}

    @AfterEach
    public void tearDown() {
        if (keyManager != null) {
            keyManager.close();
        }
    }

    @Test
    public void testStoreAndRetrieveKey() {
        String sessionId = "test-session-1";
        keyManager.storeSessionKey(sessionId, testKey, "AES");

        SecretKey retrieved = keyManager.getSessionKey(sessionId);