• Shiv Prakash Kumar
• Dr Mamatha T

One of the most important tasks of the sensor nodes is systematic collection of data and transmits gathered data to a distant base station (BS). Clustering tree has proven an effective approach for organizing a large scale WSN into connected groups increasing the lifetime and the reliability of such networks. Distance of the nodes from the base station and inter-node distances can have a high influence on saving energy and extending the network lifetime. In this process, a secure hash key generation method based attacker identification and data transmission in WSN is proposed. This optimizes clustering process by considering the energy, distance of each node. This feature will have a great effect in prolonging the network lifetime as it reduces the amount of energy wasted on replacing the node. To the best of our knowledge, few routing schemes have for delay less performance into consideration. Simulation result shows the proposed system decreases data collection delay, attacker free network and energy consumption compared with the existing schemes. In this work Propose a secure hash key generation method for providing attacker free network. This light-weight, one-way, cryptographic hash algorithm is suggested with a target to produce a hash-digest with fixed and relatively small length for such an energy-starved wireless network.

Group communication system, wireless sensor network, hash key generation

"An Approach for Secure Group Communication Mechanism in Wireless Sensor Networks", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.411-415, April-2019, Available :http://www.jetir.org/papers/JETIR1904C67.pdf

"An Approach for Secure Group Communication Mechanism in Wireless Sensor Networks", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp411-415, April-2019, Available at : http://www.jetir.org/papers/JETIR1904C67.pdf