crypto/openssl/crypto/asn1/t_x509.c

   1 /* crypto/asn1/t_x509.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58
  59 #include <stdio.h>
  60 #include "cryptlib.h"
  61 #include <openssl/buffer.h>
  62 #include <openssl/bn.h>
  63 #ifndef OPENSSL_NO_RSA
  64 # include <openssl/rsa.h>
  65 #endif
  66 #ifndef OPENSSL_NO_DSA
  67 # include <openssl/dsa.h>
  68 #endif
  69 #ifndef OPENSSL_NO_EC
  70 # include <openssl/ec.h>
  71 #endif
  72 #include <openssl/objects.h>
  73 #include <openssl/x509.h>
  74 #include <openssl/x509v3.h>
  75 #include "asn1_locl.h"
  76
  77 #ifndef OPENSSL_NO_FP_API
  78 int X509_print_fp(FILE *fp, X509 *x)
  79 {
  80     return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
  81 }
  82
  83 int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag,
  84                      unsigned long cflag)
  85 {
  86     BIO *b;
  87     int ret;
  88
  89     if ((b = BIO_new(BIO_s_file())) == NULL) {
  90         X509err(X509_F_X509_PRINT_EX_FP, ERR_R_BUF_LIB);
  91         return (0);
  92     }
  93     BIO_set_fp(b, fp, BIO_NOCLOSE);
  94     ret = X509_print_ex(b, x, nmflag, cflag);
  95     BIO_free(b);
  96     return (ret);
  97 }
  98 #endif
  99
 100 int X509_print(BIO *bp, X509 *x)
 101 {
 102     return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
 103 }
 104
 105 int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags,
 106                   unsigned long cflag)
 107 {
 108     long l;
 109     int ret = 0, i;
 110     char *m = NULL, mlch = ' ';
 111     int nmindent = 0;
 112     X509_CINF *ci;
 113     ASN1_INTEGER *bs;
 114     EVP_PKEY *pkey = NULL;
 115     const char *neg;
 116
 117     if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
 118         mlch = '\n';
 119         nmindent = 12;
 120     }
 121
 122     if (nmflags == X509_FLAG_COMPAT)
 123         nmindent = 16;
 124
 125     ci = x->cert_info;
 126     if (!(cflag & X509_FLAG_NO_HEADER)) {
 127         if (BIO_write(bp, "Certificate:\n", 13) <= 0)
 128             goto err;
 129         if (BIO_write(bp, "    Data:\n", 10) <= 0)
 130             goto err;
 131     }
 132     if (!(cflag & X509_FLAG_NO_VERSION)) {
 133         l = X509_get_version(x);
 134         if (BIO_printf(bp, "%8sVersion: %lu (0x%lx)\n", "", l + 1, l) <= 0)
 135             goto err;
 136     }
 137     if (!(cflag & X509_FLAG_NO_SERIAL)) {
 138
 139         if (BIO_write(bp, "        Serial Number:", 22) <= 0)
 140             goto err;
 141
 142         bs = X509_get_serialNumber(x);
 143         if (bs->length < (int)sizeof(long)
 144             || (bs->length == sizeof(long) && (bs->data[0] & 0x80) == 0)) {
 145             l = ASN1_INTEGER_get(bs);
 146             if (bs->type == V_ASN1_NEG_INTEGER) {
 147                 l = -l;
 148                 neg = "-";
 149             } else
 150                 neg = "";
 151             if (BIO_printf(bp, " %s%lu (%s0x%lx)\n", neg, l, neg, l) <= 0)
 152                 goto err;
 153         } else {
 154             neg = (bs->type == V_ASN1_NEG_INTEGER) ? " (Negative)" : "";
 155             if (BIO_printf(bp, "\n%12s%s", "", neg) <= 0)
 156                 goto err;
 157
 158             for (i = 0; i < bs->length; i++) {
 159                 if (BIO_printf(bp, "%02x%c", bs->data[i],
 160                                ((i + 1 == bs->length) ? '\n' : ':')) <= 0)
 161                     goto err;
 162             }
 163         }
 164
 165     }
 166
 167     if (!(cflag & X509_FLAG_NO_SIGNAME)) {
 168         if (X509_signature_print(bp, ci->signature, NULL) <= 0)
 169             goto err;
 170 #if 0
 171         if (BIO_printf(bp, "%8sSignature Algorithm: ", "") <= 0)
 172             goto err;
 173         if (i2a_ASN1_OBJECT(bp, ci->signature->algorithm) <= 0)
 174             goto err;
 175         if (BIO_puts(bp, "\n") <= 0)
 176             goto err;
 177 #endif
 178     }
 179
 180     if (!(cflag & X509_FLAG_NO_ISSUER)) {
 181         if (BIO_printf(bp, "        Issuer:%c", mlch) <= 0)
 182             goto err;
 183         if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), nmindent, nmflags)
 184             < 0)
 185             goto err;
 186         if (BIO_write(bp, "\n", 1) <= 0)
 187             goto err;
 188     }
 189     if (!(cflag & X509_FLAG_NO_VALIDITY)) {
 190         if (BIO_write(bp, "        Validity\n", 17) <= 0)
 191             goto err;
 192         if (BIO_write(bp, "            Not Before: ", 24) <= 0)
 193             goto err;
 194         if (!ASN1_TIME_print(bp, X509_get_notBefore(x)))
 195             goto err;
 196         if (BIO_write(bp, "\n            Not After : ", 25) <= 0)
 197             goto err;
 198         if (!ASN1_TIME_print(bp, X509_get_notAfter(x)))
 199             goto err;
 200         if (BIO_write(bp, "\n", 1) <= 0)
 201             goto err;
 202     }
 203     if (!(cflag & X509_FLAG_NO_SUBJECT)) {
 204         if (BIO_printf(bp, "        Subject:%c", mlch) <= 0)
 205             goto err;
 206         if (X509_NAME_print_ex
 207             (bp, X509_get_subject_name(x), nmindent, nmflags) < 0)
 208             goto err;
 209         if (BIO_write(bp, "\n", 1) <= 0)
 210             goto err;
 211     }
 212     if (!(cflag & X509_FLAG_NO_PUBKEY)) {
 213         if (BIO_write(bp, "        Subject Public Key Info:\n", 33) <= 0)
 214             goto err;
 215         if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
 216             goto err;
 217         if (i2a_ASN1_OBJECT(bp, ci->key->algor->algorithm) <= 0)
 218             goto err;
 219         if (BIO_puts(bp, "\n") <= 0)
 220             goto err;
 221
 222         pkey = X509_get_pubkey(x);
 223         if (pkey == NULL) {
 224             BIO_printf(bp, "%12sUnable to load Public Key\n", "");
 225             ERR_print_errors(bp);
 226         } else {
 227             EVP_PKEY_print_public(bp, pkey, 16, NULL);
 228             EVP_PKEY_free(pkey);
 229         }
 230     }
 231
 232     if (!(cflag & X509_FLAG_NO_IDS)) {
 233         if (ci->issuerUID) {
 234             if (BIO_printf(bp, "%8sIssuer Unique ID: ", "") <= 0)
 235                 goto err;
 236             if (!X509_signature_dump(bp, ci->issuerUID, 12))
 237                 goto err;
 238         }
 239         if (ci->subjectUID) {
 240             if (BIO_printf(bp, "%8sSubject Unique ID: ", "") <= 0)
 241                 goto err;
 242             if (!X509_signature_dump(bp, ci->subjectUID, 12))
 243                 goto err;
 244         }
 245     }
 246
 247     if (!(cflag & X509_FLAG_NO_EXTENSIONS))
 248         X509V3_extensions_print(bp, "X509v3 extensions",
 249                                 ci->extensions, cflag, 8);
 250
 251     if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
 252         if (X509_signature_print(bp, x->sig_alg, x->signature) <= 0)
 253             goto err;
 254     }
 255     if (!(cflag & X509_FLAG_NO_AUX)) {
 256         if (!X509_CERT_AUX_print(bp, x->aux, 0))
 257             goto err;
 258     }
 259     ret = 1;
 260  err:
 261     if (m != NULL)
 262         OPENSSL_free(m);
 263     return (ret);
 264 }
 265
 266 int X509_ocspid_print(BIO *bp, X509 *x)
 267 {
 268     unsigned char *der = NULL;
 269     unsigned char *dertmp;
 270     int derlen;
 271     int i;
 272     unsigned char SHA1md[SHA_DIGEST_LENGTH];
 273
 274     /*
 275      * display the hash of the subject as it would appear in OCSP requests
 276      */
 277     if (BIO_printf(bp, "        Subject OCSP hash: ") <= 0)
 278         goto err;
 279     derlen = i2d_X509_NAME(x->cert_info->subject, NULL);
 280     if ((der = dertmp = (unsigned char *)OPENSSL_malloc(derlen)) == NULL)
 281         goto err;
 282     i2d_X509_NAME(x->cert_info->subject, &dertmp);
 283
 284     if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL))
 285         goto err;
 286     for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
 287         if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
 288             goto err;
 289     }
 290     OPENSSL_free(der);
 291     der = NULL;
 292
 293     /*
 294      * display the hash of the public key as it would appear in OCSP requests
 295      */
 296     if (BIO_printf(bp, "\n        Public key OCSP hash: ") <= 0)
 297         goto err;
 298
 299     if (!EVP_Digest(x->cert_info->key->public_key->data,
 300                     x->cert_info->key->public_key->length,
 301                     SHA1md, NULL, EVP_sha1(), NULL))
 302         goto err;
 303     for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
 304         if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
 305             goto err;
 306     }
 307     BIO_printf(bp, "\n");
 308
 309     return (1);
 310  err:
 311     if (der != NULL)
 312         OPENSSL_free(der);
 313     return (0);
 314 }
 315
 316 int X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent)
 317 {
 318     const unsigned char *s;
 319     int i, n;
 320
 321     n = sig->length;
 322     s = sig->data;
 323     for (i = 0; i < n; i++) {
 324         if ((i % 18) == 0) {
 325             if (BIO_write(bp, "\n", 1) <= 0)
 326                 return 0;
 327             if (BIO_indent(bp, indent, indent) <= 0)
 328                 return 0;
 329         }
 330         if (BIO_printf(bp, "%02x%s", s[i], ((i + 1) == n) ? "" : ":") <= 0)
 331             return 0;
 332     }
 333     if (BIO_write(bp, "\n", 1) != 1)
 334         return 0;
 335
 336     return 1;
 337 }
 338
 339 int X509_signature_print(BIO *bp, X509_ALGOR *sigalg, ASN1_STRING *sig)
 340 {
 341     int sig_nid;
 342     if (BIO_puts(bp, "    Signature Algorithm: ") <= 0)
 343         return 0;
 344     if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0)
 345         return 0;
 346
 347     sig_nid = OBJ_obj2nid(sigalg->algorithm);
 348     if (sig_nid != NID_undef) {
 349         int pkey_nid, dig_nid;
 350         const EVP_PKEY_ASN1_METHOD *ameth;
 351         if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid)) {
 352             ameth = EVP_PKEY_asn1_find(NULL, pkey_nid);
 353             if (ameth && ameth->sig_print)
 354                 return ameth->sig_print(bp, sigalg, sig, 9, 0);
 355         }
 356     }
 357     if (sig)
 358         return X509_signature_dump(bp, sig, 9);
 359     else if (BIO_puts(bp, "\n") <= 0)
 360         return 0;
 361     return 1;
 362 }
 363
 364 int ASN1_STRING_print(BIO *bp, const ASN1_STRING *v)
 365 {
 366     int i, n;
 367     char buf[80];
 368     const char *p;
 369
 370     if (v == NULL)
 371         return (0);
 372     n = 0;
 373     p = (const char *)v->data;
 374     for (i = 0; i < v->length; i++) {
 375         if ((p[i] > '~') || ((p[i] < ' ') &&
 376                              (p[i] != '\n') && (p[i] != '\r')))
 377             buf[n] = '.';
 378         else
 379             buf[n] = p[i];
 380         n++;
 381         if (n >= 80) {
 382             if (BIO_write(bp, buf, n) <= 0)
 383                 return (0);
 384             n = 0;
 385         }
 386     }
 387     if (n > 0)
 388         if (BIO_write(bp, buf, n) <= 0)
 389             return (0);
 390     return (1);
 391 }
 392
 393 int ASN1_TIME_print(BIO *bp, const ASN1_TIME *tm)
 394 {
 395     if (tm->type == V_ASN1_UTCTIME)
 396         return ASN1_UTCTIME_print(bp, tm);
 397     if (tm->type == V_ASN1_GENERALIZEDTIME)
 398         return ASN1_GENERALIZEDTIME_print(bp, tm);
 399     BIO_write(bp, "Bad time value", 14);
 400     return (0);
 401 }
 402
 403 static const char *mon[12] = {
 404     "Jan", "Feb", "Mar", "Apr", "May", "Jun",
 405     "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
 406 };
 407
 408 int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
 409 {
 410     char *v;
 411     int gmt = 0;
 412     int i;
 413     int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0;
 414     char *f = NULL;
 415     int f_len = 0;
 416
 417     i = tm->length;
 418     v = (char *)tm->data;
 419
 420     if (i < 12)
 421         goto err;
 422     if (v[i - 1] == 'Z')
 423         gmt = 1;
 424     for (i = 0; i < 12; i++)
 425         if ((v[i] > '9') || (v[i] < '0'))
 426             goto err;
 427     y = (v[0] - '0') * 1000 + (v[1] - '0') * 100
 428         + (v[2] - '0') * 10 + (v[3] - '0');
 429     M = (v[4] - '0') * 10 + (v[5] - '0');
 430     if ((M > 12) || (M < 1))
 431         goto err;
 432     d = (v[6] - '0') * 10 + (v[7] - '0');
 433     h = (v[8] - '0') * 10 + (v[9] - '0');
 434     m = (v[10] - '0') * 10 + (v[11] - '0');
 435     if (tm->length >= 14 &&
 436         (v[12] >= '0') && (v[12] <= '9') &&
 437         (v[13] >= '0') && (v[13] <= '9')) {
 438         s = (v[12] - '0') * 10 + (v[13] - '0');
 439         /* Check for fractions of seconds. */
 440         if (tm->length >= 15 && v[14] == '.') {
 441             int l = tm->length;
 442             f = &v[14];         /* The decimal point. */
 443             f_len = 1;
 444             while (14 + f_len < l && f[f_len] >= '0' && f[f_len] <= '9')
 445                 ++f_len;
 446         }
 447     }
 448
 449     if (BIO_printf(bp, "%s %2d %02d:%02d:%02d%.*s %d%s",
 450                    mon[M - 1], d, h, m, s, f_len, f, y,
 451                    (gmt) ? " GMT" : "") <= 0)
 452         return (0);
 453     else
 454         return (1);
 455  err:
 456     BIO_write(bp, "Bad time value", 14);
 457     return (0);
 458 }
 459
 460 int ASN1_UTCTIME_print(BIO *bp, const ASN1_UTCTIME *tm)
 461 {
 462     const char *v;
 463     int gmt = 0;
 464     int i;
 465     int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0;
 466
 467     i = tm->length;
 468     v = (const char *)tm->data;
 469
 470     if (i < 10)
 471         goto err;
 472     if (v[i - 1] == 'Z')
 473         gmt = 1;
 474     for (i = 0; i < 10; i++)
 475         if ((v[i] > '9') || (v[i] < '0'))
 476             goto err;
 477     y = (v[0] - '0') * 10 + (v[1] - '0');
 478     if (y < 50)
 479         y += 100;
 480     M = (v[2] - '0') * 10 + (v[3] - '0');
 481     if ((M > 12) || (M < 1))
 482         goto err;
 483     d = (v[4] - '0') * 10 + (v[5] - '0');
 484     h = (v[6] - '0') * 10 + (v[7] - '0');
 485     m = (v[8] - '0') * 10 + (v[9] - '0');
 486     if (tm->length >= 12 &&
 487         (v[10] >= '0') && (v[10] <= '9') && (v[11] >= '0') && (v[11] <= '9'))
 488         s = (v[10] - '0') * 10 + (v[11] - '0');
 489
 490     if (BIO_printf(bp, "%s %2d %02d:%02d:%02d %d%s",
 491                    mon[M - 1], d, h, m, s, y + 1900,
 492                    (gmt) ? " GMT" : "") <= 0)
 493         return (0);
 494     else
 495         return (1);
 496  err:
 497     BIO_write(bp, "Bad time value", 14);
 498     return (0);
 499 }
 500
 501 int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
 502 {
 503     char *s, *c, *b;
 504     int ret = 0, l, i;
 505
 506     l = 80 - 2 - obase;
 507
 508     b = X509_NAME_oneline(name, NULL, 0);
 509     if (!b)
 510         return 0;
 511     if (!*b) {
 512         OPENSSL_free(b);
 513         return 1;
 514     }
 515     s = b + 1;                  /* skip the first slash */
 516
 517     c = s;
 518     for (;;) {
 519 #ifndef CHARSET_EBCDIC
 520         if (((*s == '/') &&
 521              ((s[1] >= 'A') && (s[1] <= 'Z') && ((s[2] == '=') ||
 522                                                  ((s[2] >= 'A')
 523                                                   && (s[2] <= 'Z')
 524                                                   && (s[3] == '='))
 525               ))) || (*s == '\0'))
 526 #else
 527         if (((*s == '/') &&
 528              (isupper(s[1]) && ((s[2] == '=') ||
 529                                 (isupper(s[2]) && (s[3] == '='))
 530               ))) || (*s == '\0'))
 531 #endif
 532         {
 533             i = s - c;
 534             if (BIO_write(bp, c, i) != i)
 535                 goto err;
 536             c = s + 1;          /* skip following slash */
 537             if (*s != '\0') {
 538                 if (BIO_write(bp, ", ", 2) != 2)
 539                     goto err;
 540             }
 541             l--;
 542         }
 543         if (*s == '\0')
 544             break;
 545         s++;
 546         l--;
 547     }
 548
 549     ret = 1;
 550     if (0) {
 551  err:
 552         X509err(X509_F_X509_NAME_PRINT, ERR_R_BUF_LIB);
 553     }
 554     OPENSSL_free(b);
 555     return (ret);
 556 }