ACCELERATED BROADCAST AUTHENTICATION WITH SIGNATURE AMORTIZATION FOR WSNS

Minnu Meria Mathew, Anjitha Mary

Abstract: Asymmetric Key Cryptography is widely used in broadcasting areas for authentication. But it is considered to be expensive to wireless sensor networks. This proposed system is a novel broadcast authentication scheme based on PKC with signature amortization. This scheme uses single Signature for authenticating a group of broadcast messages. As a result, the overhead is spread over that group of broadcast messages. Moreover, this scheme gives high security and low overhead also. But signature verification in ECDSA slower than signature generation. So, broadcast authentication with ECDSA has also suffered large energy consumption and lengthy verification delay. To reduce, this system uses cooperation among sensor nodes, which helps to accelerate the signature verification. During Signature verification, sensor nodes which have high energy allowed to leave the intermediary results of the signature verification process to their neighbors for accelerating the same. Simulation results show that the overhead of message authentication and the delay of verification of authenticated messages is reduced significantly

Keywords: .Wireless sensor networks; Broadcast authentication; Cooperative Communication; signature amortization

DOI: https://doi.org/10.15623/ijret.2014.0327014