assertThrows(NullPointerException.class, () -> {
            transformHeader.setNonce(null);
        });
    }

    @Test
    @DisplayName("Should handle invalid nonce length")
    void testInvalidNonceLength() {
        // Given
        byte[] shortNonce = new byte[8];
        byte[] longNonce = new byte[32];

        // When/Then
        assertThrows(IllegalArgumentException.class, () -> {