Description

Security has become a main anxiety in order to offer protected communication between mobile nodes in aggressive surroundings. Including dynamic topology and open wireless medium, may lead MANETs suffering from many security vulnerabilities. Most of existing approaches do not exploit observation to evaluate the trust of an observed node. We propose a unified trust management scheme that enhances the security in MANETs using SHA technique. We evaluate the proposed scheme in a MANET routing protocol, the improved trust management scheme.