text: /* The copyright in this software is being made available under the BSD
   * License, included below. This software may be subject to other third party
   * and contributor rights, including patent rights, and no such rights are
   * granted under this license.
   *
   * Copyright (c) 2010-2015, ITU/ISO/IEC
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   *  * Redistributions of source code must retain the above copyright notice,
   *    this list of conditions and the following disclaimer.
   *  * 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.
   *  * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
   *    be used to endorse or promote products derived from this software without
   *    specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER OR CONTRIBUTORS
   * 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.
   */
  #pragma once
  #include "libmd5.h"
  #include <string>
  
  //! \ingroup libMD5
  //! \{
  
  static const UInt MD5_DIGEST_STRING_LENGTH=16;
  
  class MD5
  {
  public:
    /**
     * initialize digest state
     */
    MD5()
    {
      MD5Init(&m_state);
    }
  
    /**
     * compute digest over buf of length len.
     * multiple calls may extend the digest over more data.
     */
    void update(unsigned char *buf, unsigned len)
    {
      MD5Update(&m_state, buf, len);
    }
  
    /**
     * flush any outstanding MD5 data, write the digest into digest.
     */
    void finalize(unsigned char digest[MD5_DIGEST_STRING_LENGTH])
    {
      MD5Final(digest, &m_state);
    }
  
  private:
    context_md5_t m_state;
  };
  
  
  //! \}
  