Key Revocation for Identity-Based Schemes in Mobile Ad Hoc Networks

  • Katrin Hoeper
  • Guang Gong
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4104)


Recently, identity-based cryptographic (IBC) schemes have been considered to secure mobile ad hoc networks (MANETs) due to their efficient key management properties. However, proposed schemes do not provide mechanisms for key revocation and key renewal. In this paper, we propose the first key revocation and key renewal mechanisms for IBC schemes that are especially designed for MANETs. In our fully self-organized revocation scheme, each node monitors nodes in communication range and securely propagates its observations. The public key of a node is revoked if a minimum number of nodes accused the node. To enable key renewal, we introduce a modified format for ID-based public keys, such that new keys can be issued for the same identity. The introduced revocation scheme is efficient because it uses pre-shared keys from the Weil pairing and messages are sent to an m-hop neighborhood instead to the entire network.


Identity-Based Schemes Revocation Key Renewal Mobile Ad Hoc Networks Neighborhood Monitoring 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Katrin Hoeper
    • 1
  • Guang Gong
    • 1
  1. 1.Department of Electrical and Computer EngineeringUniversity of WaterlooWaterlooCanada

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