A Novella Framework for Secure Data Aggregation in Wireless Sensor Networks using Symmetric Homomorphic Encryption Scheme (SHES)

Wireless Sensor Networks becoming emerging Technology which consist of a variety of sensor nodes that monitor and record conditions at diverse locations. Wireless Networks are restricted with energy constraint. Data Aggregation is a method of efficient delivery of summarized results by ensuring privacy& Security. With Data Aggregation we can eliminate redundant data transmission there by reducing energy consumption& performance of the wireless sensor networks is increased. The aim of secure data Aggregation is to achieve two critical objectives namely Security& Aggregation. Here we proposed an End to End Privacy and Aggregation using Symmetric homomorphic encryption. Homomorphic Encryption is a form of encryption that allows computations to be carried out on the cipher text, thus generating an encrypted result which when decrypted matches result of operation performed on plain text. This symmetric key based homomorphic encryption significantly reduces energy consumption there by increases life time of sensor nodes.