Information Security and Privacy 4th Australasian Conference, ACISP'99, Wollongong, NSW, Australia, April 7-9, 1999, Proceedings - Pieprzyk, Josef; Pieprzyk, Josef; Safavi-Naini, Rei; Safavi-Naini, Rei; Seberry, Jennifer; Seberry, Jennifer (Springer Berlin Heidelberg : Imprint: Springer, 1999)