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/* sha2.h */
/*
This file was part of the AVR-Crypto-Lib.
Copyright (C) 2011 Daniel Otte (daniel.otte@rub.de)
Copyright (C) 2019 Jan Jancar
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SHA2_H_
#define SHA2_H_
typedef struct {
uint64_t h[8];
uint32_t length;
} sha2_large_common_ctx_t;
typedef struct {
uint32_t h[8];
uint32_t length;
} sha2_small_common_ctx_t;
#if HASH == HASH_SHA224
#define SHA2_SIZE 28
#define SHA2_j 7
#define SHA2_HASH_BITS 224
#define SHA2_HASH_BYTES (SHA2_HASH_BITS/8)
#define SHA2_BLOCK_BITS 512
#define SHA2_BLOCK_BYTES (SHA2_BLOCK_BITS/8)
#define sha2_ctx_t sha2_small_common_ctx_t
#define SHA2_STATE_BYTES 32
#elif HASH == HASH_SHA256
#define SHA2_SIZE 32
#define SHA2_j 8
#define SHA2_HASH_BITS 256
#define SHA2_HASH_BYTES (SHA2_HASH_BITS/8)
#define SHA2_BLOCK_BITS 512
#define SHA2_BLOCK_BYTES (SHA2_BLOCK_BITS/8)
#define sha2_ctx_t sha2_small_common_ctx_t
#define SHA2_STATE_BYTES 32
#elif HASH == HASH_SHA384
#define SHA2_SIZE 48
#define SHA2_i 6
#define SHA2_HASH_BITS 384
#define SHA2_HASH_BYTES (SHA2_HASH_BITS/8)
#define SHA2_BLOCK_BITS 1024
#define SHA2_BLOCK_BYTES (SHA2_BLOCK_BITS/8)
#define sha2_ctx_t sha2_large_common_ctx_t
#define SHA2_STATE_BYTES 64
#elif HASH == HASH_SHA512
#define SHA2_SIZE 64
#define SHA2_i 8
#define SHA2_HASH_BITS 512
#define SHA2_HASH_BYTES (SHA2_HASH_BITS/8)
#define SHA2_BLOCK_BITS 1024
#define SHA2_BLOCK_BYTES (SHA2_BLOCK_BITS/8)
#define sha2_ctx_t sha2_large_common_ctx_t
#define SHA2_STATE_BYTES 64
#endif
#endif /* SHA2_H_ */
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