The 6th International Conference on Information Security Practice and Expe- ence (ISPEC 2010) was held in Seoul, Korea, May 12¿13, 2010. The ISPEC conference series is an established forum that brings together - searchers and practitioners to provide a con?uence of new information security technologies, including their applications and their integration with IT systems invariousverticalsectors.Inpreviousyears,ISPEChastakenplaceinSingapore (2005), Hangzhou, China (2006), Hong Kong, China (2007), Sydney, Australia (2008),andXi¿an, China (2009).For all sessions,as this one,the conferencep- ceedings were published by Springer in the Lecture Notes in Computer Science series. In total, 91 papers from 18 countries were submitted to ISPEC 2010, and 28 were selected for inclusion in the proceedings (acceptance rate 30%). The accepted papers cover multiple topics of information security and applied cr- tography. Each submission was anonymously reviewed by at least three revi- ers. We are grateful to the Program Committee, which was composed of more than 56 well-known security experts from 16 countries; we heartily thank them as well as all external reviewers for their time and valued contributions to the tough and time-consuming reviewing process. The conference was hosted by Soonchunhyang University, Korea, supported by Korea Internet & Security Agency (KISA), Korea; Electronics and Telec- munications Research Institute (ETRI), Korea, in Corporation with Korea - stitute of Information Security & Cryptography (KIISC), Korea, and sponsored by Korea Communications Commission (KCC), Korea. We sincerely thank the HonoraryChair and the General Chairs of ISPEC 2010 for their strong support.

Cryptanalysis.- Improved Related-Key Boomerang Attacks on Round-Reduced Threefish-512.- Integral Attacks on Reduced-Round ARIA Block Cipher.- A New Class of RC4 Colliding Key Pairs with Greater Hamming Distance.- On the Security of NOEKEON against Side Channel Cube Attacks.- Algorithms and Implementations (I).- On Fast and Approximate Attack Tree Computations.- Width-3 Joint Sparse Form.- Accelerating Inverse of GF(2 n ) with Precomputation.- Algorithms and Implementations (II).- Concurrent Error Detection Architectures for Field Multiplication Using Gaussian Normal Basis.- The Elliptic Curve Discrete Logarithm Problems over the p-adic Field and Formal Groups.- A New Efficient Algorithm for Computing All Low Degree Annihilators of Sparse Polynomials with a High Number of Variables.- Network Security.- Host-Based Security Sensor Integrity in Multiprocessing Environments.- Using Purpose Capturing Signatures to Defeat Computer Virus Mutating.- Rate-Based Watermark Traceback: A New Approach.- Locally Multipath Adaptive Routing Protocol Resilient to Selfishness and Wormholes.- Access Control.- Security Analysis and Validation for Access Control in Multi-domain Environment Based on Risk.- A Proposal of Appropriate Evaluation Scheme for Exchangeable CAS (XCAS),.- Identity Management.- A Trustworthy ID Management Mechanism in Open Market.- BioID: Biometric-Based Identity Management.- Trust Management.- Privacy Preserving of Trust Management Credentials Based on Trusted Computing.- Mitigating the Malicious Trust Expansion in Social Network Service.- Public Key Cryptography.- An Efficient Convertible Undeniable Signature Scheme with Delegatable Verification.- Certificateless KEM and Hybrid Signcryption Schemes Revisited.- A Deniable Group Key Establishment Protocol in the Standard Model.- Threshold Password-Based Authenticated Group Key Exchange in Gateway-Oriented Setting.- Security Applications.- Binary Image Steganographic Techniques Classification Based on Multi-class Steganalysis.- Game Theoretic Resistance to Denial of Service Attacks Using Hidden Difficulty Puzzles.- Attacking and Improving on Lee and Chiu's Authentication Scheme Using Smart Cards.- Protection Profile for Secure E-Voting Systems.