x509type.c revision 296341 
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 "cryptlib.h"
61#include <openssl/evp.h>
62#include <openssl/objects.h>
63#include <openssl/x509.h>
64
65int 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_get_pubkey(x);
75    else
76        pk = pkey;
77
78    if (pk == NULL)
79        return (0);
80
81    switch (pk->type) {
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_94:
97    case NID_id_GostR3410_2001:
98        ret = EVP_PKT_EXCH | EVP_PKT_SIGN;
99        break;
100    default:
101        break;
102    }
103
104    i = OBJ_obj2nid(x->sig_alg->algorithm);
105    if (i && OBJ_find_sigid_algs(i, NULL, &i)) {
106
107        switch (i) {
108        case NID_rsaEncryption:
109        case NID_rsa:
110            ret |= EVP_PKS_RSA;
111            break;
112        case NID_dsa:
113        case NID_dsa_2:
114            ret |= EVP_PKS_DSA;
115            break;
116        case NID_X9_62_id_ecPublicKey:
117            ret |= EVP_PKS_EC;
118            break;
119        default:
120            break;
121        }
122    }
123
124    if (pkey == NULL)
125        EVP_PKEY_free(pk);
126    return (ret);
127}
128