International Journal of Engineering and Technology

A secure group communication in Mobile Ad-Hock Networks is challenging due to the mobility and limitations in computational and battery power of the nodes. This can be achieved by multicast routing protocol that ensures security through key management schemes. In this paper we proposed an energy efficient multicast routing protocol to establish the group in MANETS. In order to preserve security in data transmission, transitive signature scheme was introduced to enhance the security among the group nodes. The nodes may join/leave the group dynamically. To achieve this, the rekeying operation is performed for every change that happens in the group. The performance analysis on computational and communicational cost is done by varying group size and energy level of the nodes. This scheme results in low computational cost with respect to other protocols.