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.

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.