title: Need your help on Full Triple DES MAC in C# .NET
body: <p>My work needs the full triple DES MAC function in .NET (as as defined in [ISO 9797-1] as MAC Algorithm 1 with output transformation 1, without truncation, and with triple DES taking the place of the block cipher)</p>
  
  <p>My problem is that I don't know how to implement this algorithm in C#.NET</p>
  
  <p>Is there any suggestion (or code snippet) that would helps me implementing it (.NET Class and method)</p>
  
  <p>Thanks in advance!
  Best regards,
  Hai-Binh LE</p>