Shahrokh Saeednia Reihaneh Safavi-Naini Efficient Identity-Based Conference Key Distribution Protocols. 320-331 1998 conf/acisp/1998 ACISP http://link.springer.de/link/service/series/0558/bibs/1438/14380320.htm db/conf/acisp/acisp1998.html#SaeedniaS98