content: /*
   * © 2017 AgNO3 Gmbh & Co. KG
   * 
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   * 
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   * 
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  package jcifs.internal;
  
  
  /**
   * @author mbechler
   *
   */
  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
       *            The starting offset at which the SMB header begins.
       * @param length
       *            The length of the SMB data starting at offset.
       * @param request
       *            request message
       * @param response
       *            response message
       */
      void sign ( byte[] data, int offset, int length, CommonServerMessageBlock request, CommonServerMessageBlock response );
  
  
      /**
       * Performs MAC signature verification. This calculates the signature
       * of the SMB and compares it to the signature field on the SMB itself.
       *
       * @param data
       *            The data.
       * @param offset
       *            The starting offset at which the SMB header begins.
       * @param length
       * @param extraPad
       *            extra padding to include in signature
       * @param msg
       *            The message to verify
       * @return whether verification was unsuccessful
       */
      boolean verify ( byte[] data, int offset, int length, int extraPad, CommonServerMessageBlock msg );
  
  }