A new chaotic secure communication scheme based on shape synchronization

This paper presents a new way to transmit and retrieve an information signal via chaotic systems based on shape synchronization. In contrast to existing schema with chaotic synchronization, the scheme is adopted for the purpose of faster synchronization and high security. Firstly, the drive signals are synthesized chaotic signal instead of drive variables in order to high security. Secondly, the drive and available signal are separated, which avoid affecting the synchronization between master and slave systems thereby enhance confidentiality. In addition, the purposed control approach can complete faster synchronization so as to enhance synchronizing speed. The system has the high safety performance and wide application.