JPH0780378B2 - Plate-shaped storage medium for personal authentication - Google Patents

Description

TECHNICAL FIELD The present invention relates to a plate-shaped storage medium suitable for personal authentication such as a credit card.

(Prior Art) A plate-shaped storage medium such as an IC card used for personal authentication such as a credit card or a cash card stores a personal identification code known only to the owner in a storage means built in the main body, At the time of use, this is attached to a read / write device, and it is used to determine whether or not the user is the original person based on whether or not the same personal identification code is input from the key board of the device.

Such a plate-shaped storage medium is not only used as a tool for personal authentication, but is also equipped with an electrically rewritable semiconductor storage circuit (hereinafter referred to as EEPROM) to store a large amount of personal data. It has a great feature that it can be stored.

However, in such a plate-shaped storage medium, the secret code contained in the plate-shaped storage medium can be read without any particular difficulty according to the expert of the way, and only if it can be illegally used by another person. However, if the owner forgets the PIN code, the owner will be unable to use it.

(Purpose) The present invention has been made in view of such a problem, and an object of the present invention is to divide a plate-shaped storage medium into a recombinable state, thereby preventing unauthorized use and providing a personal identification code. To provide a novel plate-shaped storage medium that eliminates the need for storage.

(Structure) Therefore, details of the present invention will be described below based on illustrated embodiments.

FIG. 1 shows an embodiment of the present invention, in which reference numeral 1 is one half of a substrate of a plate-shaped storage medium divided into two, and an IC card reading / writing device is provided on the surface. The contact pins 2a to 2h, which are electrically connected to the contact head of FIG. 2 and are connected to a signal processing circuit described later, are arranged, and the split surface 1a is electrically connected to the other half body 4 at the same time mechanically. Also, the connector member 3 that also engages is attached. Reference numeral 4 denotes the other half described above, which accommodates at least a secret code storage means storing a secret code, and which is electrically and mechanically connected and engaged with the half 1 on the dividing surface 4a. The connector member 5 is attached.

FIG. 2 shows an embodiment of the signal processing circuit housed in the above-mentioned plate-shaped storage medium. In the figure, reference numeral 10 is a data management unit housed in one half of the contact pin 2.
CPU11 that receives clock signal and reset signal from a and 2b,
It consists of a serial / parallel communication interface 14 that receives I / O signals and timing signals from ROM12, RAM13, and contact pins 2c and 2d.
When the connector 3 and the first password storing means 20 are connected via the, and the half body 4 described later is connected, and the passwords stored in the two storing means 20, 40 match. , Is programmed so that the data in the data storage unit 30 described later can be read. The above 30 is
The data storage unit includes an EEPROM 31 and an EEPROM control circuit 32, and is configured to be writable when a bias voltage is applied to the contact pin 2e. Reference numeral 40 denotes a second secret code storage means accommodated in the other half body 4, and a data management unit of the half body 1 via a connector 5 provided in the half body 4.
It is configured to exchange data with 10.

Note that reference numerals 2f and 2h in the drawing respectively denote contact pins connected to the power supply terminal and the ground terminal of the external device.

In this embodiment, when the two half bodies 1 and 4 are integrally connected via the connectors 3 and 5 (FIG. 3), the second personal identification code storage means 40 is connected via the connectors 3 and 5. It is electrically connected to the data management unit 10. When mounted in the IC card reader / writer A in this state (3rd
(Fig.), An operating voltage is supplied to each circuit section of the plate-shaped storage medium via the connector pin 2f, and the data management section 10 includes the first secret code storage means 20 housed in the half body 1 and the other half. Body 4
The personal identification codes are read out from the second personal identification code storage means 40 accommodated in the above, and both are compared. As a result of this comparison, if both the PIN codes match, the data management unit 10 outputs an operation signal to the data storage unit 30 without inputting the PIN code by the owner, and the data of the external device If possible, interact.

On the other hand, if the secret codes stored in the halves 1 and 4 do not match or if the halves are not connected, the data management unit 10 cannot output the operation signal and the data storage It is impossible to exchange data with the section 30.

In this way, the risk of being illegally used can be extremely reduced by separating the two halves and storing them in different places at the end of use.

FIG. 4 shows a second embodiment of the present invention, in which reference numerals 6 and 7 denote half bodies for accommodating signal processing circuits, respectively, so that the pair of half bodies are integrated. The dividing surface is formed in a non-linear form and has a tally structure, and each half body 6,
7 is provided with connector members 8 and 9 for electrically and mechanically connecting the two divided surfaces 6a and 7a. According to this embodiment, the shape of the divided surfaces is made different for each plate-shaped storage medium. By setting it, you do not have to check the PIN code one by one,
The pair of halves can be easily distinguished from each other, which is convenient for handling.

In addition, in the above-described embodiment, the case where only the secret code storage means is accommodated in one half has been described as an example, but the secret code storage means and other means such as the data storage means are accommodated. Of course, the same effect can be obtained by, in short, accommodating the means for storing the two pairs of personal identification codes in separate halves.

Further, in the above-described embodiments, the example in which the power source battery is not incorporated has been described, but it goes without saying that the same effect can be obtained even in the case where the battery is included.

Further, in the above-described embodiment, the connector is arranged in the cross section of the half body, but it goes without saying that the same effect can be obtained even if the connector is provided on the surface or side surface of the half body.

(Effects) As described above, in the present invention, the base body forming the plate-shaped storage medium is divided into a plurality of halves so that they can be joined by the connector, and one of the halves stores the first secret code code. And the second PIN code storage means in the other half and when the one half is joined via the connector, it is determined whether the PIN codes in the first and second PIN code storage means coincide with each other. However, since the data management means that enables the exchange of data with external devices when they match is stored, when not in use, they can be divided into two halves and stored in different locations, so that they can be stolen. Not only can unauthorized use be prevented, but even if you forget the PIN code, you can use it by joining the paired halves together, even for elderly people who can not handle credit cards etc. It becomes possible to open the way of use.

[Brief description of drawings]

FIG. 1 is a perspective view of an apparatus showing an embodiment of the present invention, FIG. 2 is a block diagram showing an embodiment of signal processing means in the same apparatus, and FIG. 3 is a perspective view showing a usage state of the same apparatus, And FIG. 4 is a perspective view showing another embodiment of the present invention. 1 ... Half body, 3,5 ... Connector member 4 ... Half body, 6,7 ... Half body 8,9 ... Connector, 10 ... Data management unit 30 ... Data storage unit

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Claims (1)

[Claims] 1. A substrate forming a plate-shaped storage medium is divided into a plurality of halves so that they can be joined by a connector, and one half has a first secret code storing means, and the other half has a first personal identification code storage means. When the second personal identification code storage means is joined to the one half through the connector, it is determined whether the personal identification codes of the first and second personal identification code storage means match, and if they match, the external device A plate-shaped storage medium for personal authentication, which contains a data management means for enabling the exchange of data with the.