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The CRYPTO '93 conference was sponsored by the International Association for Cryptologic Research (IACR) and Bell-Northern Research (a subsidiary of Northern Telecom), in co-operation with the IEEE Computer Society Technical Committee. It took place at the University of California, Santa Barbara, from August 22-26, 1993. This was the thirteenth annual CRYPTO conference, all of which have been held at UCSB. The conference was very enjoyable and ran very of the General Chair, Paul Van Oorschot. smoothly, largely due to the efforts It was a pleasure working with Paul throughout the months leading up to the conference. There were 136 submitted papers which were considered by the Program Committee. Of these, 38 were selected for presentation at the conference. There was also one invited talk at the conference, presented by Miles Smid, the title of which was "A Status Report On the Federal Government Key Escrow System." The conference also included the customary Rump Session, which was presided over by Whit Diffie in his usual inimitable fashion. Thanks again to Whit for organizing and running the Rump session. This year, the Rump Session included an interesting and lively panel discussion on issues pertaining to key escrowing. Those taking part were W. Diffie, J. Gilmore, S. Goldwasser, M. Hellman, A. Herzberg, S. Micali, R. Rueppel, G. Simmons and D. Weitzner.

Advances in Cryptology - CRYPTO '93: 13th Annual International Cryptology Conference Santa Barbara, California, USA August 22-26, 1993 Proceedings

Cryptosystems.- Efficient Signature Schemes Based on Birational Permutations.- A new identification scheme based on syndrome decoding.- The Shrinking Generator.- Stream Ciphers and Cryptographic Functions.- An Integrity Check Value Algorithm for Stream Ciphers.- Nonlinearly Balanced Boolean Functions and Their Propagation Characteristics.- Proof Systems and Zero-knowledge.- A Low Communication Competitive Interactive Proof System for Promised Quadratic Residuosity.- Secret Sharing and Perfect Zero Knowledge.- One Message Proof Systems with Known Space Verifiers.- Interactive Hashing can Simplify Zero-Knowledge Protocol Design Without Computational Assumptions.- Secret Sharing.- Fully Dynamic Secret Sharing Schemes.- Multisecret Threshold Schemes.- Secret Sharing Made Short.- Number Theory and Algorithms.- A Subexponential Algorithm for Discrete Logarithms over All Finite Fields.- An implementation of the general number field sieve.- On the factorization of RSA-120.- Comparison of three modular reduction functions.- Differential Cryptanalysis.- Differential Cryptanalysis of Lucifer.- Differential Attack on Message Authentication Codes.- Cryptanalysis of the CFB mode of the DES with a reduced number of rounds.- Weak Keys for IDEA.- Complexity Theory.- Entity Authentication and Key Distribution.- On the Existence of Statistically Hiding Bit Commitment Schemes and Fail-Stop Signatures.- Joint Encryption and Message-Efficient Secure Computation.- Cryptographic Primitives Based on Hard Learning Problems.- Applications.- Extensions of Single-term Coins.- Untraceable Off-line Cash in Wallet with Observers.- Discreet Solitary Games.- Authentication Codes.- On Families of Hash Functions via Geometric Codes and Concatenation.- On the Construction of Perfect Authentication Codes that Permit Arbitration.- Codes for Interactive Authentication.- Hash Functions.- Hash functions based on block ciphers: a synthetic approach.- Security of Iterated Hash Functions Based on Block Ciphers.- Cryptanalysis.- Improved Algorithms for the Permuted Kernel Problem.- On the Distribution of Characteristics in Composite Permutations.- Remark on the Threshold RSA Signature Scheme.- Another Method for Attaining Security Against Adaptively Chosen Ciphertext Attacks.- Attacks on the Birational Permutation Signature Schemes.- Key Distribution.- Interaction in Key Distribution Schemes.- Secret-Key Agreement without Public-Key Cryptography.- Broadcast Encryption.