Radio-frequency-fingerprint-based challenge-response authentication protocol method

Abstract

The invention relates to a radio-frequency-fingerprint-based challenge-response authentication protocol method. A challenger communicates with a responder through a wireless medium, and the method comprises the following two stages, namely an initial stage and an operational stage, wherein the initial stage comprises the following steps that: the responder acquires a radio frequency signal of the challenger through the wireless medium and detects a challenger radio frequency fingerprint (RFF) in the signal, and the acquired challenger RFF is stored in a memory; and the operational stage comprises the following steps that: after receiving the radio frequency signal of the challenger and detecting the RFF in the signal, the responder reads the stored challenger RFF in the memory, and compares the RFF which is detected currently with the stored RFF, if the RFF which is detected currently is matched with the stored RFF, a protocol continues operating, and if the RFF which is detected currently is not matched with the stored RFF, the protocol stops operating. By the method, high-strength identity authentication of physical layer information of both communication parties is realized, majority of attacks such as pretending, replay, monitoring and denial of service which are cloned by a communication party can be resisted, and the method is favorable for avoiding the phenomena of secret key leakage and public detection.

Description

[0001] technical field [0002] The invention relates to wireless network communication technology, in particular to a challenge-response authentication protocol method based on radio frequency fingerprints. Background technique [0003] Because wireless networks rely on open air media for communication, there are many security risks and are vulnerable to attacks such as cloning, tampering, eavesdropping, impersonation, denial of service, desynchronization, and retransmission. One of the keys to the solution is to realize the high-intensity authentication of both communication parties. Traditional authentication is implemented based on cryptographic systems and security protocols, that is, the two parties to the communication rely on their own secrets and the information of both parties to conduct challenge and response interactions to verify whether the other party is a predetermined real entity. In recent years, non-cryptographic authentication technology using physic...

AI Technical Summary

Problems solved by technology

However, after many years of operation, it was found to have security flaws

Using a formal method to analyze it, it is found that the authentication protocol has a "man-in-the-middle attack" vulnerability, such as image 3 shown

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