AWGN based seed for random noise generator in ParseKey+

Abstract

This research presents an enhancement in the ParseKey+ authentication scheme presented in an earlier research. Basically, ParseKey+ relies on scattering sub-keys in a block of uniformly created random noise. The sequence of noise is created using the same hash function used to create the sub-key itself. Using timestamp as seed does not help in countering replay attack in one-way encryption functions as it cannot be discovered to be compared in sequence. However, its imperfect usage causes discovering the sequence of generated random noise so that subkeys are distinguishable. We require a pure uniform random noise to be used as seed of hash function. In this respect, Additive White Gaussian Noise (AWGN) is used to provide sequence of seeds for hash function in generating ParseKey+ noise file. Similarly, such random noise can be applied in all security schemes relying on one-way encryption algorithms or in those which need instant update of the key without having any dependency in key sequence. Copyright 2009 ACM.