return ErrNotSupported
	}
	return ErrKeyExists
}

// GenerateKey decrypts req.Ciphertext. The key name req.Name must match the key
// name of the secretKey.
//
// The returned DEK is encrypted using AES-GCM and the ciphertext format is compatible
// with KES and MinKMS.
func (s secretKey) GenerateKey(_ context.Context, req *GenerateKeyRequest) (DEK, error) {
	if req.Name != s.keyID {
		return DEK{}, ErrKeyNotFound

kQyKGUTpDbKLuyYMFsoH73YLjBqNe+UEhPwE+FWpcky1Sp9RTx/oMLpiZaPR
-----END CERTIFICATE-----`,
		shouldFail: true,
	},
	{
		password: "foobar",
		privateKey: `-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: AES-128-CBC,CC483BF11678C35F9F02A1AD85DAE285

nMDFd+Qxk1f+S7LwMitmMofNXYNbCY4L1QEqPOOx5wnjNF1wSxmEkL7+h8W4Y/vb
AQt/7TCcUSuSqEMl45nUIcCbhBos5wz+ShvFiez3qKwmR5HSURvqyN6PIJeAbU+h

// It will be decrypted if needed.
func (o *ObjectInfo) ArchiveInfo(h http.Header) []byte {
	if len(o.UserDefined) == 0 {
		return nil
	}
	z, ok := o.UserDefined[archiveInfoMetadataKey]
	if !ok {
		return nil
	}
	data := []byte(z)
	if v, ok := o.UserDefined[archiveTypeMetadataKey]; ok && v == archiveTypeEnc {
		decrypted, err := o.metadataDecrypter(h)(archiveTypeEnc, data)

				if err != nil {
					errs[idx] = err
					return
				}

				// do not try to verify encrypted content/
				hr, err = hash.NewReader(ctx, encrd, -1, "", "", -1)
				if err != nil {
					errs[idx] = err
					return
				}

				reader, err = reader.WithEncryption(hr, &objectEncryptionKey)

        }
    }

    /**
     * Finds a login user by username and encrypted password.
     *
     * @param username the username to search for
     * @param cipheredPassword the encrypted password to match
     * @return an optional entity containing the found user, or empty if not found
     */

    /**
     * Security mode flags.
     */
    public int securityMode;
    /**
     * Security settings for the session.
     */
    public int security;
    /**
     * Whether the server requires encrypted passwords.
     */
    public boolean encryptedPasswords;
    /**
     * Whether message signing is enabled.
     */
    public boolean signaturesEnabled;
    /**
     * Whether message signing is required.

    }

    /**
     * Stores a web authentication configuration.
     * Parameters are encrypted before storage.
     *
     * @param webAuthentication The web authentication configuration to store
     */
    public void store(final WebAuthentication webAuthentication) {
        webAuthentication.setParameters(ParameterUtil.encrypt(webAuthentication.getParameters()));
        webAuthenticationBhv.insertOrUpdate(webAuthentication, op -> {

	}

	actualSize := data.ActualSize()
	if actualSize < 0 {
		_, encrypted := crypto.IsEncrypted(fi.Metadata)
		compressed := fi.IsCompressed()
		switch {
		case compressed:
			// ... nothing changes for compressed stream.
			// if actualSize is -1 we have no known way to
			// determine what is the actualSize.
		case encrypted:
			decSize, err := sio.DecryptedSize(uint64(n))
			if err == nil {

	// the ciphertext.
	Name string

	// Version is the version of the master used for
	// decryption. If empty, the latest key version
	// is used.
	Version int

	// Ciphertext is the encrypted data that gets
	// decrypted.
	Ciphertext []byte

	// AssociatedData is the crypto. associated data.
	// It must match the data used during encryption
	// or data key generation.
	AssociatedData Context
}

- Configurable: Min/max versions can be set via configuration properties

### SMB3 Encryption Support
- **SMB2 Transform Header**: Encrypted message wrapping
- **AES-CCM/GCM Support**: Both AES-128-CCM (SMB 3.0/3.0.2) and AES-128-GCM (SMB 3.1.1) cipher suites
- **Encryption Context**: Per-session encryption state management