1/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
2 * All rights reserved.
3 *
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
7 *
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to.  The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
14 *
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
21 *
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
24 * are met:
25 * 1. Redistributions of source code must retain the copyright
26 *    notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 *    notice, this list of conditions and the following disclaimer in the
29 *    documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 *    must display the following acknowledgement:
32 *    "This product includes cryptographic software written by
33 *     Eric Young (eay@cryptsoft.com)"
34 *    The word 'cryptographic' can be left out if the rouines from the library
35 *    being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 *    the apps directory (application code) you must include an acknowledgement:
38 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * SUCH DAMAGE.
51 *
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed.  i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.] */
56
57#include <openssl/evp.h>
58#include <openssl/obj.h>
59#include <openssl/x509.h>
60
61
62int X509_certificate_type(X509 *x, EVP_PKEY *pkey)
63	{
64	EVP_PKEY *pk;
65	int ret=0,i;
66
67	if (x == NULL) return(0);
68
69	if (pkey == NULL)
70		pk=X509_get_pubkey(x);
71	else
72		pk=pkey;
73
74	if (pk == NULL) return(0);
75
76	switch (pk->type)
77		{
78	case EVP_PKEY_RSA:
79		ret=EVP_PK_RSA|EVP_PKT_SIGN;
80/*		if (!sign only extension) */
81			ret|=EVP_PKT_ENC;
82	break;
83	case EVP_PKEY_DSA:
84		ret=EVP_PK_DSA|EVP_PKT_SIGN;
85		break;
86	case EVP_PKEY_EC:
87		ret=EVP_PK_EC|EVP_PKT_SIGN|EVP_PKT_EXCH;
88		break;
89	case EVP_PKEY_DH:
90		ret=EVP_PK_DH|EVP_PKT_EXCH;
91		break;
92	case NID_id_GostR3410_94:
93	case NID_id_GostR3410_2001:
94		ret=EVP_PKT_EXCH|EVP_PKT_SIGN;
95		break;
96	default:
97		break;
98		}
99
100	i=OBJ_obj2nid(x->sig_alg->algorithm);
101	if (i && OBJ_find_sigid_algs(i, NULL, &i))
102		{
103
104		switch (i)
105			{
106		case NID_rsaEncryption:
107		case NID_rsa:
108			ret|=EVP_PKS_RSA;
109			break;
110		case NID_dsa:
111		case NID_dsa_2:
112			ret|=EVP_PKS_DSA;
113			break;
114		case NID_X9_62_id_ecPublicKey:
115			ret|=EVP_PKS_EC;
116			break;
117		default:
118			break;
119			}
120		}
121
122	if (EVP_PKEY_size(pk) <= 1024/8)/* /8 because it's 1024 bits we look
123					   for, not bytes */
124		ret|=EVP_PKT_EXP;
125	if(pkey==NULL) EVP_PKEY_free(pk);
126	return(ret);
127	}
128
129