A security and efficiency of authenticated key exchange protocol for wireless Mobile Ad Hoc Networks

Mobile Ad Hoc Networks (MANETs) are infrastructure-free, self-configuring and stand alone wireless networks. Lack of efficient computations and secure based point authentication, the security and efficiency of MANETs have been the biggest challenges in its wide application. Many researchers have applied RSA and ECC cryptography algorithms in building secure ID and key exchange agreement; however, they also have difficult to face the challenges of factoring large composite integers and computing discrete logarithms. Generally, public key infrastructures are assumed to be unavailable in MANETs. The key exchange problem for this type of network has now become important. In this article, we propose a new NTRU-based authenticated key exchange protocol for MANETs. We take advantage of NTRU cryptosystem of the inherent efficiency and security in this type of wireless networks - without any public key infrastructure - to defend message exchange against the threat of session key attacks, the man-in-the-middle attacks and the brute force attacks.