Securing advanced healthcare architectures

Résumé

The progress achieved in the areas of microelectronics and wireless communication technologies have given birth to the development of miniaturized, autonomous and intelligent sensors. These latter have become essential elements in every healthcare monitoring system. The primary role of these equipments, which are placed on or in close proximity to the human body, is to participate in collecting the patient’s vital signs and then communicate them to a remote analysis center using wireless interfaces for process them in real-time. However, one of the major issues of these systems is the security of the collected data, which is considered as a major unresolved concern. Consequently, it is essential to ensure the security of these sensitive data during their transmission, as well as during their storage. Another issue comes to be added to the risk of altering the collected data, this concerns the requirements of medical applications and the constraint relating to the limited resources of the sensors which leave this problematic in search of an optimal resolution. The work carried out in this thesis focuses on authentication mechanisms based on morphological or physiological human features in mobile healthcare environments. Subsequently, the communications parties will be able to agree on a shared secret symmetric key to authenticate each other to ensure reliable collection and transmission of such critical data. The proposed schemes were evaluated through simulations, the obtained results indicate out performance and efficiency of our schemes with comparison to other concurrent ones, while providing effective security.

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