A Survey on Encryption Technology for Computer Network Data Security Protection

Data encryption technology has emerged as the mainstay of the defence system in the context of the coexistence of network security threats and digital transformation. In order to address the inherent flaws in key management, anti-attack capability, and computational efficiency of conventional symmetric and asymmetric encryption algorithms, this study suggests a hybrid encryption algorithm model based on the fusion of symmetric encryption techniques with asymmetric encryption methods. It builds an encryption framework that considers cryptographic strength, real-time performance, and cross-platform compatibility in additiorms the single encryption protocol in key space size, attack index, and limit encryption constant value. This validates the hybrid algorithm’s technical advantages in fending off sophisticated threats like man-in-the-middle attacks and brute force cracking, and it offers theoretical support for the development of intelligent network security protection systems.