/* hmac-sha256.h */
/*
- This file is part of the This file is part of the AVR-Crypto-Lib.
+ This file is part of the AVR-Crypto-Lib.
Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
This program is free software: you can redistribute it and/or modify
#include "sha256.h"
-#define HMAC_BITS SHA256_HASH_BITS
-#define HMAC_BYTES ((HMAC_BITS+7)/8)
+#define HMAC_SHA256_BITS SHA256_HASH_BITS
+#define HMAC_SHA256_BYTES SHA256_HASH_BYTES
+#define HMAC_SHA256_BLOCK_BITS SHA256_BLOCK_BITS
+#define HMAC_SHA256_BLOCK_BYTES SHA256_BLOCK_BYTES
-typedef sha256_ctx_t hmac_sha256_ctx_t;
+typedef struct {
+ sha256_ctx_t a,b;
+} hmac_sha256_ctx_t;
-void hmac_sha256_init(hmac_sha256_ctx_t *s, void* key, uint16_t keylength_b);
-void hmac_sha256_final(hmac_sha256_ctx_t *s, void* key, uint16_t keylength_b);
-void hmac_sha256(void* dest, void* key, uint16_t keylength_b, void* msg, uint64_t msglength_b);
+
+void hmac_sha256_init(hmac_sha256_ctx_t *s, const void* key, uint16_t keylength_b);
+void hmac_sha256_nextBlock(hmac_sha256_ctx_t *s, const void* block);
+void hmac_sha256_lastBlock(hmac_sha256_ctx_t *s, const void* block, uint16_t length_b);
+void hmac_sha256_final(void* dest, hmac_sha256_ctx_t *s);
+
+void hmac_sha256(void* dest, const void* key, uint16_t keylength_b, const void* msg, uint32_t msglength_b);
#endif /*HMACSHA256_H_*/