Invited Paper -- Password-Based Authenticated Key Exchange: An Overview -- Practical and Provably Secure Attribute Based Encryption -- Fundamental -- Adaptive versus Static Security in the UC Model -- Impossibility of Surjective Icart-Like Encodings -- Symmetric Key Encryption -- On the practical security bound of GF-NLFSR structure with SPN round function -- Misuse-Resistant Variants of the OMD Authenticated Encryption Mode -- A Block-Cipher-Based Hash Function Using an MMO-Type Double-Block Compression Function -- Authentication.-Forward-Secure Sequential Aggregate Message Authentication Revisited: Formalization and a Provably Secure Scheme -- A Provable Secure Batch Authentication Scheme for EPCGen2 Tags -- Signatures -- Generic Transformation to Strongly Existentially Unforgettable Signature Schemes with Leakage Resiliency -- Bounded Pre-Image Awareness and the Security of Hash-Tree Keyless Signatures -- Protocol -- Verifiable Computation in Multiparty Protocols with Honest Majority -- Public Key Encryption -- Lossy Trapdoor Relation and Its Application to Lossy Encryption and Adaptive Trapdoor Relation.-Compact Public Key Encryption with Minimum Ideal Property of Hash Functions -- Proxy Re-Encryption -- RCCA-Secure Multi-use Bidirectional Proxy Re-Encryption with Master Secret Security -- Fine-grained Conditional Proxy Re-encryption and Application -- Predicate Encryption -- Constructing Subspace Membership Encryption through Inner Product Encryption -- Efficient (Anonymous) Compact HIBE From Standard Assumptions -- Attribute-based Cryptosystem -- Computationally Efficient Ciphertext-Policy Attribute-Based Encryption with Constant-Size Ciphertexts -- Attribute-Based Signcryption : Signer Privacy, Strong Unforgetability and IND-CCA2 Security in Adaptive-Predicates Attack -- Short Papers -- How to Use Pseudorandom Generators in Unconditional Security Settings -- Equivalence between MAC and PRF for Blockcipher based Constructions -- A Short Fail-Stop Signature Scheme from Factoring -- Computational Soundness of Asymmetric Bilinear Pairing-based Protocols -- Timed-Release Computational Secret Sharing Scheme and Its Applications -- Deniable Version of SIGMA Key Exchange Protocol Resilient to Ephemeral Key Leakage -- Complete Robustness in Identity-Based Encryption.

This book constitutes the refereed proceedings of the 8th International Conference on Provable Security, ProvSec 2012, held in Chengdu, China, in September 2012. The 20 full papers and 7 short papers presented together with 2 invited talks were carefully reviewed and selected from 68 submissions. The papers are grouped in topical sections on fundamental, symmetric key encryption, authentication, signatures, protocol, public key encryption, proxy re-encryption, predicate encryption, and attribute-based cryptosystem.