Theory of Cryptography

Notions of Reducibility between Cryptographic Primitives.- Indifferentiability, Impossibility Results on Reductions, and Applications to the Random Oracle Methodology.- On the Random-Oracle Methodology as Applied to Length-Restricted Signature Schemes.- Universally Composable Commitments Using Random Oracles.- Transformation of Digital Signature Schemes into Designated Confirmer Signature Schemes.- List-Decoding of Linear Functions and Analysis of a Two-Round Zero-Knowledge Argument.- On the Possibility of One-Message Weak Zero-Knowledge.- Soundness of Formal Encryption in the Presence of Active Adversaries.- Rerandomizable and Replayable Adaptive Chosen Ciphertext Attack Secure Cryptosystems.- Alternatives to Non-malleability: Definitions, Constructions, and Applications.- A Note on Constant-Round Zero-Knowledge Proofs for NP.- Lower Bounds for Concurrent Self Composition.- Secret-Key Zero-Knowlegde and Non-interactive Verifiable Exponentiation.- A Quantitative Approach to Reductions in Secure Computation.- Algorithmic Tamper-Proof (ATP) Security: Theoretical Foundations for Security against Hardware Tampering.- Physically Observable Cryptography.- Efficient and Universally Composable Committed Oblivious Transfer and Applications.- A Universally Composable Mix-Net.- A General Composition Theorem for Secure Reactive Systems.- Unfair Noisy Channels and Oblivious Transfer.- Computational Collapse of Quantum State with Application to Oblivious Transfer.- Implementing Oblivious Transfer Using Collection of Dense Trapdoor Permutations.- Composition of Random Systems: When Two Weak Make One Strong.- Simpler Session-Key Generation from Short Random Passwords.- Constant-Round Oblivious Transfer in the Bounded Storage Model.- Hierarchical Threshold Secret Sharing.- On Compressing Encrypted Data without the Encryption Key.- On the Notion of Pseudo-Free Groups.