JP2000036905A - Electronic seal system - Google Patents

Abstract

(57) [Problem] To provide an electronic seal system which is excellent in forgery prevention effect, simplifies the management of duplicates, and enables collation of documents from a remote place even when duplicates are not at hand. A document issuance device (601) for rotating an electronic seal data by an angle that can be specified and dividing the electronic seal data into two at a position and a direction of a cut surface that can be specified to create a seal. Document creating means (611) for creating a document, display means (610) for synthesizing the created seal and the document, and displaying them on a screen, and the seal created by the seal creating means (601) and the document creating means (6).
There are printing means (608, 609) for synthesizing the document created in 11) on the same sheet and printing it as a document with an indicia, and storage means (604, 607) for storing the data and the document relating to the created indicia.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for creating, issuing, and printing a document on which an electronic seal is printed in order to prevent forgery of the document.
The present invention relates to an electronic seal system for collating, for example, an electronic seal system having an automatic document issuing device such as a certificate issuing device for printing and issuing a certificate and / or a document collating device.

[0002]

2. Description of the Related Art Conventionally, as a method for preventing forgery of a document, a method is known and commonly used in which an original and a duplicate of an issued document are staggered and overlapped, and a seal is stamped at a position straddling both documents. I have. Also, in recent years, due to the development of printing technology using printers, stamps and company emblems used for stamping have been printed electronically by printers instead of being manually stamped. Several prevention schemes have also been proposed. For example, Japanese Unexamined Patent Publication No. 7-30742 discloses a stamping process in which one electronic seal pattern is divided into two in the vertical or horizontal direction using random numbers, and printed at an arbitrary position on each of the original document and the duplicate document. A printer system is disclosed. Japanese Patent Application Laid-Open No. 9-174949 discloses that when an original and a duplicate are created, the original and the duplicate are printed on the same sheet of paper.
A printing method is disclosed in which a seal is printed on a line for cutting each and then the document is cut.

[0003]

Originally, in the forgery prevention method based on the tallying, it is necessary to confirm the authenticity or the duplicateness of the original by checking the authenticity of the original. In other words, for the authenticity determination of the original, the duplicate must be at hand, and when they are physically separated from each other, the authenticity cannot be determined. In this respect, the indexing method is inconvenient, and this problem has not been solved in the conventional proposals. Further, in the conventional indexing method, after the document is issued, it is necessary to keep the actual duplicate in a paper document, and the management thereof is troublesome. Speaking of electronic stamp printing,
A method has been proposed in which a seal is cut at an arbitrary coordinate point in the vertical or horizontal direction and a different mark is pressed for each issue.
The rotation of the seal is not considered, and its imprint is mechanical and leaves room for improvement to prevent forgery. SUMMARY OF THE INVENTION It is an object of the present invention to provide an electronic seal system which is excellent in a forgery prevention effect, simplifies the management of duplicates, and is capable of collating documents from a remote place even when duplicates are not at hand.

[0004]

In order to achieve the above object, the electronic seal system of the present invention rotates electronic seal data by a specifiable angle and divides the data into two by a position and a direction of a specifiable cutting plane. Tally creation means (seal processing unit 601) for creating a tally, document creation means (document processing unit 611) for creating a document, and display means (document for combining the created tally and a document and displaying the same on a screen Display section 61
0), printing means (document print processing unit 608, seal) which combines the markings created by the marking creation means (seal processing unit 601) and the document created by the document creation means on the same sheet of paper and prints as a signed document. A print processing unit 609) and a storage unit for storing data and a document relating to the created stamp (seal processing data memory 604, document data memory 607)
(The document issuing apparatus 1 shown in FIG. 6).
2). Further, it is characterized by having a storage means similar to the above, and a collation means for acquiring data relating to the seal from the storage means and collating it with the seal printed on the document (document collation device 13). Further, the data and the document relating to the mark stored in the storage means are transferred and stored in a server (file server 11) connected via a communication line (14), and the communication line (1
It is also characterized in that it can be referred to via 4).

[0005] By employing these configurations, it is possible to issue a document with an index having more specificity (in the rotation angle, the position and the direction of the cut surface) as compared with the conventional method, and the document forgery prevention effect. Is greatly improved. In addition, by limiting the number of marked documents to be printed and issued to only the original, instead of storing the data of the document, management of duplicates is simplified, and based on the stored contents, duplicates are reproduced and displayed on the display of the device. By displaying on the original
It is possible to determine the authenticity of the duplicate. In addition, information on the issued document can be obtained from a remote place, and even if the authenticity of the document is not found at hand as in the past, the device connected to the communication line should be used. Is possible.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (Summary) In a method for describing a seal using an electronic seal to prevent forgery of a document, conventionally, two issued documents (an original and a duplicate) are required. According to the present invention, data relating to an issued document and a seal described therein is stored in a storage device of an issuing device (document issuing device) or the like, and when the authenticity is determined, the data is used to copy a duplicate on a screen of the device. Can be reproduced and displayed to enable authenticity verification. As a result, the number of issued documents is only one (original), thereby simplifying duplicate management and improving the convenience of authenticity determination. In addition, the uniqueness of the imprint is enhanced by rotating the arbitrary electronic seal data by an arbitrarily specifiable angle on the imprint used for authenticity verification and then using the imprint divided into two by an arbitrarily specifiable cutting plane, Improve the effect of preventing forgery of documents.

An embodiment of the present invention will now be described with reference to FIGS.
This will be described in detail with reference to FIG. FIG. 1 is a connection configuration diagram of a file server, a document issuing device, and a document matching device in the present embodiment. As shown in FIG. 1, a document issuing device 12, a document matching device 13, and the like are connected to the file server 11 via a communication line.

FIG. 2 is a configuration diagram of the file server 11 in the present embodiment. As shown in the figure, the file server 11 includes a CPU 202, a display device 201, an input device 203, a communication control device 204, and a storage device 2.
05 and the like. The storage device 205 includes a seal database 206 and a document database 208. The seal database 206 stores electronic seal data 207, and the document database 208 stores document data 209 and stamp processing data 210 attached thereto in association with the document identification code 211. The stamp processing data 210 includes an electronic stamp data name 41 before processing, a stamp origin 42, a stamp data division coordinate 43, and a stamp rotation angle 4.
4. The sub stamp origin 51 is stored.

FIG. 3 shows a document issuing apparatus 1 according to this embodiment.
FIG. As shown in FIG.
2 is a CPU 31, a display device 32, an input device 3
3, a main storage device 34, a document printing printer 35, a stamp printing printer 36, a scanner device 38, a communication control device 37, and the like. Note that the document collation device 13
Is the printer 3 in the configuration of the document issuing device 12 shown in FIG.
5 and 36 are omitted, and the other configuration has the same function as the document issuing device 12.

FIG. 4 is a diagram for explaining the contents of the stamp processing data 210 and its definition. Seal processing data 21
0 is the electronic seal data name 4 before processing as described above.
1, a stamp origin 42, a stamp data division coordinate 43, a stamp rotation angle 44, and a sub stamp origin 51 are included. In the example of FIG.
The paper width of the document is Xd, the length of the paper is Yd, the origin of the paper is 45, the size of the seal in the X direction is Xs, the size of the Y direction is Ys, and the origin 42 of the seal (minimum X coordinate value of the seal) To X
m, coordinates (Xm, Y) when the minimum Y coordinate value is Ym
m)), and the division of the seal is performed in parallel with the Y axis by X = Xm + Xn (the seal data division coordinates 43: Xn is the distance between X = Xm (the origin of the seal) and the division point of the seal). The seal is not straight, but is stamped at an arbitrary angle. The angle of the inclination (that is, rotation) at this time is the stamp rotation angle 44.

FIG. 5 is a diagram showing the relationship between the original document, the duplicate document, and the tally. The stamp origin of the stamp in the duplicate document (sub stamp origin 51) is calculated by determining the intersection of the primary and secondary documents that is in contact with the stamp cut surface of the original document and is an extension of a parallel straight line. The secondary stamp origin 51 is represented by coordinates from the paper origin of the duplicate document (= the intersection of the primary and secondary documents). In the example of the figure, the coordinates of the sub stamp origin 51 are (−Xn, Ym−Yp). Here, Yp is the Y coordinate (deviation in the Y-axis direction) of the intersection of the primary and secondary documents.

FIG. 6 is a functional block diagram of a document issuing process in the document issuing device 12. As shown in FIG. Hereinafter, the flow of the processing will be described mainly with reference to FIG. When a document is created by the document issuing device 12, the document data is created by the document processing unit 611 and temporarily stored in the document data memory 607.
First, the seal is stored in the seal database 2 of the file server 11 by the communication control processing unit 605 via the communication control device 37.
06, the desired electronic seal data is selected and downloaded to the seal data memory 602. Next, the stamp processing section 6
At 01, the electronic seal data is processed (hereinafter, see FIG. 4).

First, the seal is rotated by an arbitrary angle D degrees. D is calculated using the following formula. D = 360 × R1 [degree] (where R is a random number and 0 ≦ R
1 <1. This angle D is called a stamp rotation angle.

Next, division of a seal will be described. In this example, the seal is divided into two by a vertical cutting plane at an arbitrary coordinate Xn having the origin at the upper left end of the seal data (or similarly, may be divided into two by a horizontal cutting plane. Generally, only vertical or horizontal) However, it may be divided into two in any direction.)
The coordinates Xn to be divided are calculated using the following formula. Xn = Xs × R2 (where R2 is a random number and 0.3 ≦ R
2 ≦ 0.7. Here, the reason why the value of the random number R2 is not less than 0.3 and not more than 0.7 is that if the dividing position of the tally is too far, it is not preferable as the tally. The coordinates of the cut surface are called stamp data division coordinates. One of the two divided electronic seal data is stored in the seal data memory 603.

Further, the coordinates at which the created indicia are to be arranged in the document are calculated using the following formula. Xm = (Xd−Xs) × R3 (where R3 is a random number,
0 ≦ R3 ≦ 1. ) Ym = (Yd−Ys) × R4 (where R4 is a random number,
0 ≦ R4 ≦ 1. The coordinates (Xm, Ym) obtained from this formula are called the stamp origin 42. The formula multiplies the difference value between the vertical (horizontal) length of the sheet and the vertical (horizontal) length of the stamp by a random number so that the stamp to be imprinted does not protrude from the sheet. The seal origin is the XY coordinates from the original paper origin 45, and indicates the position of the tally in the document.

Finally, a sub stamp origin 51, which is the stamp origin of the duplicate, is obtained (see FIG. 5). The point at which the duplicate and the original are overlapped (the intersection of the original and the duplicate in FIG. 5) is X when viewed from the origin of the original.
Assuming that the Y-coordinate of the intersection of the main document and the sub-document is on the vertical line at the coordinates (Xm + Xn), and Yp is in the range of 0 ≦ Yp ≦ Ym, the seal is not missing as a whole. From the above, Yp is calculated by the following equation. Yp = Ym × R5 (where R5 is a random number and 0 ≦ R5 ≦
It is one. ) Since Yp is determined, the sub stamp origin 51 to be obtained is
The case where the document origin of the duplicate is (0, 0), that is, the case of considering the duplicate coordinates (-Xn, Ym-Yp). When reproducing the duplicate stamp, the seal is drawn with this point as the origin.

As described above, the electronic seal data name 41 and the seal origin 4 of the electronic seal data, which are the data used for processing the stamp.
2. The stamp data division coordinates 43, the stamp rotation angle 44, and the secondary stamp origin 51 (collectively referred to as “stamp processing data”) are stored in the stamp processing data memory 604.
In the above embodiment, an example has been described in which a random number is generated and the stamp rotation angle and the stamp origin are given by the above formulas.
These may adopt a method in which the user arbitrarily selects on the display device 32. For the created document, the document data held in the document data memory 607 is printed by the document printing printer 35 via the document print processing unit 608.

Thereafter, the stamp data in the stamp data memory 603 is printed by the stamp printing printer 36 via the stamp print processing unit 609 so that the position indicated by the stamp origin 42 on the same document is located at the upper left corner. Further, a document identification code 211 or the like for later searching the document from the file server is printed on the document. For printing, the document data and the seal data may be printed by separate printers, or a method of printing by the same printer may be adopted. In addition, the color of the imprint to be printed is arbitrarily specified, information on the specified color is also stored, and the actual color of the imprint printed on the document is compared with the stored color. Can be used as a judgment material at the time of authenticity collation.

The contents of the document data memory 607 and the stamp processing data memory 604 relating to the duplicate of the printed and issued document are transferred to the document database 208 of the file server 11 by the communication control processing unit 605 after the original copy is printed, and stored. . Further, the document database 208 can extract data on the issued document based on the document identification code 211.

When the authenticity of the issued signed document is determined, in the document issuing device 12 or the document matching device 13, the communication control processing unit 605 reads the document identification written on the document from the storage device 205 of the file server 11. Code 2
11, the electronic seal data 207 and the document data 20
9 and the stamp processing data 210 are downloaded to the stamp data memory 602, the document data memory 607, and the stamp processing data memory 604 of the respective devices, and the stamp processing unit 6 is processed based on the downloaded stamp processing data 210.
01 and reproduces the marking data corresponding to the duplicate of the document and stores it in the marking data memory 603. Then, the document display unit 610 displays the duplicate with the marking on the display device 32, and displays the screen and the document (original document). ) Is compared to determine the authenticity of the document. Here, the file server 11, the document issuing device 12, and the document matching device 13 may be in the same device.

In the determination of the authenticity, not only the comparison by the human visual sense but also the image input of the mark on the original document by the scanner device 38 or the like, and the electronic pattern matching process with the mark of the duplicate copy is performed. May be used to make a true / false determination mechanically. Note that, in the embodiment shown in FIG. 5, the case where the tally is printed at the end of the duplicate document is shown. However, the position of the tally to be printed on the duplicate is not limited to this, and the tally is placed inside the duplicate document. For example, FIG.
The origin of the secondary seal may be located within the duplicate document surface as shown in FIG.

[0022]

According to the present invention, it is possible to publish a document in which a stamp having a higher specificity than that of the conventional stamp printing method using an electronic seal is described, and the effect of preventing forgery of the document is greatly improved. It becomes possible, and the management of duplicates can be omitted. Further, the authenticity of a document can be determined at a remote place via a communication line.

[Brief description of the drawings]

FIG. 1 is a connection configuration diagram of a file server, a document issuing device, and a document matching device according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a file server 11 according to the embodiment of the present invention.

FIG. 3 is a configuration diagram of a document issuing device according to an embodiment of the present invention.

FIG. 4 is a diagram for explaining the contents of stamp processing data and its definition in the embodiment of the present invention.

FIG. 5 is a diagram showing a relationship between an original document, a duplicate document, and a tally in the embodiment of the present invention.

FIG. 6 is a functional block configuration diagram of a document issuing process of the document issuing device according to the embodiment of the present invention.

FIG. 7 is a diagram for explaining a case in which a mark is placed inside a duplicate document in the embodiment of the present invention.

[Explanation of symbols]

11: File server, 12: Document issuing device, 13: Document collating device, 14: Communication line, 201: Display device, 202: CPU, 203: Input device, 204: Communication control device, 205: Storage device, 206: Seal Database, 207: electronic seal data, 208: document database, 209: document data, 210: stamp processing data, 2
11: document identification code, 31: CPU, 32: display device, 33: input device, 34: main storage device, 35:
Document printing printer, 36: Seal printing printer, 3
7: communication control device, 38: scanner device: 41: electronic seal data name, 42: seal origin, 43: seal data division coordinates, 44: seal rotation angle, 45: paper origin, 51: sub-seal origin, 601: seal Processing unit, 602: stamp data memory, 603: stamp data memory, 604: stamp processing data memory, 605: communication control processing unit, 607: document data memory, 608: document print processing unit, 609: stamp print processing unit, 610: Document display unit, 611: Document processing unit.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Toshikazu Umeto 1 Ikegami, Haruoka-cho, Owariasahi-shi, Aichi Prefecture Inside the Information Equipment Division of Hitachi, Ltd. F-term in Hitachi Information Technology Division (Reference) 2C087 AB01 BD01 BD07 BD24 BD53 CB06 CB07 CB20 DA13 5C076 AA14 AA24 AA36 BA02 BA03 BA04 CA02 CB03

Claims (3)

[Claims] 1. An imprint creating means for rotating an electronic seal data by a specifiable angle and dividing the electronic seal data into two by a specifiable cutting plane position and direction to create an imprint, a document creating means for creating a document, and the creating Display means for synthesizing the document and the document created by the document creation means on the same sheet of paper, and printing means for combining the document created by the document creation means with the mark created by the mark creation means. An electronic seal system, comprising storage means for storing data and a document relating to the created seal. 2. A storage means for rotating electronic seal data by a specifiable angle and storing data and a document relating to an indicia divided into two by a position and a direction of a specifiable cutting plane, and acquiring data relating to the imprint from the storage means. And a collation means for collating with a stamp printed on a document. 3. The data and document relating to the seal stored in the storage means are transferred and stored in a server connected via a communication line, and can be referred to from outside via a communication line. Item 3. The electronic seal system according to Item 1 or 2.