KR100402397B1 - method for manufacturing the security card using a hologram and system for authentication of the security card - Google Patents

Abstract

By using a holography technique, a card that records personal biometric information and personal information at the same time is produced, and an authentication signal is generated by comparing the biometric information with the biometric information present on the card. Disclosed are a method of manufacturing a security card using a hologram which simultaneously applies a sex and does not require an additional database for storing information for personal authentication, and an authentication system for the security card. Security card according to the present invention comprises the steps of distinguishing the biometric and personal information through different header information and encoding the digital data through a digital encoder; Converting the encoded digital data into a two-dimensional array of N × N through a spatial optical modulator, and inputting the converted data into a recording medium through a signal beam passing through a Fourier transform lens to store information; When digital information is recorded on the recording medium by the signal beam, the reference beam passing through the phase pattern of the M × M array is simultaneously incident on the recording medium to store the encrypted hologram in the recording medium by interference of the signal beam and the reference beam. step; And attaching the recording medium storing the encrypted hologram to a predetermined position of the personal card according to the standard.

Description

Method for manufacturing the security card using a hologram and system for authentication of the security card}

The present invention relates to a method of manufacturing a security card using a hologram and an authentication system of the security card, and in particular, to produce a card simultaneously recording personal biometric information and personal information using a holographic technique, and present in the biometric information and the card of the user. Manufacture of security card using hologram by generating authentication signal through comparison of biometric information, applying information security of hologram and biometric information at the same time and not requiring additional database for storing personal authentication information A method and an authentication system for this security card.

In general, with the rapid development of the information society, interest in technology for effective management of personal information is rapidly increasing, and researches for personal information protection are being actively conducted. In addition, smart cards for transportation, medical care, internet shopping, and access control systems are rapidly developing, and a system for providing integrated services through one personal smart card is expected to emerge in the future.

The construction of such a system requires a certain security of an authentication system for an individual. Currently, user authentication technologies include an optical correlator, a biometric information, and an encryption algorithm. The use of dual optical correlators provides powerful functions in terms of information protection, but due to the hardware arrangement in which the optical elements are constructed in free space, the mechanical stability is very weak, and a large database for recording information about the user is provided. in need. The use of inherent biometric information, such as fingerprints and eye irises, is one of the most commonly used methods and is recognized as one of the most reliable methods. However, a memory is required in the device to store data about biometric information, and a large database is required to display information about a user after authentication. The method using the encryption algorithm is relatively inferior to the above two methods.

Therefore, there is an urgent need for a personal information protection system that is resistant to damage with high accuracy, cannot be used by others in theft, and cannot be forged.

In addition, in the case of the currently used smart card is used a method for using the algorithm for the protection of personal information, the degree of information security ability is considerably inferior, there is a problem that the information storage capacity for the individual is less.

The present invention has been invented to solve the above problems, by multiplexing and recording the two-dimensional array of digital data using the hologram technique, the information storage ability can be significantly improved, information security is biometric information and optical encryption By combining the security of the hologram itself with the security card that can maximize the security capabilities and the system that satisfies the need for accurate user authentication at the same time, the function of credit card, ID card, traffic card, medical card, etc. A first object of the present invention is to provide a method of manufacturing a security card that enables the application to an integrated card that can be performed at the same time or can perform various card functions.

In addition, a second object of the present invention is to provide an authentication system for the above-described security card.

1 is a system diagram for showing the overall information flow of the present invention.

2 is a system diagram for explaining a method of manufacturing a security card according to the present invention.

3 is a system diagram for explaining an authentication system for a security card according to the present invention.

4 is a diagram illustrating an embodiment of encryption according to a phase pattern of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: reader 110: optical system

120: digital information reader 130: camera

140: program for feature extraction 160: correlation device between information

210: biological information 220: personal information

230: digital encoder 240: SLM

250: Fourier transform lens 260: recording medium

270 reference beam 280 phase pattern

290: signal beam 310: hologram reading unit

320: user authentication processing unit 340: user information display unit

350: external biometric information reading unit

The present invention for achieving the first object

Dividing the biometric and personal information through different header information and encoding the biometric and personal information into digital data through a digital encoder;

Converting the encoded digital data into a two-dimensional array of N × N through a spatial optical modulator, and inputting the converted data into a recording medium through a signal beam passing through a Fourier transform lens to store information;

When digital information is recorded on the recording medium by the signal beam, the reference beam passing through the phase pattern of the M × M array is simultaneously incident on the recording medium to store the encrypted hologram in the recording medium by interference of the signal beam and the reference beam. step; And,

It provides a security card using a hologram comprising the step of attaching a recording medium in which the encrypted hologram is stored to a predetermined position of the personal card according to the standard.

In addition, the present invention for achieving the second object,

In the authentication system of the security card using a hologram recorded biometric information and personal information at the same time,

The beam output from the laser diode passes through the lens under the same conditions as the recording of the security card, passes through the same phase pattern used for recording the security card, and then enters the hologram mounted on the security card, and then records the recorded data on the hologram. A hologram reader for detecting digital data through the CCD array and transmitting the detected data through the CCD driver;

A digital signal decoder for restoring the signal detected by the CCD array transmitted through the CCD driver to the original signal, transmitting the biometric information stored in the hologram, and receiving the authentication result according to the biometric information;

Based on the correlation values received from the user authentication processing correlator and the authentication processing correlator for performing correlation between the biometric information transmitted through the digital signal decoder and the biometric information input from the external biometric information reader, and transmitting the result. A user authentication processor configured as a user authentication signal generator for transmitting the authentication result to the digital signal decoder; And,

The present invention provides an authentication system for a security card including a user authentication signal generator for performing operations such as decoding and displaying information about a user and generating an alarm sound based on an authentication signal received from a digital signal decoder.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Attached Figure 1 is a system diagram for showing the overall information flow of the present invention, Figure 2 is a system diagram for explaining the manufacturing method of the security card according to the present invention, Figure 3 is the authentication of the security card according to the present invention It is a system diagram for demonstrating a system. 4 is a diagram illustrating an embodiment of encryption according to a phase pattern of the present invention.

The present invention simultaneously records digitized personal information and biometric information about an individual using a hologram on a personal card, performs user authentication through matching with biometric information input externally at the time of authentication, and at the time of authorization of authentication. It is a personal security card system that can restore personal information only.

The security card and authentication system according to the present invention, as shown in Figure 1, based on operating the system after authentication based on the reader 100, the optical information acquisition unit 110 and the holographic digital information reading unit ( 120). First, an individual possessing a holographic security card (not shown) manufactured by the reporting method described below inserts the holographic security card into the reader 100 and then prints the fingerprint of the individual in the biometric information acquisition unit 110. Or the iris light. The biological information acquisition optical system 110 acquires biometric information for personal authentication by an optical method and transmits the biometric information to the camera 130. The biometric information of the individual obtained through the optical system 110 is converted into a signal readable by the camera 130, and the feature is extracted from the biometric information of the individual by a specific algorithm of the feature extraction program 140.

The hologram digital information reading unit 120 reads the biometric information from the digital information of the individual stored by the hologram, that is, the photo, the name, the social security number, and the biometric information, from the inserted hologram security card. It is input to (160).

The information correlator 160 obtains a correlation value by comparing the biometric information of the individual read from the hologram security card with the biometric information obtained through the camera 130, and determines whether to be authenticated, and then again checks the holographic digital information reader ( Inform 120 whether or not to authenticate. As a result of the determination between the information correlator 160, the information correlator 160 rejects the authentication when the biometric information of the individual read from the hologram security card and the biometric information obtained through the camera 130 do not match. The digital information reader 120 transmits a stop signal to prevent the user's personal information such as photographs, addresses, and social security numbers from being read, and the information correlator 160 is configured to display the biometric information of the individual read from the holographic security card and the camera ( If the biometric information obtained through 130 is identical, a signal for reading user information such as a photo, an address, and a social security number is transmitted through the hologram digital information reader 120 to read the user personal information and then decode the digital signal ( And permits the display and use of personal information.

In the authentication system according to the present invention, since the information recording method is based on 3D holography, even if the recorded information is exposed to the outside and copied, it is difficult to read and maintain high security.

In addition, the phase pattern is given to each individual during hologram recording, so that the original signal cannot be restored when the same phase pattern does not exist at the time of recording, thereby enhancing security. In addition, if the card is lost, if there is no biometric information for the individual can not be obtained authentication further enhances security. In addition, hologram recording can provide massive information storage capability because N × N parallel information can be recorded in units of pages, and multiple records can be recorded by changing phase, angle, polarization, position, and rotation at the same position. Therefore, it is easy to overcome the limitation of the storage information capacity which is recognized as the biggest disadvantage of the smart card currently used. In addition, a general authentication system requires a memory for storing information for personal authentication, whereas in the authentication system according to the present invention, since personal authentication information and personal identification information are recorded on a card, an additional database is required. It does not have the advantage.

Security card using a hologram according to the present invention used in such an authentication system, as shown in Figure 2, first, biometric information 210 such as fingerprint or iris for user authentication and personal information such as photo, name, resident number ( 220 is distinguished through different header information and encoded into digital data through the digital encoder 230.

The digital data encoded through the digital encoder 230 is input in a two-dimensional array of N × N through the SLM 240 which is a spatial optical modulator, and the signal beam 290 through a Fourier transform lens (FT lens) 250. The data is incident on the recording medium 260 and information is stored in the recording medium 260 in units of pages.

A reference beam 270 for recording digital information on the recording medium 260 is incident on the medium in an appropriate form, and passes through the phase pattern 280 of the M × M array before being incident. This phase pattern encrypts the shape of the reference beam 270 and provides an additional security capability to accurately restore the original information displayed on the SLM 240 only when the same phase pattern is used as in recording.

Therefore, an encrypted hologram is stored in the recording medium 260 due to the interference of the signal beam 290 and the reference beam 270, and the hologram is mounted on the personal hologram security card 200. In this case, the recording medium 260 used mainly uses a photopolymer, and can be expanded to a holographic film having a thin film form.

As shown in FIG. 3, the hologram type security card reading device manufactured through the above process has a hologram reading unit 310, a user authentication processing unit 320, a user information display unit 340, and an external biometric information reading unit 350. )

First, the hologram reader 310 makes the beam 312 coming out of the laser diode 311 through the lens 313 in the same condition as in recording, and passes the same phase pattern 314 as the phase pattern used in recording. After the incident to the hologram 315 mounted on the security card 200.

When performing this operation, the recorded digital data is detected through the CCD array 316, which is transmitted to the digital signal decoder 318 through the CCD driver 317. The digital signal decoder 318 restores the signal detected by the CCD array 316 to the original signal, and the biometric information is transmitted to the user authentication processing correlator 321 of the user authentication processing unit 320 for user authentication. Wait until the authentication signal is received.

The user authentication processing correlator 321 of the user authentication processing unit 320 performs correlation between the biometric information received from the digital signal decoder 318 and the biometric information input from the external biometric information reading unit 350, thereby authenticating the user. The result is sent to the signal generator 322. The user authentication signal generator 322 transmits the authentication result to the digital signal decoder 318 based on the correlation value received from the authentication correlator 321. At this time, the external input biometric information uses a fingerprint recognition or iris recognition technology that is currently commercially available. The user information display unit 330 performs an operation such as displaying information on the user or generating a warning sound based on the authentication signal received from the digital signal decoder 318.

That is, the user information display unit 330 stops decoding and displaying personal information and generates a warning sound when authentication is rejected by the user authentication signal generator 322, and after decoding and displaying personal information when authentication is performed by the user authentication signal generator 322. Other operations will be started.

The authentication system according to the present invention records the biometric information of the individual on the card, and performs authentication by matching the biometric information read from the card with the biometric information input from the outside so that any one of the card or the biometric information of the individual can be obtained. If it does not exist, authentication is impossible, and by encrypting the recording information for a special phase pattern, the original signal can be accurately reproduced only by the phase pattern having the same shape and position as when recording.

In addition, since the hologram recorded on the card has a phase-modulated form, the hologram recorded on the card cannot be duplicated by a conventional light intensity detector such as a camera, a copier, a scanner, and the like, thereby maximizing security.

Digital data information encryption using the phase pattern 280 as shown in FIG. 2 has improved security as shown in FIG. 4. That is, the image on the left is the image reproduced using the same phase pattern as used at the time of recording, and the original image can be seen correctly reproduced, but the image on the right is the image reproduced by inserting a phase pattern different from the recording. As a result, the original image cannot be restored. Therefore, it is expected to provide security having a very large effect in encrypting the record information using the phase pattern.

As described above, the card according to the present invention and an authentication system using the card produce a card simultaneously recording personal biometric information and personal information using a holographic technique, and compare the biometric information of the user with the biometric information present on the card. By generating the authentication signal through, it is effective to apply the information security of the method using the hologram and the biometric information at the same time, and does not require an additional database for storing information for personal authentication.

In addition, since the hologram recorded on the card has a phase-modulated form, the hologram recorded on the card cannot be duplicated by a conventional light intensity detector such as a camera, a copier, a scanner, and the like, thereby maximizing security.

Although the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited thereto and may be improved or modified by those skilled in the art within the scope of the technical idea of the present invention.

Claims (4)

Dividing the biometric information 210 and the personal information 220 through different header information and encoding the biometric information 210 and the personal information 220 into digital data through the digital encoder 230; After the step, the encoded digital data is converted into a two-dimensional array of N × N through the spatial optical modulator 240, and the converted data is recorded through the signal beam 290 passing through the Fourier transform lens 250. Incident to 260 to store information; In this step, when the digital information is recorded on the recording medium 260 by the signal beam 290, the reference beam 270 passing through the phase pattern 280 of the M × M array is transferred to the recording medium 260. Simultaneously entering and storing the hologram encrypted in the recording medium 260 by the interference of the signal beam 290 and the reference beam 270; And, And attaching the recording medium (260) storing the encrypted hologram to a predetermined position of a personal card according to a standard. The method of manufacturing a security card using a hologram according to claim 1, wherein the recording medium (260) is a photopolymer. The method of claim 1, wherein the recording medium (260) is a holographic film having a film form. In the authentication system of the security card using a hologram recorded biometric information and personal information at the same time, After passing the beam 312 output from the laser diode 311 through the lens 313 under the same conditions as the recording of the security card, and passing the same phase pattern 314 as the phase pattern used for recording the security card. The digital data recorded on the hologram 315 is incident on the hologram 315 mounted on the security card 200 through the CCD array 316, and the detected data is transmitted through the CCD driver 317. A hologram reader 310 for carrying out; Digital for restoring the signal detected by the CCD array 316 transmitted through the CCD driver 317 to the original signal, transmitting the biometric information stored in the hologram, and receiving the authentication result according to the biometric information Signal decoder 318; Correlator 321 and the authentication for user authentication processing for performing correlation between the biometric information transmitted through the digital signal decoder 318 and the biometric information input from the external biometric information reading unit 350 and transmitting the result A user authentication processing unit (320) configured of a user authentication signal generator (322) for transmitting an authentication result to the digital signal decoder (318) based on the correlation value received from the processing correlator (321); And, And a user authentication signal generator (322) for performing operations such as decoding and displaying information on a user and generating an alarm sound based on the authentication signal received from the digital signal decoder (318).