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Documentation

Index

• Constants
• func BitmaskContains(bitmask, v int) bool
• func CalcHash(features [][]byte, bitmask int) []byte
• func GenerateSearchHashes(featureFilters [][][]byte, bitmask int) map[string]struct{}
• func SelectSearchBitmask(featureFilters [][][]byte, maxIterators uint) int
• type KeccakState

Constants

const HashSize = 5 // ceil(ln(N / P) / ln(256))

N = 1e9 (Expected number of entries) P = 0.001 (Desired false-positive probability)

Functions

func BitmaskContains

func BitmaskContains(bitmask, v int) bool

func CalcHash

func CalcHash(features [][]byte, bitmask int) []byte

func GenerateSearchHashes

func GenerateSearchHashes(featureFilters [][][]byte, bitmask int) map[string]struct{}

func SelectSearchBitmask

func SelectSearchBitmask(featureFilters [][][]byte, maxIterators uint) int

Types

type KeccakState

type KeccakState interface {
	hash.Hash
	Read([]byte) (int, error)
}