Design of Internet of Things Information Security Based on Blockchain

With the development of the Internet of Things (IoT), the future world will be an era of interconnection of all things. The traditional IoT has problems with single points of failure and trust, while the IoT system still has some technical challenges in terms of information security. The features of blockchain, such as decentralization, trustless and privacy protection, provide a new way of idea for solving the problem of information security in the IoT. InterPlanetray File System (IPFS) solves the problem of low storage efficiency and high cost for the application of blockchain. Therefore, this paper discusses and designs an IoT information management platform based on blockchain technology.