JPS60258676A - Code number updating device - Google Patents

Abstract

PURPOSE:To easily update a code number for prevention against illegal use of a card by providing digits which can be updated as part of the code number of the card, and increasing the number of the digits or replacing it with a random number. CONSTITUTION:A gate entrance/exit controller reads the code number of the card that user inserts at an entrande/exit gate and opens the gate 6 when a code number which is keyed in coincides with the number of the card, allowing the vehicle to enter. A card reader 3 consists of a read head 3a which reads magnetic informatio recorded on the card and a write head 3b which writes update data on the code number. A key input device 4 includes a ten-key keyboard on which the user kays in data when entering. A receipt issuing device 5 issues a receipt on which a new code number is printed when the code number is changed into the random number.

Description

Detailed Description of the Invention (a) Technical Field This invention relates to a password updating device f for updating and registering a card's password to an appropriate number with a simple operation. (b) Prior art and its disadvantages Currently, financial institutions The PIN number recorded and registered on the card is used to check whether or not transactions are permitted at ATMs, CDs, etc. installed, and to manage the entry and exit of unmanned parking lots, but conventional PIN numbers are fixed after registration, so they are not used. Customers were unable to update their card PIN numbers. For this reason, there is a problem in that if the password is leaked to a third party, there is a high possibility that the card will be lost or stolen and used fraudulently.

(C) Purpose of the invention In view of the above-mentioned circumstances, the purpose of the present invention is to make a part of the card's PIN code a renewable digit and increment the digit or replace it with a random number. To provide a password updating device capable of easily updating a password to prevent unauthorized use.

(d) Structure and Effects of the Invention This invention provides a card league that reads from a card a PIN number recorded on a card that is composed of an m-digit fixed number and a 0-digit updatable number; and a PIN number read by the card reader. a number updating means for incrementing a zero-digit number or replacing it with a random zero-digit number; and means for storing and registering the password updated by the number updating means in the card and memory as a new password. It is characterized by

With the above configuration, according to the present invention, the (m+n') digit PIN is not fixed and can be updated and registered by incrementing the 0-digit number or replacing it with a random number at any time, so that the card cannot be used. FIG. 3 is a control block diagram of an entrance/exit management device to which the present invention is applied. .

This entrance/exit management device is composed of a microcomputer system consisting of a CPUI and a memory 2, and is equipped with a card reader 3, a key input device 4, a receipt issuing device 5, and a gate 6 as input/output devices.

The entrance/exit management device of this embodiment manages and operates the parking lot so that only card holders registered in the memory 2 in advance can use the parking lot. If the keyed-in password matches the card number, the gate 6 is opened and the vehicle is allowed to enter. Please note that there is no password check when entering the bath. .

Figure 4 shows the vicinity of the exit gate of the parking lot where the above-mentioned entrance/exit control device is installed.

The card reader 3 consists of a reading head 3a that reads magnetic information recorded on the card, and a writing head 3b that writes update data of the password.

The key-powered device 4 includes a numeric keypad for the user to key in when entering the room. A receipt issuing device 5 issues a receipt on which a new password is printed when the password is changed to a random number. Reference numeral 7 denotes a passage detection sensor that detects passage of a vehicle through the gate 6 when a public hot spring is open.

The memory 2 is an area A that stores card information such as the card PIN number and registered vehicle number read by the card reader 3.
, area B for storing the keyed-in PIN number, area C for the random number data table used to update the PIN number, counter area D for counting the selection order of the random number table, and registration of the user's vehicle number, etc. It has an area E for storing and registering the card's PIN number along with the data. .

In this example, a 4-digit PIN number is used, and the top 3
The digits are fixed and the last digit is an updatable number. There are two methods for updating the PIN. One is + in the last digit
One method is to increment the password by 1 (this is called method A), and the other is called method B, which is a method in which the last digit is replaced with a number taken from a random number table. ). The above two methods can be selected using a method selection key (not shown) of the key-powered device 4.

Next, the operation at the time of entry check will be explained with reference to the flowcharts of FIGS. 1 and 2.

Figure 2 shows the overall operation during the introductory check.

Step nl (Hereinafter, step ni will be simply referred to as ni.

), when the customer inserts the card into the card slot (not shown), the card information is read by the card reader 3 (n
2). Next, key in the password (n3). As a result of checking the number read from the card and the key-in number, if the password does not match, an alarm is issued and the process proceeds to reset processing by the staff (n 4. 'n' I O, 'n 11'). If the passwords match, the process moves to the password change processing routine (n5).

FIG. 1 shows the specific operation of the change processing routine (n5). ``If the customer wishes to update the PIN number, select update method A or B (n20.n22).When method A is selected, add 1 to the last digit of the previous PIN number stored in area A. For example, if the number before update is 0954, the new password becomes 0955. If the last digit before update is 9, it will be changed to 0 by update.

In the case of this update, by informing the customer in advance that in Method A, the last digit of the number will be incremented, there is no need to notify the customer of the updated new password.

When using method B, random number data is extracted from the random number table in area C and replaced with the last digit of the previous password stored in area A (n25). For example, if the number before update is 0954 and the random number data is 7, the new password will be 0957. Since the password becomes unknown due to this update, a receipt with the new password printed on it is issued (n26). The above random number data selection is performed in the order of the count value of area D. For this reason, when updating to method B or even when not updating, the count value is incremented each time the introductory check is performed so that different random number data can be selected at night (n21, n24. n
27).

After the above update process, the new password is stored and registered in area E and recorded on the card (n6). After updating this password, the gate 6 is opened and the vehicle is allowed to enter (n7). When the passage detection sensor 7 detects that the vehicle has passed through the gate, the gate 6 is closed again (n 8. n
9).

The above n6 is a means for storing and registering a new PIN number in the card and memory in the present invention, and n23 and n25
correspond to the number updating means in the present invention, respectively.

With the above operations, customers can easily change their PIN number by simply instructing it to be updated when using their card.
Unauthorized use due to loss or theft can be prevented.

[Brief explanation of drawings]

FIG. 1 is a flowchart showing the overall operation at the time of entry check in the entrance/exit management device to which the present invention is applied, FIG. 2 is a flowchart showing the specific operation of the password update process in the doujin exit/exit management device, and FIG. FIG. 4, a control block diagram of the entrance/exit management device, is a plan view of the vicinity of the exit gate of the parking lot where the entrance/exit management device is installed. 3-card league, 6-gate. Figure 1 - Figure 2 Figure 3 Figure 4 Figure 7

Claims (1)

[Claims] (1) A card league in which a PIN number consisting of an m-digit fixed number and a 0-digit updatable number recorded on the card is read from the card, and a 0-digit number of the PIN read with the above-mentioned power, -do, league. (7) a number updating means for incrementing the number or replacing it with a random 0-digit number; and a means for storing and registering the password updated by the number updating means in the card and memory as a new password. Device.