A blockchain-based lightweight Internet of Things terminal system and its control method

Abstract

The present invention relates to a lightweight Internet of Things terminal system and its control method based on block chain. By setting several block chain nodes, each block chain node adds at least one Internet of Things terminal node, and any Internet of Things terminal For security events, the corresponding IoT terminal node sends security event data to the corresponding blockchain node, and the blockchain node receives and updates the distributed ledger. Two-two information exchanges between blockchain nodes, and security policies are sent to the IoT terminal node . The present invention combines the characteristics of small storage space and weak computing power of lightweight Internet of Things terminals, and utilizes Internet of Things terminal nodes and blockchain nodes to form two-level management. The security strategy of the blockchain nodes, while receiving the threat intelligence of the IoT terminal nodes under the jurisdiction of the blockchain nodes, exchange threat intelligence through the blockchain technology, so that the blockchain technology can be fully applied in the IoT security scenario.

Description

technical field [0001] The present invention relates to the transmission of digital information, such as the technical field of telegraph communication, in particular to a lightweight Internet of Things terminal system based on blockchain and its control method. Background technique [0002] With the rapid rise of IoT technology, IoT applications emerge in endlessly. The working process of the traditional IoT security solution is that IoT terminals collect local security events and report them to the central management node. The central management node conducts overall analysis of all intelligence, and after discovering new threats, it issues new threats to all nodes. security strategy. [0003] For an IoT system, terminal security itself is a very important link. Traditional IoT security solutions cannot guarantee real-time sharing of threat intelligence. More and more organizations have begun to use blockchain technology to discover Threats, for example, each terminal sh...

AI Technical Summary

Problems solved by technology

[0004] However, although the existing solutions use blockchain technology, they cannot be completed for lightweight IoT terminals. Lightweight IoT devices cannot support the storage space and computing power requirements of blockchain distributed ledgers. Therefore, it is impossible to store threat intelligence of the entire network, and it is also impossible to update and calculate frequent threat intelligence. It is difficult to implement blockchain technology on these terminals.

Images