eth2shuffle

Documentation

Index

• func PermuteIndex(hashFn HashFn, rounds uint8, index uint64, listSize uint64, seed [32]byte) uint64
• func ShuffleList[T any](hashFn HashFn, input []T, rounds uint8, seed [32]byte)
• func UnpermuteIndex(hashFn HashFn, rounds uint8, index uint64, listSize uint64, seed [32]byte) uint64
• func UnshuffleList[T any](hashFn HashFn, input []T, rounds uint8, seed [32]byte)
• type HashFn

Functions

func PermuteIndex

func PermuteIndex(hashFn HashFn, rounds uint8, index uint64, listSize uint64, seed [32]byte) uint64

Permute index, i.e. shuffle an individual list item without allocating a complete list. Returns the index in the would-be shuffled list.

func ShuffleList

func ShuffleList[T any](hashFn HashFn, input []T, rounds uint8, seed [32]byte)

Shuffles the list

func UnpermuteIndex

func UnpermuteIndex(hashFn HashFn, rounds uint8, index uint64, listSize uint64, seed [32]byte) uint64

Inverse of PermuteIndex, returns original index when given the same shuffling context parameters and permuted index.

func UnshuffleList

func UnshuffleList[T any](hashFn HashFn, input []T, rounds uint8, seed [32]byte)

Un-shuffles the list

Types

type HashFn

type HashFn func(input []byte) []byte