Internet of Things identity authentication method, device and Internet of Things device

By implementing a two-way identity authentication method between IoT devices, using random challenges and interactive information for authentication without server participation, it solves the problem of reduced identity authentication efficiency and security caused by the growth of IoT devices, and achieves efficient and secure identity authentication.

CN115276998BActive Publication Date: 2025-04-01TSINGHUA SHENZHEN INTERNATIONAL GRADUATE SCHOOL
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Patent Information

Application Number
CN202210648141.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-08
Publication Date
2025-04-01
Estimated Expiration
2042-06-08

AI Technical Summary

Technical Problem

In the prior art, with the rapid growth of the number of IoT devices, the burden of server storage and communication increases, resulting in reduced identity authentication efficiency and single point failure and security problems.

Method used

By implementing a two-way identity authentication method between IoT devices, it uses random challenges and interactive information for authentication, without the need for server participation, and only the device information interacting with itself is stored, reducing the computing and communication burden.

Benefits of technology

It improves the efficiency and security of identity authentication between IoT devices, avoiding server burden and single point failure problems.

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Abstract

The present invention provides an Internet of Things identity authentication method, device and Internet of Things device, wherein the method comprises sending a first authentication request message to a second Internet of Things device; the first authentication request message comprises a first random challenge; receiving a first authentication response message sent by the second Internet of Things device; the first authentication response message comprises a second random challenge and first interaction information corresponding to the first random challenge; when determining that the first interaction information is legal, obtaining second interaction information corresponding to the second random challenge; sending a second authentication request message to the second Internet of Things device; the second authentication request message comprises second interaction information; and determining a session key based on the first interaction information and / or the second interaction information. The present invention realizes two-way identity authentication between the first Internet of Things device and the second Internet of Things device without the participation of a server, reduces the computational burden and communication burden of the Internet of Things device, and improves the efficiency and security of identity authentication.
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