A lightweight joint authentication method base on fingertip impedance and RFID tag physical layer signal

Abstract

The invention discloses a lightweight joint authentication method based on fingertip impedance and RFID tag physical layer signal, which realizes authentication function relying on commercial RFID equipment and protocol. The invention overcomes the instability introduced by the human body impedance in engineering design, theoretically analyzes the influence of the human body impedance and the taginductive coupling on the signal phase and the reading distance (identification range), and improves the restriction of the original single element and the static element from the authentication principle and the mode. At the same time, combining the advantages of traditional equipment certification and biometric certification, a dual-element joint certification mode is proposed, which is simple in implementation, low in cost, high in precision, good in security and easy to be popularized.

Description

technical field [0001] The invention belongs to the technical field of radio frequency identification (RFID) and biological authentication, and in particular relates to a lightweight joint authentication method based on fingertip impedance and RFID tag signal physical layer information. Background technique [0002] With the increasing demand for security, confidentiality, and privacy in various industries and individuals, security authentication technology is particularly important. However, the vast majority of traditional authentication technologies isolate devices and users, that is, to authenticate devices such as access control cards (commonly using RFID technology), or to authenticate users such as fingerprints. Both authentication technologies face their own challenges due to imperfect security mechanisms. There are many potential risks and hidden dangers. For example, device authentication is almost impossible to resist attacks such as counterfeiting, cloning, and ...

AI Technical Summary

Problems solved by technology

However, continuous certification has very high requirements on the acquisition rate and computing power of the equipment, resulting in excessive application costs and difficulties. Currently, it can only be realized in the experimental environment.

[0004] To sum up, existing security authentication technologies have some contradictions and drawbacks in terms of application objects, deployment scope, cost, system complexity, and security defense capabilities.

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