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                                 if (modulus == i)
 472                                 {
 473                                 EVP_PKEY *pkey;
 474
 475                                 pkey=X509_get_pubkey(x);
 476                                 if (pkey == NULL)
 477                                         {
 478                                         BIO_printf(bio_err,"Modulus=unavailable\n");
 479                                         ERR_print_errors(bio_err);
 480                                         goto end;
 481                                         }
 482                                 BIO_printf(STDout,"Modulus=");
 483 #ifndef NO_RSA
 484                                 if (pkey->type == EVP_PKEY_RSA)
 485                                         BN_print(STDout,pkey->pkey.rsa->n);
 486                                 else
 487 #endif
 488 #ifndef NO_DSA
 489                                 if (pkey->type == EVP_PKEY_DSA)
 490                                         BN_print(STDout,pkey->pkey.dsa->pub_key);
 491                                 else
 492 #endif
 493                                         BIO_printf(STDout,"Wrong Algorithm type");
 494                                 BIO_printf(STDout,"\n");
 495                                 EVP_PKEY_free(pkey);
 496                                 }
 497                         else
 498                                 if (C == i)
 499                                 {
 500                                 unsigned char *d;
 501                                 char *m;
 502                                 int y,z;
 503
 504                                 X509_NAME_oneline(X509_get_subject_name(x),
 505                                         buf,256);
 506                                 BIO_printf(STDout,"/* subject:%s */\n",buf);
 507                                 m=X509_NAME_oneline(
 508                                         X509_get_issuer_name(x),buf,256);
 509                                 BIO_printf(STDout,"/* issuer :%s */\n",buf);
 510
 511                                 z=i2d_X509(x,NULL);
 512                                 m=Malloc(z);
 513
 514                                 d=(unsigned char *)m;
 515                                 z=i2d_X509_NAME(X509_get_subject_name(x),&d);
 516                                 BIO_printf(STDout,"unsigned char XXX_subject_name[%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) BIO_printf(STDout,"\n");
 522                                         }
 523                                 if (y%16 != 0) BIO_printf(STDout,"\n");
 524                                 BIO_printf(STDout,"};\n");
 525
 526                                 z=i2d_X509_PUBKEY(X509_get_X509_PUBKEY(x),&d);
 527                                 BIO_printf(STDout,"unsigned char XXX_public_key[%d]={\n",z);
 528                                 d=(unsigned char *)m;
 529                                 for (y=0; y<z; y++)
 530                                         {
 531                                         BIO_printf(STDout,"0x%02X,",d[y]);
 532                                         if ((y & 0x0f) == 0x0f)
 533                                                 BIO_printf(STDout,"\n");
 534                                         }
 535                                 if (y%16 != 0) BIO_printf(STDout,"\n");
 536                                 BIO_printf(STDout,"};\n");
 537
 538                                 z=i2d_X509(x,&d);
 539                                 BIO_printf(STDout,"unsigned char XXX_certificate[%d]={\n",z);
 540                                 d=(unsigned char *)m;
 541                                 for (y=0; y<z; y++)
 542                                         {
 543                                         BIO_printf(STDout,"0x%02X,",d[y]);
 544                                         if ((y & 0x0f) == 0x0f)
 545                                                 BIO_printf(STDout,"\n");
 546                                         }
 547                                 if (y%16 != 0) BIO_printf(STDout,"\n");
 548                                 BIO_printf(STDout,"};\n");
 549
 550                                 Free(m);
 551                                 }
 552                         else if (text == i)
 553                                 {
 554                                 X509_print(out,x);
 555                                 }
 556                         else if (startdate == i)
 557                                 {
 558                                 BIO_puts(STDout,"notBefore=");
 559                                 ASN1_TIME_print(STDout,X509_get_notBefore(x));
 560                                 BIO_puts(STDout,"\n");
 561                                 }
 562                         else if (enddate == i)
 563                                 {
 564                                 BIO_puts(STDout,"notAfter=");
 565                                 ASN1_TIME_print(STDout,X509_get_notAfter(x));
 566                                 BIO_puts(STDout,"\n");
 567                                 }
 568                         else if (fingerprint == i)
 569                                 {
 570                                 int j;
 571                                 unsigned int n;
 572                                 unsigned char md[EVP_MAX_MD_SIZE];
 573
 574                                 if (!X509_digest(x,EVP_md5(),md,&n))
 575                                         {
 576                                         BIO_printf(bio_err,"out of memory\n");
 577                                         goto end;
 578                                         }
 579                                 BIO_printf(STDout,"MD5 Fingerprint=");
 580                                 for (j=0; j<(int)n; j++)
 581                                         {
 582                                         BIO_printf(STDout,"%02X%c",md[j],
 583                                                 (j+1 == (int)n)
 584                                                 ?'\n':':');
 585                                         }
 586                                 }
 587
 588                         /* should be in the library */
 589                         else if ((sign_flag == i) && (x509req == 0))
 590                                 {
 591                                 BIO_printf(bio_err,"Getting Private key\n");
 592                                 if (Upkey == NULL)
 593                                         {
 594                                         Upkey=load_key(keyfile,keyformat);
 595                                         if (Upkey == NULL) goto end;
 596                                         }
 597 #ifndef NO_DSA
 598                                 if (Upkey->type == EVP_PKEY_DSA)
 599                                         digest=EVP_dss1();
 600 #endif
 601
 602                                 if (!sign(x,Upkey,days,digest)) goto end;
 603                                 }
 604                         else if (CA_flag == i)
 605                                 {
 606                                 BIO_printf(bio_err,"Getting CA Private Key\n");
 607                                 if (CAkeyfile != NULL)
 608                                         {
 609                                         CApkey=load_key(CAkeyfile,CAkeyformat);
 610                                         if (CApkey == NULL) goto end;
 611                                         }
 612 #ifndef NO_DSA
 613                                 if (CApkey->type == EVP_PKEY_DSA)
 614                                         digest=EVP_dss1();
 615 #endif
 616
 617                                 if (!x509_certify(ctx,CAfile,digest,x,xca,
 618                                         CApkey,
 619                                         CAserial,CA_createserial,days))
 620                                         goto end;
 621                                 }
 622                         else if (x509req == i)
 623                                 {
 624                                 EVP_PKEY *pk;
 625
 626                                 BIO_printf(bio_err,"Getting request Private Key\n");
 627                                 if (keyfile == NULL)
 628                                         {
 629                                         BIO_printf(bio_err,"no request key file specified\n");
 630                                         goto end;
 631                                         }
 632                                 else
 633                                         {
 634                                         pk=load_key(keyfile,FORMAT_PEM);
 635                                         if (pk == NULL) goto end;
 636                                         }
 637
 638                                 BIO_printf(bio_err,"Generating certificate request\n");
 639
 640                                 rq=X509_to_X509_REQ(x,pk,EVP_md5());
 641                                 EVP_PKEY_free(pk);
 642                                 if (rq == NULL)
 643                                         {
 644                                         ERR_print_errors(bio_err);
 645                                         goto end;
 646                                         }
 647                                 if (!noout)
 648                                         {
 649                                         X509_REQ_print(out,rq);
 650                                         PEM_write_bio_X509_REQ(out,rq);
 651                                         }
 652                                 noout=1;
 653                                 }
 654                         }
 655                 }
 656
 657         if (noout)
 658                 {
 659                 ret=0;
 660                 goto end;
 661                 }
 662
 663         if      (outformat == FORMAT_ASN1)
 664                 i=i2d_X509_bio(out,x);
 665         else if (outformat == FORMAT_PEM)
 666                 i=PEM_write_bio_X509(out,x);
 667         else if (outformat == FORMAT_NETSCAPE)
 668                 {
 669                 ASN1_HEADER ah;
 670                 ASN1_OCTET_STRING os;
 671
 672                 os.data=(unsigned char *)CERT_HDR;
 673                 os.length=strlen(CERT_HDR);
 674                 ah.header= &os;
 675                 ah.data=(char *)x;
 676                 ah.meth=X509_asn1_meth();
 677
 678                 /* no macro for this one yet */
 679                 i=ASN1_i2d_bio(i2d_ASN1_HEADER,out,(unsigned char *)&ah);
 680                 }
 681         else    {
 682                 BIO_printf(bio_err,"bad output format specified for outfile\n");
 683                 goto end;
 684                 }
 685         if (!i) {
 686                 BIO_printf(bio_err,"unable to write certificate\n");
 687                 ERR_print_errors(bio_err);
 688                 goto end;
 689                 }
 690         ret=0;
 691 end:
 692         OBJ_cleanup();
 693         if (out != NULL) BIO_free(out);
 694         if (STDout != NULL) BIO_free(STDout);
 695         if (ctx != NULL) X509_STORE_free(ctx);
 696         if (req != NULL) X509_REQ_free(req);
 697         if (x != NULL) X509_free(x);
 698         if (xca != NULL) X509_free(xca);
 699         if (Upkey != NULL) EVP_PKEY_free(Upkey);
 700         if (CApkey != NULL) EVP_PKEY_free(CApkey);
 701         if (rq != NULL) X509_REQ_free(rq);
 702         X509V3_EXT_cleanup();
 703         EXIT(ret);
 704         }
 705
 706 static int x509_certify(ctx,CAfile,digest,x,xca,pkey,serialfile,create,days)
 707 X509_STORE *ctx;
 708 char *CAfile;
 709 EVP_MD *digest;
 710 X509 *x;
 711 X509 *xca;
 712 EVP_PKEY *pkey;
 713 char *serialfile;
 714 int create;
 715 int days;
 716         {
 717         int ret=0;
 718         BIO *io=NULL;
 719         MS_STATIC char buf2[1024];
 720         char *buf=NULL,*p;
 721         BIGNUM *serial=NULL;
 722         ASN1_INTEGER *bs=NULL,bs2;
 723         X509_STORE_CTX xsc;
 724         EVP_PKEY *upkey;
 725
 726         upkey = X509_get_pubkey(xca);
 727         EVP_PKEY_copy_parameters(upkey,pkey);
 728         EVP_PKEY_free(upkey);
 729
 730         X509_STORE_CTX_init(&xsc,ctx,x,NULL);
 731         buf=(char *)Malloc(EVP_PKEY_size(pkey)*2+
 732                 ((serialfile == NULL)
 733                         ?(strlen(CAfile)+strlen(POSTFIX)+1)
 734                         :(strlen(serialfile)))+1);
 735         if (buf == NULL) { BIO_printf(bio_err,"out of mem\n"); goto end; }
 736         if (serialfile == NULL)
 737                 {
 738                 strcpy(buf,CAfile);
 739                 for (p=buf; *p; p++)
 740                         if (*p == '.')
 741                                 {
 742                                 *p='\0';
 743                                 break;
 744                                 }
 745                 strcat(buf,POSTFIX);
 746                 }
 747         else
 748                 strcpy(buf,serialfile);
 749         serial=BN_new();
 750         bs=ASN1_INTEGER_new();
 751         if ((serial == NULL) || (bs == NULL))
 752                 {
 753                 ERR_print_errors(bio_err);
 754                 goto end;
 755                 }
 756
 757         io=BIO_new(BIO_s_file());
 758         if (io == NULL)
 759                 {
 760                 ERR_print_errors(bio_err);
 761                 goto end;
 762                 }
 763
 764         if (BIO_read_filename(io,buf) <= 0)
 765                 {
 766                 if (!create)
 767                         {
 768                         perror(buf);
 769                         goto end;
 770                         }
 771                 else
 772                         {
 773                         ASN1_INTEGER_set(bs,0);
 774                         BN_zero(serial);
 775                         }
 776                 }
 777         else
 778                 {
 779                 if (!a2i_ASN1_INTEGER(io,bs,buf2,1024))
 780                         {
 781                         BIO_printf(bio_err,"unable to load serial number from %s\n",buf);
 782                         ERR_print_errors(bio_err);
 783                         goto end;
 784                         }
 785                 else
 786                         {
 787                         serial=BN_bin2bn(bs->data,bs->length,serial);
 788                         if (serial == NULL)
 789                                 {
 790                                 BIO_printf(bio_err,"error converting bin 2 bn");
 791                                 goto end;
 792                                 }
 793                         }
 794                 }
 795
 796         if (!BN_add_word(serial,1))
 797                 { BIO_printf(bio_err,"add_word failure\n"); goto end; }
 798         bs2.data=(unsigned char *)buf2;
 799         bs2.length=BN_bn2bin(serial,bs2.data);
 800
 801         if (BIO_write_filename(io,buf) <= 0)
 802                 {
 803                 BIO_printf(bio_err,"error attempting to write serial number file\n");
 804                 perror(buf);
 805                 goto end;
 806                 }
 807         i2a_ASN1_INTEGER(io,&bs2);
 808         BIO_puts(io,"\n");
 809         BIO_free(io);
 810         io=NULL;
 811
 812         if (!X509_STORE_add_cert(ctx,x)) goto end;
 813
 814         /* NOTE: this certificate can/should be self signed, unless it was
 815          * a certificate request in which case it is not. */
 816         X509_STORE_CTX_set_cert(&xsc,x);
 817         if (!reqfile && !X509_verify_cert(&xsc))
 818                 goto end;
 819
 820         if (!X509_check_private_key(xca,pkey))
 821                 {
 822                 BIO_printf(bio_err,"CA certificate and CA private key do not match\n");
 823                 goto end;
 824                 }
 825
 826         if (!X509_set_issuer_name(x,X509_get_subject_name(xca))) goto end;
 827         if (!X509_set_serialNumber(x,bs)) goto end;
 828
 829         if (X509_gmtime_adj(X509_get_notBefore(x),0L) == NULL)
 830                 goto end;
 831
 832         /* hardwired expired */
 833         if (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)
 834                 goto end;
 835
 836         /* don't save DSA parameters in child if parent has them
 837          * and the parents and the childs are the same. */
 838         upkey=X509_get_pubkey(x);
 839         if (!EVP_PKEY_missing_parameters(pkey) &&
 840                 (EVP_PKEY_cmp_parameters(pkey,upkey) == 0))
 841                 {
 842                 EVP_PKEY_save_parameters(upkey,0);
 843                 /* Force a re-write */
 844                 X509_set_pubkey(x,upkey);
 845                 }
 846         EVP_PKEY_free(upkey);
 847
 848         if (!X509_sign(x,pkey,digest)) goto end;
 849         ret=1;
 850 end:
 851         X509_STORE_CTX_cleanup(&xsc);
 852         if (!ret)
 853                 ERR_print_errors(bio_err);
 854         if (buf != NULL) Free(buf);
 855         if (bs != NULL) ASN1_INTEGER_free(bs);
 856         if (io != NULL) BIO_free(io);
 857         if (serial != NULL) BN_free(serial);
 858         return(ret);
 859         }
 860
 861 static int MS_CALLBACK callb(ok, ctx)
 862 int ok;
 863 X509_STORE_CTX *ctx;
 864         {
 865         char buf[256];
 866         int err;
 867         X509 *err_cert;
 868
 869         /* it is ok to use a self signed certificate
 870          * This case will catch both the initial ok == 0 and the
 871          * final ok == 1 calls to this function */
 872         err=X509_STORE_CTX_get_error(ctx);
 873         if (err == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
 874                 return(1);
 875
 876         /* BAD we should have gotten an error.  Normally if everything
 877          * worked X509_STORE_CTX_get_error(ctx) will still be set to
 878          * DEPTH_ZERO_SELF_.... */
 879         if (ok)
 880                 {
 881                 BIO_printf(bio_err,"error with certificate to be certified - should be self signed\n");
 882                 return(0);
 883                 }
 884         else
 885                 {
 886                 err_cert=X509_STORE_CTX_get_current_cert(ctx);
 887                 X509_NAME_oneline(X509_get_subject_name(err_cert),buf,256);
 888                 BIO_printf(bio_err,"%s\n",buf);
 889                 BIO_printf(bio_err,"error with certificate - error %d at depth %d\n%s\n",
 890                         err,X509_STORE_CTX_get_error_depth(ctx),
 891                         X509_verify_cert_error_string(err));
 892                 return(1);
 893                 }
 894         }
 895
 896 static EVP_PKEY *load_key(file, format)
 897 char *file;
 898 int format;
 899         {
 900         BIO *key=NULL;
 901         EVP_PKEY *pkey=NULL;
 902
 903         if (file == NULL)
 904                 {
 905                 BIO_printf(bio_err,"no keyfile specified\n");
 906                 goto end;
 907                 }
 908         key=BIO_new(BIO_s_file());
 909         if (key == NULL)
 910                 {
 911                 ERR_print_errors(bio_err);
 912                 goto end;
 913                 }
 914         if (BIO_read_filename(key,file) <= 0)
 915                 {
 916                 perror(file);
 917                 goto end;
 918                 }
 919 #ifndef NO_RSA
 920         if      (format == FORMAT_ASN1)
 921                 {
 922                 RSA *rsa;
 923
 924                 rsa=d2i_RSAPrivateKey_bio(key,NULL);
 925                 if (rsa != NULL)
 926                         {
 927                         if ((pkey=EVP_PKEY_new()) != NULL)
 928                                 EVP_PKEY_assign_RSA(pkey,rsa);
 929                         else
 930                                 RSA_free(rsa);
 931                         }
 932                 }
 933         else
 934 #endif
 935                 if (format == FORMAT_PEM)
 936                 {
 937                 pkey=PEM_read_bio_PrivateKey(key,NULL,NULL);
 938                 }
 939         else
 940                 {
 941                 BIO_printf(bio_err,"bad input format specified for key\n");
 942                 goto end;
 943                 }
 944 end:
 945         if (key != NULL) BIO_free(key);
 946         if (pkey == NULL)
 947                 BIO_printf(bio_err,"unable to load Private Key\n");
 948         return(pkey);
 949         }
 950
 951 static X509 *load_cert(file, format)
 952 char *file;
 953 int format;
 954         {
 955         ASN1_HEADER *ah=NULL;
 956         BUF_MEM *buf=NULL;
 957         X509 *x=NULL;
 958         BIO *cert;
 959
 960         if ((cert=BIO_new(BIO_s_file())) == NULL)
 961                 {
 962                 ERR_print_errors(bio_err);
 963                 goto end;
 964                 }
 965
 966         if (file == NULL)
 967                 BIO_set_fp(cert,stdin,BIO_NOCLOSE);
 968         else
 969                 {
 970                 if (BIO_read_filename(cert,file) <= 0)
 971                         {
 972                         perror(file);
 973                         goto end;
 974                         }
 975                 }
 976         if      (format == FORMAT_ASN1)
 977                 x=d2i_X509_bio(cert,NULL);
 978         else if (format == FORMAT_NETSCAPE)
 979                 {
 980                 unsigned char *p,*op;
 981                 int size=0,i;
 982
 983                 /* We sort of have to do it this way because it is sort of nice
 984                  * to read the header first and check it, then
 985                  * try to read the certificate */
 986                 buf=BUF_MEM_new();
 987                 for (;;)
 988                         {
 989                         if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10)))
 990                                 goto end;
 991                         i=BIO_read(cert,&(buf->data[size]),1024*10);
 992                         size+=i;
 993                         if (i == 0) break;
 994                         if (i < 0)
 995                                 {
 996                                 perror("reading certificate");
 997                                 goto end;
 998                                 }
 999                         }
1000                 p=(unsigned char *)buf->data;
1001                 op=p;
1002
1003                 /* First load the header */
1004                 if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)
1005                         goto end;
1006                 if ((ah->header == NULL) || (ah->header->data == NULL) ||
1007                         (strncmp(CERT_HDR,(char *)ah->header->data,
1008                         ah->header->length) != 0))
1009                         {
1010                         BIO_printf(bio_err,"Error reading header on certificate\n");
1011                         goto end;
1012                         }
1013                 /* header is ok, so now read the object */
1014                 p=op;
1015                 ah->meth=X509_asn1_meth();
1016                 if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)
1017                         goto end;
1018                 x=(X509 *)ah->data;
1019                 ah->data=NULL;
1020                 }
1021         else if (format == FORMAT_PEM)
1022                 x=PEM_read_bio_X509(cert,NULL,NULL);
1023         else    {
1024                 BIO_printf(bio_err,"bad input format specified for input cert\n");
1025                 goto end;
1026                 }
1027 end:
1028         if (x == NULL)
1029                 {
1030                 BIO_printf(bio_err,"unable to load certificate\n");
1031                 ERR_print_errors(bio_err);
1032                 }
1033         if (ah != NULL) ASN1_HEADER_free(ah);
1034         if (cert != NULL) BIO_free(cert);
1035         if (buf != NULL) BUF_MEM_free(buf);
1036         return(x);
1037         }
1038
1039 /* self sign */
1040 static int sign(x, pkey, days, digest)
1041 X509 *x;
1042 EVP_PKEY *pkey;
1043 int days;
1044 EVP_MD *digest;
1045         {
1046
1047         EVP_PKEY *pktmp;
1048
1049         pktmp = X509_get_pubkey(x);
1050         EVP_PKEY_copy_parameters(pktmp,pkey);
1051         EVP_PKEY_save_parameters(pktmp,1);
1052         EVP_PKEY_free(pktmp);
1053
1054         if (!X509_set_issuer_name(x,X509_get_subject_name(x))) goto err;
1055         if (X509_gmtime_adj(X509_get_notBefore(x),0) == NULL) goto err;
1056
1057         /* Lets just make it 12:00am GMT, Jan 1 1970 */
1058         /* memcpy(x->cert_info->validity->notBefore,"700101120000Z",13); */
1059         /* 28 days to be certified */
1060
1061         if (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)
1062                 goto err;
1063
1064         if (!X509_set_pubkey(x,pkey)) goto err;
1065         if (!X509_sign(x,pkey,digest)) goto err;
1066         return(1);
1067 err:
1068         ERR_print_errors(bio_err);
1069         return(0);
1070         }