/**
 * Kerberos credentials management class that handles authentication through JAAS.
 */
public class KerberosCredentials {

    private Subject subject;

    /**
     * Creates KerberosCredentials using the default JAAS configuration.
     *
     * @throws LoginException if authentication fails
     */
    public KerberosCredentials() throws LoginException {
        this(System.getProperty("jaaslounge.sso.jaas.config"));
    }

                byte[] crypt = encOctets.getOctets();

                if (keys == null) {
                    try {
                        keys = new KerberosCredentials().getKeys();
                    } catch (LoginException e) {
                        throw new PACDecodingException("Login failure", e);
                    }
                }