Cryptography -- On Generating Elements of Orders Dividing p 2k ±p k ?+?1 -- Chosen Ciphertext Secure Public Key Encryption with a Simple Structure -- Remarks on the Attack of Fouque et al. against the ?IC Scheme -- Signature and Signcryption -- Efficient Batch Verification of Short Signatures for a Single-Signer Setting without Random Oracles -- Signcryption Scheme in Multi-user Setting without Random Oracles -- Simple and Efficient Group Signature Scheme Assuming Tamperproof Devices -- Software Security -- The Superdiversifier: Peephole Individualization for Software Protection -- Detecting Java Theft Based on Static API Trace Birthmark -- Online Network Forensics for Automatic Repair Validation -- Return Value Predictability Profiles for Self-healing -- Privacy Protection and Contents Protection -- Involuntary Information Leakage in Social Network Services -- Privacy Preserving Computations without Public Key Cryptographic Operation -- A Novel Framework for Watermarking: The Data-Abstracted Approach -- Invited Talk -- The Elliptic Curve Discrete Logarithm Problem: State of the Art -- Authentication and Access Control -- An Application of the Boneh and Shacham Group Signature Scheme to Biometric Authentication -- Analysis of a Biometric Authentication Protocol for Signature Creation Application -- Efficient Secure Labeling Method under Dynamic XML Data Streams -- Implementation -- Bitstream Encryption and Authentication Using AES-GCM in Dynamically Reconfigurable Systems -- The Long-Short-Key Primitive and Its Applications to Key Security.

This book constitutes the refereed proceedings of the Third International Workshop on Security, IWSEC 2008, held in Kagawa, Japan, in November 2008. The 18 revised full papers presented together with 1 invited talk were carefully reviewed and selected from 94 submissions. The papers are organized in topical sections on cryptography, signature and signcryption, software security, privacy protection and contents protection, authentication and access control, as well as implementation.