OSCAR: Object Security Architecture for the Internet of Things

Malisa Vucinic 1, 2, * Bernard Tourancheau 1 Franck Rousseau 1 Andrzej Duda 1 Laurent Damon 2 Roberto Guizzetti 2
* Auteur correspondant
1 Drakkar
LIG - Laboratoire d'Informatique de Grenoble
Abstract : Billions of smart, but constrained objects wirelessly connected to the global network require novel paradigms in network design. New protocol standards, tailored to constrained devices, have been designed taking into account requirements such as asynchronous application traffic, need for caching, and group communication. The existing connection oriented security architecture is not able to keep up---first, in terms of the supported features, but also in terms of the scale and resulting latency on small constrained devices. In this paper, we propose an architecture that leverages the security concepts both from content-centric and traditional connection-oriented approaches. We rely on secure channels established by means of (D)TLS for key exchange, but we get rid of the notion of the 'state' among communicating entities. We provide a mechanism to protect from replay attacks by coupling our scheme with the CoAP application protocol. Our object-based security architecture (OSCAR) intrinsically supports caching and multicast, and does not affect the radio duty-cycling operation of constrained objects. We evaluate OSCAR in two cases: 802.15.4 Low Power and Lossy Networks (LLN) and Machine-to-Machine (M2M) communication for two different hardware platforms and MAC layers on a real testbed and using the Cooja emulator. We show significant energy savings at constrained servers and reasonable delays. We also discuss the applicability of OSCAR to Smart City deployments.
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Communication dans un congrès
A World of Wireless, Mobile and Multimedia Networks (WoWMoM), 2014 IEEE 15th International Symposium on, Jun 2014, Sydney, Australia. 2014, 〈10.1109/WoWMoM.2014.6918975〉
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Malisa Vucinic, Bernard Tourancheau, Franck Rousseau, Andrzej Duda, Laurent Damon, et al.. OSCAR: Object Security Architecture for the Internet of Things. A World of Wireless, Mobile and Multimedia Networks (WoWMoM), 2014 IEEE 15th International Symposium on, Jun 2014, Sydney, Australia. 2014, 〈10.1109/WoWMoM.2014.6918975〉. 〈hal-00985976v2〉

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