JP2006163540A - Signature data generator and signature data generation program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To generate a unique character string, which cannot be generated again, to be used as a signature for each signature. <P>SOLUTION: A signature data generator comprises a first inputting device 17 for receiving the input of name data 41; a time displaying means 21 for displaying current time; a signature data generating means 22 for generating signature data 43 that are obtained by performing arithmetic processing of data acquired from the first inputting device 17 and the time displaying means 21 by a preset arithmetic expression and comprise a minimum number of characters or larger and a maximum number of characters or smaller being preset in advance; an output controlling means 23 for outputting the signature data 43; and a data storage controlling means 25 for generating collation data 44 in which the name data 41 is associated with the signature data 43 for storing in a storage 30. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a signature data generation apparatus and a signature data generation program used for personal authentication applications such as contracts.

It is common to use a user code and password to identify the person on the network. A seal is used to verify the identity of the contract. Autographs are common in foreign countries. In addition, electronic signatures have begun to spread in order to illuminate the origin of digitized documents (Patent Document 1).
JP 2004-320648 A

Here, the conventional technique has the following problems to be solved.
Seals can be counterfeited by using the latest copying technology. Therefore, it is hard to say that it is safe. Also, the signature is not yet familiar to Japanese society, and it is not easy to judge that it is the person's own. Automatic verification by computer is also difficult. In the information processing field of computers, there are certificate authorities that register predetermined electronic signatures, but their authentication codes are constant, and it is difficult to guarantee security for a long period of time. Therefore, the authentication code is updated every year. In any case, counterfeiting is inevitable as long as the same signature is used each time.
The present invention has been made paying attention to the above points. Signature data generation is performed by generating a character string that is so unique that signature cannot be generated every time a signature is used, and this is used as signature data. An object is to provide a device and a signature data generation program.

In each embodiment of the present invention, the above-described problems are solved by the following configurations.
<Configuration 1>
A first input device that accepts input of name data; time display means for generating current time data; name data accepted by the first input device; and current time data acquired from the time display means. Signature data generating means for generating signature data consisting of a character string not less than a preset minimum number of characters and not more than a maximum number of characters, which is obtained by arithmetic processing using a preset formula, and the signature data An apparatus for generating signature data, comprising: output control means for outputting; and data storage control means for generating collation data in which the name data and the signature data are associated with each other and storing them in a storage device.

  The same signature data generated by combining the name of the user and the time information of the signature cannot be made again. If the signature data is composed of a large number of characters that cannot be identified, tampering is impossible. Since the reproduction is impossible unless the signature time and the arithmetic expression are determined, the signature data is surely unique. If you save the verification data that matches the signature data and name, you can check whether the signature data was created by the person. If the collation data is stored in a publicly reliable organization and can be viewed, a third party can confirm the reliability of the signature. Since the document to which the signature is written may be a paper document or an electronic document, it is highly versatile.

<Configuration 2>
The signature data generation device according to Configuration 1, further comprising: a second input device that receives input of data for identifying a person other than name data, wherein the signature data generation means receives name data received by the first input device. And data obtained by identifying the person other than the name received by the second input device and the current time data acquired from the time display means by a calculation process using a preset calculation formula. A signature data generating apparatus that generates signature data composed of a character string not less than a preset minimum number of characters and not more than a maximum number of characters.

  For example, if address information other than the name, company name information, etc. are included, unique signature data can be easily created.

<Configuration 3>
The signature data generation device according to Configuration 1, comprising signature expression change processing means for changing the calculation formula at a predetermined timing each time the signature data generation device generates signature data. Generator.

  For example, the arithmetic expression may be sequentially changed and used by another arithmetic expression so that the analogy of the arithmetic expression by another person is impossible.

<Configuration 4>
The signature data generation apparatus according to Configuration 1, wherein the character group constituting the signature data is arranged in a predetermined rule within a frame of a predetermined shape.

  For example, when signature data is printed on a contract or the like and output, a simple character string does not look good as a signature. By arranging the frames in a frame of a predetermined shape according to a predetermined rule, it becomes clear that the signature is good and it is a specific digitalized signature.

<Configuration 5>
A first input device for receiving input of name data; a second input device for receiving auxiliary data acquired when inputting name data other than the name data; name data received by the first input device; Generates signature data consisting of a character string not less than the preset minimum number of characters and not more than the maximum number of characters, obtained by performing arithmetic processing on the auxiliary data received by the input device 2 according to a preset arithmetic expression. Signature data generation means, output control means for outputting the signature data, and data storage control means for generating collation data in which the name data and the signature data are associated with each other and storing them in a storage device A signature data generation device characterized by the above.

  When inputting name data, this apparatus acquires, as auxiliary data, the stroke order and stroke image data in which the name is input. The auxiliary data is preferably a kind of data that cannot be obtained with exactly the same contents. Thus, unique signature data can be generated without including the current time data.

<Configuration 6>
A first input device for receiving input of name data; time display means for generating current time data; name data received by the first input device; and current time acquired from the time display means Signature data generation means for generating signature data consisting of a character string not less than a predetermined minimum number of characters and not more than a maximum number of characters, obtained by performing arithmetic processing on data according to a predetermined arithmetic expression, A signature data generation program which functions as output control means for outputting signature data, and data storage control means for generating collation data in which the name data and the signature data are associated with each other and storing them in a storage device .

<Configuration 7>
A first input device that accepts input of name data; a second input device that accepts auxiliary data acquired when entering name data other than the name data; and name data received by the first input device; The signature obtained from the auxiliary data received by the second input device by a calculation process using a preset arithmetic expression and comprising a character string not less than the preset minimum number of characters and not more than the maximum number of characters. Signature data generation means for generating data, output control means for outputting the signature data, and data storage control means for generating collation data in which the name data and the signature data are associated with each other and storing them in a storage device A signature data generation program characterized by functioning.

  Hereinafter, embodiments of the present invention will be described in detail for each example.

FIG. 1 is a block diagram showing a specific example of a signature data generation apparatus according to the present invention.
The illustrated apparatus is realized by the personal computer 10. The personal computer 10 includes a main body control unit 11, a display 12, a keyboard 13, a mouse 14, and a digitizer 15. In addition, a printer 16 for outputting the calculation processing result is connected.

  An arithmetic processing device 20 and a storage device 30 are provided inside the main body control unit 11. The illustrated apparatus includes a first input device 17, a second input device 18, a time display unit 21, a signature data generation unit 22, an output control unit 23, an arithmetic expression change processing unit 24, and a data storage control unit 25. Prepare. Both the first input device 17 and the second input device 18 are realized by the keyboard 13, the mouse 14, or the digitizer 15. That is, by operating these, a name for signature is input to the computer.

  Each means included in the arithmetic processing unit 20 includes a computer program that causes a computer to execute predetermined processing. The time display means 21 has a function of generating and outputting the current time by a program timer or the like. The current time data 42 generated in the time display unit 21 is supplied to the signature data generation unit 22. The name data 41 input by the first input device 17 is input to the signature data generation means 22. The signature data generation unit 22 has a function of performing arithmetic processing on data acquired from the first input device 17 and the time display device 21, that is, the name data 41 and the current time data 42 using a predetermined arithmetic expression. .

  Specifically, the signature data generation unit 22 applies various arithmetic processes to the data to generate the signature data 43 including a predetermined character string. The signature data 43 is a character string not less than a preset minimum number of characters and not more than a maximum number of characters. The signature data 43 is accepted by the output control means 23 and printed out by the printer 16, for example. Alternatively, the signature data 43 is output to be written in a predetermined area of the document data file 45.

  The document data file 45 is displayed on the display 12, and the contents can be confirmed. Further, the signature data 43 generated by the signature data generation unit 22 is transferred to the data storage control unit 25 together with the name data 41. The data storage control unit 25 associates the name data 41 and the signature data 43 to generate collation data 44. This collation data 44 is stored in the storage device 30. The storage device 30 stores collation data 44, a document data file 45 in which signature data 43 is written, and an arithmetic expression 33 used when generating signature data.

  The arithmetic expression change processing means 24 has a function of supplying the arithmetic expression 33 read from the storage device 30 to the signature data generating means 22. For example, each time the signature data generation unit 22 executes processing for generating the signature data 43, the arithmetic expression change processing unit 24 selects one of the plurality of arithmetic expressions 33 at random or in a fixed order. Supply. Therefore, the signature data generation unit 22 executes the calculation process using a new calculation formula every time the signature data is generated. The switching of the arithmetic expression 33 can be executed in a span of every hour, every day, every month, for example.

  Note that the second input device 18 includes, for example, a digitizer 15. In this case, when the name data 41 is input using the digitizer 15, the writing order and other various information are acquired and input to the signature data generation unit 22 in a state where the information is added to the name data 41. For example, by acquiring information indicating the stroke order or the shape of the character, and combining it with the character code of the name to form the name data 41, for example, even if the same name is the same name, Different name data 41 can be obtained.

  The object of the present invention is to distinguish between signatures and to ensure that each signature is unique. Therefore, in the case where there is the same surname and the same name, not only the character code but also various information for identifying the person is inputted in combination to guarantee the uniqueness of the name data.

FIG. 2 is an explanatory diagram for specifically explaining the operation of the signature data generation apparatus of the present invention.
As shown in the figure, information for generating name data is input to the apparatus of the present invention using various input devices. For example, when a keyboard is used, kana codes such as romaji or hiragana are acquired in addition to kanji data subjected to kanji conversion. Furthermore, if a method of writing a character using a digitizer and recognizing the pattern to obtain a character code is employed, not only the character code but also data such as the character writing order can be acquired to identify the person. This will be described later with reference to FIG.

  Examples of various information for identifying the person include information such as a telephone number, a facsimile number, and an address. Whether or not to include this may be selected by each person. The encoding table 51 is a part of the arithmetic expression 33 supplied to the signature data generation unit 22. The switching signal 52 is data for switching the coding table 51. For example, the coding table 51 has a function of switching one after another every time signature data is generated. Character codes can be arranged in the order of input, arranged in reverse order, or the encoding method can be changed. This also provides a function of generating different character codes even if the same name is input every time. For example, as shown in this figure, first, data input from the first input device 17 or the second input device 18 is encoded. The encoding method is a simple arrangement or combination of character codes and numeric codes.

  Specifically, this is done. The time data includes the year, month, day, hour, minute, and second. For example, the input character code is arithmetically processed by a plurality of arithmetic expressions or conversion tables to generate a plurality of other character codes. When the number of characters to be generated is about 50, a character string composed of a large number of characters that cannot be identified is obtained. Further, these character strings are mixed with a unique character string generated from the time data. The time data is a character string of about 15 digits. These character strings are arranged according to a predetermined arrangement rule.

  The character code X output from the encoding table 51 and the current time data 42 (displayed as Y in this figure) output from the time display means 21 (FIG. 1) are arithmetically processed by the arithmetic expression 33. The switching signal 53 has a function of switching the arithmetic expression 33 every time signature data is generated. A large number of arithmetic expressions may be prepared and switched alternately, or an arithmetic expression for generating an arithmetic expression is prepared in advance, and the arithmetic expression is changed each time.

  When the signature data Z is generated in this manner, the signature data as a whole is a sequence of characters that are arranged at least the predetermined minimum number of characters and below the maximum number of characters. These character strings are arranged with a specific pattern 61 in a frame 60 as shown in the figure for signature processing, for example. The frame 60 may be a frame actually surrounded by a line or a virtual frame, that is, a frame surrounded by a transparent line. For example, character strings constituting signature data Z generated in a horizontally long ellipse frame as shown in FIG.

  This is output instead of the seal of the contract or the seal of the certificate. The frame and the array are stored in the array pattern memory 55, for example. Various arrangement patterns such as frames 56, 57, and 58 are prepared in advance, and any one of these is selected and output. The selection of the array pattern may be automatically performed by the switching signal 53, or the selection may be performed according to the user's request.

FIG. 3 is an explanatory diagram for explaining a procedure for acquiring and processing information other than the character code of the name by inputting the name.
This figure shows the contents of data acquired when a name is input by a digitizer. When the name is input by the digitizer, the image data is acquired in the order of L1, L2, and L3 as shown in the figure. If the ordinate and abscissa are set as shown in the figure, the coordinate point sequence acquired at that time is L1 (0e, aa, bb, cc, dd, ee, ff, gg, hh) as shown in the figure. , ii, jj), L2 (0a, ee, ff, hh, ii, jj: jj, 0a, 0b, 0c, 0d, 0e, 0f, 0g, 0h, 0i), L3 (0i, ee, ff, gg) , hh, ii, jj). There are individual differences depending on the habit of the person who entered the name. Therefore, it becomes data for identifying the person who is difficult to duplicate. Therefore, the data is suitable for signing a character string, a license, a bank passbook, and various procedure documents constituting a seal. In addition to this, address data, reading data of names, and the like may be acquired by the second input device and output to the signature data generation means.

  According to the above method, in addition to the character code acquired by inputting the name, the coordinate point sequence data of the writing order and stroke acquired when writing the name can be used for signature data generation. The method of using the digitizer and the method of entering characters are slightly different for each person. Therefore, unique coordinate point sequence data can be acquired each time. Therefore, signature data that cannot be reproduced again can be generated without including the current time data. The first input device may acquire character codes, addresses, and good data, and the second input device may acquire data such as strokes. Note that even signatures that use exactly the same kanji may be read differently. In this case, the same family name and the same name can be distinguished by generating collation data by combining the Roman character and the converted Kanji character when the Roman character is input.

FIG. 4 is an operation flowchart of the apparatus of the present invention.
With reference to this flowchart, an example of an operation procedure by the computer program of the above apparatus will be described.
As an example of the flowchart, an example in which the name data 41 is input using the digitizer 15 will be described. First, in step S11, the digitizer output is received. In step S12, the coordinate point sequence data acquired from the digitizer is stored in the storage device of the computer. In step S13, the stored coordinate point sequence data is analyzed to extract feature points. This process may be the same as that conventionally performed to perform a character recognition process for characters input by a digitizer.

  In step S14, input order data is acquired. Information on the order in which the coordinate point sequence data is input is fetched. As a result, not only the character code of the recognized character but also information corresponding to the writing order is acquired as information for identifying the person. In step S <b> 15, current time data at the time when the input from the digitizer is completed is acquired from the time display means 21. In step S16, character recognition processing using feature points is executed.

  In step S17, the character code is converted for the corresponding character. Next, in step S18, the coding table 51 that has been set so far is forcibly switched to a new coding table. In step S19, a code X is generated by encoding using the encoding table 51. The code X is data combining the character code of the recognized character and the character writing order.

  The data corresponding to the writing order is, for example, A when the top-to-bottom is A, left-to-right is B, bottom-to-top is C, right-to-left is D, and is written from top to bottom and folded from left to right. Thus, it is possible to easily convert only the directionality into data. When character recognition is performed, the acquired character image is placed in a certain frame and normalized. At this time, detailed information indicating from which coordinate each line constituting the character is entered may be converted into data. In other words, this is an array of feature point coordinate data, and by combining the character code of the recognized character, extremely unique data can be generated as described above.

  In step S20, the arithmetic expression 33 is forcibly switched. In step S21, arithmetic processing using X and Y is executed according to the arithmetic expression. In step S22, a predetermined array pattern is selected from the array pattern memory 55 stored in the storage device. In step S 23, collation data 44 is generated by combining the name data 41 and the signature data 43, and is stored in the storage device 30. The collation data 44 stored in this way is stored in, for example, a computer that manages the signature or a computer of the management service company that requested the signature.

  For example, if an attempt is made to check whether a certain signature is the original one, the signature is sent to the management service center. Since the signature data is unique, if the signature data is selected as a key, the corresponding name data can always be obtained. Therefore, there is no need for information such as which document has been signed other than the name data and signature data associated with each other. To increase security, it is better not to add such information.

  Since the array pattern is one element, it is preferable to include the array pattern in the collation data 44 in addition to the name data 41 and the collation data 44. Thus, in step S24, for example, by including signature data in the document data file, a signature just like a seal stamp is input to the digitized document. Even if this signature is made by the same person, it is unique each time, so it is invalid to copy it and use it elsewhere.

  If the date when the verification data 44 is generated is confirmed, it can be proved that the signature data is clearly invalid even if it is used for another document because of the correspondence with the document in which the signature data is used. Of course, this signature data can be printed on an arbitrary document using a printer. Since the signature data generated as described above cannot be made twice even by the person himself, the security is extremely high, and since it cannot be stolen, it can be used for digitized data.

  As described above, when a name is input, the device of the present invention generates a unique character string based on the name and current time data, and generates an array pattern that can be used as a substitute for a seal, etc. It can generate shading for authentication that cannot be counterfeited.

It is a block diagram which shows the specific example of the signature data generation apparatus by this invention. It is explanatory drawing explaining operation | movement of the signature data generation apparatus of this invention concretely. It is explanatory drawing explaining the procedure which acquires and processes information other than the character code of a name by the input of a name. It is an operation | movement flowchart of the apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Personal computer 11 Main body control part 12 Display 13 Keyboard 14 Mouse 15 Digitizer 16 Printer 17 1st input device 18 2nd input device 20 Arithmetic processing device 21 Time display means 22 Signature data generation means 23 Output control means 24 Calculation formula change Processing means 25 Data storage control means 30 Storage device 33 Arithmetic expression 41 Name data 42 Current time data 42
43 Signature data 43
44 collation data 45 document data file 46 document data file

Claims (7)

A first input device for receiving input of name data;
Time display means for generating current time data;
The name data received by the first input device and the current time data acquired from the time display means are obtained by arithmetic processing according to a preset arithmetic expression, and the preset minimum Signature data generation means for generating signature data consisting of a character string not less than the maximum number of characters and not more than the maximum number of characters;
Output control means for outputting the signature data;
A signature data generation apparatus comprising: data storage control means for generating collation data in which the name data and the signature data are associated with each other and storing the collation data in a storage device. The signature data generation device according to claim 1,
A second input device that accepts input of data for identifying the person other than the name data;
The signature data generating means
Name calculation data received by the first input device, data specifying an individual other than the name received by the second input device, and current time data acquired from the time display means are set in advance. A signature data generation apparatus that generates signature data that is obtained by performing arithmetic processing using an expression and includes a character string that is greater than or equal to a preset minimum number of characters and less than or equal to a maximum number of characters. The signature data generation device according to claim 1,
An apparatus for generating signature data, comprising: an arithmetic expression change processing means for changing the arithmetic expression at a predetermined timing each time the signature data generating apparatus generates signature data. The signature data generation device according to claim 1,
A signature data generating apparatus, wherein the character group constituting the signature data is arranged in a predetermined rule within a frame of a predetermined shape. A first input device for receiving input of name data;
A second input device for receiving auxiliary data acquired when inputting name data other than the name data;
It is obtained by computing the name data received by the first input device and the auxiliary data received by the second input device using a preset calculation formula, Signature data generation means for generating signature data consisting of a character string not less than the maximum number of characters and not more than the maximum number of characters;
Output control means for outputting the signature data;
A signature data generation apparatus comprising: data storage control means for generating collation data in which the name data and the signature data are associated with each other and storing the collation data in a storage device. Computer
A first input device for receiving input of name data;
Time display means for generating current time data;
The name data received by the first input device and the current time data acquired from the time display means are obtained by arithmetic processing according to a preset arithmetic expression, and the preset minimum Signature data generation means for generating signature data consisting of a character string not less than the maximum number of characters and not more than the maximum number of characters;
Output control means for outputting the signature data;
Data storage control means for generating collation data in which the name data and the signature data are associated with each other and storing the collation data in a storage device;
The signature data generation program characterized by being made to function as. Computer
A first input device for receiving input of name data;
A second input device for receiving auxiliary data acquired when inputting name data other than the name data;
It is obtained by computing the name data received by the first input device and the auxiliary data received by the second input device using a preset calculation formula, Signature data generation means for generating signature data consisting of a character string not less than the maximum number of characters and not more than the maximum number of characters;
Output control means for outputting the signature data;
Data storage control means for generating collation data in which the name data and the signature data are associated with each other and storing the collation data in a storage device;
The signature data generation program characterized by being made to function as.

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