The third Financial Cryptography conference was held in February 1999, once again at Anguilla in the British West Indies. The number of attendees continues to increase from year to year, as do the number and quality of the technical submissions. The Program Committee did a great job selecting the technical program. I thank them for all of their eo rt's. We were helped by a number of outside reviewers, including Mart n Abadi, Gerrit Bleumer, Drew Dean, Anand Desai, Mariusz Jakubowski, Andrew Odlyzko, David Pointcheval, Guillaume Poupard, Zul kar Ramzan, Aleta Ricciardi, Dan Simon, Jessica Staddon, Venkie Venka- san, Avishai Wool, and Francis Zane. I apologize for any omissions. Adi Shamir gave an excellent invited talk that forecast the future of crypt- raphy and electronic commerce. On-line certic ate revocation was the subject of a panel led by Michael Myers, following up on the success of his panel on the same topic at last year's conference. Joan Feigenbaum moderated a lively panel on fair use, intellectual property, and the information economy, and I thank her for pulling together from that discussion a paper for these proceedings. A s- cessful Rump Session allowed participants to present new results in an informal setting, superbly chaired by Avi Rubin.

TheseventhinternationalconferenceonCryptologyandNetworkSecurity(CANS 2008)washeld at HKU Town Center, Hong Kong, China, during December 2-4, 2008. The conference was organized by the Department of Computer Science, theUniversityofHongKong, andwasfullysupportedbytheCenterforInfor- tion Security and Cryptography at the University of Hong Kong, the Cyberport Institute of Hong Kong at the University of Hong Kong and the Department of Computer Science at the City University of Hong Kong. The goal of CANS is to promote research on all aspects of network security, as well as to build a bridge between research on cryptography and network security. Previous CANS conferences have been held in Taipei, Taiwan (2001), SanFrancisco, USA (2002), Miami, USA (2003), Xiamen, China (2005), Suzhou, China (2006), and Singapore (2007). The conference proceedings of recent years were published by Springer in the Lecture Notes in Computer Science series. The Program Committee received 73 submissions, and accepted 27 papers for presentation. The ?nal versions of the accepted papers, which the authors ?nalized on the basis of comments from the reviewers, were included in the proceedings. The reviewing process took nine weeks; each paper was carefully evaluated by at least three members from the Program Committee. The in- vidual reviewing phase was followed by a Web-based discussion. Based on the comments and scores given by reviewers, the ?nal decisions on acceptance were made. We appreciate the hard work of the members of the Program Committee and the external referees who gave many hours of their valuabl