text: /*
   * Copyright (c) 2010 SURFnet bv
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
   * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
   * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
   * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
   * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
   * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  /*****************************************************************************
   HashAlgorithm.cpp
  
   Base class for hash algorithm classes
   *****************************************************************************/
  
  #include "config.h"
  #include "HashAlgorithm.h"
  
  // Base constructor
  HashAlgorithm::HashAlgorithm()
  {
  	currentOperation = NONE;
  }
  
  // Hashing functions
  bool HashAlgorithm::hashInit()
  {
  	if (currentOperation != NONE)
  	{
  		return false;
  	}
  
  	currentOperation = HASHING;
  
  	return true;
  }
  
  bool HashAlgorithm::hashUpdate(const ByteString& /*data*/)
  {
  	if (currentOperation != HASHING)
  	{
  		return false;
  	}
  
  	return true;
  }
  
  bool HashAlgorithm::hashFinal(ByteString& /*hashedData*/)
  {
  	if (currentOperation != HASHING)
  	{
  		return false;
  	}
  
  	currentOperation = NONE;
  
  	return true;
  }
  
  