On Dynamic Distribution of Private Keys over MANETs | Zendy

Vanesa Daza | Zendy; Paz Morillo | Zendy; Carla Ràfols | Zendy

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On Dynamic Distribution of Private Keys over MANETs

Author(s) -

Vanesa Daza,

Paz Morillo,

Carla Ràfols

Publication year - 2007

Publication title -

electronic notes in theoretical computer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.242

H-Index - 60

ISSN - 1571-0661

DOI - 10.1016/j.entcs.2006.11.008

Subject(s) - computer science , mobile ad hoc network , computer network , protocol (science) , distributed computing , scheme (mathematics) , key (lock) , cryptography , secret sharing , key distribution , identity (music) , computer security , wireless ad hoc network , public key cryptography , encryption , wireless , mathematics , telecommunications , medicine , mathematical analysis , physics , alternative medicine , pathology , network packet , acoustics

Identity-Based cryptography has been proposed in mobile ad-hoc networks (MANETs) to provide security. However, the figure of the Private Key Generator (PKG) is not adequate in the MANET setting, since it may not be reachable by all nodes, can fail during the life-time of the protocol or can even be attacked, compromising the whole system. Previous works distribute the task of the PKG among a set of nodes by means of a secret sharing scheme.In this paper we propose an efficient solution to emulate in a dynamic and distributed way the role of the PKG in so that even new nodes joining the network are able to issue shares of the master key of an Identity-Based scheme. In this way, the distributed PKG spreads dynamically among the nodes as the network increases. Furthermore, the techniques we propose may be suitable for other protocols over MANETs

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