public MD2Digest(MD2Digest t)
 {
     CopyIn(t);
 }
 private void CopyIn(MD2Digest t)
 {
     Array.Copy(t.X, 0, X, 0, t.X.Length);
     xOff = t.xOff;
     Array.Copy(t.M, 0, M, 0, t.M.Length);
     mOff = t.mOff;
     Array.Copy(t.C, 0, C, 0, t.C.Length);
     COff = t.COff;
 }