Hybrid Security Mechanism for MANET

Network Security

MANET is a type of network where the group of mobile devices generates the network without any kind of Infrastructure. In MANET mobile nodes cooperatively forward the packet to the nodes which is not in its direct range. Any node is free to join and leave the network when they want. Due to its self-configuration and infrastructure less characteristics it is very vulnerable to different types of attacks. There are two types of problems in this kind of network is network performance and security. Proposed technique provides secure data transmission in MANET. Technique involves hybrid cryptography; it uses symmetric key cryptographic technique (MAES) for data encryption and asymmetric key cryptographic technique (ECC) for session key encryption. For integrity it also uses MD5 algorithm. The proposed Hybrid Security Mechanism is implemented in NS2 environment. The outcome shows that as the number of node increases performance of network decreases.

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