Author(s)

Gangsong Dong, Xinyan Wang, Hanlei Cheng, Zhiyu Xiang, Dong Li, Boyu Liu

Corresponding Author

Gangsong Dong

Abstract

Blockchain technology has become one of the most important emerging technologies in China's 13th Five-Year Plan period. Its characteristics of decentralization, non-tampering, traceability and high security can effectively solve the problems of traditional cloud audit data in central storage, vulnerability, tampering, incomplete transmission and unsafe data flow. The use of blockchain in cloud audit data can shorten compiling time and improve the quality of audit reports. In this model, a Consortium blockchain is built for different auditors; cloud auditing data can be shared only by users who have identity compliance through the node admission mechanism. Off-chain asynchronous secure storage is used for heterogeneous audit data with different ownership patterns and sensitivity degrees. Secure sharing of dynamic audit data is automatically performed through the consensus strategy and highly programmable smart contracts. Finally, based on blockchain technology, the goal of "simultaneous audit with economic activities" can be realized. The security and effectiveness of cloud audit data processing can be improved.

Keywords

Blockchain, Cloud Audit, Audit Data, Secure Sharing, Distributed Storage, Smart Contract, Privacy Protection