Design of a Confidentiality Intelligent Interaction System Based on SM2, SM3 and SM4 Algorithm

This article elaborates on the design and development of a secure intelligence interaction system on the basis of encryption algorithms SM2, SM3 and SM4. The backend of the system is designed using Java programming language combined with MySQL database management system for backend program and data storage. In terms of security performance, the SM4 symmetric encryption algorithm is used to encrypt information, the SM3 algorithm generates a ciphertext message digest to ensure data integrity, and finally, the digest is digitally signed using the SM2 algorithm to provide identity verification and non repudiation, thereby ensuring the security and confidentiality of data transmission in the interactive system. After detailed testing, the design has achieved the predetermined design goals and safety standards.