Kaoru Kurosawa – författare

ASIACRYPT 2007 was held in Kuching, Sarawak, Malaysia, during December 2–6, 2007. This was the 13th ASIACRYPT conference, and was sponsored by the International Association for Cryptologic Research (IACR), in cooperation with the Information Security Research (iSECURES) Lab of Swinburne University of Technology (Sarawak Campus) and the Sarawak Development Institute (SDI), and was ?nancially supported by the Sarawak Government. The General Chair was Raphael Phan and I had the privilege of serving as the Program Chair. The conference received 223 submissions (from which one submission was withdrawn). Each paper was reviewed by at least three members of the Program Committee, while submissions co-authored by a Program Committee member were reviewed by at least ?ve members. (Each PC member could submit at most one paper.) Many high-quality papers were submitted, but due to the relatively small number which could be accepted, many very good papers had to be rejected. After 11 weeks of reviewing, the Program Committee selected 33 papers for presentation (two papers were merged). The proceedings contain the revised versions of the accepted papers. These revised papers were not subject to editorial review and the authors bear full responsibility for their contents.

ICITS2009washeldattheShizuokaConventionandArtsCenter“GRANSHIP” in Japan during December 3–6,2009.This was the 4th International Conference on Information Theoretic Security. Over the last few decades, we have seen several research topics studied - quiringinformationtheoreticalsecurity,alsocalledunconditionalsecurity,where there is no unproven computational assumption on the adversary. (This is the framework proposed by Claude Shannon in his seminal paper.) Also, coding as well as other aspects of information theory have been used in the design of cryptographic schemes. Examples are authentication, secure communication, key exchange, multi-party computation and information hiding to name a few. A related area is quantum cryptography that predominantly uses information theory for modeling and evaluation of security. Needless to say, information t- oretically secure cryptosystems are secure even if the factoring assumption or the discrete log assumption is broken. Seeing the multitude of topics in m- ern cryptographyrequiring informationtheoreticalsecurity or using information theory, it is time to have a regular conference on this topic. This was the fourth conference of this series, aiming to bring together the leading researchers in the area of information and/or quantum theoretic security.

This book constitutes the proceedings of the 4th provable security conference held in Malacca, Malaysia in October 2010.The 17 papers presented were carefully reviewed and selected from 47 submissions. The papers are divided in topical sections on identification, auto proofs, signature, hash function, protocol, encryption, and signcryption.