Prevention for Black hole attack in MANET using AODV Protocol: Review.

Black hole attack is one of the active DoS attacks possible in MANETs so has got lots of attention by the researchers. Research focus mainly given to securing existing routing protocols, developing new secure routing protocols, and intrusion detection techniques. Researchers have proposed various techniques to prevent black hole attack in mobile ad-hoc networks. Many studies on MANET focus on the protocols used their security issues such as data encryption, authentication, trust, and cooperation among nodes, attacks on the protocols and proposed solutions or preventions.