}

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

        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);