apps/x509.c

   1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   2  * All rights reserved.
   3  *
   4  * This package is an SSL implementation written
   5  * by Eric Young (eay@cryptsoft.com).
   6  * The implementation was written so as to conform with Netscapes SSL.
   7  *
   8  * This library is free for commercial and non-commercial use as long as
   9  * the following conditions are aheared to.  The following conditions
  10  * apply to all code found in this distribution, be it the RC4, RSA,
  11  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  12  * included with this distribution is covered by the same copyright terms
  13  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  14  *
  15  * Copyright remains Eric Young's, and as such any Copyright notices in
  16  * the code are not to be removed.
  17  * If this package is used in a product, Eric Young should be given attribution
  18  * as the author of the parts of the library used.
  19  * This can be in the form of a textual message at program startup or
  20  * in documentation (online or textual) provided with the package.
  21  *
  22  * Redistribution and use in source and binary forms, with or without
  23  * modification, are permitted provided that the following conditions
  24  * are met:
  25  * 1. Redistributions of source code must retain the copyright
  26  *    notice, this list of conditions and the following disclaimer.
  27  * 2. Redistributions in binary form must reproduce the above copyright
  28  *    notice, this list of conditions and the following disclaimer in the
  29  *    documentation and/or other materials provided with the distribution.
  30  * 3. All advertising materials mentioning features or use of this software
  31  *    must display the following acknowledgement:
  32  *    "This product includes cryptographic software written by
  33  *     Eric Young (eay@cryptsoft.com)"
  34  *    The word 'cryptographic' can be left out if the rouines from the library
  35  *    being used are not cryptographic related :-).
  36  * 4. If you include any Windows specific code (or a derivative thereof) from
  37  *    the apps directory (application code) you must include an acknowledgement:
  38  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  50  * SUCH DAMAGE.
  51  *
  52  * The licence and distribution terms for any publically available version or
  53  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  54  * copied and put under another distribution licence
  55  * [including the GNU Public Licence.]
  56  */
  57
  58 #include <stdio.h>
  59 #include <stdlib.h>
  60 #include <string.h>
  61 #include "apps.h"
  62 #include <openssl/bio.h>
  63 #include <openssl/asn1.h>
  64 #include <openssl/err.h>
  65 #include <openssl/bn.h>
  66 #include <openssl/evp.h>
  67 #include <openssl/x509.h>
  68 #include <openssl/x509v3.h>
  69 #include <openssl/objects.h>
  70 #include <openssl/pem.h>
  71 #ifndef OPENSSL_NO_RSA
  72 # include <openssl/rsa.h>
  73 #endif
  74 #ifndef OPENSSL_NO_DSA
  75 # include <openssl/dsa.h>
  76 #endif
  77
  78 #undef POSTFIX
  79 #define POSTFIX ".srl"
  80 #define DEF_DAYS        30
  81
  82 static int callb(int ok, X509_STORE_CTX *ctx);
  83 static int sign(X509 *x, EVP_PKEY *pkey, int days, int clrext,
  84                 const EVP_MD *digest, CONF *conf, char *section);
  85 static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
  86                         X509 *x, X509 *xca, EVP_PKEY *pkey,
  87                         STACK_OF(OPENSSL_STRING) *sigopts, char *serial,
  88                         int create, int days, int clrext, CONF *conf,
  89                         char *section, ASN1_INTEGER *sno, int reqfile);
  90 static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt);
  91
  92 typedef enum OPTION_choice {
  93     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
  94     OPT_INFORM, OPT_OUTFORM, OPT_KEYFORM, OPT_REQ, OPT_CAFORM,
  95     OPT_CAKEYFORM, OPT_SIGOPT, OPT_DAYS, OPT_PASSIN, OPT_EXTFILE,
  96     OPT_EXTENSIONS, OPT_IN, OPT_OUT, OPT_SIGNKEY, OPT_CA,
  97     OPT_CAKEY, OPT_CASERIAL, OPT_SET_SERIAL, OPT_FORCE_PUBKEY,
  98     OPT_ADDTRUST, OPT_ADDREJECT, OPT_SETALIAS, OPT_CERTOPT, OPT_NAMEOPT,
  99     OPT_C, OPT_EMAIL, OPT_OCSP_URI, OPT_SERIAL, OPT_NEXT_SERIAL,
 100     OPT_MODULUS, OPT_PUBKEY, OPT_X509TOREQ, OPT_TEXT, OPT_HASH,
 101     OPT_ISSUER_HASH, OPT_SUBJECT, OPT_ISSUER, OPT_FINGERPRINT, OPT_DATES,
 102     OPT_PURPOSE, OPT_STARTDATE, OPT_ENDDATE, OPT_CHECKEND, OPT_CHECKHOST,
 103     OPT_CHECKEMAIL, OPT_CHECKIP, OPT_NOOUT, OPT_TRUSTOUT, OPT_CLRTRUST,
 104     OPT_CLRREJECT, OPT_ALIAS, OPT_CACREATESERIAL, OPT_CLREXT, OPT_OCSPID,
 105     OPT_SUBJECT_HASH_OLD,
 106     OPT_ISSUER_HASH_OLD,
 107     OPT_BADSIG, OPT_MD, OPT_ENGINE, OPT_NOCERT
 108 } OPTION_CHOICE;
 109
 110 OPTIONS x509_options[] = {
 111     {"help", OPT_HELP, '-', "Display this summary"},
 112     {"inform", OPT_INFORM, 'f',
 113      "Input format - default PEM (one of DER, NET or PEM)"},
 114     {"in", OPT_IN, '<', "Input file - default stdin"},
 115     {"outform", OPT_OUTFORM, 'f',
 116      "Output format - default PEM (one of DER, NET or PEM)"},
 117     {"out", OPT_OUT, '>', "Output file - default stdout"},
 118     {"keyform", OPT_KEYFORM, 'F', "Private key format - default PEM"},
 119     {"passin", OPT_PASSIN, 's', "Private key password source"},
 120     {"serial", OPT_SERIAL, '-', "Print serial number value"},
 121     {"subject_hash", OPT_HASH, '-', "Print subject hash value"},
 122     {"issuer_hash", OPT_ISSUER_HASH, '-', "Print issuer hash value"},
 123     {"hash", OPT_HASH, '-', "Synonym for -subject_hash"},
 124     {"subject", OPT_SUBJECT, '-', "Print subject DN"},
 125     {"issuer", OPT_ISSUER, '-', "Print issuer DN"},
 126     {"email", OPT_EMAIL, '-', "Print email address(es)"},
 127     {"startdate", OPT_STARTDATE, '-', "Set notBefore field"},
 128     {"enddate", OPT_ENDDATE, '-', "Set notAfter field"},
 129     {"purpose", OPT_PURPOSE, '-', "Print out certificate purposes"},
 130     {"dates", OPT_DATES, '-', "Both Before and After dates"},
 131     {"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
 132     {"pubkey", OPT_PUBKEY, '-', "Output the public key"},
 133     {"fingerprint", OPT_FINGERPRINT, '-',
 134      "Print the certificate fingerprint"},
 135     {"alias", OPT_ALIAS, '-', "Output certificate alias"},
 136     {"noout", OPT_NOOUT, '-', "No output, just status"},
 137     {"nocert", OPT_NOCERT, '-', "No certificate output"},
 138     {"ocspid", OPT_OCSPID, '-',
 139      "Print OCSP hash values for the subject name and public key"},
 140     {"ocsp_uri", OPT_OCSP_URI, '-', "Print OCSP Responder URL(s)"},
 141     {"trustout", OPT_TRUSTOUT, '-', "Output a trusted certificate"},
 142     {"clrtrust", OPT_CLRTRUST, '-', "Clear all trusted purposes"},
 143     {"clrext", OPT_CLREXT, '-', "Clear all rejected purposes"},
 144     {"addtrust", OPT_ADDTRUST, 's', "Trust certificate for a given purpose"},
 145     {"addreject", OPT_ADDREJECT, 's',
 146      "Reject certificate for a given purpose"},
 147     {"setalias", OPT_SETALIAS, 's', "Set certificate alias"},
 148     {"days", OPT_DAYS, 'n',
 149      "How long till expiry of a signed certificate - def 30 days"},
 150     {"checkend", OPT_CHECKEND, 'M',
 151      "Check whether the cert expires in the next arg seconds"},
 152     {OPT_MORE_STR, 1, 1, "Exit 1 if so, 0 if not"},
 153     {"signkey", OPT_SIGNKEY, '<', "Self sign cert with arg"},
 154     {"x509toreq", OPT_X509TOREQ, '-',
 155      "Output a certification request object"},
 156     {"req", OPT_REQ, '-', "Input is a certificate request, sign and output"},
 157     {"CA", OPT_CA, '<', "Set the CA certificate, must be PEM format"},
 158     {"CAkey", OPT_CAKEY, 's',
 159      "The CA key, must be PEM format; if not in CAfile"},
 160     {"CAcreateserial", OPT_CACREATESERIAL, '-',
 161      "Create serial number file if it does not exist"},
 162     {"CAserial", OPT_CASERIAL, 's', "Serial file"},
 163     {"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"},
 164     {"text", OPT_TEXT, '-', "Print the certificate in text form"},
 165     {"C", OPT_C, '-', "Print out C code forms"},
 166     {"extfile", OPT_EXTFILE, '<', "File with X509V3 extensions to add"},
 167     {"extensions", OPT_EXTENSIONS, 's', "Section from config file to use"},
 168     {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
 169     {"certopt", OPT_CERTOPT, 's', "Various certificate text options"},
 170     {"checkhost", OPT_CHECKHOST, 's', "Check certificate matches host"},
 171     {"checkemail", OPT_CHECKEMAIL, 's', "Check certificate matches email"},
 172     {"checkip", OPT_CHECKIP, 's', "Check certificate matches ipaddr"},
 173     {"CAform", OPT_CAFORM, 'F', "CA format - default PEM"},
 174     {"CAkeyform", OPT_CAKEYFORM, 'F', "CA key format - default PEM"},
 175     {"sigopt", OPT_SIGOPT, 's'},
 176     {"force_pubkey", OPT_FORCE_PUBKEY, '<'},
 177     {"next_serial", OPT_NEXT_SERIAL, '-'},
 178     {"clrreject", OPT_CLRREJECT, '-'},
 179     {"badsig", OPT_BADSIG, '-'},
 180     {"", OPT_MD, '-', "Any supported digest"},
 181 #ifndef OPENSSL_NO_MD5
 182     {"subject_hash_old", OPT_SUBJECT_HASH_OLD, '-',
 183      "Print old-style (MD5) issuer hash value"},
 184     {"issuer_hash_old", OPT_ISSUER_HASH_OLD, '-',
 185      "Print old-style (MD5) subject hash value"},
 186 #endif
 187 #ifndef OPENSSL_NO_ENGINE
 188     {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
 189 #endif
 190     {NULL}
 191 };
 192
 193 int x509_main(int argc, char **argv)
 194 {
 195     ASN1_INTEGER *sno = NULL;
 196     ASN1_OBJECT *objtmp;
 197     BIO *out = NULL;
 198     CONF *extconf = NULL;
 199     EVP_PKEY *Upkey = NULL, *CApkey = NULL, *fkey = NULL;
 200     STACK_OF(ASN1_OBJECT) *trust = NULL, *reject = NULL;
 201     STACK_OF(OPENSSL_STRING) *sigopts = NULL;
 202     X509 *x = NULL, *xca = NULL;
 203     X509_REQ *req = NULL, *rq = NULL;
 204     X509_STORE *ctx = NULL;
 205     const EVP_MD *digest = NULL;
 206     char *CAkeyfile = NULL, *CAserial = NULL, *fkeyfile = NULL, *alias = NULL;
 207     char *checkhost = NULL, *checkemail = NULL, *checkip = NULL;
 208     char *extsect = NULL, *extfile = NULL, *passin = NULL, *passinarg = NULL;
 209     char *infile = NULL, *outfile = NULL, *keyfile = NULL, *CAfile = NULL;
 210     char buf[256], *prog;
 211     int x509req = 0, days = DEF_DAYS, modulus = 0, pubkey = 0, pprint = 0;
 212     int C = 0, CAformat = FORMAT_PEM, CAkeyformat = FORMAT_PEM;
 213     int fingerprint = 0, reqfile = 0, need_rand = 0, checkend = 0;
 214     int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyformat = FORMAT_PEM;
 215     int next_serial = 0, subject_hash = 0, issuer_hash = 0, ocspid = 0;
 216     int noout = 0, sign_flag = 0, CA_flag = 0, CA_createserial = 0, email = 0;
 217     int ocsp_uri = 0, trustout = 0, clrtrust = 0, clrreject = 0, aliasout = 0;
 218     int ret = 1, i, num = 0, badsig = 0, clrext = 0, nocert = 0;
 219     int text = 0, serial = 0, subject = 0, issuer = 0, startdate = 0;
 220     int enddate = 0;
 221     time_t checkoffset = 0;
 222     unsigned long nmflag = 0, certflag = 0;
 223     char nmflag_set = 0;
 224     OPTION_CHOICE o;
 225     ENGINE *e = NULL;
 226 #ifndef OPENSSL_NO_MD5
 227     int subject_hash_old = 0, issuer_hash_old = 0;
 228 #endif
 229
 230     ctx = X509_STORE_new();
 231     if (ctx == NULL)
 232         goto end;
 233     X509_STORE_set_verify_cb(ctx, callb);
 234
 235     prog = opt_init(argc, argv, x509_options);
 236     while ((o = opt_next()) != OPT_EOF) {
 237         switch (o) {
 238         case OPT_EOF:
 239         case OPT_ERR:
 240  opthelp:
 241             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 242             goto end;
 243         case OPT_HELP:
 244             opt_help(x509_options);
 245             ret = 0;
 246             goto end;
 247         case OPT_INFORM:
 248             if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
 249                 goto opthelp;
 250             break;
 251         case OPT_IN:
 252             infile = opt_arg();
 253             break;
 254         case OPT_OUTFORM:
 255             if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
 256                 goto opthelp;
 257             break;
 258         case OPT_KEYFORM:
 259             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &keyformat))
 260                 goto opthelp;
 261             break;
 262         case OPT_CAFORM:
 263             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &CAformat))
 264                 goto opthelp;
 265             break;
 266         case OPT_CAKEYFORM:
 267             if (!opt_format(opt_arg(), OPT_FMT_ANY, &CAkeyformat))
 268                 goto opthelp;
 269             break;
 270         case OPT_OUT:
 271             outfile = opt_arg();
 272             break;
 273         case OPT_REQ:
 274             reqfile = need_rand = 1;
 275             break;
 276
 277         case OPT_SIGOPT:
 278             if (!sigopts)
 279                 sigopts = sk_OPENSSL_STRING_new_null();
 280             if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
 281                 goto opthelp;
 282             break;
 283         case OPT_DAYS:
 284             days = atoi(opt_arg());
 285             break;
 286         case OPT_PASSIN:
 287             passinarg = opt_arg();
 288             break;
 289         case OPT_EXTFILE:
 290             extfile = opt_arg();
 291             break;
 292         case OPT_EXTENSIONS:
 293             extsect = opt_arg();
 294             break;
 295         case OPT_SIGNKEY:
 296             keyfile = opt_arg();
 297             sign_flag = ++num;
 298             need_rand = 1;
 299             break;
 300         case OPT_CA:
 301             CAfile = opt_arg();
 302             CA_flag = ++num;
 303             need_rand = 1;
 304             break;
 305         case OPT_CAKEY:
 306             CAkeyfile = opt_arg();
 307             break;
 308         case OPT_CASERIAL:
 309             CAserial = opt_arg();
 310             break;
 311         case OPT_SET_SERIAL:
 312             if ((sno = s2i_ASN1_INTEGER(NULL, opt_arg())) == NULL)
 313                 goto opthelp;
 314             break;
 315         case OPT_FORCE_PUBKEY:
 316             fkeyfile = opt_arg();
 317             break;
 318         case OPT_ADDTRUST:
 319             if ((objtmp = OBJ_txt2obj(opt_arg(), 0)) == NULL) {
 320                 BIO_printf(bio_err,
 321                            "%s: Invalid trust object value %s\n",
 322                            prog, opt_arg());
 323                 goto opthelp;
 324             }
 325             if (trust == NULL && (trust = sk_ASN1_OBJECT_new_null()) == NULL)
 326                 goto end;
 327             sk_ASN1_OBJECT_push(trust, objtmp);
 328             trustout = 1;
 329             break;
 330         case OPT_ADDREJECT:
 331             if ((objtmp = OBJ_txt2obj(opt_arg(), 0)) == NULL) {
 332                 BIO_printf(bio_err,
 333                            "%s: Invalid reject object value %s\n",
 334                            prog, opt_arg());
 335                 goto opthelp;
 336             }
 337             if (reject == NULL
 338                 && (reject = sk_ASN1_OBJECT_new_null()) == NULL)
 339                 goto end;
 340             sk_ASN1_OBJECT_push(reject, objtmp);
 341             trustout = 1;
 342             break;
 343         case OPT_SETALIAS:
 344             alias = opt_arg();
 345             trustout = 1;
 346             break;
 347         case OPT_CERTOPT:
 348             if (!set_cert_ex(&certflag, opt_arg()))
 349                 goto opthelp;
 350             break;
 351         case OPT_NAMEOPT:
 352             nmflag_set = 1;
 353             if (!set_name_ex(&nmflag, opt_arg()))
 354                 goto opthelp;
 355             break;
 356         case OPT_ENGINE:
 357             e = setup_engine(opt_arg(), 0);
 358             break;
 359         case OPT_C:
 360             C = ++num;
 361             break;
 362         case OPT_EMAIL:
 363             email = ++num;
 364             break;
 365         case OPT_OCSP_URI:
 366             ocsp_uri = ++num;
 367             break;
 368         case OPT_SERIAL:
 369             serial = ++num;
 370             break;
 371         case OPT_NEXT_SERIAL:
 372             next_serial = ++num;
 373             break;
 374         case OPT_MODULUS:
 375             modulus = ++num;
 376             break;
 377         case OPT_PUBKEY:
 378             pubkey = ++num;
 379             break;
 380         case OPT_X509TOREQ:
 381             x509req = ++num;
 382             break;
 383         case OPT_TEXT:
 384             text = ++num;
 385             break;
 386         case OPT_SUBJECT:
 387             subject = ++num;
 388             break;
 389         case OPT_ISSUER:
 390             issuer = ++num;
 391             break;
 392         case OPT_FINGERPRINT:
 393             fingerprint = ++num;
 394             break;
 395         case OPT_HASH:
 396             subject_hash = ++num;
 397             break;
 398         case OPT_ISSUER_HASH:
 399             issuer_hash = ++num;
 400             break;
 401         case OPT_PURPOSE:
 402             pprint = ++num;
 403             break;
 404         case OPT_STARTDATE:
 405             startdate = ++num;
 406             break;
 407         case OPT_ENDDATE:
 408             enddate = ++num;
 409             break;
 410         case OPT_NOOUT:
 411             noout = ++num;
 412             break;
 413         case OPT_NOCERT:
 414             nocert = 1;
 415             break;
 416         case OPT_TRUSTOUT:
 417             trustout = 1;
 418             break;
 419         case OPT_CLRTRUST:
 420             clrtrust = ++num;
 421             break;
 422         case OPT_CLRREJECT:
 423             clrreject = ++num;
 424             break;
 425         case OPT_ALIAS:
 426             aliasout = ++num;
 427             break;
 428         case OPT_CACREATESERIAL:
 429             CA_createserial = ++num;
 430             break;
 431         case OPT_CLREXT:
 432             clrext = 1;
 433             break;
 434         case OPT_OCSPID:
 435             ocspid = ++num;
 436             break;
 437         case OPT_BADSIG:
 438             badsig = 1;
 439             break;
 440 #ifndef OPENSSL_NO_MD5
 441         case OPT_SUBJECT_HASH_OLD:
 442             subject_hash_old = ++num;
 443             break;
 444         case OPT_ISSUER_HASH_OLD:
 445             issuer_hash_old = ++num;
 446             break;
 447 #else
 448         case OPT_SUBJECT_HASH_OLD:
 449         case OPT_ISSUER_HASH_OLD:
 450             break;
 451 #endif
 452         case OPT_DATES:
 453             startdate = ++num;
 454             enddate = ++num;
 455             break;
 456         case OPT_CHECKEND:
 457             checkend = 1;
 458             {
 459                 intmax_t temp = 0;
 460                 if (!opt_imax(opt_arg(), &temp))
 461                     goto opthelp;
 462                 checkoffset = (time_t)temp;
 463                 if ((intmax_t)checkoffset != temp) {
 464                     BIO_printf(bio_err, "%s: checkend time out of range %s\n",
 465                                prog, opt_arg());
 466                     goto opthelp;
 467                 }
 468             }
 469             break;
 470         case OPT_CHECKHOST:
 471             checkhost = opt_arg();
 472             break;
 473         case OPT_CHECKEMAIL:
 474             checkemail = opt_arg();
 475             break;
 476         case OPT_CHECKIP:
 477             checkip = opt_arg();
 478             break;
 479         case OPT_MD:
 480             if (!opt_md(opt_unknown(), &digest))
 481                 goto opthelp;
 482         }
 483     }
 484     argc = opt_num_rest();
 485     argv = opt_rest();
 486     if (argc != 0) {
 487         BIO_printf(bio_err, "%s: Unknown parameter %s\n", prog, argv[0]);
 488         goto opthelp;
 489     }
 490
 491     if (!nmflag_set)
 492         nmflag = XN_FLAG_ONELINE;
 493
 494     out = bio_open_default(outfile, 'w', outformat);
 495     if (out == NULL)
 496         goto end;
 497
 498     if (need_rand)
 499         app_RAND_load_file(NULL, 0);
 500
 501     if (!app_passwd(passinarg, NULL, &passin, NULL)) {
 502         BIO_printf(bio_err, "Error getting password\n");
 503         goto end;
 504     }
 505
 506     if (!X509_STORE_set_default_paths(ctx)) {
 507         ERR_print_errors(bio_err);
 508         goto end;
 509     }
 510
 511     if (fkeyfile) {
 512         fkey = load_pubkey(fkeyfile, keyformat, 0, NULL, e, "Forced key");
 513         if (fkey == NULL)
 514             goto end;
 515     }
 516
 517     if ((CAkeyfile == NULL) && (CA_flag) && (CAformat == FORMAT_PEM)) {
 518         CAkeyfile = CAfile;
 519     } else if ((CA_flag) && (CAkeyfile == NULL)) {
 520         BIO_printf(bio_err,
 521                    "need to specify a CAkey if using the CA command\n");
 522         goto end;
 523     }
 524
 525     if (extfile) {
 526         X509V3_CTX ctx2;
 527         if ((extconf = app_load_config(extfile)) == NULL)
 528             goto end;
 529         if (!extsect) {
 530             extsect = NCONF_get_string(extconf, "default", "extensions");
 531             if (!extsect) {
 532                 ERR_clear_error();
 533                 extsect = "default";
 534             }
 535         }
 536         X509V3_set_ctx_test(&ctx2);
 537         X509V3_set_nconf(&ctx2, extconf);
 538         if (!X509V3_EXT_add_nconf(extconf, &ctx2, extsect, NULL)) {
 539             BIO_printf(bio_err,
 540                        "Error Loading extension section %s\n", extsect);
 541             ERR_print_errors(bio_err);
 542             goto end;
 543         }
 544     }
 545
 546     if (reqfile) {
 547         EVP_PKEY *pkey;
 548         BIO *in;
 549
 550         if (!sign_flag && !CA_flag) {
 551             BIO_printf(bio_err, "We need a private key to sign with\n");
 552             goto end;
 553         }
 554         in = bio_open_default(infile, 'r', informat);
 555         if (in == NULL)
 556             goto end;
 557         req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
 558         BIO_free(in);
 559
 560         if (req == NULL) {
 561             ERR_print_errors(bio_err);
 562             goto end;
 563         }
 564
 565         if ((pkey = X509_REQ_get0_pubkey(req)) == NULL) {
 566             BIO_printf(bio_err, "error unpacking public key\n");
 567             goto end;
 568         }
 569         i = X509_REQ_verify(req, pkey);
 570         if (i < 0) {
 571             BIO_printf(bio_err, "Signature verification error\n");
 572             ERR_print_errors(bio_err);
 573             goto end;
 574         }
 575         if (i == 0) {
 576             BIO_printf(bio_err,
 577                        "Signature did not match the certificate request\n");
 578             goto end;
 579         } else
 580             BIO_printf(bio_err, "Signature ok\n");
 581
 582         print_name(bio_err, "subject=", X509_REQ_get_subject_name(req),
 583                    nmflag);
 584
 585         if ((x = X509_new()) == NULL)
 586             goto end;
 587
 588         if (sno == NULL) {
 589             sno = ASN1_INTEGER_new();
 590             if (sno == NULL || !rand_serial(NULL, sno))
 591                 goto end;
 592             if (!X509_set_serialNumber(x, sno))
 593                 goto end;
 594             ASN1_INTEGER_free(sno);
 595             sno = NULL;
 596         } else if (!X509_set_serialNumber(x, sno))
 597             goto end;
 598
 599         if (!X509_set_issuer_name(x, X509_REQ_get_subject_name(req)))
 600             goto end;
 601         if (!X509_set_subject_name(x, X509_REQ_get_subject_name(req)))
 602             goto end;
 603
 604         X509_gmtime_adj(X509_get_notBefore(x), 0);
 605         X509_time_adj_ex(X509_get_notAfter(x), days, 0, NULL);
 606         if (fkey)
 607             X509_set_pubkey(x, fkey);
 608         else {
 609             pkey = X509_REQ_get0_pubkey(req);
 610             X509_set_pubkey(x, pkey);
 611         }
 612     } else
 613         x = load_cert(infile, informat, "Certificate");
 614
 615     if (x == NULL)
 616         goto end;
 617     if (CA_flag) {
 618         xca = load_cert(CAfile, CAformat, "CA Certificate");
 619         if (xca == NULL)
 620             goto end;
 621     }
 622
 623     if (!noout || text || next_serial) {
 624         OBJ_create("2.99999.3", "SET.ex3", "SET x509v3 extension 3");
 625
 626     }
 627
 628     if (alias)
 629         X509_alias_set1(x, (unsigned char *)alias, -1);
 630
 631     if (clrtrust)
 632         X509_trust_clear(x);
 633     if (clrreject)
 634         X509_reject_clear(x);
 635
 636     if (trust) {
 637         for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
 638             objtmp = sk_ASN1_OBJECT_value(trust, i);
 639             X509_add1_trust_object(x, objtmp);
 640         }
 641     }
 642
 643     if (reject) {
 644         for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
 645             objtmp = sk_ASN1_OBJECT_value(reject, i);
 646             X509_add1_reject_object(x, objtmp);
 647         }
 648     }
 649
 650     if (num) {
 651         for (i = 1; i <= num; i++) {
 652             if (issuer == i) {
 653                 print_name(out, "issuer= ", X509_get_issuer_name(x), nmflag);
 654             } else if (subject == i) {
 655                 print_name(out, "subject= ",
 656                            X509_get_subject_name(x), nmflag);
 657             } else if (serial == i) {
 658                 BIO_printf(out, "serial=");
 659                 i2a_ASN1_INTEGER(out, X509_get_serialNumber(x));
 660                 BIO_printf(out, "\n");
 661             } else if (next_serial == i) {
 662                 BIGNUM *bnser;
 663                 ASN1_INTEGER *ser;
 664                 ser = X509_get_serialNumber(x);
 665                 bnser = ASN1_INTEGER_to_BN(ser, NULL);
 666                 if (!bnser)
 667                     goto end;
 668                 if (!BN_add_word(bnser, 1))
 669                     goto end;
 670                 ser = BN_to_ASN1_INTEGER(bnser, NULL);
 671                 if (!ser)
 672                     goto end;
 673                 BN_free(bnser);
 674                 i2a_ASN1_INTEGER(out, ser);
 675                 ASN1_INTEGER_free(ser);
 676                 BIO_puts(out, "\n");
 677             } else if ((email == i) || (ocsp_uri == i)) {
 678                 int j;
 679                 STACK_OF(OPENSSL_STRING) *emlst;
 680                 if (email == i)
 681                     emlst = X509_get1_email(x);
 682                 else
 683                     emlst = X509_get1_ocsp(x);
 684                 for (j = 0; j < sk_OPENSSL_STRING_num(emlst); j++)
 685                     BIO_printf(out, "%s\n",
 686                                sk_OPENSSL_STRING_value(emlst, j));
 687                 X509_email_free(emlst);
 688             } else if (aliasout == i) {
 689                 unsigned char *alstr;
 690                 alstr = X509_alias_get0(x, NULL);
 691                 if (alstr)
 692                     BIO_printf(out, "%s\n", alstr);
 693                 else
 694                     BIO_puts(out, "<No Alias>\n");
 695             } else if (subject_hash == i) {
 696                 BIO_printf(out, "%08lx\n", X509_subject_name_hash(x));
 697             }
 698 #ifndef OPENSSL_NO_MD5
 699             else if (subject_hash_old == i) {
 700                 BIO_printf(out, "%08lx\n", X509_subject_name_hash_old(x));
 701             }
 702 #endif
 703             else if (issuer_hash == i) {
 704                 BIO_printf(out, "%08lx\n", X509_issuer_name_hash(x));
 705             }
 706 #ifndef OPENSSL_NO_MD5
 707             else if (issuer_hash_old == i) {
 708                 BIO_printf(out, "%08lx\n", X509_issuer_name_hash_old(x));
 709             }
 710 #endif
 711             else if (pprint == i) {
 712                 X509_PURPOSE *ptmp;
 713                 int j;
 714                 BIO_printf(out, "Certificate purposes:\n");
 715                 for (j = 0; j < X509_PURPOSE_get_count(); j++) {
 716                     ptmp = X509_PURPOSE_get0(j);
 717                     purpose_print(out, x, ptmp);
 718                 }
 719             } else if (modulus == i) {
 720                 EVP_PKEY *pkey;
 721
 722                 pkey = X509_get0_pubkey(x);
 723                 if (pkey == NULL) {
 724                     BIO_printf(bio_err, "Modulus=unavailable\n");
 725                     ERR_print_errors(bio_err);
 726                     goto end;
 727                 }
 728                 BIO_printf(out, "Modulus=");
 729 #ifndef OPENSSL_NO_RSA
 730                 if (EVP_PKEY_id(pkey) == EVP_PKEY_RSA) {
 731                     BIGNUM *n;
 732                     RSA_get0_key(EVP_PKEY_get0_RSA(pkey), &n, NULL, NULL);
 733                     BN_print(out, n);
 734                 } else
 735 #endif
 736 #ifndef OPENSSL_NO_DSA
 737                 if (EVP_PKEY_id(pkey) == EVP_PKEY_DSA) {
 738                     BIGNUM *dsapub = NULL;
 739                     DSA_get0_key(EVP_PKEY_get0_DSA(pkey), &dsapub, NULL);
 740                     BN_print(out, dsapub);
 741                 } else
 742 #endif
 743                 {
 744                     BIO_printf(out, "Wrong Algorithm type");
 745                 }
 746                 BIO_printf(out, "\n");
 747             } else if (pubkey == i) {
 748                 EVP_PKEY *pkey;
 749
 750                 pkey = X509_get0_pubkey(x);
 751                 if (pkey == NULL) {
 752                     BIO_printf(bio_err, "Error getting public key\n");
 753                     ERR_print_errors(bio_err);
 754                     goto end;
 755                 }
 756                 PEM_write_bio_PUBKEY(out, pkey);
 757             } else if (C == i) {
 758                 unsigned char *d;
 759                 char *m;
 760                 int len;
 761
 762                 X509_NAME_oneline(X509_get_subject_name(x), buf, sizeof buf);
 763                 BIO_printf(out, "/*\n"
 764                                 " * Subject: %s\n", buf);
 765
 766                 m = X509_NAME_oneline(X509_get_issuer_name(x), buf, sizeof buf);
 767                 BIO_printf(out, " * Issuer:  %s\n"
 768                                 " */\n", buf);
 769
 770                 len = i2d_X509(x, NULL);
 771                 m = app_malloc(len, "x509 name buffer");
 772                 d = (unsigned char *)m;
 773                 len = i2d_X509_NAME(X509_get_subject_name(x), &d);
 774                 print_array(out, "the_subject_name", len, (unsigned char *)m);
 775                 d = (unsigned char *)m;
 776                 len = i2d_X509_PUBKEY(X509_get_X509_PUBKEY(x), &d);
 777                 print_array(out, "the_public_key", len, (unsigned char *)m);
 778                 d = (unsigned char *)m;
 779                 len = i2d_X509(x, &d);
 780                 print_array(out, "the_certificate", len, (unsigned char *)m);
 781                 OPENSSL_free(m);
 782             } else if (text == i) {
 783                 X509_print_ex(out, x, nmflag, certflag);
 784             } else if (startdate == i) {
 785                 BIO_puts(out, "notBefore=");
 786                 ASN1_TIME_print(out, X509_get_notBefore(x));
 787                 BIO_puts(out, "\n");
 788             } else if (enddate == i) {
 789                 BIO_puts(out, "notAfter=");
 790                 ASN1_TIME_print(out, X509_get_notAfter(x));
 791                 BIO_puts(out, "\n");
 792             } else if (fingerprint == i) {
 793                 int j;
 794                 unsigned int n;
 795                 unsigned char md[EVP_MAX_MD_SIZE];
 796                 const EVP_MD *fdig = digest;
 797
 798                 if (!fdig)
 799                     fdig = EVP_sha1();
 800
 801                 if (!X509_digest(x, fdig, md, &n)) {
 802                     BIO_printf(bio_err, "out of memory\n");
 803                     goto end;
 804                 }
 805                 BIO_printf(out, "%s Fingerprint=",
 806                            OBJ_nid2sn(EVP_MD_type(fdig)));
 807                 for (j = 0; j < (int)n; j++) {
 808                     BIO_printf(out, "%02X%c", md[j], (j + 1 == (int)n)
 809                                ? '\n' : ':');
 810                 }
 811             }
 812
 813             /* should be in the library */
 814             else if ((sign_flag == i) && (x509req == 0)) {
 815                 BIO_printf(bio_err, "Getting Private key\n");
 816                 if (Upkey == NULL) {
 817                     Upkey = load_key(keyfile, keyformat, 0,
 818                                      passin, e, "Private key");
 819                     if (Upkey == NULL)
 820                         goto end;
 821                 }
 822
 823                 assert(need_rand);
 824                 if (!sign(x, Upkey, days, clrext, digest, extconf, extsect))
 825                     goto end;
 826             } else if (CA_flag == i) {
 827                 BIO_printf(bio_err, "Getting CA Private Key\n");
 828                 if (CAkeyfile != NULL) {
 829                     CApkey = load_key(CAkeyfile, CAkeyformat,
 830                                       0, passin, e, "CA Private Key");
 831                     if (CApkey == NULL)
 832                         goto end;
 833                 }
 834
 835                 assert(need_rand);
 836                 if (!x509_certify(ctx, CAfile, digest, x, xca,
 837                                   CApkey, sigopts,
 838                                   CAserial, CA_createserial, days, clrext,
 839                                   extconf, extsect, sno, reqfile))
 840                     goto end;
 841             } else if (x509req == i) {
 842                 EVP_PKEY *pk;
 843
 844                 BIO_printf(bio_err, "Getting request Private Key\n");
 845                 if (keyfile == NULL) {
 846                     BIO_printf(bio_err, "no request key file specified\n");
 847                     goto end;
 848                 } else {
 849                     pk = load_key(keyfile, keyformat, 0,
 850                                   passin, e, "request key");
 851                     if (pk == NULL)
 852                         goto end;
 853                 }
 854
 855                 BIO_printf(bio_err, "Generating certificate request\n");
 856
 857                 rq = X509_to_X509_REQ(x, pk, digest);
 858                 EVP_PKEY_free(pk);
 859                 if (rq == NULL) {
 860                     ERR_print_errors(bio_err);
 861                     goto end;
 862                 }
 863                 if (!noout) {
 864                     X509_REQ_print(out, rq);
 865                     PEM_write_bio_X509_REQ(out, rq);
 866                 }
 867                 noout = 1;
 868             } else if (ocspid == i) {
 869                 X509_ocspid_print(out, x);
 870             }
 871         }
 872     }
 873
 874     if (checkend) {
 875         time_t tcheck = time(NULL) + checkoffset;
 876
 877         if (X509_cmp_time(X509_get_notAfter(x), &tcheck) < 0) {
 878             BIO_printf(out, "Certificate will expire\n");
 879             ret = 1;
 880         } else {
 881             BIO_printf(out, "Certificate will not expire\n");
 882             ret = 0;
 883         }
 884         goto end;
 885     }
 886
 887     print_cert_checks(out, x, checkhost, checkemail, checkip);
 888
 889     if (noout || nocert) {
 890         ret = 0;
 891         goto end;
 892     }
 893
 894     if (badsig) {
 895         ASN1_BIT_STRING *signature;
 896         unsigned char *s;
 897         X509_get0_signature(&signature, NULL, x);
 898         s = ASN1_STRING_data(signature);
 899         s[ASN1_STRING_length(signature) - 1] ^= 0x1;
 900     }
 901
 902     if (outformat == FORMAT_ASN1)
 903         i = i2d_X509_bio(out, x);
 904     else if (outformat == FORMAT_PEM) {
 905         if (trustout)
 906             i = PEM_write_bio_X509_AUX(out, x);
 907         else
 908             i = PEM_write_bio_X509(out, x);
 909     } else {
 910         BIO_printf(bio_err, "bad output format specified for outfile\n");
 911         goto end;
 912     }
 913     if (!i) {
 914         BIO_printf(bio_err, "unable to write certificate\n");
 915         ERR_print_errors(bio_err);
 916         goto end;
 917     }
 918     ret = 0;
 919  end:
 920     if (need_rand)
 921         app_RAND_write_file(NULL);
 922     NCONF_free(extconf);
 923     BIO_free_all(out);
 924     X509_STORE_free(ctx);
 925     X509_REQ_free(req);
 926     X509_free(x);
 927     X509_free(xca);
 928     EVP_PKEY_free(Upkey);
 929     EVP_PKEY_free(CApkey);
 930     EVP_PKEY_free(fkey);
 931     sk_OPENSSL_STRING_free(sigopts);
 932     X509_REQ_free(rq);
 933     ASN1_INTEGER_free(sno);
 934     sk_ASN1_OBJECT_pop_free(trust, ASN1_OBJECT_free);
 935     sk_ASN1_OBJECT_pop_free(reject, ASN1_OBJECT_free);
 936     OPENSSL_free(passin);
 937     return (ret);
 938 }
 939
 940 static ASN1_INTEGER *x509_load_serial(char *CAfile, char *serialfile,
 941                                       int create)
 942 {
 943     char *buf = NULL, *p;
 944     ASN1_INTEGER *bs = NULL;
 945     BIGNUM *serial = NULL;
 946     size_t len;
 947
 948     len = ((serialfile == NULL)
 949            ? (strlen(CAfile) + strlen(POSTFIX) + 1)
 950            : (strlen(serialfile))) + 1;
 951     buf = app_malloc(len, "serial# buffer");
 952     if (serialfile == NULL) {
 953         OPENSSL_strlcpy(buf, CAfile, len);
 954         for (p = buf; *p; p++)
 955             if (*p == '.') {
 956                 *p = '\0';
 957                 break;
 958             }
 959         OPENSSL_strlcat(buf, POSTFIX, len);
 960     } else
 961         OPENSSL_strlcpy(buf, serialfile, len);
 962
 963     serial = load_serial(buf, create, NULL);
 964     if (serial == NULL)
 965         goto end;
 966
 967     if (!BN_add_word(serial, 1)) {
 968         BIO_printf(bio_err, "add_word failure\n");
 969         goto end;
 970     }
 971
 972     if (!save_serial(buf, NULL, serial, &bs))
 973         goto end;
 974
 975  end:
 976     OPENSSL_free(buf);
 977     BN_free(serial);
 978     return bs;
 979 }
 980
 981 static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
 982                         X509 *x, X509 *xca, EVP_PKEY *pkey,
 983                         STACK_OF(OPENSSL_STRING) *sigopts,
 984                         char *serialfile, int create,
 985                         int days, int clrext, CONF *conf, char *section,
 986                         ASN1_INTEGER *sno, int reqfile)
 987 {
 988     int ret = 0;
 989     ASN1_INTEGER *bs = NULL;
 990     X509_STORE_CTX *xsc = NULL;
 991     EVP_PKEY *upkey;
 992
 993     upkey = X509_get0_pubkey(xca);
 994     EVP_PKEY_copy_parameters(upkey, pkey);
 995
 996     xsc = X509_STORE_CTX_new();
 997     if (xsc == NULL || !X509_STORE_CTX_init(xsc, ctx, x, NULL)) {
 998         BIO_printf(bio_err, "Error initialising X509 store\n");
 999         goto end;
1000     }
1001     if (sno)
1002         bs = sno;
1003     else if ((bs = x509_load_serial(CAfile, serialfile, create)) == NULL)
1004         goto end;
1005
1006     /*
1007      * NOTE: this certificate can/should be self signed, unless it was a
1008      * certificate request in which case it is not.
1009      */
1010     X509_STORE_CTX_set_cert(xsc, x);
1011     X509_STORE_CTX_set_flags(xsc, X509_V_FLAG_CHECK_SS_SIGNATURE);
1012     if (!reqfile && X509_verify_cert(xsc) <= 0)
1013         goto end;
1014
1015     if (!X509_check_private_key(xca, pkey)) {
1016         BIO_printf(bio_err,
1017                    "CA certificate and CA private key do not match\n");
1018         goto end;
1019     }
1020
1021     if (!X509_set_issuer_name(x, X509_get_subject_name(xca)))
1022         goto end;
1023     if (!X509_set_serialNumber(x, bs))
1024         goto end;
1025
1026     if (X509_gmtime_adj(X509_get_notBefore(x), 0L) == NULL)
1027         goto end;
1028
1029     /* hardwired expired */
1030     if (X509_time_adj_ex(X509_get_notAfter(x), days, 0, NULL) == NULL)
1031         goto end;
1032
1033     if (clrext) {
1034         while (X509_get_ext_count(x) > 0)
1035             X509_delete_ext(x, 0);
1036     }
1037
1038     if (conf) {
1039         X509V3_CTX ctx2;
1040         X509_set_version(x, 2); /* version 3 certificate */
1041         X509V3_set_ctx(&ctx2, xca, x, NULL, NULL, 0);
1042         X509V3_set_nconf(&ctx2, conf);
1043         if (!X509V3_EXT_add_nconf(conf, &ctx2, section, x))
1044             goto end;
1045     }
1046
1047     if (!do_X509_sign(x, pkey, digest, sigopts))
1048         goto end;
1049     ret = 1;
1050  end:
1051     X509_STORE_CTX_free(xsc);
1052     if (!ret)
1053         ERR_print_errors(bio_err);
1054     if (!sno)
1055         ASN1_INTEGER_free(bs);
1056     return ret;
1057 }
1058
1059 static int callb(int ok, X509_STORE_CTX *ctx)
1060 {
1061     int err;
1062     X509 *err_cert;
1063
1064     /*
1065      * it is ok to use a self signed certificate This case will catch both
1066      * the initial ok == 0 and the final ok == 1 calls to this function
1067      */
1068     err = X509_STORE_CTX_get_error(ctx);
1069     if (err == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
1070         return 1;
1071
1072     /*
1073      * BAD we should have gotten an error.  Normally if everything worked
1074      * X509_STORE_CTX_get_error(ctx) will still be set to
1075      * DEPTH_ZERO_SELF_....
1076      */
1077     if (ok) {
1078         BIO_printf(bio_err,
1079                    "error with certificate to be certified - should be self signed\n");
1080         return 0;
1081     } else {
1082         err_cert = X509_STORE_CTX_get_current_cert(ctx);
1083         print_name(bio_err, NULL, X509_get_subject_name(err_cert), 0);
1084         BIO_printf(bio_err,
1085                    "error with certificate - error %d at depth %d\n%s\n", err,
1086                    X509_STORE_CTX_get_error_depth(ctx),
1087                    X509_verify_cert_error_string(err));
1088         return 1;
1089     }
1090 }
1091
1092 /* self sign */
1093 static int sign(X509 *x, EVP_PKEY *pkey, int days, int clrext,
1094                 const EVP_MD *digest, CONF *conf, char *section)
1095 {
1096
1097     if (!X509_set_issuer_name(x, X509_get_subject_name(x)))
1098         goto err;
1099     if (X509_gmtime_adj(X509_get_notBefore(x), 0) == NULL)
1100         goto err;
1101
1102     if (X509_time_adj_ex(X509_get_notAfter(x), days, 0, NULL) == NULL)
1103         goto err;
1104
1105     if (!X509_set_pubkey(x, pkey))
1106         goto err;
1107     if (clrext) {
1108         while (X509_get_ext_count(x) > 0)
1109             X509_delete_ext(x, 0);
1110     }
1111     if (conf) {
1112         X509V3_CTX ctx;
1113         X509_set_version(x, 2); /* version 3 certificate */
1114         X509V3_set_ctx(&ctx, x, x, NULL, NULL, 0);
1115         X509V3_set_nconf(&ctx, conf);
1116         if (!X509V3_EXT_add_nconf(conf, &ctx, section, x))
1117             goto err;
1118     }
1119     if (!X509_sign(x, pkey, digest))
1120         goto err;
1121     return 1;
1122  err:
1123     ERR_print_errors(bio_err);
1124     return 0;
1125 }
1126
1127 static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt)
1128 {
1129     int id, i, idret;
1130     char *pname;
1131     id = X509_PURPOSE_get_id(pt);
1132     pname = X509_PURPOSE_get0_name(pt);
1133     for (i = 0; i < 2; i++) {
1134         idret = X509_check_purpose(cert, id, i);
1135         BIO_printf(bio, "%s%s : ", pname, i ? " CA" : "");
1136         if (idret == 1)
1137             BIO_printf(bio, "Yes\n");
1138         else if (idret == 0)
1139             BIO_printf(bio, "No\n");
1140         else
1141             BIO_printf(bio, "Yes (WARNING code=%d)\n", idret);
1142     }
1143     return 1;
1144 }