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) return(0);
71
72	if (pkey == NULL)
73		pk=X509_get_pubkey(x);
74	else
75		pk=pkey;
76
77	if (pk == NULL) return(0);
78
79	switch (pk->type)
80		{
81	case EVP_PKEY_RSA:
82		ret=EVP_PK_RSA|EVP_PKT_SIGN;
83/*		if (!sign only extension) */
84			ret|=EVP_PKT_ENC;
85	break;
86	case EVP_PKEY_DSA:
87		ret=EVP_PK_DSA|EVP_PKT_SIGN;
88		break;
89	case EVP_PKEY_EC:
90		ret=EVP_PK_EC|EVP_PKT_SIGN|EVP_PKT_EXCH;
91		break;
92	case EVP_PKEY_DH:
93		ret=EVP_PK_DH|EVP_PKT_EXCH;
94		break;
95	case NID_id_GostR3410_94:
96	case NID_id_GostR3410_2001:
97		ret=EVP_PKT_EXCH|EVP_PKT_SIGN;
98		break;
99	default:
100		break;
101		}
102
103	i=OBJ_obj2nid(x->sig_alg->algorithm);
104	if (i && OBJ_find_sigid_algs(i, NULL, &i))
105		{
106
107		switch (i)
108			{
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	if (EVP_PKEY_size(pk) <= 1024/8)/* /8 because it's 1024 bits we look
126					   for, not bytes */
127		ret|=EVP_PKT_EXP;
128	if(pkey==NULL) EVP_PKEY_free(pk);
129	return(ret);
130	}
131
132