public KerberosToken ( byte[] token ) throws PACDecodingException {
        this(token, null);
    }


    public KerberosToken ( byte[] token, KerberosKey[] keys ) throws PACDecodingException {

        if ( token.length <= 0 )
            throw new PACDecodingException("Empty kerberos token");

        byte[] content;
        try ( ASN1InputStream stream = new ASN1InputStream(token) ) {