git / moonbite-core / src/crypto/sha256.h · raw

// Copyright (c) 2014-2018 The Bitcoin Core developers// Distributed under the MIT software license, see the accompanying// file COPYING or http://www.opensource.org/licenses/mit-license.php.#ifndef BITCOIN_CRYPTO_SHA256_H#define BITCOIN_CRYPTO_SHA256_H#include <stdint.h>#include <stdlib.h>#include <string>/** A hasher class for SHA-256. */class CSHA256{private:    uint32_t s[8];    unsigned char buf[64];    uint64_t bytes;public:    static const size_t OUTPUT_SIZE = 32;    CSHA256();    CSHA256& Write(const unsigned char* data, size_t len);    void Finalize(unsigned char hash[OUTPUT_SIZE]);    CSHA256& Reset();};/** Autodetect the best available SHA256 implementation. *  Returns the name of the implementation. */std::string SHA256AutoDetect();/** Compute multiple double-SHA256's of 64-byte blobs. *  output:  pointer to a blocks*32 byte output buffer *  input:   pointer to a blocks*64 byte input buffer *  blocks:  the number of hashes to compute. */void SHA256D64(unsigned char* output, const unsigned char* input, size_t blocks);#endif // BITCOIN_CRYPTO_SHA256_H