names.c revision 296465 
1/* crypto/evp/names.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 EVP_add_cipher(const EVP_CIPHER *c)
66{
67    int r;
68
69#ifdef OPENSSL_FIPS
70    OPENSSL_init();
71#endif
72
73    r = OBJ_NAME_add(OBJ_nid2sn(c->nid), OBJ_NAME_TYPE_CIPHER_METH,
74                     (const char *)c);
75    if (r == 0)
76        return (0);
77    r = OBJ_NAME_add(OBJ_nid2ln(c->nid), OBJ_NAME_TYPE_CIPHER_METH,
78                     (const char *)c);
79    return (r);
80}
81
82int EVP_add_digest(const EVP_MD *md)
83{
84    int r;
85    const char *name;
86
87#ifdef OPENSSL_FIPS
88    OPENSSL_init();
89#endif
90    name = OBJ_nid2sn(md->type);
91    r = OBJ_NAME_add(name, OBJ_NAME_TYPE_MD_METH, (const char *)md);
92    if (r == 0)
93        return (0);
94    r = OBJ_NAME_add(OBJ_nid2ln(md->type), OBJ_NAME_TYPE_MD_METH,
95                     (const char *)md);
96    if (r == 0)
97        return (0);
98
99    if (md->pkey_type && md->type != md->pkey_type) {
100        r = OBJ_NAME_add(OBJ_nid2sn(md->pkey_type),
101                         OBJ_NAME_TYPE_MD_METH | OBJ_NAME_ALIAS, name);
102        if (r == 0)
103            return (0);
104        r = OBJ_NAME_add(OBJ_nid2ln(md->pkey_type),
105                         OBJ_NAME_TYPE_MD_METH | OBJ_NAME_ALIAS, name);
106    }
107    return (r);
108}
109
110const EVP_CIPHER *EVP_get_cipherbyname(const char *name)
111{
112    const EVP_CIPHER *cp;
113
114    cp = (const EVP_CIPHER *)OBJ_NAME_get(name, OBJ_NAME_TYPE_CIPHER_METH);
115    return (cp);
116}
117
118const EVP_MD *EVP_get_digestbyname(const char *name)
119{
120    const EVP_MD *cp;
121
122    cp = (const EVP_MD *)OBJ_NAME_get(name, OBJ_NAME_TYPE_MD_METH);
123    return (cp);
124}
125
126void EVP_cleanup(void)
127{
128    OBJ_NAME_cleanup(OBJ_NAME_TYPE_CIPHER_METH);
129    OBJ_NAME_cleanup(OBJ_NAME_TYPE_MD_METH);
130    /*
131     * The above calls will only clean out the contents of the name hash
132     * table, but not the hash table itself.  The following line does that
133     * part.  -- Richard Levitte
134     */
135    OBJ_NAME_cleanup(-1);
136
137    EVP_PBE_cleanup();
138}
139