Visible to the public Biblio

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Romdhane, R. B., Hammami, H., Hamdi, M., Kim, T..  2019.  At the cross roads of lattice-based and homomorphic encryption to secure data aggregation in smart grid. 2019 15th International Wireless Communications Mobile Computing Conference (IWCMC). :1067—1072.

Various research efforts have focused on the problem of customer privacy protection in the smart grid arising from the large deployment of smart energy meters. In fact, the deployed smart meters distribute accurate profiles of home energy use, which can reflect the consumers' behaviour. This paper proposes a privacy-preserving lattice-based homomorphic aggregation scheme. In this approach, the smart household appliances perform the data aggregation while the smart meter works as relay node. Its role is to authenticate the exchanged messages between the home area network appliances and the related gateway. Security analysis show that our scheme guarantees consumer privacy and messages confidentiality and integrity in addition to its robustness against several attacks. Experimental results demonstrate the efficiency of our proposed approach in terms of communication complexity.

Gharsallaoui, R., Hamdi, M., Kim, T..  2017.  A Novel Privacy Technique for Augmented Reality Cloud Gaming Based on Image Authentication. 2017 13th International Wireless Communications and Mobile Computing Conference (IWCMC). :252–257.

The evolution of cloud gaming systems is substantially the security requirements for computer games. Although online game development often utilizes artificial intelligence and human computer interaction, game developers and providers often do not pay much attention to security techniques. In cloud gaming, location-based games are augmented reality games which take the original principals of the game and applies them to the real world. In other terms, it uses the real world to impact the game experience. Because the execution of such games is distributed in cloud computing, users cannot be certain where their input and output data are managed. This introduces the possibility to input incorrect data in the exchange between the gamer's terminal and the gaming platform. In this context, we propose a new gaming concept for augmented reality and location-based games in order to solve the aforementioned cheating scenario problem. The merit of our approach is to establish an accurate and verifiable proof that the gamer reached the goal or found the target. The major novelty in our method is that it allows the gamer to submit an authenticated proof related to the game result without altering the privacy of positioning data.

Hong, Y. K., Nam, H. S., Lee, S. J., Kim, T., Jeong, Y. K..  2017.  Hierarchy Architecture Security Design for Energy Cloud. 2017 International Conference on Information and Communication Technology Convergence (ICTC). :1187–1189.

Recently, the researches utilizing environmentally friendly new and renewable energy and various methods have been actively pursued to solve environmental and energy problems. The trend of the technology is converged with the latest ICT technology and expanded to the cloud of share and two-way system. In the center of this tide of change, new technologies such as IoT, Big Data and AI are sustaining to energy technology. Now, the cloud concept which is a universal form in IT field will be converged with energy field to develop Energy Cloud, manage zero energy towns and develop into social infrastructure supporting smart city. With the development of social infrastructure, it is very important as a security facility. In this paper, it is discussed the concept and the configuration of the Energy Cloud, and present a basic design method of the Energy Cloud's security that can examine and respond to the risk factors of information security in the Energy Cloud.