if ( type == PacSignature.KERB_CHECKSUM_HMAC_MD5 ) {
                KerberosKey key = keys.get(PacSignature.ETYPE_ARCFOUR_HMAC);
                if ( key == null ) {
                    throw new PACDecodingException("Missing key");
                }
                return calculateMacArcfourHMACMD5(usage, key, data);
            }

 */
package jcifs.pac;


import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.IOException;


@SuppressWarnings ( "javadoc" )
public class PacSignature {

    public static final int KERB_CHECKSUM_HMAC_MD5 = 0xFFFFFF76;
    public static final int HMAC_SHA1_96_AES128 = 0x0000000F;
    public static final int HMAC_SHA1_96_AES256 = 0x00000010;

public class Pac {

    private static final Logger log = LoggerFactory.getLogger(Pac.class);

    private PacLogonInfo logonInfo;
    private PacCredentialType credentialType;
    private PacSignature serverSignature;
    private PacSignature kdcSignature;


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