src/crypto/sha512.h

   1 // Copyright (c) 2014 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 <stdint.h>
   9 #include <stdlib.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;
  18
  19 public:
  20     static const 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 };
  27
  28 #endif // BITCOIN_CRYPTO_SHA512_H