hasher.cpp raw

   1  // Copyright (c) 2019-2022 The Limenka 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  #include <crypto/siphash.h>
   6  #include <random.h>
   7  #include <span.h>
   8  #include <util/hasher.h>
   9  
  10  SaltedTxidHasher::SaltedTxidHasher() :
  11      k0{FastRandomContext().rand64()},
  12      k1{FastRandomContext().rand64()} {}
  13  
  14  SaltedOutpointHasher::SaltedOutpointHasher(bool deterministic) :
  15      k0{deterministic ? 0x8e819f2607a18de6 : FastRandomContext().rand64()},
  16      k1{deterministic ? 0xf4020d2e3983b0eb : FastRandomContext().rand64()}
  17  {}
  18  
  19  SaltedSipHasher::SaltedSipHasher() :
  20      m_k0{FastRandomContext().rand64()},
  21      m_k1{FastRandomContext().rand64()} {}
  22  
  23  size_t SaltedSipHasher::operator()(const Span<const unsigned char>& script) const
  24  {
  25      return CSipHasher(m_k0, m_k1).Write(script).Finalize();
  26  }
  27