h2f

Documentation

Overview

Package h2f implements https://www.ietf.org/archive/id/draft-irtf-cfrg-hash-to-curve-16.html#name-hash_to_field-implementatio

Index

• func Hash2FieldXMD(h hash.Hashing, in, dst []byte, count, ext, securityLength int, ...) ([]*big.Int, error)
• func Hash2FieldXOF(h xof.Extendable, in, dst []byte, count, ext, securityLength int, ...) ([]*big.Int, error)

Functions

func Hash2FieldXMD

func Hash2FieldXMD(h hash.Hashing, in, dst []byte, count, ext, securityLength int, modulo *big.Int) ([]*big.Int, error)

Hash2FieldXMD hashes the input with the domain separation tag (dst) to an integer under modulo, using an merkle-damgard based expander (e.g. SHA256).

func Hash2FieldXOF

func Hash2FieldXOF(h xof.Extendable, in, dst []byte, count, ext, securityLength int, modulo *big.Int) ([]*big.Int, error)

Hash2FieldXOF hashes the input with the domain separation tag (dst) to an integer under modulo, using an extensible output function (e.g. SHAKE).