A MODIFIED ENHANCED KEY MANAGEMENT SCHEME FOR WSN

Computer Engineering

Wireless sensor networks (WSNs) consisting of low power, low-cost intelligent devices that have limited IT resources. With an overall growth of WSN applications, security mechanisms are also a big problem on the rise. Many Real world applications have already been deployed and many of them will be based on wireless sensor networks. Examples of these applications include surveillance, health care, manufacturing, transportation, military operations, environmental monitoring, industrial machine monitoring and surveillance. Wireless sensor network security issues have three aspects, key management, authentication, and secure routing. As the features of wireless sensor network node resource are limited, asymmetric key system has been considered unsuitable for wireless sensor networks; after elliptic curve cryptography (ECC) has been proposed, asymmetric key system application in wireless sensor networks has become possible. Compared to the symmetric key system, asymmetric key system has great advantages in terms of management and security keys. In recent years, many scholars have proposed many effective key management schemes based on ECC public key infrastructure. The proposed and implemented work deals with key management which is based on Diffie-Hellman algorithm. This approach avoids the storage requirements for the key and avoids the security risks for the master key or the key derived from the master key. The approach is suitable for any type of wireless sensor network which contribute to the security of Wireless sensor network. The approach makes the pair wise key for the communication and provides the secure and authenticated access to the information exchange between nodes which satisfy the objectives of the work proposed.

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