mirror of https://github.com/openssl/openssl.git
60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
/*
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* Copyright 2010-2020 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/*
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* CMAC low level APIs are deprecated for public use, but still ok for internal
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* use.
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*/
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#include "internal/deprecated.h"
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#include <stdio.h>
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#include "internal/cryptlib.h"
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#include <openssl/evp.h>
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#include "crypto/asn1.h"
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/*
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* CMAC "ASN1" method. This is just here to indicate the maximum CMAC output
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* length and to free up a CMAC key.
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*/
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static int cmac_size(const EVP_PKEY *pkey)
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{
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return EVP_MAX_BLOCK_LENGTH;
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}
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static void cmac_key_free(EVP_PKEY *pkey)
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{
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EVP_MAC_CTX *cmctx = EVP_PKEY_get0(pkey);
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EVP_MAC *mac = cmctx == NULL ? NULL : EVP_MAC_CTX_mac(cmctx);
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EVP_MAC_CTX_free(cmctx);
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EVP_MAC_free(mac);
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}
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const EVP_PKEY_ASN1_METHOD cmac_asn1_meth = {
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EVP_PKEY_CMAC,
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EVP_PKEY_CMAC,
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0,
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"CMAC",
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"OpenSSL CMAC method",
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0, 0, 0, 0,
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0, 0, 0,
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cmac_size,
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0, 0,
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0, 0, 0, 0, 0, 0, 0,
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cmac_key_free,
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0,
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0, 0
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};
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