KR20040037449A - A Mobile Fingerprint Key And A Verification System using thereof - Google Patents

Abstract

PURPOSE: A portable fingerprint recognizing key and an authentication system using the same are provided to block illegal usage of a portable terminal by adding a fingerprint recognizing function, and perform authentication function in moving or a remote place. CONSTITUTION: A portable terminal having the fingerprint recognizing key function comprises a key pad(102), a fingerprint recognizing sensor(104), a bio informatics sensor(106), a microprocessor(108), a memory(110), a key signal transmitter(116), and a wireless communication part(114). The key pad(102) receives key inputs and other input operations. The fingerprint recognizing sensor(104) includes the bio informatics sensor(106) for detecting a bio informatics. The fingerprint recognizing sensor(104) blocks illegal authentication or forged fingerprint. The microprocessor(108) executes a software installed at the memory(110), and performs whole functions related on the fingerprint reorganization. The memory(110) stores fingerprint data transmitted from the fingerprint recognizing sensor(104) and data transmitted from the fingerprint authentication server. The wireless communication part(114) outputs result of processing of the micro processor(108).

Description

Portable Fingerprint Key and A Verification System using same

The present invention relates to a fingerprint recognition technology, and more particularly, to a portable fingerprint recognition key and an authentication system using the same, which can be used as a universal key and an authentication terminal by having a fingerprint recognition function in a mobile terminal such as a mobile phone.

In general, in order to build a security system using the basic characteristics of the body, the characteristics of the body must satisfy the following conditions. That is, first, it must be a distinctive feature for each individual, secondly, a permanent feature that is not easily changed, third, a feature that is clearly defined, and fourth, convenience for use.

Various methods for using such a biometric system have been proposed.

For example, in case of voice recognition, there is no need for physical contact, and it has a good advantage in the convenience of use, but in terms of reliability, the rejection rate is 5-10% and the acceptance rate of others is 0.2-04%. It is difficult to use in the system requiring advanced control, and in case of the retina authentication system, it is very low in other people's acceptance rate and rejection rate, but it provides the best security, but the input device to extract the features of the retina is bulky and expensive. Psychological rejection to close eyes even in actual use is very large inconvenience in use.

However, in the case of fingerprint recognition system that extracts the features of the fingerprint and identifies the identity of the user, even if the user has a good security power of 0.05% and the acceptance rate of others is 0.0002%, the finger is lightly touched on the input device. It is very economical, and its application field is very wide from high security system to general commercial security system.

In general, the authentication process using fingerprints consists of a classification process for classifying various fingerprints by type and a matching procedure for confirming identity. In addition, the personal authentication system of the fingerprint compares the registered fingerprint and the input fingerprint with a one-to-one identification system that distinguishes the input fingerprint from among a plurality of registered fingerprints. It is divided into a verification system.

On the other hand, as the spread of mobile phones exploded, the illegal use of mobile phones theft and loss has gradually increased, and e-commerce has been actively progressed due to the development of the Internet. However, in the conventional authentication system using ID or password, Passwords are exposed by hacking, and cyber crime is on the rise.

Therefore, a stronger authentication function is required for mobile devices such as mobile phones and PDAs, and as wireless communication technology advances, mobile terminals can be used to handle various electronic transactions such as financial transactions and electronic document exchanges over long distances. There is an increasing need for fingerprint recognition as a means for party authentication in commerce.

Accordingly, the present invention can control illegal use of the device by adding a fingerprint recognition function to a portable terminal such as a mobile phone in order to meet the necessity as described above, and can perform various authentication services using fingerprint recognition on the go or remotely, It is an object of the present invention to provide a portable fingerprint recognition key that can operate as a key and an authentication system using the same.

1 is a block diagram of a mobile phone having a fingerprint key function according to the present invention,

2 is a flowchart illustrating a procedure for registering a fingerprint according to the present invention;

3 is a flowchart illustrating an authentication procedure for using a terminal according to the present invention;

4 is a flowchart illustrating a procedure of operating with a fingerprint key according to the present invention;

5 is a block diagram of a system for making a financial transaction using a fingerprint key according to the present invention;

6 is a flowchart illustrating a procedure for making a financial transaction using a fingerprint key according to the present invention;

Figure 7 is a block diagram showing another embodiment using a fingerprint key according to the present invention.

* Explanation of symbols for main parts of the drawings

100: mobile phone with a fingerprint recognition key 102: keypad

104: fingerprint recognition sensor 106: biometric sensor

108: microprocessor 110: memory

114: wireless communication unit 112: LCD display unit

116: key signal transmission unit

In order to achieve the above object, the fingerprint recognition key of the present invention includes a key input unit for a user to operate a device; A fingerprint recognition sensor for inputting a fingerprint; Memory for storing programs and data; Display means for displaying a control item or a process; A wireless communication unit for communicating with a mobile communication network; And by performing the software stored in the memory, receiving fingerprint data from the fingerprint recognition sensor, comparing the input fingerprint data with registered fingerprint data, and performing self authentication, or inputting the fingerprint data to the authentication server through the wireless communication unit. And a microprocessor for transmitting and controlling the display means to display the process.

In order to achieve the above object, the authentication system of the present invention includes a portable terminal having a fingerprint recognition key function; When applying for financial transaction service, the customer registers the PIN of the customer's portable terminal and the unique number (or card number when the smart card IC is embedded in the portable terminal) and the fingerprint of the customer in advance (personal authentication from the portable terminal). A fingerprint authentication server which receives a terminal PIN, a customer number, and customer fingerprint data from the portable terminal and sends the authentication result when compared with the fingerprint registered for the customer; And a payment system for requesting the fingerprint authentication when the financial transaction service is requested from the portable terminal, receiving a fingerprint authentication result from the fingerprint authentication server, and processing the financial transaction service requested by the terminal when authentication is successful. It is done.

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

1. Fingerprint Identification Key

1 is a block diagram of a mobile phone having a fingerprint recognition key function according to the present invention, the mobile phone of the present invention is a keypad 102, fingerprint recognition sensor 104, biometric sensor 106, microprocessor 108 And a memory 110, an LCD 112, a key signal transmitter 116, and a wireless communication unit 114 to operate as a normal mobile phone and to operate as a universal key in the "key mode".

Referring to FIG. 1, the keypad 102 is a key input means for inputting various operations, and the fingerprint recognition sensor 104 is a fingerprint recognition sensor using semiconductor technology. 108) to deliver. In general, the fingerprint detection method is classified into an optical sensing method using a prism or a hologram, and a non-optical sensing method using a sensor array, an electric field, an ultrasonic wave, and the like. It is preferable to use. In particular, the fingerprint recognition sensor 104 of the present invention has a built-in biometric sensor 106 for detecting a living body, it is possible to prevent illegal authentication, such as a finger cut or imitated fingerprint.

The microprocessor 108 executes software mounted in the memory 110 to perform various functions related to fingerprint recognition. In particular, as described below, the fingerprint data received from the fingerprint recognition sensor 104 is processed for fingerprint recognition according to the present invention to prevent illegal use of the device and the fingerprint data to a remote fingerprint authentication server through the wireless communication unit 114. It can carry out various financial services by using authentication and performs the function as a universal key in key mode.

The memory 110 includes an EEPROM, a flash memory, a DRAM, and the like, and includes a software for processing fingerprint recognition, an operating system (O / S), a variety of application programs, and communication software for a unique function of the terminal according to the present invention. . In addition, it stores the fingerprint data input from the fingerprint recognition sensor 104 and various data received from the fingerprint authentication server.

The wireless communication unit 114 is a CDMA module for enabling communication by wirelessly connecting a mobile phone to a base station, and the LCD 112 displays various functions of the mobile phone and is processed by the microprocessor 108 in connection with a fingerprint recognition function. Show processing status and results.

The key signal transmitting unit 116 transmits the unlocking signal or the start signal to the locking system or the vehicle when the cellular phone to which the present invention is applied is operated in the "key mode". It sends out in a way.

2 is a flowchart illustrating a procedure for registering a fingerprint according to the present invention.

In order to authenticate a fingerprint in the fingerprint authentication system, at least a fingerprint registration process must be performed in advance. In the case of financial transactions, the fingerprint registration process is registered at the time of the initial financial transaction application, and in the case of a mobile phone, it is desirable to register together with the subscriber authentication procedure. This registration process should be carried out through more rigorous identity verification procedures.

Referring to FIG. 2, after the subscriber authentication process is completed at the time of initial purchase of the mobile phone, the fingerprint of the mobile phone owner is scanned by the fingerprint recognition sensor 104 (201 and 202). Fingerprint data sensed by the fingerprint recognition sensor 102 is processed according to a predetermined algorithm, and feature points are extracted and stored as reference fingerprint information in the memory 110 (203 and 204). That is, the fingerprint has a plurality of feature areas in addition to the normal area of the fingerprint ridge having the correct direction. The point where the ridge proceeds and breaks in these features is called the ending point, and the point where the ridge splits is called the bifurcation, collectively referred to as the feature point (Minutiae). Normally, about 100 to 150 feature points are distributed on one finger, and the type, position, and direction are different for each person. Therefore, the position and direction of these feature points can be used as the means for discriminating the fingerprint.

The fingerprint registered in this way is then used as a comparison criterion for the input fingerprint.

3 is a flowchart illustrating an authentication procedure for using a terminal according to the present invention, and FIG. 4 is a flowchart illustrating a procedure of operating a fingerprint recognition key according to the present invention.

Referring to FIG. 3, a user requests a fingerprint input to use a cellular phone device according to the present invention (301). When the user places a finger registered on the fingerprint sensor 102, the fingerprint sensor 102 scans the extracted feature points according to a predetermined algorithm and compares the registered fingerprint with the input fingerprint (302 to 304).

After comparing the location and direction of the feature points of the two fingerprints, if they match, the device is allowed to be used. If they do not match, the device is requested to be re-entered. 308).

On the other hand, in the mobile phone according to the present invention, if the user sets the operation mode of the mobile phone to the "key mode", the key of the present invention can operate as a universal key.

Referring to FIG. 4, when the mobile phone is set to the key mode, fingerprint input is requested (401, 402). Subsequently, when a living body is detected by the biometric sensor 106, the fingerprint recognition sensor 104 scans a fingerprint to input fingerprint data (404). Then, after extracting the feature point from the detected fingerprint data according to a predetermined algorithm, comparing the position and the direction of the feature point of the enrolled fingerprint and the input fingerprint, if it is matched, the unlock signal is sent; if it is not matched, the unlock signal is not sent (405). 408).

2. Financial transaction system using fingerprint recognition key

FIG. 5 is a block diagram of a system for performing a financial transaction using a fingerprint recognition key according to the present invention. The mobile phone 100, the mobile communication network 510, the gateway 520, and the fingerprint recognition sensor 104 are provided. Dedicated network 530, fingerprint authentication server 540, payment system 550, and financial terminal 560 is shown.

Referring to FIG. 5, the mobile phone 100 operates as a normal mobile phone, and a fingerprint recognition sensor 104 is added according to the present invention to perform a fingerprint recognition function.

The mobile communication network 510 is a communication network consisting of a base station and mobile switching center, and is connected to the dedicated network 530 through a gateway 520, and the dedicated network is connected to financial company systems. The financial institution system includes a fingerprint authentication server 540 for performing fingerprint authentication, a payment system 550 for processing a financial transaction, and a financial terminal 560 such as an ATM. At this time, the fingerprint authentication server 540 should be registered PIN and the unique number given to the customer, the fingerprint information for the customer.

In this configuration, a procedure of performing a financial transaction using a fingerprint key according to the present invention will be described with reference to FIG. 6.

Referring to FIG. 6, when a customer requests a payment by connecting to the payment system 550 by the mobile phone 100, the payment system 550 requests authentication. When the customer touches the registered finger on the fingerprint recognition sensor 104 of the mobile phone for authentication, the fingerprint data is input, and the location and direction information (fingerprint information) of the feature point is extracted from the mobile phone 100. At this time, the extracted fingerprint information is used for the first authentication process in the internal fingerprint reader of the mobile phone to extract the PIN of the mobile phone and the corresponding customer's unique number, and is formed into a predetermined data packet together with the previously extracted fingerprint information to form a mobile communication network 510 The gateway 520 and the dedicated network 530 are transmitted to the fingerprint recognition server 540. In this case, the scanned fingerprint data may be transmitted as it is. However, in order to reduce the amount of data to be transmitted, it is more preferable to transmit only the extracted feature point information (such as position and direction) after extracting the feature point.

Fingerprint authentication server 540 compares the customer's fingerprint information corresponding to the PIN and the customer's unique number of the mobile phone delivered in the second fingerprint authentication process and the fingerprint information of the delivered customer, the authentication result is the mobile phone 100 and the payment system In step 550, the payment system 550 processes the financial transaction requested by the customer if the fingerprint is matched with the authentication result.

On the other hand, if the requested financial transaction requires the operation of the financial terminal 560 such as an ATM (for example, cash withdrawal), the payment system 550 transmits the authentication result to the corresponding financial terminal 550 after the fingerprint authentication, the user Allows you to handle the service you want.

As described above, according to the present invention, a fingerprint recognition key function is provided on the portable terminal, so that a desired financial transaction can be securely handled on the move or at a long distance. In particular, compared to the conventional authentication system using only an ID or password, a fingerprint recognition function is added, so that financial transactions can be processed with confidence in an enhanced security state.

3. Locking system using fingerprint recognition key

7 is a block diagram showing another embodiment using a fingerprint recognition key according to the present invention, the starter 730 installed in the mobile phone 100, the receiver 710, the door lock 720, the vehicle 732 is shown It is.

As described above, the mobile phone 100 equipped with the fingerprint recognition key function includes a "mobile phone mode" operating as a normal mobile phone and a "key mode" operating as a universal key. In the cellular phone mode, wireless communication with the base station of the mobile communication network is performed through the wireless communication unit 114 shown in FIG. 1, but in the key mode, the key signal transmitter 116 operates to operate the locking systems 710 and 720 or the vehicle 732. To control.

Referring to FIG. 7, when the mobile phone 100 operates in the key mode, the user prompts the fingerprint sensor 104 to input a fingerprint, and the mobile phone 100 is registered with the input fingerprint according to a predetermined algorithm. When the fingerprint information is compared and matched, a lock release signal for releasing the door locking systems 710 and 720 or a start signal for starting the vehicle 732 is transmitted. That is, when the key signal transmitting unit 116 of the mobile phone 100 operates in the key mode and the authentication is successful by the fingerprint recognition process, the unlocking signal or the start signal is transmitted to the locking system or the vehicle, such as an infrared method or a wireless signal method. Send it out.

Accordingly, the door lock 720 of the door locking system releases the lock when the unlock signal is received through the receiver 710, and the starter 732 of the vehicle starts the vehicle 732 when the start signal is received through the receiver. Hangs.

As described above, when the mobile phone 100 operates as a universal key, the mobile phone 100 processes the fingerprint recognition process to send only the unlock signal, but in the door lock 720 or the starting device 730 to enhance security. You can also perform a fingerprint recognition process. That is, the door lock 720 or the starting device 730 receives the fingerprint in advance, receives the fingerprint data from the fingerprint recognition sensor 104 of the mobile phone and compares the input fingerprint and the registered fingerprint and then the registered fingerprint and the input fingerprint is Only when they match, do the action (unlock or start the car, etc.).

As described above, in the embodiment of the present invention, the fingerprint recognition function enables the use of the entire device (such as a mobile phone or PDA) or the use of some services only when the user's fingerprints match. Illegal use can be blocked at source. In addition, in performing a financial transaction using a mobile phone, the present invention enables authentication using a fingerprint recognition, so that a financial service can be processed more securely than a conventional method using only an ID and an ID, and is more convenient than other biometrics. And it does not give the user a sense of denial, it can be applied to various other services that require security.

What has been described above is just one embodiment of a portable fingerprint recognition key and an authentication system using the same according to the present invention, and the present invention is not limited to the above-described embodiment, but is claimed in the following claims. Without departing from the gist of the invention, those skilled in the art to which the present invention belongs to the technical spirit of the present invention to the extent that various modifications can be made.

Claims (8)

A key input unit for operating a device by a user; A fingerprint recognition sensor for inputting a fingerprint; Memory for storing programs and data; Display means for displaying a control item or a process; A wireless communication unit for communicating with a mobile communication network; And By performing the software stored in the memory to receive the fingerprint data from the fingerprint recognition sensor and compares the input fingerprint data with the registered fingerprint data to perform self-authentication, or transmit the input fingerprint data to the authentication server side through the wireless communication unit And a microprocessor for controlling the display means to display a processing procedure. The fingerprint fingerprint key of claim 1, wherein Further provided with a key signal transmitting unit for transmitting a predetermined operation signal, And the microprocessor controls the key signal transmitter to transmit a predetermined operation signal when the fingerprint is matched after the fingerprint authentication in the key mode. The portable fingerprint key according to claim 2, wherein the key signal transmitter transmits a lock release signal when the fingerprint key is applied to the locking system. The portable fingerprint key according to claim 2, wherein the key signal transmitter transmits a start signal when the fingerprint key is applied to the vehicle starting apparatus. The portable fingerprint identification key according to any one of claims 2 to 4, wherein the key signal transmitter transmits an infrared signal. The portable fingerprint recognition key of claim 1, wherein the fingerprint recognition sensor has a built-in biometric sensor. A portable terminal having a fingerprint recognition key function; After registering the PIN, the customer's unique number, and the fingerprint of the customer's portable terminal and requesting the second fingerprint authentication through the first terminal authentication from the portable terminal, the PIN and the unique number are received by receiving the fingerprint data from the portable terminal. A fingerprint authentication server which sends an authentication result by comparing the registered fingerprint of the corresponding customer; And When the financial transaction service is requested from the portable terminal, the fingerprint authentication is requested, and when the authentication is successful by receiving a fingerprint authentication result from the fingerprint authentication server, the terminal comprises a payment system for processing the financial transaction service requested by the terminal. Authentication system using a portable fingerprint identification key. 10. The method according to claim 7, wherein if the financial transaction service requested through the portable terminal is related to a financial terminal, the payment system instructs the financial terminal to perform service according to the authentication result. Authentication system.