Network Security I -- A Dynamic Mechanism for Recovering from Buffer Overflow Attacks -- SVision: A Network Host-Centered Anomaly Visualization Technique -- Trust & Privacy -- Time-Based Release of Confidential Information in Hierarchical Settings -- “Trust Engineering:” From Requirements to System Design and Maintenance – A Working National Lottery System Experience -- A Privacy Preserving Rental System -- Key Management & Protocols -- Constant Round Dynamic Group Key Agreement -- A Key Pre-distribution Scheme for Wireless Sensor Networks: Merging Blocks in Combinatorial Design -- ID-based Multi-party Authenticated Key Agreement Protocols from Multilinear Forms -- On the Notion of Statistical Security in Simulatability Definitions -- Public Key Encryption & Signature -- Certificateless Public Key Encryption Without Pairing -- Tracing-by-Linking Group Signatures -- Chaum’s Designated Confirmer Signature Revisited -- Network Security II -- gore: Routing-Assisted Defense Against DDoS Attacks -- IPSec Support in NAT-PT Scenario for IPv6 Transition -- Signcryption -- Hybrid Signcryption Schemes with Outsider Security -- Analysis and Improvement of a Signcryption Scheme with Key Privacy -- Efficient and Proactive Threshold Signcryption -- Crypto Algorithm & Analysis -- Error Oracle Attacks on CBC Mode: Is There a Future for CBC Mode Encryption? -- Hardware Architecture and Cost Estimates for Breaking SHA-1 -- On the Security of Tweakable Modes of Operation: TBC and TAE -- A Non-redundant and Efficient Architecture for Karatsuba-Ofman Algorithm -- Cryptography -- Compatible Ideal Contrast Visual Cryptography Schemes with Reversing -- An Oblivious Transfer Protocol with Log-Squared Communication -- Applications -- Electronic Voting: Starting Over? -- Timed-Release Encryption with Pre-open Capability and Its Application to Certified E-mail System -- Universally Composable Time-Stamping Schemes with Audit -- A Multiplicative Homomorphic Sealed-Bid Auction Based on Goldwasser-Micali Encryption -- Software Security -- Building a Cryptovirus Using Microsoft’s Cryptographic API -- On the Security of the WinRAR Encryption Method -- Towards Better Software Tamper Resistance -- Authorization & Access Control -- Device-Enabled Authorization in the Grey System -- Evaluating Access Control Policies Through Model Checking -- A Cryptographic Solution for General Access Control -- Student Papers -- Integrity Improvements to an RFID Privacy Protection Protocol for Anti-counterfeiting -- A Formal Definition for Trust in Distributed Systems -- A Practical Voting Scheme with Receipts -- New Constructive Approach to Covert Channel Modeling and Channel Capacity Estimation -- Efficient Modeling of Discrete Events for Anomaly Detection Using Hidden Markov Models.This volume contains the proceedings of the 8th International Information - curity Conference (ISC 2005), which took place in Singapore, from 20th to 23rd September 2005. ISC 2005 brought together individuals from academia and - dustry involvedin manyresearchdisciplines of information security to foster the exchange of ideas. During recent years this conference has tried to place special emphasis on the practical aspects of information security, and since it passed from being an international workshop to being an international conference in 2001, it has become one of the most relevant forums at which researchers meet and discuss emerging security challenges and solutions. Advised by the ISC Steering Committee, and in order to provide students with more opportunities for publication, ISC 2005 accepted extra student papers - sides the regular papers. The initiative was very well accepted by the young sector of the scienti?c community, and we hope that the success of this idea will remainfornextISCevents. AnotherimportantfactorforthesuccessofISC2005 was that selected papers in the proceedings will be invited for submission to a special issue of the InternationalJournalof InformationSecurity. The result was an incredible response to the call for papers; we received 271 submissions, the highest since ISC events started. It goes without saying that the paper selection process was more competitive and di?cult than ever before — only 33 regular papers were accepted, plus 5 student papers for a special student session.