Internet of Things equipment identity security authentication method based on block chain and fog computing

Abstract

The invention discloses an Internet of Things equipment identity security authentication method based on a block chain and fog computing, and the method specifically comprises the steps that: an equipment manager generates a random key, writes the key into Internet of Things equipment, and transmits the key to a fog node close to the equipment; the fog node encrypts the random key and then sends the encrypted random key to the equipment manager; the equipment manager writes related information of the Internet of Things equipment into the block chain; the fog node queries the block chain through the serial number of the Internet of Things equipment to obtain related information of the Internet of Things equipment; the fog node verifies whether the serial number of the equipment stored in the block chain is the same as the serial number of the equipment itself through an equipment identity security protocol DSCP, the fog node authentication stage is completed, and then the fog node adds a mapping and equipment access validity period for the Internet of Things equipment; after the Internet of Things equipment completes registration and authentication, mutual authentication can be carried out between the equipment. According to the method, the blockchain and fog computing are utilized to help the Internet of Things to ensure the security of the equipment and realize mutual authentication between the equipment.

Description

technical field [0001] The invention belongs to the technical field of cryptography and information security, and relates to a security authentication method for IoT device identity based on blockchain and fog computing. Background technique [0002] In recent years, with the rapid development of physical networking technology, the Internet of Things technology and its innovative applications have brought great convenience to people's lives, making people and equipment, equipment and equipment connected together. Although the concepts and applications of the Internet of Things are no longer new, many security issues and research on the Internet of Things are in their infancy. The Internet of Things world has a huge number of devices, which increases the difficulty of data exchange between things-things and people-things. It also increases the security issues between information collection, transmission and exchange, and is also vulnerable to various attacks:( 1) Most device...

AI Technical Summary

Problems solved by technology

Although the concepts and applications of the Internet of Things are no longer new, many security issues and research on the Internet of Things are still in their infancy

The Internet of Things world has a huge number of devices, which increases the difficulty of data exchange between things-things and people-things. It also increases the security issues between information collection, transmission and exchange, and is also vulnerable to various attacks:( 1) Most devices are wireless, and due to various reasons, they are subject to security issues such as identity deception, message theft, and information tampering

(2) Many types of devices are resource constrained in terms of memory and processing power

However, most of the proposed solutions focus on solving data privacy, trust management, and security protection. Some scholars also study blockchain-based IoT device authentication, but most of them propose a framework or idea that is not suitable for deployment. In most resource-constrained IoT devices

Especially with the rise of fog computing, deploying fog nodes near edge devices can help solve the problem of limited device resources, but it does not consider the authentication between devices. However, there are still many aspects of device identity authentication based on blockchain. Work to be done and places to think

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