1 /* 2 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (the "License"). You may not use 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 8 */ 9 10 #ifndef OSSL_CRYPTO_HMAC_LOCAL_H 11 # define OSSL_CRYPTO_HMAC_LOCAL_H 12 13 /* The current largest case is for SHA3-224 */ 14 #define HMAC_MAX_MD_CBLOCK_SIZE 144 15 16 struct hmac_ctx_st { 17 const EVP_MD *md; 18 EVP_MD_CTX *md_ctx; 19 EVP_MD_CTX *i_ctx; 20 EVP_MD_CTX *o_ctx; 21 }; 22 23 #endif 24