Study of IoT Security for Blockchain Management: An Application to Data Backup
Cédric Tala Kuate, Franklin Tchakounté, Jean Claude Kamgang · 2023
The Internet of Things (IoT) produces a significant quantity of data daily from different fields (health, agriculture, industrial process, smart home, smart mobility … ). Those data have to be backed up for immediate or future use. Those data that can be used for sensitive or critical applications should not be altered. The problem with the traditional data backup method is that it can be subject to several security attacks and altered data. This work aims to propose a coupling of blockchain technology to data backup in other to guarantee confidentiality, integrity and accessibility of data produced by the IoT. To achieve this, we first investigate the IoT, its architecture, and the security aspects. Secondly, study the use of blockchain for data backup in the IoT. Since data storage on a blockchain is costly depending on the size of the stored data, this article proposes as the main contribution a blockchain-based architecture that uses IPFS to efficiently and securely store data collected by IoT devices. In addition, we implemented a decentralized application that uses smart contracts to store data on the blockchain. We compared the proposed architecture and the classical backup approach based on the criteria of confidentiality, integrity, and accessibility (CIA). It reveals that our approach is more effective than the classical approach.