import jcifs.pac.ASN1Util;
import jcifs.pac.PACDecodingException;


@SuppressWarnings ( "javadoc" )
public class KerberosToken {

    private KerberosApRequest apRequest;


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


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

        if ( token.length <= 0 )

import org.bouncycastle.asn1.*;

import jcifs.pac.ASN1Util;
import jcifs.pac.PACDecodingException;


@SuppressWarnings ( "javadoc" )
public class KerberosApRequest {

    private byte apOptions;
    private KerberosTicket ticket;


    public KerberosApRequest ( byte[] token, KerberosKey[] keys ) throws PACDecodingException {
        this(parseSequence(token), keys);
    }

    /**
     * 
     * @param type
     * @param object
     * @return object cast to type
     * @throws PACDecodingException
     */
    public static <T> T as ( Class<T> type, Object object ) throws PACDecodingException {
        if ( !type.isInstance(object) ) {
            throw new PACDecodingException("Incompatible object types " + type + " " + object.getClass());
        }

        return type.cast(object);
    }

import jcifs.pac.ASN1Util;
import jcifs.pac.PACDecodingException;


@SuppressWarnings ( "javadoc" )
public class KerberosTicket {

    private String serverPrincipalName;
    private String serverRealm;
    private KerberosEncData encData;


    public KerberosTicket ( byte[] token, byte apOptions, KerberosKey[] keys ) throws PACDecodingException {
        if ( token.length <= 0 )

import org.bouncycastle.asn1.*;

import jcifs.pac.ASN1Util;
import jcifs.pac.PACDecodingException;


@SuppressWarnings ( "javadoc" )
public class KerberosRelevantAuthData extends KerberosAuthData {

    private List<KerberosAuthData> authorizations;


    public KerberosRelevantAuthData ( byte[] token, Map<Integer, KerberosKey> keys ) throws PACDecodingException {
        ASN1Sequence authSequence;
        try {

    @Test
    public void testRC4Checksum1 () throws PACDecodingException, GeneralSecurityException {
        String data = "fifteen sixteen";
        String key = "F7D3A155AF5E238A0B7A871A96BA2AB2";
        String expect = "6F65117E732E724D60FC2A9744CEAE43";
        testRC4HMac(5, data, key, expect);
    }


    @Test
    public void testRC4Checksum2 () throws PACDecodingException, GeneralSecurityException {

        ASN1InputStream stream = new ASN1InputStream(new ByteArrayInputStream(token));
        ASN1TaggedObject derToken;
        try {
            derToken = ASN1Util.as(ASN1TaggedObject.class, stream);
            if ( derToken.getTagClass() != BERTags.APPLICATION )
                throw new PACDecodingException("Malformed kerberos ticket");
            stream.close();