if (cipherId == -1) {
                // Default to AES-128-GCM for SMB 3.1.1 if no cipher negotiated
                cipherId = EncryptionNegotiateContext.CIPHER_AES128_GCM;
            }
        } else if (dialect.atLeast(DialectVersion.SMB300)) {
            // SMB 3.0/3.0.2 only supports AES-128-CCM
            cipherId = EncryptionNegotiateContext.CIPHER_AES128_CCM;
        } else {

```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();
        try (CipherOutputStream cos = new CipherOutputStream(baos, cipher);

     * @since 2.2
     */
    String getPreferredCiphers();

    /**
     * Property {@code jcifs.smb.client.aes256Enabled} (boolean, default true)
     *
     * @return whether AES-256 encryption ciphers are enabled for SMB3.x
     * @since 2.2
     */
    boolean isAES256Enabled();

    /**
     * Property {@code jcifs.smb.client.compressionEnabled} (boolean, default false)
     *

###  Introduced KMS v2

Introduce KMS v2alpha1 API to add performance, rotation, and observability improvements. Encrypt data at rest (ie Kubernetes `Secrets`) with DEK using AES-GCM instead of AES-CBC for kms data encryption. No user action is required. Reads with AES-GCM and AES-CBC will continue to be allowed. See the guide [Using a KMS provider for data encryption](https://kubernetes.io/docs/tasks/administer-cluster/kms-provider/) for more information.

    protected boolean compressionEnabled = false;
    /** Preferred encryption ciphers in order of preference */
    protected String preferredCiphers = "AES_128_GCM,AES_128_CCM,AES_256_GCM,AES_256_CCM";
    /** Whether AES-256 encryption is enabled */
    protected boolean aes256Enabled = true;
    /** Whether to use SMB2/SMB3 leases for caching */
    protected boolean useLease = true;
    /** Lease timeout in milliseconds */

encrypting transformer for storing secrets encrypted at rest ([#41939](https://github.com/kubernetes/kubernetes/pull/41939), [@smarterclayton](https://github.com/smarterclayton))

  * Add secretbox and AES-CBC encryption modes to at rest encryption. AES-CBC is considered superior to AES-GCM because it is resistant to nonce-reuse attacks, and secretbox uses Poly1305 and XSalsa20. ([#46916](https://github.com/kubernetes/kubernetes/pull/46916), [@smarterclayton](https://github.com/smarterclayton))...

search_engine.password=
# Interval (ms) for heartbeat checks to the search engine.
search_engine.heartbeat_interval=10000

# Cipher algorithm used for encryption.
app.cipher.algorithm=aes
# Secret key for encryption (change this value for production).
app.cipher.key=___change__me___
# Algorithm for digest calculation.
app.digest.algorithm=sha256
# Regex pattern for properties to encrypt.

* Deprecated Binding objects in 1.7. ([#47041](https://github.com/kubernetes/kubernetes/pull/47041), [@k82cn](https://github.com/k82cn))

    /** The key of the configuration. e.g. 10000 */
    String search_engine_heartbeat_interval = "search_engine.heartbeat_interval";

    /** The key of the configuration. e.g. aes */
    String APP_CIPHER_ALGORITHM = "app.cipher.algorithm";

    /** The key of the configuration. e.g. ___change__me___ */
    String APP_CIPHER_KEY = "app.cipher.key";

- '`kubeadm`: added validation to verify that the `CertificateKey` is a valid hex
  encoded AES key.' ([#120064](https://github.com/kubernetes/kubernetes/pull/120064), [@SataQiu](https://github.com/SataQiu))
- A customizable `OrderedScoreFuncs()` function was introduced. Out-of-tree plugins