Credit sign accidental streakline generating method

A credit and identification technology, which is applied in security communication devices, user identity/authority verification, digital transmission systems, etc., can solve problems such as easy to be scanned and copied, unable to identify authenticity, etc.

Inactive Publication Date: 2008-04-16
唐文凯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, once the electronic images of seals, emblems, and personal signatures signed under this method are printed on paper documents, they are also easy to be scanned and copied, making it impossible to identify authenticity

Method used

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  • Credit sign accidental streakline generating method
  • Credit sign accidental streakline generating method
  • Credit sign accidental streakline generating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention relates to a method for generating random ridges of credit identifications. The following describes in detail how the present invention is realized in conjunction with the accompanying drawings:

[0029] As shown in Figure 1:

[0030] Step 111: Prepare a computer electronic file to be signed in the computer system; Step 112; prepare an electronic image of the credit identification pattern to be used (such as an overseal stamp); Step 112; use the content of the electronic file in step 111 as the data source, The column function calculates the hash value step 120; encrypts the hash value with the asymmetric key in the RSA digital signature technology system step 130; obtains a digital signature value with a length of 1024 bits (bit) step 140; The geometric area of ​​the seal (such as a seal) is limited, the data for generating the digital pattern is too long, and there are many characters. In the limited geometric area of ​​the seal, the more charact...

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PUM

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Abstract

The invention discloses a method for generating the random lines of a credit identifier. An electronic document waiting for being signed with a credit identifier figure is prepared in a computer system, and the content of the electronic document is used as a data source, which is imported into a hashing function in order to work out a hashing value; the hashing value is encrypted with asymmetric keys, so that digital signature values are obtained; according to the geometric shape of the credit identifier figure, the group of values are arranged and distributed into a digital figure, which overlaps the credit identifier figure, and the overlapping parts of the strokes of the digital figure and the lines of the credit identifier figure become line tracks, so that the random lines of the digital signature of the credit identifier are formed.

Description

technical field [0001] The invention relates to the anti-counterfeiting technology of credit documents, in particular to a method for generating random lines of credit identification digital signatures in the implementation of electronic government affairs and electronic commerce. Background technique [0002] In human society, people need to exchange interests, and in the exchange of interests, certificates with credit marks are often used, that is, what we usually call "seal documents" or "signature documents". [0003] The Chinese government stipulates that “documents are sealed and effective”. There are a large number of documents to be sealed in government work, and a large number of contracts need to be sealed in the business work of enterprises. [0004] Other countries have such provisions, such as the use of a seal or emblem, or the use of a personal signature. [0005] In daily life, our common seals or emblems only represent a unit, institution or an individual. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32
CPCH04L9/3247H04L2209/60H04L9/3236
Inventor 吴建明
Owner 唐文凯
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