crypto/x509/t_x509.c

   1 /* crypto/x509/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 "internal/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 "internal/asn1_int.h"
  76
  77 #ifndef OPENSSL_NO_STDIO
  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                 ERR_set_mark();
 145                 l = ASN1_INTEGER_get(bs);
 146                 ERR_pop_to_mark();
 147         } else {
 148             l = -1;
 149         }
 150         if (l != -1) {
 151             if (bs->type == V_ASN1_NEG_INTEGER) {
 152                 l = -l;
 153                 neg = "-";
 154             } else
 155                 neg = "";
 156             if (BIO_printf(bp, " %s%lu (%s0x%lx)\n", neg, l, neg, l) <= 0)
 157                 goto err;
 158         } else {
 159             neg = (bs->type == V_ASN1_NEG_INTEGER) ? " (Negative)" : "";
 160             if (BIO_printf(bp, "\n%12s%s", "", neg) <= 0)
 161                 goto err;
 162
 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, &ci->signature, 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), nmindent, nmflags)
 181             < 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
 204             (bp, X509_get_subject_name(x), 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", 33) <= 0)
 211             goto err;
 212         if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
 213             goto err;
 214         if (i2a_ASN1_OBJECT(bp, ci->key->algor->algorithm) <= 0)
 215             goto err;
 216         if (BIO_puts(bp, "\n") <= 0)
 217             goto err;
 218
 219         pkey = X509_get_pubkey(x);
 220         if (pkey == NULL) {
 221             BIO_printf(bp, "%12sUnable to load Public Key\n", "");
 222             ERR_print_errors(bp);
 223         } else {
 224             EVP_PKEY_print_public(bp, pkey, 16, NULL);
 225             EVP_PKEY_free(pkey);
 226         }
 227     }
 228
 229     if (!(cflag & X509_FLAG_NO_IDS)) {
 230         if (ci->issuerUID) {
 231             if (BIO_printf(bp, "%8sIssuer Unique ID: ", "") <= 0)
 232                 goto err;
 233             if (!X509_signature_dump(bp, ci->issuerUID, 12))
 234                 goto err;
 235         }
 236         if (ci->subjectUID) {
 237             if (BIO_printf(bp, "%8sSubject Unique ID: ", "") <= 0)
 238                 goto err;
 239             if (!X509_signature_dump(bp, ci->subjectUID, 12))
 240                 goto err;
 241         }
 242     }
 243
 244     if (!(cflag & X509_FLAG_NO_EXTENSIONS))
 245         X509V3_extensions_print(bp, "X509v3 extensions",
 246                                 ci->extensions, cflag, 8);
 247
 248     if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
 249         if (X509_signature_print(bp, &x->sig_alg, x->signature) <= 0)
 250             goto err;
 251     }
 252     if (!(cflag & X509_FLAG_NO_AUX)) {
 253         if (!X509_CERT_AUX_print(bp, x->aux, 0))
 254             goto err;
 255     }
 256     ret = 1;
 257  err:
 258     OPENSSL_free(m);
 259     return (ret);
 260 }
 261
 262 int X509_ocspid_print(BIO *bp, X509 *x)
 263 {
 264     unsigned char *der = NULL;
 265     unsigned char *dertmp;
 266     int derlen;
 267     int i;
 268     unsigned char SHA1md[SHA_DIGEST_LENGTH];
 269
 270     /*
 271      * display the hash of the subject as it would appear in OCSP requests
 272      */
 273     if (BIO_printf(bp, "        Subject OCSP hash: ") <= 0)
 274         goto err;
 275     derlen = i2d_X509_NAME(x->cert_info.subject, NULL);
 276     if ((der = dertmp = OPENSSL_malloc(derlen)) == NULL)
 277         goto err;
 278     i2d_X509_NAME(x->cert_info.subject, &dertmp);
 279
 280     if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL))
 281         goto err;
 282     for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
 283         if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
 284             goto err;
 285     }
 286     OPENSSL_free(der);
 287     der = NULL;
 288
 289     /*
 290      * display the hash of the public key as it would appear in OCSP requests
 291      */
 292     if (BIO_printf(bp, "\n        Public key OCSP hash: ") <= 0)
 293         goto err;
 294
 295     if (!EVP_Digest(x->cert_info.key->public_key->data,
 296                     x->cert_info.key->public_key->length,
 297                     SHA1md, NULL, EVP_sha1(), NULL))
 298         goto err;
 299     for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
 300         if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
 301             goto err;
 302     }
 303     BIO_printf(bp, "\n");
 304
 305     return (1);
 306  err:
 307     OPENSSL_free(der);
 308     return (0);
 309 }
 310
 311 int X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent)
 312 {
 313     const unsigned char *s;
 314     int i, n;
 315
 316     n = sig->length;
 317     s = sig->data;
 318     for (i = 0; i < n; i++) {
 319         if ((i % 18) == 0) {
 320             if (BIO_write(bp, "\n", 1) <= 0)
 321                 return 0;
 322             if (BIO_indent(bp, indent, indent) <= 0)
 323                 return 0;
 324         }
 325         if (BIO_printf(bp, "%02x%s", s[i], ((i + 1) == n) ? "" : ":") <= 0)
 326             return 0;
 327     }
 328     if (BIO_write(bp, "\n", 1) != 1)
 329         return 0;
 330
 331     return 1;
 332 }
 333
 334 int X509_signature_print(BIO *bp, X509_ALGOR *sigalg, ASN1_STRING *sig)
 335 {
 336     int sig_nid;
 337     if (BIO_puts(bp, "    Signature Algorithm: ") <= 0)
 338         return 0;
 339     if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0)
 340         return 0;
 341
 342     sig_nid = OBJ_obj2nid(sigalg->algorithm);
 343     if (sig_nid != NID_undef) {
 344         int pkey_nid, dig_nid;
 345         const EVP_PKEY_ASN1_METHOD *ameth;
 346         if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid)) {
 347             ameth = EVP_PKEY_asn1_find(NULL, pkey_nid);
 348             if (ameth && ameth->sig_print)
 349                 return ameth->sig_print(bp, sigalg, sig, 9, 0);
 350         }
 351     }
 352     if (sig)
 353         return X509_signature_dump(bp, sig, 9);
 354     else if (BIO_puts(bp, "\n") <= 0)
 355         return 0;
 356     return 1;
 357 }