With the explosive growth of data exchange and the availability of access to services over the Web, the Trusted Information requirement is more and more an issue to providers and users of these services. Addressing this security issue, this volume is divided into eleven parts covering the essentials of information security technologies, including application-related topics, and issues relating to application development and deployment: Security Protocols; Smart Card; Network Security and Intrusion Detection; Trusted Platforms; eSociety; TTP Management and PKI; Secure Workflow Environment; Secure Group Communications; Risk Management; Security Policies; Trusted System Design and Management. This book comprises the proceedings of the 16th International Conference on Information Security (Sec'01), which was sponsored by the International Federation for Information Processing (IFIP) and organized by IFIP Technical Committee 11. The conference was held in June 2001 in Paris, France. Trusted Information: The New Decade Challenge is essential reading for computer science researchers and application developers.