/* sha256.h */
/*
This file is part of the AVR-Crypto-Lib.
- Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
+ Copyright (C) 2006-2015 Daniel Otte (bg@nerilex.org)
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
*/
#define SHA256_HASH_BITS 256
-#define SHA256_HASH_BYTES (SHA256_HASH_BITS/8)
+#define SHA256_HASH_BYTES (SHA256_HASH_BITS / 8)
#define SHA256_BLOCK_BITS 512
-#define SHA256_BLOCK_BYTES (SHA256_BLOCK_BITS/8)
+#define SHA256_BLOCK_BYTES (SHA256_BLOCK_BITS / 8)
/** \typedef sha256_ctx_t
* \brief SHA-256 context type
*/
typedef struct {
uint32_t h[8];
- uint64_t length;
+ uint32_t length;
} sha256_ctx_t;
/** \typedef sha256_hash_t
* \brief SHA-256 hash value type
*
* A variable of this type may hold the hash value produced by the
- * sha256_ctx2hash(sha256_hash_t* dest, const sha256_ctx_t* state) function.
+ * sha256_ctx2hash(sha256_hash_t *dest, const sha256_ctx_t *state) function.
*/
typedef uint8_t sha256_hash_t[SHA256_HASH_BYTES];
*/
void sha256_init(sha256_ctx_t *state);
-/** \fn void sha256_nextBlock (sha256_ctx_t* state, const void* block)
+/** \fn void sha256_nextBlock (sha256_ctx_t *state, const void *block)
* \brief update the context with a given block
*
* This function updates the SHA-256 hash context by processing the given block
* \param state pointer to the SHA-256 hash context
* \param block pointer to the block of fixed length (512 bit = 64 byte)
*/
-void sha256_nextBlock (sha256_ctx_t* state, const void* block);
+void sha256_nextBlock (sha256_ctx_t *state, const void *block);
-/** \fn void sha256_lastBlock(sha256_ctx_t* state, const void* block, uint16_t length_b)
+/** \fn void sha256_lastBlock(sha256_ctx_t *state, const void *block, uint16_t length_b)
* \brief finalize the context with the given block
*
* This function finalizes the SHA-256 hash context by processing the given block
* \param block pointer to the block of fixed length (512 bit = 64 byte)
* \param length_b the length of the block in bits
*/
-void sha256_lastBlock(sha256_ctx_t* state, const void* block, uint16_t length_b);
+void sha256_lastBlock(sha256_ctx_t *state, const void *block, uint16_t length_b);
-/** \fn void sha256_ctx2hash(sha256_hash_t* dest, const sha256_ctx_t* state)
+/** \fn void sha256_ctx2hash(sha256_hash_t *dest, const sha256_ctx_t *state)
* \brief convert the hash state into the hash value
* This function reads the context and writes the hash value to the destination
* \param dest pointer to the location where the hash value should be written
* \param state pointer to the SHA-256 hash context
*/
-void sha256_ctx2hash(sha256_hash_t* dest, const sha256_ctx_t* state);
+void sha256_ctx2hash(sha256_hash_t *dest, const sha256_ctx_t *state);
-/** \fn void sha256(sha256_hash_t* dest, const void* msg, uint32_t length_b)
+/** \fn void sha256(sha256_hash_t *dest, const void *msg, uint32_t length_b)
* \brief simple SHA-256 hashing function for direct hashing
*
* This function automaticaly hashes a given message of arbitary length with
* \param msg pointer to the message thats going to be hashed
* \param length_b length of the message in bits
*/
-void sha256(sha256_hash_t* dest, const void* msg, uint32_t length_b);
+void sha256(sha256_hash_t *dest, const void *msg, uint32_t length_b);
#endif /*SHA256_H_*/