A blockchain-based IoT identity registration and verification method

Abstract

The invention belongs to the field of block chain technology, and discloses a block chain-based Internet of Things identity registration and verification method. In an Internet of Things transaction, the sender reads and inputs its identity information through MAC, completes identity registration, and stores the identity information. enter the identity registration chain; the sender performs a hash operation on the transaction information to generate a hash digest, which is recorded as Y1, and encrypts it with a private key to generate a digital signature; the sender initiates a transaction, and the signature, hash digest Y1 and the corresponding public The key is sent to the whole network; the nodes of the whole network verify the transaction information; all nodes further judge whether the sender has been registered, and if the double verification is passed, the transaction is uploaded to the transaction chain. The present invention can prove that the identity of the trader is correct without disclosing the identity of the trader when conducting transactions on the Internet of Things through the block chain technology, thereby avoiding the leakage of the trader's identity information during the transaction process.

Description

technical field [0001] The invention belongs to the technical field of block chains, and in particular relates to a method for registering and verifying identity of the Internet of Things based on block chains. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] As the third industrial revolution and a new direction for the development of future social interconnection technology, the Internet of Things has brought great changes to people's production and life after the Internet. The development and application of the Internet of Things technology has achieved remarkable results in recent years. A large number of sensors and equipment are connected and combined with the Internet to realize intelligent management and operation. At the same time, as the scale of the Internet of Things continues to expand, the security and privacy issues of the Internet of Things have become one of the threats faced by the I...

AI Technical Summary

Problems solved by technology

First of all, traditional databases are centralized, which is prone to privacy leakage and data loss; second, due to the huge amount of transaction data in the Internet of Things, the transaction information and identity information are stored on the same blockchain, and the transaction speed is greatly restricted

[0008] (3) At present, blockchain-based IoT platforms generally adopt a single identity verification method, which is often not considered comprehensive enough, and it is easy to slip through the net

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