Development of a Strong Stream Ciphering Technique Using Non-linear Fuzzy Logic Selector
Ahmed M. Al-Naamany, Afaq Ahmad · 2003
This paper introduces a new methodology of producing Pseudo- Random Binary Sequence (PRBS) of high complexity while with lesser burden of the processing requirements. The key idea behind the implementation of the proposed methodology is the use of a nonlinear fuzzy logic selector. A set of Linear Feedback Shift Registers (LFSRs) of nominal but varying lengths is used to reduce the processing as well as hardware burdens. In the proposed scheme, the LFSRs can be loaded with different configurations according to changed characteristic polynomials and polynomial seeds. This facilitation is being arranged such that they are to be selected by fuzzy logic selector switches. Further, the inputs to the fuzzy logic selector are based on user-defined parameters.