BDDT: use blockchain to facilitate IoT data transactions

With the rapid development of Internet of Things (IoT), more and more devices are connected to IoT, leading to an exponential increase in IoT data. However, two problems stand in the way of the further development of IoT. First, IoT data is uploaded directly to the cloud, and the service provider obtains huge profits by analyzing IoT data. However, users can't get benefits, and they have to bear the risk of privacy leakage. Second, centralized storage limits data sharing, which can slow the development of IoT. To solve these problems, this paper proposes an architecture of Blockchain-based Distributed IoT Data Transaction (BDDT). In our proposed BDDT system, users can get benefits by selling their own data, and the service providers buy users' data to gain access. Furthermore, all operations of IoT data transactions are recorded in blockchain. It ensures the traceability and irreversible modification of data transactions. Final, the experimental results prove that the BDDT system has a good performance and excellent safety.

Automated summary

As IoT grows, data volume increases, while user benefits are compromised and privacy risks rise. The proposed Blockchain-based Distributed IoT Data Transaction architecture allows users to profit from selling data, while recording all transactions to ensure data security.