Design of Distributed Information Security Protection System Based on Blockchain

With the rapid development of information technology, information security issues are becoming increasingly serious. The traditional information security protection system faces many challenges due to its centralized and vulnerable characteristics. The decentralized distributed technology of blockchain, with its security attributes such as immutability, openness, transparency, and anonymity, has opened up new avenues for addressing information security issues. This article is based on blockchain technology and designs a distributed information security protection system, with the goal of utilizing the multiple advantages of blockchain to enhance information security protection capabilities. This system covers multiple aspects such as encrypted data and tamper proof storage, distributed identity authentication and access control, audit tracking and event recording. We analyzed the application of this system in data storage, smart contract execution, and multi-party data exchange, and confirmed its effectiveness and practicality in practical applications.