Abstract
Secure group communication for large wireless sensor networks sparkles the research on efficient key distribution and key management mechanism. By a self-healing key distribution scheme, even if during a certain session, some broadcast messages are lost due to network faults, the users are capable of recovering the lost session keys on their own without requesting additional information exchange with the group manager. However, some self-healing key distribution schemes are unable to prevent collusion attacks effectively. In this paper, a general self-healing session key distribution approach is devised to thwart collusion attacks. Furthermore, an effective collusion resilient key distribution scheme is proposed for the secure group communication in wireless sensor networks.
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