// Verifies a hash using DER encoded signature
func Verify(pubKey, signature, hash []byte) (bool, error) {
sig, err := btcec.ParseDERSignature(signature, btcec.S256())
if err != nil {
return false, err
}
pk, err := btcec.ParsePubKey(pubKey, btcec.S256())
if err != nil {
return false, nil
}
return sig.Verify(hash, pk), nil
}
func TestSignatures(t *testing.T) {
for _, test := range signatureTests {
var err error
if test.der {
_, err = btcec.ParseDERSignature(test.sig, btcec.S256())
} else {
_, err = btcec.ParseSignature(test.sig, btcec.S256())
}
if err != nil {
if test.isValid {
t.Errorf("%s signature failed when shouldn't %v",
test.name, err)
} /* else {
t.Errorf("%s got error %v", test.name, err)
} */
continue
}
if !test.isValid {
t.Errorf("%s counted as valid when it should fail",
test.name)
}
}
}
