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Trust Metrics for Group Key Management in Malicious Wireless Networks

Group communication is accomplished with the aid of group key management by preventing non-group members from accessing data exchanged. For improving security in wireless networks trust information has been widely used. In this work trust is used as a criterion for cluster formation.Direct trust and indirect trust is computed to identify Cluster Heads (CH) and the concept of backup cluster head is introduced for effective key management. Simulation results show the proposed method performs better in group key management than other techniques found in literature.