}

    String getSha1(File file) throws IOException, NoSuchAlgorithmException {
        byte[] bytes = Files.readAllBytes(file.toPath());

        MessageDigest digest = MessageDigest.getInstance("SHA-1");
        char[] encoded = Hex.encodeHex(digest.digest(bytes));
        return String.copyValueOf(encoded);
    }

import jcifs.smb1.util.transport.Request;
import jcifs.smb1.util.transport.Response;

abstract class ServerMessageBlock extends Response implements Request, SmbConstants {

    static LogStream log = LogStream.getInstance();

    static final byte[] header = { (byte) 0xFF, (byte) 'S', (byte) 'M', (byte) 'B', (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,

    }

    /**
     * Initializes the session manager and starts the cleanup scheduler.
     */
    @PostConstruct
    public void init() {
        // 5 minutes = 300 seconds
        cleanupTask = TimeoutManager.getInstance().addTimeoutTarget(this::cleanupExpiredSessions, 300, true);
        if (logger.isDebugEnabled()) {
            logger.debug("Initialized ChatSessionManager");
        }
    }

    /**

                ttl = Dfs.TTL;
            }
            expiration = System.currentTimeMillis() + ttl * 1000L;
            map = new HashMap();
        }
    }

    static LogStream log = LogStream.getInstance();
    static final boolean strictView = Config.getBoolean("jcifs.smb1.smb.client.dfs.strictView", false);
    static final long TTL = Config.getLong("jcifs.smb1.smb.client.dfs.ttl", 300);

     *
     * @param file
     *            The file to delete.
     */
    public static void deleteInBackground(final File file) {
        if (file != null) {
            TimeoutManager.getInstance().addTimeoutTarget(() -> {
                try {
                    Files.deleteIfExists(file.toPath());
                } catch (final IOException e) {
                    throw new IORuntimeException(e);

    private static final int RESOLVER_LMHOSTS = 3;

    private static int[] resolveOrder;
    private static InetAddress baddr;

    private static LogStream log = LogStream.getInstance();

    static {
        final String ro = Config.getProperty("jcifs.smb1.resolveOrder");
        final InetAddress nbns = NbtAddress.getWINSAddress();

        try {

    }

    /**
     * Get the singleton instance
     *
     * @return SecurityAuditLogger instance
     */
    public static SecurityAuditLogger getInstance() {
        return SingletonHolder.INSTANCE;
    }

    private SecurityAuditLogger() {
        // Initialize event counters
        for (EventType type : EventType.values()) {

            return authenticator;
        }
        try {
            // set some System properties
            final SpnegoFilterConfig config = SpnegoFilterConfig.getInstance(new SpnegoConfig());

            // pre-authenticate
            authenticator = new org.codelibs.spnego.SpnegoAuthenticator(config);

            fessConfig.setSystemPropertyAsBoolean(SPNEGO_INITIALIZED, true);

        }

        return baos.toByteArray();
    }

    private byte[] calculateBindingHash(byte[] bindingInfo) throws IOException {
        try {
            MessageDigest digest = MessageDigest.getInstance("SHA-256");
            return digest.digest(bindingInfo);
        } catch (NoSuchAlgorithmException e) {
            throw new IOException("SHA-256 not available", e);
        }
    }

```java
public class SecureHandleStorage {
    private final SecretKey encryptionKey;
    
    public void saveEncrypted(HandleInfo handle, Path file) throws Exception {
        Cipher cipher = Cipher.getInstance("AES/GCM/NoPadding");
        cipher.init(Cipher.ENCRYPT_MODE, encryptionKey);
        
        ByteArrayOutputStream baos = new ByteArrayOutputStream();