He has contributed knowledge towards areas such as virtual reality, digital signatures and online elections.<ref>[http://www.isoc.org/isoc/general/trustees/board.php?id=70 ISOC.org Trustees]</ref> | He has contributed knowledge towards areas such as virtual reality, digital signatures and online elections.<ref>[http://www.isoc.org/isoc/general/trustees/board.php?id=70 ISOC.org Trustees]</ref> |