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 "bio.h"
  67 #include "asn1.h"
  68 #include "err.h"
  69 #include "bn.h"
  70 #include "evp.h"
  71 #include "x509.h"
  72 #include "objects.h"
  73 #include "pem.h"
  74
  75 #undef PROG
  76 #define PROG x509_main
  77
  78 #undef POSTFIX
  79 #define POSTFIX ".srl"
  80 #define DEF_DAYS        30
  81
  82 #define CERT_HDR        "certificate"
  83
  84 static char *x509_usage[]={
  85 "usage: x509 args\n",
  86 " -inform arg     - input format - default PEM (one of DER, NET or PEM)\n",
  87 " -outform arg    - output format - default PEM (one of DER, NET or PEM\n",
  88 " -keyform arg    - private key format - default PEM\n",
  89 " -CAform arg     - CA format - default PEM\n",
  90 " -CAkeyform arg  - CA key format - default PEM\n",
  91 " -in arg         - input file - default stdin\n",
  92 " -out arg        - output file - default stdout\n",
  93 " -serial         - print serial number value\n",
  94 " -hash           - print hash value\n",
  95 " -subject        - print subject DN\n",
  96 " -issuer         - print issuer DN\n",
  97 " -startdate      - notBefore field\n",
  98 " -enddate        - notAfter field\n",
  99 " -dates          - both Before and After dates\n",
 100 " -modulus        - print the RSA key modulus\n",
 101 " -fingerprint    - print the certificate fingerprint\n",
 102 " -noout          - no certificate output\n",
 103
 104 " -days arg       - How long till expiry of a signed certificate - def 30 days\n",
 105 " -signkey arg    - self sign cert with arg\n",
 106 " -x509toreq      - output a certification request object\n",
 107 " -req            - input is a certificate request, sign and output.\n",
 108 " -CA arg         - set the CA certificate, must be PEM format.\n",
 109 " -CAkey arg      - set the CA key, must be PEM format\n",
 110 "                   missing, it is asssumed to be in the CA file.\n",
 111 " -CAcreateserial - create serial number file if it does not exist\n",
 112 " -CAserial       - serial file\n",
 113 " -text           - print the certificate in text form\n",
 114 " -C              - print out C code forms\n",
 115 " -md2/-md5/-sha1/-mdc2 - digest to do an RSA sign with\n",
 116 NULL
 117 };
 118
 119 #ifndef NOPROTO
 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,EVP_MD *digest);
 124 static int x509_certify (X509_STORE *ctx,char *CAfile, EVP_MD *digest,X509 *x,
 125         X509 *xca, EVP_PKEY *pkey,char *serial, int create, int days);
 126 #else
 127 static int MS_CALLBACK callb();
 128 static EVP_PKEY *load_key();
 129 static X509 *load_cert();
 130 static int sign ();
 131 static int x509_certify ();
 132 #endif
 133
 134 static int reqfile=0;
 135
 136 int MAIN(argc, argv)
 137 int argc;
 138 char **argv;
 139         {
 140         int ret=1;
 141         X509_REQ *req=NULL;
 142         X509 *x=NULL,*xca=NULL;
 143         EVP_PKEY *Upkey=NULL,*CApkey=NULL;
 144         int i,num,badops=0;
 145         BIO *out=NULL;
 146         BIO *STDout=NULL;
 147         int informat,outformat,keyformat,CAformat,CAkeyformat;
 148         char *infile=NULL,*outfile=NULL,*keyfile=NULL,*CAfile=NULL;
 149         char *CAkeyfile=NULL,*CAserial=NULL;
 150         int text=0,serial=0,hash=0,subject=0,issuer=0,startdate=0,enddate=0;
 151         int noout=0,sign_flag=0,CA_flag=0,CA_createserial=0;
 152         int C=0;
 153         int x509req=0,days=DEF_DAYS,modulus=0;
 154         char **pp;
 155         X509_STORE *ctx=NULL;
 156         X509_REQ *rq=NULL;
 157         int fingerprint=0;
 158         char buf[256];
 159         EVP_MD *md_alg,*digest=EVP_md5();
 160
 161         reqfile=0;
 162
 163         apps_startup();
 164
 165         if (bio_err == NULL)
 166                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 167         STDout=BIO_new_fp(stdout,BIO_NOCLOSE);
 168
 169         informat=FORMAT_PEM;
 170         outformat=FORMAT_PEM;
 171         keyformat=FORMAT_PEM;
 172         CAformat=FORMAT_PEM;
 173         CAkeyformat=FORMAT_PEM;
 174
 175         ctx=X509_STORE_new();
 176         if (ctx == NULL) goto end;
 177         X509_STORE_set_verify_cb_func(ctx,callb);
 178
 179         argc--;
 180         argv++;
 181         num=0;
 182         while (argc >= 1)
 183                 {
 184                 if      (strcmp(*argv,"-inform") == 0)
 185                         {
 186                         if (--argc < 1) goto bad;
 187                         informat=str2fmt(*(++argv));
 188                         }
 189                 else if (strcmp(*argv,"-outform") == 0)
 190                         {
 191                         if (--argc < 1) goto bad;
 192                         outformat=str2fmt(*(++argv));
 193                         }
 194                 else if (strcmp(*argv,"-keyform") == 0)
 195                         {
 196                         if (--argc < 1) goto bad;
 197                         keyformat=str2fmt(*(++argv));
 198                         }
 199                 else if (strcmp(*argv,"-req") == 0)
 200                         reqfile=1;
 201                 else if (strcmp(*argv,"-CAform") == 0)
 202                         {
 203                         if (--argc < 1) goto bad;
 204                         CAformat=str2fmt(*(++argv));
 205                         }
 206                 else if (strcmp(*argv,"-CAkeyform") == 0)
 207                         {
 208                         if (--argc < 1) goto bad;
 209                         CAformat=str2fmt(*(++argv));
 210                         }
 211                 else if (strcmp(*argv,"-days") == 0)
 212                         {
 213                         if (--argc < 1) goto bad;
 214                         days=atoi(*(++argv));
 215                         if (days == 0)
 216                                 {
 217                                 BIO_printf(STDout,"bad number of days\n");
 218                                 goto bad;
 219                                 }
 220                         }
 221                 else if (strcmp(*argv,"-in") == 0)
 222                         {
 223                         if (--argc < 1) goto bad;
 224                         infile= *(++argv);
 225                         }
 226                 else if (strcmp(*argv,"-out") == 0)
 227                         {
 228                         if (--argc < 1) goto bad;
 229                         outfile= *(++argv);
 230                         }
 231                 else if (strcmp(*argv,"-signkey") == 0)
 232                         {
 233                         if (--argc < 1) goto bad;
 234                         keyfile= *(++argv);
 235                         sign_flag= ++num;
 236                         }
 237                 else if (strcmp(*argv,"-CA") == 0)
 238                         {
 239                         if (--argc < 1) goto bad;
 240                         CAfile= *(++argv);
 241                         CA_flag= ++num;
 242                         }
 243                 else if (strcmp(*argv,"-CAkey") == 0)
 244                         {
 245                         if (--argc < 1) goto bad;
 246                         CAkeyfile= *(++argv);
 247                         }
 248                 else if (strcmp(*argv,"-CAserial") == 0)
 249                         {
 250                         if (--argc < 1) goto bad;
 251                         CAserial= *(++argv);
 252                         }
 253                 else if (strcmp(*argv,"-C") == 0)
 254                         C= ++num;
 255                 else if (strcmp(*argv,"-serial") == 0)
 256                         serial= ++num;
 257                 else if (strcmp(*argv,"-modulus") == 0)
 258                         modulus= ++num;
 259                 else if (strcmp(*argv,"-x509toreq") == 0)
 260                         x509req= ++num;
 261                 else if (strcmp(*argv,"-text") == 0)
 262                         text= ++num;
 263                 else if (strcmp(*argv,"-hash") == 0)
 264                         hash= ++num;
 265                 else if (strcmp(*argv,"-subject") == 0)
 266                         subject= ++num;
 267                 else if (strcmp(*argv,"-issuer") == 0)
 268                         issuer= ++num;
 269                 else if (strcmp(*argv,"-fingerprint") == 0)
 270                         fingerprint= ++num;
 271                 else if (strcmp(*argv,"-dates") == 0)
 272                         {
 273                         startdate= ++num;
 274                         enddate= ++num;
 275                         }
 276                 else if (strcmp(*argv,"-startdate") == 0)
 277                         startdate= ++num;
 278                 else if (strcmp(*argv,"-enddate") == 0)
 279                         enddate= ++num;
 280                 else if (strcmp(*argv,"-noout") == 0)
 281                         noout= ++num;
 282                 else if (strcmp(*argv,"-CAcreateserial") == 0)
 283                         CA_createserial= ++num;
 284                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 285                         {
 286                         /* ok */
 287                         digest=md_alg;
 288                         }
 289                 else
 290                         {
 291                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 292                         badops=1;
 293                         break;
 294                         }
 295                 argc--;
 296                 argv++;
 297                 }
 298
 299         if (badops)
 300                 {
 301 bad:
 302                 for (pp=x509_usage; (*pp != NULL); pp++)
 303                         BIO_printf(bio_err,*pp);
 304                 goto end;
 305                 }
 306
 307         ERR_load_crypto_strings();
 308
 309         if (!X509_STORE_set_default_paths(ctx))
 310                 {
 311                 ERR_print_errors(bio_err);
 312                 goto end;
 313                 }
 314
 315         if ((CAkeyfile == NULL) && (CA_flag) && (CAformat == FORMAT_PEM))
 316                 { CAkeyfile=CAfile; }
 317         else if ((CA_flag) && (CAkeyfile == NULL))
 318                 {
 319                 BIO_printf(bio_err,"need to specify a CAkey if using the CA command\n");
 320                 goto end;
 321                 }
 322
 323         if (reqfile)
 324                 {
 325                 EVP_PKEY *pkey;
 326                 X509_CINF *ci;
 327                 BIO *in;
 328
 329                 if (!sign_flag && !CA_flag)
 330                         {
 331                         BIO_printf(bio_err,"We need a private key to sign with\n");
 332                         goto end;
 333                         }
 334                 in=BIO_new(BIO_s_file());
 335                 if (in == NULL)
 336                         {
 337                         ERR_print_errors(bio_err);
 338                         goto end;
 339                         }
 340
 341                 if (infile == NULL)
 342                         BIO_set_fp(in,stdin,BIO_NOCLOSE|BIO_FP_TEXT);
 343                 else
 344                         {
 345                         if (BIO_read_filename(in,infile) <= 0)
 346                                 {
 347                                 perror(infile);
 348                                 goto end;
 349                                 }
 350                         }
 351                 req=PEM_read_bio_X509_REQ(in,NULL,NULL);
 352                 BIO_free(in);
 353
 354                 if (req == NULL) { perror(infile); goto end; }
 355
 356                 if (    (req->req_info == NULL) ||
 357                         (req->req_info->pubkey == NULL) ||
 358                         (req->req_info->pubkey->public_key == NULL) ||
 359                         (req->req_info->pubkey->public_key->data == NULL))
 360                         {
 361                         BIO_printf(bio_err,"The certificate request appears to corrupted\n");
 362                         BIO_printf(bio_err,"It does not contain a public key\n");
 363                         goto end;
 364                         }
 365                 if ((pkey=X509_REQ_get_pubkey(req)) == NULL)
 366                         {
 367                         BIO_printf(bio_err,"error unpacking public key\n");
 368                         goto end;
 369                         }
 370                 i=X509_REQ_verify(req,pkey);
 371                 if (i < 0)
 372                         {
 373                         BIO_printf(bio_err,"Signature verification error\n");
 374                         ERR_print_errors(bio_err);
 375                         goto end;
 376                         }
 377                 if (i == 0)
 378                         {
 379                         BIO_printf(bio_err,"Signature did not match the certificate request\n");
 380                         goto end;
 381                         }
 382                 else
 383                         BIO_printf(bio_err,"Signature ok\n");
 384
 385                 X509_NAME_oneline(req->req_info->subject,buf,256);
 386                 BIO_printf(bio_err,"subject=%s\n",buf);
 387
 388                 if ((x=X509_new()) == NULL) goto end;
 389                 ci=x->cert_info;
 390
 391                 if (!ASN1_INTEGER_set(X509_get_serialNumber(x),0)) goto end;
 392                 if (!X509_set_issuer_name(x,req->req_info->subject)) goto end;
 393                 if (!X509_set_subject_name(x,req->req_info->subject)) goto end;
 394
 395                 X509_gmtime_adj(X509_get_notBefore(x),0);
 396                 X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days);
 397
 398 #if 0
 399                 X509_PUBKEY_free(ci->key);
 400                 ci->key=req->req_info->pubkey;
 401                 req->req_info->pubkey=NULL;
 402 #else
 403                 X509_set_pubkey(x,X509_REQ_get_pubkey(req));
 404 #endif
 405                 }
 406         else
 407                 x=load_cert(infile,informat);
 408
 409         if (x == NULL) goto end;
 410         if (CA_flag)
 411                 {
 412                 xca=load_cert(CAfile,CAformat);
 413                 if (xca == NULL) goto end;
 414                 }
 415
 416         if (!noout || text)
 417                 {
 418                 OBJ_create("2.99999.3",
 419                         "SET.ex3","SET x509v3 extension 3");
 420
 421                 out=BIO_new(BIO_s_file());
 422                 if (out == NULL)
 423                         {
 424                         ERR_print_errors(bio_err);
 425                         goto end;
 426                         }
 427                 if (outfile == NULL)
 428                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
 429                 else
 430                         {
 431                         if (BIO_write_filename(out,outfile) <= 0)
 432                                 {
 433                                 perror(outfile);
 434                                 goto end;
 435                                 }
 436                         }
 437                 }
 438
 439         if (num)
 440                 {
 441                 for (i=1; i<=num; i++)
 442                         {
 443                         if (issuer == i)
 444                                 {
 445                                 X509_NAME_oneline(X509_get_issuer_name(x),
 446                                         buf,256);
 447                                 BIO_printf(STDout,"issuer= %s\n",buf);
 448                                 }
 449                         else if (subject == i)
 450                                 {
 451                                 X509_NAME_oneline(X509_get_subject_name(x),
 452                                         buf,256);
 453                                 BIO_printf(STDout,"subject=%s\n",buf);
 454                                 }
 455                         else if (serial == i)
 456                                 {
 457                                 BIO_printf(STDout,"serial=");
 458                                 i2a_ASN1_INTEGER(STDout,x->cert_info->serialNumber);
 459                                 BIO_printf(STDout,"\n");
 460                                 }
 461                         else if (hash == i)
 462                                 {
 463                                 BIO_printf(STDout,"%08lx\n",X509_subject_name_hash(x));
 464                                 }
 465                         else
 466 #ifndef NO_RSA
 467                                 if (modulus == i)
 468                                 {
 469                                 EVP_PKEY *pkey;
 470
 471                                 pkey=X509_get_pubkey(x);
 472                                 if (pkey == NULL)
 473                                         {
 474                                         BIO_printf(bio_err,"Modulus=unavailable\n");
 475                                         ERR_print_errors(bio_err);
 476                                         goto end;
 477                                         }
 478                                 BIO_printf(STDout,"Modulus=");
 479                                 if (pkey->type == EVP_PKEY_RSA)
 480                                         BN_print(STDout,pkey->pkey.rsa->n);
 481                                 else
 482                                         BIO_printf(STDout,"Wrong Algorithm type");
 483                                 BIO_printf(STDout,"\n");
 484                                 }
 485                         else
 486 #endif
 487                                 if (C == i)
 488                                 {
 489                                 unsigned char *d;
 490                                 char *m;
 491                                 int y,z;
 492
 493                                 X509_NAME_oneline(X509_get_subject_name(x),
 494                                         buf,256);
 495                                 BIO_printf(STDout,"/* subject:%s */\n",buf);
 496                                 m=X509_NAME_oneline(
 497                                         X509_get_issuer_name(x),buf,256);
 498                                 BIO_printf(STDout,"/* issuer :%s */\n",buf);
 499
 500                                 z=i2d_X509(x,NULL);
 501                                 m=Malloc(z);
 502
 503                                 d=(unsigned char *)m;
 504                                 z=i2d_X509_NAME(X509_get_subject_name(x),&d);
 505                                 BIO_printf(STDout,"unsigned char XXX_subject_name[%d]={\n",z);
 506                                 d=(unsigned char *)m;
 507                                 for (y=0; y<z; y++)
 508                                         {
 509                                         BIO_printf(STDout,"0x%02X,",d[y]);
 510                                         if ((y & 0x0f) == 0x0f) BIO_printf(STDout,"\n");
 511                                         }
 512                                 if (y%16 != 0) BIO_printf(STDout,"\n");
 513                                 BIO_printf(STDout,"};\n");
 514
 515                                 z=i2d_X509_PUBKEY(X509_get_X509_PUBKEY(x),&d);
 516                                 BIO_printf(STDout,"unsigned char XXX_public_key[%d]={\n",z);
 517                                 d=(unsigned char *)m;
 518                                 for (y=0; y<z; y++)
 519                                         {
 520                                         BIO_printf(STDout,"0x%02X,",d[y]);
 521                                         if ((y & 0x0f) == 0x0f)
 522                                                 BIO_printf(STDout,"\n");
 523                                         }
 524                                 if (y%16 != 0) BIO_printf(STDout,"\n");
 525                                 BIO_printf(STDout,"};\n");
 526
 527                                 z=i2d_X509(x,&d);
 528                                 BIO_printf(STDout,"unsigned char XXX_certificate[%d]={\n",z);
 529                                 d=(unsigned char *)m;
 530                                 for (y=0; y<z; y++)
 531                                         {
 532                                         BIO_printf(STDout,"0x%02X,",d[y]);
 533                                         if ((y & 0x0f) == 0x0f)
 534                                                 BIO_printf(STDout,"\n");
 535                                         }
 536                                 if (y%16 != 0) BIO_printf(STDout,"\n");
 537                                 BIO_printf(STDout,"};\n");
 538
 539                                 Free(m);
 540                                 }
 541                         else if (text == i)
 542                                 {
 543                                 X509_print(out,x);
 544                                 }
 545                         else if (startdate == i)
 546                                 {
 547                                 BIO_puts(STDout,"notBefore=");
 548                                 ASN1_UTCTIME_print(STDout,X509_get_notBefore(x));
 549                                 BIO_puts(STDout,"\n");
 550                                 }
 551                         else if (enddate == i)
 552                                 {
 553                                 BIO_puts(STDout,"notAfter=");
 554                                 ASN1_UTCTIME_print(STDout,X509_get_notAfter(x));
 555                                 BIO_puts(STDout,"\n");
 556                                 }
 557                         else if (fingerprint == i)
 558                                 {
 559                                 int j;
 560                                 unsigned int n;
 561                                 unsigned char md[EVP_MAX_MD_SIZE];
 562
 563                                 if (!X509_digest(x,EVP_md5(),md,&n))
 564                                         {
 565                                         BIO_printf(bio_err,"out of memory\n");
 566                                         goto end;
 567                                         }
 568                                 BIO_printf(STDout,"MD5 Fingerprint=");
 569                                 for (j=0; j<(int)n; j++)
 570                                         {
 571                                         BIO_printf(STDout,"%02X%c",md[j],
 572                                                 (j+1 == (int)n)
 573                                                 ?'\n':':');
 574                                         }
 575                                 }
 576
 577                         /* should be in the library */
 578                         else if ((sign_flag == i) && (x509req == 0))
 579                                 {
 580                                 BIO_printf(bio_err,"Getting Private key\n");
 581                                 if (Upkey == NULL)
 582                                         {
 583                                         Upkey=load_key(keyfile,keyformat);
 584                                         if (Upkey == NULL) goto end;
 585                                         }
 586 #ifndef NO_DSA
 587                                 if (Upkey->type == EVP_PKEY_DSA)
 588                                         digest=EVP_dss1();
 589 #endif
 590
 591                                 if (!sign(x,Upkey,days,digest)) goto end;
 592                                 }
 593                         else if (CA_flag == i)
 594                                 {
 595                                 BIO_printf(bio_err,"Getting CA Private Key\n");
 596                                 if (CAkeyfile != NULL)
 597                                         {
 598                                         CApkey=load_key(CAkeyfile,CAkeyformat);
 599                                         if (CApkey == NULL) goto end;
 600                                         }
 601 #ifndef NO_DSA
 602                                 if (CApkey->type == EVP_PKEY_DSA)
 603                                         digest=EVP_dss1();
 604 #endif
 605
 606                                 if (!x509_certify(ctx,CAfile,digest,x,xca,
 607                                         CApkey,
 608                                         CAserial,CA_createserial,days))
 609                                         goto end;
 610                                 }
 611                         else if (x509req == i)
 612                                 {
 613                                 EVP_PKEY *pk;
 614
 615                                 BIO_printf(bio_err,"Getting request Private Key\n");
 616                                 if (keyfile == NULL)
 617                                         {
 618                                         BIO_printf(bio_err,"no request key file specified\n");
 619                                         goto end;
 620                                         }
 621                                 else
 622                                         {
 623                                         pk=load_key(keyfile,FORMAT_PEM);
 624                                         if (pk == NULL) goto end;
 625                                         }
 626
 627                                 BIO_printf(bio_err,"Generating certificate request\n");
 628
 629                                 rq=X509_to_X509_REQ(x,pk,EVP_md5());
 630                                 EVP_PKEY_free(pk);
 631                                 if (rq == NULL)
 632                                         {
 633                                         ERR_print_errors(bio_err);
 634                                         goto end;
 635                                         }
 636                                 if (!noout)
 637                                         {
 638                                         X509_REQ_print(out,rq);
 639                                         PEM_write_bio_X509_REQ(out,rq);
 640                                         }
 641                                 noout=1;
 642                                 }
 643                         }
 644                 }
 645
 646         if (noout)
 647                 {
 648                 ret=0;
 649                 goto end;
 650                 }
 651
 652         if      (outformat == FORMAT_ASN1)
 653                 i=i2d_X509_bio(out,x);
 654         else if (outformat == FORMAT_PEM)
 655                 i=PEM_write_bio_X509(out,x);
 656         else if (outformat == FORMAT_NETSCAPE)
 657                 {
 658                 ASN1_HEADER ah;
 659                 ASN1_OCTET_STRING os;
 660
 661                 os.data=(unsigned char *)CERT_HDR;
 662                 os.length=strlen(CERT_HDR);
 663                 ah.header= &os;
 664                 ah.data=(char *)x;
 665                 ah.meth=X509_asn1_meth();
 666
 667                 /* no macro for this one yet */
 668                 i=ASN1_i2d_bio(i2d_ASN1_HEADER,out,(unsigned char *)&ah);
 669                 }
 670         else    {
 671                 BIO_printf(bio_err,"bad output format specified for outfile\n");
 672                 goto end;
 673                 }
 674         if (!i) {
 675                 BIO_printf(bio_err,"unable to write certificate\n");
 676                 ERR_print_errors(bio_err);
 677                 goto end;
 678                 }
 679         ret=0;
 680 end:
 681         OBJ_cleanup();
 682         if (out != NULL) BIO_free(out);
 683         if (STDout != NULL) BIO_free(STDout);
 684         if (ctx != NULL) X509_STORE_free(ctx);
 685         if (req != NULL) X509_REQ_free(req);
 686         if (x != NULL) X509_free(x);
 687         if (xca != NULL) X509_free(xca);
 688         if (Upkey != NULL) EVP_PKEY_free(Upkey);
 689         if (CApkey != NULL) EVP_PKEY_free(CApkey);
 690         if (rq != NULL) X509_REQ_free(rq);
 691         EXIT(ret);
 692         }
 693
 694 static int x509_certify(ctx,CAfile,digest,x,xca,pkey,serialfile,create,days)
 695 X509_STORE *ctx;
 696 char *CAfile;
 697 EVP_MD *digest;
 698 X509 *x;
 699 X509 *xca;
 700 EVP_PKEY *pkey;
 701 char *serialfile;
 702 int create;
 703 int days;
 704         {
 705         int ret=0;
 706         BIO *io=NULL;
 707         MS_STATIC char buf2[1024];
 708         char *buf=NULL,*p;
 709         BIGNUM *serial=NULL;
 710         ASN1_INTEGER *bs=NULL,bs2;
 711         X509_STORE_CTX xsc;
 712         EVP_PKEY *upkey;
 713
 714         EVP_PKEY_copy_parameters(X509_get_pubkey(xca),pkey);
 715
 716         X509_STORE_CTX_init(&xsc,ctx,x,NULL);
 717         buf=(char *)Malloc(EVP_PKEY_size(pkey)*2+
 718                 ((serialfile == NULL)
 719                         ?(strlen(CAfile)+strlen(POSTFIX)+1)
 720                         :(strlen(serialfile)))+1);
 721         if (buf == NULL) { BIO_printf(bio_err,"out of mem\n"); goto end; }
 722         if (serialfile == NULL)
 723                 {
 724                 strcpy(buf,CAfile);
 725                 for (p=buf; *p; p++)
 726                         if (*p == '.')
 727                                 {
 728                                 *p='\0';
 729                                 break;
 730                                 }
 731                 strcat(buf,POSTFIX);
 732                 }
 733         else
 734                 strcpy(buf,serialfile);
 735         serial=BN_new();
 736         bs=ASN1_INTEGER_new();
 737         if ((serial == NULL) || (bs == NULL))
 738                 {
 739                 ERR_print_errors(bio_err);
 740                 goto end;
 741                 }
 742
 743         io=BIO_new(BIO_s_file());
 744         if (io == NULL)
 745                 {
 746                 ERR_print_errors(bio_err);
 747                 goto end;
 748                 }
 749
 750         if (BIO_read_filename(io,buf) <= 0)
 751                 {
 752                 if (!create)
 753                         {
 754                         perror(buf);
 755                         goto end;
 756                         }
 757                 else
 758                         {
 759                         ASN1_INTEGER_set(bs,0);
 760                         BN_zero(serial);
 761                         }
 762                 }
 763         else
 764                 {
 765                 if (!a2i_ASN1_INTEGER(io,bs,buf2,1024))
 766                         {
 767                         BIO_printf(bio_err,"unable to load serial number from %s\n",buf);
 768                         ERR_print_errors(bio_err);
 769                         goto end;
 770                         }
 771                 else
 772                         {
 773                         serial=BN_bin2bn(bs->data,bs->length,serial);
 774                         if (serial == NULL)
 775                                 {
 776                                 BIO_printf(bio_err,"error converting bin 2 bn");
 777                                 goto end;
 778                                 }
 779                         }
 780                 }
 781
 782         if (!BN_add_word(serial,1))
 783                 { BIO_printf(bio_err,"add_word failure\n"); goto end; }
 784         bs2.data=(unsigned char *)buf2;
 785         bs2.length=BN_bn2bin(serial,bs2.data);
 786
 787         if (BIO_write_filename(io,buf) <= 0)
 788                 {
 789                 BIO_printf(bio_err,"error attempting to write serial number file\n");
 790                 perror(buf);
 791                 goto end;
 792                 }
 793         i2a_ASN1_INTEGER(io,&bs2);
 794         BIO_puts(io,"\n");
 795         BIO_free(io);
 796         io=NULL;
 797
 798         if (!X509_STORE_add_cert(ctx,x)) goto end;
 799
 800         /* NOTE: this certificate can/should be self signed, unless it was
 801          * a certificate request in which case it is not. */
 802         X509_STORE_CTX_set_cert(&xsc,x);
 803         if (!reqfile && !X509_verify_cert(&xsc))
 804                 goto end;
 805
 806         if (!X509_check_private_key(xca,pkey))
 807                 {
 808                 BIO_printf(bio_err,"CA certificate and CA private key do not match\n");
 809                 goto end;
 810                 }
 811
 812         if (!X509_set_issuer_name(x,X509_get_subject_name(xca))) goto end;
 813         if (!X509_set_serialNumber(x,bs)) goto end;
 814
 815         if (X509_gmtime_adj(X509_get_notBefore(x),0L) == NULL)
 816                 goto end;
 817
 818         /* hardwired expired */
 819         if (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)
 820                 goto end;
 821
 822         /* don't save DSA parameters in child if parent has them
 823          * and the parents and the childs are the same. */
 824         upkey=X509_get_pubkey(x);
 825         if (!EVP_PKEY_missing_parameters(pkey) &&
 826                 (EVP_PKEY_cmp_parameters(pkey,upkey) == 0))
 827                 {
 828                 EVP_PKEY_save_parameters(upkey,0);
 829                 /* Force a re-write */
 830                 X509_set_pubkey(x,upkey);
 831                 }
 832
 833         if (!X509_sign(x,pkey,digest)) goto end;
 834         ret=1;
 835 end:
 836         X509_STORE_CTX_cleanup(&xsc);
 837         if (!ret)
 838                 ERR_print_errors(bio_err);
 839         if (buf != NULL) Free(buf);
 840         if (bs != NULL) ASN1_INTEGER_free(bs);
 841         if (io != NULL) BIO_free(io);
 842         if (serial != NULL) BN_free(serial);
 843         return(ret);
 844         }
 845
 846 static int MS_CALLBACK callb(ok, ctx)
 847 int ok;
 848 X509_STORE_CTX *ctx;
 849         {
 850         char buf[256];
 851         int err;
 852         X509 *err_cert;
 853
 854         /* it is ok to use a self signed certificate
 855          * This case will catch both the initial ok == 0 and the
 856          * final ok == 1 calls to this function */
 857         err=X509_STORE_CTX_get_error(ctx);
 858         if (err == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
 859                 return(1);
 860
 861         /* BAD we should have gotten an error.  Normally if everything
 862          * worked X509_STORE_CTX_get_error(ctx) will still be set to
 863          * DEPTH_ZERO_SELF_.... */
 864         if (ok)
 865                 {
 866                 BIO_printf(bio_err,"error with certificate to be certified - should be self signed\n");
 867                 return(0);
 868                 }
 869         else
 870                 {
 871                 err_cert=X509_STORE_CTX_get_current_cert(ctx);
 872                 X509_NAME_oneline(X509_get_subject_name(err_cert),buf,256);
 873                 BIO_printf(bio_err,"%s\n",buf);
 874                 BIO_printf(bio_err,"error with certificate - error %d at depth %d\n%s\n",
 875                         err,X509_STORE_CTX_get_error_depth(ctx),
 876                         X509_verify_cert_error_string(err));
 877                 return(1);
 878                 }
 879         }
 880
 881 static EVP_PKEY *load_key(file, format)
 882 char *file;
 883 int format;
 884         {
 885         BIO *key=NULL;
 886         EVP_PKEY *pkey=NULL;
 887
 888         if (file == NULL)
 889                 {
 890                 BIO_printf(bio_err,"no keyfile specified\n");
 891                 goto end;
 892                 }
 893         key=BIO_new(BIO_s_file());
 894         if (key == NULL)
 895                 {
 896                 ERR_print_errors(bio_err);
 897                 goto end;
 898                 }
 899         if (BIO_read_filename(key,file) <= 0)
 900                 {
 901                 perror(file);
 902                 goto end;
 903                 }
 904 #ifndef NO_RSA
 905         if      (format == FORMAT_ASN1)
 906                 {
 907                 RSA *rsa;
 908
 909                 rsa=d2i_RSAPrivateKey_bio(key,NULL);
 910                 if (rsa != NULL)
 911                         {
 912                         if ((pkey=EVP_PKEY_new()) != NULL)
 913                                 EVP_PKEY_assign_RSA(pkey,rsa);
 914                         else
 915                                 RSA_free(rsa);
 916                         }
 917                 }
 918         else
 919 #endif
 920                 if (format == FORMAT_PEM)
 921                 {
 922                 pkey=PEM_read_bio_PrivateKey(key,NULL,NULL);
 923                 }
 924         else
 925                 {
 926                 BIO_printf(bio_err,"bad input format specified for key\n");
 927                 goto end;
 928                 }
 929 end:
 930         if (key != NULL) BIO_free(key);
 931         if (pkey == NULL)
 932                 BIO_printf(bio_err,"unable to load Private Key\n");
 933         return(pkey);
 934         }
 935
 936 static X509 *load_cert(file, format)
 937 char *file;
 938 int format;
 939         {
 940         ASN1_HEADER *ah=NULL;
 941         BUF_MEM *buf=NULL;
 942         X509 *x=NULL;
 943         BIO *cert;
 944
 945         if ((cert=BIO_new(BIO_s_file())) == NULL)
 946                 {
 947                 ERR_print_errors(bio_err);
 948                 goto end;
 949                 }
 950
 951         if (file == NULL)
 952                 BIO_set_fp(cert,stdin,BIO_NOCLOSE);
 953         else
 954                 {
 955                 if (BIO_read_filename(cert,file) <= 0)
 956                         {
 957                         perror(file);
 958                         goto end;
 959                         }
 960                 }
 961         if      (format == FORMAT_ASN1)
 962                 x=d2i_X509_bio(cert,NULL);
 963         else if (format == FORMAT_NETSCAPE)
 964                 {
 965                 unsigned char *p,*op;
 966                 int size=0,i;
 967
 968                 /* We sort of have to do it this way because it is sort of nice
 969                  * to read the header first and check it, then
 970                  * try to read the certificate */
 971                 buf=BUF_MEM_new();
 972                 for (;;)
 973                         {
 974                         if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10)))
 975                                 goto end;
 976                         i=BIO_read(cert,&(buf->data[size]),1024*10);
 977                         size+=i;
 978                         if (i == 0) break;
 979                         if (i < 0)
 980                                 {
 981                                 perror("reading certificate");
 982                                 goto end;
 983                                 }
 984                         }
 985                 p=(unsigned char *)buf->data;
 986                 op=p;
 987
 988                 /* First load the header */
 989                 if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)
 990                         goto end;
 991                 if ((ah->header == NULL) || (ah->header->data == NULL) ||
 992                         (strncmp(CERT_HDR,(char *)ah->header->data,
 993                         ah->header->length) != 0))
 994                         {
 995                         BIO_printf(bio_err,"Error reading header on certificate\n");
 996                         goto end;
 997                         }
 998                 /* header is ok, so now read the object */
 999                 p=op;
1000                 ah->meth=X509_asn1_meth();
1001                 if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)
1002                         goto end;
1003                 x=(X509 *)ah->data;
1004                 ah->data=NULL;
1005                 }
1006         else if (format == FORMAT_PEM)
1007                 x=PEM_read_bio_X509(cert,NULL,NULL);
1008         else    {
1009                 BIO_printf(bio_err,"bad input format specified for input cert\n");
1010                 goto end;
1011                 }
1012 end:
1013         if (x == NULL)
1014                 {
1015                 BIO_printf(bio_err,"unable to load certificate\n");
1016                 ERR_print_errors(bio_err);
1017                 }
1018         if (ah != NULL) ASN1_HEADER_free(ah);
1019         if (cert != NULL) BIO_free(cert);
1020         if (buf != NULL) BUF_MEM_free(buf);
1021         return(x);
1022         }
1023
1024 /* self sign */
1025 static int sign(x, pkey, days, digest)
1026 X509 *x;
1027 EVP_PKEY *pkey;
1028 int days;
1029 EVP_MD *digest;
1030         {
1031
1032         EVP_PKEY_copy_parameters(X509_get_pubkey(x),pkey);
1033         EVP_PKEY_save_parameters(X509_get_pubkey(x),1);
1034
1035         if (!X509_set_issuer_name(x,X509_get_subject_name(x))) goto err;
1036         if (X509_gmtime_adj(X509_get_notBefore(x),0) == NULL) goto err;
1037
1038         /* Lets just make it 12:00am GMT, Jan 1 1970 */
1039         /* memcpy(x->cert_info->validity->notBefore,"700101120000Z",13); */
1040         /* 28 days to be certified */
1041
1042         if (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)
1043                 goto err;
1044
1045         if (!X509_set_pubkey(x,pkey)) goto err;
1046         if (!X509_sign(x,pkey,digest)) goto err;
1047         return(1);
1048 err:
1049         ERR_print_errors(bio_err);
1050         return(0);
1051         }