Design of Network Communication Security Scheme Based on Dynamic Trust Estimation

Nowadays, in complex and ever-changing network environment, network security is faced with numerous challenges. Traditional network security mechanisms can no longer meet the current comprehensive protection requirements. This paper focuses on designing a network communication security scheme based on trust evaluation to enhance the security of the entire network system. In this scheme, first, a requirement analysis is conducted through network communication scenarios. Then, a system architecture is constructed, which includes trust evaluation and management, communication permission management, and data storage. In terms of trust evaluation, carefully select evaluation indicators, use reasonable evaluation methods to construct a trust evaluation model, and establish a dynamic update mechanism. Classify nodes based on trust values, and formulate corresponding trust management strategies and communication permission allocation rules. Meanwhile, design communication security measures covering encrypted communication, access control, and intrusion detection. Finally, experiments are carried out to verify the security and reliability of the network communication security architecture designed in this paper, which reduces the risk of various attacks.