*/
    public static String encode(final byte[] inData) {
        if (ArrayUtil.isEmpty(inData)) {
            return "";
        }
        return Base64.getEncoder().encodeToString(inData);
    }

    /**
     * Decodes data encoded in Base64.
     * <p>
     * This method uses {@link java.util.Base64.Decoder} for decoding.
     * </p>
     *
     * @param inData

        assertNotNull(id);
        assertEquals(Base64.getEncoder().encodeToString(text.getBytes(CoreLibConstants.CHARSET_UTF_8)), id);

        // Test empty text
        String emptyText = "";
        String emptyId = SuggestUtil.createSuggestTextId(emptyText);
        assertNotNull(emptyId);
        assertEquals(Base64.getEncoder().encodeToString(emptyText.getBytes(CoreLibConstants.CHARSET_UTF_8)), emptyId);

        if (StringUtil.isNotBlank(username) && StringUtil.isNotBlank(password)) {
            final String value = username + ":" + password;
            final String basicAuth = "Basic " + java.util.Base64.getEncoder().encodeToString(value.getBytes(StandardCharsets.UTF_8));
            request.header("Authorization", basicAuth);
        }
        if (sslSocketFactory != null) {
            request.sslSocketFactory(sslSocketFactory);

     */
    public String encryptToString(char[] plaintext) throws GeneralSecurityException {
        byte[] encrypted = encryptCredentials(plaintext);
        return Base64.getEncoder().encodeToString(encrypted);
    }

    /**
     * Decrypt credentials from a base64 string
     *
     * @param encryptedString base64 encoded encrypted credentials
     * @return decrypted credentials

        }

        // Total message length is 154 bytes
        byte[] finalMessage = new byte[154];
        System.arraycopy(message, 0, finalMessage, 0, 154);

        return Base64.getEncoder().encodeToString(finalMessage);
    }

    @BeforeEach
    public void setUp() throws UnknownHostException {
        ntlmSsp = new NtlmSsp();

    /** Settings ID. */
    protected final String settingsId;
    /** Suggest settings. */
    protected final SuggestSettings settings;

    private static final Base64.Encoder encoder = Base64.getEncoder();

    /**
     * Constructor.
     * @param settings Suggest settings
     * @param client OpenSearch client
     * @param settingsIndexName Settings index name
     * @param settingsId Settings ID

 */
public final class SuggestUtil {
    private static final int MAX_QUERY_TERM_NUM = 5;
    private static final int MAX_QUERY_TERM_LENGTH = 48;

    private static final Base64.Encoder encoder = Base64.getEncoder();

    private static final int ID_MAX_LENGTH = 445;

    /**
     * Private constructor to prevent instantiation.
     */
    private SuggestUtil() {
    }

    /**

        innerContent.write(kerberosOid.getEncoded());
        innerContent.write(0x01); // magic byte 1
        innerContent.write(0x00); // magic byte 2

        // Add a sequence instead of APPLICATION tagged object
        DERSequence wrongTag = new DERSequence(new ASN1Encodable[] { new ASN1Integer(5) });
        innerContent.write(wrongTag.getEncoded());

        byte[] content = innerContent.toByteArray();

        elementVector.add(new DERTaggedObject(1, new DEROctetString(new byte[] { 0x01, 0x02 }))); // authData
        authVector.add(new DERSequence(elementVector));

        byte[] token = new DERSequence(authVector).getEncoded();
        Map<Integer, KerberosKey> keys = new HashMap<>();

        // 2. WHEN
        KerberosRelevantAuthData relevantAuthData = new KerberosRelevantAuthData(token, keys);

        // 3. THEN

        vector.add(new DERTaggedObject(10, new DERSequence(authDataVector)));

        DERSequence sequence = new DERSequence(vector);
        byte[] encoded = new DERTaggedObject(false, BERTags.APPLICATION, 1, sequence).getEncoded();

        KerberosEncData encData = new KerberosEncData(encoded, Collections.emptyMap());

        assertEquals("TEST.REALM", encData.getUserRealm());
        assertEquals("testuser", encData.getUserPrincipalName());