Yvo Desmedt Reihaneh Safavi-Naini Huaxiong Wang Lynn Margaret Batten Chris Charnes Josef Pieprzyk 223-236 2001 35 Computer Networks 2-3 db/journals/cn/cn35.html#DesmedtSWBCP01 http://dx.doi.org/10.1016/S1389-1286(00)00169-9