Tutorial 1: Cryptography and Security in Internet of Things (IoTs): Models, Schemes, and Implementations
Dr. Nicolas Sklavos
Dr. I. D. Zaharakis
Internet of Things (IoT) has attracted the interest of the research community, at a great manner the last years. It is one of the most hot topics, for future and current research directions, regarding both academia and industry sectors. Security and privacy issues of IoT are proven targets of great importance. This work brings together models, schemes and implementation aspects, regarding the alternative technologies of IoT. It focusses on the knowledge for the implementation efficiency, basically in hardware terms, of communications confidentiality, user authentication, data integrity and services availability. Special attention has been paid regarding attacks and modern threats, as well as to countermeasures against them. Different IoT infrastructures are examined and alternative trust models are presented. Policy issues are also considered.
Dr. Nicolas Sklavos is an Associate Professor, with the Computer Engineering Informatics Department, of the University of Patras, Greece. He holds an award for his PhD thesis on “VLSI Designs of Wireless Communications Security Systems”, from IFIP VLSI SOC, Germany, 2003. He has participated to a great number of European and National Projects, with research development activities, funding by the European Commission or/and National Resources. He has participated to the committees for more than 180 conferences organized by IEEE, ACM, IFIP, as Publicity, Publication Chair, Program and Technical Committee Member. he has authored and co-authored up to 200 scientific articles, published in journals, conferences, books and technical reports, in the areas of his research. He has been invited as keynote speaker to several international conferences, workshops, and summer schools.
Until now, the results of his research have received more than 1600 citations in the literature. His research interests include Cryptographic Hardware, Security, Digital Systems Design, System-On- Chip, and Embedded Systems.
Dr. Ioannis D. Zaharakis is an Associate Professor with the Computer and Informatics Engineering Department of the Technological Educational Institute of Western Greece, where he teaches software design and engineering as well as Artificial Intelligence and Ubiquitous Computing. He received his B.Sc. in Mathematics (in 1992) and his Ph.D. (in 1999, in Software Engineering) both from the Dept. of Mathematics, Univ. of Patras, Greece. In 2002, he joined the DAISy Unit at Computer Technology Institute & Press “Diophantus” as a Researcher/R&D Engineer, focusing on the formal specification of component-based ubiquitous computer systems; he is Managing Director of the Research Unit DAISy (http://daisy.cti.gr) since 2009. During 1993-1999, he was researcher in the Educational Software Development Lab, University of Patras, where he was involved in the specification, design and implementation of intelligent tutoring systems. He has participated in several EU-funded and national R&D projects. He has authored two textbooks for the Hellenic Open University and more than 30 papers that have been published in international journals and conferences. He is a member of the Hellenic AI Society and the Hellenic Mathematics Society.
Tutorial 2: Performance guarantees in Wireless Sensor Networks: Issues, challenges and solutions, from congestion control to mobility management approaches
Dr. Vasos Vassiliou, & Dr. Charalambos Sergiou
Performance, in terms of throughput, time delay and power consumption, is now a dominating factor that leads research in WSNs. Several emerging WSN applications need immediate and guaranteed actions. In such environments, data has to be transported reliably and in time through the wireless sensor network.
In this tutorial we present and analyze the issues and challenges that need to be faced when attempting to design WSNs with performance guarantees.
After this analysis, we present specific solutions that guarantee high and stable performance of
- Congestion occurs
- Mobile nodes are employed in the network.
In particular, we present two different congestion control solutions as well as a mobility management approach.
The first congestion control approach is based on a nature‐inspired model. This model adapts techniques from nature and demonstrates their usefulness in combating congestion in WSNs under variable network and traffic conditions focusing on performance guarantees.
The second congestion control approach focuses on employing the unused nodes by creating alternative paths to the sinks without affecting the performance of the network.
Finally, we present a mobility management protocol that can be applied in critical applications and that efficiently maintains the connectivity of the mobile node by controlling the handoff procedure (triggering and execution).
Dr. Vasos Vassiliou is an Assistant Professor at the Computer Science Department of the University of Cyprus. He also co‐directs the Networks Research Laboratory (NetRL) at UCY.
He held positions as a Lecturer and Visiting Lecturer at the same department (2004‐2005, 2005‐2011) and as an Assistant Professor at the Computer Science Department of Intercollege (2002‐2004). He has published several articles in International Conferences and Journals and participates actively in COST actions, local, and European Projects. His research interests include Network Architectures (IPv6, MPLS), Mobile Networks (Mobile IP, Mobile MPLS, Ad Hoc and Sensor Networks), Wireless Communications (Protocol enhancements for 3G/4G cellular wireless networks) and Quality of Service (QoS) and Traffic Engineering for computer and telecommunication networks. He holds an M.Sc. (1999) and a Ph.D. (2002) from the Georgia Institute of Technology both in Electrical and Computer Engineering. He is a member of IET (former IEE), IEEE, ACM, and participates in the Technical Program Committees of several international conferences, such as Globecom, VTC, PIMRC, and European Wireless. He is also an Associate Editor of the Journal of Telecommunication Systems.
Dr. Charalambos Sergiou received his Engineering Diploma from the Electronics and Telecommunications Department of Hellenic Air‐ Force Academy in Athens, Greece, in 2000. In 2007 he received MSc degree in Advance Information Technology, from the Department of Computer Science, of University of Cyprus and in 2012 Ph.D degree from the same Department. Currently, he is Post‐ Doc researcher and his reseach interests include wireless ad‐hoc and sensor networks, focusing on overload and congestion control.