This book constitutes the refereed proceedings of the 11th International Conference on Information Security and Cryptology, ICISC 2008, held in Seoul, Korea, during December 3-5, 2008.

The 26 revised full papers presented have gone through two rounds of reviewing and improvement and were carefully selected from 131 submissions. The papers are organized in topical sections on public key encryption, key management and secret sharing, privacy and digital rights, digital signature and voting, side channel attack, hash and mac, primitives and foundations, as well as block and stream ciphers.

The 10th Annual ASIACRYPT 2004 was held in Jeju Island, Korea, d- ing December 5-9, 2004. This conference was organized by the International Association for Cryptologic Research (IACR) in cooperation with KIISC (- rean Institute of Information Security and Cryptology) and IRIS (International Research center for Information Security) at ICU (Information and Communi- tionsUniversity), andwas?nanciallysupportedbyMIC(MinistryofInformation and Communication) in Korea. The conference received, from 30 countries, 208 submissions that represent the current state of work in the cryptographic community worldwide, covering all areas of cryptologic research. Each paper, without the authors' information, was reviewed by at least three members of the program committee, and the papers (co-)authored by members of the program committee were reviewed by at least six members. We also blinded the reviewers' names among the reviewers until the ?nal decision, by using pseudonyms. The reviews were then followed by deep discussions on the papers, which greatly contributed to the quality of the ?nal selection. In most cases, extensive comments were sent to the authors. Among 208 submissions, the program committee selected 36 papers. Two submissions were merged into a single paper, yielding the total of 35 papers acceptedforpresentationinthetechnicalprogramoftheconference.Manyhi- quality works could not be accepted because of the competitive nature of the conference and the challenging task of selecting a program. These proceedings contain revised versions of the accepted papers. These revisions have not been checked for correctness, and the authors bear full responsibility for the contents of their papers.

 This book constitutes the thoroughly refereed post-proceedings of the 5th International Conference on Information Security and Cryptology, ICISC 2002, held in Seoul, Korea in November 2002. The 35 revised full papers presented together with an invited paper were carefully selected from 142 submissions during two rounds of reviewing and improvement. The papers are organized in topical sections on digital signatures, Internet security, block ciphers and stream ciphers, stream ciphers and other primitives, efficient implementations, side-channel attacks, cryptographic protocols and biometrics.