1 /* $OpenBSD: t_x509.c,v 1.25 2014/07/12 16:33:25 miod Exp $ */ 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 61 #include <openssl/opensslconf.h> 62 63 #include <openssl/bn.h> 64 #include <openssl/buffer.h> 65 #include <openssl/err.h> 66 #include <openssl/objects.h> 67 #include <openssl/x509.h> 68 #include <openssl/x509v3.h> 69 70 #ifndef OPENSSL_NO_DSA 71 #include <openssl/dsa.h> 72 #endif 73 #ifndef OPENSSL_NO_EC 74 #include <openssl/ec.h> 75 #endif 76 #ifndef OPENSSL_NO_RSA 77 #include <openssl/rsa.h> 78 #endif 79 80 #include "asn1_locl.h" 81 82 int 83 X509_print_fp(FILE *fp, X509 *x) 84 { 85 return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT); 86 } 87 88 int 89 X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag, unsigned long cflag) 90 { 91 BIO *b; 92 int ret; 93 94 if ((b = BIO_new(BIO_s_file())) == NULL) { 95 X509err(X509_F_X509_PRINT_EX_FP, ERR_R_BUF_LIB); 96 return (0); 97 } 98 BIO_set_fp(b, fp, BIO_NOCLOSE); 99 ret = X509_print_ex(b, x, nmflag, cflag); 100 BIO_free(b); 101 return (ret); 102 } 103 104 int 105 X509_print(BIO *bp, X509 *x) 106 { 107 return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT); 108 } 109 110 int 111 X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags, unsigned long cflag) 112 { 113 long l; 114 int ret = 0, i; 115 char *m = NULL, mlch = ' '; 116 int nmindent = 0; 117 X509_CINF *ci; 118 ASN1_INTEGER *bs; 119 EVP_PKEY *pkey = NULL; 120 const char *neg; 121 122 if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) { 123 mlch = '\n'; 124 nmindent = 12; 125 } 126 127 if (nmflags == X509_FLAG_COMPAT) 128 nmindent = 16; 129 130 ci = x->cert_info; 131 if (!(cflag & X509_FLAG_NO_HEADER)) { 132 if (BIO_write(bp, "Certificate:\n", 13) <= 0) 133 goto err; 134 if (BIO_write(bp, " Data:\n", 10) <= 0) 135 goto err; 136 } 137 if (!(cflag & X509_FLAG_NO_VERSION)) { 138 l = X509_get_version(x); 139 if (BIO_printf(bp, "%8sVersion: %lu (0x%lx)\n", 140 "", l + 1, l) <= 0) 141 goto err; 142 } 143 if (!(cflag & X509_FLAG_NO_SERIAL)) { 144 if (BIO_write(bp, " Serial Number:", 22) <= 0) 145 goto err; 146 147 bs = X509_get_serialNumber(x); 148 if (bs->length <= (int)sizeof(long)) { 149 l = ASN1_INTEGER_get(bs); 150 if (bs->type == V_ASN1_NEG_INTEGER) { 151 l = -l; 152 neg = "-"; 153 } else 154 neg = ""; 155 if (BIO_printf(bp, " %s%lu (%s0x%lx)\n", 156 neg, l, neg, l) <= 0) 157 goto err; 158 } else { 159 neg = (bs->type == V_ASN1_NEG_INTEGER) ? 160 " (Negative)" : ""; 161 if (BIO_printf(bp, "\n%12s%s", "", neg) <= 0) 162 goto err; 163 for (i = 0; i < bs->length; i++) { 164 if (BIO_printf(bp, "%02x%c", bs->data[i], 165 ((i + 1 == bs->length) ? '\n' : ':')) <= 0) 166 goto err; 167 } 168 } 169 170 } 171 172 if (!(cflag & X509_FLAG_NO_SIGNAME)) { 173 if (X509_signature_print(bp, x->sig_alg, NULL) <= 0) 174 goto err; 175 } 176 177 if (!(cflag & X509_FLAG_NO_ISSUER)) { 178 if (BIO_printf(bp, " Issuer:%c", mlch) <= 0) 179 goto err; 180 if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), 181 nmindent, nmflags) < 0) 182 goto err; 183 if (BIO_write(bp, "\n", 1) <= 0) 184 goto err; 185 } 186 if (!(cflag & X509_FLAG_NO_VALIDITY)) { 187 if (BIO_write(bp, " Validity\n", 17) <= 0) 188 goto err; 189 if (BIO_write(bp, " Not Before: ", 24) <= 0) 190 goto err; 191 if (!ASN1_TIME_print(bp, X509_get_notBefore(x))) 192 goto err; 193 if (BIO_write(bp, "\n Not After : ", 25) <= 0) 194 goto err; 195 if (!ASN1_TIME_print(bp, X509_get_notAfter(x))) 196 goto err; 197 if (BIO_write(bp, "\n", 1) <= 0) 198 goto err; 199 } 200 if (!(cflag & X509_FLAG_NO_SUBJECT)) { 201 if (BIO_printf(bp, " Subject:%c", mlch) <= 0) 202 goto err; 203 if (X509_NAME_print_ex(bp, X509_get_subject_name(x), 204 nmindent, nmflags) < 0) 205 goto err; 206 if (BIO_write(bp, "\n", 1) <= 0) 207 goto err; 208 } 209 if (!(cflag & X509_FLAG_NO_PUBKEY)) { 210 if (BIO_write(bp, " Subject Public Key Info:\n", 211 33) <= 0) 212 goto err; 213 if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0) 214 goto err; 215 if (i2a_ASN1_OBJECT(bp, ci->key->algor->algorithm) <= 0) 216 goto err; 217 if (BIO_puts(bp, "\n") <= 0) 218 goto err; 219 220 pkey = X509_get_pubkey(x); 221 if (pkey == NULL) { 222 BIO_printf(bp, "%12sUnable to load Public Key\n", ""); 223 ERR_print_errors(bp); 224 } else { 225 EVP_PKEY_print_public(bp, pkey, 16, NULL); 226 EVP_PKEY_free(pkey); 227 } 228 } 229 230 if (!(cflag & X509_FLAG_NO_EXTENSIONS)) 231 X509V3_extensions_print(bp, "X509v3 extensions", 232 ci->extensions, cflag, 8); 233 234 if (!(cflag & X509_FLAG_NO_SIGDUMP)) { 235 if (X509_signature_print(bp, x->sig_alg, x->signature) <= 0) 236 goto err; 237 } 238 if (!(cflag & X509_FLAG_NO_AUX)) { 239 if (!X509_CERT_AUX_print(bp, x->aux, 0)) 240 goto err; 241 } 242 ret = 1; 243 244 err: 245 free(m); 246 return (ret); 247 } 248 249 int X509_ocspid_print (BIO *bp, X509 *x) 250 { 251 unsigned char *der = NULL; 252 unsigned char *dertmp; 253 int derlen; 254 int i; 255 unsigned char SHA1md[SHA_DIGEST_LENGTH]; 256 257 /* display the hash of the subject as it would appear 258 in OCSP requests */ 259 if (BIO_printf(bp, " Subject OCSP hash: ") <= 0) 260 goto err; 261 derlen = i2d_X509_NAME(x->cert_info->subject, NULL); 262 if ((der = dertmp = malloc(derlen)) == NULL) 263 goto err; 264 i2d_X509_NAME(x->cert_info->subject, &dertmp); 265 266 if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL)) 267 goto err; 268 for (i = 0; i < SHA_DIGEST_LENGTH; i++) { 269 if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0) 270 goto err; 271 } 272 free (der); 273 der = NULL; 274 275 /* display the hash of the public key as it would appear 276 in OCSP requests */ 277 if (BIO_printf(bp, "\n Public key OCSP hash: ") <= 0) 278 goto err; 279 280 if (!EVP_Digest(x->cert_info->key->public_key->data, 281 x->cert_info->key->public_key->length, 282 SHA1md, NULL, EVP_sha1(), NULL)) 283 goto err; 284 for (i = 0; i < SHA_DIGEST_LENGTH; i++) { 285 if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0) 286 goto err; 287 } 288 BIO_printf(bp, "\n"); 289 290 return (1); 291 292 err: 293 free(der); 294 return (0); 295 } 296 297 int 298 X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent) 299 { 300 const unsigned char *s; 301 int i, n; 302 303 n = sig->length; 304 s = sig->data; 305 for (i = 0; i < n; i++) { 306 if ((i % 18) == 0) { 307 if (BIO_write(bp, "\n", 1) <= 0) 308 return 0; 309 if (BIO_indent(bp, indent, indent) <= 0) 310 return 0; 311 } 312 if (BIO_printf(bp, "%02x%s", s[i], 313 ((i + 1) == n) ? "" : ":") <= 0) 314 return 0; 315 } 316 if (BIO_write(bp, "\n", 1) != 1) 317 return 0; 318 319 return 1; 320 } 321 322 int 323 X509_signature_print(BIO *bp, X509_ALGOR *sigalg, ASN1_STRING *sig) 324 { 325 int sig_nid; 326 if (BIO_puts(bp, " Signature Algorithm: ") <= 0) 327 return 0; 328 if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0) 329 return 0; 330 331 sig_nid = OBJ_obj2nid(sigalg->algorithm); 332 if (sig_nid != NID_undef) { 333 int pkey_nid, dig_nid; 334 const EVP_PKEY_ASN1_METHOD *ameth; 335 if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid)) { 336 ameth = EVP_PKEY_asn1_find(NULL, pkey_nid); 337 if (ameth && ameth->sig_print) 338 return ameth->sig_print(bp, sigalg, sig, 9, 0); 339 } 340 } 341 if (sig) 342 return X509_signature_dump(bp, sig, 9); 343 else if (BIO_puts(bp, "\n") <= 0) 344 return 0; 345 return 1; 346 } 347 348 int 349 ASN1_STRING_print(BIO *bp, const ASN1_STRING *v) 350 { 351 int i, n; 352 char buf[80]; 353 const char *p; 354 355 if (v == NULL) 356 return (0); 357 n = 0; 358 p = (const char *)v->data; 359 for (i = 0; i < v->length; i++) { 360 if ((p[i] > '~') || ((p[i] < ' ') && 361 (p[i] != '\n') && (p[i] != '\r'))) 362 buf[n] = '.'; 363 else 364 buf[n] = p[i]; 365 n++; 366 if (n >= 80) { 367 if (BIO_write(bp, buf, n) <= 0) 368 return (0); 369 n = 0; 370 } 371 } 372 if (n > 0) 373 if (BIO_write(bp, buf, n) <= 0) 374 return (0); 375 return (1); 376 } 377 378 int 379 ASN1_TIME_print(BIO *bp, const ASN1_TIME *tm) 380 { 381 if (tm->type == V_ASN1_UTCTIME) 382 return ASN1_UTCTIME_print(bp, tm); 383 if (tm->type == V_ASN1_GENERALIZEDTIME) 384 return ASN1_GENERALIZEDTIME_print(bp, tm); 385 BIO_write(bp, "Bad time value", 14); 386 return (0); 387 } 388 389 static const char *mon[12] = { 390 "Jan", "Feb", "Mar", "Apr", "May", "Jun", 391 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" 392 }; 393 394 int 395 ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm) 396 { 397 char *v; 398 int gmt = 0; 399 int i; 400 int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0; 401 char *f = NULL; 402 int f_len = 0; 403 404 i = tm->length; 405 v = (char *)tm->data; 406 407 if (i < 12) 408 goto err; 409 if (v[i-1] == 'Z') 410 gmt = 1; 411 for (i = 0; i < 12; i++) 412 if ((v[i] > '9') || (v[i] < '0')) 413 goto err; 414 y = (v[0] - '0') * 1000 + (v[1] - '0') * 100 + 415 (v[2] - '0') * 10 + (v[3] - '0'); 416 M = (v[4] - '0') * 10 + (v[5] - '0'); 417 if ((M > 12) || (M < 1)) 418 goto err; 419 d = (v[6] - '0') * 10 + (v[7] - '0'); 420 h = (v[8] - '0') * 10 + (v[9] - '0'); 421 m = (v[10] - '0') * 10 + (v[11] - '0'); 422 if (tm->length >= 14 && 423 (v[12] >= '0') && (v[12] <= '9') && 424 (v[13] >= '0') && (v[13] <= '9')) { 425 s = (v[12] - '0') * 10 + (v[13] - '0'); 426 /* Check for fractions of seconds. */ 427 if (tm->length >= 15 && v[14] == '.') { 428 int l = tm->length; 429 f = &v[14]; /* The decimal point. */ 430 f_len = 1; 431 while (14 + f_len < l && f[f_len] >= '0' && 432 f[f_len] <= '9') 433 ++f_len; 434 } 435 } 436 437 if (BIO_printf(bp, "%s %2d %02d:%02d:%02d%.*s %d%s", 438 mon[M - 1], d, h, m, s, f_len, f, y, (gmt) ? " GMT" : "") <= 0) 439 return (0); 440 else 441 return (1); 442 443 err: 444 BIO_write(bp, "Bad time value", 14); 445 return (0); 446 } 447 448 int 449 ASN1_UTCTIME_print(BIO *bp, const ASN1_UTCTIME *tm) 450 { 451 const char *v; 452 int gmt = 0; 453 int i; 454 int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0; 455 456 i = tm->length; 457 v = (const char *)tm->data; 458 459 if (i < 10) 460 goto err; 461 if (v[i-1] == 'Z') 462 gmt = 1; 463 for (i = 0; i < 10; i++) 464 if ((v[i] > '9') || (v[i] < '0')) 465 goto err; 466 y = (v[0] - '0') * 10 + (v[1] - '0'); 467 if (y < 50) 468 y += 100; 469 M = (v[2] - '0') * 10 + (v[3] - '0'); 470 if ((M > 12) || (M < 1)) 471 goto err; 472 d = (v[4] - '0') * 10 + (v[5] - '0'); 473 h = (v[6] - '0') * 10 + (v[7] - '0'); 474 m = (v[8] - '0') * 10 + (v[9] - '0'); 475 if (tm->length >=12 && 476 (v[10] >= '0') && (v[10] <= '9') && 477 (v[11] >= '0') && (v[11] <= '9')) 478 s = (v[10] - '0') * 10 + (v[11] - '0'); 479 480 if (BIO_printf(bp, "%s %2d %02d:%02d:%02d %d%s", 481 mon[M - 1], d, h, m, s, y + 1900, (gmt) ? " GMT" : "") <= 0) 482 return (0); 483 else 484 return (1); 485 486 err: 487 BIO_write(bp, "Bad time value", 14); 488 return (0); 489 } 490 491 int 492 X509_NAME_print(BIO *bp, X509_NAME *name, int obase) 493 { 494 char *s, *c, *b; 495 int ret = 0, l, i; 496 497 l = 80 - 2 - obase; 498 499 b = X509_NAME_oneline(name, NULL, 0); 500 if (b == NULL) 501 return 0; 502 if (*b == '\0') { 503 free(b); 504 return 1; 505 } 506 s = b + 1; /* skip the first slash */ 507 508 c = s; 509 for (;;) { 510 if (((*s == '/') && 511 ((s[1] >= 'A') && (s[1] <= 'Z') && 512 ((s[2] == '=') || ((s[2] >= 'A') && (s[2] <= 'Z') && 513 (s[3] == '='))))) || (*s == '\0')) { 514 i = s - c; 515 if (BIO_write(bp, c, i) != i) 516 goto err; 517 c = s + 1; /* skip following slash */ 518 if (*s != '\0') { 519 if (BIO_write(bp, ", ", 2) != 2) 520 goto err; 521 } 522 l--; 523 } 524 if (*s == '\0') 525 break; 526 s++; 527 l--; 528 } 529 530 ret = 1; 531 if (0) { 532 err: 533 X509err(X509_F_X509_NAME_PRINT, ERR_R_BUF_LIB); 534 } 535 free(b); 536 return (ret); 537 } 538