core.h

//#define _DEBUG 1

#pragma once
#ifndef _CORE_H
#define _CORE_H

#include <stdlib.h>

#if defined _MSC_VER
    #define ALIGN(x) __declspec(align(x))
#else
    #define ALIGN(x) __attribute__ ((__aligned__(x)))
#endif

#ifndef SIMD_ALIGN
    #define SIMD_ALIGN  16
#endif

#define ALIGNED  ALIGN( SIMD_ALIGN )

typedef ALIGNED union u512
{
    unsigned long long QWORD[8];
} u512_t;

ALIGNED typedef struct GOST34112012Context
{
    ALIGNED u512_t h;
    ALIGNED u512_t N;
    ALIGNED u512_t Sigma;
    ALIGNED unsigned char buffer[64];
    unsigned int bufsize;
    unsigned int digest_size;
} GOST34112012Context;

#define  CTX_FIELD(C, fn)		(unsigned char*)&((C)->fn)

void GOST34112012Dump(GOST34112012Context *CTX);
void GOST34112012Init(GOST34112012Context *CTX, const unsigned int digest_size);
void GOST34112012Update(GOST34112012Context *CTX, const unsigned char *data, size_t len); 
void GOST34112012Final(GOST34112012Context *CTX, unsigned char *digest); 
void GOST34112012Cleanup(GOST34112012Context *CTX);

void add_bytes(unsigned char* dst, const unsigned char* src);
void print_buffer(const unsigned char* ptr, int ptr_len);
#endif