Branch data Line data Source code
1 : : /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
2 : : * project 2010.
3 : : */
4 : : /* ====================================================================
5 : : * Copyright (c) 2010 The OpenSSL Project. All rights reserved.
6 : : *
7 : : * Redistribution and use in source and binary forms, with or without
8 : : * modification, are permitted provided that the following conditions
9 : : * are met:
10 : : *
11 : : * 1. Redistributions of source code must retain the above copyright
12 : : * notice, this list of conditions and the following disclaimer.
13 : : *
14 : : * 2. Redistributions in binary form must reproduce the above copyright
15 : : * notice, this list of conditions and the following disclaimer in
16 : : * the documentation and/or other materials provided with the
17 : : * distribution.
18 : : *
19 : : * 3. All advertising materials mentioning features or use of this
20 : : * software must display the following acknowledgment:
21 : : * "This product includes software developed by the OpenSSL Project
22 : : * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
23 : : *
24 : : * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
25 : : * endorse or promote products derived from this software without
26 : : * prior written permission. For written permission, please contact
27 : : * licensing@OpenSSL.org.
28 : : *
29 : : * 5. Products derived from this software may not be called "OpenSSL"
30 : : * nor may "OpenSSL" appear in their names without prior written
31 : : * permission of the OpenSSL Project.
32 : : *
33 : : * 6. Redistributions of any form whatsoever must retain the following
34 : : * acknowledgment:
35 : : * "This product includes software developed by the OpenSSL Project
36 : : * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
37 : : *
38 : : * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
39 : : * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 : : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
41 : : * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
42 : : * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 : : * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
44 : : * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
45 : : * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
46 : : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
47 : : * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
48 : : * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
49 : : * OF THE POSSIBILITY OF SUCH DAMAGE.
50 : : * ====================================================================
51 : : */
52 : :
53 : : #include <stdio.h>
54 : : #include "cryptlib.h"
55 : : #include <openssl/evp.h>
56 : : #include <openssl/cmac.h>
57 : : #include "asn1_locl.h"
58 : :
59 : : /* CMAC "ASN1" method. This is just here to indicate the
60 : : * maximum CMAC output length and to free up a CMAC
61 : : * key.
62 : : */
63 : :
64 : 0 : static int cmac_size(const EVP_PKEY *pkey)
65 : : {
66 : 0 : return EVP_MAX_BLOCK_LENGTH;
67 : : }
68 : :
69 : 0 : static void cmac_key_free(EVP_PKEY *pkey)
70 : : {
71 : 0 : CMAC_CTX *cmctx = (CMAC_CTX *)pkey->pkey.ptr;
72 [ # # ]: 0 : if (cmctx)
73 : 0 : CMAC_CTX_free(cmctx);
74 : 0 : }
75 : :
76 : : const EVP_PKEY_ASN1_METHOD cmac_asn1_meth =
77 : : {
78 : : EVP_PKEY_CMAC,
79 : : EVP_PKEY_CMAC,
80 : : 0,
81 : :
82 : : "CMAC",
83 : : "OpenSSL CMAC method",
84 : :
85 : : 0,0,0,0,
86 : :
87 : : 0,0,0,
88 : :
89 : : cmac_size,
90 : : 0, 0,
91 : : 0,0,0,0,0,0,0,
92 : :
93 : : cmac_key_free,
94 : : 0,
95 : : 0,0
96 : : };
97 : :
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