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 "x509v3.h"
  73 #include "objects.h"
  74 #include "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 #ifndef NOPROTO
 121 static int MS_CALLBACK callb(int ok, X509_STORE_CTX *ctx);
 122 static EVP_PKEY *load_key(char *file, int format);
 123 static X509 *load_cert(char *file, int format);
 124 static int sign (X509 *x, EVP_PKEY *pkey,int days,EVP_MD *digest);
 125 static int x509_certify (X509_STORE *ctx,char *CAfile, EVP_MD *digest,X509 *x,
 126         X509 *xca, EVP_PKEY *pkey,char *serial, int create, int days);
 127 #else
 128 static int MS_CALLBACK callb();
 129 static EVP_PKEY *load_key();
 130 static X509 *load_cert();
 131 static int sign ();
 132 static int x509_certify ();
 133 #endif
 134
 135 static int reqfile=0;
 136
 137 int MAIN(argc, argv)
 138 int argc;
 139 char **argv;
 140         {
 141         int ret=1;
 142         X509_REQ *req=NULL;
 143         X509 *x=NULL,*xca=NULL;
 144         EVP_PKEY *Upkey=NULL,*CApkey=NULL;
 145         int i,num,badops=0;
 146         BIO *out=NULL;
 147         BIO *STDout=NULL;
 148         int informat,outformat,keyformat,CAformat,CAkeyformat;
 149         char *infile=NULL,*outfile=NULL,*keyfile=NULL,*CAfile=NULL;
 150         char *CAkeyfile=NULL,*CAserial=NULL;
 151         int text=0,serial=0,hash=0,subject=0,issuer=0,startdate=0,enddate=0;
 152         int noout=0,sign_flag=0,CA_flag=0,CA_createserial=0;
 153         int C=0;
 154         int x509req=0,days=DEF_DAYS,modulus=0;
 155         char **pp;
 156         X509_STORE *ctx=NULL;
 157         X509_REQ *rq=NULL;
 158         int fingerprint=0;
 159         char buf[256];
 160         EVP_MD *md_alg,*digest=EVP_md5();
 161
 162         reqfile=0;
 163
 164         apps_startup();
 165
 166         if (bio_err == NULL)
 167                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 168         STDout=BIO_new_fp(stdout,BIO_NOCLOSE);
 169
 170         informat=FORMAT_PEM;
 171         outformat=FORMAT_PEM;
 172         keyformat=FORMAT_PEM;
 173         CAformat=FORMAT_PEM;
 174         CAkeyformat=FORMAT_PEM;
 175
 176         ctx=X509_STORE_new();
 177         if (ctx == NULL) goto end;
 178         X509_STORE_set_verify_cb_func(ctx,callb);
 179
 180         argc--;
 181         argv++;
 182         num=0;
 183         while (argc >= 1)
 184                 {
 185                 if      (strcmp(*argv,"-inform") == 0)
 186                         {
 187                         if (--argc < 1) goto bad;
 188                         informat=str2fmt(*(++argv));
 189                         }
 190                 else if (strcmp(*argv,"-outform") == 0)
 191                         {
 192                         if (--argc < 1) goto bad;
 193                         outformat=str2fmt(*(++argv));
 194                         }
 195                 else if (strcmp(*argv,"-keyform") == 0)
 196                         {
 197                         if (--argc < 1) goto bad;
 198                         keyformat=str2fmt(*(++argv));
 199                         }
 200                 else if (strcmp(*argv,"-req") == 0)
 201                         reqfile=1;
 202                 else if (strcmp(*argv,"-CAform") == 0)
 203                         {
 204                         if (--argc < 1) goto bad;
 205                         CAformat=str2fmt(*(++argv));
 206                         }
 207                 else if (strcmp(*argv,"-CAkeyform") == 0)
 208                         {
 209                         if (--argc < 1) goto bad;
 210                         CAformat=str2fmt(*(++argv));
 211                         }
 212                 else if (strcmp(*argv,"-days") == 0)
 213                         {
 214                         if (--argc < 1) goto bad;
 215                         days=atoi(*(++argv));
 216                         if (days == 0)
 217                                 {
 218                                 BIO_printf(STDout,"bad number of days\n");
 219                                 goto bad;
 220                                 }
 221                         }
 222                 else if (strcmp(*argv,"-in") == 0)
 223                         {
 224                         if (--argc < 1) goto bad;
 225                         infile= *(++argv);
 226                         }
 227                 else if (strcmp(*argv,"-out") == 0)
 228                         {
 229                         if (--argc < 1) goto bad;
 230                         outfile= *(++argv);
 231                         }
 232                 else if (strcmp(*argv,"-signkey") == 0)
 233                         {
 234                         if (--argc < 1) goto bad;
 235                         keyfile= *(++argv);
 236                         sign_flag= ++num;
 237                         }
 238                 else if (strcmp(*argv,"-CA") == 0)
 239                         {
 240                         if (--argc < 1) goto bad;
 241                         CAfile= *(++argv);
 242                         CA_flag= ++num;
 243                         }
 244                 else if (strcmp(*argv,"-CAkey") == 0)
 245                         {
 246                         if (--argc < 1) goto bad;
 247                         CAkeyfile= *(++argv);
 248                         }
 249                 else if (strcmp(*argv,"-CAserial") == 0)
 250                         {
 251                         if (--argc < 1) goto bad;
 252                         CAserial= *(++argv);
 253                         }
 254                 else if (strcmp(*argv,"-C") == 0)
 255                         C= ++num;
 256                 else if (strcmp(*argv,"-serial") == 0)
 257                         serial= ++num;
 258                 else if (strcmp(*argv,"-modulus") == 0)
 259                         modulus= ++num;
 260                 else if (strcmp(*argv,"-x509toreq") == 0)
 261                         x509req= ++num;
 262                 else if (strcmp(*argv,"-text") == 0)
 263                         text= ++num;
 264                 else if (strcmp(*argv,"-hash") == 0)
 265                         hash= ++num;
 266                 else if (strcmp(*argv,"-subject") == 0)
 267                         subject= ++num;
 268                 else if (strcmp(*argv,"-issuer") == 0)
 269                         issuer= ++num;
 270                 else if (strcmp(*argv,"-fingerprint") == 0)
 271                         fingerprint= ++num;
 272                 else if (strcmp(*argv,"-dates") == 0)
 273                         {
 274                         startdate= ++num;
 275                         enddate= ++num;
 276                         }
 277                 else if (strcmp(*argv,"-startdate") == 0)
 278                         startdate= ++num;
 279                 else if (strcmp(*argv,"-enddate") == 0)
 280                         enddate= ++num;
 281                 else if (strcmp(*argv,"-noout") == 0)
 282                         noout= ++num;
 283                 else if (strcmp(*argv,"-CAcreateserial") == 0)
 284                         CA_createserial= ++num;
 285                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 286                         {
 287                         /* ok */
 288                         digest=md_alg;
 289                         }
 290                 else
 291                         {
 292                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 293                         badops=1;
 294                         break;
 295                         }
 296                 argc--;
 297                 argv++;
 298                 }
 299
 300         if (badops)
 301                 {
 302 bad:
 303                 for (pp=x509_usage; (*pp != NULL); pp++)
 304                         BIO_printf(bio_err,*pp);
 305                 goto end;
 306                 }
 307
 308         ERR_load_crypto_strings();
 309         X509V3_add_standard_extensions();
 310
 311         if (!X509_STORE_set_default_paths(ctx))
 312                 {
 313                 ERR_print_errors(bio_err);
 314                 goto end;
 315                 }
 316
 317         if ((CAkeyfile == NULL) && (CA_flag) && (CAformat == FORMAT_PEM))
 318                 { CAkeyfile=CAfile; }
 319         else if ((CA_flag) && (CAkeyfile == NULL))
 320                 {
 321                 BIO_printf(bio_err,"need to specify a CAkey if using the CA command\n");
 322                 goto end;
 323                 }
 324
 325         if (reqfile)
 326                 {
 327                 EVP_PKEY *pkey;
 328                 X509_CINF *ci;
 329                 BIO *in;
 330
 331                 if (!sign_flag && !CA_flag)
 332                         {
 333                         BIO_printf(bio_err,"We need a private key to sign with\n");
 334                         goto end;
 335                         }
 336                 in=BIO_new(BIO_s_file());
 337                 if (in == NULL)
 338                         {
 339                         ERR_print_errors(bio_err);
 340                         goto end;
 341                         }
 342
 343                 if (infile == NULL)
 344                         BIO_set_fp(in,stdin,BIO_NOCLOSE|BIO_FP_TEXT);
 345                 else
 346                         {
 347                         if (BIO_read_filename(in,infile) <= 0)
 348                                 {
 349                                 perror(infile);
 350                                 goto end;
 351                                 }
 352                         }
 353                 req=PEM_read_bio_X509_REQ(in,NULL,NULL);
 354                 BIO_free(in);
 355
 356                 if (req == NULL) { perror(infile); goto end; }
 357
 358                 if (    (req->req_info == NULL) ||
 359                         (req->req_info->pubkey == NULL) ||
 360                         (req->req_info->pubkey->public_key == NULL) ||
 361                         (req->req_info->pubkey->public_key->data == NULL))
 362                         {
 363                         BIO_printf(bio_err,"The certificate request appears to corrupted\n");
 364                         BIO_printf(bio_err,"It does not contain a public key\n");
 365                         goto end;
 366                         }
 367                 if ((pkey=X509_REQ_get_pubkey(req)) == NULL)
 368                         {
 369                         BIO_printf(bio_err,"error unpacking public key\n");
 370                         goto end;
 371                         }
 372                 i=X509_REQ_verify(req,pkey);
 373                 EVP_PKEY_free(pkey);
 374                 if (i < 0)
 375                         {
 376                         BIO_printf(bio_err,"Signature verification error\n");
 377                         ERR_print_errors(bio_err);
 378                         goto end;
 379                         }
 380                 if (i == 0)
 381                         {
 382                         BIO_printf(bio_err,"Signature did not match the certificate request\n");
 383                         goto end;
 384                         }
 385                 else
 386                         BIO_printf(bio_err,"Signature ok\n");
 387
 388                 X509_NAME_oneline(req->req_info->subject,buf,256);
 389                 BIO_printf(bio_err,"subject=%s\n",buf);
 390
 391                 if ((x=X509_new()) == NULL) goto end;
 392                 ci=x->cert_info;
 393
 394                 if (!ASN1_INTEGER_set(X509_get_serialNumber(x),0)) goto end;
 395                 if (!X509_set_issuer_name(x,req->req_info->subject)) goto end;
 396                 if (!X509_set_subject_name(x,req->req_info->subject)) goto end;
 397
 398                 X509_gmtime_adj(X509_get_notBefore(x),0);
 399                 X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days);
 400
 401 #if 0
 402                 X509_PUBKEY_free(ci->key);
 403                 ci->key=req->req_info->pubkey;
 404                 req->req_info->pubkey=NULL;
 405 #else
 406                 pkey = X509_REQ_get_pubkey(req);
 407                 X509_set_pubkey(x,pkey);
 408                 EVP_PKEY_free(pkey);
 409 #endif
 410                 }
 411         else
 412                 x=load_cert(infile,informat);
 413
 414         if (x == NULL) goto end;
 415         if (CA_flag)
 416                 {
 417                 xca=load_cert(CAfile,CAformat);
 418                 if (xca == NULL) goto end;
 419                 }
 420
 421         if (!noout || text)
 422                 {
 423                 OBJ_create("2.99999.3",
 424                         "SET.ex3","SET x509v3 extension 3");
 425
 426                 out=BIO_new(BIO_s_file());
 427                 if (out == NULL)
 428                         {
 429                         ERR_print_errors(bio_err);
 430                         goto end;
 431                         }
 432                 if (outfile == NULL)
 433                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
 434                 else
 435                         {
 436                         if (BIO_write_filename(out,outfile) <= 0)
 437                                 {
 438                                 perror(outfile);
 439                                 goto end;
 440                                 }
 441                         }
 442                 }
 443
 444         if (num)
 445                 {
 446                 for (i=1; i<=num; i++)
 447                         {
 448                         if (issuer == i)
 449                                 {
 450                                 X509_NAME_oneline(X509_get_issuer_name(x),
 451                                         buf,256);
 452                                 BIO_printf(STDout,"issuer= %s\n",buf);
 453                                 }
 454                         else if (subject == i)
 455                                 {
 456                                 X509_NAME_oneline(X509_get_subject_name(x),
 457                                         buf,256);
 458                                 BIO_printf(STDout,"subject=%s\n",buf);
 459                                 }
 460                         else if (serial == i)
 461                                 {
 462                                 BIO_printf(STDout,"serial=");
 463                                 i2a_ASN1_INTEGER(STDout,x->cert_info->serialNumber);
 464                                 BIO_printf(STDout,"\n");
 465                                 }
 466                         else if (hash == i)
 467                                 {
 468                                 BIO_printf(STDout,"%08lx\n",X509_subject_name_hash(x));
 469                                 }
 470                         else
 471 #ifndef NO_RSA
 472                                 if (modulus == i)
 473                                 {
 474                                 EVP_PKEY *pkey;
 475
 476                                 pkey=X509_get_pubkey(x);
 477                                 if (pkey == NULL)
 478                                         {
 479                                         BIO_printf(bio_err,"Modulus=unavailable\n");
 480                                         ERR_print_errors(bio_err);
 481                                         goto end;
 482                                         }
 483                                 BIO_printf(STDout,"Modulus=");
 484                                 if (pkey->type == EVP_PKEY_RSA)
 485                                         BN_print(STDout,pkey->pkey.rsa->n);
 486                                 else
 487                                         BIO_printf(STDout,"Wrong Algorithm type");
 488                                 BIO_printf(STDout,"\n");
 489                                 EVP_PKEY_free(pkey);
 490                                 }
 491                         else
 492 #endif
 493                                 if (C == i)
 494                                 {
 495                                 unsigned char *d;
 496                                 char *m;
 497                                 int y,z;
 498
 499                                 X509_NAME_oneline(X509_get_subject_name(x),
 500                                         buf,256);
 501                                 BIO_printf(STDout,"/* subject:%s */\n",buf);
 502                                 m=X509_NAME_oneline(
 503                                         X509_get_issuer_name(x),buf,256);
 504                                 BIO_printf(STDout,"/* issuer :%s */\n",buf);
 505
 506                                 z=i2d_X509(x,NULL);
 507                                 m=Malloc(z);
 508
 509                                 d=(unsigned char *)m;
 510                                 z=i2d_X509_NAME(X509_get_subject_name(x),&d);
 511                                 BIO_printf(STDout,"unsigned char XXX_subject_name[%d]={\n",z);
 512                                 d=(unsigned char *)m;
 513                                 for (y=0; y<z; y++)
 514                                         {
 515                                         BIO_printf(STDout,"0x%02X,",d[y]);
 516                                         if ((y & 0x0f) == 0x0f) BIO_printf(STDout,"\n");
 517                                         }
 518                                 if (y%16 != 0) BIO_printf(STDout,"\n");
 519                                 BIO_printf(STDout,"};\n");
 520
 521                                 z=i2d_X509_PUBKEY(X509_get_X509_PUBKEY(x),&d);
 522                                 BIO_printf(STDout,"unsigned char XXX_public_key[%d]={\n",z);
 523                                 d=(unsigned char *)m;
 524                                 for (y=0; y<z; y++)
 525                                         {
 526                                         BIO_printf(STDout,"0x%02X,",d[y]);
 527                                         if ((y & 0x0f) == 0x0f)
 528                                                 BIO_printf(STDout,"\n");
 529                                         }
 530                                 if (y%16 != 0) BIO_printf(STDout,"\n");
 531                                 BIO_printf(STDout,"};\n");
 532
 533                                 z=i2d_X509(x,&d);
 534                                 BIO_printf(STDout,"unsigned char XXX_certificate[%d]={\n",z);
 535                                 d=(unsigned char *)m;
 536                                 for (y=0; y<z; y++)
 537                                         {
 538                                         BIO_printf(STDout,"0x%02X,",d[y]);
 539                                         if ((y & 0x0f) == 0x0f)
 540                                                 BIO_printf(STDout,"\n");
 541                                         }
 542                                 if (y%16 != 0) BIO_printf(STDout,"\n");
 543                                 BIO_printf(STDout,"};\n");
 544
 545                                 Free(m);
 546                                 }
 547                         else if (text == i)
 548                                 {
 549                                 X509_print(out,x);
 550                                 }
 551                         else if (startdate == i)
 552                                 {
 553                                 BIO_puts(STDout,"notBefore=");
 554                                 ASN1_TIME_print(STDout,X509_get_notBefore(x));
 555                                 BIO_puts(STDout,"\n");
 556                                 }
 557                         else if (enddate == i)
 558                                 {
 559                                 BIO_puts(STDout,"notAfter=");
 560                                 ASN1_TIME_print(STDout,X509_get_notAfter(x));
 561                                 BIO_puts(STDout,"\n");
 562                                 }
 563                         else if (fingerprint == i)
 564                                 {
 565                                 int j;
 566                                 unsigned int n;
 567                                 unsigned char md[EVP_MAX_MD_SIZE];
 568
 569                                 if (!X509_digest(x,EVP_md5(),md,&n))
 570                                         {
 571                                         BIO_printf(bio_err,"out of memory\n");
 572                                         goto end;
 573                                         }
 574                                 BIO_printf(STDout,"MD5 Fingerprint=");
 575                                 for (j=0; j<(int)n; j++)
 576                                         {
 577                                         BIO_printf(STDout,"%02X%c",md[j],
 578                                                 (j+1 == (int)n)
 579                                                 ?'\n':':');
 580                                         }
 581                                 }
 582
 583                         /* should be in the library */
 584                         else if ((sign_flag == i) && (x509req == 0))
 585                                 {
 586                                 BIO_printf(bio_err,"Getting Private key\n");
 587                                 if (Upkey == NULL)
 588                                         {
 589                                         Upkey=load_key(keyfile,keyformat);
 590                                         if (Upkey == NULL) goto end;
 591                                         }
 592 #ifndef NO_DSA
 593                                 if (Upkey->type == EVP_PKEY_DSA)
 594                                         digest=EVP_dss1();
 595 #endif
 596
 597                                 if (!sign(x,Upkey,days,digest)) goto end;
 598                                 }
 599                         else if (CA_flag == i)
 600                                 {
 601                                 BIO_printf(bio_err,"Getting CA Private Key\n");
 602                                 if (CAkeyfile != NULL)
 603                                         {
 604                                         CApkey=load_key(CAkeyfile,CAkeyformat);
 605                                         if (CApkey == NULL) goto end;
 606                                         }
 607 #ifndef NO_DSA
 608                                 if (CApkey->type == EVP_PKEY_DSA)
 609                                         digest=EVP_dss1();
 610 #endif
 611
 612                                 if (!x509_certify(ctx,CAfile,digest,x,xca,
 613                                         CApkey,
 614                                         CAserial,CA_createserial,days))
 615                                         goto end;
 616                                 }
 617                         else if (x509req == i)
 618                                 {
 619                                 EVP_PKEY *pk;
 620
 621                                 BIO_printf(bio_err,"Getting request Private Key\n");
 622                                 if (keyfile == NULL)
 623                                         {
 624                                         BIO_printf(bio_err,"no request key file specified\n");
 625                                         goto end;
 626                                         }
 627                                 else
 628                                         {
 629                                         pk=load_key(keyfile,FORMAT_PEM);
 630                                         if (pk == NULL) goto end;
 631                                         }
 632
 633                                 BIO_printf(bio_err,"Generating certificate request\n");
 634
 635                                 rq=X509_to_X509_REQ(x,pk,EVP_md5());
 636                                 EVP_PKEY_free(pk);
 637                                 if (rq == NULL)
 638                                         {
 639                                         ERR_print_errors(bio_err);
 640                                         goto end;
 641                                         }
 642                                 if (!noout)
 643                                         {
 644                                         X509_REQ_print(out,rq);
 645                                         PEM_write_bio_X509_REQ(out,rq);
 646                                         }
 647                                 noout=1;
 648                                 }
 649                         }
 650                 }
 651
 652         if (noout)
 653                 {
 654                 ret=0;
 655                 goto end;
 656                 }
 657
 658         if      (outformat == FORMAT_ASN1)
 659                 i=i2d_X509_bio(out,x);
 660         else if (outformat == FORMAT_PEM)
 661                 i=PEM_write_bio_X509(out,x);
 662         else if (outformat == FORMAT_NETSCAPE)
 663                 {
 664                 ASN1_HEADER ah;
 665                 ASN1_OCTET_STRING os;
 666
 667                 os.data=(unsigned char *)CERT_HDR;
 668                 os.length=strlen(CERT_HDR);
 669                 ah.header= &os;
 670                 ah.data=(char *)x;
 671                 ah.meth=X509_asn1_meth();
 672
 673                 /* no macro for this one yet */
 674                 i=ASN1_i2d_bio(i2d_ASN1_HEADER,out,(unsigned char *)&ah);
 675                 }
 676         else    {
 677                 BIO_printf(bio_err,"bad output format specified for outfile\n");
 678                 goto end;
 679                 }
 680         if (!i) {
 681                 BIO_printf(bio_err,"unable to write certificate\n");
 682                 ERR_print_errors(bio_err);
 683                 goto end;
 684                 }
 685         ret=0;
 686 end:
 687         OBJ_cleanup();
 688         if (out != NULL) BIO_free(out);
 689         if (STDout != NULL) BIO_free(STDout);
 690         if (ctx != NULL) X509_STORE_free(ctx);
 691         if (req != NULL) X509_REQ_free(req);
 692         if (x != NULL) X509_free(x);
 693         if (xca != NULL) X509_free(xca);
 694         if (Upkey != NULL) EVP_PKEY_free(Upkey);
 695         if (CApkey != NULL) EVP_PKEY_free(CApkey);
 696         if (rq != NULL) X509_REQ_free(rq);
 697         X509V3_EXT_cleanup();
 698         EXIT(ret);
 699         }
 700
 701 static int x509_certify(ctx,CAfile,digest,x,xca,pkey,serialfile,create,days)
 702 X509_STORE *ctx;
 703 char *CAfile;
 704 EVP_MD *digest;
 705 X509 *x;
 706 X509 *xca;
 707 EVP_PKEY *pkey;
 708 char *serialfile;
 709 int create;
 710 int days;
 711         {
 712         int ret=0;
 713         BIO *io=NULL;
 714         MS_STATIC char buf2[1024];
 715         char *buf=NULL,*p;
 716         BIGNUM *serial=NULL;
 717         ASN1_INTEGER *bs=NULL,bs2;
 718         X509_STORE_CTX xsc;
 719         EVP_PKEY *upkey;
 720
 721         upkey = X509_get_pubkey(xca);
 722         EVP_PKEY_copy_parameters(upkey,pkey);
 723         EVP_PKEY_free(upkey);
 724
 725         X509_STORE_CTX_init(&xsc,ctx,x,NULL);
 726         buf=(char *)Malloc(EVP_PKEY_size(pkey)*2+
 727                 ((serialfile == NULL)
 728                         ?(strlen(CAfile)+strlen(POSTFIX)+1)
 729                         :(strlen(serialfile)))+1);
 730         if (buf == NULL) { BIO_printf(bio_err,"out of mem\n"); goto end; }
 731         if (serialfile == NULL)
 732                 {
 733                 strcpy(buf,CAfile);
 734                 for (p=buf; *p; p++)
 735                         if (*p == '.')
 736                                 {
 737                                 *p='\0';
 738                                 break;
 739                                 }
 740                 strcat(buf,POSTFIX);
 741                 }
 742         else
 743                 strcpy(buf,serialfile);
 744         serial=BN_new();
 745         bs=ASN1_INTEGER_new();
 746         if ((serial == NULL) || (bs == NULL))
 747                 {
 748                 ERR_print_errors(bio_err);
 749                 goto end;
 750                 }
 751
 752         io=BIO_new(BIO_s_file());
 753         if (io == NULL)
 754                 {
 755                 ERR_print_errors(bio_err);
 756                 goto end;
 757                 }
 758
 759         if (BIO_read_filename(io,buf) <= 0)
 760                 {
 761                 if (!create)
 762                         {
 763                         perror(buf);
 764                         goto end;
 765                         }
 766                 else
 767                         {
 768                         ASN1_INTEGER_set(bs,0);
 769                         BN_zero(serial);
 770                         }
 771                 }
 772         else
 773                 {
 774                 if (!a2i_ASN1_INTEGER(io,bs,buf2,1024))
 775                         {
 776                         BIO_printf(bio_err,"unable to load serial number from %s\n",buf);
 777                         ERR_print_errors(bio_err);
 778                         goto end;
 779                         }
 780                 else
 781                         {
 782                         serial=BN_bin2bn(bs->data,bs->length,serial);
 783                         if (serial == NULL)
 784                                 {
 785                                 BIO_printf(bio_err,"error converting bin 2 bn");
 786                                 goto end;
 787                                 }
 788                         }
 789                 }
 790
 791         if (!BN_add_word(serial,1))
 792                 { BIO_printf(bio_err,"add_word failure\n"); goto end; }
 793         bs2.data=(unsigned char *)buf2;
 794         bs2.length=BN_bn2bin(serial,bs2.data);
 795
 796         if (BIO_write_filename(io,buf) <= 0)
 797                 {
 798                 BIO_printf(bio_err,"error attempting to write serial number file\n");
 799                 perror(buf);
 800                 goto end;
 801                 }
 802         i2a_ASN1_INTEGER(io,&bs2);
 803         BIO_puts(io,"\n");
 804         BIO_free(io);
 805         io=NULL;
 806
 807         if (!X509_STORE_add_cert(ctx,x)) goto end;
 808
 809         /* NOTE: this certificate can/should be self signed, unless it was
 810          * a certificate request in which case it is not. */
 811         X509_STORE_CTX_set_cert(&xsc,x);
 812         if (!reqfile && !X509_verify_cert(&xsc))
 813                 goto end;
 814
 815         if (!X509_check_private_key(xca,pkey))
 816                 {
 817                 BIO_printf(bio_err,"CA certificate and CA private key do not match\n");
 818                 goto end;
 819                 }
 820
 821         if (!X509_set_issuer_name(x,X509_get_subject_name(xca))) goto end;
 822         if (!X509_set_serialNumber(x,bs)) goto end;
 823
 824         if (X509_gmtime_adj(X509_get_notBefore(x),0L) == NULL)
 825                 goto end;
 826
 827         /* hardwired expired */
 828         if (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)
 829                 goto end;
 830
 831         /* don't save DSA parameters in child if parent has them
 832          * and the parents and the childs are the same. */
 833         upkey=X509_get_pubkey(x);
 834         if (!EVP_PKEY_missing_parameters(pkey) &&
 835                 (EVP_PKEY_cmp_parameters(pkey,upkey) == 0))
 836                 {
 837                 EVP_PKEY_save_parameters(upkey,0);
 838                 /* Force a re-write */
 839                 X509_set_pubkey(x,upkey);
 840                 }
 841         EVP_PKEY_free(upkey);
 842
 843         if (!X509_sign(x,pkey,digest)) goto end;
 844         ret=1;
 845 end:
 846         X509_STORE_CTX_cleanup(&xsc);
 847         if (!ret)
 848                 ERR_print_errors(bio_err);
 849         if (buf != NULL) Free(buf);
 850         if (bs != NULL) ASN1_INTEGER_free(bs);
 851         if (io != NULL) BIO_free(io);
 852         if (serial != NULL) BN_free(serial);
 853         return(ret);
 854         }
 855
 856 static int MS_CALLBACK callb(ok, ctx)
 857 int ok;
 858 X509_STORE_CTX *ctx;
 859         {
 860         char buf[256];
 861         int err;
 862         X509 *err_cert;
 863
 864         /* it is ok to use a self signed certificate
 865          * This case will catch both the initial ok == 0 and the
 866          * final ok == 1 calls to this function */
 867         err=X509_STORE_CTX_get_error(ctx);
 868         if (err == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
 869                 return(1);
 870
 871         /* BAD we should have gotten an error.  Normally if everything
 872          * worked X509_STORE_CTX_get_error(ctx) will still be set to
 873          * DEPTH_ZERO_SELF_.... */
 874         if (ok)
 875                 {
 876                 BIO_printf(bio_err,"error with certificate to be certified - should be self signed\n");
 877                 return(0);
 878                 }
 879         else
 880                 {
 881                 err_cert=X509_STORE_CTX_get_current_cert(ctx);
 882                 X509_NAME_oneline(X509_get_subject_name(err_cert),buf,256);
 883                 BIO_printf(bio_err,"%s\n",buf);
 884                 BIO_printf(bio_err,"error with certificate - error %d at depth %d\n%s\n",
 885                         err,X509_STORE_CTX_get_error_depth(ctx),
 886                         X509_verify_cert_error_string(err));
 887                 return(1);
 888                 }
 889         }
 890
 891 static EVP_PKEY *load_key(file, format)
 892 char *file;
 893 int format;
 894         {
 895         BIO *key=NULL;
 896         EVP_PKEY *pkey=NULL;
 897
 898         if (file == NULL)
 899                 {
 900                 BIO_printf(bio_err,"no keyfile specified\n");
 901                 goto end;
 902                 }
 903         key=BIO_new(BIO_s_file());
 904         if (key == NULL)
 905                 {
 906                 ERR_print_errors(bio_err);
 907                 goto end;
 908                 }
 909         if (BIO_read_filename(key,file) <= 0)
 910                 {
 911                 perror(file);
 912                 goto end;
 913                 }
 914 #ifndef NO_RSA
 915         if      (format == FORMAT_ASN1)
 916                 {
 917                 RSA *rsa;
 918
 919                 rsa=d2i_RSAPrivateKey_bio(key,NULL);
 920                 if (rsa != NULL)
 921                         {
 922                         if ((pkey=EVP_PKEY_new()) != NULL)
 923                                 EVP_PKEY_assign_RSA(pkey,rsa);
 924                         else
 925                                 RSA_free(rsa);
 926                         }
 927                 }
 928         else
 929 #endif
 930                 if (format == FORMAT_PEM)
 931                 {
 932                 pkey=PEM_read_bio_PrivateKey(key,NULL,NULL);
 933                 }
 934         else
 935                 {
 936                 BIO_printf(bio_err,"bad input format specified for key\n");
 937                 goto end;
 938                 }
 939 end:
 940         if (key != NULL) BIO_free(key);
 941         if (pkey == NULL)
 942                 BIO_printf(bio_err,"unable to load Private Key\n");
 943         return(pkey);
 944         }
 945
 946 static X509 *load_cert(file, format)
 947 char *file;
 948 int format;
 949         {
 950         ASN1_HEADER *ah=NULL;
 951         BUF_MEM *buf=NULL;
 952         X509 *x=NULL;
 953         BIO *cert;
 954
 955         if ((cert=BIO_new(BIO_s_file())) == NULL)
 956                 {
 957                 ERR_print_errors(bio_err);
 958                 goto end;
 959                 }
 960
 961         if (file == NULL)
 962                 BIO_set_fp(cert,stdin,BIO_NOCLOSE);
 963         else
 964                 {
 965                 if (BIO_read_filename(cert,file) <= 0)
 966                         {
 967                         perror(file);
 968                         goto end;
 969                         }
 970                 }
 971         if      (format == FORMAT_ASN1)
 972                 x=d2i_X509_bio(cert,NULL);
 973         else if (format == FORMAT_NETSCAPE)
 974                 {
 975                 unsigned char *p,*op;
 976                 int size=0,i;
 977
 978                 /* We sort of have to do it this way because it is sort of nice
 979                  * to read the header first and check it, then
 980                  * try to read the certificate */
 981                 buf=BUF_MEM_new();
 982                 for (;;)
 983                         {
 984                         if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10)))
 985                                 goto end;
 986                         i=BIO_read(cert,&(buf->data[size]),1024*10);
 987                         size+=i;
 988                         if (i == 0) break;
 989                         if (i < 0)
 990                                 {
 991                                 perror("reading certificate");
 992                                 goto end;
 993                                 }
 994                         }
 995                 p=(unsigned char *)buf->data;
 996                 op=p;
 997
 998                 /* First load the header */
 999                 if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)
1000                         goto end;
1001                 if ((ah->header == NULL) || (ah->header->data == NULL) ||
1002                         (strncmp(CERT_HDR,(char *)ah->header->data,
1003                         ah->header->length) != 0))
1004                         {
1005                         BIO_printf(bio_err,"Error reading header on certificate\n");
1006                         goto end;
1007                         }
1008                 /* header is ok, so now read the object */
1009                 p=op;
1010                 ah->meth=X509_asn1_meth();
1011                 if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)
1012                         goto end;
1013                 x=(X509 *)ah->data;
1014                 ah->data=NULL;
1015                 }
1016         else if (format == FORMAT_PEM)
1017                 x=PEM_read_bio_X509(cert,NULL,NULL);
1018         else    {
1019                 BIO_printf(bio_err,"bad input format specified for input cert\n");
1020                 goto end;
1021                 }
1022 end:
1023         if (x == NULL)
1024                 {
1025                 BIO_printf(bio_err,"unable to load certificate\n");
1026                 ERR_print_errors(bio_err);
1027                 }
1028         if (ah != NULL) ASN1_HEADER_free(ah);
1029         if (cert != NULL) BIO_free(cert);
1030         if (buf != NULL) BUF_MEM_free(buf);
1031         return(x);
1032         }
1033
1034 /* self sign */
1035 static int sign(x, pkey, days, digest)
1036 X509 *x;
1037 EVP_PKEY *pkey;
1038 int days;
1039 EVP_MD *digest;
1040         {
1041
1042         EVP_PKEY *pktmp;
1043
1044         pktmp = X509_get_pubkey(x);
1045         EVP_PKEY_copy_parameters(pktmp,pkey);
1046         EVP_PKEY_save_parameters(pktmp,1);
1047         EVP_PKEY_free(pktmp);
1048
1049         if (!X509_set_issuer_name(x,X509_get_subject_name(x))) goto err;
1050         if (X509_gmtime_adj(X509_get_notBefore(x),0) == NULL) goto err;
1051
1052         /* Lets just make it 12:00am GMT, Jan 1 1970 */
1053         /* memcpy(x->cert_info->validity->notBefore,"700101120000Z",13); */
1054         /* 28 days to be certified */
1055
1056         if (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)
1057                 goto err;
1058
1059         if (!X509_set_pubkey(x,pkey)) goto err;
1060         if (!X509_sign(x,pkey,digest)) goto err;
1061         return(1);
1062 err:
1063         ERR_print_errors(bio_err);
1064         return(0);
1065         }