apps/x509.c

   1 /* apps/x509.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 <string.h>
  62 #ifdef NO_STDIO
  63 #define APPS_WIN16
  64 #endif
  65 #include "apps.h"
  66 #include <openssl/bio.h>
  67 #include <openssl/asn1.h>
  68 #include <openssl/err.h>
  69 #include <openssl/bn.h>
  70 #include <openssl/evp.h>
  71 #include <openssl/x509.h>
  72 #include <openssl/x509v3.h>
  73 #include <openssl/objects.h>
  74 #include <openssl/pem.h>
  75
  76 #undef PROG
  77 #define PROG x509_main
  78
  79 #undef POSTFIX
  80 #define POSTFIX ".srl"
  81 #define DEF_DAYS        30
  82
  83 #define CERT_HDR        "certificate"
  84
  85 static char *x509_usage[]={
  86 "usage: x509 args\n",
  87 " -inform arg     - input format - default PEM (one of DER, NET or PEM)\n",
  88 " -outform arg    - output format - default PEM (one of DER, NET or PEM\n",
  89 " -keyform arg    - private key format - default PEM\n",
  90 " -CAform arg     - CA format - default PEM\n",
  91 " -CAkeyform arg  - CA key format - default PEM\n",
  92 " -in arg         - input file - default stdin\n",
  93 " -out arg        - output file - default stdout\n",
  94 " -serial         - print serial number value\n",
  95 " -hash           - print hash value\n",
  96 " -subject        - print subject DN\n",
  97 " -issuer         - print issuer DN\n",
  98 " -startdate      - notBefore field\n",
  99 " -enddate        - notAfter field\n",
 100 " -dates          - both Before and After dates\n",
 101 " -modulus        - print the RSA key modulus\n",
 102 " -fingerprint    - print the certificate fingerprint\n",
 103 " -noout          - no certificate output\n",
 104
 105 " -days arg       - How long till expiry of a signed certificate - def 30 days\n",
 106 " -signkey arg    - self sign cert with arg\n",
 107 " -x509toreq      - output a certification request object\n",
 108 " -req            - input is a certificate request, sign and output.\n",
 109 " -CA arg         - set the CA certificate, must be PEM format.\n",
 110 " -CAkey arg      - set the CA key, must be PEM format\n",
 111 "                   missing, it is asssumed to be in the CA file.\n",
 112 " -CAcreateserial - create serial number file if it does not exist\n",
 113 " -CAserial       - serial file\n",
 114 " -text           - print the certificate in text form\n",
 115 " -C              - print out C code forms\n",
 116 " -md2/-md5/-sha1/-mdc2 - digest to do an RSA sign with\n",
 117 NULL
 118 };
 119
 120 static int MS_CALLBACK callb(int ok, X509_STORE_CTX *ctx);
 121 static EVP_PKEY *load_key(char *file, int format);
 122 static X509 *load_cert(char *file, int format);
 123 static int sign (X509 *x, EVP_PKEY *pkey,int days,const EVP_MD *digest);
 124 static int x509_certify (X509_STORE *ctx,char *CAfile,const EVP_MD *digest,
 125                          X509 *x,X509 *xca,EVP_PKEY *pkey,char *serial,
 126                          int create,int days);
 127 static int reqfile=0;
 128
 129 int MAIN(int argc, char **argv)
 130         {
 131         int ret=1;
 132         X509_REQ *req=NULL;
 133         X509 *x=NULL,*xca=NULL;
 134         EVP_PKEY *Upkey=NULL,*CApkey=NULL;
 135         int i,num,badops=0;
 136         BIO *out=NULL;
 137         BIO *STDout=NULL;
 138         int informat,outformat,keyformat,CAformat,CAkeyformat;
 139         char *infile=NULL,*outfile=NULL,*keyfile=NULL,*CAfile=NULL;
 140         char *CAkeyfile=NULL,*CAserial=NULL;
 141         int text=0,serial=0,hash=0,subject=0,issuer=0,startdate=0,enddate=0;
 142         int noout=0,sign_flag=0,CA_flag=0,CA_createserial=0;
 143         int C=0;
 144         int x509req=0,days=DEF_DAYS,modulus=0;
 145         char **pp;
 146         X509_STORE *ctx=NULL;
 147         X509_REQ *rq=NULL;
 148         int fingerprint=0;
 149         char buf[256];
 150         const EVP_MD *md_alg,*digest=EVP_md5();
 151
 152         reqfile=0;
 153
 154         apps_startup();
 155
 156         if (bio_err == NULL)
 157                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 158         STDout=BIO_new_fp(stdout,BIO_NOCLOSE);
 159
 160         informat=FORMAT_PEM;
 161         outformat=FORMAT_PEM;
 162         keyformat=FORMAT_PEM;
 163         CAformat=FORMAT_PEM;
 164         CAkeyformat=FORMAT_PEM;
 165
 166         ctx=X509_STORE_new();
 167         if (ctx == NULL) goto end;
 168         X509_STORE_set_verify_cb_func(ctx,callb);
 169
 170         argc--;
 171         argv++;
 172         num=0;
 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,"-keyform") == 0)
 186                         {
 187                         if (--argc < 1) goto bad;
 188                         keyformat=str2fmt(*(++argv));
 189                         }
 190                 else if (strcmp(*argv,"-req") == 0)
 191                         reqfile=1;
 192                 else if (strcmp(*argv,"-CAform") == 0)
 193                         {
 194                         if (--argc < 1) goto bad;
 195                         CAformat=str2fmt(*(++argv));
 196                         }
 197                 else if (strcmp(*argv,"-CAkeyform") == 0)
 198                         {
 199                         if (--argc < 1) goto bad;
 200                         CAformat=str2fmt(*(++argv));
 201                         }
 202                 else if (strcmp(*argv,"-days") == 0)
 203                         {
 204                         if (--argc < 1) goto bad;
 205                         days=atoi(*(++argv));
 206                         if (days == 0)
 207                                 {
 208                                 BIO_printf(STDout,"bad number of days\n");
 209                                 goto bad;
 210                                 }
 211                         }
 212                 else if (strcmp(*argv,"-in") == 0)
 213                         {
 214                         if (--argc < 1) goto bad;
 215                         infile= *(++argv);
 216                         }
 217                 else if (strcmp(*argv,"-out") == 0)
 218                         {
 219                         if (--argc < 1) goto bad;
 220                         outfile= *(++argv);
 221                         }
 222                 else if (strcmp(*argv,"-signkey") == 0)
 223                         {
 224                         if (--argc < 1) goto bad;
 225                         keyfile= *(++argv);
 226                         sign_flag= ++num;
 227                         }
 228                 else if (strcmp(*argv,"-CA") == 0)
 229                         {
 230                         if (--argc < 1) goto bad;
 231                         CAfile= *(++argv);
 232                         CA_flag= ++num;
 233                         }
 234                 else if (strcmp(*argv,"-CAkey") == 0)
 235                         {
 236                         if (--argc < 1) goto bad;
 237                         CAkeyfile= *(++argv);
 238                         }
 239                 else if (strcmp(*argv,"-CAserial") == 0)
 240                         {
 241                         if (--argc < 1) goto bad;
 242                         CAserial= *(++argv);
 243                         }
 244                 else if (strcmp(*argv,"-C") == 0)
 245                         C= ++num;
 246                 else if (strcmp(*argv,"-serial") == 0)
 247                         serial= ++num;
 248                 else if (strcmp(*argv,"-modulus") == 0)
 249                         modulus= ++num;
 250                 else if (strcmp(*argv,"-x509toreq") == 0)
 251                         x509req= ++num;
 252                 else if (strcmp(*argv,"-text") == 0)
 253                         text= ++num;
 254                 else if (strcmp(*argv,"-hash") == 0)
 255                         hash= ++num;
 256                 else if (strcmp(*argv,"-subject") == 0)
 257                         subject= ++num;
 258                 else if (strcmp(*argv,"-issuer") == 0)
 259                         issuer= ++num;
 260                 else if (strcmp(*argv,"-fingerprint") == 0)
 261                         fingerprint= ++num;
 262                 else if (strcmp(*argv,"-dates") == 0)
 263                         {
 264                         startdate= ++num;
 265                         enddate= ++num;
 266                         }
 267                 else if (strcmp(*argv,"-startdate") == 0)
 268                         startdate= ++num;
 269                 else if (strcmp(*argv,"-enddate") == 0)
 270                         enddate= ++num;
 271                 else if (strcmp(*argv,"-noout") == 0)
 272                         noout= ++num;
 273                 else if (strcmp(*argv,"-CAcreateserial") == 0)
 274                         CA_createserial= ++num;
 275                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 276                         {
 277                         /* ok */
 278                         digest=md_alg;
 279                         }
 280                 else
 281                         {
 282                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 283                         badops=1;
 284                         break;
 285                         }
 286                 argc--;
 287                 argv++;
 288                 }
 289
 290         if (badops)
 291                 {
 292 bad:
 293                 for (pp=x509_usage; (*pp != NULL); pp++)
 294                         BIO_printf(bio_err,*pp);
 295                 goto end;
 296                 }
 297
 298         ERR_load_crypto_strings();
 299         X509V3_add_standard_extensions();
 300
 301         if (!X509_STORE_set_default_paths(ctx))
 302                 {
 303                 ERR_print_errors(bio_err);
 304                 goto end;
 305                 }
 306
 307         if ((CAkeyfile == NULL) && (CA_flag) && (CAformat == FORMAT_PEM))
 308                 { CAkeyfile=CAfile; }
 309         else if ((CA_flag) && (CAkeyfile == NULL))
 310                 {
 311                 BIO_printf(bio_err,"need to specify a CAkey if using the CA command\n");
 312                 goto end;
 313                 }
 314
 315         if (reqfile)
 316                 {
 317                 EVP_PKEY *pkey;
 318                 X509_CINF *ci;
 319                 BIO *in;
 320
 321                 if (!sign_flag && !CA_flag)
 322                         {
 323                         BIO_printf(bio_err,"We need a private key to sign with\n");
 324                         goto end;
 325                         }
 326                 in=BIO_new(BIO_s_file());
 327                 if (in == NULL)
 328                         {
 329                         ERR_print_errors(bio_err);
 330                         goto end;
 331                         }
 332
 333                 if (infile == NULL)
 334                         BIO_set_fp(in,stdin,BIO_NOCLOSE|BIO_FP_TEXT);
 335                 else
 336                         {
 337                         if (BIO_read_filename(in,infile) <= 0)
 338                                 {
 339                                 perror(infile);
 340                                 goto end;
 341                                 }
 342                         }
 343                 req=PEM_read_bio_X509_REQ(in,NULL,NULL);
 344                 BIO_free(in);
 345
 346                 if (req == NULL) { perror(infile); goto end; }
 347
 348                 if (    (req->req_info == NULL) ||
 349                         (req->req_info->pubkey == NULL) ||
 350                         (req->req_info->pubkey->public_key == NULL) ||
 351                         (req->req_info->pubkey->public_key->data == NULL))
 352                         {
 353                         BIO_printf(bio_err,"The certificate request appears to corrupted\n");
 354                         BIO_printf(bio_err,"It does not contain a public key\n");
 355                         goto end;
 356                         }
 357                 if ((pkey=X509_REQ_get_pubkey(req)) == NULL)
 358                         {
 359                         BIO_printf(bio_err,"error unpacking public key\n");
 360                         goto end;
 361                         }
 362                 i=X509_REQ_verify(req,pkey);
 363                 EVP_PKEY_free(pkey);
 364                 if (i < 0)
 365                         {
 366                         BIO_printf(bio_err,"Signature verification error\n");
 367                         ERR_print_errors(bio_err);
 368                         goto end;
 369                         }
 370                 if (i == 0)
 371                         {
 372                         BIO_printf(bio_err,"Signature did not match the certificate request\n");
 373                         goto end;
 374                         }
 375                 else
 376                         BIO_printf(bio_err,"Signature ok\n");
 377
 378                 X509_NAME_oneline(req->req_info->subject,buf,256);
 379                 BIO_printf(bio_err,"subject=%s\n",buf);
 380
 381                 if ((x=X509_new()) == NULL) goto end;
 382                 ci=x->cert_info;
 383
 384                 if (!ASN1_INTEGER_set(X509_get_serialNumber(x),0)) goto end;
 385                 if (!X509_set_issuer_name(x,req->req_info->subject)) goto end;
 386                 if (!X509_set_subject_name(x,req->req_info->subject)) goto end;
 387
 388                 X509_gmtime_adj(X509_get_notBefore(x),0);
 389                 X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days);
 390
 391 #if 0
 392                 X509_PUBKEY_free(ci->key);
 393                 ci->key=req->req_info->pubkey;
 394                 req->req_info->pubkey=NULL;
 395 #else
 396                 pkey = X509_REQ_get_pubkey(req);
 397                 X509_set_pubkey(x,pkey);
 398                 EVP_PKEY_free(pkey);
 399 #endif
 400                 }
 401         else
 402                 x=load_cert(infile,informat);
 403
 404         if (x == NULL) goto end;
 405         if (CA_flag)
 406                 {
 407                 xca=load_cert(CAfile,CAformat);
 408                 if (xca == NULL) goto end;
 409                 }
 410
 411         if (!noout || text)
 412                 {
 413                 OBJ_create("2.99999.3",
 414                         "SET.ex3","SET x509v3 extension 3");
 415
 416                 out=BIO_new(BIO_s_file());
 417                 if (out == NULL)
 418                         {
 419                         ERR_print_errors(bio_err);
 420                         goto end;
 421                         }
 422                 if (outfile == NULL)
 423                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
 424                 else
 425                         {
 426                         if (BIO_write_filename(out,outfile) <= 0)
 427                                 {
 428                                 perror(outfile);
 429                                 goto end;
 430                                 }
 431                         }
 432                 }
 433
 434         if (num)
 435                 {
 436                 for (i=1; i<=num; i++)
 437                         {
 438                         if (issuer == i)
 439                                 {
 440                                 X509_NAME_oneline(X509_get_issuer_name(x),
 441                                         buf,256);
 442                                 BIO_printf(STDout,"issuer= %s\n",buf);
 443                                 }
 444                         else if (subject == i)
 445                                 {
 446                                 X509_NAME_oneline(X509_get_subject_name(x),
 447                                         buf,256);
 448                                 BIO_printf(STDout,"subject=%s\n",buf);
 449                                 }
 450                         else if (serial == i)
 451                                 {
 452                                 BIO_printf(STDout,"serial=");
 453                                 i2a_ASN1_INTEGER(STDout,x->cert_info->serialNumber);
 454                                 BIO_printf(STDout,"\n");
 455                                 }
 456                         else if (hash == i)
 457                                 {
 458                                 BIO_printf(STDout,"%08lx\n",X509_subject_name_hash(x));
 459                                 }
 460                         else
 461                                 if (modulus == i)
 462                                 {
 463                                 EVP_PKEY *pkey;
 464
 465                                 pkey=X509_get_pubkey(x);
 466                                 if (pkey == NULL)
 467                                         {
 468                                         BIO_printf(bio_err,"Modulus=unavailable\n");
 469                                         ERR_print_errors(bio_err);
 470                                         goto end;
 471                                         }
 472                                 BIO_printf(STDout,"Modulus=");
 473 #ifndef NO_RSA
 474                                 if (pkey->type == EVP_PKEY_RSA)
 475                                         BN_print(STDout,pkey->pkey.rsa->n);
 476                                 else
 477 #endif
 478 #ifndef NO_DSA
 479                                 if (pkey->type == EVP_PKEY_DSA)
 480                                         BN_print(STDout,pkey->pkey.dsa->pub_key);
 481                                 else
 482 #endif
 483                                         BIO_printf(STDout,"Wrong Algorithm type");
 484                                 BIO_printf(STDout,"\n");
 485                                 EVP_PKEY_free(pkey);
 486                                 }
 487                         else
 488                                 if (C == i)
 489                                 {
 490                                 unsigned char *d;
 491                                 char *m;
 492                                 int y,z;
 493
 494                                 X509_NAME_oneline(X509_get_subject_name(x),
 495                                         buf,256);
 496                                 BIO_printf(STDout,"/* subject:%s */\n",buf);
 497                                 m=X509_NAME_oneline(
 498                                         X509_get_issuer_name(x),buf,256);
 499                                 BIO_printf(STDout,"/* issuer :%s */\n",buf);
 500
 501                                 z=i2d_X509(x,NULL);
 502                                 m=Malloc(z);
 503
 504                                 d=(unsigned char *)m;
 505                                 z=i2d_X509_NAME(X509_get_subject_name(x),&d);
 506                                 BIO_printf(STDout,"unsigned char XXX_subject_name[%d]={\n",z);
 507                                 d=(unsigned char *)m;
 508                                 for (y=0; y<z; y++)
 509                                         {
 510                                         BIO_printf(STDout,"0x%02X,",d[y]);
 511                                         if ((y & 0x0f) == 0x0f) BIO_printf(STDout,"\n");
 512                                         }
 513                                 if (y%16 != 0) BIO_printf(STDout,"\n");
 514                                 BIO_printf(STDout,"};\n");
 515
 516                                 z=i2d_X509_PUBKEY(X509_get_X509_PUBKEY(x),&d);
 517                                 BIO_printf(STDout,"unsigned char XXX_public_key[%d]={\n",z);
 518                                 d=(unsigned char *)m;
 519                                 for (y=0; y<z; y++)
 520                                         {
 521                                         BIO_printf(STDout,"0x%02X,",d[y]);
 522                                         if ((y & 0x0f) == 0x0f)
 523                                                 BIO_printf(STDout,"\n");
 524                                         }
 525                                 if (y%16 != 0) BIO_printf(STDout,"\n");
 526                                 BIO_printf(STDout,"};\n");
 527
 528                                 z=i2d_X509(x,&d);
 529                                 BIO_printf(STDout,"unsigned char XXX_certificate[%d]={\n",z);
 530                                 d=(unsigned char *)m;
 531                                 for (y=0; y<z; y++)
 532                                         {
 533                                         BIO_printf(STDout,"0x%02X,",d[y]);
 534                                         if ((y & 0x0f) == 0x0f)
 535                                                 BIO_printf(STDout,"\n");
 536                                         }
 537                                 if (y%16 != 0) BIO_printf(STDout,"\n");
 538                                 BIO_printf(STDout,"};\n");
 539
 540                                 Free(m);
 541                                 }
 542                         else if (text == i)
 543                                 {
 544                                 X509_print(out,x);
 545                                 }
 546                         else if (startdate == i)
 547                                 {
 548                                 BIO_puts(STDout,"notBefore=");
 549                                 ASN1_TIME_print(STDout,X509_get_notBefore(x));
 550                                 BIO_puts(STDout,"\n");
 551                                 }
 552                         else if (enddate == i)
 553                                 {
 554                                 BIO_puts(STDout,"notAfter=");
 555                                 ASN1_TIME_print(STDout,X509_get_notAfter(x));
 556                                 BIO_puts(STDout,"\n");
 557                                 }
 558                         else if (fingerprint == i)
 559                                 {
 560                                 int j;
 561                                 unsigned int n;
 562                                 unsigned char md[EVP_MAX_MD_SIZE];
 563
 564                                 if (!X509_digest(x,EVP_md5(),md,&n))
 565                                         {
 566                                         BIO_printf(bio_err,"out of memory\n");
 567                                         goto end;
 568                                         }
 569                                 BIO_printf(STDout,"MD5 Fingerprint=");
 570                                 for (j=0; j<(int)n; j++)
 571                                         {
 572                                         BIO_printf(STDout,"%02X%c",md[j],
 573                                                 (j+1 == (int)n)
 574                                                 ?'\n':':');
 575                                         }
 576                                 }
 577
 578                         /* should be in the library */
 579                         else if ((sign_flag == i) && (x509req == 0))
 580                                 {
 581                                 BIO_printf(bio_err,"Getting Private key\n");
 582                                 if (Upkey == NULL)
 583                                         {
 584                                         Upkey=load_key(keyfile,keyformat);
 585                                         if (Upkey == NULL) goto end;
 586                                         }
 587 #ifndef NO_DSA
 588                                 if (Upkey->type == EVP_PKEY_DSA)
 589                                         digest=EVP_dss1();
 590 #endif
 591
 592                                 if (!sign(x,Upkey,days,digest)) goto end;
 593                                 }
 594                         else if (CA_flag == i)
 595                                 {
 596                                 BIO_printf(bio_err,"Getting CA Private Key\n");
 597                                 if (CAkeyfile != NULL)
 598                                         {
 599                                         CApkey=load_key(CAkeyfile,CAkeyformat);
 600                                         if (CApkey == NULL) goto end;
 601                                         }
 602 #ifndef NO_DSA
 603                                 if (CApkey->type == EVP_PKEY_DSA)
 604                                         digest=EVP_dss1();
 605 #endif
 606
 607                                 if (!x509_certify(ctx,CAfile,digest,x,xca,
 608                                         CApkey,
 609                                         CAserial,CA_createserial,days))
 610                                         goto end;
 611                                 }
 612                         else if (x509req == i)
 613                                 {
 614                                 EVP_PKEY *pk;
 615
 616                                 BIO_printf(bio_err,"Getting request Private Key\n");
 617                                 if (keyfile == NULL)
 618                                         {
 619                                         BIO_printf(bio_err,"no request key file specified\n");
 620                                         goto end;
 621                                         }
 622                                 else
 623                                         {
 624                                         pk=load_key(keyfile,FORMAT_PEM);
 625                                         if (pk == NULL) goto end;
 626                                         }
 627
 628                                 BIO_printf(bio_err,"Generating certificate request\n");
 629
 630                                 rq=X509_to_X509_REQ(x,pk,EVP_md5());
 631                                 EVP_PKEY_free(pk);
 632                                 if (rq == NULL)
 633                                         {
 634                                         ERR_print_errors(bio_err);
 635                                         goto end;
 636                                         }
 637                                 if (!noout)
 638                                         {
 639                                         X509_REQ_print(out,rq);
 640                                         PEM_write_bio_X509_REQ(out,rq);
 641                                         }
 642                                 noout=1;
 643                                 }
 644                         }
 645                 }
 646
 647         if (noout)
 648                 {
 649                 ret=0;
 650                 goto end;
 651                 }
 652
 653         if      (outformat == FORMAT_ASN1)
 654                 i=i2d_X509_bio(out,x);
 655         else if (outformat == FORMAT_PEM)
 656                 i=PEM_write_bio_X509(out,x);
 657         else if (outformat == FORMAT_NETSCAPE)
 658                 {
 659                 ASN1_HEADER ah;
 660                 ASN1_OCTET_STRING os;
 661
 662                 os.data=(unsigned char *)CERT_HDR;
 663                 os.length=strlen(CERT_HDR);
 664                 ah.header= &os;
 665                 ah.data=(char *)x;
 666                 ah.meth=X509_asn1_meth();
 667
 668                 /* no macro for this one yet */
 669                 i=ASN1_i2d_bio(i2d_ASN1_HEADER,out,(unsigned char *)&ah);
 670                 }
 671         else    {
 672                 BIO_printf(bio_err,"bad output format specified for outfile\n");
 673                 goto end;
 674                 }
 675         if (!i) {
 676                 BIO_printf(bio_err,"unable to write certificate\n");
 677                 ERR_print_errors(bio_err);
 678                 goto end;
 679                 }
 680         ret=0;
 681 end:
 682         OBJ_cleanup();
 683         if (out != NULL) BIO_free(out);
 684         if (STDout != NULL) BIO_free(STDout);
 685         if (ctx != NULL) X509_STORE_free(ctx);
 686         if (req != NULL) X509_REQ_free(req);
 687         if (x != NULL) X509_free(x);
 688         if (xca != NULL) X509_free(xca);
 689         if (Upkey != NULL) EVP_PKEY_free(Upkey);
 690         if (CApkey != NULL) EVP_PKEY_free(CApkey);
 691         if (rq != NULL) X509_REQ_free(rq);
 692         X509V3_EXT_cleanup();
 693         EXIT(ret);
 694         }
 695
 696 static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
 697              X509 *x, X509 *xca, EVP_PKEY *pkey, char *serialfile, int create,
 698              int days)
 699         {
 700         int ret=0;
 701         BIO *io=NULL;
 702         MS_STATIC char buf2[1024];
 703         char *buf=NULL,*p;
 704         BIGNUM *serial=NULL;
 705         ASN1_INTEGER *bs=NULL,bs2;
 706         X509_STORE_CTX xsc;
 707         EVP_PKEY *upkey;
 708
 709         upkey = X509_get_pubkey(xca);
 710         EVP_PKEY_copy_parameters(upkey,pkey);
 711         EVP_PKEY_free(upkey);
 712
 713         X509_STORE_CTX_init(&xsc,ctx,x,NULL);
 714         buf=(char *)Malloc(EVP_PKEY_size(pkey)*2+
 715                 ((serialfile == NULL)
 716                         ?(strlen(CAfile)+strlen(POSTFIX)+1)
 717                         :(strlen(serialfile)))+1);
 718         if (buf == NULL) { BIO_printf(bio_err,"out of mem\n"); goto end; }
 719         if (serialfile == NULL)
 720                 {
 721                 strcpy(buf,CAfile);
 722                 for (p=buf; *p; p++)
 723                         if (*p == '.')
 724                                 {
 725                                 *p='\0';
 726                                 break;
 727                                 }
 728                 strcat(buf,POSTFIX);
 729                 }
 730         else
 731                 strcpy(buf,serialfile);
 732         serial=BN_new();
 733         bs=ASN1_INTEGER_new();
 734         if ((serial == NULL) || (bs == NULL))
 735                 {
 736                 ERR_print_errors(bio_err);
 737                 goto end;
 738                 }
 739
 740         io=BIO_new(BIO_s_file());
 741         if (io == NULL)
 742                 {
 743                 ERR_print_errors(bio_err);
 744                 goto end;
 745                 }
 746
 747         if (BIO_read_filename(io,buf) <= 0)
 748                 {
 749                 if (!create)
 750                         {
 751                         perror(buf);
 752                         goto end;
 753                         }
 754                 else
 755                         {
 756                         ASN1_INTEGER_set(bs,0);
 757                         BN_zero(serial);
 758                         }
 759                 }
 760         else
 761                 {
 762                 if (!a2i_ASN1_INTEGER(io,bs,buf2,1024))
 763                         {
 764                         BIO_printf(bio_err,"unable to load serial number from %s\n",buf);
 765                         ERR_print_errors(bio_err);
 766                         goto end;
 767                         }
 768                 else
 769                         {
 770                         serial=BN_bin2bn(bs->data,bs->length,serial);
 771                         if (serial == NULL)
 772                                 {
 773                                 BIO_printf(bio_err,"error converting bin 2 bn");
 774                                 goto end;
 775                                 }
 776                         }
 777                 }
 778
 779         if (!BN_add_word(serial,1))
 780                 { BIO_printf(bio_err,"add_word failure\n"); goto end; }
 781         bs2.data=(unsigned char *)buf2;
 782         bs2.length=BN_bn2bin(serial,bs2.data);
 783
 784         if (BIO_write_filename(io,buf) <= 0)
 785                 {
 786                 BIO_printf(bio_err,"error attempting to write serial number file\n");
 787                 perror(buf);
 788                 goto end;
 789                 }
 790         i2a_ASN1_INTEGER(io,&bs2);
 791         BIO_puts(io,"\n");
 792         BIO_free(io);
 793         io=NULL;
 794
 795         if (!X509_STORE_add_cert(ctx,x)) goto end;
 796
 797         /* NOTE: this certificate can/should be self signed, unless it was
 798          * a certificate request in which case it is not. */
 799         X509_STORE_CTX_set_cert(&xsc,x);
 800         if (!reqfile && !X509_verify_cert(&xsc))
 801                 goto end;
 802
 803         if (!X509_check_private_key(xca,pkey))
 804                 {
 805                 BIO_printf(bio_err,"CA certificate and CA private key do not match\n");
 806                 goto end;
 807                 }
 808
 809         if (!X509_set_issuer_name(x,X509_get_subject_name(xca))) goto end;
 810         if (!X509_set_serialNumber(x,bs)) goto end;
 811
 812         if (X509_gmtime_adj(X509_get_notBefore(x),0L) == NULL)
 813                 goto end;
 814
 815         /* hardwired expired */
 816         if (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)
 817                 goto end;
 818
 819         /* don't save DSA parameters in child if parent has them
 820          * and the parents and the childs are the same. */
 821         upkey=X509_get_pubkey(x);
 822         if (!EVP_PKEY_missing_parameters(pkey) &&
 823                 (EVP_PKEY_cmp_parameters(pkey,upkey) == 0))
 824                 {
 825                 EVP_PKEY_save_parameters(upkey,0);
 826                 /* Force a re-write */
 827                 X509_set_pubkey(x,upkey);
 828                 }
 829         EVP_PKEY_free(upkey);
 830
 831         if (!X509_sign(x,pkey,digest)) goto end;
 832         ret=1;
 833 end:
 834         X509_STORE_CTX_cleanup(&xsc);
 835         if (!ret)
 836                 ERR_print_errors(bio_err);
 837         if (buf != NULL) Free(buf);
 838         if (bs != NULL) ASN1_INTEGER_free(bs);
 839         if (io != NULL) BIO_free(io);
 840         if (serial != NULL) BN_free(serial);
 841         return(ret);
 842         }
 843
 844 static int MS_CALLBACK callb(int ok, X509_STORE_CTX *ctx)
 845         {
 846         char buf[256];
 847         int err;
 848         X509 *err_cert;
 849
 850         /* it is ok to use a self signed certificate
 851          * This case will catch both the initial ok == 0 and the
 852          * final ok == 1 calls to this function */
 853         err=X509_STORE_CTX_get_error(ctx);
 854         if (err == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
 855                 return(1);
 856
 857         /* BAD we should have gotten an error.  Normally if everything
 858          * worked X509_STORE_CTX_get_error(ctx) will still be set to
 859          * DEPTH_ZERO_SELF_.... */
 860         if (ok)
 861                 {
 862                 BIO_printf(bio_err,"error with certificate to be certified - should be self signed\n");
 863                 return(0);
 864                 }
 865         else
 866                 {
 867                 err_cert=X509_STORE_CTX_get_current_cert(ctx);
 868                 X509_NAME_oneline(X509_get_subject_name(err_cert),buf,256);
 869                 BIO_printf(bio_err,"%s\n",buf);
 870                 BIO_printf(bio_err,"error with certificate - error %d at depth %d\n%s\n",
 871                         err,X509_STORE_CTX_get_error_depth(ctx),
 872                         X509_verify_cert_error_string(err));
 873                 return(1);
 874                 }
 875         }
 876
 877 static EVP_PKEY *load_key(char *file, int format)
 878         {
 879         BIO *key=NULL;
 880         EVP_PKEY *pkey=NULL;
 881
 882         if (file == NULL)
 883                 {
 884                 BIO_printf(bio_err,"no keyfile specified\n");
 885                 goto end;
 886                 }
 887         key=BIO_new(BIO_s_file());
 888         if (key == NULL)
 889                 {
 890                 ERR_print_errors(bio_err);
 891                 goto end;
 892                 }
 893         if (BIO_read_filename(key,file) <= 0)
 894                 {
 895                 perror(file);
 896                 goto end;
 897                 }
 898 #ifndef NO_RSA
 899         if      (format == FORMAT_ASN1)
 900                 {
 901                 RSA *rsa;
 902
 903                 rsa=d2i_RSAPrivateKey_bio(key,NULL);
 904                 if (rsa != NULL)
 905                         {
 906                         if ((pkey=EVP_PKEY_new()) != NULL)
 907                                 EVP_PKEY_assign_RSA(pkey,rsa);
 908                         else
 909                                 RSA_free(rsa);
 910                         }
 911                 }
 912         else
 913 #endif
 914                 if (format == FORMAT_PEM)
 915                 {
 916                 pkey=PEM_read_bio_PrivateKey(key,NULL,NULL);
 917                 }
 918         else
 919                 {
 920                 BIO_printf(bio_err,"bad input format specified for key\n");
 921                 goto end;
 922                 }
 923 end:
 924         if (key != NULL) BIO_free(key);
 925         if (pkey == NULL)
 926                 BIO_printf(bio_err,"unable to load Private Key\n");
 927         return(pkey);
 928         }
 929
 930 static X509 *load_cert(char *file, int format)
 931         {
 932         ASN1_HEADER *ah=NULL;
 933         BUF_MEM *buf=NULL;
 934         X509 *x=NULL;
 935         BIO *cert;
 936
 937         if ((cert=BIO_new(BIO_s_file())) == NULL)
 938                 {
 939                 ERR_print_errors(bio_err);
 940                 goto end;
 941                 }
 942
 943         if (file == NULL)
 944                 BIO_set_fp(cert,stdin,BIO_NOCLOSE);
 945         else
 946                 {
 947                 if (BIO_read_filename(cert,file) <= 0)
 948                         {
 949                         perror(file);
 950                         goto end;
 951                         }
 952                 }
 953         if      (format == FORMAT_ASN1)
 954                 x=d2i_X509_bio(cert,NULL);
 955         else if (format == FORMAT_NETSCAPE)
 956                 {
 957                 unsigned char *p,*op;
 958                 int size=0,i;
 959
 960                 /* We sort of have to do it this way because it is sort of nice
 961                  * to read the header first and check it, then
 962                  * try to read the certificate */
 963                 buf=BUF_MEM_new();
 964                 for (;;)
 965                         {
 966                         if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10)))
 967                                 goto end;
 968                         i=BIO_read(cert,&(buf->data[size]),1024*10);
 969                         size+=i;
 970                         if (i == 0) break;
 971                         if (i < 0)
 972                                 {
 973                                 perror("reading certificate");
 974                                 goto end;
 975                                 }
 976                         }
 977                 p=(unsigned char *)buf->data;
 978                 op=p;
 979
 980                 /* First load the header */
 981                 if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)
 982                         goto end;
 983                 if ((ah->header == NULL) || (ah->header->data == NULL) ||
 984                         (strncmp(CERT_HDR,(char *)ah->header->data,
 985                         ah->header->length) != 0))
 986                         {
 987                         BIO_printf(bio_err,"Error reading header on certificate\n");
 988                         goto end;
 989                         }
 990                 /* header is ok, so now read the object */
 991                 p=op;
 992                 ah->meth=X509_asn1_meth();
 993                 if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)
 994                         goto end;
 995                 x=(X509 *)ah->data;
 996                 ah->data=NULL;
 997                 }
 998         else if (format == FORMAT_PEM)
 999                 x=PEM_read_bio_X509(cert,NULL,NULL);
1000         else    {
1001                 BIO_printf(bio_err,"bad input format specified for input cert\n");
1002                 goto end;
1003                 }
1004 end:
1005         if (x == NULL)
1006                 {
1007                 BIO_printf(bio_err,"unable to load certificate\n");
1008                 ERR_print_errors(bio_err);
1009                 }
1010         if (ah != NULL) ASN1_HEADER_free(ah);
1011         if (cert != NULL) BIO_free(cert);
1012         if (buf != NULL) BUF_MEM_free(buf);
1013         return(x);
1014         }
1015
1016 /* self sign */
1017 static int sign(X509 *x, EVP_PKEY *pkey, int days, const EVP_MD *digest)
1018         {
1019
1020         EVP_PKEY *pktmp;
1021
1022         pktmp = X509_get_pubkey(x);
1023         EVP_PKEY_copy_parameters(pktmp,pkey);
1024         EVP_PKEY_save_parameters(pktmp,1);
1025         EVP_PKEY_free(pktmp);
1026
1027         if (!X509_set_issuer_name(x,X509_get_subject_name(x))) goto err;
1028         if (X509_gmtime_adj(X509_get_notBefore(x),0) == NULL) goto err;
1029
1030         /* Lets just make it 12:00am GMT, Jan 1 1970 */
1031         /* memcpy(x->cert_info->validity->notBefore,"700101120000Z",13); */
1032         /* 28 days to be certified */
1033
1034         if (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)
1035                 goto err;
1036
1037         if (!X509_set_pubkey(x,pkey)) goto err;
1038         if (!X509_sign(x,pkey,digest)) goto err;
1039         return(1);
1040 err:
1041         ERR_print_errors(bio_err);
1042         return(0);
1043         }