*/
package jcifs.internal.smb2.lease;

import java.security.SecureRandom;
import java.util.Arrays;

/**
 * SMB2 Lease Key
 *
 * Represents a 16-byte lease key used to identify leases in SMB2/SMB3
 * MS-SMB2 2.2.13.2.8
 */
public class Smb2LeaseKey {

    private final byte[] key;
    private static final SecureRandom RANDOM = new SecureRandom();
    private static final int LEASE_KEY_SIZE = 16;

    /**

        Configuration mockConfig = mock(Configuration.class);
        NameServiceClient mockNameServiceClient = mock(NameServiceClient.class);
        NetbiosAddress mockHost = mock(NetbiosAddress.class);
        SecureRandom mockRandom = mock(SecureRandom.class);

        // Create a machine ID (32 bytes)
        byte[] machineId = new byte[32];
        mockRandom.nextBytes(machineId);

        void testDataIntegrity() throws SMBProtocolDecodingException {
            // Create complex test data
            int[] hashAlgos = new int[20];
            byte[] salt = new byte[64];
            SecureRandom random = new SecureRandom();

            for (int i = 0; i < hashAlgos.length; i++) {
                hashAlgos[i] = random.nextInt(65536);
            }
            random.nextBytes(salt);

import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;

import java.security.SecureRandom;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;

import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import java.security.SecureRandom;
import java.util.Arrays;
import java.util.Random;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Nested;
import org.junit.jupiter.api.Test;

    @Test
    @DisplayName("Random access should delegate to underlying configuration")
    void testRandomDelegation() {
        // Given
        SecureRandom expectedRandom = new SecureRandom();
        when(mockDelegate.getRandom()).thenReturn(expectedRandom);

        // When
        SecureRandom result = delegatingConfig.getRandom();

        // Then
        assertSame(expectedRandom, result, "Should return delegated random");

    private final Map<String, SecretKey> sessionKeys = new ConcurrentHashMap<>();
    private final Map<String, byte[]> rawKeys = new ConcurrentHashMap<>();
    private final SecureRandom secureRandom = new SecureRandom();
    private KeyStore keyStore;
    private char[] keyStorePassword;
    private volatile boolean closed = false;

    /**
     * Create a secure key manager without KeyStore
     */

## 4. Data Structures

### 4.1 Lease Key Structure
```java
package jcifs.internal.smb2.lease;

import java.security.SecureRandom;
import java.util.Arrays;

public class Smb2LeaseKey {
    private final byte[] key;  // 16-byte lease key
    private static final SecureRandom random = new SecureRandom();
    
    public Smb2LeaseKey() {
        this.key = new byte[16];
        random.nextBytes(this.key);
    }
    

import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import java.security.SecureRandom;
import java.util.Arrays;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Nested;
import org.junit.jupiter.api.Test;

import static org.mockito.ArgumentMatchers.anyInt;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import java.security.SecureRandom;
import java.util.Arrays;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Nested;
import org.junit.jupiter.api.Test;