We are the Navigators, a research team on distributed systems, their architectures, their algorithms, in their several skins: fault tolerance, real-time, security, and combinations thereof.
We also pursue the quest for the right balance between science and technology. Some people say that Informatics (a.k.a. computer science and engineering) belongs to a new breed, of what are called techno-sciences. We believe that techno-scientists should accompany theoretical mastery with a deep knowledge of their environment — computer technology — as well as astro-physicists know the sky, or marine biologists know the sea.
We study new theories to explain distributed systems, and new algorithms to take advantage from them. But we also like to do proof-of-concept experiments about the theory we work on. We try that our papers and theses tell a good story as clearly as possible. We work hard for our demonstrations to be convincing and captivating. Because we believe science is made for others.
- (1/Sep/2016) A H2020 research project lead by the Navigators group has started. The project is called: DiSIEM - Diversity enhancements for SIEMs
- (1/July/2016) We have initiated a new FCT research project. The project is called: IRCoC - Intelligent Resilience for Cloud-of-Clouds Services
- (1/Jan/2016) We have started a collaboration project with colleagues from Brasil, which is supported by CAPES-FCT. The project is called: Resilient Supervision and Control in Smart Grids
- José Rufino, “Non-intrusive Observation and Runtime Verification of Avionic Systems”, Ada User Journal, vol. 39, no. 4, Dec. 2018.
- José Rufino, “Hardware Support for Non-intrusive Runtime Verification on Processor Technologies”, Ada User Journal, vol. 39, no. 4, Dec. 2018.
- Ivo Vacas, Ibéria Medeiros, Nuno Ferreira Neves, “Detecting Network Threats using OSINT Knowledge-based IDS”, in Proceedings of the 14th European Dependable Computing Conference (EDCC), Sept. 2018.
- Luis Sacramento, Ibéria Medeiros, João Bota, Miguel Correia, “FlowHacker: Detecting Unknown Network Attacks in Big Traffic Data using Network Flows”, in Proceedings of the 17th IEEE International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom), Jul. 2018.
- José Rufino, Felix Dino Lange, Martin Leucker, Torben Scheffel, Malte Schmitz, Daniel Thoma, António Casimiro, “Non-intrusive Runtime Verification within a System-on-Chip”, Ada User Journal, Jun. 2018.
- Miguel Garcia, Nuno Ferreira Neves, Alysson Bessani, “SieveQ: A Layered BFT Protection System for Critical Services”, IEEE Transactions on Dependable and Secure Computing, vol. 15, no. 3, pp. 511–525, Jun. 2018.
- José Rufino, António Casimiro, Antónia Lopes, Frank Singhoff, Stéphane Rubini, Valérie-Anne Nicolas, Mounir Lallali, Mourad Dridi, Jalil Boukhobza, Lyes Allache, “NORTH - Non-intrusive Observation and RunTime verification of cyber-pHysical systems”, Ada User Journal, Jun. 2018.
- Stéphane Rubini, Valérie-Anne Nicolas, Frank Singhoff, José Rufino, “A Real-Time System Monitoring driven by Scheduling Analysis”, Ada User Journal, Jun. 2018.
- Henrique Mendes, Ibéria Medeiros, Nuno Ferreira Neves, “Validating and Securing DLMS/COSEM Implementations with the ValiDLMS Framework”, in Proceedings of the Workshop on Security and Dependability of Critical Embedded Real-Time Systems (CERTS), Jun. 2018.
- João Sousa, Alysson Bessani, Marko Vukolić, “A Byzantine Fault-Tolerant Ordering Service for the Hyperledger Fabric Blockchain Platform”, in 48th IEEE/IFIP International Conference on Dependable Systems and Networks, Jun. 2018.
|Regivaldo Costa||presents||A Software-Defined Netwoking approach to enhance BGP security|
|Ibéria Medeiros||presents||Demonstrating a Tool for Injection Attack Prevention in MySQL|
|Fernando Ramos||presents||uPVN: User-centric Programmable Virtual Networks|
|Miguel Correia||presents||Detecting Malicious Hosts Using Traffic Flows|
|Sileshi Demesi Yalew||presents||Mobile Device Security with ARM TrustZone|
|João Silva||presents||Distributed implementation of evolutionary algorithms|
|Diogo Pinto||presents||(to be rescheduled)|
|Rui Miguel||presents||P4: Programming Protocol-Independent Packet Processors (Bosshart et al., SIGCOMM'14)|
|Fabio Pereria||presents||Network Monitoring in a Secure and Efficient Way|
|Bruno Nunes||presents||Live Migration of Networks|
|Pedro Alves||presents||Smarter Routing for a Smarter Grid|
|Antonio Casimiro||presents||Enforcing Timeliness and Safety in Mission-Critical Systems|
|Eunice Branco||presents||Cyberthreat Discovery in Open Source Intelligence using Deep Learning Techniques|
|Miguel Falé||presents||Protecting WAP from infinite recursion|
|Henrique Mendes||presents||Securing DLMS/COSEM implementations for use in the smart grid|
|Adriano Serckumecka||presents||Collection and monitoring of security events to feed SIEMs|
| Eric Vial, Max Alaluna,|
|present||Demonstration of Sirius, a Multi-Cloud Network Virtualization Platform|
|Nuno Neves||presents||Intrusion Tolerant Eclipse SCADA|
|Bruno Vavala||presents||Secure Tera-scale Data Crunching with a Small TCB|
|Tiago Oliveira||presents||Exploring Key-Value Stores in Multi-Writer Byzantine-Resilient Register Emulations|
|Max Alanuna||presents||Sehen: Secure Yet Efficient Virtual Network Embedding in a Multi-Cloud Environment|
| Altair Santin |
|presents|| Segurança para ambiente de Smart Grid
(Security for Smart Grid Environments)
|João Sousa||presents||Practical experiences with a BFT middleware database|
|José Rufino||presents||The (Hidden) Potential of Non-Intrusive Runtime Verification|
|Inês Gouveia||presents||Enforcing Safety and Security Through Non-Intrusive Runtime Verification|
Past Navtalk Events