Using One-way Hash Function Of Chaotic Semi-dynamical System Structure

First, we discuss the Lyapunov exponents of Logistic system and Lorenz system , they are all chaotic under some conditions. Secondly, making use of sensitive dependence on initial conditions of these two chaos systems, we construct a new Hash Function. Finally, we analysis the Hash Function that we constructed, and find the Hash Function has good randomicity and collision-avoided. It can be widely used in digital signature and authentication system.