A lightweight joint authentication method based 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 signals, and realizes the authentication function relying on commercial RFID equipment and protocols. The present invention overcomes the instability introduced by human body impedance from the engineering design, theoretically analyzes the influence of human body impedance and tag inductive coupling on signal phase and reading distance (recognition range), and improves the original single authentication principle and method. Constraints of elements and static elements. At the same time, fully integrating the characteristics and advantages of traditional equipment authentication and biometric authentication, a two-factor joint authentication model is proposed. This system is simple to implement, low in cost, high in accuracy, and good in security, and is easier to popularize.

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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