apps/req.c

   1 /* apps/req.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58
  59 #include <stdio.h>
  60 #include <stdlib.h>
  61 #include <time.h>
  62 #include <string.h>
  63 #ifdef NO_STDIO
  64 #define APPS_WIN16
  65 #endif
  66 #include "apps.h"
  67 #include <openssl/bio.h>
  68 #include <openssl/evp.h>
  69 #include <openssl/rand.h>
  70 #include <openssl/conf.h>
  71 #include <openssl/err.h>
  72 #include <openssl/asn1.h>
  73 #include <openssl/x509.h>
  74 #include <openssl/x509v3.h>
  75 #include <openssl/objects.h>
  76 #include <openssl/pem.h>
  77
  78 #define SECTION         "req"
  79
  80 #define BITS            "default_bits"
  81 #define KEYFILE         "default_keyfile"
  82 #define DISTINGUISHED_NAME      "distinguished_name"
  83 #define ATTRIBUTES      "attributes"
  84 #define V3_EXTENSIONS   "x509_extensions"
  85 #define REQ_EXTENSIONS  "req_extensions"
  86
  87 #define DEFAULT_KEY_LENGTH      512
  88 #define MIN_KEY_LENGTH          384
  89
  90 #undef PROG
  91 #define PROG    req_main
  92
  93 /* -inform arg  - input format - default PEM (one of DER, TXT or PEM)
  94  * -outform arg - output format - default PEM
  95  * -in arg      - input file - default stdin
  96  * -out arg     - output file - default stdout
  97  * -verify      - check request signature
  98  * -noout       - don't print stuff out.
  99  * -text        - print out human readable text.
 100  * -nodes       - no des encryption
 101  * -config file - Load configuration file.
 102  * -key file    - make a request using key in file (or use it for verification).
 103  * -keyform     - key file format.
 104  * -newkey      - make a key and a request.
 105  * -modulus     - print RSA modulus.
 106  * -x509        - output a self signed X509 structure instead.
 107  * -asn1-kludge - output new certificate request in a format that some CA's
 108  *                require.  This format is wrong
 109  */
 110
 111 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
 112 static int add_attribute_object(STACK_OF(X509_ATTRIBUTE) *n, char *text,
 113                                 char *def, char *value, int nid, int min,
 114                                 int max);
 115 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
 116         int nid,int min,int max);
 117 static void MS_CALLBACK req_cb(int p,int n,void *arg);
 118 static int req_fix_data(int nid,int *type,int len,int min,int max);
 119 static int check_end(char *str, char *end);
 120 static int add_oid_section(LHASH *conf);
 121 #ifndef MONOLITH
 122 static char *default_config_file=NULL;
 123 static LHASH *config=NULL;
 124 #endif
 125 static LHASH *req_conf=NULL;
 126
 127 #define TYPE_RSA        1
 128 #define TYPE_DSA        2
 129 #define TYPE_DH         3
 130
 131 int MAIN(int argc, char **argv)
 132         {
 133 #ifndef NO_DSA
 134         DSA *dsa_params=NULL;
 135 #endif
 136         int ex=1,x509=0,days=30;
 137         X509 *x509ss=NULL;
 138         X509_REQ *req=NULL;
 139         EVP_PKEY *pkey=NULL;
 140         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
 141         BIO *in=NULL,*out=NULL;
 142         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
 143         int nodes=0,kludge=0;
 144         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
 145         char *extensions = NULL;
 146         char *req_exts = NULL;
 147         EVP_CIPHER *cipher=NULL;
 148         int modulus=0;
 149         char *p;
 150         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
 151 #ifndef MONOLITH
 152         MS_STATIC char config_name[256];
 153 #endif
 154
 155         req_conf = NULL;
 156 #ifndef NO_DES
 157         cipher=EVP_des_ede3_cbc();
 158 #endif
 159         apps_startup();
 160
 161         if (bio_err == NULL)
 162                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 163                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 164
 165         infile=NULL;
 166         outfile=NULL;
 167         informat=FORMAT_PEM;
 168         outformat=FORMAT_PEM;
 169
 170         prog=argv[0];
 171         argc--;
 172         argv++;
 173         while (argc >= 1)
 174                 {
 175                 if      (strcmp(*argv,"-inform") == 0)
 176                         {
 177                         if (--argc < 1) goto bad;
 178                         informat=str2fmt(*(++argv));
 179                         }
 180                 else if (strcmp(*argv,"-outform") == 0)
 181                         {
 182                         if (--argc < 1) goto bad;
 183                         outformat=str2fmt(*(++argv));
 184                         }
 185                 else if (strcmp(*argv,"-key") == 0)
 186                         {
 187                         if (--argc < 1) goto bad;
 188                         keyfile= *(++argv);
 189                         }
 190                 else if (strcmp(*argv,"-new") == 0)
 191                         {
 192                         pkey_type=TYPE_RSA;
 193                         newreq=1;
 194                         }
 195                 else if (strcmp(*argv,"-config") == 0)
 196                         {
 197                         if (--argc < 1) goto bad;
 198                         template= *(++argv);
 199                         }
 200                 else if (strcmp(*argv,"-keyform") == 0)
 201                         {
 202                         if (--argc < 1) goto bad;
 203                         keyform=str2fmt(*(++argv));
 204                         }
 205                 else if (strcmp(*argv,"-in") == 0)
 206                         {
 207                         if (--argc < 1) goto bad;
 208                         infile= *(++argv);
 209                         }
 210                 else if (strcmp(*argv,"-out") == 0)
 211                         {
 212                         if (--argc < 1) goto bad;
 213                         outfile= *(++argv);
 214                         }
 215                 else if (strcmp(*argv,"-keyout") == 0)
 216                         {
 217                         if (--argc < 1) goto bad;
 218                         keyout= *(++argv);
 219                         }
 220                 else if (strcmp(*argv,"-newkey") == 0)
 221                         {
 222                         int is_numeric;
 223
 224                         if (--argc < 1) goto bad;
 225                         p= *(++argv);
 226                         is_numeric = p[0] >= '0' && p[0] <= '9';
 227                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
 228                                 {
 229                                 pkey_type=TYPE_RSA;
 230                                 if(!is_numeric)
 231                                     p+=4;
 232                                 newkey= atoi(p);
 233                                 }
 234                         else
 235 #ifndef NO_DSA
 236                                 if (strncmp("dsa:",p,4) == 0)
 237                                 {
 238                                 X509 *xtmp=NULL;
 239                                 EVP_PKEY *dtmp;
 240
 241                                 pkey_type=TYPE_DSA;
 242                                 p+=4;
 243                                 if ((in=BIO_new_file(p,"r")) == NULL)
 244                                         {
 245                                         perror(p);
 246                                         goto end;
 247                                         }
 248                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
 249                                         {
 250                                         ERR_clear_error();
 251                                         (void)BIO_reset(in);
 252                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
 253                                                 {
 254                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
 255                                                 goto end;
 256                                                 }
 257
 258                                         dtmp=X509_get_pubkey(xtmp);
 259                                         if (dtmp->type == EVP_PKEY_DSA)
 260                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
 261                                         EVP_PKEY_free(dtmp);
 262                                         X509_free(xtmp);
 263                                         if (dsa_params == NULL)
 264                                                 {
 265                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
 266                                                 goto end;
 267                                                 }
 268                                         }
 269                                 BIO_free(in);
 270                                 newkey=BN_num_bits(dsa_params->p);
 271                                 in=NULL;
 272                                 }
 273                         else
 274 #endif
 275 #ifndef NO_DH
 276                                 if (strncmp("dh:",p,4) == 0)
 277                                 {
 278                                 pkey_type=TYPE_DH;
 279                                 p+=3;
 280                                 }
 281                         else
 282 #endif
 283                                 pkey_type=TYPE_RSA;
 284
 285                         newreq=1;
 286                         }
 287                 else if (strcmp(*argv,"-modulus") == 0)
 288                         modulus=1;
 289                 else if (strcmp(*argv,"-verify") == 0)
 290                         verify=1;
 291                 else if (strcmp(*argv,"-nodes") == 0)
 292                         nodes=1;
 293                 else if (strcmp(*argv,"-noout") == 0)
 294                         noout=1;
 295                 else if (strcmp(*argv,"-text") == 0)
 296                         text=1;
 297                 else if (strcmp(*argv,"-x509") == 0)
 298                         x509=1;
 299                 else if (strcmp(*argv,"-asn1-kludge") == 0)
 300                         kludge=1;
 301                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
 302                         kludge=0;
 303                 else if (strcmp(*argv,"-days") == 0)
 304                         {
 305                         if (--argc < 1) goto bad;
 306                         days= atoi(*(++argv));
 307                         if (days == 0) days=30;
 308                         }
 309                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 310                         {
 311                         /* ok */
 312                         digest=md_alg;
 313                         }
 314                 else if (strcmp(*argv,"-extensions") == 0)
 315                         {
 316                         if (--argc < 1) goto bad;
 317                         extensions = *(++argv);
 318                         }
 319                 else if (strcmp(*argv,"-reqexts") == 0)
 320                         {
 321                         if (--argc < 1) goto bad;
 322                         req_exts = *(++argv);
 323                         }
 324                 else
 325                         {
 326                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 327                         badops=1;
 328                         break;
 329                         }
 330                 argc--;
 331                 argv++;
 332                 }
 333
 334         if (badops)
 335                 {
 336 bad:
 337                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
 338                 BIO_printf(bio_err,"where options  are\n");
 339                 BIO_printf(bio_err," -inform arg    input format - one of DER TXT PEM\n");
 340                 BIO_printf(bio_err," -outform arg   output format - one of DER TXT PEM\n");
 341                 BIO_printf(bio_err," -in arg        input file\n");
 342                 BIO_printf(bio_err," -out arg       output file\n");
 343                 BIO_printf(bio_err," -text          text form of request\n");
 344                 BIO_printf(bio_err," -noout         do not output REQ\n");
 345                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
 346                 BIO_printf(bio_err," -modulus       RSA modulus\n");
 347                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
 348                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
 349                 BIO_printf(bio_err," -keyform arg   key file format\n");
 350                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
 351                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
 352                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
 353
 354                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
 355                 BIO_printf(bio_err," -config file   request template file.\n");
 356                 BIO_printf(bio_err," -new           new request.\n");
 357                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
 358                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
 359                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
 360                 BIO_printf(bio_err,"                have been reported as requiring\n");
 361                 BIO_printf(bio_err,"                [ It is now always turned on but can be turned off with -no-asn1-kludge ]\n");
 362                 BIO_printf(bio_err," -extensions .. specify certificate extension section (override value in config file)\n");
 363                 BIO_printf(bio_err," -reqexts ..    specify request extension section (override value in config file)\n");
 364                 goto end;
 365                 }
 366
 367         ERR_load_crypto_strings();
 368         X509V3_add_standard_extensions();
 369
 370 #ifndef MONOLITH
 371         /* Lets load up our environment a little */
 372         p=getenv("OPENSSL_CONF");
 373         if (p == NULL)
 374                 p=getenv("SSLEAY_CONF");
 375         if (p == NULL)
 376                 {
 377                 strcpy(config_name,X509_get_default_cert_area());
 378 #ifndef VMS
 379                 strcat(config_name,"/");
 380 #endif
 381                 strcat(config_name,OPENSSL_CONF);
 382                 p=config_name;
 383                 }
 384         default_config_file=p;
 385         config=CONF_load(config,p,NULL);
 386 #endif
 387
 388         if (template != NULL)
 389                 {
 390                 long errline;
 391
 392                 BIO_printf(bio_err,"Using configuration from %s\n",template);
 393                 req_conf=CONF_load(NULL,template,&errline);
 394                 if (req_conf == NULL)
 395                         {
 396                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
 397                         goto end;
 398                         }
 399                 }
 400         else
 401                 {
 402                 req_conf=config;
 403                 BIO_printf(bio_err,"Using configuration from %s\n",
 404                         default_config_file);
 405                 if (req_conf == NULL)
 406                         {
 407                         BIO_printf(bio_err,"Unable to load config info\n");
 408                         }
 409                 }
 410
 411         if (req_conf != NULL)
 412                 {
 413                 p=CONF_get_string(req_conf,NULL,"oid_file");
 414                 if (p != NULL)
 415                         {
 416                         BIO *oid_bio;
 417
 418                         oid_bio=BIO_new_file(p,"r");
 419                         if (oid_bio == NULL)
 420                                 {
 421                                 /*
 422                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
 423                                 ERR_print_errors(bio_err);
 424                                 */
 425                                 }
 426                         else
 427                                 {
 428                                 OBJ_create_objects(oid_bio);
 429                                 BIO_free(oid_bio);
 430                                 }
 431                         }
 432                 }
 433                 if(!add_oid_section(req_conf)) goto end;
 434
 435         if ((md_alg == NULL) &&
 436                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
 437                 {
 438                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
 439                         digest=md_alg;
 440                 }
 441
 442         if(!extensions)
 443                 extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
 444         if(extensions) {
 445                 /* Check syntax of file */
 446                 X509V3_CTX ctx;
 447                 X509V3_set_ctx_test(&ctx);
 448                 X509V3_set_conf_lhash(&ctx, req_conf);
 449                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
 450                         BIO_printf(bio_err,
 451                          "Error Loading extension section %s\n", extensions);
 452                         goto end;
 453                 }
 454         }
 455
 456         if(!req_exts)
 457                 req_exts = CONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
 458         if(req_exts) {
 459                 /* Check syntax of file */
 460                 X509V3_CTX ctx;
 461                 X509V3_set_ctx_test(&ctx);
 462                 X509V3_set_conf_lhash(&ctx, req_conf);
 463                 if(!X509V3_EXT_add_conf(req_conf, &ctx, req_exts, NULL)) {
 464                         BIO_printf(bio_err,
 465                          "Error Loading request extension section %s\n",
 466                                                                 req_exts);
 467                         goto end;
 468                 }
 469         }
 470
 471         in=BIO_new(BIO_s_file());
 472         out=BIO_new(BIO_s_file());
 473         if ((in == NULL) || (out == NULL))
 474                 goto end;
 475
 476         if (keyfile != NULL)
 477                 {
 478                 if (BIO_read_filename(in,keyfile) <= 0)
 479                         {
 480                         perror(keyfile);
 481                         goto end;
 482                         }
 483
 484 /*              if (keyform == FORMAT_ASN1)
 485                         rsa=d2i_RSAPrivateKey_bio(in,NULL);
 486                 else */
 487                 if (keyform == FORMAT_PEM)
 488                         pkey=PEM_read_bio_PrivateKey(in,NULL,NULL,NULL);
 489                 else
 490                         {
 491                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 492                         goto end;
 493                         }
 494
 495                 if (pkey == NULL)
 496                         {
 497                         BIO_printf(bio_err,"unable to load Private key\n");
 498                         goto end;
 499                         }
 500                 }
 501
 502         if (newreq && (pkey == NULL))
 503                 {
 504                 char *randfile;
 505                 char buffer[200];
 506
 507                 if ((randfile=CONF_get_string(req_conf,SECTION,"RANDFILE")) == NULL)
 508                         randfile=RAND_file_name(buffer,200);
 509 #ifdef WINDOWS
 510                 BIO_printf(bio_err,"Loading 'screen' into random state -");
 511                 BIO_flush(bio_err);
 512                 RAND_screen();
 513                 BIO_printf(bio_err," done\n");
 514 #endif
 515                 if ((randfile == NULL) || !RAND_load_file(randfile,1024L*1024L))
 516                         {
 517                         BIO_printf(bio_err,"unable to load 'random state'\n");
 518                         BIO_printf(bio_err,"What this means is that the random number generator has not been seeded\n");
 519                         BIO_printf(bio_err,"with much random data.\n");
 520                         BIO_printf(bio_err,"Consider setting the RANDFILE environment variable to point at a file that\n");
 521                         BIO_printf(bio_err,"'random' data can be kept in.\n");
 522                         }
 523                 if (newkey <= 0)
 524                         {
 525                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
 526                         if (newkey <= 0)
 527                                 newkey=DEFAULT_KEY_LENGTH;
 528                         }
 529
 530                 if (newkey < MIN_KEY_LENGTH)
 531                         {
 532                         BIO_printf(bio_err,"private key length is too short,\n");
 533                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
 534                         goto end;
 535                         }
 536                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
 537                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
 538
 539                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
 540
 541 #ifndef NO_RSA
 542                 if (pkey_type == TYPE_RSA)
 543                         {
 544                         if (!EVP_PKEY_assign_RSA(pkey,
 545                                 RSA_generate_key(newkey,0x10001,
 546                                         req_cb,bio_err)))
 547                                 goto end;
 548                         }
 549                 else
 550 #endif
 551 #ifndef NO_DSA
 552                         if (pkey_type == TYPE_DSA)
 553                         {
 554                         if (!DSA_generate_key(dsa_params)) goto end;
 555                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
 556                         dsa_params=NULL;
 557                         }
 558 #endif
 559
 560                 if ((randfile == NULL) || (RAND_write_file(randfile) == 0))
 561                         BIO_printf(bio_err,"unable to write 'random state'\n");
 562
 563                 if (pkey == NULL) goto end;
 564
 565                 if (keyout == NULL)
 566                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
 567
 568                 if (keyout == NULL)
 569                         {
 570                         BIO_printf(bio_err,"writing new private key to stdout\n");
 571                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
 572                         }
 573                 else
 574                         {
 575                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
 576                         if (BIO_write_filename(out,keyout) <= 0)
 577                                 {
 578                                 perror(keyout);
 579                                 goto end;
 580                                 }
 581                         }
 582
 583                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
 584                 if (p == NULL)
 585                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
 586                 if ((p != NULL) && (strcmp(p,"no") == 0))
 587                         cipher=NULL;
 588                 if (nodes) cipher=NULL;
 589
 590                 i=0;
 591 loop:
 592                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
 593                         NULL,0,NULL,NULL))
 594                         {
 595                         if ((ERR_GET_REASON(ERR_peek_error()) ==
 596                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
 597                                 {
 598                                 ERR_clear_error();
 599                                 i++;
 600                                 goto loop;
 601                                 }
 602                         goto end;
 603                         }
 604                 BIO_printf(bio_err,"-----\n");
 605                 }
 606
 607         if (!newreq)
 608                 {
 609                 /* Since we are using a pre-existing certificate
 610                  * request, the kludge 'format' info should not be
 611                  * changed. */
 612                 kludge= -1;
 613                 if (infile == NULL)
 614                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
 615                 else
 616                         {
 617                         if (BIO_read_filename(in,infile) <= 0)
 618                                 {
 619                                 perror(infile);
 620                                 goto end;
 621                                 }
 622                         }
 623
 624                 if      (informat == FORMAT_ASN1)
 625                         req=d2i_X509_REQ_bio(in,NULL);
 626                 else if (informat == FORMAT_PEM)
 627                         req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
 628                 else
 629                         {
 630                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 631                         goto end;
 632                         }
 633                 if (req == NULL)
 634                         {
 635                         BIO_printf(bio_err,"unable to load X509 request\n");
 636                         goto end;
 637                         }
 638                 }
 639
 640         if (newreq || x509)
 641                 {
 642 #ifndef NO_DSA
 643                 if (pkey->type == EVP_PKEY_DSA)
 644                         digest=EVP_dss1();
 645 #endif
 646
 647                 if (pkey == NULL)
 648                         {
 649                         BIO_printf(bio_err,"you need to specify a private key\n");
 650                         goto end;
 651                         }
 652                 if (req == NULL)
 653                         {
 654                         req=X509_REQ_new();
 655                         if (req == NULL)
 656                                 {
 657                                 goto end;
 658                                 }
 659
 660                         i=make_REQ(req,pkey,!x509);
 661                         if (kludge >= 0)
 662                                 req->req_info->req_kludge=kludge;
 663                         if (!i)
 664                                 {
 665                                 BIO_printf(bio_err,"problems making Certificate Request\n");
 666                                 goto end;
 667                                 }
 668                         }
 669                 if (x509)
 670                         {
 671                         EVP_PKEY *tmppkey;
 672                         X509V3_CTX ext_ctx;
 673                         if ((x509ss=X509_new()) == NULL) goto end;
 674
 675                         /* Set version to V3 */
 676                         if(!X509_set_version(x509ss, 2)) goto end;
 677                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
 678
 679                         X509_set_issuer_name(x509ss,
 680                                 X509_REQ_get_subject_name(req));
 681                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
 682                         X509_gmtime_adj(X509_get_notAfter(x509ss),
 683                                 (long)60*60*24*days);
 684                         X509_set_subject_name(x509ss,
 685                                 X509_REQ_get_subject_name(req));
 686                         tmppkey = X509_REQ_get_pubkey(req);
 687                         X509_set_pubkey(x509ss,tmppkey);
 688                         EVP_PKEY_free(tmppkey);
 689
 690                         /* Set up V3 context struct */
 691
 692                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
 693                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 694
 695                         /* Add extensions */
 696                         if(extensions && !X509V3_EXT_add_conf(req_conf,
 697                                         &ext_ctx, extensions, x509ss))
 698                             {
 699                             BIO_printf(bio_err,
 700                                        "Error Loading extension section %s\n",
 701                                        extensions);
 702                             goto end;
 703                             }
 704
 705                         if (!(i=X509_sign(x509ss,pkey,digest)))
 706                                 goto end;
 707                         }
 708                 else
 709                         {
 710                         X509V3_CTX ext_ctx;
 711
 712                         /* Set up V3 context struct */
 713
 714                         X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
 715                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 716
 717                         /* Add extensions */
 718                         if(req_exts && !X509V3_EXT_REQ_add_conf(req_conf,
 719                                         &ext_ctx, req_exts, req))
 720                             {
 721                             BIO_printf(bio_err,
 722                                        "Error Loading extension section %s\n",
 723                                        req_exts);
 724                             goto end;
 725                             }
 726                         if (!(i=X509_REQ_sign(req,pkey,digest)))
 727                                 goto end;
 728                         }
 729                 }
 730
 731         if (verify && !x509)
 732                 {
 733                 int tmp=0;
 734
 735                 if (pkey == NULL)
 736                         {
 737                         pkey=X509_REQ_get_pubkey(req);
 738                         tmp=1;
 739                         if (pkey == NULL) goto end;
 740                         }
 741
 742                 i=X509_REQ_verify(req,pkey);
 743                 if (tmp) {
 744                         EVP_PKEY_free(pkey);
 745                         pkey=NULL;
 746                 }
 747
 748                 if (i < 0)
 749                         {
 750                         goto end;
 751                         }
 752                 else if (i == 0)
 753                         {
 754                         BIO_printf(bio_err,"verify failure\n");
 755                         }
 756                 else /* if (i > 0) */
 757                         BIO_printf(bio_err,"verify OK\n");
 758                 }
 759
 760         if (noout && !text && !modulus)
 761                 {
 762                 ex=0;
 763                 goto end;
 764                 }
 765
 766         if (outfile == NULL)
 767                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 768         else
 769                 {
 770                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
 771                         i=(int)BIO_append_filename(out,outfile);
 772                 else
 773                         i=(int)BIO_write_filename(out,outfile);
 774                 if (!i)
 775                         {
 776                         perror(outfile);
 777                         goto end;
 778                         }
 779                 }
 780
 781         if (text)
 782                 {
 783                 if (x509)
 784                         X509_print(out,x509ss);
 785                 else
 786                         X509_REQ_print(out,req);
 787                 }
 788
 789         if (modulus)
 790                 {
 791                 EVP_PKEY *pubkey;
 792
 793                 if (x509)
 794                         pubkey=X509_get_pubkey(x509ss);
 795                 else
 796                         pubkey=X509_REQ_get_pubkey(req);
 797                 if (pubkey == NULL)
 798                         {
 799                         fprintf(stdout,"Modulus=unavailable\n");
 800                         goto end;
 801                         }
 802                 fprintf(stdout,"Modulus=");
 803 #ifndef NO_RSA
 804                 if (pubkey->type == EVP_PKEY_RSA)
 805                         BN_print(out,pubkey->pkey.rsa->n);
 806                 else
 807 #endif
 808                         fprintf(stdout,"Wrong Algorithm type");
 809                 fprintf(stdout,"\n");
 810                 }
 811
 812         if (!noout && !x509)
 813                 {
 814                 if      (outformat == FORMAT_ASN1)
 815                         i=i2d_X509_REQ_bio(out,req);
 816                 else if (outformat == FORMAT_PEM)
 817                         i=PEM_write_bio_X509_REQ(out,req);
 818                 else    {
 819                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 820                         goto end;
 821                         }
 822                 if (!i)
 823                         {
 824                         BIO_printf(bio_err,"unable to write X509 request\n");
 825                         goto end;
 826                         }
 827                 }
 828         if (!noout && x509 && (x509ss != NULL))
 829                 {
 830                 if      (outformat == FORMAT_ASN1)
 831                         i=i2d_X509_bio(out,x509ss);
 832                 else if (outformat == FORMAT_PEM)
 833                         i=PEM_write_bio_X509(out,x509ss);
 834                 else    {
 835                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 836                         goto end;
 837                         }
 838                 if (!i)
 839                         {
 840                         BIO_printf(bio_err,"unable to write X509 certificate\n");
 841                         goto end;
 842                         }
 843                 }
 844         ex=0;
 845 end:
 846         if (ex)
 847                 {
 848                 ERR_print_errors(bio_err);
 849                 }
 850         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
 851         BIO_free(in);
 852         BIO_free(out);
 853         EVP_PKEY_free(pkey);
 854         X509_REQ_free(req);
 855         X509_free(x509ss);
 856         X509V3_EXT_cleanup();
 857         OBJ_cleanup();
 858 #ifndef NO_DSA
 859         if (dsa_params != NULL) DSA_free(dsa_params);
 860 #endif
 861         EXIT(ex);
 862         }
 863
 864 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
 865         {
 866         int ret=0,i;
 867         char *p,*q;
 868         X509_REQ_INFO *ri;
 869         char buf[100];
 870         int nid,min,max;
 871         char *type,*def,*tmp,*value,*tmp_attr;
 872         STACK_OF(CONF_VALUE) *sk, *attr=NULL;
 873         CONF_VALUE *v;
 874
 875         tmp=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
 876         if (tmp == NULL)
 877                 {
 878                 BIO_printf(bio_err,"unable to find '%s' in config\n",
 879                         DISTINGUISHED_NAME);
 880                 goto err;
 881                 }
 882         sk=CONF_get_section(req_conf,tmp);
 883         if (sk == NULL)
 884                 {
 885                 BIO_printf(bio_err,"unable to get '%s' section\n",tmp);
 886                 goto err;
 887                 }
 888
 889         tmp_attr=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
 890         if (tmp_attr == NULL)
 891                 attr=NULL;
 892         else
 893                 {
 894                 attr=CONF_get_section(req_conf,tmp_attr);
 895                 if (attr == NULL)
 896                         {
 897                         BIO_printf(bio_err,"unable to get '%s' section\n",tmp_attr);
 898                         goto err;
 899                         }
 900                 }
 901
 902         ri=req->req_info;
 903
 904         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
 905         BIO_printf(bio_err,"into your certificate request.\n");
 906         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
 907         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
 908         BIO_printf(bio_err,"For some fields there will be a default value,\n");
 909         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
 910         BIO_printf(bio_err,"-----\n");
 911
 912         /* setup version number */
 913         if (!ASN1_INTEGER_set(ri->version,0L)) goto err; /* version 1 */
 914
 915         if (sk_CONF_VALUE_num(sk))
 916                 {
 917                 i= -1;
 918 start:          for (;;)
 919                         {
 920                         i++;
 921                         if (sk_CONF_VALUE_num(sk) <= i) break;
 922
 923                         v=sk_CONF_VALUE_value(sk,i);
 924                         p=q=NULL;
 925                         type=v->name;
 926                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
 927                                 !check_end(type,"_default") ||
 928                                          !check_end(type,"_value")) continue;
 929                         /* Skip past any leading X. X: X, etc to allow for
 930                          * multiple instances
 931                          */
 932                         for(p = v->name; *p ; p++)
 933                                 if ((*p == ':') || (*p == ',') ||
 934                                                          (*p == '.')) {
 935                                         p++;
 936                                         if(*p) type = p;
 937                                         break;
 938                                 }
 939                         /* If OBJ not recognised ignore it */
 940                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
 941                         sprintf(buf,"%s_default",v->name);
 942                         if ((def=CONF_get_string(req_conf,tmp,buf)) == NULL)
 943                                 def="";
 944
 945                         sprintf(buf,"%s_value",v->name);
 946                         if ((value=CONF_get_string(req_conf,tmp,buf)) == NULL)
 947                                 value=NULL;
 948
 949                         sprintf(buf,"%s_min",v->name);
 950                         min=(int)CONF_get_number(req_conf,tmp,buf);
 951
 952                         sprintf(buf,"%s_max",v->name);
 953                         max=(int)CONF_get_number(req_conf,tmp,buf);
 954
 955                         if (!add_DN_object(ri->subject,v->value,def,value,nid,
 956                                 min,max))
 957                                 goto err;
 958                         }
 959                 if (sk_X509_NAME_ENTRY_num(ri->subject->entries) == 0)
 960                         {
 961                         BIO_printf(bio_err,"error, no objects specified in config file\n");
 962                         goto err;
 963                         }
 964
 965                 if (attribs)
 966                         {
 967                         if ((attr != NULL) && (sk_CONF_VALUE_num(attr) > 0))
 968                                 {
 969                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
 970                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
 971                                 }
 972
 973                         i= -1;
 974 start2:                 for (;;)
 975                                 {
 976                                 i++;
 977                                 if ((attr == NULL) ||
 978                                             (sk_CONF_VALUE_num(attr) <= i))
 979                                         break;
 980
 981                                 v=sk_CONF_VALUE_value(attr,i);
 982                                 type=v->name;
 983                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
 984                                         goto start2;
 985
 986                                 sprintf(buf,"%s_default",type);
 987                                 if ((def=CONF_get_string(req_conf,tmp_attr,buf))
 988                                         == NULL)
 989                                         def="";
 990
 991                                 sprintf(buf,"%s_value",type);
 992                                 if ((value=CONF_get_string(req_conf,tmp_attr,buf))
 993                                         == NULL)
 994                                         value=NULL;
 995
 996                                 sprintf(buf,"%s_min",type);
 997                                 min=(int)CONF_get_number(req_conf,tmp_attr,buf);
 998
 999                                 sprintf(buf,"%s_max",type);
1000                                 max=(int)CONF_get_number(req_conf,tmp_attr,buf);
1001
1002                                 if (!add_attribute_object(ri->attributes,
1003                                         v->value,def,value,nid,min,max))
1004                                         goto err;
1005                                 }
1006                         }
1007                 }
1008         else
1009                 {
1010                 BIO_printf(bio_err,"No template, please set one up.\n");
1011                 goto err;
1012                 }
1013
1014         X509_REQ_set_pubkey(req,pkey);
1015
1016         ret=1;
1017 err:
1018         return(ret);
1019         }
1020
1021 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
1022              int nid, int min, int max)
1023         {
1024         int i,j,ret=0;
1025         X509_NAME_ENTRY *ne=NULL;
1026         MS_STATIC char buf[1024];
1027
1028         BIO_printf(bio_err,"%s [%s]:",text,def);
1029         (void)BIO_flush(bio_err);
1030         if (value != NULL)
1031                 {
1032                 strcpy(buf,value);
1033                 strcat(buf,"\n");
1034                 BIO_printf(bio_err,"%s\n",value);
1035                 }
1036         else
1037                 {
1038                 buf[0]='\0';
1039                 fgets(buf,1024,stdin);
1040                 }
1041
1042         if (buf[0] == '\0') return(0);
1043         else if (buf[0] == '\n')
1044                 {
1045                 if ((def == NULL) || (def[0] == '\0'))
1046                         return(1);
1047                 strcpy(buf,def);
1048                 strcat(buf,"\n");
1049                 }
1050         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1051
1052         i=strlen(buf);
1053         if (buf[i-1] != '\n')
1054                 {
1055                 BIO_printf(bio_err,"weird input :-(\n");
1056                 return(0);
1057                 }
1058         buf[--i]='\0';
1059
1060         j=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1061         if (req_fix_data(nid,&j,i,min,max) == 0)
1062                 goto err;
1063 #ifdef CHARSET_EBCDIC
1064         ebcdic2ascii(buf, buf, i);
1065 #endif
1066         if ((ne=X509_NAME_ENTRY_create_by_NID(NULL,nid,j,(unsigned char *)buf,
1067                 strlen(buf)))
1068                 == NULL) goto err;
1069         if (!X509_NAME_add_entry(n,ne,X509_NAME_entry_count(n),0))
1070                 goto err;
1071
1072         ret=1;
1073 err:
1074         if (ne != NULL) X509_NAME_ENTRY_free(ne);
1075         return(ret);
1076         }
1077
1078 static int add_attribute_object(STACK_OF(X509_ATTRIBUTE) *n, char *text,
1079                                 char *def, char *value, int nid, int min,
1080                                 int max)
1081         {
1082         int i,z;
1083         X509_ATTRIBUTE *xa=NULL;
1084         static char buf[1024];
1085         ASN1_BIT_STRING *bs=NULL;
1086         ASN1_TYPE *at=NULL;
1087
1088 start:
1089         BIO_printf(bio_err,"%s [%s]:",text,def);
1090         (void)BIO_flush(bio_err);
1091         if (value != NULL)
1092                 {
1093                 strcpy(buf,value);
1094                 strcat(buf,"\n");
1095                 BIO_printf(bio_err,"%s\n",value);
1096                 }
1097         else
1098                 {
1099                 buf[0]='\0';
1100                 fgets(buf,1024,stdin);
1101                 }
1102
1103         if (buf[0] == '\0') return(0);
1104         else if (buf[0] == '\n')
1105                 {
1106                 if ((def == NULL) || (def[0] == '\0'))
1107                         return(1);
1108                 strcpy(buf,def);
1109                 strcat(buf,"\n");
1110                 }
1111         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1112
1113         i=strlen(buf);
1114         if (buf[i-1] != '\n')
1115                 {
1116                 BIO_printf(bio_err,"weird input :-(\n");
1117                 return(0);
1118                 }
1119         buf[--i]='\0';
1120
1121         /* add object plus value */
1122         if ((xa=X509_ATTRIBUTE_new()) == NULL)
1123                 goto err;
1124         if ((xa->value.set=sk_ASN1_TYPE_new_null()) == NULL)
1125                 goto err;
1126         xa->set=1;
1127
1128         if (xa->object != NULL) ASN1_OBJECT_free(xa->object);
1129         xa->object=OBJ_nid2obj(nid);
1130
1131         if ((bs=ASN1_BIT_STRING_new()) == NULL) goto err;
1132
1133         bs->type=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1134
1135         z=req_fix_data(nid,&bs->type,i,min,max);
1136         if (z == 0)
1137                 {
1138                 if (value == NULL)
1139                         goto start;
1140                 else    goto err;
1141                 }
1142
1143         if (!ASN1_STRING_set(bs,(unsigned char *)buf,i+1))
1144                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1145
1146         if ((at=ASN1_TYPE_new()) == NULL)
1147                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1148
1149         ASN1_TYPE_set(at,bs->type,(char *)bs);
1150         sk_ASN1_TYPE_push(xa->value.set,at);
1151         bs=NULL;
1152         at=NULL;
1153         /* only one item per attribute */
1154
1155         if (!sk_X509_ATTRIBUTE_push(n,xa)) goto err;
1156         return(1);
1157 err:
1158         if (xa != NULL) X509_ATTRIBUTE_free(xa);
1159         if (at != NULL) ASN1_TYPE_free(at);
1160         if (bs != NULL) ASN1_BIT_STRING_free(bs);
1161         return(0);
1162         }
1163
1164 static void MS_CALLBACK req_cb(int p, int n, void *arg)
1165         {
1166         char c='*';
1167
1168         if (p == 0) c='.';
1169         if (p == 1) c='+';
1170         if (p == 2) c='*';
1171         if (p == 3) c='\n';
1172         BIO_write((BIO *)arg,&c,1);
1173         (void)BIO_flush((BIO *)arg);
1174 #ifdef LINT
1175         p=n;
1176 #endif
1177         }
1178
1179 static int req_fix_data(int nid, int *type, int len, int min, int max)
1180         {
1181         if (nid == NID_pkcs9_emailAddress)
1182                 *type=V_ASN1_IA5STRING;
1183         if ((nid == NID_commonName) && (*type == V_ASN1_IA5STRING))
1184                 *type=V_ASN1_T61STRING;
1185         if ((nid == NID_pkcs9_challengePassword) &&
1186                 (*type == V_ASN1_IA5STRING))
1187                 *type=V_ASN1_T61STRING;
1188
1189         if ((nid == NID_pkcs9_unstructuredName) &&
1190                 (*type == V_ASN1_T61STRING))
1191                 {
1192                 BIO_printf(bio_err,"invalid characters in string, please re-enter the string\n");
1193                 return(0);
1194                 }
1195         if (nid == NID_pkcs9_unstructuredName)
1196                 *type=V_ASN1_IA5STRING;
1197
1198         if (len < min)
1199                 {
1200                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1201                 return(0);
1202                 }
1203         if ((max != 0) && (len > max))
1204                 {
1205                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1206                 return(0);
1207                 }
1208         return(1);
1209         }
1210
1211 /* Check if the end of a string matches 'end' */
1212 static int check_end(char *str, char *end)
1213 {
1214         int elen, slen;
1215         char *tmp;
1216         elen = strlen(end);
1217         slen = strlen(str);
1218         if(elen > slen) return 1;
1219         tmp = str + slen - elen;
1220         return strcmp(tmp, end);
1221 }
1222
1223 static int add_oid_section(LHASH *conf)
1224 {
1225         char *p;
1226         STACK_OF(CONF_VALUE) *sktmp;
1227         CONF_VALUE *cnf;
1228         int i;
1229         if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
1230         if(!(sktmp = CONF_get_section(conf, p))) {
1231                 BIO_printf(bio_err, "problem loading oid section %s\n", p);
1232                 return 0;
1233         }
1234         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
1235                 cnf = sk_CONF_VALUE_value(sktmp, i);
1236                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
1237                         BIO_printf(bio_err, "problem creating object %s=%s\n",
1238                                                          cnf->name, cnf->value);
1239                         return 0;
1240                 }
1241         }
1242         return 1;
1243 }