Crypto'92 took place on August 16-20, 1992. It was the twelfth in the series of annual cryptology conferences held on the beautiful campus of the University of California, Santa Barbara. Once again, it was sponsored by the International Association for Cryptologic Research, in cooperation with the IEEE Computer Society Technical Committee on Security and Privacy. The conference ran smoothly, due to the diligent efforts of the g- eral chair, Spyros Magliveras of the University of Nebraska. One of the measures of the success of this series of conferences is represented by the ever increasing number of papers submitted. This year, there were 135 submissions to the c- ference, which represents a new record. Following the practice of recent program comm- tees, the papers received anonymous review. The program committee accepted 38 papers for presentation. In addition, there were two invited presentations, one by Miles Smid on the Digital Signature Standard, and one by Mike Fellows on presenting the concepts of cryptology to elementary-age students. These proceedings contains these 40 papers plus 3 papers that were presented at the Rump Session. I would like to thank all of the authors of the submitted papers and all of the speakers who presented papers. I would like to express my sincere appreciation to the work of the program committee: Ivan Damgard (Aarhus University, Denmark), Odd Goldreich (Technion, Israel), Burt Kaliski (RSA Data Security, USA), Joe Kilian (NEC, USA).

This book constitutes the refereed proceedings of the 22nd International Cryptology Conference, CRYPTO 2002, held in Santa Barbara, CA, in August 2002. The 39 revised full papers presented were carefully reviewed and selected from a total of 175 submissions. The papers are organized in topical sections on block ciphers, multi-user oriented cryptosystems, foundations and methodology, security and practical protocols, secure multiparty computation, public key encryption, information theory and secret sharing, cipher design and analysis, elliptic curves and Abelian varieties, authentication, distributed cryptosystems, pseudorandomness, stream ciphers and Boolean functions, commitment schemes, and signature schemes.

A series of workshops devoted to modern cryptography began in Santa Barbara,California in 1981 and was followed in 1982 by a European counterpart in Burg Feuerstein, Germany. The series has been maintained with summer meetings in Santa Barbara and spring meetings somewhere in Europe. At the 1983 meeting in Santa Barbara the International Association for Cryptologic Research was launched and it now sponsors all the meetings of the series. This volume presents the proceedings of Eurocrypt '92, held in Hungary. The papers are organized into the following parts: Secret sharing, Hash functions, Block ciphers, Stream ciphers, Public key I, Factoring, Trapdoor primes and moduli (panel report), Public key II, Pseudo-random permutation generators, Complexity theory and cryptography I, Zero-knowledge, Digital knowledge and electronic cash, Complexity theory andcryptography II, Applications, and selected papers from the rump session. Following the tradition of the series, the authors produced full papers after the meeting, in some cases with revisions.

Crypto '91 was the eleventh in a series of workshops on cryptology sponsoredby the International Association for Cryptologic Research and was held in Santa Barbara, California, in August 1991. This volume contains a full paper or an extended abstract for each of the 39 talks presented at the workshop. All theoretical and practical aspects of cryptology are represented, including: protocol design and analysis, combinatorics and authentication, secret sharing and information theory, cryptanalysis, complexity theory, cryptographic schemas based on number theory, pseudorandomness, applications and implementations, viruses, public-key cryptosystems, and digital signatures.

The Crypto ’95 conference was sponsored by the International Association for Cryptologic Research (IACR), in cooperation with the IEEE Computer - ciety Technical Committee on Security and Privacy, and the Computer Science Department of the University of California, Santa Barbara. It took place at the University of California, Santa Barbara, from August 27-31, 1995. This was the fifteenth annual Crypto conference; all have been held at UCSB. For the second time, proceedings were available at the conference. The General Chair, Stafford Tavares, was responsible for local organization and registration. The Program Committee considered 151 papers and selected 36 for pres- tation. There were also two invited talks. Robert Morris, Sr. gave a talk on “Ways of Losing Information,” which included some non-cryptographic means of leaking secrets that are often overlooked by cryptographers. The second talk, “Cryptography - Myths and Realities,” was given by Adi Shamir, this year’s IACR Distinguished Lecturer. Shamir is the second person to receive this honor, the first having been Gus Simmons at Crypto ’94. These proceedings contain revised versions of the 36 contributed talks. Each paper was sent to at least three members of the program committee for c- ments. Revisions were not checked on their scientific aspects. Some authors will write final versions of their papers for publication in refereed journals. Of course, the authors bear full responsibility for the contents of their papers.