Internet of Things data sharing method and system based on block chain

Abstract

The invention relates to an Internet of Things data sharing method and system based on a block chain. The system comprises a certificate management module, a gateway module and a channel. The method comprises the steps that Internet of Things equipment applies for registration to a CA through a gateway module, and the CA returns a certificate to the gateway module and stores the certificate in a certificate management module in the gateway module; the gateway module receives and processes the data information and sends the data information to the node through the Fabric SDK; the node carries out endorsement and returns the endorsement to the Fabric SDK; the Fabric SDK sends the collected data information to a sorting service according to an endorsement strategy, and the sorting service sorts the data information according to a time sequence, packages the data information into blocks and broadcasts the blocks to nodes in a channel; and after receiving the block, the node verifies the block and writes the block into a local account book. On the premise that a single credible centralization mechanism is not used, the method helps participants to directly establish trust, guarantees that data can be safely shared, improves the value transmission efficiency, and reduces the risk that the data is tampered through a block chain data structure.

Description

technical field [0001] The present invention relates to the field of block chain technology and the field of Internet of Things technology, in particular to a block chain-based Internet of Things data sharing method and system. Background technique [0002] The Internet of Things is a network in which objects are connected to share information through the Internet. With the development of Internet of Things technology, the structure of the network is becoming more and more complex, the amount of collected data is showing explosive growth, and the problem of information islands is becoming more and more prominent. How to safely share data among different participants has become a huge challenge. A typical approach is to introduce a credible centralized institution that is responsible for collecting, transmitting and managing data, but this solution has some significant flaws: [0003] 1. The centralized organization needs to be responsible for equipment management, data stor...

AI Technical Summary

Problems solved by technology

[0003] 1. The centralized organization needs to be responsible for equipment management, data storage and transmission. Once it fails, the entire system will be paralyzed

[0004] 2. The centralized organization is opaque to the participants and has too much power. If it is attacked by the outside, the data may be tampered with

[0005] 3. Data transmission must go through a ce

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