Distributed systems today are very vulnerable to malicious attacks, either from insiders or outsiders. When an attacker controls a component of the system, he may steal some sensi...
—Survivability modeling and evaluation have gained increasing importance. Most existing models assume that the distributions for transitions between states are exponential. Howev...
Reliable storage of large amounts of data is always a delicate issue. Availability, efficiency, data integrity, and confidentiality are some features a data backup system should...
Fault-tolerant protocols, asynchronous and synchronous alike, make stationary fault assumptions: only a fraction f of the total n nodes may fail. Whilst a synchronous protocol is ...
Paulo Sousa, Nuno Ferreira Neves, Paulo Verí...
Grid systems are designed to support very large data set computations, that potentially access significant resources spread through several organizations. These resources can be v...
Luis Sardinha, Nuno Ferreira Neves, Paulo Ver&iacu...