crypto/x509/x509type.c

   1 /* crypto/x509/x509type.c */
   2 /* Copyright (C) 1995-1997 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 "evp.h"
  62 #include "objects.h"
  63 #include "x509.h"
  64
  65 int X509_certificate_type(x,pkey)
  66 X509 *x;
  67 EVP_PKEY *pkey;
  68         {
  69         EVP_PKEY *pk;
  70         int ret=0,i;
  71
  72         if (x == NULL) return(0);
  73
  74         if (pkey == NULL)
  75                 pk=X509_get_pubkey(x);
  76         else
  77                 pk=pkey;
  78
  79         if (pk == NULL) return(0);
  80
  81         switch (pk->type)
  82                 {
  83         case EVP_PKEY_RSA:
  84                 ret=EVP_PK_RSA|EVP_PKT_SIGN;
  85 /*              if (!sign only extension) */
  86                         ret|=EVP_PKT_ENC;
  87         break;
  88         case EVP_PKEY_DSA:
  89                 ret=EVP_PK_DSA|EVP_PKT_SIGN;
  90                 break;
  91         case EVP_PKEY_DH:
  92                 ret=EVP_PK_DH|EVP_PKT_EXCH;
  93                 break;
  94         default:
  95                 break;
  96                 }
  97
  98         i=X509_get_signature_type(x);
  99         switch (i)
 100                 {
 101         case EVP_PKEY_RSA:
 102                 ret|=EVP_PKS_RSA;
 103                 break;
 104         case EVP_PKS_DSA:
 105                 ret|=EVP_PKS_DSA;
 106                 break;
 107         default:
 108                 break;
 109                 }
 110
 111         if (EVP_PKEY_size(pkey) <= 512)
 112                 ret|=EVP_PKT_EXP;
 113         return(ret);
 114         }
 115