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/* $Id: whirlpool.h 171 2009-01-15 23:04:12Z jessekornblum $ */
#ifndef __WHIRLPOOL_H
#define __WHIRLPOOL_H
#include "common.h"
/* ----------------------------------------------------------------------
Original headers from Whirlpool
---------------------------------------------------------------------- */
#ifndef PORTABLE_C__
#define PORTABLE_C__
#include <limits.h>
/* Definition of minimum-width integer types
*
* u8 -> unsigned integer type, at least 8 bits, equivalent to unsigned char
* u16 -> unsigned integer type, at least 16 bits
* u32 -> unsigned integer type, at least 32 bits
*
* s8, s16, s32 -> signed counterparts of u8, u16, u32
*
* Always use macro's T8(), T16() or T32() to obtain exact-width results,
* i.e., to specify the size of the result of each expression.
*/
typedef signed char s8;
typedef unsigned char u8;
#if UINT_MAX >= 4294967295UL
typedef signed short s16;
typedef signed int s32;
typedef unsigned short u16;
typedef unsigned int u32;
#define ONE32 0xffffffffU
#else
typedef signed int s16;
typedef signed long s32;
typedef unsigned int u16;
typedef unsigned long u32;
#define ONE32 0xffffffffUL
#endif
#define ONE8 0xffU
#define ONE16 0xffffU
#define T8(x) ((x) & ONE8)
#define T16(x) ((x) & ONE16)
#define T32(x) ((x) & ONE32)
#ifdef _MSC_VER
typedef unsigned __int64 u64;
typedef signed __int64 s64;
#define LL(v) (v##i64)
#define ONE64 LL(0xffffffffffffffff)
#else /* !_MSC_VER */
typedef unsigned long long u64;
typedef signed long long s64;
#define LL(v) (v##ULL)
#define ONE64 LL(0xffffffffffffffff)
#endif /* ?_MSC_VER */
#define T64(x) ((x) & ONE64)
#define ROTR64(v, n) (((v) >> (n)) | T64((v) << (64 - (n))))
/*
* Note: the test is used to detect native 64-bit architectures;
* if the unsigned long is strictly greater than 32-bit, it is
* assumed to be at least 64-bit. This will not work correctly
* on (old) 36-bit architectures (PDP-11 for instance).
*
* On non-64-bit architectures, "long long" is used.
*/
/*
* U8TO32_BIG(c) returns the 32-bit value stored in big-endian convention
* in the unsigned char array pointed to by c.
*/
#define U8TO32_BIG(c) (((u32)T8(*(c)) << 24) | ((u32)T8(*((c) + 1)) << 16) | ((u32)T8(*((c) + 2)) << 8) | ((u32)T8(*((c) + 3))))
/*
* U8TO32_LITTLE(c) returns the 32-bit value stored in little-endian convention
* in the unsigned char array pointed to by c.
*/
#define U8TO32_LITTLE(c) (((u32)T8(*(c))) | ((u32)T8(*((c) + 1)) << 8) | (u32)T8(*((c) + 2)) << 16) | ((u32)T8(*((c) + 3)) << 24))
/*
* U8TO32_BIG(c, v) stores the 32-bit-value v in big-endian convention
* into the unsigned char array pointed to by c.
*/
#define U32TO8_BIG(c, v) do { u32 x = (v); u8 *d = (c); d[0] = T8(x >> 24); d[1] = T8(x >> 16); d[2] = T8(x >> 8); d[3] = T8(x); } while (0)
/*
* U8TO32_LITTLE(c, v) stores the 32-bit-value v in little-endian convention
* into the unsigned char array pointed to by c.
*/
#define U32TO8_LITTLE(c, v) do { u32 x = (v); u8 *d = (c); d[0] = T8(x); d[1] = T8(x >> 8); d[2] = T8(x >> 16); d[3] = T8(x >> 24); } while (0)
/*
* ROTL32(v, n) returns the value of the 32-bit unsigned value v after
* a rotation of n bits to the left. It might be replaced by the appropriate
* architecture-specific macro.
*
* It evaluates v and n twice.
*
* The compiler might emit a warning if n is the constant 0. The result
* is undefined if n is greater than 31.
*/
#define ROTL32(v, n) (T32((v) << (n)) | ((v) >> (32 - (n))))
/*
* Whirlpool-specific definitions.
*/
#define DIGESTBYTES 64
#define DIGESTBITS (8*DIGESTBYTES) /* 512 */
#define WBLOCKBYTES 64
#define WBLOCKBITS (8*WBLOCKBYTES) /* 512 */
#define LENGTHBYTES 32
#define LENGTHBITS (8*LENGTHBYTES) /* 256 */
typedef struct NESSIEstruct {
u8 bitLength[LENGTHBYTES]; /* global number of hashed bits (256-bit counter) */
u8 buffer[WBLOCKBYTES]; /* buffer of data to hash */
int bufferBits; /* current number of bits on the buffer */
int bufferPos; /* current (possibly incomplete) byte slot on the buffer */
u64 hash[DIGESTBYTES/8]; /* the hashing state */
} NESSIEstruct;
void NESSIEinit(struct NESSIEstruct * const structpointer);
/* WARNING: The "len" here is the number of BITS, not the number of BYTES.
You must multiply the number of bytes by eight before calling
this function! */
void NESSIEadd(const unsigned char * const source,
unsigned long sourceBits,
struct NESSIEstruct * const structpointer);
void NESSIEfinalize(struct NESSIEstruct * const structpointer,
unsigned char * const result);
#define context_whirlpool_t NESSIEstruct
int hash_init_whirlpool(void * ctx);
int hash_update_whirlpool(void * ctx, unsigned char *buf, uint64_t len);
int hash_final_whirlpool(void * ctx, unsigned char *digest);
#endif /* PORTABLE_C__ */
#endif /* __WHIRLPOOL_H */
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