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119 lines
3.0 KiB
119 lines
3.0 KiB
/* |
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--------------------------------------------------------------------------- |
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Copyright (c) 1998-2010, Brian Gladman, Worcester, UK. All rights reserved. |
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The redistribution and use of this software (with or without changes) |
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is allowed without the payment of fees or royalties provided that: |
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source code distributions include the above copyright notice, this |
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list of conditions and the following disclaimer; |
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binary distributions include the above copyright notice, this list |
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of conditions and the following disclaimer in their documentation. |
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This software is provided 'as is' with no explicit or implied warranties |
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in respect of its operation, including, but not limited to, correctness |
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and fitness for purpose. |
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--------------------------------------------------------------------------- |
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Issue Date: 20/12/2007 |
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This is an implementation of HMAC, the FIPS standard keyed hash function |
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*/ |
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#ifndef _HMAC2_H |
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#define _HMAC2_H |
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#include <stdlib.h> |
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#include <string.h> |
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#if defined(__cplusplus) |
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extern "C" |
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{ |
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#endif |
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#include "sha1.h" |
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#if defined(SHA_224) || defined(SHA_256) || defined(SHA_384) || defined(SHA_512) |
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#define HMAC_MAX_OUTPUT_SIZE SHA2_MAX_DIGEST_SIZE |
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#define HMAC_MAX_BLOCK_SIZE SHA2_MAX_BLOCK_SIZE |
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#else |
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#define HMAC_MAX_OUTPUT_SIZE SHA1_DIGEST_SIZE |
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#define HMAC_MAX_BLOCK_SIZE SHA1_BLOCK_SIZE |
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#endif |
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#define HMAC_IN_DATA 0xffffffff |
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enum hmac_hash |
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{ |
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#ifdef SHA_1 |
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HMAC_SHA1, |
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#endif |
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#ifdef SHA_224 |
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HMAC_SHA224, |
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#endif |
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#ifdef SHA_256 |
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HMAC_SHA256, |
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#endif |
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#ifdef SHA_384 |
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HMAC_SHA384, |
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#endif |
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#ifdef SHA_512 |
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HMAC_SHA512, |
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HMAC_SHA512_256, |
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HMAC_SHA512_224, |
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HMAC_SHA512_192, |
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HMAC_SHA512_128 |
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#endif |
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}; |
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typedef VOID_RETURN hf_begin(void*); |
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typedef VOID_RETURN hf_hash(const void*, unsigned long len, void*); |
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typedef VOID_RETURN hf_end(void*, void*); |
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typedef struct |
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{ hf_begin *f_begin; |
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hf_hash *f_hash; |
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hf_end *f_end; |
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unsigned char key[HMAC_MAX_BLOCK_SIZE]; |
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union |
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{ |
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#ifdef SHA_1 |
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sha1_ctx u_sha1; |
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#endif |
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#ifdef SHA_224 |
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sha224_ctx u_sha224; |
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#endif |
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#ifdef SHA_256 |
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sha256_ctx u_sha256; |
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#endif |
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#ifdef SHA_384 |
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sha384_ctx u_sha384; |
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#endif |
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#ifdef SHA_512 |
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sha512_ctx u_sha512; |
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#endif |
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} sha_ctx[1]; |
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unsigned long input_len; |
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unsigned long output_len; |
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unsigned long klen; |
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} hmac_ctx; |
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/* returns the length of hash digest for the hash used */ |
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/* mac_len must not be greater than this */ |
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int hmac_sha_begin(enum hmac_hash hash, hmac_ctx cx[1]); |
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int hmac_sha_key(const unsigned char key[], unsigned long key_len, hmac_ctx cx[1]); |
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void hmac_sha_data(const unsigned char data[], unsigned long data_len, hmac_ctx cx[1]); |
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void hmac_sha_end(unsigned char mac[], unsigned long mac_len, hmac_ctx cx[1]); |
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void hmac_sha(enum hmac_hash hash, const unsigned char key[], unsigned long key_len, |
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const unsigned char data[], unsigned long data_len, |
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unsigned char mac[], unsigned long mac_len); |
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#if defined(__cplusplus) |
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} |
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#endif |
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#endif
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