A Secure IoT Data Integrity Auditing Scheme Based on Consortium Blockchain

With the development of IoT, a large amount of valuable data is stored in remote cloud services by enterprises or individuals, which raises concerns about the security of data. In order to ensure the integrity of the data in the cloud, scholars have proposed various auditing scheme, among which Third Party Auditor (TPA) is a distinctive feature of a class of scheme. But the security of a centralized TPA is difficult to ensure, and blockchain technology makes up for this shortcoming. In order to solve this, we propose a secure auditing scheme based on the consortium blockchain. Our scheme owns following feature: anonymity, fairness, accountability, security. The experiment results show that our scheme is efficient.