byte[] content;
        try ( ASN1InputStream stream = new ASN1InputStream(token) ) {
            content = ASN1Util.readUnparsedTagged(0, 0x8000, stream);
        }catch ( IOException e ) {
            throw new PACDecodingException("Malformed kerberos token", e);
        }

        try ( ASN1InputStream stream = new ASN1InputStream(content) ) {

    public KerberosRelevantAuthData ( byte[] token, Map<Integer, KerberosKey> keys ) throws PACDecodingException {
        ASN1Sequence authSequence;
        try {
            try ( ASN1InputStream stream = new ASN1InputStream(new ByteArrayInputStream(token)) ) {
                authSequence = ASN1Util.as(ASN1Sequence.class, stream);
            }
        }
        catch ( IOException e ) {

            throw new IllegalStateException(ex.getMessage());
        }
    }


    @Override
    protected void parse ( byte[] token ) throws IOException {
        try ( ASN1InputStream der = new ASN1InputStream(token) ) {
            ASN1TaggedObject tagged = (ASN1TaggedObject) der.readObject();
            ASN1Sequence sequence = ASN1Sequence.getInstance(tagged, true);

     * @param stream
     * @return next object from stream cast to type
     * @throws PACDecodingException
     * @throws IOException
     */
    public static <T extends ASN1Primitive> T as ( Class<T> type, ASN1InputStream stream ) throws PACDecodingException, IOException {
        return as(type, stream.readObject());
    }


    /**
     *
     * @param type
     * @param tagged

            throw new IllegalStateException(ex.getMessage());
        }
    }


    @Override
    protected void parse ( byte[] token ) throws IOException {

        try ( ASN1InputStream is = new ASN1InputStream(token) ) {
            ASN1TaggedObject constructed = (ASN1TaggedObject) is.readObject();
            if ( constructed == null || constructed.getTagClass() != BERTags.APPLICATION ||

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

        ASN1Sequence sequence;
        try {
            try ( ASN1InputStream stream = new ASN1InputStream(new ByteArrayInputStream(token)) ) {
                sequence = ASN1Util.as(ASN1Sequence.class, stream);
            }
        }
        catch ( IOException e ) {

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

        ASN1Sequence sequence;
        try {
            try ( ASN1InputStream stream = new ASN1InputStream(new ByteArrayInputStream(token)) ) {
                sequence = ASN1Util.as(ASN1Sequence.class, stream);
            }
        }
        catch ( IOException e ) {

    private List<KerberosAuthData> userAuthorizations;


    public KerberosEncData ( byte[] token, Map<Integer, KerberosKey> keys ) throws PACDecodingException {
        ASN1InputStream stream = new ASN1InputStream(new ByteArrayInputStream(token));
        ASN1TaggedObject derToken;
        try {
            derToken = ASN1Util.as(ASN1TaggedObject.class, stream);