The Research Of Identity Authentication Based On Chaos Theory

Chaotic system is a deterministic nonlinear dynamic system, the class of random process, which is extremely sensitive to the change of the initial value.Even if initial conditions change a little, the final result will be very different. When the system dynamic equations are given and the parameters and initial value are set, chaotic systems can produce the large number of non-related, random and determined renewable signal the chaotic sequence. A new hyperchaotic system model is constructing in this paper. Then synchronization stability condition and kinetic properties are researched. In complex network environment of multiple,highly secure authentication based on hyperchaotic system, which use"one-time password"dynamic password verification,is completed.Firstly,a new five-dimensional hyperchaotic system,based on classical lÇšsystem,is construct by introducing two linear feedback controller.Kinetic properties are analyzed elaborately, such as dissipative, chaotic attractors and stability of equilibrium points.The spectrum of Lyapunov index,which is feature of hyperchaotic behavior, are drawn by experimental simulation.Secondly,based on hyperchaotic system, the identity authentication model of complex information exchange netndwork is established. the cross customer permissions of access are allocated.The system use "one time password" dynamic password verification,the password changed every time.The track of password can not be predict.it is difficult to steal the password, so the system can prevent replaying attack of message.Identity authentication technology is based on hyperchaotic system. The chaotic sequences, which are produced by hyperchaotic system, is used for the identity sequence. Any person forges the identity sequence of others is impossible.Finally,the five-dimensional hyperchaotic system is used for a research model. The synchronization control of system is completed by three methods, such as the synchronization control of nonlinear feedback, synchronous control of separation linear and synchronous control of linearly coupled. According to the principle of linear stability, the range of parameters are discussed in the synchronization control of nonlinear feedback and the synchronous control of separation.The research results are proved by the experimental simulation method.