A brief overview of security attacks and protocols in MANET

Mobile Ad-hoc networks(MANETs) have become an important part of our day to day life. Nowadays MANETs are used in battlefield applications, crisis management applications etc. as it is compatible for multimedia data exchange in a mobile environment. In recent days, the security of MANET has become the primary concern. Due to its lack of centralized management MANETs are more prone to malicious attacks which includes eavesdropping, impersonation, denial of service etc. Because of its dynamic nature, limited battery power, bandwidth constraints and mobility etc. Building a secure environment for MANET is a very hard task. This paper provides a brief survey of various security attacks and protocols which improves the overall performance of MANETs.