Research on Data Access Management Based on Blockchain Engine

• Published in: 2022 International Conference on Big Data, Information and Computer Network (BDICN) pp. 465 - 468
• Main Authors: Jia, Chenlu, Geng, Yue, Sun, Shuo
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-01-2022
• Subjects: Access control; Access rights; Blockchain; Blockchains; Cloud computing; Codes; data access; Data engine; data management; Data privacy; Indexes; Smart contracts
• DOI: 10.1109/BDICN55575.2022.00091

With the popularity of cloud computing, cloud storage, as a part of cloud computing services, has also attracted extensive attention because of its flexibility and low-cost economic expenditure. On the basis of searchable access, this paper combines blockchain with searchable access, and proposes a dynamic verifiable ciphertext retrieval scheme based on blockchain. This scheme is mainly applied to the private cloud environment that needs to ensure the absolute security of data, such as the database of confidential institutions. Through the characteristics of Ethereum account, authorized access control in one to many environment can be realized. Relying on the characteristics of Ethereum, it solves the problem of the correctness of the results returned by the malicious server. And aiming at the problem that the ECS does not update data, this scheme innovatively solves the verification of the returned results during data update by introducing the aggregated message authentication code technology. The scheme also supports forward and backward security to ensure that no privacy will be disclosed during data update. At the same time, experimental tests are carried out on the three aspects of index generation, retrieval and verification. The test results show that the scheme has high efficiency.