WO2009070926A1

WO2009070926A1 - Method of attaching symbols to signet and signet attained thereby

Info

Publication number: WO2009070926A1
Application number: PCT/CN2007/003417
Authority: WO
Inventors: Jianming Wu
Original assignee: Jianming Wu
Priority date: 2007-12-03
Filing date: 2007-12-03
Publication date: 2009-06-11

Abstract

A method of attaching characters to the pattern of a signet and the signet attained by the method are disclosed. The method attaches computer processed data strings to the pattern of a signet, wherein the data strings are the content of a file processed by computer.

Description

A method of marking a stamp and a stamp obtained by the method

Technical field

The present invention relates to graphics recognition and file security techniques, and more particularly to a method of further adding signatures to stamps. Background technique

In social life, when it is necessary to express exclusive rights or credits on a document, a stamp with a fixed pattern is often used as a representative symbol for the "individual" or "legal person" of the signed document.

Such patterns are generally fixed, such as: the totem of primitive society, the family crest of Western society, and the seals and signatures of people's politics and business activities.

However, this stamp is only a single function of the above-mentioned "individual" or "legal person". For example, this stamp pattern does not reflect the content characteristics of a particular document with each use.

In modern office, a large number of computers are used to process various files, and gradually replace the way people write documents. When inserting such a pattern stamp indicating exclusive rights or credits in a computer electronic file, since the recognition of the pattern stamp belongs to the pattern recognition of the image, it is only the recognition of the geometric shape of the graphic, and it is difficult to recognize the true use of computer technology to imitate the pattern stamp. False, it is easy to bring the consequences of forged documents. , the content of the invention

In order to solve the above problems of the prior art, the present invention provides a method of attaching a computer data mark to a stamp during use of the stamp, which can be made not only as an individual or an organization in the file processing of a modern computer office. The function of the identity mark of the group, etc., and enables the stamp to reflect the computer data characteristics associated with the file content each time it is used.

The marking method of the stamp according to the present invention includes, when the stamp is used, attaching a data symbol or symbol string that the computer can process to the stamp pattern. In the above method, the symbol or symbol string is a computer binary or hexadecimal data string used to mark the data characteristics of each signed file content of the same stamp pattern. 'When using a graphic stamp indicating exclusive rights and credits, it marks the characteristics of a document content used for each signature, which can effectively prevent the falsification of the pattern stamps and their documents that represent the exclusive rights and credits of others. DRAWINGS

Figures 1 and 2 show a schematic representation of a stamp pattern before and after the method of the present invention. detailed description

Embodiments of the present invention will be described in detail below with reference to the embodiments.

In order to mark the authenticity of each use of the stamp, when using this stamp, a computer binary data string indicating the contents of the signed document is attached to the stamp pattern, and the data used on one document for marking the same stamp pattern is true. Sex.

For the convenience of human visual reading, this binary data string is converted into a readable and recognizable hexadecimal character.

The specific implementation steps are as follows.

In the first step, the binary data string is calculated by the computer based on the contents of the file signed by the signature indicating the exclusive right and the credit, for example, using a hash function in the digital signature. In addition, you can continue to convert this binary data string into a hexadecimal number and wait for it.

In the second step, according to the geometry of the pattern stamp, the position of the data stamp can be written to the position of the data, and the data of the first step is superimposed on the determined position area. At this time, the data can be miniaturized or color-like color-valued to maintain the geometry and appearance of the original pattern stamp.

In the third step, the computer electronic file that signs the stamp is saved, or the document is printed into a paper-like physical form using a computer-controlled digital printing device.

The fourth step, after receiving the file with the above stamp, recalculating the file content using the same algorithm as generating the binary data string, generating a binary data string, and comparing the obtained data string with the additional data string in the stamp pattern. , when the results are consistent, it can be confirmed The document signing the above stamp is true.

Since 4-bit binary data can be converted into a hexadecimal number, the longer the binary data data, the stronger the uniqueness of the file represented. Therefore, the binary data used to mark different files of the same stamp pattern needs to be used. A string divisible by 4.

Figures 1 and 2 show a schematic representation of a stamp pattern before and after the method of the present invention. The 40-bit hexadecimal number indicated by reference numeral 2 in Fig. 2 is obtained by converting the 160-bit binary data generated by the method of the present invention. Of course, the amount of data of the binary number can be not limited to 160 bits. In addition, the displayed position may not be limited to the position shown in the drawing.

The advantages of the invention are:

The file object used by the stamp pattern can be marked to clearly know the authenticity of the specific file content data each time the stamp pattern is used, and to prevent the falsification of the pattern stamp indicating the exclusive right and credit of others and the behavior of the file.

Claims

Rights request:

A method of attaching a mark to a stamp, characterized in that a data character or a character string processed by a computer is attached to the stamp pattern when the stamp is used.

2. The method of claim 1, wherein the character or character string is a binary data string, or a hexadecimal character obtained by converting the binary data.

3. The method of claim 2, wherein the binary data string is obtained by computing the file content data of the signed file of the stamp.

4. The method of claim 3, wherein the operation employs a hash function algorithm.

5. The method of claim 2, wherein the binary data string is divisible by 4.

6. A marker characterized by the addition of computer-processed data characters or strings to a pattern of indicia.

7. The marker according to claim 6, wherein the character or character string is a binary data string, or a hexadecimal character obtained by converting the binary data string.

8. The marker of claim 7, wherein the binary data string is divisible by four.

9. The marker of claim 7, wherein the binary data string is computed by computing file content data of a file signed by the stamp.