Physical layer authentication method and system, equipment and computer readable storage medium

Abstract

The invention discloses a physical layer authentication method and system, equipment and a computer readable storage medium. The method is applied to wireless terminal equipment. The method comprises the following steps that: identity identifier of the wireless terminal equipment is sent to a wireless access point so as to initiate a network access request; an authentication signal generated by the wireless access point based on a target challenge is received, wherein the target challenge comprises a generated PUF challenge corresponding to the identity identifier; the identity legality of the wireless access node is authenticated based on a self-stored target challenge copy and the authentication signal, if the authentication is passed, a response signal corresponding to the authentication signal is generated based on the target challenge copy; and the response signal is sent to the wireless access point to allow the wireless terminal equipment to access the network after the wireless access point authenticates that the identity of the wireless terminal equipment is legal based on the response signal. According to the method, the PUF is used for physical layer authentication, a shared key in an existing active authentication method is replaced, the security risk of key leakage is avoided, the authentication accuracy is improved, and various active and passive attacks can be effectively resisted.

Description

technical field [0001] The present application relates to the technical field of physical layer security, and more specifically, to a physical layer authentication method, system, device and computer-readable storage medium. Background technique [0002] With the rapid popularization of the Internet of Things technology, the number of wirelessly connected devices is increasing day by day, which brings convenience to people's life and aggravates the security problems of wireless networks. However, the inherent broadcast characteristics of wireless communication make it vulnerable to various malicious attacks. In order to prevent malicious devices from accessing the wireless network, the wireless access point needs to authenticate the device requesting to access the network. Traditional authentication mechanisms based on cryptographic algorithms are deployed on the upper layer of the network protocol stack, so they can only authenticate access devices at the data level, but c...

AI Technical Summary

Problems solved by technology

This kind of method has certain security risks, because the NVM may be compromised to cause the leakage of the shared key, or once the attacker establishes a physical connection with the wireless device, it is easy to steal the shared key in the NVM

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