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oai:recercat.cat:2117/165752026-02-08T03:59:12Zcom_2072_1033col_2072_452950

Low-cost group rekeying for unattended wireless sensor networks Hernández Serrano, Juan Vera del Campo, Juan Victoriano Pegueroles Vallés, Josep R. Gañán, Carlos Universitat Politècnica de Catalunya. Departament d'Enginyeria Telemàtica Universitat Politècnica de Catalunya. SERTEL - Serveis Telemàtics Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils Mobile communication systems Comunicacions mòbils, Sistemes de Telecomunicació Wireless sensor networks (WSNs) are made up of large groups of nodes that perform distributed monitoring services. Since sensor measurements are often sensitive data acquired in hostile environments, securing WSN becomes mandatory. However, WSNs consists of low-end devices and frequently preclude the presence of a centralized security manager. Therefore, achieving security is even more challenging. State-of-the-art proposals rely on: (1) attended and centralized security systems; or (2) establishing initial keys without taking into account how to efficiently manage rekeying. In this paper we present a scalable group key management proposal for unattended WSNs that is designed to reduce the rekeying cost when the group membership changes. Peer Reviewed Postprint (published version) 2012 Article Juan Hernández Serrano [et al.]. Low-cost group rekeying for unattended wireless sensor networks. "Wireless networks", 2012. 1022-0038 https://hdl.handle.net/2117/16575 10.1007/s11276-012-0450-3 eng http://dx.doi.org/10.1007/s11276-012-0450-3 http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Restricted access - publisher's policy Attribution-NonCommercial-NoDerivs 3.0 Spain application/pdf