apps/x509.c

   1 /*
   2  * Copyright 1995-2017 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, const char *section);
  37 static int x509_certify(X509_STORE *ctx, const char *CAfile, const EVP_MD *digest,
  38                         X509 *x, X509 *xca, EVP_PKEY *pkey,
  39                         STACK_OF(OPENSSL_STRING) *sigopts, const char *serialfile,
  40                         int create, int days, int clrext, CONF *conf,
  41                         const 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 const 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 certificate extensions"},
  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, '<', "Force the Key to put inside certificate"},
 129     {"next_serial", OPT_NEXT_SERIAL, '-', "Increment current certificate serial number"},
 130     {"clrreject", OPT_CLRREJECT, '-',
 131      "Clears all the prohibited or rejected uses of the certificate"},
 132     {"badsig", OPT_BADSIG, '-', "Corrupt last byte of certificate signature (for test)"},
 133     {"", OPT_MD, '-', "Any supported digest"},
 134 #ifndef OPENSSL_NO_MD5
 135     {"subject_hash_old", OPT_SUBJECT_HASH_OLD, '-',
 136      "Print old-style (MD5) issuer hash value"},
 137     {"issuer_hash_old", OPT_ISSUER_HASH_OLD, '-',
 138      "Print old-style (MD5) subject hash value"},
 139 #endif
 140 #ifndef OPENSSL_NO_ENGINE
 141     {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
 142 #endif
 143     {NULL}
 144 };
 145
 146 int x509_main(int argc, char **argv)
 147 {
 148     ASN1_INTEGER *sno = NULL;
 149     ASN1_OBJECT *objtmp = NULL;
 150     BIO *out = NULL;
 151     CONF *extconf = NULL;
 152     EVP_PKEY *Upkey = NULL, *CApkey = NULL, *fkey = NULL;
 153     STACK_OF(ASN1_OBJECT) *trust = NULL, *reject = NULL;
 154     STACK_OF(OPENSSL_STRING) *sigopts = NULL;
 155     X509 *x = NULL, *xca = NULL;
 156     X509_REQ *req = NULL, *rq = NULL;
 157     X509_STORE *ctx = NULL;
 158     const EVP_MD *digest = NULL;
 159     char *CAkeyfile = NULL, *CAserial = NULL, *fkeyfile = NULL, *alias = NULL;
 160     char *checkhost = NULL, *checkemail = NULL, *checkip = NULL;
 161     char *extsect = NULL, *extfile = NULL, *passin = NULL, *passinarg = NULL;
 162     char *infile = NULL, *outfile = NULL, *keyfile = NULL, *CAfile = NULL;
 163     char *prog;
 164     int x509req = 0, days = DEF_DAYS, modulus = 0, pubkey = 0, pprint = 0;
 165     int C = 0, CAformat = FORMAT_PEM, CAkeyformat = FORMAT_PEM;
 166     int fingerprint = 0, reqfile = 0, need_rand = 0, checkend = 0;
 167     int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyformat = FORMAT_PEM;
 168     int next_serial = 0, subject_hash = 0, issuer_hash = 0, ocspid = 0;
 169     int noout = 0, sign_flag = 0, CA_flag = 0, CA_createserial = 0, email = 0;
 170     int ocsp_uri = 0, trustout = 0, clrtrust = 0, clrreject = 0, aliasout = 0;
 171     int ret = 1, i, num = 0, badsig = 0, clrext = 0, nocert = 0;
 172     int text = 0, serial = 0, subject = 0, issuer = 0, startdate = 0;
 173     int enddate = 0;
 174     time_t checkoffset = 0;
 175     unsigned long certflag = 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 != NULL) {
 265                 BIO_printf(bio_err, "Serial number supplied twice\n");
 266                 goto opthelp;
 267             }
 268             if ((sno = s2i_ASN1_INTEGER(NULL, opt_arg())) == NULL)
 269                 goto opthelp;
 270             break;
 271         case OPT_FORCE_PUBKEY:
 272             fkeyfile = opt_arg();
 273             break;
 274         case OPT_ADDTRUST:
 275             if ((objtmp = OBJ_txt2obj(opt_arg(), 0)) == NULL) {
 276                 BIO_printf(bio_err,
 277                            "%s: Invalid trust object value %s\n",
 278                            prog, opt_arg());
 279                 goto opthelp;
 280             }
 281             if (trust == NULL && (trust = sk_ASN1_OBJECT_new_null()) == NULL)
 282                 goto end;
 283             sk_ASN1_OBJECT_push(trust, objtmp);
 284             objtmp = NULL;
 285             trustout = 1;
 286             break;
 287         case OPT_ADDREJECT:
 288             if ((objtmp = OBJ_txt2obj(opt_arg(), 0)) == NULL) {
 289                 BIO_printf(bio_err,
 290                            "%s: Invalid reject object value %s\n",
 291                            prog, opt_arg());
 292                 goto opthelp;
 293             }
 294             if (reject == NULL
 295                 && (reject = sk_ASN1_OBJECT_new_null()) == NULL)
 296                 goto end;
 297             sk_ASN1_OBJECT_push(reject, objtmp);
 298             objtmp = NULL;
 299             trustout = 1;
 300             break;
 301         case OPT_SETALIAS:
 302             alias = opt_arg();
 303             trustout = 1;
 304             break;
 305         case OPT_CERTOPT:
 306             if (!set_cert_ex(&certflag, opt_arg()))
 307                 goto opthelp;
 308             break;
 309         case OPT_NAMEOPT:
 310             if (!set_nameopt(opt_arg()))
 311                 goto opthelp;
 312             break;
 313         case OPT_ENGINE:
 314             e = setup_engine(opt_arg(), 0);
 315             break;
 316         case OPT_C:
 317             C = ++num;
 318             break;
 319         case OPT_EMAIL:
 320             email = ++num;
 321             break;
 322         case OPT_OCSP_URI:
 323             ocsp_uri = ++num;
 324             break;
 325         case OPT_SERIAL:
 326             serial = ++num;
 327             break;
 328         case OPT_NEXT_SERIAL:
 329             next_serial = ++num;
 330             break;
 331         case OPT_MODULUS:
 332             modulus = ++num;
 333             break;
 334         case OPT_PUBKEY:
 335             pubkey = ++num;
 336             break;
 337         case OPT_X509TOREQ:
 338             x509req = ++num;
 339             break;
 340         case OPT_TEXT:
 341             text = ++num;
 342             break;
 343         case OPT_SUBJECT:
 344             subject = ++num;
 345             break;
 346         case OPT_ISSUER:
 347             issuer = ++num;
 348             break;
 349         case OPT_FINGERPRINT:
 350             fingerprint = ++num;
 351             break;
 352         case OPT_HASH:
 353             subject_hash = ++num;
 354             break;
 355         case OPT_ISSUER_HASH:
 356             issuer_hash = ++num;
 357             break;
 358         case OPT_PURPOSE:
 359             pprint = ++num;
 360             break;
 361         case OPT_STARTDATE:
 362             startdate = ++num;
 363             break;
 364         case OPT_ENDDATE:
 365             enddate = ++num;
 366             break;
 367         case OPT_NOOUT:
 368             noout = ++num;
 369             break;
 370         case OPT_NOCERT:
 371             nocert = 1;
 372             break;
 373         case OPT_TRUSTOUT:
 374             trustout = 1;
 375             break;
 376         case OPT_CLRTRUST:
 377             clrtrust = ++num;
 378             break;
 379         case OPT_CLRREJECT:
 380             clrreject = ++num;
 381             break;
 382         case OPT_ALIAS:
 383             aliasout = ++num;
 384             break;
 385         case OPT_CACREATESERIAL:
 386             CA_createserial = ++num;
 387             break;
 388         case OPT_CLREXT:
 389             clrext = 1;
 390             break;
 391         case OPT_OCSPID:
 392             ocspid = ++num;
 393             break;
 394         case OPT_BADSIG:
 395             badsig = 1;
 396             break;
 397 #ifndef OPENSSL_NO_MD5
 398         case OPT_SUBJECT_HASH_OLD:
 399             subject_hash_old = ++num;
 400             break;
 401         case OPT_ISSUER_HASH_OLD:
 402             issuer_hash_old = ++num;
 403             break;
 404 #else
 405         case OPT_SUBJECT_HASH_OLD:
 406         case OPT_ISSUER_HASH_OLD:
 407             break;
 408 #endif
 409         case OPT_DATES:
 410             startdate = ++num;
 411             enddate = ++num;
 412             break;
 413         case OPT_CHECKEND:
 414             checkend = 1;
 415             {
 416                 intmax_t temp = 0;
 417                 if (!opt_imax(opt_arg(), &temp))
 418                     goto opthelp;
 419                 checkoffset = (time_t)temp;
 420                 if ((intmax_t)checkoffset != temp) {
 421                     BIO_printf(bio_err, "%s: checkend time out of range %s\n",
 422                                prog, opt_arg());
 423                     goto opthelp;
 424                 }
 425             }
 426             break;
 427         case OPT_CHECKHOST:
 428             checkhost = opt_arg();
 429             break;
 430         case OPT_CHECKEMAIL:
 431             checkemail = opt_arg();
 432             break;
 433         case OPT_CHECKIP:
 434             checkip = opt_arg();
 435             break;
 436         case OPT_MD:
 437             if (!opt_md(opt_unknown(), &digest))
 438                 goto opthelp;
 439         }
 440     }
 441     argc = opt_num_rest();
 442     argv = opt_rest();
 443     if (argc != 0) {
 444         BIO_printf(bio_err, "%s: Unknown parameter %s\n", prog, argv[0]);
 445         goto opthelp;
 446     }
 447
 448     out = bio_open_default(outfile, 'w', outformat);
 449     if (out == NULL)
 450         goto end;
 451
 452     if (need_rand)
 453         app_RAND_load_file(NULL, 0);
 454
 455     if (!app_passwd(passinarg, NULL, &passin, NULL)) {
 456         BIO_printf(bio_err, "Error getting password\n");
 457         goto end;
 458     }
 459
 460     if (!X509_STORE_set_default_paths(ctx)) {
 461         ERR_print_errors(bio_err);
 462         goto end;
 463     }
 464
 465     if (fkeyfile != NULL) {
 466         fkey = load_pubkey(fkeyfile, keyformat, 0, NULL, e, "Forced key");
 467         if (fkey == NULL)
 468             goto end;
 469     }
 470
 471     if ((CAkeyfile == NULL) && (CA_flag) && (CAformat == FORMAT_PEM)) {
 472         CAkeyfile = CAfile;
 473     } else if ((CA_flag) && (CAkeyfile == NULL)) {
 474         BIO_printf(bio_err,
 475                    "need to specify a CAkey if using the CA command\n");
 476         goto end;
 477     }
 478
 479     if (extfile != NULL) {
 480         X509V3_CTX ctx2;
 481         if ((extconf = app_load_config(extfile)) == NULL)
 482             goto end;
 483         if (extsect == NULL) {
 484             extsect = NCONF_get_string(extconf, "default", "extensions");
 485             if (extsect == NULL) {
 486                 ERR_clear_error();
 487                 extsect = "default";
 488             }
 489         }
 490         X509V3_set_ctx_test(&ctx2);
 491         X509V3_set_nconf(&ctx2, extconf);
 492         if (!X509V3_EXT_add_nconf(extconf, &ctx2, extsect, NULL)) {
 493             BIO_printf(bio_err,
 494                        "Error Loading extension section %s\n", extsect);
 495             ERR_print_errors(bio_err);
 496             goto end;
 497         }
 498     }
 499
 500     if (reqfile) {
 501         EVP_PKEY *pkey;
 502         BIO *in;
 503
 504         if (!sign_flag && !CA_flag) {
 505             BIO_printf(bio_err, "We need a private key to sign with\n");
 506             goto end;
 507         }
 508         in = bio_open_default(infile, 'r', informat);
 509         if (in == NULL)
 510             goto end;
 511         req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
 512         BIO_free(in);
 513
 514         if (req == NULL) {
 515             ERR_print_errors(bio_err);
 516             goto end;
 517         }
 518
 519         if ((pkey = X509_REQ_get0_pubkey(req)) == NULL) {
 520             BIO_printf(bio_err, "error unpacking public key\n");
 521             goto end;
 522         }
 523         i = X509_REQ_verify(req, pkey);
 524         if (i < 0) {
 525             BIO_printf(bio_err, "Signature verification error\n");
 526             ERR_print_errors(bio_err);
 527             goto end;
 528         }
 529         if (i == 0) {
 530             BIO_printf(bio_err,
 531                        "Signature did not match the certificate request\n");
 532             goto end;
 533         } else {
 534             BIO_printf(bio_err, "Signature ok\n");
 535         }
 536
 537         print_name(bio_err, "subject=", X509_REQ_get_subject_name(req),
 538                    get_nameopt());
 539
 540         if ((x = X509_new()) == NULL)
 541             goto end;
 542
 543         if (sno == NULL) {
 544             sno = ASN1_INTEGER_new();
 545             if (sno == NULL || !rand_serial(NULL, sno))
 546                 goto end;
 547             if (!X509_set_serialNumber(x, sno))
 548                 goto end;
 549             ASN1_INTEGER_free(sno);
 550             sno = NULL;
 551         } else if (!X509_set_serialNumber(x, sno)) {
 552             goto end;
 553         }
 554
 555         if (!X509_set_issuer_name(x, X509_REQ_get_subject_name(req)))
 556             goto end;
 557         if (!X509_set_subject_name(x, X509_REQ_get_subject_name(req)))
 558             goto end;
 559         if (!set_cert_times(x, NULL, NULL, days))
 560             goto end;
 561
 562         if (fkey != NULL) {
 563             X509_set_pubkey(x, fkey);
 564         } else {
 565             pkey = X509_REQ_get0_pubkey(req);
 566             X509_set_pubkey(x, pkey);
 567         }
 568     } else {
 569         x = load_cert(infile, informat, "Certificate");
 570     }
 571
 572     if (x == NULL)
 573         goto end;
 574     if (CA_flag) {
 575         xca = load_cert(CAfile, CAformat, "CA Certificate");
 576         if (xca == NULL)
 577             goto end;
 578     }
 579
 580     if (!noout || text || next_serial) {
 581         OBJ_create("2.99999.3", "SET.ex3", "SET x509v3 extension 3");
 582
 583     }
 584
 585     if (alias)
 586         X509_alias_set1(x, (unsigned char *)alias, -1);
 587
 588     if (clrtrust)
 589         X509_trust_clear(x);
 590     if (clrreject)
 591         X509_reject_clear(x);
 592
 593     if (trust != NULL) {
 594         for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
 595             objtmp = sk_ASN1_OBJECT_value(trust, i);
 596             X509_add1_trust_object(x, objtmp);
 597         }
 598         objtmp = NULL;
 599     }
 600
 601     if (reject != NULL) {
 602         for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
 603             objtmp = sk_ASN1_OBJECT_value(reject, i);
 604             X509_add1_reject_object(x, objtmp);
 605         }
 606         objtmp = NULL;
 607     }
 608
 609     if (badsig) {
 610         const ASN1_BIT_STRING *signature;
 611
 612         X509_get0_signature(&signature, NULL, x);
 613         corrupt_signature(signature);
 614     }
 615
 616     if (num) {
 617         for (i = 1; i <= num; i++) {
 618             if (issuer == i) {
 619                 print_name(out, "issuer=", X509_get_issuer_name(x), get_nameopt());
 620             } else if (subject == i) {
 621                 print_name(out, "subject=",
 622                            X509_get_subject_name(x), get_nameopt());
 623             } else if (serial == i) {
 624                 BIO_printf(out, "serial=");
 625                 i2a_ASN1_INTEGER(out, X509_get_serialNumber(x));
 626                 BIO_printf(out, "\n");
 627             } else if (next_serial == i) {
 628                 ASN1_INTEGER *ser = X509_get_serialNumber(x);
 629                 BIGNUM *bnser = ASN1_INTEGER_to_BN(ser, NULL);
 630
 631                 if (!bnser)
 632                     goto end;
 633                 if (!BN_add_word(bnser, 1))
 634                     goto end;
 635                 ser = BN_to_ASN1_INTEGER(bnser, NULL);
 636                 if (!ser)
 637                     goto end;
 638                 BN_free(bnser);
 639                 i2a_ASN1_INTEGER(out, ser);
 640                 ASN1_INTEGER_free(ser);
 641                 BIO_puts(out, "\n");
 642             } else if ((email == i) || (ocsp_uri == i)) {
 643                 int j;
 644                 STACK_OF(OPENSSL_STRING) *emlst;
 645                 if (email == i)
 646                     emlst = X509_get1_email(x);
 647                 else
 648                     emlst = X509_get1_ocsp(x);
 649                 for (j = 0; j < sk_OPENSSL_STRING_num(emlst); j++)
 650                     BIO_printf(out, "%s\n",
 651                                sk_OPENSSL_STRING_value(emlst, j));
 652                 X509_email_free(emlst);
 653             } else if (aliasout == i) {
 654                 unsigned char *alstr;
 655                 alstr = X509_alias_get0(x, NULL);
 656                 if (alstr)
 657                     BIO_printf(out, "%s\n", alstr);
 658                 else
 659                     BIO_puts(out, "<No Alias>\n");
 660             } else if (subject_hash == i) {
 661                 BIO_printf(out, "%08lx\n", X509_subject_name_hash(x));
 662             }
 663 #ifndef OPENSSL_NO_MD5
 664             else if (subject_hash_old == i) {
 665                 BIO_printf(out, "%08lx\n", X509_subject_name_hash_old(x));
 666             }
 667 #endif
 668             else if (issuer_hash == i) {
 669                 BIO_printf(out, "%08lx\n", X509_issuer_name_hash(x));
 670             }
 671 #ifndef OPENSSL_NO_MD5
 672             else if (issuer_hash_old == i) {
 673                 BIO_printf(out, "%08lx\n", X509_issuer_name_hash_old(x));
 674             }
 675 #endif
 676             else if (pprint == i) {
 677                 X509_PURPOSE *ptmp;
 678                 int j;
 679                 BIO_printf(out, "Certificate purposes:\n");
 680                 for (j = 0; j < X509_PURPOSE_get_count(); j++) {
 681                     ptmp = X509_PURPOSE_get0(j);
 682                     purpose_print(out, x, ptmp);
 683                 }
 684             } else if (modulus == i) {
 685                 EVP_PKEY *pkey;
 686
 687                 pkey = X509_get0_pubkey(x);
 688                 if (pkey == NULL) {
 689                     BIO_printf(bio_err, "Modulus=unavailable\n");
 690                     ERR_print_errors(bio_err);
 691                     goto end;
 692                 }
 693                 BIO_printf(out, "Modulus=");
 694 #ifndef OPENSSL_NO_RSA
 695                 if (EVP_PKEY_id(pkey) == EVP_PKEY_RSA) {
 696                     const BIGNUM *n;
 697                     RSA_get0_key(EVP_PKEY_get0_RSA(pkey), &n, NULL, NULL);
 698                     BN_print(out, n);
 699                 } else
 700 #endif
 701 #ifndef OPENSSL_NO_DSA
 702                 if (EVP_PKEY_id(pkey) == EVP_PKEY_DSA) {
 703                     const BIGNUM *dsapub = NULL;
 704                     DSA_get0_key(EVP_PKEY_get0_DSA(pkey), &dsapub, NULL);
 705                     BN_print(out, dsapub);
 706                 } else
 707 #endif
 708                 {
 709                     BIO_printf(out, "Wrong Algorithm type");
 710                 }
 711                 BIO_printf(out, "\n");
 712             } else if (pubkey == i) {
 713                 EVP_PKEY *pkey;
 714
 715                 pkey = X509_get0_pubkey(x);
 716                 if (pkey == NULL) {
 717                     BIO_printf(bio_err, "Error getting public key\n");
 718                     ERR_print_errors(bio_err);
 719                     goto end;
 720                 }
 721                 PEM_write_bio_PUBKEY(out, pkey);
 722             } else if (C == i) {
 723                 unsigned char *d;
 724                 char *m;
 725                 int len;
 726
 727                 print_name(out, "/*\n"
 728                                 " * Subject: ", X509_get_subject_name(x), get_nameopt());
 729                 print_name(out, " * Issuer:  ", X509_get_issuer_name(x), get_nameopt());
 730                 BIO_puts(out, " */\n");
 731
 732                 len = i2d_X509(x, NULL);
 733                 m = app_malloc(len, "x509 name buffer");
 734                 d = (unsigned char *)m;
 735                 len = i2d_X509_NAME(X509_get_subject_name(x), &d);
 736                 print_array(out, "the_subject_name", len, (unsigned char *)m);
 737                 d = (unsigned char *)m;
 738                 len = i2d_X509_PUBKEY(X509_get_X509_PUBKEY(x), &d);
 739                 print_array(out, "the_public_key", len, (unsigned char *)m);
 740                 d = (unsigned char *)m;
 741                 len = i2d_X509(x, &d);
 742                 print_array(out, "the_certificate", len, (unsigned char *)m);
 743                 OPENSSL_free(m);
 744             } else if (text == i) {
 745                 X509_print_ex(out, x, get_nameopt(), certflag);
 746             } else if (startdate == i) {
 747                 BIO_puts(out, "notBefore=");
 748                 ASN1_TIME_print(out, X509_get0_notBefore(x));
 749                 BIO_puts(out, "\n");
 750             } else if (enddate == i) {
 751                 BIO_puts(out, "notAfter=");
 752                 ASN1_TIME_print(out, X509_get0_notAfter(x));
 753                 BIO_puts(out, "\n");
 754             } else if (fingerprint == i) {
 755                 int j;
 756                 unsigned int n;
 757                 unsigned char md[EVP_MAX_MD_SIZE];
 758                 const EVP_MD *fdig = digest;
 759
 760                 if (fdig == NULL)
 761                     fdig = EVP_sha1();
 762
 763                 if (!X509_digest(x, fdig, md, &n)) {
 764                     BIO_printf(bio_err, "out of memory\n");
 765                     goto end;
 766                 }
 767                 BIO_printf(out, "%s Fingerprint=",
 768                            OBJ_nid2sn(EVP_MD_type(fdig)));
 769                 for (j = 0; j < (int)n; j++) {
 770                     BIO_printf(out, "%02X%c", md[j], (j + 1 == (int)n)
 771                                ? '\n' : ':');
 772                 }
 773             }
 774
 775             /* should be in the library */
 776             else if ((sign_flag == i) && (x509req == 0)) {
 777                 BIO_printf(bio_err, "Getting Private key\n");
 778                 if (Upkey == NULL) {
 779                     Upkey = load_key(keyfile, keyformat, 0,
 780                                      passin, e, "Private key");
 781                     if (Upkey == NULL)
 782                         goto end;
 783                 }
 784
 785                 assert(need_rand);
 786                 if (!sign(x, Upkey, days, clrext, digest, extconf, extsect))
 787                     goto end;
 788             } else if (CA_flag == i) {
 789                 BIO_printf(bio_err, "Getting CA Private Key\n");
 790                 if (CAkeyfile != NULL) {
 791                     CApkey = load_key(CAkeyfile, CAkeyformat,
 792                                       0, passin, e, "CA Private Key");
 793                     if (CApkey == NULL)
 794                         goto end;
 795                 }
 796
 797                 assert(need_rand);
 798                 if (!x509_certify(ctx, CAfile, digest, x, xca,
 799                                   CApkey, sigopts,
 800                                   CAserial, CA_createserial, days, clrext,
 801                                   extconf, extsect, sno, reqfile))
 802                     goto end;
 803             } else if (x509req == i) {
 804                 EVP_PKEY *pk;
 805
 806                 BIO_printf(bio_err, "Getting request Private Key\n");
 807                 if (keyfile == NULL) {
 808                     BIO_printf(bio_err, "no request key file specified\n");
 809                     goto end;
 810                 } else {
 811                     pk = load_key(keyfile, keyformat, 0,
 812                                   passin, e, "request key");
 813                     if (pk == NULL)
 814                         goto end;
 815                 }
 816
 817                 BIO_printf(bio_err, "Generating certificate request\n");
 818
 819                 rq = X509_to_X509_REQ(x, pk, digest);
 820                 EVP_PKEY_free(pk);
 821                 if (rq == NULL) {
 822                     ERR_print_errors(bio_err);
 823                     goto end;
 824                 }
 825                 if (!noout) {
 826                     X509_REQ_print_ex(out, rq, get_nameopt(), X509_FLAG_COMPAT);
 827                     PEM_write_bio_X509_REQ(out, rq);
 828                 }
 829                 noout = 1;
 830             } else if (ocspid == i) {
 831                 X509_ocspid_print(out, x);
 832             }
 833         }
 834     }
 835
 836     if (checkend) {
 837         time_t tcheck = time(NULL) + checkoffset;
 838
 839         if (X509_cmp_time(X509_get0_notAfter(x), &tcheck) < 0) {
 840             BIO_printf(out, "Certificate will expire\n");
 841             ret = 1;
 842         } else {
 843             BIO_printf(out, "Certificate will not expire\n");
 844             ret = 0;
 845         }
 846         goto end;
 847     }
 848
 849     print_cert_checks(out, x, checkhost, checkemail, checkip);
 850
 851     if (noout || nocert) {
 852         ret = 0;
 853         goto end;
 854     }
 855
 856     if (outformat == FORMAT_ASN1) {
 857         i = i2d_X509_bio(out, x);
 858     } else if (outformat == FORMAT_PEM) {
 859         if (trustout)
 860             i = PEM_write_bio_X509_AUX(out, x);
 861         else
 862             i = PEM_write_bio_X509(out, x);
 863     } else {
 864         BIO_printf(bio_err, "bad output format specified for outfile\n");
 865         goto end;
 866     }
 867     if (!i) {
 868         BIO_printf(bio_err, "unable to write certificate\n");
 869         ERR_print_errors(bio_err);
 870         goto end;
 871     }
 872     ret = 0;
 873  end:
 874     if (need_rand)
 875         app_RAND_write_file(NULL);
 876     NCONF_free(extconf);
 877     BIO_free_all(out);
 878     X509_STORE_free(ctx);
 879     X509_REQ_free(req);
 880     X509_free(x);
 881     X509_free(xca);
 882     EVP_PKEY_free(Upkey);
 883     EVP_PKEY_free(CApkey);
 884     EVP_PKEY_free(fkey);
 885     sk_OPENSSL_STRING_free(sigopts);
 886     X509_REQ_free(rq);
 887     ASN1_INTEGER_free(sno);
 888     sk_ASN1_OBJECT_pop_free(trust, ASN1_OBJECT_free);
 889     sk_ASN1_OBJECT_pop_free(reject, ASN1_OBJECT_free);
 890     ASN1_OBJECT_free(objtmp);
 891     release_engine(e);
 892     OPENSSL_free(passin);
 893     return (ret);
 894 }
 895
 896 static ASN1_INTEGER *x509_load_serial(const char *CAfile, const char *serialfile,
 897                                       int create)
 898 {
 899     char *buf = NULL, *p;
 900     ASN1_INTEGER *bs = NULL;
 901     BIGNUM *serial = NULL;
 902     size_t len;
 903
 904     len = ((serialfile == NULL)
 905            ? (strlen(CAfile) + strlen(POSTFIX) + 1)
 906            : (strlen(serialfile))) + 1;
 907     buf = app_malloc(len, "serial# buffer");
 908     if (serialfile == NULL) {
 909         strcpy(buf, CAfile);
 910         for (p = buf; *p; p++)
 911             if (*p == '.') {
 912                 *p = '\0';
 913                 break;
 914             }
 915         strcat(buf, POSTFIX);
 916     } else {
 917         strcpy(buf, serialfile);
 918     }
 919
 920     serial = load_serial(buf, create, NULL);
 921     if (serial == NULL)
 922         goto end;
 923
 924     if (!BN_add_word(serial, 1)) {
 925         BIO_printf(bio_err, "add_word failure\n");
 926         goto end;
 927     }
 928
 929     if (!save_serial(buf, NULL, serial, &bs))
 930         goto end;
 931
 932  end:
 933     OPENSSL_free(buf);
 934     BN_free(serial);
 935     return bs;
 936 }
 937
 938 static int x509_certify(X509_STORE *ctx, const char *CAfile, const EVP_MD *digest,
 939                         X509 *x, X509 *xca, EVP_PKEY *pkey,
 940                         STACK_OF(OPENSSL_STRING) *sigopts,
 941                         const char *serialfile, int create,
 942                         int days, int clrext, CONF *conf, const char *section,
 943                         ASN1_INTEGER *sno, int reqfile)
 944 {
 945     int ret = 0;
 946     ASN1_INTEGER *bs = NULL;
 947     X509_STORE_CTX *xsc = NULL;
 948     EVP_PKEY *upkey;
 949
 950     upkey = X509_get0_pubkey(xca);
 951     if (upkey == NULL) {
 952         BIO_printf(bio_err, "Error obtaining CA X509 public key\n");
 953         goto end;
 954     }
 955     EVP_PKEY_copy_parameters(upkey, pkey);
 956
 957     xsc = X509_STORE_CTX_new();
 958     if (xsc == NULL || !X509_STORE_CTX_init(xsc, ctx, x, NULL)) {
 959         BIO_printf(bio_err, "Error initialising X509 store\n");
 960         goto end;
 961     }
 962     if (sno)
 963         bs = sno;
 964     else if ((bs = x509_load_serial(CAfile, serialfile, create)) == NULL)
 965         goto end;
 966
 967     /*
 968      * NOTE: this certificate can/should be self signed, unless it was a
 969      * certificate request in which case it is not.
 970      */
 971     X509_STORE_CTX_set_cert(xsc, x);
 972     X509_STORE_CTX_set_flags(xsc, X509_V_FLAG_CHECK_SS_SIGNATURE);
 973     if (!reqfile && X509_verify_cert(xsc) <= 0)
 974         goto end;
 975
 976     if (!X509_check_private_key(xca, pkey)) {
 977         BIO_printf(bio_err,
 978                    "CA certificate and CA private key do not match\n");
 979         goto end;
 980     }
 981
 982     if (!X509_set_issuer_name(x, X509_get_subject_name(xca)))
 983         goto end;
 984     if (!X509_set_serialNumber(x, bs))
 985         goto end;
 986
 987     if (!set_cert_times(x, NULL, NULL, days))
 988         goto end;
 989
 990     if (clrext) {
 991         while (X509_get_ext_count(x) > 0)
 992             X509_delete_ext(x, 0);
 993     }
 994
 995     if (conf != NULL) {
 996         X509V3_CTX ctx2;
 997         X509_set_version(x, 2); /* version 3 certificate */
 998         X509V3_set_ctx(&ctx2, xca, x, NULL, NULL, 0);
 999         X509V3_set_nconf(&ctx2, conf);
1000         if (!X509V3_EXT_add_nconf(conf, &ctx2, section, x))
1001             goto end;
1002     }
1003
1004     if (!do_X509_sign(x, pkey, digest, sigopts))
1005         goto end;
1006     ret = 1;
1007  end:
1008     X509_STORE_CTX_free(xsc);
1009     if (!ret)
1010         ERR_print_errors(bio_err);
1011     if (!sno)
1012         ASN1_INTEGER_free(bs);
1013     return ret;
1014 }
1015
1016 static int callb(int ok, X509_STORE_CTX *ctx)
1017 {
1018     int err;
1019     X509 *err_cert;
1020
1021     /*
1022      * it is ok to use a self signed certificate This case will catch both
1023      * the initial ok == 0 and the final ok == 1 calls to this function
1024      */
1025     err = X509_STORE_CTX_get_error(ctx);
1026     if (err == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
1027         return 1;
1028
1029     /*
1030      * BAD we should have gotten an error.  Normally if everything worked
1031      * X509_STORE_CTX_get_error(ctx) will still be set to
1032      * DEPTH_ZERO_SELF_....
1033      */
1034     if (ok) {
1035         BIO_printf(bio_err,
1036                    "error with certificate to be certified - should be self signed\n");
1037         return 0;
1038     } else {
1039         err_cert = X509_STORE_CTX_get_current_cert(ctx);
1040         print_name(bio_err, NULL, X509_get_subject_name(err_cert), 0);
1041         BIO_printf(bio_err,
1042                    "error with certificate - error %d at depth %d\n%s\n", err,
1043                    X509_STORE_CTX_get_error_depth(ctx),
1044                    X509_verify_cert_error_string(err));
1045         return 1;
1046     }
1047 }
1048
1049 /* self sign */
1050 static int sign(X509 *x, EVP_PKEY *pkey, int days, int clrext,
1051                 const EVP_MD *digest, CONF *conf, const char *section)
1052 {
1053
1054     if (!X509_set_issuer_name(x, X509_get_subject_name(x)))
1055         goto err;
1056     if (!set_cert_times(x, NULL, NULL, days))
1057         goto err;
1058     if (!X509_set_pubkey(x, pkey))
1059         goto err;
1060     if (clrext) {
1061         while (X509_get_ext_count(x) > 0)
1062             X509_delete_ext(x, 0);
1063     }
1064     if (conf != NULL) {
1065         X509V3_CTX ctx;
1066         X509_set_version(x, 2); /* version 3 certificate */
1067         X509V3_set_ctx(&ctx, x, x, NULL, NULL, 0);
1068         X509V3_set_nconf(&ctx, conf);
1069         if (!X509V3_EXT_add_nconf(conf, &ctx, section, x))
1070             goto err;
1071     }
1072     if (!X509_sign(x, pkey, digest))
1073         goto err;
1074     return 1;
1075  err:
1076     ERR_print_errors(bio_err);
1077     return 0;
1078 }
1079
1080 static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt)
1081 {
1082     int id, i, idret;
1083     const char *pname;
1084     id = X509_PURPOSE_get_id(pt);
1085     pname = X509_PURPOSE_get0_name(pt);
1086     for (i = 0; i < 2; i++) {
1087         idret = X509_check_purpose(cert, id, i);
1088         BIO_printf(bio, "%s%s : ", pname, i ? " CA" : "");
1089         if (idret == 1)
1090             BIO_printf(bio, "Yes\n");
1091         else if (idret == 0)
1092             BIO_printf(bio, "No\n");
1093         else
1094             BIO_printf(bio, "Yes (WARNING code=%d)\n", idret);
1095     }
1096     return 1;
1097 }