This book constitutes the thoroughly refereed post-conference proceedings of the 8th International Workshop on Formal Aspects of Security and Trust, FAST 2011, held in conjunction with the 16th European Symposium on Research in Computer Security, ESORICS 2011, in Leuven, Belgium in September 2011. The 15 revised full papers presented together with 2 invited papers were carefully reviewed and selected from 42 submissions. The papers focus on security and trust policy models; security protocol design and analysis; formal models of trust and reputation; logics for security and trust; distributed...

Increasingly our critical infrastructures are reliant on computers. We see examples of such infrastructures in several domains, including medical, power, telecommunications, and finance. Although automation has advantages, increased reliance on computers exposes our critical infrastructures to a wider variety and higher likelihood of accidental failures and malicious attacks. Disruption of services caused by such undesired events can have catastrophic effects, such as disruption of essential services and huge financial losses. The increased reliance of critical services on our...