Theory of Cryptography: Fifth Theory of Cryptography Conference, TCC 2008, New York, USA, March 19-21, 2008, Proceedings: Lecture Notes in Computer Science, cartea 4948

Technical Session 1.- Incrementally Verifiable Computation or Proofs of Knowledge Imply Time/Space Efficiency.- On Seed-Incompressible Functions.- Technical Session 2.- Asymptotically Efficient Lattice-Based Digital Signatures.- Basing Weak Public-Key Cryptography on Strong One-Way Functions.- Technical Session 3.- Which Languages Have 4-Round Zero-Knowledge Proofs?.- How to Achieve Perfect Simulation and A Complete Problem for Non-interactive Perfect Zero-Knowledge.- General Properties of Quantum Zero-Knowledge Proofs.- Technical Session 4.- The Layered Games Framework for Specifications and Analysis of Security Protocols.- Universally Composable Multi-party Computation with an Unreliable Common Reference String.- Efficient Protocols for Set Intersection and Pattern Matching with Security Against Malicious and Covert Adversaries.- Fast Private Norm Estimation and Heavy Hitters.- Technical Session 5.- Matroids Can Be Far from Ideal Secret Sharing.- Perfectly-Secure MPC with Linear Communication Complexity.- MPC vs. SFE: Perfect Security in a Unified Corruption Model.- Invited Talk.- Bridging Game Theory and Cryptography: Recent Results and Future Directions.- Technical Session 6.- Verifiably Secure Devices.- Lower Bounds on Implementing Robust and Resilient Mediators.- Cryptography and Game Theory: Designing Protocols for Exchanging Information.- Technical Session 7.- Equivocal Blind Signatures and Adaptive UC-Security.- P-signatures and Noninteractive Anonymous Credentials.- Technical Session 8.- Multi-property Preserving Combiners for Hash Functions.- OT-Combiners via Secure Computation.- Semi-honest to Malicious Oblivious Transfer—The Black-Box Way.- Black-Box Construction of a Non-malleable Encryption Scheme from Any Semantically Secure One.- Technical Session 9.-A Linear Lower Bound on the Communication Complexity of Single-Server Private Information Retrieval.- Randomness Extraction Via ?-Biased Masking in the Presence of a Quantum Attacker.- Technical Session 10.- An Equivalence Between Zero Knowledge and Commitments.- Interactive and Noninteractive Zero Knowledge are Equivalent in the Help Model.- Technical Session 11.- The Round-Complexity of Black-Box Zero-Knowledge: A Combinatorial Characterization.- On Constant-Round Concurrent Zero-Knowledge.- Technical Session 12.- Concurrent Non-malleable Commitments from Any One-Way Function.- Faster and Shorter Password-Authenticated Key Exchange.- Technical Session 13.- Saving Private Randomness in One-Way Functions and Pseudorandom Generators.- Degradation and Amplification of Computational Hardness.