import java.util.List;

import jcifs.CIFSException;
import jcifs.internal.util.SMBUtil;


/**
 * @author mbechler
 *
 */
public final class AvPairs {

    private AvPairs () {}


    /**
     * Decode a list of AvPairs
     * 
     * @param data
     * @return individual pairs
     * @throws CIFSException
     */
    public static List<AvPair> decode ( byte[] data ) throws CIFSException {

            byte[] ntlmClientChallengeInfo = type2.getTargetInformation();
            List<AvPair> avPairs = ntlmClientChallengeInfo != null ? AvPairs.decode(ntlmClientChallengeInfo) : null;

            // if targetInfo has an MsvAvTimestamp
            // client should not send LmChallengeResponse
            boolean haveTimestamp = AvPairs.contains(avPairs, AvPair.MsvAvTimestamp);
            if ( !haveTimestamp ) {

     * @param serverChallenge
     * @param clientChallenge
     * @param nanos1601
     * @param avPairs
     * @return the calculated response
     */
    public static byte[] getNTLMv2Response ( byte[] responseKeyNT, byte[] serverChallenge, byte[] clientChallenge, long nanos1601, byte[] avPairs ) {
        int avPairsLength = avPairs != null ? avPairs.length : 0;
        byte[] temp = new byte[28 + avPairsLength + 4];