-/*

- ---------------------------------------------------------------------------

- Copyright (c) 2002, Dr Brian Gladman, Worcester, UK. All rights reserved.

-

- LICENSE TERMS

-

- The free distribution and use of this software is allowed (with or without

- changes) provided that:

-

- 1. source code distributions include the above copyright notice, this

- list of conditions and the following disclaimer;

-

- 2. binary distributions include the above copyright notice, this list

- of conditions and the following disclaimer in their documentation;

-

- 3. the name of the copyright holder is not used to endorse products

- built using this software without specific written permission.

-

- DISCLAIMER

-

- This software is provided 'as is' with no explicit or implied warranties

- in respect of its properties, including, but not limited to, correctness

- and/or fitness for purpose.

- ---------------------------------------------------------------------------

- Issue Date: 01/08/2005

-*/

-

-#ifndef _SHA2_H

-#define _SHA2_H

-

-#include "Common/Tcdefs.h"

-#include "Common/Endian.h"

-

-#define SHA_64BIT

-

-/* define the hash functions that you need */

-#define SHA_2 /* for dynamic hash length */

-#define SHA_224

-#define SHA_256

-#ifdef SHA_64BIT

-# define SHA_384

-# define SHA_512

-# define NEED_UINT_64T

-#endif

-

-#ifndef EXIT_SUCCESS

-#define EXIT_SUCCESS 0

-#define EXIT_FAILURE 1

-#endif

-

-#define li_64(h) 0x##h##ull

-

-#define VOID_RETURN void

-#define INT_RETURN int

-

-#if defined(__cplusplus)

-extern "C"

-{

-#endif

-

-/* Note that the following function prototypes are the same */

-/* for both the bit and byte oriented implementations. But */

-/* the length fields are in bytes or bits as is appropriate */

-/* for the version used. Bit sequences are arrays of bytes */

-/* in which bit sequence indexes increase from the most to */

-/* the least significant end of each byte */

-

-#define SHA224_DIGEST_SIZE 28

-#define SHA224_BLOCK_SIZE 64

-#define SHA256_DIGEST_SIZE 32

-#define SHA256_BLOCK_SIZE 64

-

-/* type to hold the SHA256 (and SHA224) context */

-

-typedef struct

-{ uint_32t count[2];

- uint_32t hash[8];

- uint_32t wbuf[16];

-} sha256_ctx;

-

-typedef sha256_ctx sha224_ctx;

-

-VOID_RETURN sha256_compile(sha256_ctx ctx[1]);

-

-VOID_RETURN sha224_begin(sha224_ctx ctx[1]);

-#define sha224_hash sha256_hash

-VOID_RETURN sha224_end(unsigned char hval[], sha224_ctx ctx[1]);

-VOID_RETURN sha224(unsigned char hval[], const unsigned char data[], unsigned long len);

-

-VOID_RETURN sha256_begin(sha256_ctx ctx[1]);

-VOID_RETURN sha256_hash(const unsigned char data[], unsigned long len, sha256_ctx ctx[1]);

-VOID_RETURN sha256_end(unsigned char hval[], sha256_ctx ctx[1]);

-VOID_RETURN sha256(unsigned char hval[], const unsigned char data[], unsigned long len);

-

-#ifndef SHA_64BIT

-

-typedef struct

-{ union

- { sha256_ctx ctx256[1];

- } uu[1];

- uint_32t sha2_len;

-} sha2_ctx;

-

-#define SHA2_MAX_DIGEST_SIZE SHA256_DIGEST_SIZE

-

-#else

-

-#define SHA384_DIGEST_SIZE 48

-#define SHA384_BLOCK_SIZE 128

-#define SHA512_DIGEST_SIZE 64

-#define SHA512_BLOCK_SIZE 128

-#define SHA2_MAX_DIGEST_SIZE SHA512_DIGEST_SIZE

-

-/* type to hold the SHA384 (and SHA512) context */

-

-typedef struct

-{ uint_64t count[2];

- uint_64t hash[8];

- uint_64t wbuf[16];

-} sha512_ctx;

-

-typedef sha512_ctx sha384_ctx;

-

-typedef struct

-{ union

- { sha256_ctx ctx256[1];

- sha512_ctx ctx512[1];

- } uu[1];

- uint_32t sha2_len;

-} sha2_ctx;

-

-VOID_RETURN sha512_compile(sha512_ctx ctx[1]);

-

-VOID_RETURN sha384_begin(sha384_ctx ctx[1]);

-#define sha384_hash sha512_hash

-VOID_RETURN sha384_end(unsigned char hval[], sha384_ctx ctx[1]);

-VOID_RETURN sha384(unsigned char hval[], const unsigned char data[], unsigned long len);

-

-VOID_RETURN sha512_begin(sha512_ctx ctx[1]);

-VOID_RETURN sha512_hash(const unsigned char data[], unsigned long len, sha512_ctx ctx[1]);

-VOID_RETURN sha512_end(unsigned char hval[], sha512_ctx ctx[1]);

-VOID_RETURN sha512(unsigned char hval[], const unsigned char data[], unsigned long len);

-

-INT_RETURN sha2_begin(unsigned long size, sha2_ctx ctx[1]);

-VOID_RETURN sha2_hash(const unsigned char data[], unsigned long len, sha2_ctx ctx[1]);

-VOID_RETURN sha2_end(unsigned char hval[], sha2_ctx ctx[1]);

-INT_RETURN sha2(unsigned char hval[], unsigned long size, const unsigned char data[], unsigned long len);

-

-#endif

-

-#if defined(__cplusplus)

-}

-#endif

-

-#endif