Lightweight device authentication and shared key negotiation method based on Internet-of-things platform

Abstract

The invention belongs to the technical field of the Internet of things, and discloses a lightweight device authentication and shared key negotiation method based on an Internet-of-things platform. The method includes the following steps: a gateway device side sends a network access request message to a server side, and the server side queries whether there is the gateway device in a database according to a gateway number which can uniquely identify gateway identity information in order to judge the legitimacy of the gateway identity; the server side authenticates the legitimacy of the gateway device, and issues a shared key negotiation request to the gateway device side, and through two encryption and decryption operations, the gateway device side obtains one half of a shared key generated by the server side; after getting the half of the shared key, the gateway device side randomly generates the other half of the shared key, uses a public key of the server side to encrypt the complete shared key, and sends the shared key to the server side; and the server side uses a private key to decrypt cipher text information to get the shared key, and sends the shared key to the network device side to confirm the success of key negotiation. The security of equipment authentication, shared key and data information is ensured.

Description

technical field [0001] The invention belongs to the technical field of the Internet of Things, and in particular relates to a lightweight device authentication and shared key negotiation method based on the Internet of Things platform. Background technique [0002] With the rise of smart hardware, the era of the Internet of Everything (i.e. IOT, Internet of Things) has arrived. Coupled with the recent rapid development of 5G, the network problem between devices has been further solved, and the Internet of Things has entered the accelerated path of rapid development. According to the Gartner report, there will be more than 26 billion IoT devices worldwide by 2020, and how to ensure the secure transmission of IoT device data will become a major concern of people. Although the Internet of Things greatly facilitates people's lives, it also exposes personal privacy, living habits and other information, which has become a breeding ground for criminals. Ensuring the security of eq...

AI Technical Summary

Problems solved by technology

[0003] To sum up, the problems existing in the existing technology are: the security standards of the equipment and data transmission of the Internet of Things lag behind, and the computing power of smart devices is relatively weak, so it is difficult to use the existing complex encryption and decryption to ensure the security of information transmission. There are many manufacturers of networking equipment, and the types of equipment are also different. It is difficult to unify the standards, and it is impossible to achieve security certification.

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