Bitcoin Core  22.99.0
P2P Digital Currency
bytevectorhash.cpp
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1 // Copyright (c) 2018 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 <util/bytevectorhash.h>
8 
10 {
11  GetRandBytes(reinterpret_cast<unsigned char*>(&m_k0), sizeof(m_k0));
12  GetRandBytes(reinterpret_cast<unsigned char*>(&m_k1), sizeof(m_k1));
13 }
14 
15 size_t ByteVectorHash::operator()(const std::vector<unsigned char>& input) const
16 {
17  return CSipHasher(m_k0, m_k1).Write(input.data(), input.size()).Finalize();
18 }
ByteVectorHash::m_k1
uint64_t m_k1
Definition: bytevectorhash.h:19
ByteVectorHash::ByteVectorHash
ByteVectorHash()
Definition: bytevectorhash.cpp:9
CSipHasher
SipHash-2-4.
Definition: siphash.h:13
siphash.h
random.h
CSipHasher::Finalize
uint64_t Finalize() const
Compute the 64-bit SipHash-2-4 of the data written so far.
Definition: siphash.cpp:76
GetRandBytes
void GetRandBytes(unsigned char *buf, int num) noexcept
Overall design of the RNG and entropy sources.
Definition: random.cpp:584
ByteVectorHash::operator()
size_t operator()(const std::vector< unsigned char > &input) const
Definition: bytevectorhash.cpp:15
bytevectorhash.h
ByteVectorHash::m_k0
uint64_t m_k0
Definition: bytevectorhash.h:19
CSipHasher::Write
CSipHasher & Write(uint64_t data)
Hash a 64-bit integer worth of data It is treated as if this was the little-endian interpretation of ...
Definition: siphash.cpp:28