AN OPTIMAL KEY MANAGEMENT IN WIRELESS NETWORK

The development of several aggregation-based services, multiple multicast clusters are likely to synchronize in a single network, and users may contribute to multiple clusters concurrently. The aim of actual Group Key Management is to secure a single group of element but It does not suitable for multicast group element, due to ineffective use of keys. We suggest a new GKM theme for multiple multicast teams, referred to as the master-key-encryption-based multiple cluster key management (MKE-MGKM) theme. The MKE-MGKM scheme exploits asymmetric keys, i.e., a base key and multiple derived keys, which are generated from the projected base key encryption (MKE) algorithm and is effective distribution of the cluster key. It relieves the rekeying overhead by using the imbalance of the base and derived keys used for effective distribution of the cluster key. It relieves the rekeying overhead by using the asymmetry of the base and derived keys,

i.e., if derived class is updated, other class should not change by only change the base key

Key Words:  Security, cluster key management, multicast, base key encryption