1  // Copyright (c) 2019-2022 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  #include <crypto/siphash.h>
 6  #include <random.h>
 7  #include <span.h>
 8  #include <util/hasher.h>
 9  
10  SaltedTxidHasher::SaltedTxidHasher() : k0(GetRand<uint64_t>()), k1(GetRand<uint64_t>()) {}
11  
12  SaltedOutpointHasher::SaltedOutpointHasher(bool deterministic) :
13      k0(deterministic ? 0x8e819f2607a18de6 : GetRand<uint64_t>()),
14      k1(deterministic ? 0xf4020d2e3983b0eb : GetRand<uint64_t>())
15  {}
16  
17  SaltedSipHasher::SaltedSipHasher() : m_k0(GetRand<uint64_t>()), m_k1(GetRand<uint64_t>()) {}
18  
19  size_t SaltedSipHasher::operator()(const Span<const unsigned char>& script) const
20  {
21      return CSipHasher(m_k0, m_k1).Write(script).Finalize();
22  }