Wagner Saback Dantas

Learn More
Replication is a mechanism extensively used to guarantee the availability and good performance of data storage services. Byzantine Quorum Systems (BQS) have been proposed as a solution to guarantee the consistency of that kind of services, even if some of the replicas fail arbitrarily. Many BQS have been proposed recently, but comparing their performance is(More)
Critical infrastructures like the power grid are essentially physical processes controlled by electronic devices. In the last decades, these electronic devices started to be controlled remotely through commodity computers, often directly or indirectly connected to the Internet. Therefore, many of these systems are currently exposed to threats similar to(More)
One important aspect of modern critical infrastructures (CI) like power grids is that the control of the physical processes (e.g., electricity transmission) is no longer done locally but in a distributed way with SCADA/PCS systems. This distributed control is done over utility networks, typically wide-area IP networks, that interconnect the CI facilities(More)
This document describes the complete specification of the architecture, services and protocols of the project CRUTIAL. The CRUTIAL Architecture intends to reply to a grand challenge of computer science and control engineering: how to achieve resilience of critical information infrastructures (CII), in particular in the electrical sector. In general lines,(More)
  • 1