@Override
    public boolean canDecrypt(String cipherText) {
        return !cipherText.startsWith("AES:");
    }
@Test
    public void canDecryptShouldAnswerTrueIfPasswordLooksLikeItIsNotAES() {
        assertThat(desEncrypter.canDecrypt("AES:foo:bar")).isFalse();

        assertThat(desEncrypter.canDecrypt("foobar")).isTrue();
    }