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| author | Pieter Wuille <pieter.wuille@gmail.com> | 2016-05-06 20:41:28 +0200 |
|---|---|---|
| committer | Pieter Wuille <pieter.wuille@gmail.com> | 2016-05-17 20:04:42 +0200 |
| commit | 0b1295b066b9369decb2e664e60b0129dbc30dfb (patch) | |
| tree | 3a02f501e4e3c12877b748304d176aea5da97b49 /src/hash.h | |
| parent | 1f01443567b03ac75a91c810f1733f5c21b5699d (diff) | |
Add SipHash-2-4 primitives to hash
Diffstat (limited to 'src/hash.h')
| -rw-r--r-- | src/hash.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/hash.h b/src/hash.h index 97955c8d5a..600dabec56 100644 --- a/src/hash.h +++ b/src/hash.h @@ -171,4 +171,19 @@ unsigned int MurmurHash3(unsigned int nHashSeed, const std::vector<unsigned char void BIP32Hash(const ChainCode &chainCode, unsigned int nChild, unsigned char header, const unsigned char data[32], unsigned char output[64]); +/** SipHash-2-4, using a uint64_t-based (rather than byte-based) interface */ +class CSipHasher +{ +private: + uint64_t v[4]; + int count; + +public: + CSipHasher(uint64_t k0, uint64_t k1); + CSipHasher& Write(uint64_t data); + uint64_t Finalize() const; +}; + +uint64_t SipHashUint256(uint64_t k0, uint64_t k1, const uint256& val); + #endif // BITCOIN_HASH_H |