// Sig is signed message, msg is raw message
func CheckSig(idKey interfaces.IHash, pub []byte, msg []byte, sig []byte) bool {
var pubFix [32]byte
var sigFix [64]byte
copy(pubFix[:], pub[:32])
copy(sigFix[:], sig[:64])
pre := make([]byte, 0)
pre = append(pre, []byte{0x01}...)
pre = append(pre, pubFix[:]...)
id := primitives.Shad(pre)
if id.IsSameAs(idKey) {
return ed.VerifyCanonical(&pubFix, msg, &sigFix)
} else {
return false
}
}
func TestCheckSig(t *testing.T) {
priv := testHelper.NewPrivKey(1)
msg := []byte("Hello!")
pub := testHelper.PrivateKeyToEDPub(priv)
pre := []byte{0x01}
pre = append(pre, pub...)
id := primitives.Shad(pre)
sig := primitives.Sign(priv, msg)
if CheckSig(id, pub, msg, sig) == false {
t.Error("Valid signature not valid")
}
sig[0] += 1
if CheckSig(id, pub, msg, sig) == true {
t.Error("Invalid signature valid")
}
}
func (w RCD_1) GetAddress() (interfaces.IAddress, error) {
data := []byte{1}
data = append(data, w.PublicKey[:]...)
return CreateAddress(primitives.Shad(data)), nil
}
