Key agreement protocol based on Chebyshev polynomials for wireless sensor network

Aiming at the large node overheads and the poor security of the traditional key agreement protocol for wireless sensor network, an efficient and secure key agreement protocol based on Chebyshev polynomials over finite field was proposed. Through once message sending and receiving, two nodes can generate their communication key by semi-group property of Chebyshev polynomials. The proposed protocol can resist eavesdropping attack due to the one-way property in computation of Chebyshev polynomials and can also counteract tampering attack and forgery attack due to the message authentication mechanism. Copyright © 2014 Binary Information Press.