return new KerberosKey(null, keybytes, etype, 0);
    }


    private static void checkBytes ( byte[] expect, byte[] have ) {
        if ( !Arrays.equals(expect, have) ) {
            Assert.fail(String.format("Expect: %s Have: %s", Hexdump.toHexString(expect), Hexdump.toHexString(have)));
        }
    }


    private static void verifyNfold ( int n, String string, String expect ) {