TW202230218A - Decentralized liveness authentication system on a contactfree smart card - Google Patents

Abstract

This invention proposes a decentralized authentication system on a contactfree smart card. The contactfree smart card comprises an authorization code of the decentralized authentication system and a facial dynamical recognition feature. The decentralized authentication system uses a reader to authenticate a testing authenticated code, and to randomly retrieve and authenticate a testing facial dynamical recognition feature to have the ability of liveness authentication. The invention obviously enhances the authentication quality, information system security and personal data protection of the authentication system.

Description

Decentralized non-contact smart card living verification system

The invention relates to a contactless smart card and an authentication system, in particular to a decentralized contactless smart card verification system.

It is often used in verification systems such as financial cards and access control. The verification data is stored in the server, and the verification operation is also completed on the server. It means that the verification code is stored on the card, the card reader reads the verification code, and transmits it to the server through the network, and the server checks the verification code or performs the verification operation to complete the authentication. This verification mode recognizes the card but does not recognize the person, which leads to the problem of verification fraud.

In order to avoid verification fraud, in recent years, the development of verification systems has strengthened biometric verification, such as fingerprint, face or eye print verification, import verification code and biometric verification and other dual functions. In this verification method, the personal biometric data is stored on the server, and the user reads the verification code through a card reader and obtains the user's biometrics from a camera or fingerprint machine, and then transmits it to the server for verification operations. This verification method strengthens the verification strength, but the parties can only rely on the morality of the verification terminal to protect personal information, and cannot prevent the situation of the anti-counterfeiting verification system. For example, it is not easy for a person to prevent a phishing site (a fake authentication system).

The present invention proposes a verification framework and simultaneously solves the problems of personal information protection, verification fraud and information security.

In order to solve the above problems, the present invention provides a contactless smart card. The contactless smart card stores a system authorization parameter and a facial dynamic feature data.

In order to solve the above problems, the present invention provides a non-contact smart card making machine. The non-contact smart card uses the fingerprint of the card making machine to store the system authorization parameters, the lens unit acquires the face image of the cardholder, and the capture operation unit captures the facial features and combines the facial features and the system authorization parameters to form a verification data; and the burning unit burns the verification data to the contactless smart card.

The steps of capturing facial features include instructing the cardholder to complete various head movements and/or facial expressions; acquiring facial motion images; and capturing facial and facial features from different angles to form facial dynamic features.

To solve the above problems, the present invention provides a contactless smart card reader. The contactless smart card reader uses the lens unit to obtain the face image of the user to be verified; the fingerprint of the card reader stores the authentication parameters of the pending verification system; the reading unit reads the verification data of the contactless smart card; and the verification operation The unit verifying the system to be tested verifies system parameters and verifies the facial image to be tested.

The step of verifying the authentication data of the system to be verified includes checking the authentication parameters of the system to be verified and the authentication parameters of the system.

The step of verifying the face image to be inspected includes capturing facial and/or expression features of the face image to be inspected at different angles and checking the image quality to verify the living body feature and form a face feature to be inspected, and checking the face to be inspected facial features and the different angle facial features.

100: Facial Image

110: Facial Image

200: Card making machine

210: Lens Unit

220: Card making machine fingerprint

230: Capture operation unit

240: Burning unit

300: Smart Card

400: Card reader

410: Lens Unit

420: Card reader fingerprint

430: Verify operation unit

440: read unit

FIG. 1 shows an embodiment of the card making machine of the contactless smart card verification system

FIG. 2 shows an embodiment of the card reader of the contactless smart card verification system

The following embodiments, together with the drawings, are used to illustrate the spirit of the present invention, so that those skilled in the art can clearly understand the technology of the present invention, but are not intended to limit the scope of the present invention, and the scope of the patent right of the present invention should be determined by the claims define. It is especially emphasized that the drawings are for illustration purposes only, and do not represent the actual size or number of components, and some details may not be completely drawn for the sake of simplicity in the drawings.

The present invention provides a decentralized living body detection face recognition authentication system.

The present invention proposes a non-centralized verification system architecture. Use the smart card to store the system authorization parameters and personal biodynamic characteristics data; the system authorization parameters of the smart card are used to ensure that the verification equipment, such as the card reader can certify that the card making machine is issued by a qualified supplier, and the card making machine is issued by a qualified supplier. The issued smart card can only be read by a qualified card reader supplier; the biometric data is to store personal biodynamic characteristics, which can avoid verification fraud, such as photo and fingerprint copying.

Verification of personal biodynamic characteristics data realizes the function of in vivo verification, and improves the quality of verification reliability. There are many ways to verify liveness, such as eye movements, gestures, facial dynamic changes, etc. The present invention captures the dynamic features of the user's face by randomly capturing personal head or facial expression changes. The verification method calculates the similarity between the data to be verified and the verification data of the smart card, and the verification strength can be adjusted through the threshold value of the similarity.

The card reader has a lens unit, a facial dynamic capture unit and a verification operation unit. The lens unit is used to acquire the data of the user's face, the facial dynamic capture unit is used to capture the facial dynamic features, and the verification operation unit is used to complete the verification operation. It is particularly emphasized that the verification arithmetic unit of the present invention can be used to verify the verification system parameters and facial dynamic features. Verification of facial dynamic features by the camera lens of the card reader The unit randomly captures the features of different angles of the face with head movement and/or expression changes and the features of the facial images with expression changes, and is used to check the data stored in the smart card, so it has the function of living body verification.

The card making machine has a lens unit, a facial dynamic capture unit and a burning unit. The lens unit is used to capture facial data, the facial dynamic capture unit is used to capture the facial movement and/or expression change characteristics of different angles when the head movement and/or expression changes, and the programming unit is used to The fingerprint and facial feature data of the card machine are burned into the smart card. The facial dynamic capture unit of the card making machine does not have random characteristics, and the cardholder must complete all specific head movements, which is different from the facial dynamic capture unit of the card reader.

The present invention stores the biometric features of the cardholder in the smart card, and then verifies the biometric data prior to the authorization parameters of the system to strengthen the protection of personal data; the in vivo verification function of random facial dynamic feature verification enhances the verification quality; the first verification system The legality of the personal biometric data is re-verified, and there is no need to transmit the verification data over the network, which improves the information security of the verification system. Therefore, the present invention can greatly improve the three objectives of "verification quality", "information security" and "personal information protection".

The verification data of the present invention is stored in the client, and the verification operation is decentralized (ie, the user terminal completes the verification operation instead of the cloud server), and the verification information system architecture of the edge computing architecture is first proposed.

The smart card of the present invention is an intermediate frequency (13.56MHz) non-contact smart card (Contactfree Smart Card) using a passive tag (Passive Tag.); a lens unit is added to the card reader and card making machine of the verification system; General image sensor (CCD, CMOS).

The features of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of a card making machine system for a contactless smart card. The card maker 200 includes a lens unit 210 , a card maker fingerprint 220 , a facial dynamic capture unit 230 and a burning unit 240 . The lens unit 210 is used for acquiring the face image 100 of the cardholder; the card making machine fingerprint 220 stores the system verification parameters set by the verification system supplier; Do not The facial dynamic features of the face image 100 at the same angle, and the facial dynamic features combined with the system authorization parameters constitute verification data;

The lens unit 210 can be a two-dimensional image capturing lens of a common image sensor (CCD, CMOS), and no special lens or dual lens is required.

The facial dynamic capture unit 230 needs to capture facial dynamic features from different angles when different head movements or expressions change.

The burning unit 240 can be any common burning method at present. In practice, the present invention generally uses a near-field induction programming method to prevent others from intercepting the verification data.

FIG. 2 shows an embodiment of a contactless smart card reader. The card reader 400 includes a lens unit 410 , a card reader fingerprint 420 , a verification operation unit 430 and a reading unit 440 . The lens unit 410 is used to capture the face image 110 of the cardholder, the card reader fingerprint 420 is used to store the system authorization parameters set by the verification system provider, the verification operation unit 430 is used to perform the biometric verification operation, and the reading unit 440 is used for to read the verification data on the contactless smart card 300 .

The lens unit 410 of the card reader and the lens unit 210 of the card making machine can be the same or different, and the same verification data can be captured by the verification operation unit 430 .

The system of the card reader fingerprint 420 and the card maker fingerprint 220 is subject to positive parameters to provide a verification mechanism customized by the verification system supplier. If the card reader fingerprint 420 and the card maker fingerprint 220 conform to this verification, it means that the card reader fingerprint 420 and the card maker fingerprint 220 are confirmed to be manufactured by the supplier or an authorized supplier, and can even uniquely identify the card for reading. machine and card making machine.

The living body verification operation of the verification operation unit 430 includes two types of verification. The first system parameter verification is to check the card reader fingerprint 420 and the system parameters in the verification data to ensure that the smart card is manufactured by a certified card making machine. The second is random face dynamic verification. The head movement of the user is randomly acquired by the lens unit 410 And or facial dynamic images 110 from different angles when the expression changes, the data is transmitted to the verification computing unit 430 to capture specific facial dynamic features, and the specific facial dynamic features and the facial dynamic features in the verification data are checked to achieve a living body. Verification function.

The reading unit 440 can be any current card reading technology, such as using NFC technology or RFID technology. In practice, the present invention adopts the approach induction technology to avoid remote interception of verification data.

Obviously, the present invention utilizes system parameter verification (namely, card making machine fingerprint and card reader fingerprint verification) to improve the identification of system suppliers and strengthen information security; and utilizes random facial dynamic feature verification to achieve the function of living body verification and improve verification quality. ; And, use smart cards to store verification data, and the parties keep their personal data to improve the protection of personal data.

It should be specifically stated here that the present invention proposes a verification system architecture that takes into account "identity verification quality", "information security" and "personal information protection", but does not mean that the verification system needs to have three verification features at the same time. Some embodiments may only implement two functions of liveness verification and personal information protection, while other implementations implement personal information protection and system verification.

110: Facial Image

300: Smart Card

400: Card reader

410: Lens Unit

420: Card reader fingerprint

430: Verify operation unit

440: read unit

Claims (8)

A contactless smart card includes a system authorization parameter and a living body dynamic characteristic data, wherein the system authorization parameter is used to verify a verification device, and the living body dynamic characteristic data provides the verification device to verify that a cardholder has Dynamic characteristics of the living body. The contactless smart card of claim 1, wherein the living body dynamic feature data is a facial dynamic feature. A decentralized verification system that includes: a contactless smart card with a living dynamic feature; and a verification device for reading the dynamic characteristics of the living body of the contactless smart card, capturing a dynamic characteristic of the living body of a cardholder to be tested, and verifying that the dynamic characteristics of the living body to be tested of the cardholder have the dynamic characteristics of the living body One of the features is similarity. For the decentralized verification system of claim 3, the similarity has a controllable threshold, and by adjusting the controllable threshold, the verification strength can be adjusted. A contactless smart card reader comprising: a lens unit for randomly acquiring a dynamic image of a user's face to be tested; a card reader fingerprint, used to store the authorization parameters of a system to be verified; a reading unit for reading a verification data of a contactless smart card, wherein the verification data includes a system authorization parameter and a facial dynamic feature; and a verification operation unit for extracting a dynamic feature of the face to be verified from the dynamic image of the face to be verified, comparing the verification parameters of the system to be verified with the verification parameters of the system, and comparing the dynamic characteristics of the face to be verified features and dynamic features of the face. The contactless smart card reader of claim 5, wherein the reading unit is a near-field induction reading module. A contactless smart card making machine, comprising; a lens unit for acquiring a dynamic image of a face of a cardholder; A card making machine fingerprint, used to store a system authorization parameter; an extracting computing unit for extracting a facial dynamic feature, and combining the facial dynamic feature and the system authentication parameter into a verification data; and a programming unit for programming the verification data to a contactless smart card. The contactless smart card making machine of claim 7, wherein the programming unit is a near-field induction programming module.

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