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 static final int ETYPE_ARCFOUR_HMAC = 23;

 *
 */
public interface SMBSigningDigest {

    /**
     * Performs MAC signing of the SMB. This is done as follows.
     * The signature field of the SMB is overwritten with the sequence number;
     * The MD5 digest of the MAC signing key + the entire SMB is taken;
     * The first 8 bytes of this are placed in the signature field.
     *
     * @param data
     *            The data.
     * @param offset