A Generalized Synchronization Theorem for Discrete-time Chaos System with Application in Data Encryption Scheme

摘要：

A constructive theorem of generalized synchronization (GS) for discrete-time chaos system (DTCS) is introduced.Based on the theorem, one can design a GS driven DTCS via a driving chaotic DTCS. As an application, a GS DTCS is constructed based on the Lorenz three-dimensional chaotic map and the Theorem. Using the DTCS designs a encryption scheme with one-time pad function. This scheme is able successfully to encrypt and decrypt original information without any loss. The scheme is sensitive to the perturbations of the parameters and initial conditions of the DTCS. Any perturbations which are larger than 10<-15> will make corresponding decryptions become impossible. The key space of the scheme is as large as 10<204>. The analysis of the key space, sensitivity of key parameters show that this scheme has sound security. Numerical simulations show that our scheme is effective to be used in secure communication.

作者: Hongyan Zang Lequan Min Geng Zhao

作者单位: Applied Science School and Information School University of Science and Technology Beijing Beijing 1 Department of Computer Science Beijing Electronic Science and Technology Institute, Beijing 100070,

会议类型: 国际会议

会议名称: 2007年通信、电路与系统国际会议(2007 International Conference on Communications,Circuits and Systems Proceedings)

会议地点: 日本福冈

会议语种:英文

在线出版日期: 2007-07-11（万方平台首次上网日期，不代表论文的发表时间）