A Physical Layer Encryption Method Introducing Latin Matrix

Abstract

The invention relates to a physical layer encryption method that introduces a Latin matrix. Use the chaotic system and Latin matrix to generate a key with good performance, and then use the key to scramble the constellation diagram to make the distribution of constellation points of different modulation methods on the complex plane tend to be uniform, and then the individual characteristic parameters of different modulation methods will tend to be uniform. In the same way, the purpose of protecting the modulation method and modulation information from the physical layer is achieved. Make full use of the mapped complex plane information to greatly expand the key space. By introducing the Extract function, the correlation between chaotic sequences is fully eliminated, and the key space is ensured without generating a large number of keys, which greatly reduces the complexity of hardware implementation and performs NIST randomness testing on the generated keys. , verify its unpredictability.

Description

technical field [0001] The invention relates to a physical layer encryption method, in particular to a physical layer encryption method based on Latin matrix and amplitude-to-phase transformation. Background technique [0002] With the increasing degree of informatization in today's society, traditional business activities, transaction processing, and government services have been increasingly implemented and provided through open computer and communication networks, especially tools based on the World Wide Web. Information security It has become an important guarantee condition for people to survive and develop in the information space. From the perspective of security, the main characteristics of information security include confidentiality, integrity, authentication and non-repudiation. At this stage, ensuring information security based on cryptography is still the main security strategy. But in the communication network, the upper layer encryption mechanism based on tr...

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Problems solved by technology

However, this physical layer security technology based on information theory relies on channel information, and security cannot be guaranteed when the eavesdropper and legitimate party have similar channels.

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