decrypt = output;
        return decrypt;
    }


    private static byte[] getHmac ( byte[] data, byte[] key ) throws GeneralSecurityException {
        Key macKey = new SecretKeySpec(key.clone(), KerberosConstants.HMAC_ALGORITHM);
        Mac mac = Mac.getInstance(KerberosConstants.HMAC_ALGORITHM);
        mac.init(macKey);
        return mac.doFinal(data);
    }


    public String getUserRealm () {

            ResourceFilter ff ) throws CIFSException {
        // clone the locator so that the address index is not modified
        SmbResourceLocatorImpl locator = parent.fileLocator.clone();
        CIFSContext tc = parent.getContext();
        URL u = locator.getURL();

        FileEntry[] entries;

    }


    @Override
    public Kerb5Authenticator clone () {
        Kerb5Authenticator auth = new Kerb5Authenticator(getSubject());
        cloneInternal(auth, this);
        return auth;
    }


    /**
     * Clone the context
     * 
     * @param to
     * @param from
     */

    protected byte[] getNTHash () {
        return this.ntHash;
    }


    @Override
    public NtlmPasswordAuthenticator clone () {
        NtlmNtHashAuthenticator cloned = new NtlmNtHashAuthenticator(this.ntHash.clone());
        cloneInternal(cloned, this);
        return cloned;
    }

/**
 * @author mbechler
 *
 */
public interface CredentialsInternal extends Cloneable, Credentials {

    /**
     * 
     * @return a copy of the credentials
     */
    CredentialsInternal clone ();


    /**
     * @param tc
     * @param targetDomain
     * @param host
     * @param initialToken
     * @param doSigning
     * @return a new context
     * @throws SmbException
     */

    protected CIFSContext getContext () {
        return this.context;
    }


    @Override
    public NtlmPasswordAuthentication clone () {
        NtlmPasswordAuthentication cloned = new NtlmPasswordAuthentication();
        cloneInternal(cloned, this);
        return cloned;
    }


    /**
     * @param to
     * @param from
     */

    @Override
    public NtlmPasswordAuthenticator clone () {
        NtlmPasswordAuthenticator cloned = new NtlmPasswordAuthenticator();
        cloneInternal(cloned, this);
        return cloned;
    }


    protected static void cloneInternal ( NtlmPasswordAuthenticator cloned, NtlmPasswordAuthenticator toClone ) {
        cloned.domain = toClone.domain;
        cloned.username = toClone.username;

            return 0;
        return this.b.length;
    }


    /*
     * (non-Javadoc)
     * 
     * @see java.lang.Object#clone()
     */
    @Override
    protected Object clone () throws CloneNotSupportedException {
        return new SecurityBlob(this.b.clone());
    }


    /*
     * (non-Javadoc)
     * 
     * @see java.lang.Object#equals(java.lang.Object)
     */
    @Override

    private HMACT64(HMACT64 hmac) throws CloneNotSupportedException {
        super("HMACT64");
        this.ipad = hmac.ipad;
        this.opad = hmac.opad;
        this.md5 = (MessageDigest) hmac.md5.clone();
    }

    public Object clone() {
        try {
            return new HMACT64(this);
        } catch (CloneNotSupportedException ex) {
            throw new IllegalStateException(ex.getMessage());
        }
    }

        super("HMACT64");
        this.ipad = hmac.ipad;
        this.opad = hmac.opad;
        this.md5 = (MessageDigest) hmac.md5.clone();
    }


    @Override
    public Object clone () {
        try {
            return new HMACT64(this);
        }
        catch ( CloneNotSupportedException ex ) {
            throw new IllegalStateException(ex.getMessage());