JP3735626B2 - Seal verification system - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic seal system that creates, issues, and collates a document printed with an electronic seal in order to prevent forgery of the document. For example, an automatic document issuing device such as a certificate issuing device that prints and issues a certificate And / or an electronic seal system having a document verification device.

  2. Description of the Related Art Conventionally, as a method for preventing forgery of a document, a method based on a split method in which an original document and a duplicate of an issued document are shifted and overlapped and a seal is stamped at a position across both documents is well known and commonly used. In recent years, due to the development of printing technology using printers, the seals and company emblems used for tallying have been printed by electronic printers using printers instead of actually manually stamping them. Several prevention methods have been proposed.

  For example, Patent Document 1 discloses a method using a tally printer that divides one electronic seal pattern into two parts in a vertical direction or a horizontal direction using random numbers, and prints them at arbitrary positions on each document as a main copy and a duplicate. Is disclosed.

  Further, Patent Document 2 discloses a printing method in which, when creating a manuscript and a duplicate, the manuscript and the duplicate are printed on the same sheet, and a stamp is printed on a line that cuts each of them, and then the document is cut. .

Japanese Patent Application Laid-Open No. 7-30742

JP-A-9-174949

  Originally, in the anti-counterfeiting method using the seal, it is necessary to confirm the authenticity / duplicate with the actual thing for the authenticity determination. That is, for authenticity determination of authenticity, the duplicate must be present at hand, and authenticity determination is not possible when each is physically separated. In this respect, the marking method is inconvenient, and this problem is not solved even in the conventional proposals.

  Further, in the conventional tallying method, it is necessary to store the actual duplicate as a paper document after the document is issued, and it takes time and effort to manage it.

  Regarding the method of printing with electronic seals, a method has been proposed in which a stamp is cut at an arbitrary coordinate point in the vertical or horizontal direction and a different stamp is pressed for each issue, but rotation of the seal is not considered. In addition, the imprint is mechanical and there is room for improvement to prevent forgery.

  An object of the present invention is to provide an electronic seal system that is excellent in forgery prevention effect, simplifies the management of duplicates, and enables collation of documents from a remote place without the duplicates at hand.

  In order to achieve the above object, the electronic seal system of the present invention rotates the electronic seal data by a specifiable angle, and divides the electronic seal data into two by the position and direction of the specifiable cutting plane (a seal creating means (seal) Processing unit 601), document creation unit for creating a document (document processing unit 611), display unit for synthesizing the created tally and the document and displaying it on the screen (document display unit 610), tally creation unit Printing means (document print processing unit 608, seal print processing unit 609) for combining the mark created by the (stamp processing unit 601) and the document created by the document creation unit on the same sheet and printing it as a document with a tick; It has a storage means (seal processing data memory 604, document data memory 607) for storing the data relating to the created seal and the document (document issuing device of FIG. 6). See functional block diagram of a 12). Further, the present invention is characterized by having storage means similar to the above and collation means for acquiring data relating to the tally from the memory means and collating with the tally printed on the document (document collation apparatus 13). Further, the data and document relating to the tally stored in the storage means are transferred and stored in the server (file server 11) connected via the communication line (14), and are referred to from the outside via the communication line (14). It is also possible to make it possible.

  By the above means, it becomes possible to issue a tallyed document having more specificity (in the rotation angle, the position and direction of the cut surface) as compared with the conventional method, and the document forgery prevention effect is greatly improved.

  In addition, by saving only the original document with a tally to be printed and printing, instead of storing the data of the document, the management of the duplicate is simplified, and the duplicate is reproduced based on the stored contents, and the display of the device is reproduced. By displaying the above, it is possible to determine the authenticity of the original and the duplicate.

  In addition, information related to issued documents can be obtained from a remote location, and even if the authenticity of the document is neither on hand nor at hand, as in the past, a device connected to the communication line should be used. Is possible.

  First, an outline of an embodiment suitable for the present invention will be described. Conventionally, in order to prevent forgery of documents, a method of writing a seal using an electronic seal requires two issued documents (original and duplicate). In the present invention, the issued document and the data relating to the tally described therein are stored in a storage device of the issuing device (document issuing device), etc., and a copy is made on the screen of the device using the data when determining authenticity. Reproduced and displayed to enable authenticity verification. As a result, only one issued document (original copy) is provided, so that duplicate management is simplified and the convenience of authenticity determination is improved. In addition, by using a mark that is divided into two at the cutting surface that can be arbitrarily specified after rotating any electronic seal data by an angle that can be arbitrarily specified as the mark used for authenticity verification, Improve the forgery prevention effect of documents.

  Hereinafter, an embodiment will be described in detail with reference to FIGS.

  FIG. 1 is a connection configuration diagram of a file server, a document issuing apparatus, and a document collating apparatus in the present embodiment. As shown in the figure, a document issuing device 12 and a document collating device 13 are connected to the file server 11 via a communication line 14.

  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, a storage device 205, and the like. The storage device 205 includes a seal database 206 and a document database 208. Electronic seal data 207 is stored in the seal database 206, and document data 209 and seal processing data 210 attached thereto are stored in the document database 208 in association with the document identification code 211. In the stamp processing data 210, an electronic stamp data name 41 before processing, a stamp origin 42, a seal data division coordinate 43, a stamp rotation angle 44, and a sub stamp origin 51 are stored.

  FIG. 3 is a configuration diagram of the document issuing apparatus 12 in the present embodiment. As shown in the figure, the document issuing device 12 includes a CPU 31, a display device 32, an input device 33, a main storage device 34, a document printing printer 35, a seal printing printer 36, a scanner device 38, a communication control device 37, and the like. Consists of The document collating device 13 is the same as the document issuing device 12 shown in FIG. 3 except for the printers 35 and 36, and the other components have the same functions as the document issuing device 12.

  FIG. 4 is a diagram for explaining the contents of the stamp processing data 210 and the definition thereof. As described above, the stamp processing data 210 includes the electronic stamp data name 41, the stamp origin 42, the stamp data division coordinates 43, the stamp rotation angle 44, and the sub stamp origin 51 before processing.

  In the example of the figure, the paper width of the document is Xd, the paper length is Yd, the paper origin is 45, the size of the seal in the X direction is Xs, the size of the Y direction is Ys, and the stamp origin 42 ( Coordinate (Xm, Ym) where Xm is the minimum X coordinate value of the seal and Ym is the minimum Y coordinate value, X = Xm + Xn (the seal data division coordinate 43: where Xn is X = Xm) It is assumed that this is performed in parallel to the Y axis at the origin) and the distance to the division point of the seal). The seal is not straight but is tilted at an arbitrary angle. The angle of 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 origin of the seal stamp (second seal origin 51) in the duplicate document is calculated by determining the intersection of the regular document that is in contact with the seal cut surface of the original document and on the extension of the parallel straight line. The secondary stamp origin 51 is expressed by coordinates from the paper origin of the duplicate document (= the intersection of the primary and secondary documents). In the illustrated example, the coordinates of the sub seal origin 51 are (−Xn, Ym−Yp). Here, Yp is the Y coordinate (shift in the Y-axis direction) of the intersection of the primary and secondary documents.

  FIG. 6 is a functional block configuration diagram of document issuance processing in the document issuance apparatus 12. Hereinafter, the flow of processing will be described with reference to this figure.

  When a document is created in 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. For the tally, first, the communication control processing unit 605 selects desired electronic seal data from the seal database 206 of the file server 11 via the communication control device 37 and downloads it to the seal data memory 602. Next, the electronic seal data is processed by the seal processing unit 601 (see FIG. 4 below).

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

  Next, the division of the seal will be described. In this example, the seal is divided into two by a vertical cut surface at an arbitrary coordinate Xn with the upper left corner of the seal data as the origin (or similarly, it may be divided into two by a horizontal cut surface. Generally, only vertical or horizontal is used. Instead, 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 ≦ R2 ≦ 0.7)
Here, the reason why the value of the random number R2 is set to 0.3 or more and 0.7 or less is that it is not preferable as a mark when the split position of the mark is too far. The coordinates of the cut surface are called stamp data division coordinates. One of the electronic seal data divided into two is stored in the percent data memory 603.

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

  Finally, a sub-stamp origin 51, which is a stamp origin of the duplicate, is obtained (see FIG. 5).

The point where the duplicate and the original are overlapped (the intersection of the primary and secondary documents in FIG. 5) is on the vertical line in the X coordinate (Xm + Xn) when viewed from the original document origin, and if the Y coordinate of the primary and secondary document intersection is Yp, 0 ≦ Yp ≦ Ym If it is in the range of, the overall seal will not be missing. From the above, Yp is calculated by the following equation.
Yp = Ym × R5 (where R5 is a random number and 0 ≦ R5 ≦ 1)
Since Yp is determined, the obtained duplicate stamp origin 51 is obtained when the duplicate document origin is set to (0, 0), that is, when considered in duplicate coordinates (−Xn, Ym−Yp). When reproducing the copy of the duplicate, the seal is drawn with this point as the origin.

  As described above, the electronic seal data name 41, the seal origin 42, the seal data division coordinates 43, the seal rotation angle 44, the sub-signature origin 51 of the electronic seal data which is the data used for the processing of the seal (the stamp processing data Are collectively stored in the stamp processing data memory 604. In the above embodiment, an example has been described in which random numbers are generated and the stamp rotation angle and the stamp origin are given by the above formulas. However, these may be selected arbitrarily by the user on the display device 32. Good. 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 mark data in the mark data memory 603 is printed by the seal printing printer 36 via the seal print processing unit 609 so that the position indicated by the stamp origin 42 on the same document is the upper left corner. Further, a document identification code 211 or the like for searching the document later from the file server is printed on the document. As for printing, document data and seal data may be printed by separate printers, or a method of printing by the same printer may be adopted. Also, the color of the tally to be printed is arbitrarily designated, information on the designated color is stored, and the actual tally color printed on the document is compared with the stored color. It is also possible to use as a judgment material at the time of authenticity verification.

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

  At the time of authenticity determination of the issued tallyed document, in the document issuing device 12 or the document collating device 13, the communication control processing unit 605 reads the document identification code 211 described on the document from the storage device 205 of the file server 11. The electronic seal data 207, the document data 209, and the seal processing data 210 are downloaded onto the seal data memory 602, the document data memory 607, and the seal processing data memory 604 of each device, and the downloaded stamp processing data 210 is used as the original. The stamp processing unit 601 reproduces the mark data corresponding to the duplicate of the document and stores it in the mark data memory 603. Then, the document display unit 610 displays the duplicate document with the mark on the display device 32, and displays the screen. The document (authentic document) is compared to determine the authenticity of the document. Here, the file server 11, the document issuing device 12, and the document collating device 13 may be in the same device.

  In authenticity determination, not only human visual comparison, but also a mechanical device such as a scanner device 38 or the like is used to input an image of a mark on the original document and perform electronic pattern matching processing with the mark of the duplicate. The authenticity determination may be performed.

  In the embodiment shown in FIG. 5 above, the case where a tally is printed at the end of the duplicate document is shown. However, the position of the tally printed on the duplicate is not limited to this, and the tally is placed inside the duplicate document. For example, as shown in FIG. 7, the origin of the secondary seal may be within the secondary document surface.

  According to the present invention, it is possible to publish a document describing a seal with high specificity compared to a conventional seal printing method using an electronic seal, and it is possible to greatly improve the anti-counterfeit effect of the document. It is also possible to omit the duplicate management. Furthermore, it is possible to determine the authenticity of a document even at a remote place via a communication line.

It is a connection block diagram of a file server, a document issuing apparatus, and a document collation apparatus. 2 is a configuration diagram of a file server 11. FIG. It is a block diagram of a document issuing apparatus. It is a figure for demonstrating the content and its definition of stamp processing data. It is a figure which shows the relationship between an original document, a duplicate document, and a tally. It is a functional block block diagram of the document issuing process of a document issuing apparatus. It is a figure for demonstrating the case where a tally is placed inside a duplicate document.

Explanation of symbols

11: File server, 12: Document issuing device, 13: Document collation 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: Seal processing data, 211: Document identification code, 31: CPU, 32: Display device, 33: Input device, 34: Main storage device, 35: Document printing printer, 36: Seal printing printer, 37: Communication control device, 38: Scanner device: 41: Electronic seal data name, 42: Stamp origin, 43: Stamp data division coordinates, 44: Stamp rotation angle, 45: Paper origin, 51: Sub seal origin, 601: Seal processing unit, 602: Seal data memory, 603: Split Data memory, 604: seal machining data memory, 605: communication control unit, 607: document data memory, 608: document print processing unit 609: stamp printing unit, 610: document display unit, 611: document processing unit.

Claims (4)

A seal creation means for creating a main copy seal stamp that splits a seal and presses it on a main copy, and a duplicate copy seal stamp that presses on a copy,
A genuine copy issuing means for outputting the original copy seal created by the mark creating means to paper and issuing the original copy;
Marking creation condition storage means for storing a condition for creating a genuine copy stamp or a duplicate copy stamp by the mark creating means for each original issued by the original issuing means;
A seal collation system characterized by having a mark reproduction means for obtaining a condition from the mark creation condition storage means corresponding to the original issued by the original issue means and reproducing a duplicate copy seal based on the condition . The seal verification system according to claim 1, further comprising:
Image acquisition means for acquiring an original image including the original copy seal issued by the original issue means;
A stamp collation system comprising pattern matching means for performing a pattern matching process between an image of a main copy seal stamp obtained by the image acquisition means and a duplicate copy seal mark reproduced by the mark reproduction means. A seal verification system for verifying a seal stamped on a document,
A seal creation means for dividing a seal to create a plurality of seal stamps;
Marking creation condition storage means for storing information of the mark badge for each document identification code of the document that has output the mark badge created by the mark marking creation means;
A tally verification information system comprising tally information acquisition means for acquiring tally information stored in the tally creation condition storage means by the document identification code. A seal verification system for verifying a seal on a document,
A seal creation condition storage means for storing information of each seal stamp for each document identification code of a document printed with one of the seal stamps into which the seal is divided;
Tally information acquisition means for acquiring tally information stored in the tally creation condition storage means by the document identification code;
The tally impression information obtaining means, according to the document identification code of the document with a first tally impression chapter acquires tally impression information stored in the tally impression created condition storage means, the second corresponding to the first tally impression chapters and displaying the tally impression chapter.

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