JPS629471A - Confirming device for password information of integrated circuit card - Google Patents

Abstract

PURPOSE:To confirm again a password number even in case the owner of an integrated circuit IC card forgets his/her password number, by having comparison between the password information stored previously in accordance with a specified IC card and the password number stored by said IC card itself. CONSTITUTION:An end of an IC card 8 is put into the card slit of a printer electronic calculator 1 containing a terminal to secure the electrical connection between connection terminals 20 and 21. Then the data X proper to the card 8 is extracted through an IC card specifying data memory 27 and transmitted in the form of the card specifying data. At the terminal side the corresponding proper data X1 is retrieved out of a password information memory 12 based on the specifying data X1. Then the stored password number is recognized and specified as a number corresponding to the card 8. Then this specified password number is extracted out of the memory 12 and sent to the card 8 to be held by an password information holding RAM 30. Then a comparing part 31 compares the password number stored in the RAM 30 with that stored in the memory 29.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an IC card for outputting the password information of an IC card used as a cash card or a credit card issued by a financial institution such as a bank as needed. Regarding a password information confirmation device.

[Prior art and its problems] In recent years, it has been called the cashless era, and by using cards issued by credit card companies, it has become possible to purchase products without handling cash. . Conventionally, plastic cards, embossed cards, magnetic striped cards, and the like have been generally used as the above-mentioned cards, but these cards are easy to forge due to their structure, and unauthorized use has become a problem. In order to solve these problems, recently WIC cards have been developed, which are information cards that incorporate an IC circuit that stores a PIN number, etc., into the card so that the PIN number cannot be read easily from the outside. . This IC card is difficult to forge, has excellent confidentiality, and has the advantage of being able to store a large amount of information. Even a bank employee (for example, a bank employee) cannot know your PIN number, making it extremely insecure.

However, when using the above-mentioned IC card, the card owner often forgets his or her PIN number, and with this IC card, the PIN number is completely unknown to others. There is a problem in that the card owner has no choice but to discard the card unless he/she remembers the PIN number.

[Object of the invention] This invention was made in view of the above problems.
For example, an object of the present invention is to provide a PIN information confirmation device for an IC card that allows the cardholder to reconfirm the PIN information stored inside the card even if the cardholder forgets his/her PIN number. do.

[Summary of the Invention] That is, the IC card PIN information confirmation device according to the present invention stores the PIN information in the device in advance at the same time as the PIN information is written to the IC card, and then reads the PIN information from the IC card that is connected later. The card type is recognized by a unique signal, and the pre-stored password information can be output and confirmed in correspondence with the recognized specific IC card.

[Embodiments of the invention] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the external configuration of the IC card PIN information verification device. A printer calculator 1 with a terminal of this device is provided with a keyboard 2, a display section 3, and a printer 4 on the top surface of the main body. The keyboard 2 includes calculation keys such as a numeric keypad and function keys, as well as IPI
It is equipped with an N key 5 and a PIN key 6. The above IPI
The N key 5 inputs the verification number IPIN (■
n1tialization personat
Similarly, the PIN key 6 is used to input the PIN (Pers.Identification Number).

nal Identification Number
er) is used when registering. The above reference number IPI
N is a random code of, for example, 6 bits, which is used until the cardholder's personal identification number PIN is used. Further, a changeover switch 9 is provided on the same side of the main body where the card insertion lower is provided to select the type of input data from the IC card 8 when confirming the password information.

Next, the circuit configuration of the terminal-equipped printer calculator 1 will be explained with reference to FIG.

In the figure, 11 is a pass line, and this pass line 11
includes a password information memory 12 that stores password information of a plurality of IC cards, an input control unit 13 that controls the keyboard 2,
Arithmetic control unit 14, system ROM 15, system control unit 16, display control unit 17 that controls the display unit 3, printer (
A print control section 18 that controls the print section 4 is connected. The pass line 11 also includes an interface section 19.
The IC card 8 is then connected via the connection terminal 20.

When registering the password information from the keyboard 2 via the pass line 11 and the interface section 19 to the IC card 8 connected by the connection terminal 20, the password information memory 12 stores information unique to the IC card at the same time as the registration. The above-mentioned password information is stored in advance in correspondence with the memory location where the data is written.Here, the password information corresponding to the unique data XI, PIN2. ...It is shown closed. Here, the above card-specific data X1゜X2
．． . . is data that is read out from the IC card 8 and set when the PIN of the IC card 8 is registered using this terminal. Each card-specific password information PIN1. stored in this password information memory 12. PIN2.
. . . indicates OK, which will be described later, from the connected IC card 8.
After receiving the double signal, it is taken out and output to the display section 3 via the display control section 17 or to the printing section 4 via the print control section 18.

Next, the circuit configuration of the IC card 8 will be explained with reference to FIG.

In the figure, reference numeral 21 denotes a connection terminal opposite to the connection terminal 20 of the printer calculator 1 in FIG.
connected to. This pass line 23 includes a system ROM 24, a system control unit 25, and a passbook memory 26.
and an IC card specific data memory 27 are connected. This IC card identification data memory 27 stores, for example, 64-bit data X that is different for each card to identify each IC card, and this card-specific data X is stored at the time of card manufacture. For example, it is written as card company specific data. The bankbook memory 26 also stores deposits and withdrawals.

Various data on the balance amount will be written. Furthermore, an IPIN memory 28, a PIN memory 29, and a RAM 30 for holding personal identification information are connected to the pass line 23. Above IP
The IN memory 28 contains the identification number (IPIN) written in advance at the time of card manufacture, and the PIN memory 29 contains the
When this card 8 is connected to the terminal-equipped printer/calculator 1, a personal identification number (PIN) written by the card owner using the keyboard 2 is stored. On the other hand, the identification number IPIN inputted from the keyboard 2 of the printer calculator 1 is stored in the RAM 30 for holding password information, or the verification number IPIN inputted from the keyboard 2 of the printer calculator 1 is stored in the password information memory
The personal identification number PIN taken out from 2 is supplied via the interface parts 19 and 22, respectively, and is temporarily held in memory. A comparator 31 is provided in the IPIN memory 28 and PIN memory 29 and the RAM 30 for holding password information.
is connected, and the comparison output signal from the comparison section 31 is supplied to the system control section 25. This comparison section 31 is
The verification number (IP
IN) or personal identification number (PIN) and the above RAM30
The system controller 25 compares and matches the verification number IPIN or password PIN that is temporarily stored in the memory, and determines whether or not they match each other. If they match, the system control unit 25 sends an OK message to the printer calculator 1. If they do not match, a BAD message is sent.

Next, the IC card 8 sent to the card user by the card issuing company and the verification number IPI sent by separate mail.
The operation when setting the personal identification number PIN to the IC card 8 in the device of the embodiment based on the information of N will be described with reference to the flowcharts shown in FIGS. 4 and 5.

FIG. 4 shows a flowchart in the printer calculator 1 with a terminal, and FIG. 5 shows a flowchart in the IC card 8. First, in step A1, the IC card One end of the card 8 is inserted to establish an electrical connection between the connection terminal 20 on the terminal side and the connection terminal 21 on the card side. Next, proceed to step A2, and input the verification number IPIN sent from the card company via separate mail from the IC card 8 to the keyboard 2.
Enter it at . Then, in step A3, the above IPIN
The data is sent to the IC card 8 side via the interface section 19 and the connection terminal 20.

Then, in step B1, the IC card 8 side receives the verification number IPIN data sent from the terminal side, and temporarily stores it in the password information holding RAM 30. After this, proceed to step B2, and check this verification number IPI.
N and the reference number stored in advance in the IPIN memory 28 (
IPIN) are compared and verified by the comparison unit 31, and it is determined whether or not they match. This step B2
The result is Y (Yes), that is, the above verification numbers match [IPIN-(IPIN)], and this IC card 8
If it is determined that the person who owns the card is an authorized card owner, the process proceeds to step B3, and the system control section 25 on the card side transmits an OK message via the interface section 22. Then, the terminal side receives a message signal from the card side in step A4, and determines whether the message signal is an OK message in step A5. Y (Yes) in this step A5
If it is determined that this is the case, the process proceeds to step 80, where the cardholder uses the keyboard 2 to input the personal identification number PIN arbitrarily set by the cardholder. Thereafter, the process proceeds to step A7, in which the password PIN entered as described above is transmitted to the card side, and in step 88, the specified data X read from the IC card 8 and the password PIN are transferred to the password information memory 12. is memorized. Accordingly, the card side receives the personal identification number PIN input at the terminal side in step B4, and stores the received personal identification number in the PIN memory 29 in step B5. This allows the PIN to be hidden from anyone other than the cardholder.
The information is now registered in the IC card 8 and can be used.

After this, in the same way, connect to multiple IC cards of other types.
Each time you register the IN settings, data unique to each card
, X3, ... and the PIN number PIN2. PIN3.
... will be written sequentially.

On the other hand, if N (No) is determined in step B2, that is, the verification number (IPIN) registered in advance on the card side does not match the verification number IPIN input from the terminal side, the process proceeds to step B6, and the verification number (IPIN> registered in advance on the card side) does not match. The system control unit 25 transmits a BAD message to the terminal side.

Then, on the terminal side, the determination in step A5 is N (No), and an error determination is made. In this case, it is determined that there is a key human error in step A2 or that the IC card 8 itself is not compatible with this terminal, and step A1 or A2 is executed again.
Perform the operations from

Next, enter the PIN number in Figures 4 and 5 above.
The PIN reading operation in the case where, for example, the card owner forgets his or her personal identification number PIN while using the IC card 8 after setting will be explained with reference to the flowcharts shown in FIGS. 6 and 7. .

The sixth factor shows a flowchart in the printer calculator 1 with a terminal, and FIG. One end of the IC card 8 whose PIN number has been forgotten is inserted, and the respective connection terminals 20 and 21 are electrically connected. Then, in the IC card 8, as shown in step D1, this card-specific data X is taken out from the IC card specification data memory 27 according to the program stored in the system ROM 24, and is transmitted as data for specifying the card. be done. Then, on the terminal side, step C2
As shown in , the identification data from the card side is received, and the process proceeds to step C3. In this step C3, based on the specified data Recognize and specify as corresponding. After this,
Proceeding to step C4, the pin number PINI specified in step C3 is retrieved from the pin information memory 12 and the IC
Send to card 8. Then, on the card side, step D
2, the personal identification number PIN sent from the terminal side is received and temporarily stored and held in the personal identification information holding RAM 30. Then, the process proceeds to step D3, in which the comparison unit 31 compares and matches the PIN held in the RAM 30 after the above reception with the PIN already set and registered in the PIN memory 29. In this step D3, Y(
Yes), that is, the above PIN numbers match [PIN-
(PIN), and if it is determined that this card 8 does indeed correspond to the terminal-equipped printer/calculator 1 currently connected, the system control unit 25 sends an OK message in step D4. .

Then, the terminal side receives the message signal from the card side in step C5, and determines in step C6 whether or not the message signal is an OK message. In this step C6, Y (Yes),
In other words, if the message signal from the card side is an OK signal and it is determined that the currently connected IC card 8 is indeed the one whose PIN has been set and registered by this terminal 1, the process advances to step C7, and the step described above The personal identification number PIN1 specified in C3 is retrieved from the personal identification information memory 12 according to the designation of the system control section 16, and is displayed on the display section 3 via the display control section 17. In this case, the PINl of the IC card 8 displayed on the display section 3 is displayed only for a relatively short period of time (for example, 5 seconds) and then disappears, so that the card holder is not known to any other person. You can know the PIN of your IC card 8 without any trouble,
This card can be used normally again.

After that, the process proceeds to step C8, in which the system control unit 16 and calculation control unit 14 determine which of the switching positions 1 and 2.3 the changeover switch 9 is currently set to, and determines that the switch position is 1. Step C
Proceed to step 9. In this step C9, other PINs other than the PIN number PIN1 already displayed in step C7 above are entered.
N data (in this case PIN2.PIN3..),
As shown in step D5, the IC card is taken out from the card side and displayed on the display section 3, so that even if the card holder forgets the card PIN number other than the IC card 8, for example, the IC card 8 can be removed immediately. It is possible to confirm. If it is determined in step C8 that the switch position is 2, the process proceeds to step C10, and the terminal 1 retrieves the balance data in the passbook memory 26 in the IC card 8 and displays it in step D5 in the same manner as described above. Display on 3. This allows the cardholder to check not only the forgotten PIN but also the bankbook balance. Furthermore, in step C8 above,
If it is determined that the switch position is 3, step C above is performed.
Various data in the card as shown in 9 and C10 are taken out from the card side in step D5 and are sequentially printed by the printing unit 4 via the printing control unit 18. Thereby, it is also possible to print and confirm the above-mentioned passbook data.

On the other hand, N (No) in step D3 on the card side.
, that is, P sent from the terminal side in step C4
If the IN does not match the PIN already set and registered in the card, and it is determined that this IC card 8 is not compatible with the above printer calculator with terminal 1,
Proceeding to step D6, the system control unit 24 on the card side transmits a BAD message to the terminal side.

Then, in step C6 on the terminal 1 side, N(N
o), that is, the IC card 8 is determined to be a card for which the PIN has not been registered by the terminal 1, and the 70-chart for confirming the PIN information is in an error determination state. In this case, there is a very high possibility that the IC card 8 was stolen somewhere, and the various data such as the password information and other passbook data in the terminal will not be displayed or printed at all. . As a result, an unauthorized card holder will never know the contents of the card.

Therefore, if the true cardholder owns the PIN @P
Even if you forget your PIN, you can check your PIN again without letting anyone know.

In this case, for example, with respect to a stolen IC card, unless the terminal corresponding to the card is also stolen, the contents of the card will not be known, and unauthorized use will be prevented.

The terminal-equipped printer calculator 1 in the above embodiment may be managed either by the cardholder himself or by the card issuing company, etc.; however, in the case of the latter management by the card issuing company, etc., the terminal-equipped printer calculator 1 The customer will have to go to the credit card company and set the PIN or confirm the PIN as described above. In this case, the terminal 1 is naturally installed at the counter of the card company.

Furthermore, it goes without saying that the terminal 1 in the above embodiment can normally be used as a printer/calculator, as shown in FIG.

[Effects of the Invention] As described above, according to the present invention, the password information is stored in the device in advance at the same time as the password information is written to the IC card, and the password information is stored in the device in advance using a unique signal from the IC card that is connected later. The type of card is recognized, and the pre-stored password information corresponding to this specific IC card is compared and verified with the stored password information of the specific IC card itself. I configured it so that when the information matches, the PIN information can be output and confirmed.
For example, if a cardholder forgets his or her PIN, the PIN information stored inside the card can be reconfirmed, and an unauthorized holder of the card can also be informed of the card's contents. IC that is extremely difficult to
We can provide a card PIN information confirmation device.

[Brief explanation of the drawing]

FIG. 1 is an external configuration diagram showing an IC card PIN information confirmation device according to an embodiment of the present invention, FIG. 2 is a circuit configuration diagram of a printer calculator with a terminal in the IC card PIN information confirmation device, and FIG. 3 is a circuit configuration diagram showing an IC card in the IC card PIN information confirmation device, and FIGS. 4 and 5 are respectively operations of the terminal side and card side when setting the PIN number by the IC card PIN information confirmation device. 6 and 7 are flowcharts showing the PIN number PINI! by the IC card PIN information confirmation device, respectively. i! l! 12 is a flowchart showing operations on the terminal side and card side during the process. 1... Printer calculator with terminal, 2... Keyboard, 3... Display section, 6... PIN key, 7... Card insertion slot, 8... IC card, 11.23... Pass line, 12...Password information memory, 19.22...
・Interface part, 20.21... Connection terminal, 2
7...IC card specific data memory, 29...P
IN memory, 30...RAM for holding password information, 31.
...Comparison section.

Claims (1)

[Claims] In an IC card PIN information confirmation device that stores IC card PIN information in advance, there is a means for inputting a signal specific to the IC card to be connected to recognize the type of the card, and a means for recognizing the type of the IC card identified by the card recognition means. means for comparing and collating the corresponding pre-stored password information and the password information stored in the specific IC card itself, and outputting the password information when it is determined by the comparing means that the mutual password information matches each other; 1. An IC card PIN information confirmation device, characterized in that it comprises means for: