public void secureWipeKeys() {
        if (this.encryptionKey != null) {
            // Multi-pass secure wipe for enhanced security
            SecureKeyManager.secureWipe(this.encryptionKey);
            this.encryptionKey = null;
        }
        if (this.decryptionKey != null) {
            // Multi-pass secure wipe for enhanced security
            SecureKeyManager.secureWipe(this.decryptionKey);
            this.decryptionKey = null;

 */
package jcifs.util;

import java.security.GeneralSecurityException;
import java.security.KeyStore;
import java.security.SecureRandom;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import javax.security.auth.DestroyFailedException;

import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.SecretKeySpec;
import javax.security.auth.DestroyFailedException;
import javax.security.auth.Destroyable;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Secure credential storage with encryption at rest.
 *
 * Provides secure storage of passwords and other sensitive credentials
 * using AES-GCM encryption with PBKDF2 key derivation.
 *

 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.internal.smb2;

import java.security.GeneralSecurityException;
import java.security.MessageDigest;
import java.util.concurrent.locks.ReentrantLock;

import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

    private static final String MESSAGE =
        "Guava cannot securely create temporary files or directories under SDK versions before"
            + " Jelly Bean. You can create one yourself, either in the insecure default directory"
            + " or in a more secure directory, such as context.getCacheDir(). For more information,"
            + " see the Javadoc for Files.createTempDir().";

@GwtIncompatible
@J2ObjCIncompatible // java.nio.file
public enum RecursiveDeleteOption {
  /**
   * Specifies that the recursive delete should not throw an exception when it can't be guaranteed
   * that it can be done securely, without vulnerability to race conditions (i.e. when the file
   * system does not support {@link SecureDirectoryStream}).
   *
   * <p><b>Warning:</b> On a file system that supports symbolic links, it is possible for an

        // Then
        assertNotNull(nonce1, "First secure nonce should not be null");
        assertNotNull(nonce2, "Second secure nonce should not be null");
        assertFalse(Arrays.equals(nonce1, nonce2), "Secure nonces should be different");
        assertTrue(nonce1.length > 0, "Secure nonce should have proper length");
    }

    @Test
    @DisplayName("Should handle concurrent secure nonce generation safely")

            }
        } finally {
            correctAuth.close();
            wrongAuth.close();
        }
    }

    /**
     * Test that null and empty password comparisons are handled securely.
     */
    @Test
    public void testNullAndEmptyPasswordSecurity() {
        NtlmPasswordAuthenticator auth1 = new NtlmPasswordAuthenticator("domain", "user", (String) null);

# Using TensorFlow Securely

This document discusses the TensorFlow security model. It describes the security
risks to consider when using models, checkpoints or input data for training or
serving. We also provide guidelines on what constitutes a vulnerability in
TensorFlow and how to report them.

This document applies to other repositories in the TensorFlow organization,
covering security practices for the entirety of the TensorFlow ecosystem.

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package jcifs.smb;

import java.nio.charset.StandardCharsets;
import java.security.GeneralSecurityException;
import java.security.MessageDigest;
import java.util.concurrent.atomic.AtomicInteger;

import javax.crypto.Cipher;

import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.util.Arrays;