Research on Data Security and Management Mechanism Based on Blockchain

With the rapid increase in the number of online users and the inadequacies of digital identity technology, a series of challenges have emerged. Blockchain, with its distributed data storage, consensus mechanisms, and encryption algorithms, offers new solutions to the problems of digital identity management. Consequently, this paper proposes a blockchain-based digital identity management mechanism to address data isolation issues arising from the complexities of identity account management. Additionally, it introduces a data permission management mechanism that combines CP-ABE with blockchain to tackle the limitations of traditional identity authentication technologies regarding user data control. Experimental results demonstrate that the proposed algorithm performs well in terms of latency, throughput, and security.