2008-05-26 19:13:21 +00:00
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/* sha256.h */
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/*
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This file is part of the Crypto-avr-lib/microcrypt-lib.
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Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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2006-07-31 16:04:26 +00:00
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/**
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2006-10-08 14:02:29 +00:00
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* \file sha256-asm.h
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2007-06-18 04:50:39 +00:00
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* \author Daniel Otte
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* \date 2006-05-16
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2006-10-08 14:02:29 +00:00
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* \par License
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* GPL
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2006-07-31 16:04:26 +00:00
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*
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*/
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#ifndef SHA256_H_
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#define SHA256_H_
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#define __LITTLE_ENDIAN__
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#include <stdint.h>
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#define SHA256_HASH_BITS 256
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2008-07-09 03:22:58 +00:00
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#define SHA256_HASH_BYTES (SHA256_HASH_BITS/8)
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2006-07-31 16:04:26 +00:00
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#define SHA256_BLOCK_BITS 512
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2008-07-09 03:22:58 +00:00
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#define SHA256_BLOCK_BYTES (SHA256_BLOCK_BITS/8)
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2006-07-31 16:04:26 +00:00
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2006-10-08 14:02:29 +00:00
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/**
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* \brief sha256 context type
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*
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*/
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2006-07-31 16:04:26 +00:00
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typedef struct {
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uint32_t h[8];
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uint64_t length;
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} sha256_ctx_t;
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2008-07-09 03:22:58 +00:00
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typedef uint8_t sha256_hash_t[SHA256_HASH_BYTES];
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2006-07-31 16:04:26 +00:00
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void sha256_init(sha256_ctx_t *state);
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2006-10-08 14:02:29 +00:00
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2008-04-17 15:39:07 +00:00
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void sha256_nextBlock (sha256_ctx_t *state, const void* block);
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2008-07-09 03:22:58 +00:00
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void sha256_lastBlock(sha256_ctx_t *state, const void* block, uint16_t length_b);
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2006-07-31 16:04:26 +00:00
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2008-04-17 15:39:07 +00:00
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void sha256_ctx2hash(sha256_hash_t *dest, const sha256_ctx_t *state);
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2007-06-18 04:50:39 +00:00
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/*
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* length in bits!
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*/
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2008-07-09 03:22:58 +00:00
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void sha256(sha256_hash_t *dest, const void* msg, uint32_t length_b);
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2006-07-31 16:04:26 +00:00
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uint32_t change_endian32(uint32_t x);
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#endif /*SHA256_H_*/
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