t_x509.c revision 298998
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 78int X509_print_fp(FILE *fp, X509 *x) 79{ 80 return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT); 81} 82 83int 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 100int X509_print(BIO *bp, X509 *x) 101{ 102 return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT); 103} 104 105int 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 266int 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 316int 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 339int 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 364int 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 393int 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 403static const char *mon[12] = { 404 "Jan", "Feb", "Mar", "Apr", "May", "Jun", 405 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" 406}; 407 408int 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 460int 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 501int 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} 557