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trezor-firmware/crypto/hmac.h
2019-04-15 19:14:52 +02:00

61 lines
2.6 KiB
C

/**
* Copyright (c) 2013-2014 Tomas Dzetkulic
* Copyright (c) 2013-2014 Pavol Rusnak
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT HMAC_SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef __HMAC_H__
#define __HMAC_H__
#include <stdint.h>
#include "sha2.h"
typedef struct _HMAC_SHA256_CTX {
uint8_t o_key_pad[SHA256_BLOCK_LENGTH];
SHA256_CTX ctx;
} HMAC_SHA256_CTX;
typedef struct _HMAC_SHA512_CTX {
uint8_t o_key_pad[SHA512_BLOCK_LENGTH];
SHA512_CTX ctx;
} HMAC_SHA512_CTX;
void hmac_sha256_Init(HMAC_SHA256_CTX *hctx, const uint8_t *key,
const uint32_t keylen);
void hmac_sha256_Update(HMAC_SHA256_CTX *hctx, const uint8_t *msg,
const uint32_t msglen);
void hmac_sha256_Final(HMAC_SHA256_CTX *hctx, uint8_t *hmac);
void hmac_sha256(const uint8_t *key, const uint32_t keylen, const uint8_t *msg,
const uint32_t msglen, uint8_t *hmac);
void hmac_sha256_prepare(const uint8_t *key, const uint32_t keylen,
uint32_t *opad_digest, uint32_t *ipad_digest);
void hmac_sha512_Init(HMAC_SHA512_CTX *hctx, const uint8_t *key,
const uint32_t keylen);
void hmac_sha512_Update(HMAC_SHA512_CTX *hctx, const uint8_t *msg,
const uint32_t msglen);
void hmac_sha512_Final(HMAC_SHA512_CTX *hctx, uint8_t *hmac);
void hmac_sha512(const uint8_t *key, const uint32_t keylen, const uint8_t *msg,
const uint32_t msglen, uint8_t *hmac);
void hmac_sha512_prepare(const uint8_t *key, const uint32_t keylen,
uint64_t *opad_digest, uint64_t *ipad_digest);
#endif