A Conference on the Theory and Application of Cryptographic Techniques, Held at he University of California, Santa Barbara, through the Co-operation of the Computer Science Department, August 18 - 220, 1985Signatures and authentication.- Breaking the Ong-Schnorr-Shamir Signature Scheme for Quadratic Number Fields.- Another Birthday Attack.- Attacks on Some RSA Signatures.- An Attack on a Signature Scheme Proposed by Okamoto and Shiraishi.- A Secure Subliminal Channel (?).- Unconditionally Secure Authentication Schemes and Practical and Theoretical Consequences.- Protocols.- On the Security of Ping-Pong Protocols when Implemented using the RSA (Extended Abstract).- A Secure Poker Protocol that Minimizes the Effect of Player Coalitions.- A Framework for the Study of Cryptographic Protocols.- Cheating at Mental Poker.- Security for the DoD Transmission Control Protocol.- Symmetric Public-Key Encryption.- Copy Protection.- Software Protection: Myth or Reality?.- Public Protection of Software.- Fingerprinting Long Forgiving Messages.- Single Key Cryptology.- Cryptanalysis of des with a Reduced Number of Rounds.- Is DES a Pure Cipher? (Results of More Cycling Experiments on DES) (Preliminary Abstract).- A Layered Approach to the Design of Private Key Cryptosystems.- Lifetimes of Keys in Cryptographic Key Management Systems.- Correlation Immunity and the Summation Generator.- Design of Combiners to Prevent Divide and Conquer Attacks.- On the Security of DES.- Information theory without the finiteness assumption, II. Unfolding the DES.- Two Key Cryptology.- Analysis of a Public Key Approach Based on Polynomial Substitution.- Developing an RSA Chip.- An M3 Public-Key Encryption Scheme.- Trapdoor Rings And Their Use In Cryptography.- On Computing Logarithms Over Finite Fields.- N Using RSA with Low Exponent in a Public Key Network.- Lenstras Factorisation Method Based on Elliptic Curves.- Use of Elliptic Curves in Cryptography.- Randomness and Other Problems.- Cryptography wlÓ)