/*=========================================================================

  Program: GDCM (Grassroots DICOM). A DICOM library

  Copyright (c) 2006-2011 Mathieu Malaterre
  All rights reserved.
  See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#include "gdcmDummyValueGenerator.h"
#include "gdcmTrace.h"
#include "gdcmSystem.h"
#include "gdcmSHA1.h"
#include "gdcmMD5.h"

#include <cstring> // strlen

namespace gdcm
{

const char* DummyValueGenerator::Generate(const char *input)
{
  static char digest[2*20+1] = {};
  bool b = false;
  if( input )
    {
    // Cannot use MD5 as it has been broken multiple time (2005)
    b = MD5::Compute(input, (unsigned long)strlen(input), digest);
    //b = SHA1::Compute(input, strlen(input), digest);
    }

  if( b )
    return digest;
  return nullptr;
}


} // end namespace gdcm
