Line data    Source code

       1              : // Copyright (c) 2014-2022 The Bitcoin Core developers
       2              : // Distributed under the MIT software license, see the accompanying
       3              : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       4              : 
       5              : #ifndef BITCOIN_CRYPTO_SHA512_H
       6              : #define BITCOIN_CRYPTO_SHA512_H
       7              : 
       8              : #include <cstdlib>
       9              : #include <stdint.h>
      10              : 
      11              : /** A hasher class for SHA-512. */
      12              : class CSHA512
      13              : {
      14              : private:
      15              :     uint64_t s[8];
      16              :     unsigned char buf[128];
      17              :     uint64_t bytes{0};
      18              : 
      19              : public:
      20              :     static constexpr size_t OUTPUT_SIZE = 64;
      21              : 
      22              :     CSHA512();
      23              :     CSHA512& Write(const unsigned char* data, size_t len);
      24              :     void Finalize(unsigned char hash[OUTPUT_SIZE]);
      25              :     CSHA512& Reset();
      26          207 :     uint64_t Size() const { return bytes; }
      27              : };
      28              : 
      29              : #endif // BITCOIN_CRYPTO_SHA512_H