crypto/x509/t_x509.c

   1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   2  * All rights reserved.
   3  *
   4  * This package is an SSL implementation written
   5  * by Eric Young (eay@cryptsoft.com).
   6  * The implementation was written so as to conform with Netscapes SSL.
   7  *
   8  * This library is free for commercial and non-commercial use as long as
   9  * the following conditions are aheared to.  The following conditions
  10  * apply to all code found in this distribution, be it the RC4, RSA,
  11  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  12  * included with this distribution is covered by the same copyright terms
  13  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  14  *
  15  * Copyright remains Eric Young's, and as such any Copyright notices in
  16  * the code are not to be removed.
  17  * If this package is used in a product, Eric Young should be given attribution
  18  * as the author of the parts of the library used.
  19  * This can be in the form of a textual message at program startup or
  20  * in documentation (online or textual) provided with the package.
  21  *
  22  * Redistribution and use in source and binary forms, with or without
  23  * modification, are permitted provided that the following conditions
  24  * are met:
  25  * 1. Redistributions of source code must retain the copyright
  26  *    notice, this list of conditions and the following disclaimer.
  27  * 2. Redistributions in binary form must reproduce the above copyright
  28  *    notice, this list of conditions and the following disclaimer in the
  29  *    documentation and/or other materials provided with the distribution.
  30  * 3. All advertising materials mentioning features or use of this software
  31  *    must display the following acknowledgement:
  32  *    "This product includes cryptographic software written by
  33  *     Eric Young (eay@cryptsoft.com)"
  34  *    The word 'cryptographic' can be left out if the rouines from the library
  35  *    being used are not cryptographic related :-).
  36  * 4. If you include any Windows specific code (or a derivative thereof) from
  37  *    the apps directory (application code) you must include an acknowledgement:
  38  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  50  * SUCH DAMAGE.
  51  *
  52  * The licence and distribution terms for any publically available version or
  53  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  54  * copied and put under another distribution licence
  55  * [including the GNU Public Licence.]
  56  */
  57
  58 #include <stdio.h>
  59 #include "internal/cryptlib.h"
  60 #include <openssl/buffer.h>
  61 #include <openssl/bn.h>
  62 #include <openssl/objects.h>
  63 #include <openssl/x509.h>
  64 #include <openssl/x509v3.h>
  65 #include "internal/asn1_int.h"
  66
  67 #ifndef OPENSSL_NO_STDIO
  68 int X509_print_fp(FILE *fp, X509 *x)
  69 {
  70     return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
  71 }
  72
  73 int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag,
  74                      unsigned long cflag)
  75 {
  76     BIO *b;
  77     int ret;
  78
  79     if ((b = BIO_new(BIO_s_file())) == NULL) {
  80         X509err(X509_F_X509_PRINT_EX_FP, ERR_R_BUF_LIB);
  81         return (0);
  82     }
  83     BIO_set_fp(b, fp, BIO_NOCLOSE);
  84     ret = X509_print_ex(b, x, nmflag, cflag);
  85     BIO_free(b);
  86     return (ret);
  87 }
  88 #endif
  89
  90 int X509_print(BIO *bp, X509 *x)
  91 {
  92     return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
  93 }
  94
  95 int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags,
  96                   unsigned long cflag)
  97 {
  98     long l;
  99     int ret = 0, i;
 100     char *m = NULL, mlch = ' ';
 101     int nmindent = 0;
 102     ASN1_INTEGER *bs;
 103     EVP_PKEY *pkey = NULL;
 104     const char *neg;
 105
 106     if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
 107         mlch = '\n';
 108         nmindent = 12;
 109     }
 110
 111     if (nmflags == X509_FLAG_COMPAT)
 112         nmindent = 16;
 113
 114     if (!(cflag & X509_FLAG_NO_HEADER)) {
 115         if (BIO_write(bp, "Certificate:\n", 13) <= 0)
 116             goto err;
 117         if (BIO_write(bp, "    Data:\n", 10) <= 0)
 118             goto err;
 119     }
 120     if (!(cflag & X509_FLAG_NO_VERSION)) {
 121         l = X509_get_version(x);
 122         if (BIO_printf(bp, "%8sVersion: %lu (0x%lx)\n", "", l + 1, l) <= 0)
 123             goto err;
 124     }
 125     if (!(cflag & X509_FLAG_NO_SERIAL)) {
 126
 127         if (BIO_write(bp, "        Serial Number:", 22) <= 0)
 128             goto err;
 129
 130         bs = X509_get_serialNumber(x);
 131         if (bs->length <= (int)sizeof(long)) {
 132                 ERR_set_mark();
 133                 l = ASN1_INTEGER_get(bs);
 134                 ERR_pop_to_mark();
 135         } else {
 136             l = -1;
 137         }
 138         if (l != -1) {
 139             if (bs->type == V_ASN1_NEG_INTEGER) {
 140                 l = -l;
 141                 neg = "-";
 142             } else
 143                 neg = "";
 144             if (BIO_printf(bp, " %s%lu (%s0x%lx)\n", neg, l, neg, l) <= 0)
 145                 goto err;
 146         } else {
 147             neg = (bs->type == V_ASN1_NEG_INTEGER) ? " (Negative)" : "";
 148             if (BIO_printf(bp, "\n%12s%s", "", neg) <= 0)
 149                 goto err;
 150
 151             for (i = 0; i < bs->length; i++) {
 152                 if (BIO_printf(bp, "%02x%c", bs->data[i],
 153                                ((i + 1 == bs->length) ? '\n' : ':')) <= 0)
 154                     goto err;
 155             }
 156         }
 157
 158     }
 159
 160     if (!(cflag & X509_FLAG_NO_SIGNAME)) {
 161         X509_ALGOR *tsig_alg = X509_get0_tbs_sigalg(x);
 162         if (X509_signature_print(bp, tsig_alg, NULL) <= 0)
 163             goto err;
 164     }
 165
 166     if (!(cflag & X509_FLAG_NO_ISSUER)) {
 167         if (BIO_printf(bp, "        Issuer:%c", mlch) <= 0)
 168             goto err;
 169         if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), nmindent, nmflags)
 170             < 0)
 171             goto err;
 172         if (BIO_write(bp, "\n", 1) <= 0)
 173             goto err;
 174     }
 175     if (!(cflag & X509_FLAG_NO_VALIDITY)) {
 176         if (BIO_write(bp, "        Validity\n", 17) <= 0)
 177             goto err;
 178         if (BIO_write(bp, "            Not Before: ", 24) <= 0)
 179             goto err;
 180         if (!ASN1_TIME_print(bp, X509_get_notBefore(x)))
 181             goto err;
 182         if (BIO_write(bp, "\n            Not After : ", 25) <= 0)
 183             goto err;
 184         if (!ASN1_TIME_print(bp, X509_get_notAfter(x)))
 185             goto err;
 186         if (BIO_write(bp, "\n", 1) <= 0)
 187             goto err;
 188     }
 189     if (!(cflag & X509_FLAG_NO_SUBJECT)) {
 190         if (BIO_printf(bp, "        Subject:%c", mlch) <= 0)
 191             goto err;
 192         if (X509_NAME_print_ex
 193             (bp, X509_get_subject_name(x), nmindent, nmflags) < 0)
 194             goto err;
 195         if (BIO_write(bp, "\n", 1) <= 0)
 196             goto err;
 197     }
 198     if (!(cflag & X509_FLAG_NO_PUBKEY)) {
 199         X509_PUBKEY *xpkey = X509_get_X509_PUBKEY(x);
 200         ASN1_OBJECT *xpoid;
 201         X509_PUBKEY_get0_param(&xpoid, NULL, NULL, NULL, xpkey);
 202         if (BIO_write(bp, "        Subject Public Key Info:\n", 33) <= 0)
 203             goto err;
 204         if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
 205             goto err;
 206         if (i2a_ASN1_OBJECT(bp, xpoid) <= 0)
 207             goto err;
 208         if (BIO_puts(bp, "\n") <= 0)
 209             goto err;
 210
 211         pkey = X509_get0_pubkey(x);
 212         if (pkey == NULL) {
 213             BIO_printf(bp, "%12sUnable to load Public Key\n", "");
 214             ERR_print_errors(bp);
 215         } else {
 216             EVP_PKEY_print_public(bp, pkey, 16, NULL);
 217         }
 218     }
 219
 220     if (!(cflag & X509_FLAG_NO_IDS)) {
 221         ASN1_BIT_STRING *iuid, *suid;
 222         X509_get0_uids(&iuid, &suid, x);
 223         if (iuid != NULL) {
 224             if (BIO_printf(bp, "%8sIssuer Unique ID: ", "") <= 0)
 225                 goto err;
 226             if (!X509_signature_dump(bp, iuid, 12))
 227                 goto err;
 228         }
 229         if (suid != NULL) {
 230             if (BIO_printf(bp, "%8sSubject Unique ID: ", "") <= 0)
 231                 goto err;
 232             if (!X509_signature_dump(bp, suid, 12))
 233                 goto err;
 234         }
 235     }
 236
 237     if (!(cflag & X509_FLAG_NO_EXTENSIONS))
 238         X509V3_extensions_print(bp, "X509v3 extensions",
 239                                 X509_get0_extensions(x), cflag, 8);
 240
 241     if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
 242         X509_ALGOR *sig_alg;
 243         ASN1_BIT_STRING *sig;
 244         X509_get0_signature(&sig, &sig_alg, x);
 245         if (X509_signature_print(bp, sig_alg, sig) <= 0)
 246             goto err;
 247     }
 248     if (!(cflag & X509_FLAG_NO_AUX)) {
 249         if (!X509_aux_print(bp, x, 0))
 250             goto err;
 251     }
 252     ret = 1;
 253  err:
 254     OPENSSL_free(m);
 255     return (ret);
 256 }
 257
 258 int X509_ocspid_print(BIO *bp, X509 *x)
 259 {
 260     unsigned char *der = NULL;
 261     unsigned char *dertmp;
 262     int derlen;
 263     int i;
 264     unsigned char SHA1md[SHA_DIGEST_LENGTH];
 265     ASN1_BIT_STRING *keybstr;
 266     X509_NAME *subj;
 267
 268     /*
 269      * display the hash of the subject as it would appear in OCSP requests
 270      */
 271     if (BIO_printf(bp, "        Subject OCSP hash: ") <= 0)
 272         goto err;
 273     subj = X509_get_subject_name(x);
 274     derlen = i2d_X509_NAME(subj, NULL);
 275     if ((der = dertmp = OPENSSL_malloc(derlen)) == NULL)
 276         goto err;
 277     i2d_X509_NAME(subj, &dertmp);
 278
 279     if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL))
 280         goto err;
 281     for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
 282         if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
 283             goto err;
 284     }
 285     OPENSSL_free(der);
 286     der = NULL;
 287
 288     /*
 289      * display the hash of the public key as it would appear in OCSP requests
 290      */
 291     if (BIO_printf(bp, "\n        Public key OCSP hash: ") <= 0)
 292         goto err;
 293
 294     keybstr = X509_get0_pubkey_bitstr(x);
 295
 296     if (keybstr == NULL)
 297         goto err;
 298
 299     if (!EVP_Digest(ASN1_STRING_data(keybstr), ASN1_STRING_length(keybstr),
 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     OPENSSL_free(der);
 311     return (0);
 312 }
 313
 314 int X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent)
 315 {
 316     const unsigned char *s;
 317     int i, n;
 318
 319     n = sig->length;
 320     s = sig->data;
 321     for (i = 0; i < n; i++) {
 322         if ((i % 18) == 0) {
 323             if (BIO_write(bp, "\n", 1) <= 0)
 324                 return 0;
 325             if (BIO_indent(bp, indent, indent) <= 0)
 326                 return 0;
 327         }
 328         if (BIO_printf(bp, "%02x%s", s[i], ((i + 1) == n) ? "" : ":") <= 0)
 329             return 0;
 330     }
 331     if (BIO_write(bp, "\n", 1) != 1)
 332         return 0;
 333
 334     return 1;
 335 }
 336
 337 int X509_signature_print(BIO *bp, X509_ALGOR *sigalg, ASN1_STRING *sig)
 338 {
 339     int sig_nid;
 340     if (BIO_puts(bp, "    Signature Algorithm: ") <= 0)
 341         return 0;
 342     if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0)
 343         return 0;
 344
 345     sig_nid = OBJ_obj2nid(sigalg->algorithm);
 346     if (sig_nid != NID_undef) {
 347         int pkey_nid, dig_nid;
 348         const EVP_PKEY_ASN1_METHOD *ameth;
 349         if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid)) {
 350             ameth = EVP_PKEY_asn1_find(NULL, pkey_nid);
 351             if (ameth && ameth->sig_print)
 352                 return ameth->sig_print(bp, sigalg, sig, 9, 0);
 353         }
 354     }
 355     if (sig)
 356         return X509_signature_dump(bp, sig, 9);
 357     else if (BIO_puts(bp, "\n") <= 0)
 358         return 0;
 359     return 1;
 360 }
 361
 362 int X509_aux_print(BIO *out, X509 *x, int indent)
 363 {
 364     char oidstr[80], first;
 365     STACK_OF(ASN1_OBJECT) *trust, *reject;
 366     const unsigned char *alias, *keyid;
 367     int keyidlen;
 368     int i;
 369     if (X509_trusted(x) == 0)
 370         return 1;
 371     trust = X509_get0_trust_objects(x);
 372     reject = X509_get0_reject_objects(x);
 373     if (trust) {
 374         first = 1;
 375         BIO_printf(out, "%*sTrusted Uses:\n%*s", indent, "", indent + 2, "");
 376         for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
 377             if (!first)
 378                 BIO_puts(out, ", ");
 379             else
 380                 first = 0;
 381             OBJ_obj2txt(oidstr, sizeof oidstr,
 382                         sk_ASN1_OBJECT_value(trust, i), 0);
 383             BIO_puts(out, oidstr);
 384         }
 385         BIO_puts(out, "\n");
 386     } else
 387         BIO_printf(out, "%*sNo Trusted Uses.\n", indent, "");
 388     if (reject) {
 389         first = 1;
 390         BIO_printf(out, "%*sRejected Uses:\n%*s", indent, "", indent + 2, "");
 391         for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
 392             if (!first)
 393                 BIO_puts(out, ", ");
 394             else
 395                 first = 0;
 396             OBJ_obj2txt(oidstr, sizeof oidstr,
 397                         sk_ASN1_OBJECT_value(reject, i), 0);
 398             BIO_puts(out, oidstr);
 399         }
 400         BIO_puts(out, "\n");
 401     } else
 402         BIO_printf(out, "%*sNo Rejected Uses.\n", indent, "");
 403     alias = X509_alias_get0(x, NULL);
 404     if (alias)
 405         BIO_printf(out, "%*sAlias: %s\n", indent, "", alias);
 406     keyid = X509_keyid_get0(x, &keyidlen);
 407     if (keyid) {
 408         BIO_printf(out, "%*sKey Id: ", indent, "");
 409         for (i = 0; i < keyidlen; i++)
 410             BIO_printf(out, "%s%02X", i ? ":" : "", keyid[i]);
 411         BIO_write(out, "\n", 1);
 412     }
 413     return 1;
 414 }