A key agreement algorithm based on ECDSA for wireless sensor network

Abstract

Today the wireless sensor networks are being used extensively for general purposes and military aviation that results into the fulfillment of the security requirements. These networks are easily susceptible to attack. Many researchers provided security by using symmetric key cryptography but advanced research shows public key cryptography algorithms can also be used in WSN. Major studies and researches in literature nowadays stress on RSA and ECC algorithms but RSA consumes more energy than ECC. We propose a protocol to provide secure data delivery between node and gateway. Our protocol is based on ECDSA and the proposed scheme imposes very light computational and communication overhead with reducing the measure of key storage. Analysis depicts that the scheme has few merits in connectivity of key, consumption of energy and communication.