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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 | * ==================================================================== | |
c8ef656d DSH |
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 | static int cmac_size(const EVP_PKEY *pkey) | |
65 | { | |
66 | return EVP_MAX_BLOCK_LENGTH; | |
67 | } | |
68 | ||
69 | static void cmac_key_free(EVP_PKEY *pkey) | |
70 | { | |
71 | CMAC_CTX *cmctx = (CMAC_CTX *)pkey->pkey.ptr; | |
72 | if (cmctx) | |
73 | CMAC_CTX_free(cmctx); | |
74 | } | |
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, | |
fa1ba589 | 91 | 0,0,0,0,0,0,0, |
c8ef656d DSH |
92 | |
93 | cmac_key_free, | |
94 | 0, | |
95 | 0,0 | |
96 | }; | |
97 |