Computer Data Encryption System Based on Nonlinear Partial Differential Equations

Abstract

Data encryption is to convert plaintext data into ciphertext through a data encryption algorithm and then transmit the ciphertext. After the recipient receives the ciphertext, the ciphertext is restored to plaintext, which provides protection and technical support for information security. The main purpose of this article is to design a computer data encryption system based on nonlinear partial differential equations. This paper uses the DES encryption algorithm to encrypt data and implements an onion encryption system that encrypts the outer layer of the database and tests and analyzes the encryption efficiency and additional overhead of the database encryption system on a general database to verify the design application prospects of ideas. In addition, the overall scheme of the encryption system, the hardware, and software of the system are designed in detail, the system is debugged, the overall test is tested, and the data encryption and decryption are effective and feasible. The experimental results of this paper show that after the construction of a computer data encryption system based on nonlinear partial differential equations, the overall security of the data is increased by 25%. In addition, after comparison, the security performance of the onion-type data encryption system is higher than that of the MySQL-type data. The performance of the encryption system is 21% lower. It has certain practical value and significance to apply it to the computer data encryption system.