Identity authentication method for IoT devices based on physical unclonable functions

Abstract

The invention relates to an IoT device identity authentication method based on a physical unclonable function. In combination with the property characteristic of the physical unclonable function and zero-knowledge proof contents, the method can be used for identity authentication of multiple devices and users themselves in an IoT network, and belongs to the field of IoT security in information security. In the authentication method, four entities, namely a server, a user, an access device and an accessed device, are included; the authentication method has the main contents as follows: in a registration stage, the server needs to store a response value and a user password for a special challenge in the power form of a discrete logarithmic group generator, so that device registration is carried out; in an authentication stage, the server sends the registered challenge to perform secondary response; at this time, the access device and the device as the whole perform zero-knowledge proof with the user and the server; simultaneously, the access device, the device and the server perform another zero-knowledge proof; and identity authentication of the user, and initial authentication andfinal authentication of the validity of the access device and the device are completed to the server.

Description

technical field [0001] The invention relates to an identity authentication method for an Internet of Things device based on a physically unclonable function, which can be used for identity authentication of multiple devices and users in an Internet of Things network, and belongs to the Internet of Things security field in information security. Background technique [0002] In the era of the convergence of big data and the Internet of Things, the Internet of Things (IoT), as the expansion and extension of the Internet, establishes communication between things. The Internet of Things is a network with "things" as its data source. With the development of various sensing devices and information technologies, the coverage of the Internet of Things is becoming wider and wider. The sensing layer of the Internet of Things contributes more and more information sources and destinations to the entire information network. The amount of data is also expanding, and it is surpassing the I...

AI Technical Summary

Problems solved by technology

[0004] Security issues in the Internet of Things will be more complex than traditional Internet network security

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