ascon_prf

Documentation

Overview

Package ascon_prf implements the Ascon-Mac, as specified in Section 2.5 of https://eprint.iacr.org/2021/1574.pdf.

Index

• Constants
• Variables
• func NewMac(key []byte) (hash.Hash, error)
• func ValidMAC(message, messageMAC, key []byte) (bool, error)

Constants

const (
	// KeySize is the size of the key used by Ascon-Mac, in bytes.
	KeySize = 16

	// The tag size of Ascon-Mac in bytes.
	TagSize = 16

	// The blocksize of Ascon-Mac in bytes.
	BlockSize = 32
)

Variables

var ErrKeyLen = errors.New("ascon-prf: bad key length")

Functions

func NewMac

func NewMac(key []byte) (hash.Hash, error)

NewMac returns a Ascon-Mac PRF that uses the given 128-bit key.

Errors if the key is not 128 bits.

func ValidMAC

func ValidMAC(message, messageMAC, key []byte) (bool, error)

ValidMAC verifies if the given MAC and key is valid for the given message.

Errors if the key is not 128 bits.