Novel Data Protection for Bounded-Error IoT with Blockchain Smart Contract

Due to the rapid development of IoT systems and applications, a large amount of sensors' data has been generated. Processing and analyzing these data provide users with better applications in diversity. However, current wireless sensing nodes still have a significant issue of power consumption. As the application requirements usually have bounded-error tolerance in IoT systems, our previous research proposed bounded-error data compression to extend the lifetime of IoT system. Meanwhile, the IoT data storing and sharing often rely on the third party service providers. It created another issues of data privacy. To solve these problems, this paper proposes a bounded-error IoT (BIoT) data privacy protection scheme via blockchain smart contract to provide secure data storing and sharing. BIoT not only extends the lifetime of IoT systems, but also provides different levels of service quality in privacy protection according to the agreement of the rights and payment in smart contract. Experimental results demonstrate that BIoT can prolong the IoT system lifetime with data privacy protection.