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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 The Bitcoin developers
// Copyright (c) 2014 vertoe & the Darkcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_HASH_H
#define BITCOIN_HASH_H
#include "serialize.h"
#include "uint256.h"
#include "version.h"
#include "sph_blake.h"
#include "sph_bmw.h"
#include "sph_groestl.h"
#include "sph_jh.h"
#include "sph_keccak.h"
#include "sph_skein.h"
#include "sph_luffa.h"
#include "sph_cubehash.h"
#include "sph_shavite.h"
#include "sph_simd.h"
#include "sph_echo.h"
#include <vector>
#include <openssl/ripemd.h>
#include <openssl/sha.h>
#ifdef GLOBALDEFINED
#define GLOBAL
#else
#define GLOBAL extern
#endif
GLOBAL sph_blake512_context z_blake;
GLOBAL sph_bmw512_context z_bmw;
GLOBAL sph_groestl512_context z_groestl;
GLOBAL sph_jh512_context z_jh;
GLOBAL sph_keccak512_context z_keccak;
GLOBAL sph_skein512_context z_skein;
GLOBAL sph_luffa512_context z_luffa;
GLOBAL sph_cubehash512_context z_cubehash;
GLOBAL sph_shavite512_context z_shavite;
GLOBAL sph_simd512_context z_simd;
GLOBAL sph_echo512_context z_echo;
#define fillz() do { \
sph_blake512_init(&z_blake); \
sph_bmw512_init(&z_bmw); \
sph_groestl512_init(&z_groestl); \
sph_jh512_init(&z_jh); \
sph_keccak512_init(&z_keccak); \
sph_skein512_init(&z_skein); \
sph_luffa512_init(&z_luffa); \
sph_cubehash512_init(&z_cubehash); \
sph_shavite512_init(&z_shavite); \
sph_simd512_init(&z_simd); \
sph_echo512_init(&z_echo); \
} while (0)
#define ZBLAKE (memcpy(&ctx_blake, &z_blake, sizeof(z_blake)))
#define ZBMW (memcpy(&ctx_bmw, &z_bmw, sizeof(z_bmw)))
#define ZGROESTL (memcpy(&ctx_groestl, &z_groestl, sizeof(z_groestl)))
#define ZJH (memcpy(&ctx_jh, &z_jh, sizeof(z_jh)))
#define ZKECCAK (memcpy(&ctx_keccak, &z_keccak, sizeof(z_keccak)))
#define ZSKEIN (memcpy(&ctx_skein, &z_skein, sizeof(z_skein)))
/* ----------- Bitcoin Hash ------------------------------------------------- */
template<typename T1>
inline uint256 Hash(const T1 pbegin, const T1 pend)
{
static unsigned char pblank[1];
uint256 hash1;
SHA256((pbegin == pend ? pblank : (unsigned char*)&pbegin[0]), (pend - pbegin) * sizeof(pbegin[0]), (unsigned char*)&hash1);
uint256 hash2;
SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
return hash2;
}
class CHashWriter
{
private:
SHA256_CTX ctx;
public:
int nType;
int nVersion;
void Init() {
SHA256_Init(&ctx);
}
CHashWriter(int nTypeIn, int nVersionIn) : nType(nTypeIn), nVersion(nVersionIn) {
Init();
}
CHashWriter& write(const char *pch, size_t size) {
SHA256_Update(&ctx, pch, size);
return (*this);
}
// invalidates the object
uint256 GetHash() {
uint256 hash1;
SHA256_Final((unsigned char*)&hash1, &ctx);
uint256 hash2;
SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
return hash2;
}
template<typename T>
CHashWriter& operator<<(const T& obj) {
// Serialize to this stream
::Serialize(*this, obj, nType, nVersion);
return (*this);
}
};
template<typename T1, typename T2>
inline uint256 Hash(const T1 p1begin, const T1 p1end,
const T2 p2begin, const T2 p2end)
{
static unsigned char pblank[1];
uint256 hash1;
SHA256_CTX ctx;
SHA256_Init(&ctx);
SHA256_Update(&ctx, (p1begin == p1end ? pblank : (unsigned char*)&p1begin[0]), (p1end - p1begin) * sizeof(p1begin[0]));
SHA256_Update(&ctx, (p2begin == p2end ? pblank : (unsigned char*)&p2begin[0]), (p2end - p2begin) * sizeof(p2begin[0]));
SHA256_Final((unsigned char*)&hash1, &ctx);
uint256 hash2;
SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
return hash2;
}
template<typename T1, typename T2, typename T3>
inline uint256 Hash(const T1 p1begin, const T1 p1end,
const T2 p2begin, const T2 p2end,
const T3 p3begin, const T3 p3end)
{
static unsigned char pblank[1];
uint256 hash1;
SHA256_CTX ctx;
SHA256_Init(&ctx);
SHA256_Update(&ctx, (p1begin == p1end ? pblank : (unsigned char*)&p1begin[0]), (p1end - p1begin) * sizeof(p1begin[0]));
SHA256_Update(&ctx, (p2begin == p2end ? pblank : (unsigned char*)&p2begin[0]), (p2end - p2begin) * sizeof(p2begin[0]));
SHA256_Update(&ctx, (p3begin == p3end ? pblank : (unsigned char*)&p3begin[0]), (p3end - p3begin) * sizeof(p3begin[0]));
SHA256_Final((unsigned char*)&hash1, &ctx);
uint256 hash2;
SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
return hash2;
}
template<typename T>
uint256 SerializeHash(const T& obj, int nType=SER_GETHASH, int nVersion=PROTOCOL_VERSION)
{
CHashWriter ss(nType, nVersion);
ss << obj;
return ss.GetHash();
}
template<typename T1>
inline uint160 Hash160(const T1 pbegin, const T1 pend)
{
static unsigned char pblank[1];
uint256 hash1;
SHA256((pbegin == pend ? pblank : (unsigned char*)&pbegin[0]), (pend - pbegin) * sizeof(pbegin[0]), (unsigned char*)&hash1);
uint160 hash2;
RIPEMD160((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
return hash2;
}
inline uint160 Hash160(const std::vector<unsigned char>& vch)
{
return Hash160(vch.begin(), vch.end());
}
unsigned int MurmurHash3(unsigned int nHashSeed, const std::vector<unsigned char>& vDataToHash);
typedef struct
{
SHA512_CTX ctxInner;
SHA512_CTX ctxOuter;
} HMAC_SHA512_CTX;
int HMAC_SHA512_Init(HMAC_SHA512_CTX *pctx, const void *pkey, size_t len);
int HMAC_SHA512_Update(HMAC_SHA512_CTX *pctx, const void *pdata, size_t len);
int HMAC_SHA512_Final(unsigned char *pmd, HMAC_SHA512_CTX *pctx);
/* ----------- Darkcoin Hash ------------------------------------------------ */
template<typename T1>
inline uint256 HashX11(const T1 pbegin, const T1 pend)
{
sph_blake512_context ctx_blake;
sph_bmw512_context ctx_bmw;
sph_groestl512_context ctx_groestl;
sph_jh512_context ctx_jh;
sph_keccak512_context ctx_keccak;
sph_skein512_context ctx_skein;
sph_luffa512_context ctx_luffa;
sph_cubehash512_context ctx_cubehash;
sph_shavite512_context ctx_shavite;
sph_simd512_context ctx_simd;
sph_echo512_context ctx_echo;
static unsigned char pblank[1];
uint512 hash[17]; /* @TODO uint512 not declared */
sph_blake512_init(&ctx_blake);
sph_blake512 (&ctx_blake, (pbegin == pend ? pblank : static_cast<const void*>(&pbegin[0])), (pend - pbegin) * sizeof(pbegin[0]));
sph_blake512_close(&ctx_blake, static_cast<void*>(&hash[0]));
sph_bmw512_init(&ctx_bmw);
sph_bmw512 (&ctx_bmw, static_cast<const void*>(&hash[0]), 64);
sph_bmw512_close(&ctx_bmw, static_cast<void*>(&hash[1]));
sph_groestl512_init(&ctx_groestl);
sph_groestl512 (&ctx_groestl, static_cast<const void*>(&hash[1]), 64);
sph_groestl512_close(&ctx_groestl, static_cast<void*>(&hash[2]));
sph_skein512_init(&ctx_skein);
sph_skein512 (&ctx_skein, static_cast<const void*>(&hash[2]), 64);
sph_skein512_close(&ctx_skein, static_cast<void*>(&hash[3]));
sph_jh512_init(&ctx_jh);
sph_jh512 (&ctx_jh, static_cast<const void*>(&hash[3]), 64);
sph_jh512_close(&ctx_jh, static_cast<void*>(&hash[4]));
sph_keccak512_init(&ctx_keccak);
sph_keccak512 (&ctx_keccak, static_cast<const void*>(&hash[4]), 64);
sph_keccak512_close(&ctx_keccak, static_cast<void*>(&hash[5]));
sph_luffa512_init(&ctx_luffa);
sph_luffa512 (&ctx_luffa, static_cast<void*>(&hash[5]), 64);
sph_luffa512_close(&ctx_luffa, static_cast<void*>(&hash[6]));
sph_cubehash512_init(&ctx_cubehash);
sph_cubehash512 (&ctx_cubehash, static_cast<const void*>(&hash[6]), 64);
sph_cubehash512_close(&ctx_cubehash, static_cast<void*>(&hash[7]));
sph_shavite512_init(&ctx_shavite);
sph_shavite512(&ctx_shavite, static_cast<const void*>(&hash[7]), 64);
sph_shavite512_close(&ctx_shavite, static_cast<void*>(&hash[8]));
sph_simd512_init(&ctx_simd);
sph_simd512 (&ctx_simd, static_cast<const void*>(&hash[8]), 64);
sph_simd512_close(&ctx_simd, static_cast<void*>(&hash[9]));
sph_echo512_init(&ctx_echo);
sph_echo512 (&ctx_echo, static_cast<const void*>(&hash[9]), 64);
sph_echo512_close(&ctx_echo, static_cast<void*>(&hash[10]));
return hash[10].trim256();
}
#endif