This volume constitutes the refereed proceedings of the 8th IFIP WG 11.2 International Workshop on Information Security Theory and Practices, WISTP 2014, held in Heraklion, Crete, Greece, in June/July 2014. The 8 revised full papers and 6 short papers presented together with 2 keynote talks were carefully reviewed and selected from 33 submissions.

Sweet Dreams and Nightmares: Security in the Internet of Things.- A Security Analysis of Key Expansion Functions Using Pseudorandom Permutations.- Towards More Practical Time-Driven Cache Attacks.- Orthogonal Direct Sum Masking: A Smartcard Friendly Computation Paradigm in a Code, with Built in Protection against Side-Channel and Fault Attacks.- New Countermeasures against Fault and Software Type Confusion Attacks on Java Cards.- A Pre-processing Composition for Secret Key Recovery on Android Smartphone.- Usable Privacy for Mobile Sensing Applications.- A Secure Genetic Algorithm for the Subset Cover Problem and Its Application to Privacy Protection.- End-to-End Secure and Privacy Preserving Mobile Chat Application.- S-box, SET, Match: A Toolbox for S-box Analysis.- Policy-Based Access Control for Body Sensor Networks.- Personal Identification in the Web Using Electronic Identity Cards and a Personal Identity Provider.- CAN Bus Risk Analysis Revisit.- AU2EU: Privacy-Preserving Matching of DNA Sequences.- Early DDoS Detection Based on Data Mining Techniques.