Multi-level chaotic encryption-based mp-wfrft communication method and system

The MP-WFRFT communication method using multi-cascaded chaotic encryption utilizes Logistic and Henon-Sine mappings to construct a chaotic system, performing triple encryption on the signal. This solves the problem of existing chaotic encryption systems being vulnerable to attacks and achieves efficient and secure wireless communication transmission.

CN115225249BActive Publication Date: 2026-02-17AIR FORCE UNIV PLA
2 Cites 0 Cited by

Patent Information

Application Number
CN202210855697.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-07-20
Publication Date
2026-02-17
Estimated Expiration
2042-07-20

AI Technical Summary

Technical Problem

Existing chaotic encryption systems have simple structures, are vulnerable to attacks, and are prone to encryption failure, thus failing to effectively improve the secure transmission performance of the physical layer of wireless communication.

Method used

A multi-parameter weighted fractional Fourier transform (MP-WFRFT) communication method with multi-cascaded chaotic encryption is adopted. A multi-cascaded chaotic system is built using Logistic mapping and Henon-Sine mapping. The signal is triple-encrypted by combining the cryptographic kernel space of bit scrambling matrix and constellation rotation matrix, including bit scrambling, constellation rotation and MP-WFRFT transformation.

Benefits of technology

This increases the structural complexity and key space of the chaotic system, making it more difficult to decipher, effectively preventing brute-force attacks, and enabling secure information transmission without affecting transmission performance.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present disclosure relates to a multi-cascaded chaotic encryption-based MP-WFRFT communication method and system. The method comprises: building a multi-cascaded chaotic system model using Logistic mapping and Henon-Sine mapping, wherein the multi-cascaded chaotic system comprises a cryptographic kernel space having a bit scrambling matrix and a constellation rotation matrix; performing triple encryption processing on an input signal using the cryptographic kernel space of the multi-cascaded chaotic system and MP-WFRFT transformation, generating an encrypted signal, and completing hybrid carrier modulation; receiving the hybrid carrier signal at a receiving end and performing WFRFT inverse transformation on the hybrid carrier signal; generating a decryption matrix according to parameters of the multi-cascaded chaotic system, in combination with MP-WFRFT transformation parameters and a scale vector, and decrypting the encrypted signal using the decryption matrix to complete the demodulation process. The present disclosure improves the wireless communication physical layer security transmission performance through triple encryption processing, and can effectively prevent brute force attacks.
Need to check novelty before this filing date? Find Prior Art