chameleon

README

Chameleon Hash

A Go implementation of Chameleon Hash

Tests

$ go test .

Benchmarks

$ go test -timeout 1h -bench=. -benchtime=1m

Reference

• Chameleon Hash: http://cryptowiki.net/index.php?title=Redactable_blockchain#Chameleon_Hash_Functions

Documentation

Index

• Variables
• func ChamHash(msg, r *big.Int, pk *ecdsa.PublicKey) *ecdsa.PublicKey
• func FindCollisionR(msg, newMsg, r, sk *big.Int) *big.Int

Variables

var DefaultCurveType = elliptic.P256()

Functions

func ChamHash

func ChamHash(msg, r *big.Int, pk *ecdsa.PublicKey) *ecdsa.PublicKey

ChamHash input message and random r, output hash

func FindCollisionR

func FindCollisionR(msg, newMsg, r, sk *big.Int) *big.Int

FindCollisionR given M' and r, find r' such that hash(M',r')=hash(M,r)