio_err);
 511
 512         if (EVP_PKEY_keygen(genctx, &pkey) <= 0) {
 513             BIO_puts(bio_err, "Error Generating Key\n");
 514             goto end;
 515         }
 516
 517         EVP_PKEY_CTX_free(genctx);
 518         genctx = NULL;
 519
 520         app_RAND_write_file(randfile);
 521
 522         if (keyout == NULL) {
 523             keyout = NCONF_get_string(req_conf, SECTION, KEYFILE);
 524             if (keyout == NULL)
 525                 ERR_clear_error();
 526         }
 527
 528         if (keyout == NULL)
 529             BIO_printf(bio_err, "writing new private key to stdout\n");
 530         else
 531             BIO_printf(bio_err, "writing new private key to '%s'\n", keyout);
 532         out = bio_open_owner(keyout, outformat, private);
 533         if (out == NULL)
 534             goto end;
 535
 536         p = NCONF_get_string(req_conf, SECTION, "encrypt_rsa_key");
 537         if (p == NULL) {
 538             ERR_clear_error();
 539             p = NCONF_get_string(req_conf, SECTION, "encrypt_key");
 540             if (p == NULL)
 541                 ERR_clear_error();
 542         }
 543         if ((p != NULL) && (strcmp(p, "no") == 0))
 544             cipher = NULL;
 545         if (nodes)
 546             cipher = NULL;
 547
 548         i = 0;
 549  loop:
 550         assert(private);
 551         if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
 552                                       NULL, 0, NULL, passout)) {
 553             if ((ERR_GET_REASON(ERR_peek_error()) ==
 554                  PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
 555                 ERR_clear_error();
 556                 i++;
 557                 goto loop;
 558             }
 559             goto end;
 560         }
 561         BIO_free(out);
 562         out = NULL;
 563         BIO_printf(bio_err, "-----\n");
 564     }
 565
 566     if (!newreq) {
 567         in = bio_open_default(infile, 'r', informat);
 568         if (in == NULL)
 569             goto end;
 570
 571         if (informat == FORMAT_ASN1)
 572             req = d2i_X509_REQ_bio(in, NULL);
 573         else
 574             req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
 575         if (req == NULL) {
 576             BIO_printf(bio_err, "unable to load X509 request\n");
 577             goto end;
 578         }
 579     }
 580
 581     if (newreq || x509) {
 582         if (pkey == NULL) {
 583             BIO_printf(bio_err, "you need to specify a private key\n");
 584             goto end;
 585         }
 586
 587         if (req == NULL) {
 588             req = X509_REQ_new();
 589             if (req == NULL) {
 590                 goto end;
 591             }
 592
 593             i = make_REQ(req, pkey, subj, multirdn, !x509, chtype);
 594             subj = NULL;        /* done processing '-subj' option */
 595             if (!i) {
 596                 BIO_printf(bio_err, "problems making Certificate Request\n");
 597                 goto end;
 598             }
 599         }
 600         if (x509) {
 601             EVP_PKEY *tmppkey;
 602             X509V3_CTX ext_ctx;
 603             if ((x509ss = X509_new()) == NULL)
 604                 goto end;
 605
 606             /* Set version to V3 */
 607             if (extensions && !X509_set_version(x509ss, 2))
 608                 goto end;
 609             if (serial) {
 610                 if (!X509_set_serialNumber(x509ss, serial))
 611                     goto end;
 612             } else {
 613                 if (!rand_serial(NULL, X509_get_serialNumber(x509ss)))
 614                     goto end;
 615             }
 616
 617             if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req)))
 618                 goto end;
 619             if (!X509_gmtime_adj(X509_get_notBefore(x509ss), 0))
 620                 goto end;
 621             if (!X509_time_adj_ex(X509_get_notAfter(x509ss), days, 0, NULL))
 622                 goto end;
 623             if (!X509_set_subject_name
 624                 (x509ss, X509_REQ_get_subject_name(req)))
 625                 goto end;
 626             tmppkey = X509_REQ_get0_pubkey(req);
 627             if (!tmppkey || !X509_set_pubkey(x509ss, tmppkey))
 628                 goto end;
 629
 630             /* Set up V3 context struct */
 631
 632             X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
 633             X509V3_set_nconf(&ext_ctx, req_conf);
 634
 635             /* Add extensions */
 636             if (extensions && !X509V3_EXT_add_nconf(req_conf,
 637                                                     &ext_ctx, extensions,
 638                                                     x509ss)) {
 639                 BIO_printf(bio_err, "Error Loading extension section %s\n",
 640                            extensions);
 641                 goto end;
 642             }
 643
 644             i = do_X509_sign(x509ss, pkey, digest, sigopts);
 645             if (!i) {
 646                 ERR_print_errors(bio_err);
 647                 goto end;
 648             }
 649         } else {
 650             X509V3_CTX ext_ctx;
 651
 652             /* Set up V3 context struct */
 653
 654             X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
 655             X509V3_set_nconf(&ext_ctx, req_conf);
 656
 657             /* Add extensions */
 658             if (req_exts && !X509V3_EXT_REQ_add_nconf(req_conf,
 659                                                       &ext_ctx, req_exts,
 660                                                       req)) {
 661                 BIO_printf(bio_err, "Error Loading extension section %s\n",
 662                            req_exts);
 663                 goto end;
 664             }
 665             i = do_X509_REQ_sign(req, pkey, digest, sigopts);
 666             if (!i) {
 667                 ERR_print_errors(bio_err);
 668                 goto end;
 669             }
 670         }
 671     }
 672
 673     if (subj && x509) {
 674         BIO_printf(bio_err, "Cannot modify certificate subject\n");
 675         goto end;
 676     }
 677
 678     if (subj && !x509) {
 679         if (verbose) {
 680             BIO_printf(bio_err, "Modifying Request's Subject\n");
 681             print_name(bio_err, "old subject=",
 682                        X509_REQ_get_subject_name(req), nmflag);
 683         }
 684
 685         if (build_subject(req, subj, chtype, multirdn) == 0) {
 686             BIO_printf(bio_err, "ERROR: cannot modify subject\n");
 687             ret = 1;
 688             goto end;
 689         }
 690
 691         if (verbose) {
 692             print_name(bio_err, "new subject=",
 693                        X509_REQ_get_subject_name(req), nmflag);
 694         }
 695     }
 696
 697     if (verify && !x509) {
 698         EVP_PKEY *tpubkey = pkey;
 699
 700         if (tpubkey == NULL) {
 701             tpubkey = X509_REQ_get0_pubkey(req);
 702             if (tpubkey == NULL)
 703                 goto end;
 704         }
 705
 706         i = X509_REQ_verify(req, tpubkey);
 707
 708         if (i < 0) {
 709             goto end;
 710         } else if (i == 0) {
 711             BIO_printf(bio_err, "verify failure\n");
 712             ERR_print_errors(bio_err);
 713         } else                  /* if (i > 0) */
 714             BIO_printf(bio_err, "verify OK\n");
 715     }
 716
 717     if (noout && !text && !modulus && !subject && !pubkey) {
 718         ret = 0;
 719         goto end;
 720     }
 721
 722     out = bio_open_default(outfile,
 723                            keyout != NULL && outfile != NULL &&
 724                            strcmp(keyout, outfile) == 0 ? 'a' : 'w',
 725                            outformat);
 726     if (out == NULL)
 727         goto end;
 728
 729     if (pubkey) {
 730         EVP_PKEY *tpubkey = X509_REQ_get0_pubkey(req);
 731
 732         if (tpubkey == NULL) {
 733             BIO_printf(bio_err, "Error getting public key\n");
 734             ERR_print_errors(bio_err);
 735             goto end;
 736         }
 737         PEM_write_bio_PUBKEY(out, tpubkey);
 738     }
 739
 740     if (text) {
 741         if (x509)
 742             X509_print_ex(out, x509ss, nmflag, reqflag);
 743         else
 744             X509_REQ_print_ex(out, req, nmflag, reqflag);
 745     }
 746
 747     if (subject) {
 748         if (x509)
 749             print_name(out, "subject=", X509_get_subject_name(x509ss),
 750                        nmflag);
 751         else
 752             print_name(out, "subject=", X509_REQ_get_subject_name(req),
 753                        nmflag);
 754     }
 755
 756     if (modulus) {
 757         EVP_PKEY *tpubkey;
 758
 759         if (x509)
 760             tpubkey = X509_get0_pubkey(x509ss);
 761         else
 762             tpubkey = X509_REQ_get0_pubkey(req);
 763         if (tpubkey == NULL) {
 764             fprintf(stdout, "Modulus=unavailable\n");
 765             goto end;
 766         }
 767         fprintf(stdout, "Modulus=");
 768 #ifndef OPENSSL_NO_RSA
 769         if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA) {
 770             const BIGNUM *n;
 771             RSA_get0_key(EVP_PKEY_get0_RSA(tpubkey), &n, NULL, NULL);
 772             BN_print(out, n);
 773         } else
 774 #endif
 775             fprintf(stdout, "Wrong Algorithm type");
 776         fprintf(stdout, "\n");
 777     }
 778
 779     if (!noout && !x509) {
 780         if (outformat == FORMAT_ASN1)
 781             i = i2d_X509_REQ_bio(out, req);
 782         else if (newhdr)
 783             i = PEM_write_bio_X509_REQ_NEW(out, req);
 784         else
 785             i = PEM_write_bio_X509_REQ(out, req);
 786         if (!i) {
 787             BIO_printf(bio_err, "unable to write X509 request\n");
 788             goto end;
 789         }
 790     }
 791     if (!noout && x509 && (x509ss != NULL)) {
 792         if (outformat == FORMAT_ASN1)
 793             i = i2d_X509_bio(out, x509ss);
 794         else
 795             i = PEM_write_bio_X509(out, x509ss);
 796         if (!i) {
 797             BIO_printf(bio_err, "unable to write X509 certificate\n");
 798             goto end;
 799         }
 800     }
 801     ret = 0;
 802  end:
 803     if (ret) {
 804         ERR_print_errors(bio_err);
 805     }
 806     NCONF_free(req_conf);
 807     BIO_free(in);
 808     BIO_free_all(out);
 809     EVP_PKEY_free(pkey);
 810     EVP_PKEY_CTX_free(genctx);
 811     sk_OPENSSL_STRING_free(pkeyopts);
 812     sk_OPENSSL_STRING_free(sigopts);
 813 #ifndef OPENSSL_NO_ENGINE
 814     ENGINE_free(gen_eng);
 815 #endif
 816     OPENSSL_free(keyalgstr);
 817     X509_REQ_free(req);
 818     X509_free(x509ss);
 819     ASN1_INTEGER_free(serial);
 820     if (passin != nofree_passin)
 821         OPENSSL_free(passin);
 822     if (passout != nofree_passout)
 823         OPENSSL_free(passout);
 824     return (ret);
 825 }
 826
 827 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *subj, int multirdn,
 828                     int attribs, unsigned long chtype)
 829 {
 830     int ret = 0, i;
 831     char no_prompt = 0;
 832     STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
 833     char *tmp, *dn_sect, *attr_sect;
 834
 835     tmp = NCONF_get_string(req_conf, SECTION, PROMPT);
 836     if (tmp == NULL)
 837         ERR_clear_error();
 838     if ((tmp != NULL) && strcmp(tmp, "no") == 0)
 839         no_prompt = 1;
 840
 841     dn_sect = NCONF_get_string(req_conf, SECTION, DISTINGUISHED_NAME);
 842     if (dn_sect == NULL) {
 843         BIO_printf(bio_err, "unable to find '%s' in config\n",
 844                    DISTINGUISHED_NAME);
 845         goto err;
 846     }
 847     dn_sk = NCONF_get_section(req_conf, dn_sect);
 848     if (dn_sk == NULL) {
 849         BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect);
 850         goto err;
 851     }
 852
 853     attr_sect = NCONF_get_string(req_conf, SECTION, ATTRIBUTES);
 854     if (attr_sect == NULL) {
 855         ERR_clear_error();
 856         attr_sk = NULL;
 857     } else {
 858         attr_sk = NCONF_get_section(req_conf, attr_sect);
 859         if (attr_sk == NULL) {
 860             BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect);
 861             goto err;
 862         }
 863     }
 864
 865     /* setup version number */
 866     if (!X509_REQ_set_version(req, 0L))
 867         goto err;               /* version 1 */
 868
 869     if (subj)
 870         i = build_subject(req, subj, chtype, multirdn);
 871     else if (no_prompt)
 872         i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
 873     else
 874         i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs,
 875                         chtype);
 876     if (!i)
 877         goto err;
 878
 879     if (!X509_REQ_set_pubkey(req, pkey))
 880         goto err;
 881
 882     ret = 1;
 883  err:
 884     return (ret);
 885 }
 886
 887 /*
 888  * subject is expected to be in the format /type0=value0/type1=value1/type2=...
 889  * where characters may be escaped by \
 890  */
 891 static int build_subject(X509_REQ *req, const char *subject, unsigned long chtype,
 892                          int multirdn)
 893 {
 894     X509_NAME *n;
 895
 896     if ((n = parse_name(subject, chtype, multirdn)) == NULL)
 897         return 0;
 898
 899     if (!X509_REQ_set_subject_name(req, n)) {
 900         X509_NAME_free(n);
 901         return 0;
 902     }
 903     X509_NAME_free(n);
 904     return 1;
 905 }
 906
 907 static int prompt_info(X509_REQ *req,
 908                        STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
 909                        STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
 910                        int attribs, unsigned long chtype)
 911 {
 912     int i;
 913     char *p, *q;
 914     char buf[100];
 915     int nid, mval;
 916     long n_min, n_max;
 917     char *type, *value;
 918     const char *def;
 919     CONF_VALUE *v;
 920     X509_NAME *subj;
 921     subj = X509_REQ_get_subject_name(req);
 922
 923     if (!batch) {
 924         BIO_printf(bio_err,
 925                    "You are about to be asked to enter information that will be incorporated\n");
 926         BIO_printf(bio_err, "into your certificate request.\n");
 927         BIO_printf(bio_err,
 928                    "What you are about to enter is what is called a Distinguished Name or a DN.\n");
 929         BIO_printf(bio_err,
 930                    "There are quite a few fields but you can leave some blank\n");
 931         BIO_printf(bio_err,
 932                    "For some fields there will be a default value,\n");
 933         BIO_printf(bio_err,
 934                    "If you enter '.', the field will be left blank.\n");
 935         BIO_printf(bio_err, "-----\n");
 936     }
 937
 938     if (sk_CONF_VALUE_num(dn_sk)) {
 939         i = -1;
 940  start:for (;;) {
 941             i++;
 942             if (sk_CONF_VALUE_num(dn_sk) <= i)
 943                 break;
 944
 945             v = sk_CONF_VALUE_value(dn_sk, i);
 946             p = q = NULL;
 947             type = v->name;
 948             if (!check_end(type, "_min") || !check_end(type, "_max") ||
 949                 !check_end(type, "_default") || !check_end(type, "_value"))
 950                 continue;
 951             /*
 952              * Skip past any leading X. X: X, etc to allow for multiple
 953              * instances
 954              */
 955             for (p = v->name; *p; p++)
 956                 if ((*p == ':') || (*p == ',') || (*p == '.')) {
 957                     p++;
 958                     if (*p)
 959                         type = p;
 960                     break;
 961                 }
 962             if (*type == '+') {
 963                 mval = -1;
 964                 type++;
 965             } else
 966                 mval = 0;
 967             /* If OBJ not recognised ignore it */
 968             if ((nid = OBJ_txt2nid(type)) == NID_undef)
 969                 goto start;
 970             if (BIO_snprintf(buf, sizeof buf, "%s_default", v->name)
 971                 >= (int)sizeof(buf)) {
 972                 BIO_printf(bio_err, "Name '%s' too long\n", v->name);
 973                 return 0;
 974             }
 975
 976             if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
 977                 ERR_clear_error();
 978                 def = "";
 979             }
 980
 981             BIO_snprintf(buf, sizeof buf, "%s_value", v->name);
 982             if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
 983                 ERR_clear_error();
 984                 value = NULL;
 985             }
 986
 987             BIO_snprintf(buf, sizeof buf, "%s_min", v->name);
 988             if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
 989                 ERR_clear_error();
 990                 n_min = -1;
 991             }
 992
 993             BIO_snprintf(buf, sizeof buf, "%s_max", v->name);
 994             if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
 995                 ERR_clear_error();
 996                 n_max = -1;
 997             }
 998
 999             if (!add_DN_object(subj, v->value, def, value, nid,
1000                                n_min, n_max, chtype, mval))
1001                 return 0;
1002         }
1003         if (X509_NAME_entry_count(subj) == 0) {
1004             BIO_printf(bio_err,
1005                        "error, no objects specified in config file\n");
1006             return 0;
1007         }
1008
1009         if (attribs) {
1010             if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0)
1011                 && (!batch)) {
1012                 BIO_printf(bio_err,
1013                            "\nPlease enter the following 'extra' attributes\n");
1014                 BIO_printf(bio_err,
1015                            "to be sent with your certificate request\n");
1016             }
1017
1018             i = -1;
1019  start2:   for (;;) {
1020                 i++;
1021                 if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i))
1022                     break;
1023
1024                 v = sk_CONF_VALUE_value(attr_sk, i);
1025                 type = v->name;
1026                 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1027                     goto start2;
1028
1029                 if (BIO_snprintf(buf, sizeof buf, "%s_default", type)
1030                     >= (int)sizeof(buf)) {
1031                     BIO_printf(bio_err, "Name '%s' too long\n", v->name);
1032                     return 0;
1033                 }
1034
1035                 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1036                     == NULL) {
1037                     ERR_clear_error();
1038                     def = "";
1039                 }
1040
1041                 BIO_snprintf(buf, sizeof buf, "%s_value", type);
1042                 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1043                     == NULL) {
1044                     ERR_clear_error();
1045                     value = NULL;
1046                 }
1047
1048                 BIO_snprintf(buf, sizeof buf, "%s_min", type);
1049                 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1050                     ERR_clear_error();
1051                     n_min = -1;
1052                 }
1053
1054                 BIO_snprintf(buf, sizeof buf, "%s_max", type);
1055                 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1056                     ERR_clear_error();
1057                     n_max = -1;
1058                 }
1059
1060                 if (!add_attribute_object(req,
1061                                           v->value, def, value, nid, n_min,
1062                                           n_max, chtype))
1063                     return 0;
1064             }
1065         }
1066     } else {
1067         BIO_printf(bio_err, "No template, please set one up.\n");
1068         return 0;
1069     }
1070
1071     return 1;
1072
1073 }
1074
1075 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1076                      STACK_OF(CONF_VALUE) *attr_sk, int attribs,
1077                      unsigned long chtype)
1078 {
1079     int i, spec_char, plus_char;
1080     char *p, *q;
1081     char *type;
1082     CONF_VALUE *v;
1083     X509_NAME *subj;
1084
1085     subj = X509_REQ_get_subject_name(req);
1086
1087     for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1088         int mval;
1089         v = sk_CONF_VALUE_value(dn_sk, i);
1090         p = q = NULL;
1091         type = v->name;
1092         /*
1093          * Skip past any leading X. X: X, etc to allow for multiple instances
1094          */
1095         for (p = v->name; *p; p++) {
1096 #ifndef CHARSET_EBCDIC
1097             spec_char = ((*p == ':') || (*p == ',') || (*p == '.'));
1098 #else
1099             spec_char = ((*p == os_toascii[':']) || (*p == os_toascii[','])
1100                     || (*p == os_toascii['.']));
1101 #endif
1102             if (spec_char) {
1103                 p++;
1104                 if (*p)
1105                     type = p;
1106                 break;
1107             }
1108         }
1109 #ifndef CHARSET_EBCDIC
1110         plus_char = (*type == '+');
1111 #else
1112         plus_char = (*type == os_toascii['+']);
1113 #endif
1114         if (plus_char) {
1115             type++;
1116             mval = -1;
1117         } else
1118             mval = 0;
1119         if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1120                                         (unsigned char *)v->value, -1, -1,
1121                                         mval))
1122             return 0;
1123
1124     }
1125
1126     if (!X509_NAME_entry_count(subj)) {
1127         BIO_printf(bio_err, "error, no objects specified in config file\n");
1128         return 0;
1129     }
1130     if (attribs) {
1131         for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1132             v = sk_CONF_VALUE_value(attr_sk, i);
1133             if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1134                                            (unsigned char *)v->value, -1))
1135                 return 0;
1136         }
1137     }
1138     return 1;
1139 }
1140
1141 static int add_DN_object(X509_NAME *n, char *text, const char *def,
1142                          char *value, int nid, int n_min, int n_max,
1143                          unsigned long chtype, int mval)
1144 {
1145     int i, ret = 0;
1146     char buf[1024];
1147  start:
1148     if (!batch)
1149         BIO_printf(bio_err, "%s [%s]:", text, def);
1150     (void)BIO_flush(bio_err);
1151     if (value != NULL) {
1152         OPENSSL_strlcpy(buf, value, sizeof buf);
1153         OPENSSL_strlcat(buf, "\n", sizeof buf);
1154         BIO_printf(bio_err, "%s\n", value);
1155     } else {
1156         buf[0] = '\0';
1157         if (!batch) {
1158             if (!fgets(buf, sizeof buf, stdin))
1159                 return 0;
1160         } else {
1161             buf[0] = '\n';
1162             buf[1] = '\0';
1163         }
1164     }
1165
1166     if (buf[0] == '\0')
1167         return (0);
1168     else if (buf[0] == '\n') {
1169         if ((def == NULL) || (def[0] == '\0'))
1170             return (1);
1171         OPENSSL_strlcpy(buf, def, sizeof buf);
1172         OPENSSL_strlcat(buf, "\n", sizeof buf);
1173     } else if ((buf[0] == '.') && (buf[1] == '\n'))
1174         return (1);
1175
1176     i = strlen(buf);
1177     if (buf[i - 1] != '\n') {
1178         BIO_printf(bio_err, "weird input :-(\n");
1179         return (0);
1180     }
1181     buf[--i] = '\0';
1182 #ifdef CHARSET_EBCDIC
1183     ebcdic2ascii(buf, buf, i);
1184 #endif
1185     if (!req_check_len(i, n_min, n_max)) {
1186         if (batch || value)
1187             return 0;
1188         goto start;
1189     }
1190
1191     if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1192                                     (unsigned char *)buf, -1, -1, mval))
1193         goto err;
1194     ret = 1;
1195  err:
1196     return (ret);
1197 }
1198
1199 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
1200                                 char *value, int nid, int n_min,
1201                                 int n_max, unsigned long chtype)
1202 {
1203     int i;
1204     static char buf[1024];
1205
1206  start:
1207     if (!batch)
1208         BIO_printf(bio_err, "%s [%s]:", text, def);
1209     (void)BIO_flush(bio_err);
1210     if (value != NULL) {
1211         OPENSSL_strlcpy(buf, value, sizeof buf);
1212         OPENSSL_strlcat(buf, "\n", sizeof buf);
1213         BIO_printf(bio_err, "%s\n", value);
1214     } else {
1215         buf[0] = '\0';
1216         if (!batch) {
1217             if (!fgets(buf, sizeof buf, stdin))
1218                 return 0;
1219         } else {
1220             buf[0] = '\n';
1221             buf[1] = '\0';
1222         }
1223     }
1224
1225     if (buf[0] == '\0')
1226         return (0);
1227     else if (buf[0] == '\n') {
1228         if ((def == NULL) || (def[0] == '\0'))
1229             return (1);
1230         OPENSSL_strlcpy(buf, def, sizeof buf);
1231         OPENSSL_strlcat(buf, "\n", sizeof buf);
1232     } else if ((buf[0] == '.') && (buf[1] == '\n'))
1233         return (1);
1234
1235     i = strlen(buf);
1236     if (buf[i - 1] != '\n') {
1237         BIO_printf(bio_err, "weird input :-(\n");
1238         return (0);
1239     }
1240     buf[--i] = '\0';
1241 #ifdef CHARSET_EBCDIC
1242     ebcdic2ascii(buf, buf, i);
1243 #endif
1244     if (!req_check_len(i, n_min, n_max)) {
1245         if (batch || value)
1246             return 0;
1247         goto start;
1248     }
1249
1250     if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1251                                    (unsigned char *)buf, -1)) {
1252         BIO_printf(bio_err, "Error adding attribute\n");
1253         ERR_print_errors(bio_err);
1254         goto err;
1255     }
1256
1257     return (1);
1258  err:
1259     return (0);
1260 }
1261
1262 static int req_check_len(int len, int n_min, int n_max)
1263 {
1264     if ((n_min > 0) && (len < n_min)) {
1265         BIO_printf(bio_err,
1266                    "string is too short, it needs to be at least %d bytes long\n",
1267                    n_min);
1268         return (0);
1269     }
1270     if ((n_max >= 0) && (len > n_max)) {
1271         BIO_printf(bio_err,
1272                    "string is too long, it needs to be less than  %d bytes long\n",
1273                    n_max);
1274         return (0);
1275     }
1276     return (1);
1277 }
1278
1279 /* Check if the end of a string matches 'end' */
1280 static int check_end(const char *str, const char *end)
1281 {
1282     int elen, slen;
1283     const char *tmp;
1284     elen = strlen(end);
1285     slen = strlen(str);
1286     if (elen > slen)
1287         return 1;
1288     tmp = str + slen - elen;
1289     return strcmp(tmp, end);
1290 }
1291
1292 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
1293                                     int *pkey_type, long *pkeylen,
1294                                     char **palgnam, ENGINE *keygen_engine)
1295 {
1296     EVP_PKEY_CTX *gctx = NULL;
1297     EVP_PKEY *param = NULL;
1298     long keylen = -1;
1299     BIO *pbio = NULL;
1300     const char *paramfile = NULL;
1301
1302     if (gstr == NULL) {
1303         *pkey_type = EVP_PKEY_RSA;
1304         keylen = *pkeylen;
1305     } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1306         *pkey_type = EVP_PKEY_RSA;
1307         keylen = atol(gstr);
1308         *pkeylen = keylen;
1309     } else if (strncmp(gstr, "param:", 6) == 0)
1310         paramfile = gstr + 6;
1311     else {
1312         const char *p = strchr(gstr, ':');
1313         int len;
1314         ENGINE *tmpeng;
1315         const EVP_PKEY_ASN1_METHOD *ameth;
1316
1317         if (p)
1318             len = p - gstr;
1319         else
1320             len = strlen(gstr);
1321         /*
1322          * The lookup of a the string will cover all engines so keep a note
1323          * of the implementation.
1324          */
1325
1326         ameth = EVP_PKEY_asn1_find_str(&tmpeng, gstr, len);
1327
1328         if (!ameth) {
1329             BIO_printf(bio_err, "Unknown algorithm %.*s\n", len, gstr);
1330             return NULL;
1331         }
1332
1333         EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL, ameth);
1334 #ifndef OPENSSL_NO_ENGINE
1335         ENGINE_finish(tmpeng);
1336 #endif
1337         if (*pkey_type == EVP_PKEY_RSA) {
1338             if (p) {
1339                 keylen = atol(p + 1);
1340                 *pkeylen = keylen;
1341             } else
1342                 keylen = *pkeylen;
1343         } else if (p)
1344             paramfile = p + 1;
1345     }
1346
1347     if (paramfile) {
1348         pbio = BIO_new_file(paramfile, "r");
1349         if (!pbio) {
1350             BIO_printf(bio_err, "Can't open parameter file %s\n", paramfile);
1351             return NULL;
1352         }
1353         param = PEM_read_bio_Parameters(pbio, NULL);
1354
1355         if (!param) {
1356             X509 *x;
1357             (void)BIO_reset(pbio);
1358             x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1359             if (x) {
1360                 param = X509_get_pubkey(x);
1361                 X509_free(x);
1362             }
1363         }
1364
1365         BIO_free(pbio);
1366
1367         if (!param) {
1368             BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile);
1369             return NULL;
1370         }
1371         if (*pkey_type == -1)
1372             *pkey_type = EVP_PKEY_id(param);
1373         else if (*pkey_type != EVP_PKEY_base_id(param)) {
1374             BIO_printf(bio_err, "Key Type does not match parameters\n");
1375             EVP_PKEY_free(param);
1376             return NULL;
1377         }
1378     }
1379
1380     if (palgnam) {
1381         const EVP_PKEY_ASN1_METHOD *ameth;
1382         ENGINE *tmpeng;
1383         const char *anam;
1384         ameth = EVP_PKEY_asn1_find(&tmpeng, *pkey_type);
1385         if (!ameth) {
1386             BIO_puts(bio_err, "Internal error: can't find key algorithm\n");
1387             return NULL;
1388         }
1389         EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1390         *palgnam = OPENSSL_strdup(anam);
1391 #ifndef OPENSSL_NO_ENGINE
1392         ENGINE_finish(tmpeng);
1393 #endif
1394     }
1395
1396     if (param) {
1397         gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1398         *pkeylen = EVP_PKEY_bits(param);
1399         EVP_PKEY_free(param);
1400     } else
1401         gctx = EVP_PKEY_CTX_new_id(*pkey_type, keygen_engine);
1402
1403     if (gctx == NULL) {
1404         BIO_puts(bio_err, "Error allocating keygen context\n");
1405         ERR_print_errors(bio_err);
1406         return NULL;
1407     }
1408
1409     if (EVP_PKEY_keygen_init(gctx) <= 0) {
1410         BIO_puts(bio_err, "Error initializing keygen context\n");
1411         ERR_print_errors(bio_err);
1412         EVP_PKEY_CTX_free(gctx);
1413         return NULL;
1414     }
1415 #ifndef OPENSSL_NO_RSA
1416     if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) {
1417         if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) {
1418             BIO_puts(bio_err, "Error setting RSA keysize\n");
1419             ERR_print_errors(bio_err);
1420             EVP_PKEY_CTX_free(gctx);
1421             return NULL;
1422         }
1423     }
1424 #endif
1425
1426     return gctx;
1427 }
1428
1429 static int genpkey_cb(EVP_PKEY_CTX *ctx)
1430 {
1431     char c = '*';
1432     BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1433     int p;
1434     p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1435     if (p == 0)
1436         c = '.';
1437     if (p == 1)
1438         c = '+';
1439     if (p == 2)
1440         c = '*';
1441     if (p == 3)
1442         c = '\n';
1443     BIO_write(b, &c, 1);
1444     (void)BIO_flush(b);
1445     return 1;
1446 }
1447
1448 static int do_sign_init(EVP_MD_CTX *ctx, EVP_PKEY *pkey,
1449                         const EVP_MD *md, STACK_OF(OPENSSL_STRING) *sigopts)
1450 {
1451     EVP_PKEY_CTX *pkctx = NULL;
1452     int i;
1453
1454     if (ctx == NULL)
1455         return 0;
1456     if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey))
1457         return 0;
1458     for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
1459         char *sigopt = sk_OPENSSL_STRING_value(sigopts, i);
1460         if (pkey_ctrl_string(pkctx, sigopt) <= 0) {
1461             BIO_printf(bio_err, "parameter error \"%s\"\n", sigopt);
1462             ERR_print_errors(bio_err);
1463             return 0;
1464         }
1465     }
1466     return 1;
1467 }
1468
1469 int do_X509_sign(X509 *x, EVP_PKEY *pkey, const EVP_MD *md,
1470                  STACK_OF(OPENSSL_STRING) *sigopts)
1471 {
1472     int rv;
1473     EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1474
1475     rv = do_sign_init(mctx, pkey, md, sigopts);
1476     if (rv > 0)
1477         rv = X509_sign_ctx(x, mctx);
1478     EVP_MD_CTX_free(mctx);
1479     return rv > 0 ? 1 : 0;
1480 }
1481
1482 int do_X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md,
1483                      STACK_OF(OPENSSL_STRING) *sigopts)
1484 {
1485     int rv;
1486     EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1487     rv = do_sign_init(mctx, pkey, md, sigopts);
1488     if (rv > 0)
1489         rv = X509_REQ_sign_ctx(x, mctx);
1490     EVP_MD_CTX_free(mctx);
1491     return rv > 0 ? 1 : 0;
1492 }
1493
1494 int do_X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const EVP_MD *md,
1495                      STACK_OF(OPENSSL_STRING) *sigopts)
1496 {
1497     int rv;
1498     EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1499     rv = do_sign_init(mctx, pkey, md, sigopts);
1500     if (rv > 0)
1501         rv = X509_CRL_sign_ctx(x, mctx);
1502     EVP_MD_CTX_free(mctx);
1503     return rv > 0 ? 1 : 0;
1504 }