JP2004070412A - Electronic document system and electronic sealing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic document system capable of ensuring the effectiveness of an electronic seal appropriately. <P>SOLUTION: A user terminal 1 requests an originality certification storage device 4 to assign an original ID when creating document data to add the original ID assigned by the originality certification storage device 4 to the document data. If the electronic seal is impressed on the document data, the user terminal 1 reads a seal impression image from an IC card 2 to create printing data attached with the seal impression image on the basis of the document data. The original ID identical to the document data is added to the printing data. When viewing or printing the printing data, the user terminal 1 confirms the existence of the document data to be coupled and confirms the accordance between the original ID added to the printing data and the original ID added to the document data to determine the originality of the electronic document (the document data and the printing data). <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an electronic document system and an electronic sealing method that can appropriately secure the effectiveness of an electronic seal stamp that is stamped on an electronic document.
[0002]
[Prior art]
2. Description of the Related Art In the past, various paper documents such as a request for approval, an application, and a notice have been used in companies and the like. Then, a person in charge or a manager seals his / her seal on such a paper document, thereby performing a decision making process, an inspection process, or the like.
The transfer of paper documents accompanied by the stamping of such a seal has been traditionally performed not only within a company but also between companies.
[0003]
In recent years, the construction of an in-company network using computers and the spread of the Internet, etc., have led to the exchange of various electronic documents and image data (hereinafter referred to as “electronic documents”) within and between companies. It is being performed on a daily basis.
For example, an electronic signature or an electronic seal is used in a system in which a request for approval, an application, a notice, and the like are created as an electronic document and transmitted and received between terminals (such as a personal computer).
[0004]
First, in a system using an electronic signature, by adding an electronic signature to an electronic document, the creation of an electronic document by a specific user and the approval (decision) of the electronic document by a specific user are proved. I have.
Nevertheless, many companies are hesitant to introduce such digital signatures because they are not explicit or the seals of seals are still customary.
[0005]
On the other hand, in a system using an electronic seal, in a manner similar to stamping a seal on a real paper document, a self-registered seal image is pasted (embedded) in the electronic document, so that a customized operation can be inherited, In addition, compared to digital signatures, they are gradually spreading because they are easy to understand.
[0006]
For example, in an electronic document system capable of imprinting an electronic seal stamp on an electronic document, an imprint image of the electronic seal stamp is registered in a server or the like, and a user inputs an ID and a password from a terminal, reads out the own imprint image, Paste it into the target electronic document.
Then, the user sends the electronic document on which the imprint image is pasted to another terminal or the like, so that the approval process or the inspection process is performed.
[0007]
[Problems to be solved by the invention]
However, the electronic document system using the above-described electronic seal stamp has a problem that the effectiveness of the electronic seal stamp cannot be ensured in the first place.
This is because the electronic document to which the imprint image is to be pasted is easy to copy, and the imprint image itself can be easily copied, so that the copied electronic document is edited or the copied imprint image is copied. This is because there is a danger that this will be pasted on another electronic document and abused.
In addition, a method of pasting (embedding) a seal image into an electronic document generally depends on an application.
[0008]
The present invention has been made in view of the above situation, and has as its object to provide an electronic document system and an electronic seal method that can appropriately secure the effectiveness of an electronic seal stamp that is stamped on an electronic document.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, an electronic document system according to a first aspect of the present invention includes:
Identification information acquiring means for acquiring unique identification information corresponding to the created document data;
Identification information adding means for adding the identification information obtained by the identification information obtaining means to the document data;
A seal instructing means for instructing an electronic seal stamp on the document data to which the identification information is added by the identification information adding means,
In response to an instruction from the seal instructing means, print data on which an imprint image corresponding to the electronic seal stamp is pasted is generated according to the document data, and the identification information adding means adds the generated print data to the document data. Print data generating means for adding the same identification information as the identification information;
It is characterized by having.
[0010]
According to the present invention, the identification information acquiring means acquires unique identification information (for example, an original ID) corresponding to the created document data. The identification information adding unit adds the identification information obtained by the identification information obtaining unit to the document data. The seal instructing unit instructs the document data to which the identification information is added by the identification information adding unit to seal the electronic seal stamp. The print data generating means generates print data on which an imprint image corresponding to the electronic seal stamp is pasted in accordance with the document data in response to an instruction from the seal instructing means. The same identification information as the identification information added to the data is added. As described above, the same original ID is added to the document data and the print data, so that the existence of the document data and the coincidence between the original IDs can be confirmed when the print data is printed. As a result, the effectiveness of the electronic seal stamp stamped on the electronic document can be appropriately secured.
[0011]
The electronic document system further includes a document data updating unit that updates the content of the document data to which the identification information has been added by the identification information adding unit,
The identification information obtaining means, when the document data is updated by the document data updating means, obtains new identification information,
The identification information adding means may add the new identification information to the document data instead of the existing identification information.
[0012]
The electronic document system further includes a document data copying unit that copies the document data to which the identification information has been added by the identification information adding unit,
When the document data is copied by the document data copying unit, the identification information obtaining unit obtains new identification information,
The identification information adding means may add the new identification information to the document data instead of the existing identification information.
[0013]
The electronic document system includes: a first determination unit configured to determine whether there is document data to which identification information is added by the identification information addition unit corresponding to the print data generated by the print data generation unit;
A second determining unit that determines whether the identification information added to the print data matches the identification information added to the document data when the first determination unit determines the presence of the document data; When,
A printing unit that prints, on a predetermined sheet, the document content on which the imprint image is pasted, according to the print data, when the second determination unit determines that the two pieces of identification information match. Good.
[0014]
To achieve the above object, an electronic document system according to a second aspect of the present invention comprises:
An electronic document system in which a plurality of terminals are connected via a network,
Each terminal is
Document data generating means for generating document data to which a unique original ID for managing the original is added;
A seal instructing means for instructing the electronic seal stamp on the document data;
In response to an instruction from the seal instructing means, print data having an imprint image corresponding to an electronic seal stamp is generated in accordance with the document data, and the same original document ID as the document data is added to the generated print data. Print data generation means;
Data transmission means for transmitting the document data and the print data to another terminal as a set of electronic documents,
It is characterized by the following.
[0015]
According to the present invention, the document data generating means generates document data to which a unique original ID for managing the original is added. The seal instructing means instructs the document data to seal the electronic seal stamp. The print data generating means generates print data, in which an imprint image corresponding to the electronic seal stamp is pasted, in accordance with the document data in response to the instruction from the seal instructing means, and adds the same original ID as the document data to the generated print data. Is added. Then, the data transmitting unit transmits the document data and the print data to another terminal as a set of electronic documents. As described above, the same original ID is added to the document data and the print data, so that the existence of the document data and the coincidence between the original IDs can be confirmed when the print data is printed. As a result, the effectiveness of the electronic seal stamp stamped on the electronic document can be appropriately secured.
[0016]
The electronic document system includes a data receiving unit that receives the document data and the print data sent from another terminal,
First determining means for determining whether or not the document data corresponding to the print data received by the data receiving means exists;
When the presence of the document data is determined by the first determination unit, the identification information added to the print data received by the data reception unit and the identification information added to the document data received by the data reception unit Second determining means for determining a match with the identification information,
When the second discrimination means determines that the two pieces of identification information match each other, the printing means prints, on a predetermined sheet, the document content on which the imprint image is pasted, in accordance with the print data received by the data receiving means. And may be further provided.
[0017]
In order to achieve the above object, an electronic sealing method according to a third aspect of the present invention includes:
An identification information acquisition step of acquiring unique identification information corresponding to the created document data;
An identification information adding step of adding the identification information obtained in the identification information obtaining step to the document data;
In the document information to which the identification information has been added in the identification information addition step, a seal instruction step of instructing the seal of an electronic seal stamp,
In response to the instruction in the stamp instruction step, print data on which an imprint image corresponding to the electronic seal stamp is pasted is generated in accordance with the document data, and the generated print data is added to the document data in the identification information adding step. Print data generating step of adding the same identification information as the identified identification information;
It is characterized by having.
[0018]
According to the present invention, the identification information acquisition step acquires unique identification information (for example, original ID) corresponding to the created document data. The identification information adding step adds the identification information obtained in the identification information obtaining step to the document data. The seal instructing step instructs an electronic seal stamp on the document data to which the identification information has been added in the identification information adding step. The print data generating step generates print data on which the imprint image corresponding to the electronic seal stamp is pasted in accordance with the document data in response to the instruction in the seal instructing step, and adds the generated print data to the identification information adding step. The same identification information as the identification information added to the document data is added. As described above, the same original ID is added to the document data and the print data, so that the existence of the document data and the coincidence between the original IDs can be confirmed when the print data is printed. As a result, the effectiveness of the electronic seal stamp stamped on the electronic document can be appropriately secured.
[0019]
The electronic sealing method further includes a document data updating step of updating the content of the document data to which the identification information is added in the identification information adding step,
The identification information obtaining step, when the document data is updated in the document data updating step, obtains new identification information,
In the identification information adding step, the new identification information may be added to the document data instead of the existing identification information.
[0020]
The electronic sealing method further includes a document data copying step of copying the document data to which the identification information is added in the identification information adding step,
When the document data is copied in the document data copying step, the identification information obtaining means obtains new identification information,
In the identification information adding step, the new identification information may be added to the document data instead of the existing identification information.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
An electronic document system according to an embodiment of the present invention will be described below with reference to the drawings.
[0022]
FIG. 1 is a schematic diagram showing an example of a configuration of an electronic document system applied to an embodiment of the present invention. As shown in the figure, in this system, a plurality of user terminals 1 (IC card 2), a printer 3, and an originality assurance storage device 4 are connected to a LAN (Local Area Network) 9 installed in a company or the like. It is connected and configured through. Each user terminal 1 has an IC card 2 mounted therein.
[0023]
The IC (Integrated Circuit) card 2 is a card-type storage medium in which an IC chip is embedded, and is distributed to each user. The IC chip includes, for example, a CPU and an EEPROM (Electrically Erasable and Programmable ROM). The EEPROM stores user information and imprint image data as shown in FIG. 2 as an example.
[0024]
The user information is personal information about the user, and includes items such as a user ID, a password, a name, an affiliation, and a post.
Further, the imprint image data is data that defines an imprint image to be pasted on an electronic document (print data to be described later) when an electronic seal is stamped (when an electronic seal is imprinted). Such imprint image data is arbitrarily generated and registered by, for example, a predetermined application program or the like in accordance with a user's instruction. It is also assumed that the imprint image data can be freely updated (changed). In this embodiment, a case where such imprint image data is stored in the IC card 2 will be described. However, the storage location (registered location) of the imprint image data is arbitrary. For example, the seal image data may be stored in the originality assurance storage device 4 (original management DB 42).
[0025]
The user terminal 1 is composed of a general-purpose personal computer or the like, and is operated by the user. Specifically, as shown in FIG. 3, the user terminal 1 includes an arithmetic processing unit 11, a hard disk 12, a memory 13, an instruction input unit 14, a LAN unit 15, an image processing unit 16, a display unit 17 And an interface 18.
[0026]
The arithmetic processing unit 11 includes a CPU (Central Processing Unit), a peripheral LSI (Large Scale Integration) including a clock unit for measuring time and the like, and controls the entire user terminal 1.
Specifically, the arithmetic processing unit 11 creates an electronic document (document data) according to a predetermined application program stored in the hard disk 12 (more specifically, according to an input operation performed by the user via the instruction input unit 14). I do. At that time, the arithmetic processing unit 11 requests the originality assurance storage device 4 to number the original ID via the LAN unit 15 and receives the original ID sent from the originality assurance storage device 4 in response. Then, the received original ID is added to the document data.
The original ID is unique (not duplicated in the electronic document system) identification information used to guarantee the originality of the electronic document (document data and print data).
[0027]
In addition, when an electronic seal is instructed to such document data via the instruction input unit 14, the arithmetic processing unit 11 generates print data in accordance with the document data in a state in which change or the like is impossible. . At this time, the arithmetic processing unit 11 reads the imprint image data and the like described above from the IC card 2, pastes the imprint image at a designated location in the print data, reads the original ID and the like from the document data, and converts the Add.
The print data is defined in a page description language such as PostScript (registered trademark), and can be printed not only by the printer 3 or the like but also by a predetermined viewing application program. .
The print data is defined so that only browsing and printing are possible. In other words, it is defined that change (editing) of print data, duplication of imprint image data in print data, and the like are impossible.
[0028]
Further, when browsing or printing an electronic document (print data), the arithmetic processing unit 11 confirms the existence of document data that is paired with (corresponds to) the print data, and checks the original ID added to the print data. Is checked with the original ID added to the document data, and the browsing display and printout are performed while determining the originality.
[0029]
The hard disk 12 is composed of a magnetic disk or the like having a predetermined capacity, and stores a predetermined OS, various application programs, and the like. Specifically, the hard disk 12 stores, for example, a program for executing a document creation / electronic sealing process, a document browsing / printing process, and a document revision / duplication process, which can be executed on a predetermined OS.
Note that the document creation / electronic sealing process, document browsing / printing process, and the like may be executed as an add-in (plug-in) program of a commercially available application program that can perform document creation, document browsing, and the like. Good.
[0030]
The memory 13 is composed of a RAM (Random Access Memory) or the like, and stores information and the like necessary when the arithmetic processing unit 11 executes a document creation, an electronic sealing process, and the like described later.
For example, the memory 13 temporarily stores an imprint image or the like that is pasted on print data when electronic sealing is performed.
[0031]
The instruction input unit 14 includes a keyboard, a mouse, and the like, and is operated by a user to input predetermined instruction information and the like.
For example, the instruction input unit 14 acquires an electronically stamped position (a position where an imprint image is to be pasted) in document data according to a user operation.
[0032]
The LAN unit 15 is controlled by the arithmetic processing unit 11 and transmits and receives predetermined information to and from the printer 3 and the originality assurance storage device 4 via the LAN 9.
More specifically, when an electronic document (document data) is created, the LAN unit 15 transmits the numbering request information of the original ID to the originality assurance storage device 4 via the LAN 9 and responds to the request. The original ID and the like sent from the property assurance storage device 4 are received.
Further, the LAN unit 15 transmits print data to the printer 3 when printing of an electronic document (print data) is instructed.
[0033]
The image processing unit 16 includes a graphic controller and the like, and is controlled by the arithmetic processing unit 11 to generate predetermined image data and character data (display data) to be displayed on the display unit 17.
For example, when the print data is viewed, the image processing unit 16 generates display data based on the print data to which the imprint image is pasted, and supplies the display data to the display unit 17.
[0034]
The display unit 17 includes an LCD (Liquid Crystal Display) or the like, and is configured to display a predetermined display image according to the display data generated by the image processing unit 16 and supplied.
For example, the display unit 17 displays the content of the print data in which the imprint image is combined at the stamp position according to the display data.
[0035]
The interface 18 includes a PCMCIA (Personal Computer Memory Card International Association) card interface or the like. The interface 18 realizes a hardware connection with the IC card 2 mounted in the user terminal 1 and is controlled by the arithmetic processing unit 11 to perform negotiation with the IC card 2 and the like, and then perform a user ID. And the imprint image data and the like are read from the IC card 2.
[0036]
The user terminal 1 having such a configuration generates document data having a data structure as shown in FIG. 4A when a predetermined application program is executed by the arithmetic processing unit 11 and an electronic document is generated. Then, when the electronic seal is performed, print data having a data structure as shown in FIG. 4B is generated.
Specifically, when the user terminal 1 creates document data by a predetermined application, the user terminal 1 requests the originality assurance storage device 4 to assign an original ID. Then, when the original ID sent from the originality assurance storage device 4 is received, it is added to the document data as shown in FIG.
Further, when the user terminal 1 is electronically stamped with the document data, the user terminal 1 generates print data and adds the same original ID as the document data to the print data as shown in FIG. 4B. That is, the user terminal 1 generates print data to which the imprint image H is pasted as shown in FIG. 4C, and adds the same original ID or the like as the document data.
[0037]
When the user terminal 1 generates such a set of electronic documents (document data and print data), the user terminal 1 transmits the generated electronic document to another user terminal 1 on the LAN 9 by e-mail or the like.
The other user terminal 1 that has received the electronic document checks the existence of the document data to be paired with the print data when browsing and printing the print data, and also checks the original ID of the print data and the document data. By confirming the original ID, the originality of these electronic documents is determined.
[0038]
Further, the user terminal 1 can revise (change) the contents of the document data or duplicate (copy) the document data according to the operation of the user. At this time, the originality assurance storage device 4 is requested to renumber the original ID, and when the new original ID is received, the original (existing) original ID is added to the revised document data or the duplicated document data. Add instead.
[0039]
Returning to FIG. 1, the printer 3 includes, for example, a page printer and the like, receives print data sent from the user terminal 1 via the LAN 9, and prints characters and graphics on a predetermined sheet according to the received data. Print.
More specifically, when print data as shown in FIG. 4C is sent from the user terminal 1, the printer 3 prints a request for approval including the imprint image H on a predetermined sheet according to the print data.
[0040]
The originality assurance storage device 4 includes an original management server 41 and an original management DB.
The original management server 41 includes a predetermined server device including a CPU, a memory, a LAN unit, and the like.
When the electronic document is generated at the user terminal 1 described above, the original management server 41 receives the numbering request information of the original ID sent from the user terminal 1, generates the original ID, and generates the request source. To the user terminal 1. At this time, a management file for managing the original ID and the like is generated and stored in the original management DB 42.
Also, the original management server 41 renumbers the original ID sent from the user terminal 1 when the document data is revised (changed) at the user terminal 1 or when the document data is copied (copied). Upon receiving the request information or the like, a new original ID is generated and sent back to the requesting user terminal 1. At this time, the management file stored in the original management DB 42 is also updated by adding new information.
[0041]
The original management server 41 stores the physical address (MAC address, etc.) of each user terminal 1 and the identification number of each IC card 2 in its own memory (non-volatile memory, etc.) The validity or the like of the user terminal 1 or the IC card 2 to be accessed may be determined as appropriate.
[0042]
The original management DB 42 is composed of a hard disk or the like, and manages a management file including an original ID and the like. That is, when an electronic document (document data) is created in the user terminal 1, the management file including the original ID numbered by the original management server 41 is stored.
When the document data is revised at the user terminal 1 and the document data is duplicated, a new original ID and the like renumbered by the original management server 41 are added to the management file.
[0043]
More specifically, the original management DB 42 manages a management file including information such as an original ID, a category, a user name, and a date and time as shown in FIG.
Note that the category indicates a factor for assigning the original ID. In other words, "creation" is shown when the document data is created, "revision" is shown when the document data is revised, and "duplication" is shown when the document data is duplicated.
[0044]
Hereinafter, the operation of the electronic document system according to the embodiment of the present invention will be described with reference to the drawings.
[0045]
First, an operation of the user terminal 1 for generating a set of electronic documents (document data and print data) will be described with reference to FIG. FIG. 6 is a flowchart illustrating an example of the document creation / electronic sealing process performed by the arithmetic processing unit 11 of the user terminal 1. Note that the document creation / electronic sealing process is instructed to execute a predetermined application program (for example, groupware) for document creation via the instruction input unit 14, and is started with the execution of the application.
It is also assumed that a valid IC card 2 is mounted on the user terminal 1. The user who owns the IC card 2 has input a user ID and a password via the instruction input unit 14, and information such as imprint image data can be read from the IC card 2. It shall be.
[0046]
First, the arithmetic processing unit 11 creates document data according to the designated application program (step S11). For example, the arithmetic processing unit 11 creates document data according to a user's character input or the like via the instruction input unit 14.
[0047]
When the creation of the document data is completed, the arithmetic processing unit 11 transmits the user ID and the like to the originality assurance storage device 4, and requests the original ID to be numbered (step S12). Specifically, the arithmetic processing unit 11 generates numbering request information of the original ID including the user ID and the name read from the IC card 2, and transmits the generated numbering request information to the original via the LAN unit 15. Is transmitted to the storage device 4.
[0048]
Upon receiving the numbering request information sent from the user terminal 1, the originality assurance storage device 4 numbers the original ID for the document data and sends the numbered original ID to the requesting user terminal 1. Send. In addition, the originality assurance storage device 4 generates a management file including the numbered original ID, the classification (“create”), the user name, and the date and time, and stores the management file in the original management DB 42.
[0049]
Upon receiving the original ID sent from the originality assurance storage device 4 in response to the numbering request information, the arithmetic processing unit 11 adds the received original ID to the document data (step S13). That is, as shown in FIG. 4A, the arithmetic processing unit 11 adds an original ID to the document data.
[0050]
The arithmetic processing unit 11 waits for the execution of the subsequent processing until the electronic seal is performed via the instruction input unit 14 (step S14).
[0051]
Then, when the electronic seal is performed, the arithmetic processing unit 11 reads the imprint image data from the IC card 2 and generates print data according to the document data (step S15).
That is, the arithmetic processing unit 11 reads out the imprint image data as shown in FIG. 2 from the IC card 2 and generates print data in which the imprint image data is pasted at a specified location based on the document data.
At this time, the arithmetic processing unit 11 reads the original ID added to the original document data, and adds the read original ID to the print data.
[0052]
The arithmetic processing unit 11 transmits the set of electronic documents (document data and print data) generated by adding the same original ID in this way to another user terminal 1 (step S16).
For example, the arithmetic processing unit 11 generates document data having a data structure as shown in FIG. 4A and print data having a data structure as shown in FIG. It is transmitted to the user terminal 1. The method of transmitting an electronic document to another user terminal 1 is arbitrary. For example, the electronic document may be transmitted to another user terminal 1 by storing it in a shared folder or the like.
[0053]
As described above, the original ID is added to the created document data by the document creation and electronic seal processing shown in FIG. 6 described above, and the print data on which the imprint image is pasted is generated with the electronic seal. You. Note that the same original ID as that of the document data is added to the print data.
Then, an electronic document including such document data and print data is transmitted to another user terminal.
[0054]
Next, the operation of the user terminal 1 for browsing or printing an electronic document (print data) will be described with reference to FIG. FIG. 7 is a flowchart illustrating an example of a document browsing / printing process performed by the arithmetic processing unit 11 of the user terminal 1.
The document browsing / printing process is performed by receiving a print data or the like transmitted from the user terminal 1 that has performed the above-described document creation / electronic sealing process and viewing the received print data by using a predetermined application. A program (for example, groupware or the like) is instructed to be executed, and is started together with the execution of the application.
Further, it is assumed that a valid IC card 2 is mounted on the user terminal 1 as described above.
[0055]
First, the arithmetic processing unit 11 opens the received print data using a predetermined application program (step S21). That is, the arithmetic processing unit 11 controls the image processing unit 16 to display the contents of the print data to which the imprint image is pasted on the display unit 17.
[0056]
The arithmetic processing unit 11 determines whether or not there is document data to be paired with (printed with) the print data (step S22). That is, the arithmetic processing unit 11 determines whether the document data to be sent together with the print data is stored in the hard disk 12 or the like.
[0057]
When the arithmetic processing unit 11 determines that there is no document data to be paired with the print data, the arithmetic processing unit 11 generates an error message notifying that the electronic document has been tampered with (illegal print data) and displays it on the display unit 17 ( Step S23).
At this time, the arithmetic processing unit 11 replaces the imprint image pasted on the print data with an imprint image in which an X mark is superimposed (an image that can be judged to be invalid by anyone) and displayed. It may be displayed on the unit 17. In addition, the image processing may be performed on the imprint image data pasted on the print data, and the image may be displayed as a thinned or rotated imprint image (an image that can be determined to be implicitly invalidated). Good.
[0058]
On the other hand, when determining that there is document data to be paired with the print data, the arithmetic processing unit 11 compares the original ID added to the print data with the original ID added to the document data (step S24). ).
Note that, even when the original ID cannot be appropriately read from the print data or the document data, the arithmetic processing unit 11 proceeds to the above-described step S23 to notify the alteration or the like.
[0059]
The arithmetic processing unit 11 determines whether the read original IDs match (step S25).
When the arithmetic processing unit 11 determines that the original IDs do not match, the processing proceeds to the above-described step S23, and reports alteration or the like. For example, an error message notifying the revision (change) of the document data is generated and displayed on the display unit 17.
[0060]
On the other hand, when determining that the respective original IDs match, the arithmetic processing unit 11 displays a message guaranteeing the originality on the display unit 17 for a predetermined time (for example, about 3 seconds) (step S26).
[0061]
The arithmetic processing unit 11 determines whether or not printing of print data has been instructed via the instruction input unit 14 (step S27). For example, as shown in FIG. 4C, it is determined whether or not a print start is instructed in a state in which the draft decision containing the imprint image H is displayed on the display unit 17.
If the arithmetic processing unit 11 determines that the printing has not been instructed, the document browsing / printing process ends as it is.
[0062]
On the other hand, if it is determined that printing has been instructed, the arithmetic processing unit 11 outputs print data to the printer 3 and performs printing (step S28). That is, the arithmetic processing unit 11 outputs the print data to the printer 3 via the LAN unit 15, and the printer 3 prints the contents of the approval request or the like on a predetermined sheet according to the received print data.
[0063]
In this way, the document browsing and printing processing shown in FIG. 7 allows browsing and printing while confirming the originality of the electronic document (document data and print data).
As a result, the effectiveness of the electronic seal stamp stamped on the electronic document can be appropriately secured.
[0064]
Next, an operation of the user terminal 1 for revising or copying an electronic document (document data) will be described with reference to FIG. FIG. 8 is a flowchart illustrating an example of a document revision / copy process performed by the arithmetic processing unit 11 of the user terminal 1.
The document revision / copying process is performed in order to receive the document data and the like sent from the user terminal 1 that has performed the above-described document creation / electronic sealing process, and to edit (change) the received document data. A predetermined application program (for example, groupware) is instructed to be executed, and is started with the execution of the application.
Further, it is assumed that a valid IC card 2 is mounted on the user terminal 1 as described above.
[0065]
First, the arithmetic processing unit 11 opens the received document data using a predetermined application program (step S31). That is, the arithmetic processing unit 11 controls the image processing unit 16 to display the contents of the document data to which the original ID has been added on the display unit 17.
[0066]
The arithmetic processing unit 11 determines whether the content of the document data has been changed (step S32). For example, the arithmetic processing unit 11 determines whether or not the content of the document data has been revised in accordance with a character input or the like via the instruction input unit 14.
[0067]
When the arithmetic processing unit 11 determines that the content of the document data has not been changed, the processing proceeds to step S35 described below.
On the other hand, when determining that the content of the document data has been changed, the arithmetic processing unit 11 transmits the original ID, the user ID, and the like to the originality assurance storage device 4, and requests a renumbering of the original ID (step S33). . For example, the arithmetic processing unit 11 generates renumbering request information at the time of revision including the original ID added to the document data and the user ID and name read from the IC card 2, and generates the generated renumbering information. The number request information is transmitted to the originality assurance storage device 4 via the LAN unit 15.
[0068]
Upon receiving the renumbering request information at the time of revision, the originality assurance storage device 4 renumbers the original ID for the revised electronic document and directs the renumbered original ID to the requesting user terminal 1. To send. Further, the originality assurance storage device 4 adds information including the renumbered original ID, classification (“revision”), user name, and date and time to the management file.
[0069]
When receiving the new original ID sent from the originality assurance storage device 4 in response to the renumbering request information, the arithmetic processing unit 11 replaces the received original ID with the original (existing) original And delete the print data (step S33). That is, the arithmetic processing unit 11 deletes the print data because the document data has been revised and does not match the content of the print data.
In the document revision / duplication processing, a case will be described in which print data is deleted. However, print data need not be deleted. In this case, since the original ID of the print data does not match the original ID of the document data in step S25 of the document browsing / printing process of FIG. 7, an error message notifying the falsification of the document data is displayed on the display unit. 17 will be displayed. That is, the user can be notified of the revision of the document data without deleting the print data.
[0070]
Then, the arithmetic processing unit 11 determines whether or not a copy instruction has been given (step S35). For example, the arithmetic processing unit 11 determines whether or not a copy (copy) of the document data has been instructed via the instruction input unit 14.
When the arithmetic processing unit 11 determines that the instruction for duplication has not been given, the document revision / duplication processing ends as it is.
[0071]
On the other hand, when it is determined that the copy instruction has been issued, the arithmetic processing unit 11 copies the document data according to the instruction and requests the originality assurance storage device 4 to renumber the original ID (step S36). For example, the arithmetic processing unit 11 generates renumbering request information at the time of duplication including the original ID added to the document data and the user ID and name read from the IC card 2, and generates the generated renumbering request information. The number request information is transmitted to the originality assurance storage device 4 via the LAN unit 15.
[0072]
Upon receiving the renumbering request information at the time of copying, the originality assurance storage device 4 renumbers the original ID for the duplicated electronic document and directs the renumbered original ID to the requesting user terminal 1. To send. Further, the originality assurance storage device 4 adds to the management file information including the renumbered original ID, classification (“duplication”), user name, and date and time.
[0073]
When receiving the new original ID sent from the originality assurance storage device 4 in response to the renumbering request information, the arithmetic processing unit 11 adds the received original ID to the document data (step S37). That is, the received original ID is added to the document data instead of the original (existing) original ID.
[0074]
As described above, when the document data is revised or duplicated by the document revision / copy process shown in FIG. 8, the original ID of only the document data is updated. At the time of document revision, print data is deleted.
Since the original ID added to the document data is updated with the new original ID, even if the document browsing or print output using the print data is performed, the document browsing / printing process of FIG. In step S25, the discrepancy between the original IDs of the print data and the document data is determined, and an error message notifying the falsification of the document data is displayed on the display unit 17.
As a result, the effectiveness of the electronic seal stamp stamped on the electronic document can be appropriately secured.
[0075]
In the above-described embodiment, a case has been described in which the user terminal 1 transmits and receives an electronic document stamped with an electronic seal via the LAN 9 installed in a company or the like, but the user terminal 1 is connected via another network. The electronic documents (document data and print data) with the electronic seal stamped may be transmitted and received between the user terminals 1.
For example, instead of the LAN 9, the user terminal 1 may transmit and receive an electronic document stamped with an electronic seal stamp via a network such as the Internet. Note that the originality assurance storage device 4 and the like are also connected via a network such as the Internet.
In this case, the originality assurance storage device 4 may be provided as one service in an ASP (Application Service Provider) or the like.
[0076]
In the above-described embodiment, a case has been described in which an electronic seal (document data) created by a predetermined application program (for example, groupware or the like) is stamped with an electronic seal. Optional. For example, an electronic seal may be stamped on an image file (image data) obtained by reading a paper document such as a sales slip using a scanner or the like. Alternatively, an electronic seal stamp may be stamped on an electronic document such as XML (extensible Markup Language) automatically generated from information in a database or the like.
[0077]
In the above-described embodiment, a case has been described where an electronic seal stamp is stamped on an electronic document (document data) corresponding to one paper document. However, an electronic document (document data) corresponding to a plurality of paper documents is described. The electronic seal stamp may be stamped collectively.
For example, when managing multiple electronic documents that are subject to the approval and approval of the same matter, create each document data and paste the imprint image onto the print data corresponding to each document data by a single seal instruction. To be attached.
[0078]
【The invention's effect】
As described above, according to the present invention, the effectiveness of an electronic seal stamp stamped on an electronic document can be appropriately secured.
[Brief description of the drawings]
FIG. 1 is a schematic diagram illustrating an example of a configuration of an electronic document system according to an embodiment of the present invention.
FIG. 2 is a schematic diagram showing an example of information stored in an IC card.
FIG. 3 is a block diagram illustrating an example of a configuration of a user terminal.
4A is a schematic diagram illustrating an example of a data structure of document data, FIG. 4B is a schematic diagram illustrating an example of a data structure of print data, and FIG. 4C includes imprint image data; FIG. 4 is a schematic diagram illustrating an example of print data.
FIG. 5 is a schematic diagram illustrating an example of a management file stored in an original management DB.
FIG. 6 is a flowchart for explaining document creation and electronic seal processing according to the embodiment of the present invention.
FIG. 7 is a flowchart illustrating a document browsing / printing process according to the embodiment of the present invention.
FIG. 8 is a flowchart illustrating a document revision / copy process according to the embodiment of the present invention.
[Explanation of symbols]
1 user terminal
11 arithmetic processing unit
12 Hard Disk
13 memory
14 Instruction input unit
15 LAN unit
16 Image processing unit
17 Display
18 Interface
2 IC card
3 Printer
4 Originality assurance storage device
41 Original Management Server
42 Original Management DB
9 LAN

Claims (9)

Identification information acquiring means for acquiring unique identification information corresponding to the created document data;
Identification information adding means for adding the identification information obtained by the identification information obtaining means to the document data;
A seal instructing means for instructing an electronic seal stamp on the document data to which the identification information is added by the identification information adding means,
In response to an instruction from the seal instructing means, print data on which an imprint image corresponding to the electronic seal stamp is pasted is generated according to the document data, and the identification information adding means adds the generated print data to the document data. Print data generating means for adding the same identification information as the identification information;
An electronic document system comprising: Document data updating means for updating the content of the document data to which the identification information is added by the identification information adding means,
The identification information obtaining means, when the document data is updated by the document data updating means, obtains new identification information,
The identification information adding unit adds new identification information to the document data instead of the existing identification information;
The electronic document system according to claim 1, wherein: Document data duplication means for duplicating the document data to which the identification information has been added by the identification information addition means,
When the document data is copied by the document data copying unit, the identification information obtaining unit obtains new identification information,
The identification information adding unit adds new identification information to the document data instead of the existing identification information;
The electronic document system according to claim 1, wherein: First determining means for determining whether there is document data to which identification information has been added by the identification information adding means corresponding to the print data generated by the print data generating means;
A second determining unit that determines whether the identification information added to the print data matches the identification information added to the document data when the first determination unit determines the presence of the document data; When,
A print unit that prints, on a predetermined sheet, the document content on which the imprint image is pasted, according to the print data, when the second determination unit determines that the two pieces of identification information match.
The electronic document system according to claim 1, 2 or 3, wherein: An electronic document system in which a plurality of terminals are connected via a network,
Each terminal is
Document data generating means for generating document data to which a unique original ID for managing the original is added;
A seal instructing means for instructing the electronic seal stamp on the document data;
In response to an instruction from the seal instructing means, print data having an imprint image corresponding to an electronic seal stamp is generated in accordance with the document data, and the same original document ID as the document data is added to the generated print data. Print data generation means;
Data transmission means for transmitting the document data and the print data to another terminal as a set of electronic documents,
An electronic document system, characterized in that: Data receiving means for receiving the document data and the print data sent from another terminal,
First determining means for determining whether or not the document data corresponding to the print data received by the data receiving means exists;
When the presence of the document data is determined by the first determination unit, the identification information added to the print data received by the data reception unit and the identification information added to the document data received by the data reception unit Second determining means for determining a match with the identification information,
When the second discriminating unit determines that the two pieces of identification information match, a printing unit that prints the document content on which the imprint image is pasted on a predetermined sheet according to the print data received by the data receiving unit. And further comprising:
The electronic document system according to claim 5, wherein: An identification information acquisition step of acquiring unique identification information corresponding to the created document data;
An identification information adding step of adding the identification information obtained in the identification information obtaining step to the document data;
In the document information to which the identification information has been added in the identification information addition step, a seal instruction step of instructing the seal of an electronic seal stamp,
In response to the instruction in the stamp instruction step, print data on which an imprint image corresponding to the electronic seal stamp is pasted is generated in accordance with the document data, and the generated print data is added to the document data in the identification information adding step. Print data generating step of adding the same identification information as the identified identification information;
An electronic sealing method, comprising: A document data updating step of updating the content of the document data to which the identification information is added in the identification information adding step;
The identification information obtaining step, when the document data is updated in the document data updating step, obtains new identification information,
The identification information adding step adds new identification information to the document data instead of the existing identification information,
The electronic imprinting method according to claim 7, wherein: A document data copying step of copying the document data to which the identification information is added in the identification information adding step,
When the document data is copied in the document data copying step, the identification information obtaining means obtains new identification information,
The identification information adding step adds new identification information to the document data instead of the existing identification information,
The electronic imprinting method according to claim 7, wherein:

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