Contribution to chaotic and fractional data cryptography

Abstract

With the rapid development of network technology and multimedia, digital information can be transported in different form conveniently. People can exchange information and trade online easily. The internet does not just bring convenience to people's lives but also involves risks. Some sensitive information can be stolen and even distributed illegally. It is linked to political, diplomatic and military life, economic, social and commercial security. Since chaos has good cryptography properties such as randomness, aperiodicity, extremely sensitive to initial conditions and parameters, forcing the robustness of data cryptography. This thesis revolves around two main objectives. The first is to design chaotic and fractional order synchronization systems. The development of new chaos based cryptography and transmission schemes is the second objective of this thesis.