A Survey on Dynamic Key Management System in Secure Group Communication

Distributed Computing and Mobile Computing are created some measurable impact on growth in Information Technology with respect to all the streams of engineering. The major applications are designed with multiple communication among the components involved in that. Group communication (GC) is the concepts used for multicast broadcast between set of peoples. The cryptography kind of security (i.e.) encryption and decryption using the group key techniques is followed in group communication to achieve message authentication and confidentiality. The security implementations in the group communication becomes Secure Group Communication (SGC). To improve the performance of the group communication, it allows any user to join and existing user to leave at any time, it is called as group dynamic. In this group dynamic conditions, forward secrecy and backward secrecy are the two different security attack. To prevent the group from these security attack, the group key is frequently change during each transaction in the group member strength. The technical survey study is conducted on various key management techniques such as Bursty method, Join Exit Tree, Weighted Join Exit Tree, Huffman Join Exit Tree, Ternary Join Exit Tree during group dynamics.