JPH02171815A - Individual identification system - Google Patents

Abstract

PURPOSE:To make it impossible to decode a personal identification number by the third person from the input operation of the personal identification number for a card bringing person by mixing a dummy code to change the arrangement of a selected personal identification display pattern and forming a personal identification code. CONSTITUTION:When a card 2 is inserted to a reading means 3, the pattern code and personal identification code of the personal identification display pattern in the card 2 are read and sent to a storing means 4. Next, the pattern code from a means 4 is sent to a display part 5a of an input means 5 and the dummy code is mixed according to the pattern code. Then, the arrangement is changed and the pattern code is displayed on a display part 30. The card bringing person pushes a input key corresponding to the displayed pattern and inputs the personal identification code. The inputted personal identification code is sent to a storing means 6. The respective personal codes of the means 4 and 6 are collated in a collating means 7 and only when the code is judged correct, financial transaction is executed.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a system for performing personal identification (verification) using a personal identification number in financial transactions such as cash withdrawals.

BACKGROUND OF THE INVENTION Cards are now widely used in personal identification systems, and these cards include a tag to identify the bearer of the card as the legitimate card holder when the card is used. PIN number is memorized. When personal identification is performed using this card, for example, in a bank deposit withdrawal machine, the withdrawal machine reads the PIN number of the inserted card, then requests the cardholder to input the PIN key, and then uses the key input. The personal identification number read from the card is compared with the personal identification number read from the card to determine that the card holder is a legitimate card holder, and subsequent transactions are then carried out. In this system, the PIN number uses a combination of relatively simple numbers (for example, a sequence of four digit integers) so that the cardholder can memorize it.

The conventional method of inputting a password will be explained below.

FIG. 6 shows a conventional password input device. In FIG. 6, 1 is an input key, which includes a group of 10 numeric keys 1a from ``0'' to 9'', and a confirmation key 1b.
and a cancellation key 1C. The card bearer inputs the memorized four-digit personal identification number from the numeric key group 1& in order from the higher digits. When all digits have been input, press the confirmation key 1b. If you make a mistake during the process, press the cancel key 1c and re-enter the upper digits manually. Deposit machines often have a set number of withdrawals that can be made, and if you exceed this limit, you will not be able to make any further transactions.

Problems to be Solved by the Invention However, in the conventional PIN input method described above, when the card holder S is manually inputting the PIN number, a third party can detect the movement of the card holder's fingers from nearby. If the card is stolen, lost, or otherwise obtained by a malicious third party, the card can be used to decipher the PIN number, allowing the card to be freely used for financial transactions, which could lead to a crime. Ta.

The present invention solves the above-mentioned problems, and aims to provide a personal identification system that makes it impossible for a third party to decipher the PIN number from the card holder's input operation.

Means for Solving the Problems In order to achieve this object, the personal identification system of the present invention uses a password display pattern each consisting of numbers, symbols, two characters, etc., and a password display pattern specified by a valid card holder. a card storing a pattern code and a pin code selected by an authorized card holder from the pin display pattern, a card reading means for reading the pattern code and pin code stored in the card, and a card reader for reading the card. a read data storage means for storing a pattern code and a password read by the read data storage means; and a display of a password display pattern including no display or two symbols intended as a dummy according to the pattern code stored in the read data storage means. a display means that changes the arrangement each time a card is inserted; an input selection means that selects an input from a display including a dummy of the display means; and a cardholder selects the password display pattern, and the pattern code is It has a configuration of a PIN code input means including a writing means that can write on the card.

Function: This configuration allows the cardholder to select a PIN display pattern that is easy for the card holder to remember, and also changes the arrangement of the selected PIN display pattern each time the card is inserted, and mixes in dummy manual input to input the PIN code. It can be carried out.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a personal identification system in one embodiment of the present invention. In FIG. 1, reference numeral 2 is a card in which a pattern code of a password display pattern, a password, value information, etc. are stored. 3
is a card reading means, which reads a pattern code and a personal identification code from the card 2 when the card 2 is inserted. Reference numeral 4 denotes read data storage means, which stores the pattern code and password read from the card 2 by the card reading means 3. 6
is a PIN code input means, in which a PIN code display pattern containing no display or one symbol intended as a dummy is displayed each time the card is inserted according to the pattern code stored in the data storage means 4. It is composed of a display means 6a for changing the password and an input selection means 6b for inputting a password. Reference numeral 6 denotes input data storage means, which stores the password code inputted from the password code input means. Reference numeral 7 denotes a collation means, which verifies the password code stored in the read data storage means 4 and the password code stored in the input data storage means 6. Reference numeral 7 denotes a card writing means, which writes the pattern code of the password display button and the password selected by the card holder onto the card. FIG. 2 is a memory diagram showing the memory area of the card in this embodiment. 21 is a PIN memory area,
This is an area that cannot be read by an external device. 22 is a pattern code memory area, which is a memory area for storing the pattern code. A PIN code memory area 23 is a memory area for storing the PIN code. A value information memory area 24 is a memory area for storing monetary value information such as card usage history. Figure 3 shows the PIN code input means 6 in this embodiment.
1 shows a front view. A is a display example when the pattern code is intended to be displayed numerically. Here, 30 is a display section of the display means 6a.

31 is a key that means a bar, and is treated as a type of number. 32 is a dummy key, and even if the dummy key is pressed, it will not be treated as a password code. Reference numeral 33 denotes an input key of the input selection means 6b, and input is performed by selecting one digit of the password code from among the numbers displayed on the display section 30 and pressing the corresponding input key 33. B is a display example when the pattern code is intended to be displayed alphabetically. Here, 34 is a dummy key. C is a display example when the pattern code is intended to be displayed in katakana. Here, 35 is a dummy key.

The operation of the personal identification system configured as described above will be explained below with reference to FIG. 4 when writing a card and FIG. 6 when using a card.

First, in FIG. 4, a card writing application is made, and the card writing means 7 writes a 9PIN code into the PIN memory area 21 of the card 2 according to this content (
stop). Next, select the password display pattern 5to
p 2), the pattern code is written into the pattern code memory area 22 of card 2 (stop 4). Next, select and enter your PIN code. When this is finished (s
top 5), Card 2 PIN code memory area 23
Write the PIN code to (stop 6). Next, value information such as price is written into the value information memory area 24 of the card 2. Then, a card is issued (stop 8).

Next, in FIG. 6, the card bearer first inserts the card 2 into the card reading ring 9 means 3.
).

Then, the card reading means 3 reads the pattern code of the password display pattern stored in the card 2 (st
op 10), and the pattern code is stored in the read data storage means 4 (s+tep 11). Next, the card reading means 3 reads the PIN code stored in the card 2 (step 12), and stores the PIN code in the reading data storage means 4 (11p13). Next, the read data storage means 4 sends the turn code to the display means 6a of the PIN code input means 6, and according to the pattern code, a pattern containing no display or two symbols intended as a dummy, such as numbers, alphabets, katakana, etc. The display section 30 of the display means 6a is mixed with dummies and rearranged.
(st@p 14). Changing the arrangement here means changing the position of the beginning of the pattern, but keeping the arrangement the same. Next, the card holder is prompted to enter the PIN code. The cardholder enters the input selection means 68 using the input key 33 corresponding to the pattern displayed on the PIN code display section 30.
Enter one digit of the PIN code by pressing (ste
p 1ri. The PIN code you entered is dummy button 32.3
4. If 36 means dummy when you press it, it is assumed that no input was made and prompts you to enter the PIN code again. If the PIN code you entered does not mean dummy 33 (stop 16) Next, it is determined whether all digits of the PIN code have been entered, and if all digits have not been entered, the user is prompted to enter the PIN code again, and if all digits have been entered (stop 1).
), input the entered PIN code into the data storage means e
The code stored in the read data storage means 4 is compared with the code stored in the input data storage means 6 by the verification means 7 (stop 19), and it is determined that the code is valid. If so, subsequent financial transactions are performed (stop 20). If it is determined to be inappropriate, the card will be returned without further financial transactions (s+tap21).

Also, when a financial transaction is performed, the card is returned to the cardholder after the financial transaction is completed (stop 21). Then, the system enters the card insertion waiting state again.

As described above, according to this embodiment, numbers and symbols.

Each piece is 1ft long, including letters.

A pattern code specified by a legitimate card holder in the PIN display pattern, a card 2 that stores a PIN code selected by the legitimate card holder, value information, etc., and a PIN display pattern selected by the person who becomes the card holder. A card writing means 7 for writing a code and a pin code on the card 2, a card reading means 3 for reading a pattern code and a pin code from the card 2, and a card reading means 9 for storing the pattern code and pin code read by the card reading means 3. A data storage means 4, a display means 6a for displaying a password display pattern including no display or two symbols intended as a dummy according to a pattern code stored in the read data storage means 4, changing the arrangement each time a card is inserted, and a password code. By providing the PIN code input means 6 consisting of an input selection means 6b for inputting the PIN code, the cardholder can select the display pattern of the PIN code of his/her preference, and can select one that is easy for the card holder to remember. If so, the number of digits in the PIN code can be increased, increasing security. In addition, the arrangement of the display pattern changes each time a card is inserted, and blank buttons 32, 34, and 35 are added. An identification system can be provided.

In this embodiment, the display pattern examples are numbers, alpha bent letters from A to K, and a part of katakana, but any character can be displayed without being limited to these.

It only needs to be a part of a symbol, number, figure, etc.

In this embodiment, the arrangement of the display patterns is changed each time the card is inserted, but a switch may be installed that allows the card holder to select whether or not to change the arrangement according to his/her will.

In this embodiment, there are 12 types of keys for entering the personal identification code, but any number of types may be used without being limited to this.

Effects of the Invention As described above, the present invention provides a card that stores a pattern code of a PIN display pattern, a PIN code specified by an authorized card holder, value information, etc. each consisting of a number, a single symbol, etc. a card writing means for writing a pattern code and a pin code of a pin code display pattern selected by the card holder on the card; a card reading means for reading the pattern code and the pin code from the card; A read data storage means for storing a pattern code and a PIN code, and a display of a PIN code display pattern that is intended to be a dummy or is blank or includes 8 characters of symbols, and the arrangement is changed each time the card is inserted, according to the pattern code stored in the read data storage means. By providing a PIN code input means consisting of a display means for displaying the PIN code and an input selection means for inputting the PIN code, the cardholder can select a display pattern of the PIN code of his/her preference, so long as it is easy for the cardholder to remember. It is also possible to increase the number of digits in the PIN code, increasing security. Additionally, by changing the arrangement of the display pattern each time the card is inserted and by adding a dummy to the display pattern, an excellent personal identification system has been realized that makes it impossible to guess the PIN code from finger movements when entering the PIN code. It is possible.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a personal identification system showing one embodiment of the present invention, FIG. 2 is a memory diagram showing the memory area of a card according to one embodiment of the present invention, and FIG. 3 is a block diagram of a personal identification system showing one embodiment of the present invention. 4 and 6 are flowcharts showing the operation of the second embodiment of the present invention, and FIG. 6 is a front view of a conventional PIN input device. 2...Card, 3...Card reading means, 4...Reading data storage means, 6...
...PIN code input means, 6a...Display means, 6b...Input selection means, 6...Input data storage means, 7...Verification Means, 30...
...Display section, 33... Name of person in charge of entering the key, patent attorney Shigetaka Awano, and one other person Rororo 口口口口口Rorororo roll-up diagram

Claims (1)

[Claims] A personal identification system that determines whether or not a person carrying a card is a legitimate card holder. a card storing a pattern code and a pin code selected by an authorized card holder from the pin display pattern; a card reading means for reading the pattern code and pin code stored in the card; PIN code input means for inputting a code, read data storage means for storing the pattern code and PIN code read by the card reading means, and input data storage means for storing the PIN code input by the PIN code input means. and verify whether the input pin code is valid by comparing the card pin code stored in the read data storage means and the input pin code stored in the input data storage means. and a card writing means capable of writing the pattern code of the PIN display pattern selected by the card holder and the PIN code on the card, and the PIN code input means includes A display means for displaying a password display pattern with no display intended as a dummy or including symbols and characters in accordance with the pattern code stored in the read data storage means, changing the arrangement each time a card is inserted, and a dummy of the display means. 1. A personal identification system comprising: input selection means for selecting an input from a display that includes.