/*
* sha3.h: header file for SHA-3 routines
*
* Ref: http://keccak.noekeon.org/specs_summary.html
*
* Copyright (C) 2012-2013 Mark Shelor, All Rights Reserved
*
* Version: 0.08
* Wed Jun 26 04:32:06 MST 2013
*
*/
#ifndef _INCLUDE_SHA3_H_
#define _INCLUDE_SHA3_H_
#include <string.h>
#include <limits.h>
#define SHA64_SHR(x, n) ((x) >> (n))
#define SHA64_SHL(x, n) ((x) << (n))
#define SHA64_ALIGNED
#if defined(ULONG_LONG_MAX) || defined(ULLONG_MAX) || defined(HAS_LONG_LONG)
#define SHA_ULL_EXISTS
#endif
#if (((ULONG_MAX >> 16) >> 16) >> 16) >> 15 == 1UL
#define SHA64 unsigned long
#define SHA64_CONST(c) c ## UL
#elif defined(SHA_ULL_EXISTS) && defined(LONGLONGSIZE) && LONGLONGSIZE == 8
#define SHA64 unsigned long long
#define SHA64_CONST(c) c ## ULL
#elif defined(SHA_ULL_EXISTS)
#undef SHA64_ALIGNED
#undef SHA64_SHR
#define SHA64_MAX 18446744073709551615ULL
#define SHA64_SHR(x, n) (((x) & SHA64_MAX) >> (n))
#define SHA64 unsigned long long
#define SHA64_CONST(c) c ## ULL
/* The following cases detect compilers that
* support 64-bit types in a non-standard way */
#elif defined(_MSC_VER) /* Microsoft C */
#define SHA64 unsigned __int64
#define SHA64_CONST(c) (SHA64) c
#endif
#if defined(BYTEORDER) && ((BYTEORDER==0x1234) || (BYTEORDER==0x12345678))
#if defined(SHA64_ALIGNED)
#define MEM2WORD(W, m) memcpy(W, m, 8)
#endif
#endif
#if !defined(MEM2WORD)
#define MEM2WORD(W, m) *(W) = \
(SHA64) m[0] << 0 | (SHA64) m[1] << 8 | \
(SHA64) m[2] << 16 | (SHA64) m[3] << 24 | \
(SHA64) m[4] << 32 | (SHA64) m[5] << 40 | \
(SHA64) m[6] << 48 | (SHA64) m[7] << 56
#endif
#define SHA3_new New
#define SHA3_newz Newz
#define SHA3_free Safefree
#define SHA3_0 0
#define SHA3_224 224
#define SHA3_256 256
#define SHA3_384 384
#define SHA3_512 512
#define SHA3_0_BLOCK_BITS 1024
#define SHA3_224_BLOCK_BITS 1152
#define SHA3_256_BLOCK_BITS 1088
#define SHA3_384_BLOCK_BITS 832
#define SHA3_512_BLOCK_BITS 576
#define SHA3_0_DIGEST_BITS 4096
#define SHA3_224_DIGEST_BITS 224
#define SHA3_256_DIGEST_BITS 256
#define SHA3_384_DIGEST_BITS 384
#define SHA3_512_DIGEST_BITS 512
#define SHA3_MAX_BLOCK_BITS SHA3_224_BLOCK_BITS
#define SHA3_MAX_DIGEST_BITS SHA3_0_DIGEST_BITS
#define SHA3_MAX_HEX_LEN (SHA3_MAX_DIGEST_BITS / 4)
#define SHA3_MAX_BASE64_LEN (1 + (SHA3_MAX_DIGEST_BITS / 6))
typedef struct SHA3 {
int alg;
SHA64 S[5][5];
unsigned char block[SHA3_MAX_BLOCK_BITS/8];
unsigned int blockcnt;
unsigned int blocksize;
unsigned char digest[SHA3_MAX_DIGEST_BITS/8];
int digestlen;
char hex[SHA3_MAX_HEX_LEN+1];
char base64[SHA3_MAX_BASE64_LEN+1];
} SHA3;
#endif /* _INCLUDE_SHA3_H_ */