assertNotNull(type3.getMasterKey());
        assertEquals(16, type3.getMasterKey().length);
    }

    @Test
    @DisplayName("Should handle extended session security")
    void testExtendedSessionSecurity() throws Exception {
        // Given
        Type2Message type2 = createMockType2Message();
        int flags = NtlmFlags.NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY | NtlmFlags.NTLMSSP_NEGOTIATE_NTLM;