+/* sha256.h */
+/*
+ This file is part of the Crypto-avr-lib/microcrypt-lib.
+ Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
+
+ 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/>.
+*/
/**
* \file sha256-asm.h
* \author Daniel Otte
#define SHA256_HASH_BITS 256
+#define SHA256_HASH_BYTES (SHA256_HASH_BITS/8)
#define SHA256_BLOCK_BITS 512
+#define SHA256_BLOCK_BYTES (SHA256_BLOCK_BITS/8)
/**
* \brief sha256 context type
uint64_t length;
} sha256_ctx_t;
-typedef uint8_t sha256_hash_t[SHA256_HASH_BITS/8];
+typedef uint8_t sha256_hash_t[SHA256_HASH_BYTES];
void sha256_init(sha256_ctx_t *state);
-void sha256_nextBlock (sha256_ctx_t *state, void* block);
-void sha256_lastBlock(sha256_ctx_t *state, void* block, uint16_t length);
+void sha256_nextBlock (sha256_ctx_t *state, const void* block);
+void sha256_lastBlock(sha256_ctx_t *state, const void* block, uint16_t length_b);
-void sha256_ctx2hash(sha256_hash_t *dest, sha256_ctx_t *state);
+void sha256_ctx2hash(sha256_hash_t *dest, const sha256_ctx_t *state);
/*
* length in bits!
*/
-void sha256(sha256_hash_t *dest, void* msg, uint32_t length);
+void sha256(sha256_hash_t *dest, const void* msg, uint32_t length_b);
uint32_t change_endian32(uint32_t x);