A Study of the Algebraic Attacks on Stream Ciphers
Liu Hai · 2004
In this paper,the basic contents of the algebraic attacks on stream ciphers with linear feedback are introduced. A simple description is given to the general arithmetic of algebraic attacks and the type of stream ciphers that can be attacked,The rule discovered by Courtois at algebraic attacks on stream ciphers with (and without) memory is presented,and two new criterion on selecting good Boolean function are presented. A general algebraic attacks on ciphers which the nonlinear combiner unknown is put forward by writer,The contribution and shortage of algebraic attacks are summarized.