KR101308103B1 - Apparatus and method for user authentication using the security tag with biometric information - Google Patents

Abstract

PURPOSE: An apparatus for authenticating a user by using a security tag storing biometric information and a method thereof are provided to implement the security tag to which a lenticular film is attached, thereby preventing the illegal forgery and alteration of the security tag. CONSTITUTION: A security tag (110) stores the encrypted biometric information of a user. A photographing unit (211) provides a first image and a second image. The first image is generated by photographing the security tag in a first position according to the authentication request of the user. The second image is generated by photographing the security tag in a second position symmetrical to the first position. A data recovery unit (212) recovers the encrypted biometric information from the images. A personal information input unit (220) scans and reads the real biometric information of the user. A biometric information matching unit (230) determines whether the recovered biometric information is coincident with the real biometric information, and accepts or rejects the authentication request of the user. [Reference numerals] (211) Photographing unit; (212) Data recovery unit; (230) Biometric information matching unit; (300) Papers issuing unit; (400) Alarming unit; (500) Display unit

Description

Apparatus and method for user authentication using the security tag with biometric information}

An embodiment of the present invention relates to an apparatus and method for authenticating a user using a security tag in which biometric information is stored, and accepting personal authentication based on a result of comparing the biometric information of the user encrypted with the biometric information to the real biometric information of the user. It relates to an apparatus and a method.

According to the conventional financial transaction or personal document issuance procedure, the employee checks his / her identity by visually checking the photo and face shown on the identification card such as passport, resident registration card and driver's license. In addition, in the case of an automated teller machine (ATM) or an automated teller machine, it is possible to verify the identity by presenting an identification card or a credit card or inputting only personal information such as a social security number, an account number, a phone number, and an account password. However, such a method of identity verification may cause false identity verification in performing subjective judgment and formal authentication procedures of counter staff, and further increases the possibility of additional crimes using lost or stolen credit cards or ID cards. There is this.

Recently, in order to solve this problem, a technology for verifying the identity of the user by using the electronic tag in which the user's bio information is stored has been developed. There is a problem in that forgery and modulation can be made easily. In addition, the electronic tag is inevitably damaged due to its carrying, and if the electronic tag is damaged, there is still a problem to be solved in that the risk of damage to data stored in the electronic tag is also high.

The problem to be solved by the embodiment of the present invention is to provide a user authentication apparatus and method using a security tag that can be forged and tampered, even if a portion is damaged, to restore the stored data.

In order to solve the above problems, an embodiment of the present invention includes a security tag in which the biometric information of a user is encrypted and a photographing unit that provides an image of photographing the security tag according to an authentication request of the user, and from the image. A tag reading unit including a data restoring unit for restoring the encrypted biometric information, a personal information input unit for scanning and reading real biometric information of the user, and whether the restored biometric information matches the real biometric information According to an embodiment, a user authentication apparatus including a biometric information matching unit for determining or accepting or returning an authentication request of the user is proposed.

In addition, an embodiment of the present invention to solve the above problems, the step of the user requesting the user authentication, the first image and the security tag photographed in the first position of the security tag possessed by the user through a photographing unit Providing a second image photographed at a second position symmetrically with respect to the first position with respect to the first position; generating a target image by combining the first image and the second image through a data restoration unit; Restoring and providing encrypted biometric information from the user; scanning and reading real biometric information of the user through a personal information input unit; and whether the restored biometric information matches the scanned biometric information through a biometric information matching unit The present invention proposes a user authentication method including determining and accepting or rejecting the user's authentication request as an embodiment.

According to an embodiment of the present invention, a personal identification card with a security tag can be used to securely and quickly perform identity verification in financial transactions, personal document issuance, and access control requiring high security. In addition, by implementing a security tag attached to the lenticular film, it is possible to prevent illegal forgery and tampering of the security tag, and when the credit card and ID card with the security tag is lost or stolen, Unavoidable accidents can be prevented.

1 is a schematic configuration of an unmanned document issuing device including a user authentication device according to an embodiment of the present invention.
2 is a block diagram of an unmanned document issuing device including a user authentication device according to an embodiment of the present invention.
3 is a method for photographing a security tag using a tag reader of the user authentication apparatus according to an embodiment of the present invention.
4 is a data restoration method according to an embodiment of the present invention.
5 is a flowchart illustrating a user authentication method according to an embodiment of the present invention.
6 is a fingerprint information matching method according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, one embodiment of the present invention may be implemented in various different forms and is not limited to the embodiments described herein.

Throughout the specification, the terms first, second and third, etc. are used to describe various parts, components, regions, layers and / or sections, but are not limited thereto. These terms are only used to distinguish any moiety, element, region, layer or section from another moiety, moiety, region, layer or section. Thus, a first portion, component, region, layer or section described below may be referred to as a second portion, component, region, layer or section without departing from the scope of the present invention.

Also, as used herein, the meaning of " comprising "embodies certain features, areas, integers, steps, operations, elements and / or components, and does not exclude other features, areas, integers, steps, operations, elements and / It does not exclude existence or addition.

1 is a schematic configuration of an unmanned document issuing device including a user authentication device according to an embodiment of the present invention.

The unmanned document issuing device of FIG. 1 requests the user's personal identification card insertion, reads the security tag attached to the personal identification card, and restores the user's biometric information encrypted and stored in the security tag.

At this time, the personal identification card is proof of identity of the user, a resident registration card indicating that the resident living in a certain place of residence, passport to prove the identity or nationality of a person traveling abroad, can drive a car on the road It may be a driver's license to prove eligibility and a credit card, debit card, check card and cash card to prove that he or she is capable of financial transactions.

Subsequently, when the biometric information of the user is scanned and the two biometric information match according to the comparison result with the restored biometric information, the user's identity authentication is accepted and the user's request document is issued. In this case, the biometric information refers to body-specific information such as a user's face, fingerprint, iris, hand vessel, and vein, and the biometric information is encrypted and stored in a security tag.

Hereinafter, a user authentication method of the unmanned document issuing device according to an embodiment of the present invention will be described in detail.

2 is a block diagram of an unmanned document issuing device including a user authentication device according to an embodiment of the present invention.

The unmanned document issuing device of FIG. 2 includes a personal identification card 100, a user authentication unit 200, a document issuing unit 300, a warning notification unit 400, and a display unit 500.

The personal identification card 100 includes a security tag 110 in the form of a color code in which biometric information of an encrypted user is stored.

The user authentication unit 200 confirms that the user is a person and requests a document issuance and warning alarm, and includes a tag reader 210, a personal information input unit 220, and a biometric information matching unit 230.

The tag reader 210 includes a photographing unit 211 which provides an image of photographing the security tag 110 of the personal identification card, and a data restoring unit 212 which restores the user's biometric information encrypted from the image. Is done.

3 is a method for photographing a security tag using a tag reader of the user authentication apparatus according to an embodiment of the present invention.

In FIG. 3, the security tag 110 is a film layer on which the biometric information of the user is encrypted and printed on a code layer 111 and the code layer, and an optical embossing of a predetermined pattern is formed on one surface thereof. layer 112). In this case, the optical embossing of the film layer 112 may be implemented in one of circular or triangular shapes, and the optical embossing may be implemented in a lenticular or a lenticular sheet having a wavy pattern arranged at regular intervals. In addition, the optical embossing may separate and observe different sets of image pixels in the code layer according to the position where the security tag 110 is viewed, thereby increasing the security of the security tag 110 and expanding the storage range of the information. Can be.

As shown in FIG. 3, the optical embossing reflects the tag image in the first direction and the second direction so as to have a predetermined angle between neighboring embossings. Therefore, the photographing unit 211 obtains the first image from the reflected light generated by irradiating the security tag 110 with a predetermined light at the first position, and irradiates the security tag 110 with the predetermined light at the second position. At least two imaging elements 211-1 and 211-2 are included to capture the second image from the reflected light. In this case, the first position may be a point having a predetermined angle with respect to the vertical direction of the security tag. In addition, the photographing elements 211-1 and 211-2 have positions symmetrically with respect to the security tag 110, and may determine a photographing angle of the camera according to the optical embossing arrangement of the film layer 112. . The imaging elements 211-1 and 211-2 may be implemented by two or more photodetectors such as a charge coupled device (CCD) camera or a vision camera capable of recognizing security tags on both sides. have.

Returning to the description of FIG. 2 again, the data restoring unit 212 (shown in FIG. 2) generates a target image by combining the first image and the second image provided by the photographing unit 211 (shown in FIG. 2). The target image is analyzed to restore encrypted biometric information.

4 is a data restoration method according to an embodiment of the present invention.

As shown in FIG. 4, the data reconstruction unit 212 (shown in FIG. 2) generates one target image by combining the effective pixels of the first image and the effective pixels of the second image. For example, combining the first image corresponding to (N, M) pixel coordinates and the second image corresponding to (N, M) pixel coordinates to (N, M) pixel coordinates of a target image, and (N One target image can be generated by arranging pixel coordinates other than, M) in the same combination.

Thereafter, the pixel coordinates may be read in the target image in a predetermined order, and the encrypted data may be extracted and restored based on the phase and amplitude information of the pixel coordinates.

The personal information input unit 220 scans and reads real biometric information of a user and may be implemented as an image information input device such as an image scanner.

The biometric information matching unit 230 determines whether the biometric information restored by the data restoration unit 212 matches the real biometric information provided by the personal information input unit 220. As a result of the determination, if the restored biometric information matches the real biometric information, the user accepts the authentication request and proceeds with the document issuance request.

When the document issuing unit 300 accepts the user's authentication request through the biometric information matching unit 230, the document issuing unit 300 presents a menu listing the types of documents that can be issued to the user, and the civil documents or various supporting documents selected by the user from the menu. And issuance of confidential documents.

In this case, the document issuing unit 300 may be implemented as a cash withdrawal unit (not shown in FIG. 2) according to a device including a user authentication unit according to an embodiment of the present invention, and through the biometric information matching unit 230. If the user's authentication request is accepted, the user may present a financial transaction menu available to the user and proceed with a transaction selected by the user from the menu.

The warning notification unit 400 rejects the user's authentication request when the biometric information restored through the biometric information matching unit 230 and the real biometric information are not matched, and if the identity authentication request is returned for a predetermined number of times, there is a risk of identity theft. To alert you that you are a user, sound an alarm or report the appearance of a dangerous person to a designated police administration.

The display unit 500 outputs related information so that the user can check the matters requested by the user for document issuance and the document issuance progress, and can be implemented as a monitor, a printer, or a speaker as a specific example.

In addition, although not shown in Figure 2, the unmanned document issuing device according to an embodiment of the present invention for storing and managing the document issuance history for each user and for transmitting the data stored in the database to the relevant organizations or users It may further include a data update unit for modifying and adding the communication unit and the user personal information.

5 is a flowchart illustrating a user authentication method according to an embodiment of the present invention.

First, when the user's identity authentication request is received with the insertion of the personal identification card 100 (shown in FIG. 2) (S10), the security tag attached to the personal identification card through the photographing unit 211 (shown in FIG. 2) ( 110, shown in FIG. 2). The photographing unit 211 (shown in FIG. 2) provides a first image photographing the security tag 110 (shown in FIG. 2) at a first position and a second image photographed at a second position (S20). In this case, the second position refers to a position that is symmetrical to the first position with respect to the security tag 110 (shown in FIG. 2).

Thereafter, a target image is generated by combining the first image and the second image through a data restoration unit 212 (shown in FIG. 2) (S30), and restores and provides encrypted biometric information from the target image (S40). ).

Thereafter, the biometric information of the user is scanned and read through the personal information input unit 220 (shown in FIG. 2) (S50). In this case, the real biometric information scanning step S50 may be performed before the biometric information restoring step S40 or simultaneously with the biometric information restoring step S40.

Finally, the biometric information restored by the data restoration unit 212 (shown in FIG. 2) and the real biometric information provided by the personal information input unit 220 (shown in FIG. 2) through the biometric information matching unit 230 (shown in FIG. 2). Is determined (S60), the biometric information matching method will be described in detail with reference to FIG.

6 is a method of matching biometric information according to an embodiment of the present invention.

6 illustrates a method of matching fingerprint information restored from a security tag 110 (shown in FIG. 2) that stores a user's fingerprint as biometric information with a user's real fingerprint information, and aligns the restored fingerprint with the real fingerprint. The feature points are compared to determine whether fingerprints are matched.

In an embodiment of the present invention, the fingerprint matching method does not limit the feature point comparison method, but various fingerprint matching algorithms may be applied.

Returning to the description of FIG. 5 again, if the matching result of the biometric information is matched with the restored biometric information and the real biometric information, the user's identity authentication request is accepted (S70). If the restored biometric information and the real biometric information do not match, the user may request a user authentication request through a warning notification unit 400 (shown in FIG. 2), and request the user to request a user authentication again. In addition, if a user's request for authentication is rejected more than a certain number of times, an alarm is issued to notify the user that there is a risk of identity theft or report the appearance of dangerous person to a predetermined police administration.

In the above, the user authentication method using the security tag in the unmanned document issuing device has been described, but the present invention is not limited thereto. The fields of automated teller machine (ATM), credit card payment machine, confidential document reading, and access control In user authentication method using a security tag can be applied.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It belongs to the scope of right.

100: personal identification card 110: security tag
200: user authentication unit 210: tag reading unit
211: recording unit 212: data recovery unit
220: personal information input unit 230: biometric information matching unit
300: document issuing unit 400: warning notification unit
500:

Claims (9)

A security tag in which the user's biometric information is encrypted and stored;
A photographing unit which provides a first image photographing the security tag at a first position and a second image photographed at a second position symmetrically with the first position based on the security tag according to an authentication request of the user; A tag reading unit including a data restoring unit restoring and providing the encrypted biometric information from the image;
A personal information input unit which scans and reads real user biometric information; And
The biometric information matching unit accepts or rejects the authentication request of the user by determining whether the restored biometric information matches the real biometric information.
User authentication device comprising a. The method of claim 1,
The biometric information is one or more body-specific information selected from the group consisting of face, fingerprint, iris, hand vessels and veins. The method of claim 1,
The security tag includes:
A code layer in which the biometric information of the user is encrypted and printed;
A film layer laminated on an upper surface of the code layer and having optical embossing of a predetermined pattern formed on one surface thereof.
User authentication device comprising a. delete The method of claim 1,
And the first position is a point having a predetermined angle with respect to the vertical direction of the security tag. The method of claim 1,
And the data reconstruction unit provides a target image combining a valid pixel of the first image and the second image, and restores and provides the biometric information of the encrypted user from the target image. A user requesting identity verification;
Providing a first image of the security tag possessed by the user at a first position through a photographing unit and a second image photographed at a second position symmetrically to the first position based on the security tag;
Generating a target image by combining the first image and the second image through a data restoration unit, and restoring and providing encrypted biometric information from the target image;
Scanning and reading real biometric information of the user through a personal information input unit; And
Accepting or rejecting the user's identity authentication request by determining whether the restored biometric information matches the scanned biometric information through a biometric information matching unit;
User authentication method comprising a. The method of claim 7, wherein
In providing the first image and the second image,
The first position is a point having a predetermined angle with respect to the vertical direction of the security tag. The method of claim 7, wherein
In providing the first image and the second image,
The security tag includes a code layer in which the biometric information of the user is encrypted and printed, and a film layer stacked on an upper surface of the code layer and having an optical embossing of a predetermined pattern formed on one surface thereof.

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