Secure and Efficient data trnsmission using Sniffer for clustered based Wireless Sensor Networks

The wireless sensor network (WSN) consists of spatially distributed wireless sensor nodes to monitor physical or environmental conditions, such as sound, temperature, and motion. The individual nodes are capable of sensing their environments, and sending data to one or more collection points in a WSN. Secure data transmission is an important issue for wireless sensor networks (WSNs). Clustering is an effective and practical way to increase the system performance of WSNs. In the proposed system, SET-IBS (Identity-Based digital Signature scheme) and SET-IBOOS (Identity-Based Online/Offline digital Signature scheme) protocols are used for secure data transmission. In SET-IBS, security depends on the hardness of the Diffie-Hellman problem in the pairing domain. SET-IBOOS further decreases the computational overhead for protocol security, which is crucial for WSNs, while its security depends on the hardness of the discrete logarithm problem. And also sniffer is used for extra security.