'Signing with another key should let the verification fail.'

def test_sign_different_key(self):

    (otherpub, _) = rsa.newkeys(512)
    message = b('je    moeder')
    signature = pkcs1.sign(message, self.priv, 'SHA-256')
    self.assertRaises(pkcs1.VerificationError, pkcs1.verify, message, signature, otherpub)
