SECURE QoS-BASED ROUTING USING HIERARCHICAL KEY RANKING MODEL IN MANET

Quality of service (QoS) and security have been considered as two competent units to govern and administer end-to-end traffic across network. A mobile ad hoc network (MANET) is a type of wireless communication, every node can act as a router or base station. Secure QoS-based routing is an important problem in MANET. A hierarchical key ranking (HKR) model is presented here for secure group communications in MANETs. To enhance the security, one-to-one random mapping is performed using hash-based message authentication code (Hash(MAC)). Due to the dynamic nature and topological changes in MANET, group safeguarding is efficiently accomplished. For secure group communication and efficient QoS routing in MANET, a sector key (SK) is shared among group members to encrypt group messages which is obtained using secured message authenticated code (SMAC). The primary design is to include the group members in sector to vigorously contribute to the security of the multicast group, as a result dropping the communication and calculating load on the source. Experimental evaluation is done to estimate the performance of the proposed secure QoS routing and communication using hierarchical key ranking [SRHKR] in MANET in terms of delivery rate, security level, delay.