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- /*
- * Copyright 2010-2018 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the Apache License 2.0 (the "License"). You may not use
- * this file except in compliance with the License. You can obtain a copy
- * in the file LICENSE in the source distribution or at
- * https://www.openssl.org/source/license.html
- */
- #include <stdio.h>
- #include "internal/cryptlib.h"
- #include <openssl/evp.h>
- #include "internal/asn1_int.h"
- /*
- * CMAC "ASN1" method. This is just here to indicate the maximum CMAC output
- * length and to free up a CMAC key.
- */
- static int cmac_size(const EVP_PKEY *pkey)
- {
- return EVP_MAX_BLOCK_LENGTH;
- }
- static void cmac_key_free(EVP_PKEY *pkey)
- {
- EVP_MAC_CTX *cmctx = EVP_PKEY_get0(pkey);
- EVP_MAC_CTX_free(cmctx);
- }
- const EVP_PKEY_ASN1_METHOD cmac_asn1_meth = {
- EVP_PKEY_CMAC,
- EVP_PKEY_CMAC,
- 0,
- "CMAC",
- "OpenSSL CMAC method",
- 0, 0, 0, 0,
- 0, 0, 0,
- cmac_size,
- 0, 0,
- 0, 0, 0, 0, 0, 0, 0,
- cmac_key_free,
- 0,
- 0, 0
- };
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