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Commit | Line | Data |
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0f113f3e | 1 | /* |
b8d77c9b | 2 | * Copyright 2010-2018 The OpenSSL Project Authors. All Rights Reserved. |
c8ef656d | 3 | * |
8de396f8 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
4f22f405 RS |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
c8ef656d DSH |
8 | */ |
9 | ||
10 | #include <stdio.h> | |
b39fc560 | 11 | #include "internal/cryptlib.h" |
c8ef656d | 12 | #include <openssl/evp.h> |
5fe736e5 | 13 | #include "internal/asn1_int.h" |
c8ef656d | 14 | |
0f113f3e MC |
15 | /* |
16 | * CMAC "ASN1" method. This is just here to indicate the maximum CMAC output | |
17 | * length and to free up a CMAC key. | |
c8ef656d DSH |
18 | */ |
19 | ||
20 | static int cmac_size(const EVP_PKEY *pkey) | |
0f113f3e MC |
21 | { |
22 | return EVP_MAX_BLOCK_LENGTH; | |
23 | } | |
c8ef656d DSH |
24 | |
25 | static void cmac_key_free(EVP_PKEY *pkey) | |
0f113f3e | 26 | { |
b8d77c9b | 27 | EVP_MAC_CTX *cmctx = EVP_PKEY_get0(pkey); |
e74bd290 RL |
28 | EVP_MAC *mac = cmctx == NULL ? NULL : EVP_MAC_CTX_mac(cmctx); |
29 | ||
b8d77c9b | 30 | EVP_MAC_CTX_free(cmctx); |
e74bd290 | 31 | EVP_MAC_free(mac); |
0f113f3e | 32 | } |
c8ef656d | 33 | |
0f113f3e MC |
34 | const EVP_PKEY_ASN1_METHOD cmac_asn1_meth = { |
35 | EVP_PKEY_CMAC, | |
36 | EVP_PKEY_CMAC, | |
37 | 0, | |
c8ef656d | 38 | |
0f113f3e MC |
39 | "CMAC", |
40 | "OpenSSL CMAC method", | |
c8ef656d | 41 | |
0f113f3e | 42 | 0, 0, 0, 0, |
c8ef656d | 43 | |
0f113f3e | 44 | 0, 0, 0, |
c8ef656d | 45 | |
0f113f3e MC |
46 | cmac_size, |
47 | 0, 0, | |
48 | 0, 0, 0, 0, 0, 0, 0, | |
c8ef656d | 49 | |
0f113f3e MC |
50 | cmac_key_free, |
51 | 0, | |
52 | 0, 0 | |
53 | }; |