Intrusion-tolerance is the technique of using fault-tolerance to achieve security properties. Assuming that faults, both benign and Byzantine, are unavoidable, the main goal of Int...
In this paper, we analyze the role of the social group in a Ubiquitous Computing (Ubicomp) environment as a source of contextual information. A model is presented to address the s...
This paper presents Worm-IT, a new intrusion-tolerant group communication system with a membership service and a view-synchronous atomic multicast primitive. The system is intrusi...
Miguel Correia, Nuno Ferreira Neves, Lau Cheuk Lun...
Group communication systems are powerful building blocks that facilitate the development of fault-tolerant distributed applications. Such systems generally run in an asynchronous ...
This paper describes a group communication system called the timewheel group communication system that has been designed for a timed asynchronous distributed system model. The tim...