Internet of Things multi-source cross composite authentication method based on block chain

Abstract

The invention discloses an Internet of Things multi-source cross composite authentication method based on a block chain, and belongs to the technical field of gateway security authentication. The method comprises the following steps: object initialization: initializing each equipment object and generating a private key / public key pair; a bubble creating step: the main server sends a bubble request; the block chain checks the uniqueness of the bubble request and the transaction is valid to create a bubble; the bubble is composed of a master controller and a follower. A follower association step: the blockchain verifies that the device object following relationship is unique and effective according to the smart contract, and associates the follower with the bubble. An access control step: carrying out access control on the equipment object and the transaction by the block chain, and carrying out control that the same bubble cannot be created, allowing the equipment object in the same bubble to exchange data, and not allowing the equipment object between different bubbles to exchange data. Reliable identification and authentication of equipment are ensured, and the integrity and availability of data are protected. The method is suitable for most Internet of Things scenes, and easy integration of new equipment, services and use cases is ensured.

Description

technical field [0001] The invention relates to the technical field of Internet of Things security authentication, in particular to a block chain-based multi-source cross-composite authentication method for the Internet of Things. Background technique [0002] The Internet of Things (IOT) touches almost all areas of our daily life and is widely adopted in various fields such as medical care, military, agriculture, and smart cities. But the Internet of Things is extremely vulnerable, and security issues are a major obstacle to the mass adoption and deployment of the Internet of Things. Therefore, it becomes even more important to ensure that only authenticated and authorized users can access the massive amounts of data generated by a large number of devices. [0003] However, due to the limitations and heterogeneity of device resources, existing security solutions are not fully adapted to the IoT ecosystem. Existing technologies have the following problems: (1) usually requ...

AI Technical Summary

Problems solved by technology

[0003] However, due to the limitations and heterogeneity of device resources, existing security solutions are not fully adapted to the IoT ecosystem

Existing technologies have the following problems: (1) usually require a security solution composed of multiple security technologies and solutions, which requires extremely high cost; (2) effective security solutions are usually centralized, such as public key infrastructure (PKI), which can cause huge scalability issues in environments consisting of thousands of nodes; (3) each use case applies different security solutions, architectures and deployments, and integration of new services and solutions During the process, it is easy to cause confusion

The invention application uses the Internet of Things management center for data encryption, data permanence and security cannot be guaranteed, and the problems of scalability and confusion caused by the above-mentioned multiple nodes cannot be solved

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