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 l = ASN1_INTEGER_get(bs); 145 if (bs->type == V_ASN1_NEG_INTEGER) { 146 l = -l; 147 neg = "-"; 148 } else 149 neg = ""; 150 if (BIO_printf(bp, " %s%lu (%s0x%lx)\n", neg, l, neg, l) <= 0) 151 goto err; 152 } else { 153 neg = (bs->type == V_ASN1_NEG_INTEGER) ? " (Negative)" : ""; 154 if (BIO_printf(bp, "\n%12s%s", "", neg) <= 0) 155 goto err; 156 157 for (i = 0; i < bs->length; i++) { 158 if (BIO_printf(bp, "%02x%c", bs->data[i], 159 ((i + 1 == bs->length) ? '\n' : ':')) <= 0) 160 goto err; 161 } 162 } 163 164 } 165 166 if (!(cflag & X509_FLAG_NO_SIGNAME)) { 167 if (X509_signature_print(bp, ci->signature, NULL) <= 0) 168 goto err; 169#if 0 170 if (BIO_printf(bp, "%8sSignature Algorithm: ", "") <= 0) 171 goto err; 172 if (i2a_ASN1_OBJECT(bp, ci->signature->algorithm) <= 0) 173 goto err; 174 if (BIO_puts(bp, "\n") <= 0) 175 goto err; 176#endif 177 } 178 179 if (!(cflag & X509_FLAG_NO_ISSUER)) { 180 if (BIO_printf(bp, " Issuer:%c", mlch) <= 0) 181 goto err; 182 if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), nmindent, nmflags) 183 < 0) 184 goto err; 185 if (BIO_write(bp, "\n", 1) <= 0) 186 goto err; 187 } 188 if (!(cflag & X509_FLAG_NO_VALIDITY)) { 189 if (BIO_write(bp, " Validity\n", 17) <= 0) 190 goto err; 191 if (BIO_write(bp, " Not Before: ", 24) <= 0) 192 goto err; 193 if (!ASN1_TIME_print(bp, X509_get_notBefore(x))) 194 goto err; 195 if (BIO_write(bp, "\n Not After : ", 25) <= 0) 196 goto err; 197 if (!ASN1_TIME_print(bp, X509_get_notAfter(x))) 198 goto err; 199 if (BIO_write(bp, "\n", 1) <= 0) 200 goto err; 201 } 202 if (!(cflag & X509_FLAG_NO_SUBJECT)) { 203 if (BIO_printf(bp, " Subject:%c", mlch) <= 0) 204 goto err; 205 if (X509_NAME_print_ex 206 (bp, X509_get_subject_name(x), nmindent, nmflags) < 0) 207 goto err; 208 if (BIO_write(bp, "\n", 1) <= 0) 209 goto err; 210 } 211 if (!(cflag & X509_FLAG_NO_PUBKEY)) { 212 if (BIO_write(bp, " Subject Public Key Info:\n", 33) <= 0) 213 goto err; 214 if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0) 215 goto err; 216 if (i2a_ASN1_OBJECT(bp, ci->key->algor->algorithm) <= 0) 217 goto err; 218 if (BIO_puts(bp, "\n") <= 0) 219 goto err; 220 221 pkey = X509_get_pubkey(x); 222 if (pkey == NULL) { 223 BIO_printf(bp, "%12sUnable to load Public Key\n", ""); 224 ERR_print_errors(bp); 225 } else { 226 EVP_PKEY_print_public(bp, pkey, 16, NULL); 227 EVP_PKEY_free(pkey); 228 } 229 } 230 231 if (!(cflag & X509_FLAG_NO_IDS)) { 232 if (ci->issuerUID) { 233 if (BIO_printf(bp, "%8sIssuer Unique ID: ", "") <= 0) 234 goto err; 235 if (!X509_signature_dump(bp, ci->issuerUID, 12)) 236 goto err; 237 } 238 if (ci->subjectUID) { 239 if (BIO_printf(bp, "%8sSubject Unique ID: ", "") <= 0) 240 goto err; 241 if (!X509_signature_dump(bp, ci->subjectUID, 12)) 242 goto err; 243 } 244 } 245 246 if (!(cflag & X509_FLAG_NO_EXTENSIONS)) 247 X509V3_extensions_print(bp, "X509v3 extensions", 248 ci->extensions, cflag, 8); 249 250 if (!(cflag & X509_FLAG_NO_SIGDUMP)) { 251 if (X509_signature_print(bp, x->sig_alg, x->signature) <= 0) 252 goto err; 253 } 254 if (!(cflag & X509_FLAG_NO_AUX)) { 255 if (!X509_CERT_AUX_print(bp, x->aux, 0)) 256 goto err; 257 } 258 ret = 1; 259 err: 260 if (m != NULL) 261 OPENSSL_free(m); 262 return (ret); 263} 264 265int X509_ocspid_print(BIO *bp, X509 *x) 266{ 267 unsigned char *der = NULL; 268 unsigned char *dertmp; 269 int derlen; 270 int i; 271 unsigned char SHA1md[SHA_DIGEST_LENGTH]; 272 273 /* 274 * display the hash of the subject as it would appear in OCSP requests 275 */ 276 if (BIO_printf(bp, " Subject OCSP hash: ") <= 0) 277 goto err; 278 derlen = i2d_X509_NAME(x->cert_info->subject, NULL); 279 if ((der = dertmp = (unsigned char *)OPENSSL_malloc(derlen)) == NULL) 280 goto err; 281 i2d_X509_NAME(x->cert_info->subject, &dertmp); 282 283 if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL)) 284 goto err; 285 for (i = 0; i < SHA_DIGEST_LENGTH; i++) { 286 if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0) 287 goto err; 288 } 289 OPENSSL_free(der); 290 der = NULL; 291 292 /* 293 * display the hash of the public key as it would appear in OCSP requests 294 */ 295 if (BIO_printf(bp, "\n Public key OCSP hash: ") <= 0) 296 goto err; 297 298 if (!EVP_Digest(x->cert_info->key->public_key->data, 299 x->cert_info->key->public_key->length, 300 SHA1md, NULL, EVP_sha1(), NULL)) 301 goto err; 302 for (i = 0; i < SHA_DIGEST_LENGTH; i++) { 303 if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0) 304 goto err; 305 } 306 BIO_printf(bp, "\n"); 307 308 return (1); 309 err: 310 if (der != NULL) 311 OPENSSL_free(der); 312 return (0); 313} 314 315int X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent) 316{ 317 const unsigned char *s; 318 int i, n; 319 320 n = sig->length; 321 s = sig->data; 322 for (i = 0; i < n; i++) { 323 if ((i % 18) == 0) { 324 if (BIO_write(bp, "\n", 1) <= 0) 325 return 0; 326 if (BIO_indent(bp, indent, indent) <= 0) 327 return 0; 328 } 329 if (BIO_printf(bp, "%02x%s", s[i], ((i + 1) == n) ? "" : ":") <= 0) 330 return 0; 331 } 332 if (BIO_write(bp, "\n", 1) != 1) 333 return 0; 334 335 return 1; 336} 337 338int X509_signature_print(BIO *bp, X509_ALGOR *sigalg, ASN1_STRING *sig) 339{ 340 int sig_nid; 341 if (BIO_puts(bp, " Signature Algorithm: ") <= 0) 342 return 0; 343 if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0) 344 return 0; 345 346 sig_nid = OBJ_obj2nid(sigalg->algorithm); 347 if (sig_nid != NID_undef) { 348 int pkey_nid, dig_nid; 349 const EVP_PKEY_ASN1_METHOD *ameth; 350 if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid)) { 351 ameth = EVP_PKEY_asn1_find(NULL, pkey_nid); 352 if (ameth && ameth->sig_print) 353 return ameth->sig_print(bp, sigalg, sig, 9, 0); 354 } 355 } 356 if (sig) 357 return X509_signature_dump(bp, sig, 9); 358 else if (BIO_puts(bp, "\n") <= 0) 359 return 0; 360 return 1; 361} 362 363int ASN1_STRING_print(BIO *bp, const ASN1_STRING *v) 364{ 365 int i, n; 366 char buf[80]; 367 const char *p; 368 369 if (v == NULL) 370 return (0); 371 n = 0; 372 p = (const char *)v->data; 373 for (i = 0; i < v->length; i++) { 374 if ((p[i] > '~') || ((p[i] < ' ') && 375 (p[i] != '\n') && (p[i] != '\r'))) 376 buf[n] = '.'; 377 else 378 buf[n] = p[i]; 379 n++; 380 if (n >= 80) { 381 if (BIO_write(bp, buf, n) <= 0) 382 return (0); 383 n = 0; 384 } 385 } 386 if (n > 0) 387 if (BIO_write(bp, buf, n) <= 0) 388 return (0); 389 return (1); 390} 391 392int ASN1_TIME_print(BIO *bp, const ASN1_TIME *tm) 393{ 394 if (tm->type == V_ASN1_UTCTIME) 395 return ASN1_UTCTIME_print(bp, tm); 396 if (tm->type == V_ASN1_GENERALIZEDTIME) 397 return ASN1_GENERALIZEDTIME_print(bp, tm); 398 BIO_write(bp, "Bad time value", 14); 399 return (0); 400} 401 402static const char *mon[12] = { 403 "Jan", "Feb", "Mar", "Apr", "May", "Jun", 404 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" 405}; 406 407int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm) 408{ 409 char *v; 410 int gmt = 0; 411 int i; 412 int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0; 413 char *f = NULL; 414 int f_len = 0; 415 416 i = tm->length; 417 v = (char *)tm->data; 418 419 if (i < 12) 420 goto err; 421 if (v[i - 1] == 'Z') 422 gmt = 1; 423 for (i = 0; i < 12; i++) 424 if ((v[i] > '9') || (v[i] < '0')) 425 goto err; 426 y = (v[0] - '0') * 1000 + (v[1] - '0') * 100 427 + (v[2] - '0') * 10 + (v[3] - '0'); 428 M = (v[4] - '0') * 10 + (v[5] - '0'); 429 if ((M > 12) || (M < 1)) 430 goto err; 431 d = (v[6] - '0') * 10 + (v[7] - '0'); 432 h = (v[8] - '0') * 10 + (v[9] - '0'); 433 m = (v[10] - '0') * 10 + (v[11] - '0'); 434 if (tm->length >= 14 && 435 (v[12] >= '0') && (v[12] <= '9') && 436 (v[13] >= '0') && (v[13] <= '9')) { 437 s = (v[12] - '0') * 10 + (v[13] - '0'); 438 /* Check for fractions of seconds. */ 439 if (tm->length >= 15 && v[14] == '.') { 440 int l = tm->length; 441 f = &v[14]; /* The decimal point. */ 442 f_len = 1; 443 while (14 + f_len < l && f[f_len] >= '0' && f[f_len] <= '9') 444 ++f_len; 445 } 446 } 447 448 if (BIO_printf(bp, "%s %2d %02d:%02d:%02d%.*s %d%s", 449 mon[M - 1], d, h, m, s, f_len, f, y, 450 (gmt) ? " GMT" : "") <= 0) 451 return (0); 452 else 453 return (1); 454 err: 455 BIO_write(bp, "Bad time value", 14); 456 return (0); 457} 458 459int ASN1_UTCTIME_print(BIO *bp, const ASN1_UTCTIME *tm) 460{ 461 const char *v; 462 int gmt = 0; 463 int i; 464 int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0; 465 466 i = tm->length; 467 v = (const char *)tm->data; 468 469 if (i < 10) 470 goto err; 471 if (v[i - 1] == 'Z') 472 gmt = 1; 473 for (i = 0; i < 10; i++) 474 if ((v[i] > '9') || (v[i] < '0')) 475 goto err; 476 y = (v[0] - '0') * 10 + (v[1] - '0'); 477 if (y < 50) 478 y += 100; 479 M = (v[2] - '0') * 10 + (v[3] - '0'); 480 if ((M > 12) || (M < 1)) 481 goto err; 482 d = (v[4] - '0') * 10 + (v[5] - '0'); 483 h = (v[6] - '0') * 10 + (v[7] - '0'); 484 m = (v[8] - '0') * 10 + (v[9] - '0'); 485 if (tm->length >= 12 && 486 (v[10] >= '0') && (v[10] <= '9') && (v[11] >= '0') && (v[11] <= '9')) 487 s = (v[10] - '0') * 10 + (v[11] - '0'); 488 489 if (BIO_printf(bp, "%s %2d %02d:%02d:%02d %d%s", 490 mon[M - 1], d, h, m, s, y + 1900, 491 (gmt) ? " GMT" : "") <= 0) 492 return (0); 493 else 494 return (1); 495 err: 496 BIO_write(bp, "Bad time value", 14); 497 return (0); 498} 499 500int X509_NAME_print(BIO *bp, X509_NAME *name, int obase) 501{ 502 char *s, *c, *b; 503 int ret = 0, l, i; 504 505 l = 80 - 2 - obase; 506 507 b = X509_NAME_oneline(name, NULL, 0); 508 if (!b) 509 return 0; 510 if (!*b) { 511 OPENSSL_free(b); 512 return 1; 513 } 514 s = b + 1; /* skip the first slash */ 515 516 c = s; 517 for (;;) { 518#ifndef CHARSET_EBCDIC 519 if (((*s == '/') && 520 ((s[1] >= 'A') && (s[1] <= 'Z') && ((s[2] == '=') || 521 ((s[2] >= 'A') 522 && (s[2] <= 'Z') 523 && (s[3] == '=')) 524 ))) || (*s == '\0')) 525#else 526 if (((*s == '/') && 527 (isupper(s[1]) && ((s[2] == '=') || 528 (isupper(s[2]) && (s[3] == '=')) 529 ))) || (*s == '\0')) 530#endif 531 { 532 i = s - c; 533 if (BIO_write(bp, c, i) != i) 534 goto err; 535 c = s + 1; /* skip following slash */ 536 if (*s != '\0') { 537 if (BIO_write(bp, ", ", 2) != 2) 538 goto err; 539 } 540 l--; 541 } 542 if (*s == '\0') 543 break; 544 s++; 545 l--; 546 } 547 548 ret = 1; 549 if (0) { 550 err: 551 X509err(X509_F_X509_NAME_PRINT, ERR_R_BUF_LIB); 552 } 553 OPENSSL_free(b); 554 return (ret); 555} 556