76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
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/**
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* @file hmac.h
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* @brief HMAC (Keyed-Hashing for Message Authentication)
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*
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* @section License
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*
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* Copyright (C) 2010-2014 Oryx Embedded. All rights reserved.
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*
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* This file is part of CycloneCrypto Open.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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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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*
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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, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* @author Oryx Embedded (www.oryx-embedded.com)
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* @version 1.5.0
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**/
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#ifndef _HMAC_H
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#define _HMAC_H
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//Dependencies
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#include "crypto.h"
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#include "sha256.h"
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//Inner padding (ipad)
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#define HMAC_IPAD 0x36
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//Outer padding (opad)
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#define HMAC_OPAD 0x5C
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/**
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* @brief HMAC algorithm context
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**/
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typedef struct {
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const HashAlgo *hash;
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u8 hashContext[MAX_HASH_CONTEXT_SIZE];
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u8 key[MAX_HASH_BLOCK_SIZE];
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u8 digest[MAX_HASH_DIGEST_SIZE];
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} HmacContext;
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//HMAC related constants
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//extern const uint8_t HMAC_WITH_MD5_OID[8];
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//extern const uint8_t HMAC_WITH_TIGER_OID[8];
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//extern const uint8_t HMAC_WITH_RIPEMD160_OID[8];
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//extern const uint8_t HMAC_WITH_SHA1_OID[8];
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//extern const uint8_t HMAC_WITH_SHA224_OID[8];
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//extern const uint8_t HMAC_WITH_SHA256_OID[8];
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//extern const uint8_t HMAC_WITH_SHA384_OID[8];
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//extern const uint8_t HMAC_WITH_SHA512_OID[8];
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//HMAC related functions
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error_t hmacCompute(const HashAlgo *hash, const void *key, int keyLength,
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const void *data, int dataLength, u8 *digest);
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void hmacInit(HmacContext *context, const HashAlgo *hash,
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const void *key, int length);
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void hmacUpdate(HmacContext *context, const void *data, int length);
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void hmacFinal(HmacContext *context, u8 *digest);
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#endif
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