assertNotNull(request.getDialects());
        assertNotNull(request.getClientGuid());
        assertNotNull(request.getNegotiateContexts());
        assertNotNull(request.getPreauthSalt());

        // Verify data integrity
        assertEquals(16, request.getClientGuid().length);
        assertEquals(32, request.getPreauthSalt().length);
        assertTrue(request.getDialects().length > 0);

        req.setFlags(Smb2IoctlRequest.SMB2_O_IOCTL_IS_FSCTL);
        req.setInputData(new ValidateNegotiateInfoRequest(negoReq.getCapabilities(), negoReq.getClientGuid(),
                (short) negoReq.getSecurityMode(), negoReq.getDialects()));

        Smb2IoctlResponse resp;
        try {
            resp = send(req, RequestParam.NO_RETRY);
        } catch (final SMBSignatureValidationException e) {

            DialectVersion.SMB1.getDialect();
        });

        // SMB2+ versions should have valid dialect codes
        assertTrue(DialectVersion.SMB202.getDialect() > 0);
        assertTrue(DialectVersion.SMB210.getDialect() > 0);
        assertTrue(DialectVersion.SMB300.getDialect() > 0);
        assertTrue(DialectVersion.SMB302.getDialect() > 0);
        assertTrue(DialectVersion.SMB311.getDialect() > 0);

        return this.securityMode;
    }

    /**
     * Gets the negotiated SMB dialect
     *
     * @return the SMB dialect negotiated with the server
     */
    public int getDialect() {
        return this.dialect;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.Decodable#decode(byte[], int, int)
     */
    @Override

        // Then
        assertNotNull(context, "Encryption context should be created");
        assertEquals(1, context.getCipherId(), "Cipher ID should match");
        assertEquals(DialectVersion.SMB311, context.getDialect(), "Dialect should match");
    }

    @Test
    @DisplayName("Should return correct cipher ID")
    void testGetCipherId() {
        // When
        int cipherId = encryptionContext.getCipherId();

            assertEquals(EncryptionNegotiateContext.CIPHER_AES128_CCM, ccm.getCipherId());
            assertEquals(DialectVersion.SMB300, ccm.getDialect());

            // SMB 3.1.1 -> default AES-128-GCM when server did not choose
            Smb2NegotiateResponse smb311 = new Smb2NegotiateResponse(cfg);

     */
    public int getCipherId() {
        return this.cipherId;
    }

    /**
     * Get the SMB dialect version
     * @return the SMB dialect version
     */
    public DialectVersion getDialect() {
        return this.dialect;
    }

    /**
     * Set key rotation limits
     *
     * @param bytesLimit maximum bytes to encrypt before rotation (0 to disable)

        DialectVersion selected = null;
        for (final DialectVersion dv : DialectVersion.values()) {
            if (!dv.isSMB2()) {
                continue;
            }
            if (dv.getDialect() == getDialectRevision()) {
                selected = dv;
            }
        }

        if (selected == null) {
            log.debug("Server returned an unknown dialect");
            return false;

        }

        try {
            // Derive encryption and decryption keys using SMB3 KDF
            final int dialectInt = dialect.getDialect();
            final byte[] encryptionKey = Smb3KeyDerivation.deriveEncryptionKey(dialectInt, sessionKey, preauthHash);