Secure Enhancement of ZHLS in Manet using Secure Hashing Algorithm

Mobile Ad-hoc Network (MANET) is a substantial field in while many of the users are using mobile devices for past few years where mobile ad-hoc routing in networks is one of the prominent issues. The routing protocol is aimed to give a better routing function from source to destination in terms of energy efficiency and security. Secure Zone Based Hierarchical Link State Routing Protocol utilized Digital Signature is one among in hybrid routing protocols for Mobile ad-hoc network, which is not satisfactory huge amount of within attacks that come from malicious nodes. A malicious node is losing the router data’s, data packets deliberately and routing protocol process get disturbed. To fix this problem, we suggested a unique method for productive key management, and prevention of malicious nodes. Security to the routing protocol is integrated with conventional Secure Hashing Algorithm (SHA-256) symmetric and asymmetric key encryption methods. The performance of the proposed algorithm is analyzed and results shown improvement in terms of the packet delivery portion, transmission aerial and ratio of released packets.