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Five-dimensional hyper-chaos coupling synchronization system and satellite physical layer encryption transmission method

A synchronous system and ultra-chaotic technology, applied in the field of satellite communication, can solve the problems of increased computational complexity, difficult implementation, long processing time of computing power, etc., and achieve low encryption complexity, easy implementation, and increased key space Effect

Active Publication Date: 2021-11-30
BEIJING UNIV OF POSTS & TELECOMM +1
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Problems solved by technology

However, this method will greatly increase the computational complexity while improving the security level, so it requires high computing power and long processing time, which is not easy to achieve in satellite communications with limited computing power

Method used

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  • Five-dimensional hyper-chaos coupling synchronization system and satellite physical layer encryption transmission method
  • Five-dimensional hyper-chaos coupling synchronization system and satellite physical layer encryption transmission method
  • Five-dimensional hyper-chaos coupling synchronization system and satellite physical layer encryption transmission method

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Embodiment Construction

[0036] In order to better understand the technical solution, the method of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0037] The invention provides a five-dimensional hyperchaotic coupled synchronization system, such as figure 1 As shown, in the coupled synchronization system, because the initial keys of the two parties are different, the generated chaotic sequence values ​​are also different. Then the driving system adjusts the chaotic sequence generated by using the corresponding sequence of the response system as feedback through the coupling item, so as to gradually reach synchronization. Since the initial value keys at both ends of the sending and receiving ends can be two completely different sets of keys, the correct chaotic sequence cannot be obtained only by knowing the key of the sending end or the receiving end, so the eavesdropper needs to know two pairs of initial values ​​at the same time Extremely se...

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Abstract

The invention discloses a five-dimensional hyper-chaos coupling synchronization system and a satellite physical layer encryption transmission method, and generated chaos sequence values are different due to different initial keys of two parties, and then the driving system adjusts the generated chaos sequence by taking the sequence corresponding to the response system as feedback through a coupling item so as to gradually achieve synchronization. According to the chaotic coupling synchronization system using the asymmetric keys, the key space is increased, the safety performance is improved, meanwhile, excessive calculation amount is not increased, and compared with an existing technical scheme, the chaotic coupling synchronization system is easier to implement in satellite communication.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a five-dimensional hyperchaotic coupling synchronization system and a satellite physical layer encrypted transmission method based on the five-dimensional hyperchaotic coupling synchronization system. Background technique [0002] Due to the broadcast characteristics of the satellite communication signal during the propagation process, it is easy to be eavesdropped by a third-party receiver. When the signal is received and eavesdropped by others, it can be used to track communication satellites and interfere with remote control signals. If some key signals are interfered when controlling satellite launch and operation, it is easy to cause the satellite to lose control and paralyze the satellite communication system. With the rapid development of computer computing power, the security of the traditional confidentiality agreement mechanism based on the amount of cal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/00H04L29/06H04B7/185
CPCH04L9/001H04L63/0442H04B7/18519
Inventor 陈远祥鲁帆李嘉豪邓怡珺刘畅马炳张橹程竟爽余建国
Owner BEIJING UNIV OF POSTS & TELECOMM
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