*/
public class PreauthIntegrityServiceTest {

    private PreauthIntegrityService preauthService;
    private SecureRandom secureRandom;

    @BeforeEach
    public void setUp() {
        secureRandom = new SecureRandom();
        preauthService = new PreauthIntegrityService(secureRandom, PreauthIntegrityService.HASH_ALGO_SHA512, true);
    }

    @AfterEach
    public void tearDown() {

    }

    private static final byte[] DEFAULT_ADDRESS = new byte[] { (byte) 127, (byte) 0, (byte) 0, (byte) 1 };

    private static final SecureRandom RANDOM = new SecureRandom();

    private static final String BASE = StringUtil.toHex(getAddress()) + StringUtil.toHex(System.identityHashCode(RANDOM));

    /**
     * Creates a UUID.
     *
     * @return the UUID string
     */
    public static String create() {

        byte[] shortFileId = new byte[8];
        byte[] standardFileId = new byte[16];
        byte[] longFileId = new byte[32];

        new SecureRandom().nextBytes(shortFileId);
        new SecureRandom().nextBytes(standardFileId);
        new SecureRandom().nextBytes(longFileId);

        RequestWithFileId request = new Smb2CloseRequest(mockConfig, emptyFileId);

    private static final int GCM_IV_SIZE = 12;
    private static final int SALT_SIZE = 32;
    private static final int PBKDF2_ITERATIONS = 100_000;

    private final SecureRandom secureRandom = new SecureRandom();
    private volatile SecretKey masterKey;
    private volatile byte[] salt;
    private volatile boolean destroyed = false;

    /**
     * Initialize secure credential storage with a master password

     */
    public PreauthIntegrityService(SecureRandom secureRandom, int hashAlgorithm, boolean enforceIntegrity) {
        this.secureRandom = secureRandom != null ? secureRandom : new SecureRandom();
        this.selectedHashAlgorithm = hashAlgorithm;
        this.enforceIntegrity = enforceIntegrity;
    }

    /**
     * Generates a new preauth salt for SMB 3.1.1 negotiation.
     *

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.helper;

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

import org.apache.commons.lang3.RandomStringUtils;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.exception.InvalidAccessTokenException;

    void setUp() {
        // Initialize test keys
        sessionKey = new byte[16]; // 128-bit session key
        preauthIntegrity = new byte[64]; // Preauth integrity hash
        new SecureRandom().nextBytes(sessionKey);
        new SecureRandom().nextBytes(preauthIntegrity);
    }

    @Test
    @DisplayName("Should derive signing key for SMB 3.0.0 dialect")
    void testDeriveSigningKey_SMB300() {
        // Given

        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);

    @BeforeEach
    void setUp() {
        // Initialize test keys
        testEncryptionKey = new byte[16]; // 128-bit key
        testDecryptionKey = new byte[16]; // 128-bit key
        new SecureRandom().nextBytes(testEncryptionKey);
        new SecureRandom().nextBytes(testDecryptionKey);

        // Create encryption context with required parameters

 */
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;

    /**