Date Added: Jun 2012
The popularity of group-oriented applications, secure and efficient communication among all group members has become a major issue. Another major issue is that to provide dynamic rekeying for all the users that join and leave the group. For the rekeying of the group key all members of the group should agree the rekeying of the key. When keys are distributed dynamically the content should be handled by an authenticated person and safe communication must be enhanced. In this paper, the authors present a solution for dynamic rekeying by optimized rekey method to generate dynamic rekey for the users. This mechanism maintains the key server for frequent updating of key and calculating the key length to minimizing the storage cost as well as computational cost.