apps/x509.c

   1 /*
   2  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include "apps.h"
  14 #include <openssl/bio.h>
  15 #include <openssl/asn1.h>
  16 #include <openssl/err.h>
  17 #include <openssl/bn.h>
  18 #include <openssl/evp.h>
  19 #include <openssl/x509.h>
  20 #include <openssl/x509v3.h>
  21 #include <openssl/objects.h>
  22 #include <openssl/pem.h>
  23 #ifndef OPENSSL_NO_RSA
  24 # include <openssl/rsa.h>
  25 #endif
  26 #ifndef OPENSSL_NO_DSA
  27 # include <openssl/dsa.h>
  28 #endif
  29
  30 #undef POSTFIX
  31 #define POSTFIX ".srl"
  32 #define DEF_DAYS        30
  33
  34 static int callb(int ok, X509_STORE_CTX *ctx);
  35 static int sign(X509 *x, EVP_PKEY *pkey, int days, int clrext,
  36                 const EVP_MD *digest, CONF *conf, char *section);
  37 static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
  38                         X509 *x, X509 *xca, EVP_PKEY *pkey,
  39                         STACK_OF(OPENSSL_STRING) *sigopts, char *serial,
  40                         int create, int days, int clrext, CONF *conf,
  41                         char *section, ASN1_INTEGER *sno, int reqfile);
  42 static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt);
  43
  44 typedef enum OPTION_choice {
  45     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
  46     OPT_INFORM, OPT_OUTFORM, OPT_KEYFORM, OPT_REQ, OPT_CAFORM,
  47     OPT_CAKEYFORM, OPT_SIGOPT, OPT_DAYS, OPT_PASSIN, OPT_EXTFILE,
  48     OPT_EXTENSIONS, OPT_IN, OPT_OUT, OPT_SIGNKEY, OPT_CA,
  49     OPT_CAKEY, OPT_CASERIAL, OPT_SET_SERIAL, OPT_FORCE_PUBKEY,
  50     OPT_ADDTRUST, OPT_ADDREJECT, OPT_SETALIAS, OPT_CERTOPT, OPT_NAMEOPT,
  51     OPT_C, OPT_EMAIL, OPT_OCSP_URI, OPT_SERIAL, OPT_NEXT_SERIAL,
  52     OPT_MODULUS, OPT_PUBKEY, OPT_X509TOREQ, OPT_TEXT, OPT_HASH,
  53     OPT_ISSUER_HASH, OPT_SUBJECT, OPT_ISSUER, OPT_FINGERPRINT, OPT_DATES,
  54     OPT_PURPOSE, OPT_STARTDATE, OPT_ENDDATE, OPT_CHECKEND, OPT_CHECKHOST,
  55     OPT_CHECKEMAIL, OPT_CHECKIP, OPT_NOOUT, OPT_TRUSTOUT, OPT_CLRTRUST,
  56     OPT_CLRREJECT, OPT_ALIAS, OPT_CACREATESERIAL, OPT_CLREXT, OPT_OCSPID,
  57     OPT_SUBJECT_HASH_OLD,
  58     OPT_ISSUER_HASH_OLD,
  59     OPT_BADSIG, OPT_MD, OPT_ENGINE, OPT_NOCERT
  60 } OPTION_CHOICE;
  61
  62 OPTIONS x509_options[] = {
  63     {"help", OPT_HELP, '-', "Display this summary"},
  64     {"inform", OPT_INFORM, 'f',
  65      "Input format - default PEM (one of DER, NET or PEM)"},
  66     {"in", OPT_IN, '<', "Input file - default stdin"},
  67     {"outform", OPT_OUTFORM, 'f',
  68      "Output format - default PEM (one of DER, NET or PEM)"},
  69     {"out", OPT_OUT, '>', "Output file - default stdout"},
  70     {"keyform", OPT_KEYFORM, 'F', "Private key format - default PEM"},
  71     {"passin", OPT_PASSIN, 's', "Private key password/pass-phrase source"},
  72     {"serial", OPT_SERIAL, '-', "Print serial number value"},
  73     {"subject_hash", OPT_HASH, '-', "Print subject hash value"},
  74     {"issuer_hash", OPT_ISSUER_HASH, '-', "Print issuer hash value"},
  75     {"hash", OPT_HASH, '-', "Synonym for -subject_hash"},
  76     {"subject", OPT_SUBJECT, '-', "Print subject DN"},
  77     {"issuer", OPT_ISSUER, '-', "Print issuer DN"},
  78     {"email", OPT_EMAIL, '-', "Print email address(es)"},
  79     {"startdate", OPT_STARTDATE, '-', "Set notBefore field"},
  80     {"enddate", OPT_ENDDATE, '-', "Set notAfter field"},
  81     {"purpose", OPT_PURPOSE, '-', "Print out certificate purposes"},
  82     {"dates", OPT_DATES, '-', "Both Before and After dates"},
  83     {"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
  84     {"pubkey", OPT_PUBKEY, '-', "Output the public key"},
  85     {"fingerprint", OPT_FINGERPRINT, '-',
  86      "Print the certificate fingerprint"},
  87     {"alias", OPT_ALIAS, '-', "Output certificate alias"},
  88     {"noout", OPT_NOOUT, '-', "No output, just status"},
  89     {"nocert", OPT_NOCERT, '-', "No certificate output"},
  90     {"ocspid", OPT_OCSPID, '-',
  91      "Print OCSP hash values for the subject name and public key"},
  92     {"ocsp_uri", OPT_OCSP_URI, '-', "Print OCSP Responder URL(s)"},
  93     {"trustout", OPT_TRUSTOUT, '-', "Output a trusted certificate"},
  94     {"clrtrust", OPT_CLRTRUST, '-', "Clear all trusted purposes"},
  95     {"clrext", OPT_CLREXT, '-', "Clear all rejected purposes"},
  96     {"addtrust", OPT_ADDTRUST, 's', "Trust certificate for a given purpose"},
  97     {"addreject", OPT_ADDREJECT, 's',
  98      "Reject certificate for a given purpose"},
  99     {"setalias", OPT_SETALIAS, 's', "Set certificate alias"},
 100     {"days", OPT_DAYS, 'n',
 101      "How long till expiry of a signed certificate - def 30 days"},
 102     {"checkend", OPT_CHECKEND, 'M',
 103      "Check whether the cert expires in the next arg seconds"},
 104     {OPT_MORE_STR, 1, 1, "Exit 1 if so, 0 if not"},
 105     {"signkey", OPT_SIGNKEY, '<', "Self sign cert with arg"},
 106     {"x509toreq", OPT_X509TOREQ, '-',
 107      "Output a certification request object"},
 108     {"req", OPT_REQ, '-', "Input is a certificate request, sign and output"},
 109     {"CA", OPT_CA, '<', "Set the CA certificate, must be PEM format"},
 110     {"CAkey", OPT_CAKEY, 's',
 111      "The CA key, must be PEM format; if not in CAfile"},
 112     {"CAcreateserial", OPT_CACREATESERIAL, '-',
 113      "Create serial number file if it does not exist"},
 114     {"CAserial", OPT_CASERIAL, 's', "Serial file"},
 115     {"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"},
 116     {"text", OPT_TEXT, '-', "Print the certificate in text form"},
 117     {"C", OPT_C, '-', "Print out C code forms"},
 118     {"extfile", OPT_EXTFILE, '<', "File with X509V3 extensions to add"},
 119     {"extensions", OPT_EXTENSIONS, 's', "Section from config file to use"},
 120     {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
 121     {"certopt", OPT_CERTOPT, 's', "Various certificate text options"},
 122     {"checkhost", OPT_CHECKHOST, 's', "Check certificate matches host"},
 123     {"checkemail", OPT_CHECKEMAIL, 's', "Check certificate matches email"},
 124     {"checkip", OPT_CHECKIP, 's', "Check certificate matches ipaddr"},
 125     {"CAform", OPT_CAFORM, 'F', "CA format - default PEM"},
 126     {"CAkeyform", OPT_CAKEYFORM, 'F', "CA key format - default PEM"},
 127     {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"},
 128     {"force_pubkey", OPT_FORCE_PUBKEY, '<'},
 129     {"next_serial", OPT_NEXT_SERIAL, '-'},
 130     {"clrreject", OPT_CLRREJECT, '-'},
 131     {"badsig", OPT_BADSIG, '-', "Corrupt last byte of certificate signature (for test)"},
 132     {"", OPT_MD, '-', "Any supported digest"},
 133 #ifndef OPENSSL_NO_MD5
 134     {"subject_hash_old", OPT_SUBJECT_HASH_OLD, '-',
 135      "Print old-style (MD5) issuer hash value"},
 136     {"issuer_hash_old", OPT_ISSUER_HASH_OLD, '-',
 137      "Print old-style (MD5) subject hash value"},
 138 #endif
 139 #ifndef OPENSSL_NO_ENGINE
 140     {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
 141 #endif
 142     {NULL}
 143 };
 144
 145 int x509_main(int argc, char **argv)
 146 {
 147     ASN1_INTEGER *sno = NULL;
 148     ASN1_OBJECT *objtmp;
 149     BIO *out = NULL;
 150     CONF *extconf = NULL;
 151     EVP_PKEY *Upkey = NULL, *CApkey = NULL, *fkey = NULL;
 152     STACK_OF(ASN1_OBJECT) *trust = NULL, *reject = NULL;
 153     STACK_OF(OPENSSL_STRING) *sigopts = NULL;
 154     X509 *x = NULL, *xca = NULL;
 155     X509_REQ *req = NULL, *rq = NULL;
 156     X509_STORE *ctx = NULL;
 157     const EVP_MD *digest = NULL;
 158     char *CAkeyfile = NULL, *CAserial = NULL, *fkeyfile = NULL, *alias = NULL;
 159     char *checkhost = NULL, *checkemail = NULL, *checkip = NULL;
 160     char *extsect = NULL, *extfile = NULL, *passin = NULL, *passinarg = NULL;
 161     char *infile = NULL, *outfile = NULL, *keyfile = NULL, *CAfile = NULL;
 162     char buf[256], *prog;
 163     int x509req = 0, days = DEF_DAYS, modulus = 0, pubkey = 0, pprint = 0;
 164     int C = 0, CAformat = FORMAT_PEM, CAkeyformat = FORMAT_PEM;
 165     int fingerprint = 0, reqfile = 0, need_rand = 0, checkend = 0;
 166     int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyformat = FORMAT_PEM;
 167     int next_serial = 0, subject_hash = 0, issuer_hash = 0, ocspid = 0;
 168     int noout = 0, sign_flag = 0, CA_flag = 0, CA_createserial = 0, email = 0;
 169     int ocsp_uri = 0, trustout = 0, clrtrust = 0, clrreject = 0, aliasout = 0;
 170     int ret = 1, i, num = 0, badsig = 0, clrext = 0, nocert = 0;
 171     int text = 0, serial = 0, subject = 0, issuer = 0, startdate = 0;
 172     int enddate = 0;
 173     time_t checkoffset = 0;
 174     unsigned long nmflag = 0, certflag = 0;
 175     char nmflag_set = 0;
 176     OPTION_CHOICE o;
 177     ENGINE *e = NULL;
 178 #ifndef OPENSSL_NO_MD5
 179     int subject_hash_old = 0, issuer_hash_old = 0;
 180 #endif
 181
 182     ctx = X509_STORE_new();
 183     if (ctx == NULL)
 184         goto end;
 185     X509_STORE_set_verify_cb(ctx, callb);
 186
 187     prog = opt_init(argc, argv, x509_options);
 188     while ((o = opt_next()) != OPT_EOF) {
 189         switch (o) {
 190         case OPT_EOF:
 191         case OPT_ERR:
 192  opthelp:
 193             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 194             goto end;
 195         case OPT_HELP:
 196             opt_help(x509_options);
 197             ret = 0;
 198             goto end;
 199         case OPT_INFORM:
 200             if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
 201                 goto opthelp;
 202             break;
 203         case OPT_IN:
 204             infile = opt_arg();
 205             break;
 206         case OPT_OUTFORM:
 207             if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
 208                 goto opthelp;
 209             break;
 210         case OPT_KEYFORM:
 211             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &keyformat))
 212                 goto opthelp;
 213             break;
 214         case OPT_CAFORM:
 215             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &CAformat))
 216                 goto opthelp;
 217             break;
 218         case OPT_CAKEYFORM:
 219             if (!opt_format(opt_arg(), OPT_FMT_ANY, &CAkeyformat))
 220                 goto opthelp;
 221             break;
 222         case OPT_OUT:
 223             outfile = opt_arg();
 224             break;
 225         case OPT_REQ:
 226             reqfile = need_rand = 1;
 227             break;
 228
 229         case OPT_SIGOPT:
 230             if (!sigopts)
 231                 sigopts = sk_OPENSSL_STRING_new_null();
 232             if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
 233                 goto opthelp;
 234             break;
 235         case OPT_DAYS:
 236             days = atoi(opt_arg());
 237             break;
 238         case OPT_PASSIN:
 239             passinarg = opt_arg();
 240             break;
 241         case OPT_EXTFILE:
 242             extfile = opt_arg();
 243             break;
 244         case OPT_EXTENSIONS:
 245             extsect = opt_arg();
 246             break;
 247         case OPT_SIGNKEY:
 248             keyfile = opt_arg();
 249             sign_flag = ++num;
 250             need_rand = 1;
 251             break;
 252         case OPT_CA:
 253             CAfile = opt_arg();
 254             CA_flag = ++num;
 255             need_rand = 1;
 256             break;
 257         case OPT_CAKEY:
 258             CAkeyfile = opt_arg();
 259             break;
 260         case OPT_CASERIAL:
 261             CAserial = opt_arg();
 262             break;
 263         case OPT_SET_SERIAL:
 264             if ((sno = s2i_ASN1_INTEGER(NULL, opt_arg())) == NULL)
 265                 goto opthelp;
 266             break;
 267         case OPT_FORCE_PUBKEY:
 268             fkeyfile = opt_arg();
 269             break;
 270         case OPT_ADDTRUST:
 271             if ((objtmp = OBJ_txt2obj(opt_arg(), 0)) == NULL) {
 272                 BIO_printf(bio_err,
 273                            "%s: Invalid trust object value %s\n",
 274                            prog, opt_arg());
 275                 goto opthelp;
 276             }
 277             if (trust == NULL && (trust = sk_ASN1_OBJECT_new_null()) == NULL)
 278                 goto end;
 279             sk_ASN1_OBJECT_push(trust, objtmp);
 280             trustout = 1;
 281             break;
 282         case OPT_ADDREJECT:
 283             if ((objtmp = OBJ_txt2obj(opt_arg(), 0)) == NULL) {
 284                 BIO_printf(bio_err,
 285                            "%s: Invalid reject object value %s\n",
 286                            prog, opt_arg());
 287                 goto opthelp;
 288             }
 289             if (reject == NULL
 290                 && (reject = sk_ASN1_OBJECT_new_null()) == NULL)
 291                 goto end;
 292             sk_ASN1_OBJECT_push(reject, objtmp);
 293             trustout = 1;
 294             break;
 295         case OPT_SETALIAS:
 296             alias = opt_arg();
 297             trustout = 1;
 298             break;
 299         case OPT_CERTOPT:
 300             if (!set_cert_ex(&certflag, opt_arg()))
 301                 goto opthelp;
 302             break;
 303         case OPT_NAMEOPT:
 304             nmflag_set = 1;
 305             if (!set_name_ex(&nmflag, opt_arg()))
 306                 goto opthelp;
 307             break;
 308         case OPT_ENGINE:
 309             e = setup_engine(opt_arg(), 0);
 310             break;
 311         case OPT_C:
 312             C = ++num;
 313             break;
 314         case OPT_EMAIL:
 315             email = ++num;
 316             break;
 317         case OPT_OCSP_URI:
 318             ocsp_uri = ++num;
 319             break;
 320         case OPT_SERIAL:
 321             serial = ++num;
 322             break;
 323         case OPT_NEXT_SERIAL:
 324             next_serial = ++num;
 325             break;
 326         case OPT_MODULUS:
 327             modulus = ++num;
 328             break;
 329         case OPT_PUBKEY:
 330             pubkey = ++num;
 331             break;
 332         case OPT_X509TOREQ:
 333             x509req = ++num;
 334             break;
 335         case OPT_TEXT:
 336             text = ++num;
 337             break;
 338         case OPT_SUBJECT:
 339             subject = ++num;
 340             break;
 341         case OPT_ISSUER:
 342             issuer = ++num;
 343             break;
 344         case OPT_FINGERPRINT:
 345             fingerprint = ++num;
 346             break;
 347         case OPT_HASH:
 348             subject_hash = ++num;
 349             break;
 350         case OPT_ISSUER_HASH:
 351             issuer_hash = ++num;
 352             break;
 353         case OPT_PURPOSE:
 354             pprint = ++num;
 355             break;
 356         case OPT_STARTDATE:
 357             startdate = ++num;
 358             break;
 359         case OPT_ENDDATE:
 360             enddate = ++num;
 361             break;
 362         case OPT_NOOUT:
 363             noout = ++num;
 364             break;
 365         case OPT_NOCERT:
 366             nocert = 1;
 367             break;
 368         case OPT_TRUSTOUT:
 369             trustout = 1;
 370             break;
 371         case OPT_CLRTRUST:
 372             clrtrust = ++num;
 373             break;
 374         case OPT_CLRREJECT:
 375             clrreject = ++num;
 376             break;
 377         case OPT_ALIAS:
 378             aliasout = ++num;
 379             break;
 380         case OPT_CACREATESERIAL:
 381             CA_createserial = ++num;
 382             break;
 383         case OPT_CLREXT:
 384             clrext = 1;
 385             break;
 386         case OPT_OCSPID:
 387             ocspid = ++num;
 388             break;
 389         case OPT_BADSIG:
 390             badsig = 1;
 391             break;
 392 #ifndef OPENSSL_NO_MD5
 393         case OPT_SUBJECT_HASH_OLD:
 394             subject_hash_old = ++num;
 395             break;
 396         case OPT_ISSUER_HASH_OLD:
 397             issuer_hash_old = ++num;
 398             break;
 399 #else
 400         case OPT_SUBJECT_HASH_OLD:
 401         case OPT_ISSUER_HASH_OLD:
 402             break;
 403 #endif
 404         case OPT_DATES:
 405             startdate = ++num;
 406             enddate = ++num;
 407             break;
 408         case OPT_CHECKEND:
 409             checkend = 1;
 410             {
 411                 intmax_t temp = 0;
 412                 if (!opt_imax(opt_arg(), &temp))
 413                     goto opthelp;
 414                 checkoffset = (time_t)temp;
 415                 if ((intmax_t)checkoffset != temp) {
 416                     BIO_printf(bio_err, "%s: checkend time out of range %s\n",
 417                                prog, opt_arg());
 418                     goto opthelp;
 419                 }
 420             }
 421             break;
 422         case OPT_CHECKHOST:
 423             checkhost = opt_arg();
 424             break;
 425         case OPT_CHECKEMAIL:
 426             checkemail = opt_arg();
 427             break;
 428         case OPT_CHECKIP:
 429             checkip = opt_arg();
 430             break;
 431         case OPT_MD:
 432             if (!opt_md(opt_unknown(), &digest))
 433                 goto opthelp;
 434         }
 435     }
 436     argc = opt_num_rest();
 437     argv = opt_rest();
 438     if (argc != 0) {
 439         BIO_printf(bio_err, "%s: Unknown parameter %s\n", prog, argv[0]);
 440         goto opthelp;
 441     }
 442
 443     if (!nmflag_set)
 444         nmflag = XN_FLAG_ONELINE;
 445
 446     out = bio_open_default(outfile, 'w', outformat);
 447     if (out == NULL)
 448         goto end;
 449
 450     if (need_rand)
 451         app_RAND_load_file(NULL, 0);
 452
 453     if (!app_passwd(passinarg, NULL, &passin, NULL)) {
 454         BIO_printf(bio_err, "Error getting password\n");
 455         goto end;
 456     }
 457
 458     if (!X509_STORE_set_default_paths(ctx)) {
 459         ERR_print_errors(bio_err);
 460         goto end;
 461     }
 462
 463     if (fkeyfile) {
 464         fkey = load_pubkey(fkeyfile, keyformat, 0, NULL, e, "Forced key");
 465         if (fkey == NULL)
 466             goto end;
 467     }
 468
 469     if ((CAkeyfile == NULL) && (CA_flag) && (CAformat == FORMAT_PEM)) {
 470         CAkeyfile = CAfile;
 471     } else if ((CA_flag) && (CAkeyfile == NULL)) {
 472         BIO_printf(bio_err,
 473                    "need to specify a CAkey if using the CA command\n");
 474         goto end;
 475     }
 476
 477     if (extfile) {
 478         X509V3_CTX ctx2;
 479         if ((extconf = app_load_config(extfile)) == NULL)
 480             goto end;
 481         if (!extsect) {
 482             extsect = NCONF_get_string(extconf, "default", "extensions");
 483             if (!extsect) {
 484                 ERR_clear_error();
 485                 extsect = "default";
 486             }
 487         }
 488         X509V3_set_ctx_test(&ctx2);
 489         X509V3_set_nconf(&ctx2, extconf);
 490         if (!X509V3_EXT_add_nconf(extconf, &ctx2, extsect, NULL)) {
 491             BIO_printf(bio_err,
 492                        "Error Loading extension section %s\n", extsect);
 493             ERR_print_errors(bio_err);
 494             goto end;
 495         }
 496     }
 497
 498     if (reqfile) {
 499         EVP_PKEY *pkey;
 500         BIO *in;
 501
 502         if (!sign_flag && !CA_flag) {
 503             BIO_printf(bio_err, "We need a private key to sign with\n");
 504             goto end;
 505         }
 506         in = bio_open_default(infile, 'r', informat);
 507         if (in == NULL)
 508             goto end;
 509         req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
 510         BIO_free(in);
 511
 512         if (req == NULL) {
 513             ERR_print_errors(bio_err);
 514             goto end;
 515         }
 516
 517         if ((pkey = X509_REQ_get0_pubkey(req)) == NULL) {
 518             BIO_printf(bio_err, "error unpacking public key\n");
 519             goto end;
 520         }
 521         i = X509_REQ_verify(req, pkey);
 522         if (i < 0) {
 523             BIO_printf(bio_err, "Signature verification error\n");
 524             ERR_print_errors(bio_err);
 525             goto end;
 526         }
 527         if (i == 0) {
 528             BIO_printf(bio_err,
 529                        "Signature did not match the certificate request\n");
 530             goto end;
 531         } else
 532             BIO_printf(bio_err, "Signature ok\n");
 533
 534         print_name(bio_err, "subject=", X509_REQ_get_subject_name(req),
 535                    nmflag);
 536
 537         if ((x = X509_new()) == NULL)
 538             goto end;
 539
 540         if (sno == NULL) {
 541             sno = ASN1_INTEGER_new();
 542             if (sno == NULL || !rand_serial(NULL, sno))
 543                 goto end;
 544             if (!X509_set_serialNumber(x, sno))
 545                 goto end;
 546             ASN1_INTEGER_free(sno);
 547             sno = NULL;
 548         } else if (!X509_set_serialNumber(x, sno))
 549             goto end;
 550
 551         if (!X509_set_issuer_name(x, X509_REQ_get_subject_name(req)))
 552             goto end;
 553         if (!X509_set_subject_name(x, X509_REQ_get_subject_name(req)))
 554             goto end;
 555
 556         X509_gmtime_adj(X509_get_notBefore(x), 0);
 557         X509_time_adj_ex(X509_get_notAfter(x), days, 0, NULL);
 558         if (fkey)
 559             X509_set_pubkey(x, fkey);
 560         else {
 561             pkey = X509_REQ_get0_pubkey(req);
 562             X509_set_pubkey(x, pkey);
 563         }
 564     } else
 565         x = load_cert(infile, informat, "Certificate");
 566
 567     if (x == NULL)
 568         goto end;
 569     if (CA_flag) {
 570         xca = load_cert(CAfile, CAformat, "CA Certificate");
 571         if (xca == NULL)
 572             goto end;
 573     }
 574
 575     if (!noout || text || next_serial) {
 576         OBJ_create("2.99999.3", "SET.ex3", "SET x509v3 extension 3");
 577
 578     }
 579
 580     if (alias)
 581         X509_alias_set1(x, (unsigned char *)alias, -1);
 582
 583     if (clrtrust)
 584         X509_trust_clear(x);
 585     if (clrreject)
 586         X509_reject_clear(x);
 587
 588     if (trust) {
 589         for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
 590             objtmp = sk_ASN1_OBJECT_value(trust, i);
 591             X509_add1_trust_object(x, objtmp);
 592         }
 593     }
 594
 595     if (reject) {
 596         for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
 597             objtmp = sk_ASN1_OBJECT_value(reject, i);
 598             X509_add1_reject_object(x, objtmp);
 599         }
 600     }
 601
 602     if (num) {
 603         for (i = 1; i <= num; i++) {
 604             if (issuer == i) {
 605                 print_name(out, "issuer= ", X509_get_issuer_name(x), nmflag);
 606             } else if (subject == i) {
 607                 print_name(out, "subject= ",
 608                            X509_get_subject_name(x), nmflag);
 609             } else if (serial == i) {
 610                 BIO_printf(out, "serial=");
 611                 i2a_ASN1_INTEGER(out, X509_get_serialNumber(x));
 612                 BIO_printf(out, "\n");
 613             } else if (next_serial == i) {
 614                 BIGNUM *bnser;
 615                 ASN1_INTEGER *ser;
 616                 ser = X509_get_serialNumber(x);
 617                 bnser = ASN1_INTEGER_to_BN(ser, NULL);
 618                 if (!bnser)
 619                     goto end;
 620                 if (!BN_add_word(bnser, 1))
 621                     goto end;
 622                 ser = BN_to_ASN1_INTEGER(bnser, NULL);
 623                 if (!ser)
 624                     goto end;
 625                 BN_free(bnser);
 626                 i2a_ASN1_INTEGER(out, ser);
 627                 ASN1_INTEGER_free(ser);
 628                 BIO_puts(out, "\n");
 629             } else if ((email == i) || (ocsp_uri == i)) {
 630                 int j;
 631                 STACK_OF(OPENSSL_STRING) *emlst;
 632                 if (email == i)
 633                     emlst = X509_get1_email(x);
 634                 else
 635                     emlst = X509_get1_ocsp(x);
 636                 for (j = 0; j < sk_OPENSSL_STRING_num(emlst); j++)
 637                     BIO_printf(out, "%s\n",
 638                                sk_OPENSSL_STRING_value(emlst, j));
 639                 X509_email_free(emlst);
 640             } else if (aliasout == i) {
 641                 unsigned char *alstr;
 642                 alstr = X509_alias_get0(x, NULL);
 643                 if (alstr)
 644                     BIO_printf(out, "%s\n", alstr);
 645                 else
 646                     BIO_puts(out, "<No Alias>\n");
 647             } else if (subject_hash == i) {
 648                 BIO_printf(out, "%08lx\n", X509_subject_name_hash(x));
 649             }
 650 #ifndef OPENSSL_NO_MD5
 651             else if (subject_hash_old == i) {
 652                 BIO_printf(out, "%08lx\n", X509_subject_name_hash_old(x));
 653             }
 654 #endif
 655             else if (issuer_hash == i) {
 656                 BIO_printf(out, "%08lx\n", X509_issuer_name_hash(x));
 657             }
 658 #ifndef OPENSSL_NO_MD5
 659             else if (issuer_hash_old == i) {
 660                 BIO_printf(out, "%08lx\n", X509_issuer_name_hash_old(x));
 661             }
 662 #endif
 663             else if (pprint == i) {
 664                 X509_PURPOSE *ptmp;
 665                 int j;
 666                 BIO_printf(out, "Certificate purposes:\n");
 667                 for (j = 0; j < X509_PURPOSE_get_count(); j++) {
 668                     ptmp = X509_PURPOSE_get0(j);
 669                     purpose_print(out, x, ptmp);
 670                 }
 671             } else if (modulus == i) {
 672                 EVP_PKEY *pkey;
 673
 674                 pkey = X509_get0_pubkey(x);
 675                 if (pkey == NULL) {
 676                     BIO_printf(bio_err, "Modulus=unavailable\n");
 677                     ERR_print_errors(bio_err);
 678                     goto end;
 679                 }
 680                 BIO_printf(out, "Modulus=");
 681 #ifndef OPENSSL_NO_RSA
 682                 if (EVP_PKEY_id(pkey) == EVP_PKEY_RSA) {
 683                     BIGNUM *n;
 684                     RSA_get0_key(EVP_PKEY_get0_RSA(pkey), &n, NULL, NULL);
 685                     BN_print(out, n);
 686                 } else
 687 #endif
 688 #ifndef OPENSSL_NO_DSA
 689                 if (EVP_PKEY_id(pkey) == EVP_PKEY_DSA) {
 690                     BIGNUM *dsapub = NULL;
 691                     DSA_get0_key(EVP_PKEY_get0_DSA(pkey), &dsapub, NULL);
 692                     BN_print(out, dsapub);
 693                 } else
 694 #endif
 695                 {
 696                     BIO_printf(out, "Wrong Algorithm type");
 697                 }
 698                 BIO_printf(out, "\n");
 699             } else if (pubkey == i) {
 700                 EVP_PKEY *pkey;
 701
 702                 pkey = X509_get0_pubkey(x);
 703                 if (pkey == NULL) {
 704                     BIO_printf(bio_err, "Error getting public key\n");
 705                     ERR_print_errors(bio_err);
 706                     goto end;
 707                 }
 708                 PEM_write_bio_PUBKEY(out, pkey);
 709             } else if (C == i) {
 710                 unsigned char *d;
 711                 char *m;
 712                 int len;
 713
 714                 X509_NAME_oneline(X509_get_subject_name(x), buf, sizeof buf);
 715                 BIO_printf(out, "/*\n"
 716                                 " * Subject: %s\n", buf);
 717
 718                 X509_NAME_oneline(X509_get_issuer_name(x), buf, sizeof buf);
 719                 BIO_printf(out, " * Issuer:  %s\n"
 720                                 " */\n", buf);
 721
 722                 len = i2d_X509(x, NULL);
 723                 m = app_malloc(len, "x509 name buffer");
 724                 d = (unsigned char *)m;
 725                 len = i2d_X509_NAME(X509_get_subject_name(x), &d);
 726                 print_array(out, "the_subject_name", len, (unsigned char *)m);
 727                 d = (unsigned char *)m;
 728                 len = i2d_X509_PUBKEY(X509_get_X509_PUBKEY(x), &d);
 729                 print_array(out, "the_public_key", len, (unsigned char *)m);
 730                 d = (unsigned char *)m;
 731                 len = i2d_X509(x, &d);
 732                 print_array(out, "the_certificate", len, (unsigned char *)m);
 733                 OPENSSL_free(m);
 734             } else if (text == i) {
 735                 X509_print_ex(out, x, nmflag, certflag);
 736             } else if (startdate == i) {
 737                 BIO_puts(out, "notBefore=");
 738                 ASN1_TIME_print(out, X509_get_notBefore(x));
 739                 BIO_puts(out, "\n");
 740             } else if (enddate == i) {
 741                 BIO_puts(out, "notAfter=");
 742                 ASN1_TIME_print(out, X509_get_notAfter(x));
 743                 BIO_puts(out, "\n");
 744             } else if (fingerprint == i) {
 745                 int j;
 746                 unsigned int n;
 747                 unsigned char md[EVP_MAX_MD_SIZE];
 748                 const EVP_MD *fdig = digest;
 749
 750                 if (!fdig)
 751                     fdig = EVP_sha1();
 752
 753                 if (!X509_digest(x, fdig, md, &n)) {
 754                     BIO_printf(bio_err, "out of memory\n");
 755                     goto end;
 756                 }
 757                 BIO_printf(out, "%s Fingerprint=",
 758                            OBJ_nid2sn(EVP_MD_type(fdig)));
 759                 for (j = 0; j < (int)n; j++) {
 760                     BIO_printf(out, "%02X%c", md[j], (j + 1 == (int)n)
 761                                ? '\n' : ':');
 762                 }
 763             }
 764
 765             /* should be in the library */
 766             else if ((sign_flag == i) && (x509req == 0)) {
 767                 BIO_printf(bio_err, "Getting Private key\n");
 768                 if (Upkey == NULL) {
 769                     Upkey = load_key(keyfile, keyformat, 0,
 770                                      passin, e, "Private key");
 771                     if (Upkey == NULL)
 772                         goto end;
 773                 }
 774
 775                 assert(need_rand);
 776                 if (!sign(x, Upkey, days, clrext, digest, extconf, extsect))
 777                     goto end;
 778             } else if (CA_flag == i) {
 779                 BIO_printf(bio_err, "Getting CA Private Key\n");
 780                 if (CAkeyfile != NULL) {
 781                     CApkey = load_key(CAkeyfile, CAkeyformat,
 782                                       0, passin, e, "CA Private Key");
 783                     if (CApkey == NULL)
 784                         goto end;
 785                 }
 786
 787                 assert(need_rand);
 788                 if (!x509_certify(ctx, CAfile, digest, x, xca,
 789                                   CApkey, sigopts,
 790                                   CAserial, CA_createserial, days, clrext,
 791                                   extconf, extsect, sno, reqfile))
 792                     goto end;
 793             } else if (x509req == i) {
 794                 EVP_PKEY *pk;
 795
 796                 BIO_printf(bio_err, "Getting request Private Key\n");
 797                 if (keyfile == NULL) {
 798                     BIO_printf(bio_err, "no request key file specified\n");
 799                     goto end;
 800                 } else {
 801                     pk = load_key(keyfile, keyformat, 0,
 802                                   passin, e, "request key");
 803                     if (pk == NULL)
 804                         goto end;
 805                 }
 806
 807                 BIO_printf(bio_err, "Generating certificate request\n");
 808
 809                 rq = X509_to_X509_REQ(x, pk, digest);
 810                 EVP_PKEY_free(pk);
 811                 if (rq == NULL) {
 812                     ERR_print_errors(bio_err);
 813                     goto end;
 814                 }
 815                 if (!noout) {
 816                     X509_REQ_print(out, rq);
 817                     PEM_write_bio_X509_REQ(out, rq);
 818                 }
 819                 noout = 1;
 820             } else if (ocspid == i) {
 821                 X509_ocspid_print(out, x);
 822             }
 823         }
 824     }
 825
 826     if (checkend) {
 827         time_t tcheck = time(NULL) + checkoffset;
 828
 829         if (X509_cmp_time(X509_get_notAfter(x), &tcheck) < 0) {
 830             BIO_printf(out, "Certificate will expire\n");
 831             ret = 1;
 832         } else {
 833             BIO_printf(out, "Certificate will not expire\n");
 834             ret = 0;
 835         }
 836         goto end;
 837     }
 838
 839     print_cert_checks(out, x, checkhost, checkemail, checkip);
 840
 841     if (noout || nocert) {
 842         ret = 0;
 843         goto end;
 844     }
 845
 846     if (badsig) {
 847         ASN1_BIT_STRING *signature;
 848         unsigned char *s;
 849         X509_get0_signature(&signature, NULL, x);
 850         s = ASN1_STRING_data(signature);
 851         s[ASN1_STRING_length(signature) - 1] ^= 0x1;
 852     }
 853
 854     if (outformat == FORMAT_ASN1)
 855         i = i2d_X509_bio(out, x);
 856     else if (outformat == FORMAT_PEM) {
 857         if (trustout)
 858             i = PEM_write_bio_X509_AUX(out, x);
 859         else
 860             i = PEM_write_bio_X509(out, x);
 861     } else {
 862         BIO_printf(bio_err, "bad output format specified for outfile\n");
 863         goto end;
 864     }
 865     if (!i) {
 866         BIO_printf(bio_err, "unable to write certificate\n");
 867         ERR_print_errors(bio_err);
 868         goto end;
 869     }
 870     ret = 0;
 871  end:
 872     if (need_rand)
 873         app_RAND_write_file(NULL);
 874     NCONF_free(extconf);
 875     BIO_free_all(out);
 876     X509_STORE_free(ctx);
 877     X509_REQ_free(req);
 878     X509_free(x);
 879     X509_free(xca);
 880     EVP_PKEY_free(Upkey);
 881     EVP_PKEY_free(CApkey);
 882     EVP_PKEY_free(fkey);
 883     sk_OPENSSL_STRING_free(sigopts);
 884     X509_REQ_free(rq);
 885     ASN1_INTEGER_free(sno);
 886     sk_ASN1_OBJECT_pop_free(trust, ASN1_OBJECT_free);
 887     sk_ASN1_OBJECT_pop_free(reject, ASN1_OBJECT_free);
 888     OPENSSL_free(passin);
 889     return (ret);
 890 }
 891
 892 static ASN1_INTEGER *x509_load_serial(char *CAfile, char *serialfile,
 893                                       int create)
 894 {
 895     char *buf = NULL, *p;
 896     ASN1_INTEGER *bs = NULL;
 897     BIGNUM *serial = NULL;
 898     size_t len;
 899
 900     len = ((serialfile == NULL)
 901            ? (strlen(CAfile) + strlen(POSTFIX) + 1)
 902            : (strlen(serialfile))) + 1;
 903     buf = app_malloc(len, "serial# buffer");
 904     if (serialfile == NULL) {
 905         OPENSSL_strlcpy(buf, CAfile, len);
 906         for (p = buf; *p; p++)
 907             if (*p == '.') {
 908                 *p = '\0';
 909                 break;
 910             }
 911         OPENSSL_strlcat(buf, POSTFIX, len);
 912     } else
 913         OPENSSL_strlcpy(buf, serialfile, len);
 914
 915     serial = load_serial(buf, create, NULL);
 916     if (serial == NULL)
 917         goto end;
 918
 919     if (!BN_add_word(serial, 1)) {
 920         BIO_printf(bio_err, "add_word failure\n");
 921         goto end;
 922     }
 923
 924     if (!save_serial(buf, NULL, serial, &bs))
 925         goto end;
 926
 927  end:
 928     OPENSSL_free(buf);
 929     BN_free(serial);
 930     return bs;
 931 }
 932
 933 static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
 934                         X509 *x, X509 *xca, EVP_PKEY *pkey,
 935                         STACK_OF(OPENSSL_STRING) *sigopts,
 936                         char *serialfile, int create,
 937                         int days, int clrext, CONF *conf, char *section,
 938                         ASN1_INTEGER *sno, int reqfile)
 939 {
 940     int ret = 0;
 941     ASN1_INTEGER *bs = NULL;
 942     X509_STORE_CTX *xsc = NULL;
 943     EVP_PKEY *upkey;
 944
 945     upkey = X509_get0_pubkey(xca);
 946     EVP_PKEY_copy_parameters(upkey, pkey);
 947
 948     xsc = X509_STORE_CTX_new();
 949     if (xsc == NULL || !X509_STORE_CTX_init(xsc, ctx, x, NULL)) {
 950         BIO_printf(bio_err, "Error initialising X509 store\n");
 951         goto end;
 952     }
 953     if (sno)
 954         bs = sno;
 955     else if ((bs = x509_load_serial(CAfile, serialfile, create)) == NULL)
 956         goto end;
 957
 958     /*
 959      * NOTE: this certificate can/should be self signed, unless it was a
 960      * certificate request in which case it is not.
 961      */
 962     X509_STORE_CTX_set_cert(xsc, x);
 963     X509_STORE_CTX_set_flags(xsc, X509_V_FLAG_CHECK_SS_SIGNATURE);
 964     if (!reqfile && X509_verify_cert(xsc) <= 0)
 965         goto end;
 966
 967     if (!X509_check_private_key(xca, pkey)) {
 968         BIO_printf(bio_err,
 969                    "CA certificate and CA private key do not match\n");
 970         goto end;
 971     }
 972
 973     if (!X509_set_issuer_name(x, X509_get_subject_name(xca)))
 974         goto end;
 975     if (!X509_set_serialNumber(x, bs))
 976         goto end;
 977
 978     if (X509_gmtime_adj(X509_get_notBefore(x), 0L) == NULL)
 979         goto end;
 980
 981     /* hardwired expired */
 982     if (X509_time_adj_ex(X509_get_notAfter(x), days, 0, NULL) == NULL)
 983         goto end;
 984
 985     if (clrext) {
 986         while (X509_get_ext_count(x) > 0)
 987             X509_delete_ext(x, 0);
 988     }
 989
 990     if (conf) {
 991         X509V3_CTX ctx2;
 992         X509_set_version(x, 2); /* version 3 certificate */
 993         X509V3_set_ctx(&ctx2, xca, x, NULL, NULL, 0);
 994         X509V3_set_nconf(&ctx2, conf);
 995         if (!X509V3_EXT_add_nconf(conf, &ctx2, section, x))
 996             goto end;
 997     }
 998
 999     if (!do_X509_sign(x, pkey, digest, sigopts))
1000         goto end;
1001     ret = 1;
1002  end:
1003     X509_STORE_CTX_free(xsc);
1004     if (!ret)
1005         ERR_print_errors(bio_err);
1006     if (!sno)
1007         ASN1_INTEGER_free(bs);
1008     return ret;
1009 }
1010
1011 static int callb(int ok, X509_STORE_CTX *ctx)
1012 {
1013     int err;
1014     X509 *err_cert;
1015
1016     /*
1017      * it is ok to use a self signed certificate This case will catch both
1018      * the initial ok == 0 and the final ok == 1 calls to this function
1019      */
1020     err = X509_STORE_CTX_get_error(ctx);
1021     if (err == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
1022         return 1;
1023
1024     /*
1025      * BAD we should have gotten an error.  Normally if everything worked
1026      * X509_STORE_CTX_get_error(ctx) will still be set to
1027      * DEPTH_ZERO_SELF_....
1028      */
1029     if (ok) {
1030         BIO_printf(bio_err,
1031                    "error with certificate to be certified - should be self signed\n");
1032         return 0;
1033     } else {
1034         err_cert = X509_STORE_CTX_get_current_cert(ctx);
1035         print_name(bio_err, NULL, X509_get_subject_name(err_cert), 0);
1036         BIO_printf(bio_err,
1037                    "error with certificate - error %d at depth %d\n%s\n", err,
1038                    X509_STORE_CTX_get_error_depth(ctx),
1039                    X509_verify_cert_error_string(err));
1040         return 1;
1041     }
1042 }
1043
1044 /* self sign */
1045 static int sign(X509 *x, EVP_PKEY *pkey, int days, int clrext,
1046                 const EVP_MD *digest, CONF *conf, char *section)
1047 {
1048
1049     if (!X509_set_issuer_name(x, X509_get_subject_name(x)))
1050         goto err;
1051     if (X509_gmtime_adj(X509_get_notBefore(x), 0) == NULL)
1052         goto err;
1053
1054     if (X509_time_adj_ex(X509_get_notAfter(x), days, 0, NULL) == NULL)
1055         goto err;
1056
1057     if (!X509_set_pubkey(x, pkey))
1058         goto err;
1059     if (clrext) {
1060         while (X509_get_ext_count(x) > 0)
1061             X509_delete_ext(x, 0);
1062     }
1063     if (conf) {
1064         X509V3_CTX ctx;
1065         X509_set_version(x, 2); /* version 3 certificate */
1066         X509V3_set_ctx(&ctx, x, x, NULL, NULL, 0);
1067         X509V3_set_nconf(&ctx, conf);
1068         if (!X509V3_EXT_add_nconf(conf, &ctx, section, x))
1069             goto err;
1070     }
1071     if (!X509_sign(x, pkey, digest))
1072         goto err;
1073     return 1;
1074  err:
1075     ERR_print_errors(bio_err);
1076     return 0;
1077 }
1078
1079 static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt)
1080 {
1081     int id, i, idret;
1082     char *pname;
1083     id = X509_PURPOSE_get_id(pt);
1084     pname = X509_PURPOSE_get0_name(pt);
1085     for (i = 0; i < 2; i++) {
1086         idret = X509_check_purpose(cert, id, i);
1087         BIO_printf(bio, "%s%s : ", pname, i ? " CA" : "");
1088         if (idret == 1)
1089             BIO_printf(bio, "Yes\n");
1090         else if (idret == 0)
1091             BIO_printf(bio, "No\n");
1092         else
1093             BIO_printf(bio, "Yes (WARNING code=%d)\n", idret);
1094     }
1095     return 1;
1096 }