Data Encryption Algorithm Based on Chaos Sequence in Computer Network Security

Information security is related to personal interests, enterprise survival, social stability, state secrets, etc., and is closely related to my country's economic security, social security and national security. Therefore, research on reliable and secure information transmission encryption technology has important academic and practical value. The purpose of this paper is to study the application of data encryption algorithm in computer network security based on chaotic sequence. The related theoretical knowledge of chaotic image encryption algorithm is studied, including chaotic cryptography and chaotic time series; a data encryption algorithm based on chaotic sequence is designed and applied in image encryption; the realization of the whole image encryption is completed. In addition, the performance of the designed image encryption algorithm is analyzed in various aspects, including the correlation of adjacent pixels and the analysis of security performance. The experimental results show that this paper designs an image encryption algorithm with better performance.