Robust Blockchain for IoT Security

Abstract

Due to the vast, increasing number of devices connected to the internet, their high connectivity, diversity, heterogeneity, and the fact that these devices are incapable of carrying a strong security protocols, a number of security and privacy challenges arise. Thus, the IoT- BlockChain brings a lot of benefits, yet still several challenging issues of security, storage and privacy are being faced. Therefore, this present research work proposes a new architecture with an objective to provide robust security with unlimited storage capability that can be adapted to the IoT resources constraints by introducing the new component Security and Storing Manager (SSM) added to the BlockChain. The concept behind the SSM mechanism is based on both encrypting the main data which will be stored in the locked blocks scattered on the internet and storing only the hash of these data in the BlockChain. Through this process, the SSM achieves a role like burial of the data in an unknown place with an unknown name. Also, the access to the BlockChain is restricted by using the smart contract in the new proposed architecture which allows the BlockChain to manage the data access policy. We evaluated the performance of the proposed architecture using various performance measures. The results of our evaluation show that performance is improved by reducing the size of the BlockChain and achieving the security goals. Consequently, SSM paves the way to make our BlockChain smart.