Office automation system greatly improves the efficiency of handling office affairs, standardizes the business process, improves the management level, and has occupied a critical position in the development of information technology. However, the data security of the office automation system has been a problem that cannot be ignored. To address the problem of secure storage and access to office data, this paper proposes a secure sharing scheme for office data using blockchain technology and attribute-based encryption technology. First, we construct a decentralized data-sharing system using blockchain, which grants data access transparency and traceability and effectively prevents the risk of tampering attacks on access policies and records. In addition, our scheme utilizes attribute-based encryption to achieve fine-grained access control to office data, and we optimize the traditional attribute encryption scheme to make the size of the system's public parameters smaller and improve the efficiency of the algorithms. These optimizations enable our proposed scheme to effectively meet the needs of the large number and complexity of users in office systems. Finally, performance analysis and security analysis indicate that the scheme has good efficiency and practicality.
关键词
办公数据安全/区块链/属性加密/访问控制
Key words
office data security/blockchain/attribute-based encryption/access control
维普
万方数据