JPH03136165A - Document preparation system - Google Patents

Abstract

PURPOSE:To confirm whether a signature is true or not even after printing and copying of a document by adding additional information, which only a signer himself and persons concerned can understand, to the signature entered on the electronic document. CONSTITUTION:A document is called from a storage device 101 or a new document is generated by a processor 102 to prepare the document in a processor 102. Signature data is read in from a hand-writing input device 103 and the inputted signature is arranged in a proper position of the document, and at this time, the document is displayed on a display device 104 together with the signature. Ciphered data is generated in accordance with a certain determined rule and is arranged in a proper position of the signature on the document. Thus, it is confirmed whether the signature entered on the document is true or not even after the electronic document is printed and copied and is subjected to editing, deletion, movement, or the like.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for creating documents with signatures and seals, and in particular, the authenticity of signatures and seals can be determined even after documents such as electronic documents are printed and copied. This document relates to a document creation method that allows confirmation of

[Conventional technology]

Recently, with the spread of word processors, most documents in offices have come to be converted into type.

Although it has become more convenient, it has become difficult to determine the origin of the document, as the document has the same font no matter who created it. Therefore, a method was devised to affix a handwritten signature or seal impression of a creator or approver to a document.

Conventionally, as this type of signature system, for example,
As described in Publication No. 249166 "Electronic seal or signature device," a seal or signature is input as a digital signal from a signature device equipped with a pressure sensor, and this digital signal is converted into image data by an image processing device. ,
By displaying the stamp or signature converted into image data over the document on a display device and storing it,
A signature/seal method for performing verification is known.

[Problem to be solved by the invention]

In the conventional signature system described above, even a person other than the original person can imitate the original person's signature and write it on a document.

Moreover, once handwritten characters and seal impressions are digitized, they can be easily copied or deleted. Additionally, a signature used on one document can be written on another document by copying, moving, or other means. copy.

Since the signature and seal that has been deleted or moved and is forged is originally the signature and seal of the person himself/herself, even if the person himself/herself looks at it later, the authenticity cannot be confirmed.

Forged documents can be easily created using the methods described above. The problem is that once a document with a forged signature is printed, there is no way to verify the authenticity of the signature. In a well-copied signature,
Even I myself can't judge. Moreover, if it is a copy of a genuine signature, even the person himself will not be able to confirm whether it was his own signature on the document.

Therefore, even after a document has been printed or copied, edited, deleted, moved, etc., it would be convenient to be able to confirm whether the signature on the document is genuine.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to overcome the above-mentioned problems of the prior art and to add certain special information to the signature and seal after the electronic document is printed, copied, edited, deleted, moved, etc. However, the objective is to provide a document creation method that can confirm the authenticity of a signature written on a document.

[Means to solve the problem]

In order to achieve the above object, the document creation method of the present invention has the basic concept of writing a signature (entered by hand) on a document as image data, and transmitting information identifying the signer to the signer and his/her related parties. It is characterized by providing a means for encrypting and writing into the document according to rules that can only be understood by a person (a person authorized by the person). Information that identifies the signer includes the date and time the signature was placed on the document, the location where the signature was placed, the document where the signature was placed, the identity of the signer, and the characteristics of the signature itself (handwriting).

A specific method for signing a document and writing encrypted signer identification information is to place a signature input from a handwriting device at an appropriate position on a document prepared using a document recall function or a document creation function, and , the signer identification information is encrypted and the encrypted data is placed at an appropriate position (predetermined position W) of the document (near the signature).

Alternatively, you can print out a certain document, take it out, sign it with a pen, etc., or stamp it with a seal, etc. to create an original document, and then read this original document with an image input device (scanner) to automatically remove only the signature part or the stamped part. The extracted signature portion and the encrypted data of the signer identification information obtained as described above are configured to be written at appropriate positions in the original document.

Rules for encrypting information identifying the signer are determined in advance by the signer himself and registered in the signature registration table. Therefore, these rules and the method of generating them are unique to the signer and his or her associates, and are completely unknown to anyone other than the signer and his or her associates, but they are immediately visible to the signer and his or her associates. It is understandable.

Here, an outline of a signature and encrypted data writing and confirmation method to which the present invention is applied will be explained.

First, a handwritten signature is written as image data on a document, and at the same time information about the signature is also written beside the signature. Extract features from signature image data,
A signature is identified from a signature registration table registered in advance. Next, if the password input by the signer matches the password corresponding to the identified signature, a number string (or character string) indicating that the signature is genuine is set as the signature password number. If the password is invalid, a number string (character string) indicating that the signature is fake is set as the password number. As mentioned above, the method for generating this number string (character string) is based on rules determined by the signer himself, so it is difficult for the general public to discover the regularity.

In the signature registration table, the rules decided by the above person are as follows:
For example, signature date numbers, machine ID generation rules, and document information extraction rules are registered.

Number strings (or character strings) obtained by those generation methods
are set as the date number and machine ID of the signature, respectively, and the character string extracted according to the extraction rule is set as the document information.

Writes the configured information in the document at the specified position near the signature.

Furthermore, the input handwritten character data (signature itself) and password are stored in a signature storage table for each signature along with date and time information and document information.

[Effect]

The effect based on the above configuration will be explained.

According to the present invention, each of the encrypted information described above is attached to a signature written on a document. If you promise that your signature will not be recognized without this information,
A third party cannot cut out only the signature part and use it alone. This information remains with printed documents and documents that are copied. This makes it possible to determine the authenticity of even a copy of a document.

Among these pieces of information, the password number implies whether the signature is genuine or not. This cannot be determined by the general public, but it is something that can be easily determined at a glance by the person himself and some people he recognizes.

Furthermore, if the person who signed the fake signature happened to know the password, the password number is correct, so even the genuine person may not be sure whether the signature was written by him/herself based on this information alone. Therefore, the date number, machine ID,
The authenticity of the signature can be confirmed by checking from the document information whether the person was accessing the document using the machine at that time.

Furthermore, by saving all input signature image data together with signature information, even if a document with an unclear signature appears later, it is possible to check and verify the original signature. I can do it. The above explanation also holds true even if "signature" is replaced with "single seal".

〔Example〕

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

FIG. 1 is a diagram showing the equipment configuration of a document processing system for realizing the document creation method according to the present invention. The document processing system includes a storage device 101, a processing device 102, a handwriting input device 103, a display device 104, a printing bag 2105, and an image input device. FIG. 2 is a configuration diagram of the storage device 101.

As shown in FIG. 2, the storage device 101 stores current time information 201, machine ID 202, password 203, and document data 204. Of these data, those required by the processing bag N102 are called up one after another.

The procedure for creating a celebrity document is as shown in FIG.

(1) Prepare a document in the processing device 102 by reading the document from the storage device 101 or creating a new document in the processing device 102 (processing 301).

(2) Signature data is read from the handwriting input device 103 (process 302).

(3) Place the input signature at an appropriate position in the document (process 303). At this time, the document is displayed on the display device 104 together with the signature.

(4) Create encrypted data according to a certain predetermined rule (process 304).

(5) Place the created encrypted data at an appropriate position relative to the signature position of the document (process 305).

Next, an example of creating encrypted data will be described.

In the signature registration table 205 of the storage device 101, encryption rules (conversion formulas, etc.) for 0 various data and the arrangement positions of the encrypted data are written. Encrypted data, location, and encryption rules can be set for each registrant (document creator, signer). FIG. 5 shows an example of a document 502 containing a signature 501 accompanied by the following information (encrypted data).

Date number 503: Upper left part of signature: 10-digit number string,
The first 4 digits (“9987”) are random numbers, the next 4 digits (“8902”)
) is the year and month, and the last two digits (13") are (day - 1).

Rearrange the two machine TDs in the upper right corner of the machine ID 501 signature upside down.

Password number 505: Lower right part of celebrity: (If password is correct) 4-digit number, sum of each digit number - 10
゜Document information 506: The 5th, 10th, and 15th characters extracted from the beginning of the main text 50B of the two documents in the lower left part of the signature.

As information on the signature body 507, a value obtained by extracting features of image data (features of handwriting) and converting them into numerical values is registered.

The above portions 503 to 506 correspond to the portions encrypted according to rules selected by each signer and understood only by each signer.

All inputted signature data passwords are stored in the signature storage table 206 along with time information and the like for each document, so that documents by famous people created by the machine can be searched later. Storing all signatures has the effect of psychologically preventing signature forgery.

Next, another procedure for creating a celebrity document will be explained with reference to FIG.

(1) Prepare a document in the processing device 102 (process 401)
.

(2) Print the document using the printing device 105 (processing 402)
.

(3) Write a signature with a pen (or affix a seal) at an appropriate position on the printed document (process 403).

(4) A signed (stamped) printed document is sent to the image input device 10
6 (processing 404).

(5) Signature (seal) image data and signature (seal) rank 1 2 The location is confirmed (process 405).

(6) Arrange signature (seal) image data at the signature (seal) position on the document prepared in process 401 (process 406).

(7) Create encrypted data (process 407).

(8) Place the encrypted data at an appropriate position in the document obtained in process 406.

〔Effect of the invention〕

As explained in detail above, according to the document creation method of the present invention, by adding additional information that only the signer and his/her related parties can understand to the signature written on the electronic document, the document can be temporarily printed or copied. The additional information is valid information even after the signature is sent, and has the effect that the authenticity of the signature can be confirmed.

Additionally, by adding a password number to the signature, only the signature registrant and a third party authorized by the registrant can view the displayed or printed document and know the "signer identity." Make the most of your efforts.

Furthermore, by adding a document symbol, it is possible to confirm whether the signature was written on the document and not by copying it from another document.

Furthermore, the date/time number and machine number identify the place (machine) and time when the signature was made, so if you are unsure whether the signature was written by yourself or not, you can By investigating the situation at that location, you can indirectly be sure that the signature was made by yourself.

As a final method, documents with forged signatures can be discovered by extracting the original signature data from a signature storage table that stores all input signature data along with other information and performing handwriting analysis. A similar effect can also be obtained in the case of sealing, which is an excellent effect.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a configuration diagram of a document processing system to which an embodiment of the present invention is applied, FIG. 2 is a configuration diagram of the storage contents of a storage device, and FIG.
Figure 4 is a flowchart showing one embodiment of the document creation procedure, Figure 4 is a flowchart showing another embodiment of the document creation procedure, and Figure 5 is a document created by a famous person according to an embodiment of the present invention. It is a figure which shows an example. 101......Storage device, 102...
. . . Processing device, 103 . . . Handwriting device, 104 . . . Display device, 105.
......Printing device, 106...
Image input device, 201... Time information, 2
02... Machine ID, 203...
...Password number, 204...Document data, 205...Signature registration table, 206...Signature storage table, 301
......Document preparation processing, 302...
. . . Handwritten input processing, 303 . . . Signature placement processing, 304 . . . Encryption processing, 30
5...... Code placement processing, 401...
...Document preparation processing, 402...Print processing, 403...Signature (seal) processing, 4
04... Image input processing, 405...
...Image recognition processing, 406...Signature (seal) placement processing, 407...Encryption processing, 408... Cipher placement processing, 501
......Signature, 502...Document, 503...Time information, 504...
...Machine ID, 505 Password number, 50
6...Document information. 5 Figure 4

Claims (1)

[Scope of Claims] 1. A means for creating a document with a signature or seal, and information identifying the signer or sealer, which is known only to the signer or sealer and a person authorized by the signer or sealer. A document creation method comprising: means for encrypting according to rules; and means for writing encrypted data at a predetermined position of the document. 2. The means for creating the document bearing the signature or seal is:
2. The document creation method according to claim 1, comprising means for creating a document, means for inputting a handwritten signature or seal, and means for arranging the input signature or seal at a predetermined position on the document. 3. The means for creating the document bearing the signature or seal are:
a means for printing a document; a means for inputting an original signed or stamped on the printed document; and a means for automatically cutting out a signature or stamped part of the inputted original and converting the part together with the encrypted data into the original document. 2. The document creation method according to claim 1, further comprising writing means. 4. The information specifying the signer or sealer includes at least one of the date and time of the signature, the location of the signature, the identity of the signer, and information on the document on which the signature was applied. Document creation method.