diff options
Diffstat (limited to 'src/hash.h')
-rw-r--r-- | src/hash.h | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/src/hash.h b/src/hash.h index 3534a400b3..6acab0b161 100644 --- a/src/hash.h +++ b/src/hash.h @@ -194,39 +194,4 @@ 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 */ -class CSipHasher -{ -private: - uint64_t v[4]; - uint64_t tmp; - int count; - -public: - /** Construct a SipHash calculator initialized with 128-bit key (k0, k1) */ - CSipHasher(uint64_t k0, uint64_t k1); - /** Hash a 64-bit integer worth of data - * It is treated as if this was the little-endian interpretation of 8 bytes. - * This function can only be used when a multiple of 8 bytes have been written so far. - */ - CSipHasher& Write(uint64_t data); - /** Hash arbitrary bytes. */ - CSipHasher& Write(const unsigned char* data, size_t size); - /** Compute the 64-bit SipHash-2-4 of the data written so far. The object remains untouched. */ - uint64_t Finalize() const; -}; - -/** Optimized SipHash-2-4 implementation for uint256. - * - * It is identical to: - * SipHasher(k0, k1) - * .Write(val.GetUint64(0)) - * .Write(val.GetUint64(1)) - * .Write(val.GetUint64(2)) - * .Write(val.GetUint64(3)) - * .Finalize() - */ -uint64_t SipHashUint256(uint64_t k0, uint64_t k1, const uint256& val); -uint64_t SipHashUint256Extra(uint64_t k0, uint64_t k1, const uint256& val, uint32_t extra); - #endif // BITCOIN_HASH_H |