actualSeconds = SMBUtil.readInt4(dst, 0);
        assertEquals(expectedSeconds, actualSeconds);
    }

    @Test
    @DisplayName("Test multiple update and digest cycles")
    void testMultipleUpdateDigestCycles() {
        SMB1SigningDigest digest = new SMB1SigningDigest(testMacSigningKey);

        // First cycle
        byte[] data1 = new byte[] { 0x01, 0x02, 0x03, 0x04 };