The Design And Analysis Of Nonlinear Combining Sequences

The nonlinear combining sequences as an important key sequence generators, its design and analysis are always hotspot and difficulty of stream cipher?The paper discuss central field and research actuality of nonlinear combining sequences, including linear complexity of nonlinear combining sequences, the stability of nonlinear combining sequences, the design of nonlinear combining sequences, and the analysis of nonlinear combining sequences ?Based on these, we construct a class of nonlinear sequence generators, show that they have better cryptographical properties, and furthermore they can resist on the attack of cipher by cryptology analysis So they can be used as key sequence generators.. Also we discuss the applications of differential cryptanalysis and higher order differential cryptanalysis in nonlinear combining sequences, present some properties of differential sequence, and give some attack samples for serval nonlinear combining sequence generators?It has important guidance significance for taking differential cryptanalysis to the design and analysis of stream cipher...