Distributed data storage auditing scheme in fog computing environment

With the continuous innovation of wireless communication technology, fog computing-based distributed storage serves as a useful complement to centralized cloud computing and is trending towards large-scale deployment driven. However, for the distributed storage scenario in fog computing, there is currently a lack of effective data auditing methods. This article proposes a distributed data storage auditing scheme in fog computing environment. In our scheme, we first design a distributed storage model based on fog computing. In this model, we use threshold secret sharing technology to divide the outsourced data into multiple blocks and upload them to multiple fog servers to effectively solve the single point of failure and achieve privacy protection. In addition, we have established a fog device audit consensus group based on the verifiable random function (VRF), which ensures the correctness of audit results through consensus among members. In addition, this article proposes a lightweight validator generation algorithm to address the issue of limited resources at the user end. Finally, experimental results show our distributed data storage auditing scheme is efficient and effective.