Review of Basic Secure Routing Protocols for MANETs

A Mobile ad hoc networks faces challenges in secure communications. The resource constraints on nodes in MANETs limit the cryptographic measures used to secure messages. Thus it is susceptible to link attacks ranging from passive eavesdropping to active impersonation, message replay and message distortion. Secure routing in MANETs is one of the most emerging areas of research. Designing a foolproof secure routing protocol is a challenging task due to its unique network characteristics. Number of secure routing protocols already developed but these are not work under different attacks.Availability of network services, confidentiality and integrity of the data can be achieved by ensuring that security issues have been met. In this paper the basic secured routing protocols used for MANETs are reviewed. Further this study will help the researchers to get an overview of the existing secure routing protocols and suggest which protocols may perform better with respect to varying network scenarios under different attacks