Detecting Attacks and Providing Secure Transmission in MANET

MANET is a network that consists of mobile autonomous nodes often composed of mobile devices. Here the nodes must cooperate with each other to establish communication. Each node in the MANET acts as a router by cooperating with each other's to forward data packets. The presence of collaboration of malicious nodes may disrupt the routing processes and lead to network failures. The lack of infrastructure with dynamic topology may lead MANETs to be exposed to black hole attacks and gray hole attacks. If there are malicious nodes present in the MANET it may violate Security conditions and launch grey hole attacks and black hole attacks. This can be overcome by CBDS which is defined using DSR protocol which integrates both proactive and reactive defense architectures. CBDS uses the reverse tracing algorithm. A security algorithm is proposed to enhance security, increase and refine the throughput and increase the packet delivery ratio. The proposed security algorithm outperforms the CBDS scheme. Citation: S.Sangavi Priyadarshini, K.L.N.College of Engineering; Dr. N.Lakshmi Narasimman ,. "Detecting Attacks and Providing Secure Transmission in MANET." Global Research and Development Journal For Engineering : 89 - 93.