Information Security : Third International Workshop ISW 2000 Wollongong Australia December 20–21 2000 Proceedings This book constitutes the refereed proceedings of the Third International Workshop on Information Security ISW 2000 held in Wollongong Australia in December 2000. The 23 revised full papers presented were carefully reviewed and selected from 63 submissions. The papers are organized in topical sections on multimedia copyright protection e commerce key management network security and access control and cryptographic systems