FLO-wallet-core/src/sha2.h
Pieter Wuille 977cdadea8 Add a built-in SHA256/SHA512 implementation.
This also moves the HMAC-SHA512 implementation to sha2.cpp.
2014-06-21 19:47:39 +02:00

55 lines
1.1 KiB
C++

// Copyright (c) 2014 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_SHA2_H
#define BITCOIN_SHA2_H
#include <stdint.h>
#include <stdlib.h>
/** A hasher class for SHA-256. */
class CSHA256 {
private:
uint32_t s[8];
unsigned char buf[64];
size_t bytes;
public:
CSHA256();
CSHA256& Write(const unsigned char *data, size_t len);
void Finalize(unsigned char *hash);
CSHA256& Reset();
};
/** A hasher class for SHA-512. */
class CSHA512 {
private:
uint64_t s[8];
unsigned char buf[128];
size_t bytes;
public:
CSHA512();
CSHA512& Write(const unsigned char *data, size_t len);
void Finalize(unsigned char *hash);
CSHA512& Reset();
};
/** A hasher class for HMAC-SHA-512. */
class CHMAC_SHA512 {
private:
CSHA512 outer;
CSHA512 inner;
public:
CHMAC_SHA512(const unsigned char *key, size_t keylen);
CHMAC_SHA512& Write(const unsigned char *data, size_t len) {
inner.Write(data, len);
return *this;
}
void Finalize(unsigned char *hash);
};
#endif