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Juan Hernandez Serrano1, Josep Pegueroles1 and Miguel Soriano1,2
1Department of Telematics Engineering
Technical University of Catalonia
08034 Barcelona, Spain
2Centre Tecnologic de Telecomunicacions de Catalunya
08860 Barcelona, Spain
E-mail: {jserrano; josep.pegueroles; miguel.soriano}@entel.upc.edu
Services in MANETs tend to be decentralized in order to share their cost between
their subscribers. Security is not an exception and thus shared self-organized security
schemes must be provided. Group Key Management (GKM) deals with the responsibility
of providing privacy and group authentication in group communications focusing in
the dynamism of the group (joins and leaves). We present a shared self-organized GKM
protocol targeted to MANETs. Main basis of the presented protocol is to extend GKM
protocols based on logical trees of keys towards being non-centralized and self-created.
Received March 9, 2007; revised May 22 & August 20, 2007; accepted October 9, 2007.
Communicated by Chin-Laung Lei.
* This work was supported by the Spanish Research Council under Grants SECONNET (CICYT - TSI2005-
07293-C02-01) and the CONSOLIDER CSD2007-00004 ¡§ARES¡¨, funded by the Spanish Ministry of Science
and Education.