Information Security and Privacy : Second Australasian Conference ACISP97 Sydney NSW Australia July 7 9 1997 Proceedings This book constitutes the refereed proceedings of the Second Australasian Conference on Information Security and Privacy ACISP97 held in Sydney NSW Australia in July 1997. The 20 revised full papers presented were carefully selected for inclusion in the proceedings. The book is divided into sections on security models and access control network security secure hardware and implementation issues cryptographic functions and ciphers authentication codes and secret sharing systems cryptanalysis key escrow security protocols and key management and applications