1 /* 2 * Copyright 1995-2024 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (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 # include "internal/common.h" 14 # include "internal/numbers.h" 15 # include "openssl/sha.h" 16 17 /* The current largest case is for SHA3-224 */ 18 #define HMAC_MAX_MD_CBLOCK_SIZE 144 19 20 struct hmac_ctx_st { 21 const EVP_MD *md; 22 EVP_MD_CTX *md_ctx; 23 EVP_MD_CTX *i_ctx; 24 EVP_MD_CTX *o_ctx; 25 26 /* Platform specific data */ 27 union { 28 int dummy; 29 # ifdef OPENSSL_HMAC_S390X 30 struct { 31 unsigned int fc; /* 0 if not supported by kmac instruction */ 32 int blk_size; 33 int ikp; 34 int iimp; 35 unsigned char *buf; 36 size_t size; /* must be multiple of digest block size */ 37 size_t num; 38 union { 39 OSSL_UNION_ALIGN; 40 struct { 41 uint32_t h[8]; 42 uint64_t imbl; 43 unsigned char key[64]; 44 } hmac_224_256; 45 struct { 46 uint64_t h[8]; 47 uint128_t imbl; 48 unsigned char key[128]; 49 } hmac_384_512; 50 } param; 51 } s390x; 52 # endif /* OPENSSL_HMAC_S390X */ 53 } plat; 54 }; 55 56 # ifdef OPENSSL_HMAC_S390X 57 # define HMAC_S390X_BUF_NUM_BLOCKS 64 58 59 int s390x_HMAC_init(HMAC_CTX *ctx, const void *key, int key_len, ENGINE *impl); 60 int s390x_HMAC_update(HMAC_CTX *ctx, const unsigned char *data, size_t len); 61 int s390x_HMAC_final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len); 62 int s390x_HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx); 63 int s390x_HMAC_CTX_cleanup(HMAC_CTX *ctx); 64 # endif /* OPENSSL_HMAC_S390X */ 65 66 #endif 67
