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J. Zhou, J. A. Onieva, and J. Lopez, "Optimised Multi-Party Certified Email Protocols",
Information Management & Computer Security Journal, vol. 13, no. 5, pp. 350-366, 2005. More..

Abstract

As a value-added service to deliver important data over the Internet with guaranteed receipt for each successful delivery, certified email has been discussed for years and a number of research papers appeared in the literature. But most of them deal with the two-party scenarios, i.e., there are only one sender and one recipient. In some applications, however, the same certified message may need to be sent to a set of recipients. In this paper, we presents two optimized multi-party certified email protocols. They have three major features. (1) A sender could notify multiple recipients of the same information while only those recipients who acknowledged are able to get the information. (2) Both the sender and the recipients can end a protocol run at any time without breach of fairness. (3) The exchange protocols are optimized, each of which have only three steps.

PDF icon Zhou2005.pdf (232.69 KB)
C. Alcaraz, J. Lopez, and S. Wolthunsen, "OCPP Protocol: Security Threats and Challenges",
IEEE Transactions on Smart Grid, vol. 8, issue 5, IEEE, pp. 2452 - 2459, 02/2017. DOI (I.F.: 7.364)More..

Abstract

One benefit postulated for the adoption of Electric Vehicles (EVs) is their ability to act as stabilizing entities in smart grids through bi-directional charging, allowing local or global smoothing of peaks and imbalances. This benefit, however, hinges indirectly on the reliability and security of the power flows thus achieved. Therefore this paper studies key security properties of the alreadydeployed Open Charge Point Protocol (OCPP) specifying communication between charging points and energy management systems. It is argued that possible subversion or malicious endpoints in the protocol can also lead to destabilization of power networks. Whilst reviewing these aspects, we focus, from a theoretical and practical standpoint, on attacks that interfere with resource reservation originating with the EV, which may also be initiated by a man in the middle, energy theft or fraud. Such attacks may even be replicated widely, resulting in over- or undershooting of power network provisioning, or the (total/partial) disintegration of the integrity and stability of power networks.

Impact Factor: 7.364
Journal Citation Reports® Science Edition (Thomson Reuters, 2017)

PDF icon AlcarazLopezWolthusen2017.pdf (389.27 KB)
D. G. Rosado, E. Fernandez-Medina, and J. Lopez, "Obtaining Security Requirements for a Mobile Grid System",
International Journal of Grid and High Performance Computing, vol. 1, IGI-Global, pp. 1-17, Jan 2009. DOI More..

Abstract

Mobile Grid includes the characteristics of the Grid systems together with the peculiarities of Mobile Computing, withthe additional feature of supporting mobile users and resources ina seamless, transparent, secure and efficient way. Security ofthese systems, due to their distributed and open nature, isconsidered a topic of great interest. We are elaborating amethodology of development to build secure mobile grid systemsconsidering security on all life cycle. In this paper we present thepractical results applying our methodology to a real case,specifically we apply the part of security requirements analysis toobtain and identify security requirements of a specific applicationfollowing a set of tasks defined for helping us in the definition,identification and specification of the security requirements onour case study. The methodology will help us to build a securegrid application in a systematic and iterative way.

PDF icon rosado2009c.pdf (219.29 KB)