C. Sivakumar, Dr .C. Nalini,. “Efficient Group Key Management Using Whale Optimization Algorithm Based Elliptic Curve Cryptography for Dynamic Multicast Groups”. International Journal of Advanced Science and Technology, Vol. 29, no. 8s, May 2020, pp. 2415 -31, http://sersc.org/journals/index.php/IJAST/article/view/14717.