Abdelmajid Khelil (Huawei Technologies, Germany)

Date, Time and Location

Monday, March 11, 2013, 09:00--12:30
Room: t.b.a.


Critical Infrastructures (CI) such as power grid and industrial automation systems are increasingly interconnected and consequently opposed to multiple new threats such as cyber attacks. Therefore, Critical Infrastructure Protection (CIP) is becoming a more and more important research field.

Peer-to-peer (P2P) overlay networks generalize the established centralized Client-Server architecture (as in most of CIs) and create a decentralized architecture where equal peer nodes simultaneously act as clients and servers. Along with this decentralized architecture P2P overlays provide for self-organization and self-healing properties which emphasizes the potentials that P2P can provide in building robust and autonomous information and communication systems such as for enhancing the resilience of CIs. Furthermore, P2P architectures allow for masking strong heterogeneities in both communication nodes and links making them very attractive for the interconnected by-nature-heterogeneous CIs. In addition, P2P overlays operate well on dynamic network topologies as it is the case in future CIs that tend to integrate more and more dynamic wireless networks. Consequently, we consider P2P to play a major role in protecting CIs by enhancing their self-* properties and enabling their controlled evolvability for future applications.

In this Tutorial, we will discuss the potentials of P2P for CIP. We focus on CIs, which rely on Supervisory Control and Data Acquisition (SCADA) systems and present our work within the EU INSPIRE project as well as within the cooperation with the US GridStat project.


  • Motivation:
    • Relevant Examples of Recent Incidents
    • SCADA as the Core of Most CIs
  • SCADA Trends:
    • Increased Interconnection and Especially through the Internet
    • Increased Deployment of COTS Components
    • Increasing Failures and Cyber Threats
  • SCADA Vulnerabilities:
    • Existing vunlnerability Databases
    • The INSPIRE Ontology-based Tool for SCADA Vulnerability Analysis
  • Requirements on Critical Infrastructure Protection
    • Minimal Intrusiveness
    • Dependable and Secure Wide Area Monitoring
    • Scalable Data Management
  • Middleware Approaches for Enhancing the Resilience of Interconnected Large-scale SCADA (core part of the tutorial)
    • Using P2P to Protect Large-scale SCADA Systems (The EU INSPIRE approach,
    • Using Pub/Sub for Protection of Power Grid SCADA systems (The NASPI/TCIP/GRidStat US initiative,, Washington State University).
    • The INSPIRE-GridStat for a P2P-Pub/Sub Integrated Solution to Protect Power Grids.
  • Conclusions
    • Lessons Learnt
    • Future Challenges, in Particular, for Smart Grid Resilience.

About the Presenter

Abdelmajid Khelil received his MSc degree in Electrical Engineering in 2000 and his PhD in Computer Science in 2007 from the University of Stuttgart, Germany. He was a research team leader at TU Darmstadt, Germany, in the Dependable, Embedded Systems & Software Group until 2013. In 2013 he joined the European Research Center of Huawei Technologies in Munich. His main research interests span the areas of Information Quality Aware Design of Wireless Sensor Networks & Crowd-sourced Sensing, Mobile Transaction Processing, Dependable & Secure Peer-to-Peer Networks, and Critical Infrastructure Protection. He has lead the group's research activities in several national and international research projects such as EC FP7 INSPIRE, INSPIRE-inco, CoMiFin, INDEXYS, DFG GRK 1362, and CASED. He is an editorial board member of the Wiley IJCS and IET WSS journals. He has served as the PC member for multiple conferences such as ICDCS, MASS, ADHOC-NOW, SSS, and DSN. He is a member of IEEE, ACM, GI, and SCS. Additional professional details are available at