crypto/x509/x509type.c

   1 /* crypto/x509/x509type.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/evp.h>
  62 #include <openssl/objects.h>
  63 #include <openssl/x509.h>
  64
  65 int X509_certificate_type(X509 *x, EVP_PKEY *pkey)
  66 {
  67     EVP_PKEY *pk;
  68     int ret = 0, i;
  69
  70     if (x == NULL)
  71         return (0);
  72
  73     if (pkey == NULL)
  74         pk = X509_get0_pubkey(x);
  75     else
  76         pk = pkey;
  77
  78     if (pk == NULL)
  79         return (0);
  80
  81     switch (EVP_PKEY_id(pk)) {
  82     case EVP_PKEY_RSA:
  83         ret = EVP_PK_RSA | EVP_PKT_SIGN;
  84 /*              if (!sign only extension) */
  85         ret |= EVP_PKT_ENC;
  86         break;
  87     case EVP_PKEY_DSA:
  88         ret = EVP_PK_DSA | EVP_PKT_SIGN;
  89         break;
  90     case EVP_PKEY_EC:
  91         ret = EVP_PK_EC | EVP_PKT_SIGN | EVP_PKT_EXCH;
  92         break;
  93     case EVP_PKEY_DH:
  94         ret = EVP_PK_DH | EVP_PKT_EXCH;
  95         break;
  96     case NID_id_GostR3410_2001:
  97     case NID_id_GostR3410_2012_256:
  98     case NID_id_GostR3410_2012_512:
  99         ret = EVP_PKT_EXCH | EVP_PKT_SIGN;
 100         break;
 101     default:
 102         break;
 103     }
 104
 105     i = X509_get_signature_nid(x);
 106     if (i && OBJ_find_sigid_algs(i, NULL, &i)) {
 107
 108         switch (i) {
 109         case NID_rsaEncryption:
 110         case NID_rsa:
 111             ret |= EVP_PKS_RSA;
 112             break;
 113         case NID_dsa:
 114         case NID_dsa_2:
 115             ret |= EVP_PKS_DSA;
 116             break;
 117         case NID_X9_62_id_ecPublicKey:
 118             ret |= EVP_PKS_EC;
 119             break;
 120         default:
 121             break;
 122         }
 123     }
 124
 125     return (ret);
 126 }