@SuppressWarnings ( "javadoc" )
public class PACDecodingException extends CIFSException {

    private static final long serialVersionUID = 1L;


    public PACDecodingException () {
        this(null, null);
    }


    public PACDecodingException ( String message ) {
        this(message, null);
    }


    public PACDecodingException ( Throwable cause ) {
        this(null, cause);
    }

        return this.pointer;
    }


    public String check ( String string ) throws PACDecodingException {
        if ( this.pointer == 0 && string != null )
            throw new PACDecodingException("Non-empty string");

        int expected = this.length / 2;
        if ( string.length() != expected ) {
            throw new PACDecodingException("Invalid string length, expected " + expected + ", have " + string.length());
        }

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);
    }

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 )

    private static final int MINIMAL_BUFFER_SIZE = 32;

    private byte[] credentialType;


    public PacCredentialType ( byte[] data ) throws PACDecodingException {
        this.credentialType = data;
        if ( !isCredentialTypeCorrect() ) {
            throw new PACDecodingException("Invalid PAC credential type");
        }
    }


    public boolean isCredentialTypeCorrect () {

    /**
     * 
     * @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 )

    public Pac ( byte[] data, Map<Integer, KerberosKey> keys ) throws PACDecodingException {
        byte[] checksumData = data.clone();
        try {
            PacDataInputStream pacStream = new PacDataInputStream(new DataInputStream(new ByteArrayInputStream(data)));

            if ( data.length <= 8 )
                throw new PACDecodingException("Empty PAC");

            int bufferCount = pacStream.readInt();

        return date;
    }


    public PacUnicodeString readUnicodeString () throws IOException, PACDecodingException {
        short length = readShort();
        short maxLength = readShort();
        int pointer = readInt();

        if ( maxLength < length ) {
            throw new PACDecodingException("Malformed string in PAC");
        }

        return new PacUnicodeString(length, maxLength, pointer);

                    throw new PACDecodingException("Missing key");
                }
                return calculateMacHMACAES(usage, key, data);
            }
            else {
                throw new PACDecodingException("Invalid MAC algorithm");
            }
        }
        catch ( GeneralSecurityException e ) {
            throw new PACDecodingException("Failed to calculate MAC", e);
        }
    }