JP2000194774A - Electronic seal impression device, reader unit and electronic seal impression system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make invalid a will indication caused by a false sealing action using a substitutive seal impression, etc., by exactly and speedily discriminating legality to the sealing of a seal impression. SOLUTION: Electronic certification data 18 peculiarly allocated for each electronic seal impression device are stored in a memory 13 of an electronic seal impression devices 1 and the electronic certification data 18 are read out of the memory 13 of the electronic seal impression device 1 by a dedicated reader terminal 55. Then, the electronic certification data 18 are compared with valid electronic certification data provided from a certification institute and the validity of will indication caused by soiling of the electronic seal impression device 1 is judged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic seal stamp apparatus for digitizing a signature / authentication using a seal stamp, a reader for the electronic seal stamp apparatus, and an electronic seal stamp system.

[0002]

2. Description of the Related Art In various declarations and transactions in Japan, it is customary to indicate the intention of the parties concerned, etc. by stamping a seal on a document. However, in such an intention display by stamping a seal, for example, false stamping with a substitute seal or the like is likely to be performed, which is a source of many troubles.

[0003] In spite of these problems, transactions using the Internet have become popular in recent years, and when a product is handed to a purchaser, an approval display for receiving the product by a seal is also performed. Therefore, there is an increasing demand for invalidating the intention of false stamping by a substitute seal or the like or preventing the false stamping itself.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to solve such a problem, and it is possible to accurately and promptly judge the validity of a seal stamp for imprinting and to perform a false stamping operation using an alternative seal stamp or the like. It is an object of the present invention to provide an electronic seal stamp device, a reader device, and an electronic seal stamp system that can invalidate an intention display and greatly improve the reliability of a transaction using a seal.

[0005]

In order to achieve the above object, an electronic seal stamp device according to a first aspect of the present invention stores a seal stamp portion having a function as a seal stamp and authentication data uniquely assigned to each device. And a communication unit for wirelessly transmitting the authentication data stored in the storage unit to the outside when the seal unit is stamped.

According to a second aspect of the present invention, there is provided an electronic seal stamp device having a function as a seal stamp, communication means for communicating with the outside by radio at the time of stamping of the seal stamp part, and data transmitted externally through the communication means. Signature adding means for adding signature data unique to each of the present apparatuses.

In order to achieve the above object, a reader device according to a third aspect of the present invention comprises a seal unit having a function as a seal, and a storage unit storing authentication data uniquely assigned to each device. A stamping stand on which a document to be stamped by a stamping section of the electronic stamping device is placed, and a stamp of the electronic stamping device on a document placed on the stamping table. A reading unit for reading the authentication data stored in the storage unit of the electronic seal stamp device at the time of stamping by the unit; and an authentication data storage unit for storing the authentication data read by the reading unit. It is.

The reader device according to another aspect of the present invention is the reader device according to the third aspect of the present invention, wherein the registration means in which valid authentication data is registered, the authentication data stored in the authentication data storage means, and the registration data registered in the registration means. Further, means for collating with the authentication data obtained is further added.

A reader device according to another aspect of the present invention is the reader device according to the third aspect of the present invention, further comprising means for outputting the authentication data stored in the authentication data storage means to the outside.

Further, a reader device according to a fourth aspect of the present invention is a seal stamp section having a function as a seal stamp, communication means for communicating with the outside by radio at the time of stamping of the seal stamp section, and data transmitted externally through the communication means. A signature adding means for adding signature data unique to each of the present devices, and a stamping stand on which a document to be stamped by a stamping section of the electronic seal stamping device is placed; Receiving means for receiving data with a signature transmitted from the electronic seal stamp apparatus at the time of imprinting on a document placed on a stamping stand by the seal stamp unit of the electronic seal stamp apparatus, and the signature-added data received by the receiving means. Data storage means for storing data.

The reader device according to another aspect of the present invention is the reader device according to the fourth aspect of the present invention, wherein the registration unit in which valid signature data is registered, and the signature data added to the data stored by the signed data storage unit. The apparatus further comprises means for checking the signature data registered in the registration means.

A reader device according to another aspect of the present invention is the reader device according to the fourth aspect of the present invention, further comprising means for outputting the signed data stored in the signed data storage means to the outside.

Still further, a fifth invention is an electronic seal stamp system having an electronic seal stamp device and a reader device, wherein the electronic seal stamp device includes a seal stamp portion having a function as a seal stamp, and a unique device for each of the devices. A storage unit in which the assigned authentication data is stored, wherein the reader device is mounted on a stamping stand on which a document to be stamped by the seal stamping unit of the electronic seal stamping device is placed; and A reading unit that reads the authentication data stored in the storage unit of the electronic seal stamp device when the document is stamped by the seal stamp unit of the electronic seal stamp device; and a unit that stores the authentication data read by the reading device. It has.

According to a sixth aspect of the present invention, there is provided an electronic seal stamp system having an electronic seal stamp device and a reader device, wherein the electronic seal stamp device includes a seal stamp portion having a function as a seal stamp, and Communication means for communicating with the outside by wireless; and signature adding means for adding signature data unique to each device to data transmitted externally through the communication means, wherein the reader device is provided with the electronic seal stamp device. A stamping table on which a document to be stamped by the stamping section is placed, and data with a signature transmitted from the electronic stamping apparatus when the document placed on the stamping table is stamped by the stamping section of the electronic stamping apparatus. A receiving unit for receiving the data; and a unit for storing the data with the signature received by the receiving unit.

According to the present invention configured as described above,
Based on the authentication data read by the reader device from the electronic seal stamp device, the validity of the intention display by stamping of the electronic seal stamp device can be determined. Can be disabled.

Further, according to the present invention, the data with a signature is transmitted from the electronic seal stamp device to the reader device, so that the intention display and the output data by the seal of the electronic seal stamp device are performed based on the signature data. Can be determined together.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the appearance of an electronic seal stamp device according to an embodiment of the present invention. As shown in the figure, the electronic seal stamp device 1 is provided with a stamp face 3 in which, for example, first and last names are engraved in an uneven pattern at one end of a cylindrical main body 2.
The shape of the main body 2 is not limited to a cylindrical shape, and may be a prismatic shape or any other shape. As shown in FIG. 2, a communication function including a coil antenna 11, a CPU 12, a nonvolatile memory 13, a volatile memory 14, a power line 15, a data line 16, and the like is incorporated in the main body 2 of the electronic seal stamp device 1. Have been.

The coil antenna 11 exchanges radio signals with an external dedicated reader terminal,
Power is supplied by electromagnetic induction through communication with a dedicated reader terminal. The electric power induced in the coil antenna 11 with the reception of the signal from the dedicated reader terminal is converted into a constant voltage by a stabilizing circuit (not shown) and transmitted to each unit through the power line 15. The nonvolatile memory 13 includes a control program executed by the CPU 12, various constant data, and electronic authentication data 18 uniquely assigned to each electronic seal stamp device.
Etc. are stored. The volatile memory 14 is the CPU 12
Is used as a work area of the computer or a temporary storage area of various information. The CPU 12 exchanges various data with each unit through the data line 16 and performs control for performing wireless communication with the dedicated reader terminal and various arithmetic processes in accordance with the control program.

FIG. 3 is a flowchart showing a processing procedure of the present electronic seal stamp apparatus.

Transmission (feeding) from the dedicated reader terminal to the electronic seal stamp apparatus 1 is started (step 301), and when the internal power supply voltage reaches a predetermined level (step 302), the CP
U12 initializes the internal state of the CPU 12 and the volatile memory 14 according to the program stored in the nonvolatile memory 13 (Step 303). Thereafter, the electronic seal stamp device 1 enters a state of waiting for a command from the dedicated reader terminal (step 304). CPU 12 is a coil antenna 11
When a command from the dedicated reader terminal is received via the data line (step 305), the received command is written to the non-volatile memory 14 via the data line 16, and a process corresponding to the received command is executed in accordance with the program stored in the non-volatile memory 13. (Step 306).

If the received command is a command for extracting electronic authentication data, the CPU 12 reads the electronic authentication data from the nonvolatile memory 13 and stores the read electronic authentication data in the volatile memory 14 as a processing result. Write. Thereafter, the CPU 12 reads the electronic authentication data from the volatile memory 14, modulates the data into a signal suitable for wireless communication by a modulation circuit (not shown), and transmits the modulated signal to the dedicated reader terminal through the coil antenna 11. (Step 307). After sending the electronic authentication data,
The process waits for a command again (step 304).

When the transmission from the dedicated reader terminal is completed,
When the internal power supply voltage of the electronic seal stamp device 1 becomes lower than a predetermined level, the electronic seal stamp device 1 is turned off.
State. Also, in order to prevent the destruction of the internal circuit even when the internal power supply voltage becomes abnormally high,
Is turned off.

Next, a dedicated reader terminal used in combination with the above-mentioned electronic seal stamp device will be described.

FIG. 4 shows the appearance of the dedicated reader terminal 55. FIG. 1A is a plan view of the dedicated reader terminal, and FIG. 1B is a side view.

As shown in FIG.
Reference numeral 5 denotes a non-contact unit serving as a transmitting / receiving unit for wirelessly exchanging signals with a terminal main body 32 having a voucher table 31 on which a voucher S such as a delivery note is placed on the upper surface and a coil antenna 11 provided in the electronic seal stamp device 1. An interface unit 34 and a connector 35 for connecting a cable to a host device such as a computer are provided. The non-contact interface section 34 is provided so as to protrude from the voucher table 31 of the terminal main body 32 and has a window section 30 into which the electronic seal stamp device 1 can be inserted. The window 30 of the non-contact interface unit 34 faces a predetermined stamp position on the slip S placed on the slip table 31 of the terminal main body 32, and the electronic seal stamp device 1 is inserted into the window 30. Thus, the stamp surface 2 of the electronic seal stamp device 1 is brought into contact with a predetermined stamp position on the document S.

FIG. 5 is a block diagram showing the internal structure of the dedicated reader terminal 55. As shown in the figure, the dedicated reader terminal 55 includes the above-described non-contact interface unit 34, a microprocessor unit (MPU) 36 for controlling the dedicated reader terminal 55, and the electronic seal stamp device 1
37 for storing electronic authentication data and the like transmitted from
, An interface circuit 39 for connecting the non-contact interface section 34 to the system bus 38, a battery 40, and a power line 41.

In the dedicated reader terminal 55, data such as electronic authentication data transmitted from the electronic seal stamp device 1 is received by the non-contact interface unit 34 and transmitted to the memory 37 via the interface circuit 39 and the system bus 38. Is written and held here. The data held in the memory 37 is read out with the host device connected to the connector 35 via a cable, and is transferred to the host device via the connector 35 and the cable.

Next, an example of an authentication system using the electronic seal stamp device 1 and the dedicated reader terminal 55 will be described.

FIG. 6 is a diagram showing an outline of a system for providing a bank teller service.

In the same figure, reference numeral 51 denotes a user 53 who uses the electronic seal stamp device 1 on which electronically recognized electronic authentication data is recorded.
It is a certification body issued to When the user 53 having the electronic seal stamp device 1 issued by the certification organization 51 submits, for example, a document for opening an account at a bank window, a dedicated reader connected to a computer terminal 54 at the bank window by a cable. The electronic seal stamp device 1 is inserted into the window 30 of the non-contact interface unit 34 of the terminal 55 and stamped on a document.
At this time, the dedicated reader terminal 55 reads the electronic authentication data.

The electronic authentication data read by the dedicated reader terminal 55 is transmitted to the computer terminal 54 at the bank counter, and further transmitted from the computer terminal 54 at the bank counter to the computer 57 at the center through a dedicated communication line. When the computer 57 of the center receives the electronic authentication data from the computer terminal 54 at the bank counter,
The request for confirmation of the electronic authentication data is sent to the authentication organization 51 through the dedicated communication line.

The certification authority 51, which has received the request for confirmation of the electronic authentication data, confirms that the electronic authentication data has been issued by itself and has not been falsified. Is returned to the computer 57 of the center. In addition, the center computer 5
7 notifies the computer terminal 54 at the bank counter of the success of the authentication.

When the computer terminal 54 at the bank counter receives the notification of successful authentication, the computer terminal 54 checks whether or not the information on the document submitted by the user 53 matches the content of the electronic authentication data. Is confirmed to be the user himself / herself as declared, and the service is provided to the user 53.

As described above, the electronic authentication data recorded in the electronic seal stamp device 1 is read out by the dedicated reader terminal 55 by the act of the user 53 sealing the document with the electronic seal stamp device 1, and the computer terminal at the bank counter is used. 54, transmitted to the certification organization 51 through the computer 57 of the center, where the authentication is performed, and the authentication result is returned to the computer terminal 54 of the bank counter. And security can be improved.

FIG. 7 is a diagram showing a case where another authentication system using the above-described electronic seal stamp device 1 and the dedicated reader terminal 55 is applied to a delivery system.

In the figure, a certification organization 51 issues an electronic seal stamp device 1 in which electronic authentication data that has been officially recognized is recorded to a customer (recipient) 53. 61 is an article seller, 6
Reference numeral 2 denotes a delivery company that delivers the goods in response to a request from the goods seller 61, and reference numeral 63 denotes a delivery person and a delivery vehicle that actually deliver the goods to the customer 53. An in-vehicle computer 64 is loaded on the delivery vehicle 63, and the delivery person 63 carries a dedicated reader terminal 55 connectable to the in-vehicle computer 64 by a cable.

The computer 65 of the delivery company 62 requests the authentication organization 51 to transfer the electronic authentication data of the customer 53, and sends the electronic authentication data transferred from the authentication organization 51 to the computer 64 mounted on the delivery vehicle 63 by radio. Send.
The delivery company 62 also wirelessly transmits delivery destination information such as the customer's address, name, and telephone number to the on-board computer 64 of the delivery vehicle 63 by wireless. After registering the received electronic authentication data and the like, the in-vehicle computer 64 connects the dedicated reader terminal 55 to the in-vehicle computer 64 with a cable, and transfers and records the electronic authentication data to the dedicated reader terminal 55.

The delivery person 63 delivers the goods to the customer 53 with the dedicated reader terminal 55 holding the electronic authentication data.
At this time, the electronic seal stamp device 1 of the customer 53 seals the slip on the dedicated reader terminal 55. At this time, reading of the electronic authentication data from the electronic seal stamp device 1 by the dedicated reader terminal 55 is performed.

The electronic authentication data read by the dedicated reader terminal 55 is collated on the spot with the electronic authentication data already stored in the dedicated reader terminal 55 (given by the certification authority 51), and the result of this collation It is confirmed whether the recipient of the article is the correct customer (recipient) 53. Here, if the electronic authentication data do not match, the delivery person 6 is notified that the delivery partner of the article is not the correct partner by, for example, displaying an LED or the like, sounding a buzzer or the like.
3 is shown. The result of the collation is registered in the memory 37 in the dedicated reader terminal 55 as an authentication result. After delivery is completed,
The delivery person 63 transfers the authentication result registered in the dedicated reader terminal 55 to the in-vehicle computer 64. Upon receiving the authentication result, the on-board computer 64 wirelessly transmits the authentication result together with the delivery completion data to the computer 65 of the delivery company 62.

The authentication result and the delivery completion data are also transferred from the computer 65 of the delivery company 62 to the article sales company 61 in real time. This allows the delivery company 62 and the goods seller 61 to know the status of delivery every moment,
In addition, it is possible to provide a detailed service, for example, it is possible to notify the customer 53 of a detailed scheduled time of arrival of an article. Further, by managing the electronic authentication data of the customer 53 together with the delivery completion data, for example, by the computer 65 of the delivery company 62, it becomes easy to deal with troubles such as erroneous transmission and complaints from the customer 53.

Next, another embodiment of the electronic seal stamp device according to the present invention will be described.

As shown in FIG. 8, a coil antenna 111, a CPU 11
2, nonvolatile memory 113, volatile memory 114,
A communication function including a power line 115 and a data line 116 is incorporated.

The coil antenna 111 exchanges radio signals with an external dedicated reader terminal, and receives power supply by electromagnetic induction through communication with the dedicated reader terminal. The electric power induced in the coil antenna 111 with the reception of the signal from the dedicated reader terminal is converted into a constant voltage by a stabilizing circuit (not shown) and transmitted to each unit through the power line 115. The non-volatile memory 113 has a CPU 112
, A control program executed by the program, constant data, and the like are stored. In addition, the control program stored in the non-volatile memory 113 includes, in the data output from the electronic seal stamp device, information (certifying electronic data) for certifying that the data is data output from the electronic seal stamp device. signature)
The function 118 is added. Volatile memory 1
Reference numeral 14 is used as a work area for the CPU 112 and a temporary storage area for various information. The CPU 112 is connected to the data line 116
Various kinds of data are exchanged with each unit through the control unit, and control for performing wireless communication with the dedicated reader terminal and various arithmetic processes are performed in accordance with the control program.

FIG. 9 is a flowchart showing a processing procedure of the present electronic seal stamp apparatus.

Transmission (power supply) from the dedicated reader terminal to the electronic seal stamp apparatus is started (step 901), and when the internal power supply voltage reaches a predetermined level (step 902), C
The PU 112 stores the internal state of the CPU 112 and the volatile memory 1 according to a program stored in the nonvolatile memory 113.
14 is initialized (step 903). Thereafter, the electronic seal stamp apparatus enters a state of waiting for a command from the dedicated reader terminal (step 904). Upon receiving a command from the dedicated reader terminal via the coil antenna 111 (step 905), the CPU 112 writes the received command to the nonvolatile memory 114 via the data line 116,
A process corresponding to the received command is executed according to a program stored in the nonvolatile memory 113 (step 90).
6).

Here, the received command is a command for extracting internal data (for example, personal data) of the electronic seal stamp device, an instruction given from a dedicated reader terminal, and extracting an arithmetic processing result according to the data and the internal data. If it is a command, the CPU 112 executes the received command and writes the resulting data to the volatile memory 114 (step 906). Subsequently, the CPU 112 adds information (electronic signature) for proving that the data is data output from the electronic seal stamp apparatus (step 90).
7) After that, the CPU 112 reads out the data to which the electronic signature has been added from the volatile memory 114, modulates the data with a modulation circuit (not shown) into a signal suitable for wireless communication, and converts the modulated signal into a coil antenna. The data is transmitted to the dedicated reader terminal through 111 (step 908). After the data is transmitted, the process waits for a command again (step 90).
4).

When the transmission from the dedicated reader terminal is completed,
When the internal power supply voltage of the electronic seal stamp device falls below a predetermined level, the operation of the electronic seal stamp device is turned off. In addition, even when the internal power supply voltage becomes abnormally high, the electronic seal stamp device is in an operation OFF state in order to prevent the destruction of the internal circuit.

The certification authority manages the user's electronic signature, and compares the electronic signature added to the output data from the electronic seal stamp device with the electronic signature managed by the certification authority to determine whether the signature is identical. Then, the output data of the electronic seal stamp device is treated as valid data. Further, a valid electronic signature given by the certification organization is transferred to the dedicated reader terminal and registered, and the dedicated reader terminal is added to the data output from the electronic seal stamp device when updating with the electronic seal stamp device. The electronic signature may be collated with a valid electronic signature given by a certification authority, and the collation result may be displayed on the spot to the user of the dedicated reader terminal.

In this manner, false stamping using the alternative seal and the duplicated data can be invalidated, and the reliability of the transaction using the seal can be greatly improved.

Next, still another embodiment of the electronic seal stamp device according to the present invention will be described.

The electronic seal stamp device shown in FIG.
2. The power supply to the internal circuits such as the nonvolatile memory 213 and the volatile memory 214 is performed not by the coil antenna but by the battery 81 mounted on the electronic seal stamp device.

As shown in FIGS. 11 and 12,
Power may be supplied from the dedicated reader terminal 91 to the electronic seal stamp device 101 through contact between power supply terminals 92 and 102 provided on the dedicated reader terminal 91 and the electronic seal stamp device 101, respectively. As shown in FIG. 11, the power supply terminal 102 of the electronic seal stamp device 101 is provided on a part of the peripheral surface of the electronic seal stamp device main body so as to slightly protrude from the peripheral surface or be slightly depressed. When the electronic seal stamp device 101 is inserted into the window 135 of the non-contact interface unit 134 of the dedicated reader terminal 91, the power supply terminal 92 provided on the inner wall surface of the window 135 so as to be displaceable and the power supply terminal of the electronic seal stamp device 101 And 102 are in contact with and fitted to each other. At this time, the power supply terminal 92 of the dedicated reader terminal 91 is displaced by being pressed by the power supply terminal 102 of the electronic seal stamp device 101.

FIG. 13 shows the internal configuration of the dedicated reader terminal 91 of this example. As shown in the figure, when the power supply terminal 92 of the dedicated reader terminal 91 is pressed by the power supply terminal 102 of the electronic seal stamp device 101, the switch 121 is turned ON, and the electric power is supplied from the battery 40 to each circuit inside the electronic seal stamp device 101. Power will be supplied.

FIG. 14 shows that power is supplied from the dedicated reader terminal.
An electronic seal stamp device 151 that can switch between / OFF with the electronic seal stamp device itself. The electronic seal stamp device 151 is configured to be able to expand and contract within a predetermined stroke range in the long axis direction. That is, by pressing the head 155 of the main body of the electronic seal stamp device with the stamp 153 as a support, the head 15
5 is displaced by the above stroke.

FIG. 15 shows the internal configuration of the electronic seal stamp device 121 of this embodiment. As shown in the drawing, when the head 155 of the electronic seal stamp device 151 is pressed, the switch 126 is turned on, and power supply from the dedicated reader terminal via the power supply terminal 127 is started. Therefore, in the electronic seal stamp device 121 of this example, the electronic seal stamp device 12
1 is supplied, the consumption of the battery built in the dedicated reader terminal can be suppressed to the minimum necessary.

[0057]

As described above, according to the present invention,
Based on the authentication data read by the reader device from the electronic seal stamp device, the validity of the intention display by stamping of the electronic seal stamp device can be determined. Can be disabled.

Further, according to the present invention, by transmitting data with a signature from the electronic seal stamp device to the reader device, the intention display and output data of the electronic seal stamp device based on the signature data can be performed based on the signature data. Can be determined together.

[Brief description of the drawings]

FIG. 1 is a diagram showing an external appearance of an electronic seal stamp device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an internal configuration of the present electronic seal stamp device of FIG. 1;

FIG. 3 is a flowchart showing an operation procedure of the electronic seal stamp device of FIG. 1;

FIG. 4 is a diagram illustrating an appearance of a dedicated reader terminal according to the embodiment of the present invention.

FIG. 5 is a block diagram showing an internal configuration of the dedicated reader terminal of FIG.

FIG. 6 is a diagram showing an outline of a system for providing a bank counter service using an electronic seal stamp device and a dedicated reader terminal according to an embodiment of the present invention.

FIG. 7 is a diagram showing an outline of a delivery system using an electronic seal stamp device and a dedicated reader terminal according to the embodiment of the present invention.

FIG. 8 is a block diagram showing an internal configuration of an electronic seal stamp device according to another embodiment of the present invention.

9 is a flowchart showing an operation procedure of the electronic seal stamp device of FIG.

FIG. 10 is a block diagram showing an internal configuration of an electronic seal stamp device according to still another embodiment of the present invention.

FIG. 11 is a diagram showing an external appearance of an electronic seal stamp device according to another embodiment of the present invention.

FIG. 12 is a diagram showing an appearance of a dedicated reader terminal according to another embodiment of the present invention.

FIG. 13 is a block diagram showing an internal configuration of the dedicated reader terminal of FIG.

FIG. 14 is a diagram showing an external appearance of an electronic seal stamp device according to still another embodiment of the present invention.

FIG. 15 is a block diagram showing an internal configuration of the electronic seal stamp device of FIG. 14;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic seal stamp 3 Seal surface 11 Coil antenna 12 CPU 13 Non-volatile memory 14 Volatile memory 15 Power line 16 Data line 18 Electronic authentication data 31 Slip board 34 Non-contact interface unit 35 Connector 36 Microprocessor unit (MPU) 37 Memory 39 Interface circuit 55 Dedicated reader terminal

Claims (12)

[Claims] 1. A seal unit having a function as a seal, a storage unit storing authentication data uniquely assigned to each device, and an authentication data stored in the storage unit when the seal unit is stamped. An electronic seal stamp device, comprising: a communication unit for transmitting to the outside by radio. 2. A seal unit having a function as a seal, a communication unit for performing wireless communication with the outside when the seal unit is stamped, and a signature data unique to each of the devices to data transmitted externally through the communication unit. An electronic seal stamp device, comprising: a signature adding unit for adding a signature. 3. The electronic device according to claim 1, wherein the communication unit includes a coil antenna that receives a signal from the outside and receives power supplied from the received signal to the power consumed inside the device. Seal device. 4. The electronic seal stamp device according to claim 1, further comprising means for switching on / off of external power supply in conjunction with the stamping operation of the seal stamp unit. 5. A reader device of an electronic seal stamp device, comprising: a seal stamp unit having a function as a seal stamp; and a storage unit in which authentication data uniquely assigned to each device is stored. A stamping table on which a document to be stamped by the stamping section is placed, and wherein the document stored in the storage section of the electronic stamping apparatus is stamped on a document placed on the stamping table by the stamping section of the electronic stamping apparatus. A reader device comprising: reading means for reading authentication data; and authentication data storage means for storing the authentication data read by the reading means. 6. The apparatus according to claim 1, further comprising a registration unit in which valid authentication data is registered, and a unit for comparing the authentication data stored in the authentication data storage unit with the authentication data registered in the registration unit. The reader device according to claim 5. 7. The reader device according to claim 5, further comprising means for outputting the authentication data stored in the authentication data storage means to the outside. 8. A seal unit having a function as a seal, a communication unit for performing wireless communication with the outside when the seal unit is stamped, and a signature data unique to each apparatus for data externally transmitted through the communication unit. A reader for an electronic seal stamp device having a signature adding means for adding a stamp, on which a document to be stamped by the seal stamp unit of the electronic seal stamp is placed; and a document placed on the stamp stand. Receiving means for receiving data with a signature transmitted from the electronic seal stamp device at the time of stamping by the seal stamp portion of the electronic seal stamp device; and signed data storage means for storing the signed data received by the receiving means. A reader device comprising: 9. A registration means in which valid signature data is registered, and means for comparing signature data added to data stored by the signed data storage means with signature data registered in the registration means. The reader device according to claim 7, further comprising: 10. The reader device according to claim 9, further comprising means for outputting the signed data stored in the signed data storage means to the outside. 11. An electronic seal stamp system having an electronic seal stamp device and a reader device, wherein the electronic seal stamp device stores a seal stamp portion having a function as a seal stamp, and authentication data uniquely assigned to each of the devices. The reader device, the stamp device on which a document to be stamped by the seal device of the electronic seal device is placed, and the electronic seal device for the document placed on the stamp device. A reading unit that reads the authentication data stored in the storage unit of the electronic seal stamp device at the time of stamping by the seal stamp unit; and a unit that stores the authentication data read by the reading unit. Electronic seal system. 12. An electronic seal stamp system having an electronic seal stamp device and a reader device, wherein the electronic seal stamp device communicates with a seal stamp unit having a function as a seal stamp and wirelessly communicates with the outside when the seal stamp unit is stamped. And a signature adding unit that adds signature data unique to each device to data transmitted externally through the communication unit, wherein the reader device is stamped by a seal unit of the electronic seal stamp device. A stamping table on which a document to be placed is placed; receiving means for receiving data with a signature transmitted from the electronic stamping apparatus when the document placed on the stamping stand is stamped by a stamping section of the electronic stamping apparatus; Means for storing the data with the signature received by the receiving means.