CN101719246B - Method for authenticating and fast outputting soft-dog of text electronic seal - Google Patents
Method for authenticating and fast outputting soft-dog of text electronic seal Download PDFInfo
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- CN101719246B CN101719246B CN2009103109077A CN200910310907A CN101719246B CN 101719246 B CN101719246 B CN 101719246B CN 2009103109077 A CN2009103109077 A CN 2009103109077A CN 200910310907 A CN200910310907 A CN 200910310907A CN 101719246 B CN101719246 B CN 101719246B
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Abstract
The invention relates to a method for authenticating and fast outputting the soft-dog of a text electronic seal, comprising making, authenticating and outputting the electronic seal. The method comprises the steps of: setting up the information of the electronic seal, storing the information in a file-type database with a vector manner; carrying out an abstract extraction on the stored file formed by the vector and then writing the extracted abstract into a USB-KEY; in the authentication of the electronic seal, reading the information abstract of the electronic seal from the USB-KEY and carrying out the abstract extraction on the file formed by the vector again; then comparing the abstracts. The invention has the characteristics and advantages that a set of convenient and easy tools for making the text electronic seal, a user only needs to input the seal characters and then uses a mouse to adjust to finish the making of the electronic seal, the dual authentication of the electronic seal and the soft-dog is realized, the uniqueness and the tamper-proofing of the seal are ensured, the anti-forgery function is improved, and the definition of a photo seal is improved by drawing the vector characters and graphics to synthesize the photo.
Description
Technical field
The invention belongs to the digital signature identification technology, particularly a kind of dog of text electronic seal authentication and quick output intent.
Technical background
Electronic signature is the data of electronic form, is the identity of discerning the signer with electronic message (e-file, electronic information) being used to of interrelating and show that the signer approves the data of this electronic message content.Electronic signature is based on the online identity Verification System of international PKI standard; Digital certificate is equivalent to online I.D.; It carries out the online identity authentication with the mode of digital signature through third party's authenticating authority effectively; Help each main body identification the other side identity and the identity that shows self, have authenticity and anti-repudiation function.Different with physical identity card is, digital certificate also has safety, maintains secrecy, anti-tamper characteristic, can effectively protect the transmission with safety to information transmitted on the enterprise network.
E-seal is a Newly Sprouted Things; It has become the habitual signed and sealed (SS) mode of people to electronic signature technology; Make original very mysterious electronic signature, electronic evidence become everybody and can grasp the thing of use; Eliminated the application obstacle of electronic signature, the application that signs electronically has been had very big impetus.
The E-seal technology at first is widely used in offices at different levels.Before Electronic Signature Law was born, the legal force of electronic signature lacked blanket legal provisions, and only in the regulation of internal condition State Council of government relevant document, E-seal has certain validity.After Electronic Signature Law was born, the validity of electronic signature had had blanket legal provisions, and the E-seal technology has also just been walked out the imposing dwelling and spacious courtyards of government bodies, began the service for the public.
From the beginning, E-seal just has clear and definite standard.State Council's relevant document to the system of E-seal send out, manage, use etc. all has clear and definite regulation.But when the E-seal technology is about to be accompanied by Electronic Signature Law and moves towards masses; Owing to be short in understanding to the correlation technique of E-seal even to the key concept of E-seal; Some error understandings and wrong propaganda to E-seal have appearred, some people even take for digital certificate and add that seal image has been exactly an E-seal.What is the E-seal technology on earth so? Is which type of E-seal technology only qualified E-seal technology?
The E-seal technology is simulated traditional seal in kind with advanced digital technology; Its management, use-pattern meet the custom and the experience of seal in kind, and its e-file of adding a cover has the identical outward appearance of the paper document of adding a cover with seal in kind, identical validity and similar use-pattern.It is thus clear that; E-seal never is that simple seal image adds electronic signature; Key is custom and the experience that it uses, whether way to manage meets seal in kind; Whether its e-file of adding a cover has the outward appearance identical with paper document, and use-pattern and paper document have the similarity of much degree.It has following basic characteristics:
One, in whole use, do not relate to new ideas such as certificate, CA, electronic signature technology is hidden in the back of E-seal fully, make people depend daily experience alone and just can use, need not extra study understand these abstruse technology and concepts.
Two, guarantee that seal becomes the effective form of expression of signature.Promptly only when using certain part of e-file of electronic signature technology checking authentic and valid, just normally show seal.We not only need protect textual data with electronic signature technology like this, also will protect seal, avoid the lawless person to usurp the back and on illegal, e-file, show legal seal, thereby confuse right and wrong.
Three, a seal in kind can only corresponding E-seal.Just meet the daily use habit of people so on the one hand, also let the leader just know that with daily experience total total several chapters need management, avoid occurring the situation that seal out of control is existed everywhere on the other hand.
Four, E-seal must be stored in (like USB flash disk) on the removable medium.Such removable medium of having stored E-seal just is equivalent to a seal in kind, can take care of as keeping seal in kind.Even one to the off one's beat general office personnel of technology, also can as before be locked in chapter in the safety cabinet, in cupboard, take out use again after seeing the leader and signing after examination to corresponding chapter, put back to again after using up.
At present, the E-seal on the market is primarily aimed at electronic government documents, and the seal in the official document is general bigger, and is less demanding to the printing precision of the document after affixing one's seal.Some certificate need be stamped an offical seal on head portrait, and high precision certificate head portrait E-seal field is still blank at home.
When the E-seal on the market is applied in this field, some problem below existing:
1, the requirement of the official seal print area on the certificate is smaller, but printing effect again can not be too poor, and the seal on the certificate must be clear.
2, E-seal generally all is with the graphics mode storage, when the figure seal is affixed one's seal certificate photograph in synthetic high precision, and the unavoidable point of mixing that occurs.
3, the certificate operation of affixing one's seal generally is to carry out in batches, therefore requires E-seal that excellent interface is arranged, and guarantees the work of the affixing one's seal operation of can quick, accurate and effective completions batch affixing one's seal.
Summary of the invention
The objective of the invention is to found a kind of dog of text electronic seal authentication and quick output intent; To solve high precision certificate head portrait E-seal problem; The purpose of complete text electronic seal making, authentication method and interface of a cover is set up in realization, and technical scheme of the present invention is achieved in that
A kind of dog of text electronic seal authentication and quick output intent, this method comprise the making and the electron seal identification output of E-seal;
The making step of said E-seal comprises:
A. confirm that USB-KEY connects effectively, sets up E-seal information, said E-seal information comprises size, image, position, the colouring information of literal, literal;
B. said information is stored in the file type data storehouse with approach vector;
C. the formed storage file of above-mentioned vector is carried out abstract extraction;
The summary that d. will extract writes among the USB-KEY;
The authentication output step of said E-seal comprises:
A. confirm that USB-KEY connects effectively, from USB-KEY, reads the E-seal informative abstract, is recorded as SN1;
B. again the formed storage file of said vector is carried out abstract extraction;
C. SN1 that reads and the E-seal informative abstract that recomputates are compared;
D. comparative result is consistent, the photo files data parameters of then importing into the operation of affixing one's seal fast, and the preservation of the photo after will affixing one's seal according to the user, and comparative result is inconsistent, then authentication failed.
The said photo files data parameters of importing into according to the user affixes one's seal to operate fast:
The photo files that the user need affix one's seal is stored with the DBF formatted file;
The absolute path of DBF formatted file is sent to the interface of affixing one's seal;
The seal designs control is put on the graphic presentation control;
When the screen display photo, screen and seal corresponding region are carried out intercepting, press the BMP bitmap format to the intercepting zone and preserve; Seal designs and photo are synthetic draws.
Said photo files is placed under the same catalogue of DBF formatted file.
The said interface of affixing one's seal is according to the photo files list of file names in the DBF formatted file, is read into the image displaying area territory of software interface one by one.
Characteristics of the present invention and the beneficial effect that reaches are:
Set up the convenient easy-to-use text electronic seal tools of a cover, the user only need import the seal literal, adjusts slightly with mouse and can accomplish the E-seal making;
Realize E-seal and softdog double authentication, guaranteed uniqueness, the tamper-resistance properties of seal, improved the antiforge function of E-seal greatly;
Adopt and draw vector literal and vector graphics mode photomontage, improved the sharpness of certificate photograph seal;
Quick, the good batch data-interface of affixing one's seal is provided.The user only needs the Data transmission filename can accomplish the operation of affixing one's seal fast and automatically.
According to accompanying drawing and embodiment the present invention is done a detailed description below.
Description of drawings
Fig. 1 is side's E-seal method for making schematic flow sheet of the present invention;
Fig. 2 is side's electronic stamp certification method schematic flow sheet of the present invention.
Embodiment
Embodiment 1:
A kind of dog of text electronic seal authentication and quick output intent embodiment, this method comprises the making and the electron seal identification output of E-seal;
As shown in Figure 1, the making step of said E-seal comprises:
A. confirm that USB-KEY (dongle) connects effectively, sets up E-seal information; Said information comprises size, image, position, color of literal, literal etc.;
B. said information is stored in the file type data storehouse with approach vector; The literal in the seal for example; The position coordinates, font size, the font type that only need the storage literal; Circular frame in the seal only needs the central coordinate of circle and the radii size of the circular frame of storage to get final product, and common bitmap is with plain mutually form; The form of dot matrix just, polar plot then is the stored in form with algorithm;
C. the formed storage file of above-mentioned polar plot is carried out abstract extraction;
The summary that d. will extract writes among the USB-KEY (dongle);
As shown in Figure 2, the authentication output step of said E-seal comprises:
A. confirm that USB-KEY (dongle) connects effectively, from USB-KEY (dongle), reads the E-seal informative abstract, is recorded as SN1;
B. to the E-seal information of prior foundation, both stated the formed storage file of polar plot and carried out abstract extraction again;
C. SN1 is compared with the E-seal informative abstract that recomputates;
D. comparative result is consistent, the photo files data parameters of then importing into the operation of affixing one's seal fast, and the preservation of the photo after will affixing one's seal according to the user, and comparative result is inconsistent, then authentication failed.
Wherein, the photo files data parameters of importing into according to the user affixes one's seal to operate fast:
The user only needs the photo files that needs are affixed one's seal is stored with the DBF formatted file;
And photo files is placed under the same catalogue of DBF formatted file; Both all photo files are stored under the catalogue;
The absolute path of DBF file is sent to the interface of originally affixing one's seal, after checking E-seal informative abstract is passed through;
Affix one's seal interface according to the photo files list of file names in the DBF formatted file, be read into the image displaying area territory of software interface one by one:
Seal generates the photo corresponding characters according to the E-seal vector or graphical control is put on the graphic presentation control;
When changing control screen display photo, the building-up process of seal and photo is accomplished by system at once automatically, promptly earlier with the API of system (API is the computing machine known technology) intercepting is carried out in the screen corresponding region, presses the BMP bitmap format to the intercepting zone again and preserves; Because the synthetic drawing of seal and photo, screen printing zone all are to be realized by the API of system, so building-up process is very quick.Can reach more than 30/second.
Embodiment 2:
Dog of text electronic seal authentication and quick output intent preferred embodiment, referring to embodiment 1, said abstract extraction can have multiple mode, for example MD2, MD3 algorithm or the like, present embodiment adopts the MD5 algorithm.
MD5 is Message-Digest-Algorithm 5 (message digest algorithm 5), is used to guarantee the complete unanimity of information transmission, is one of widely used hash algorithm of computing machine (translating digest algorithm, hash algorithm again), and the generally existing MD5 of main flow programming language realizes.Is the basic principle of hash algorithm with data (like Chinese character) computing for another fixed-length value, and there are MD2, MD3 and MD4 in the predecessor of MD5,
The typical application of MD5 is that one section Message (byte serial) is produced fingerprint (fingerprint), to prevent " being distorted ".Give an example; You write on one with one section word and cry in the readme.txt file; And this readme.txt produced the value of a MD5 and place on record; You can propagate this file and give others then, if others has revised any content in the file, you will find (two MD5 values are inequality) when this file is recomputated MD5.If a third-party certification authority is arranged again, can also prevent " denial " of paper writer, so-called digital signature applications that Here it is with MD5.
The ultimate principle or the digital signature of the foregoing description institute describing method are encapsulated in digital signature in the black box, and the user need not get a thorough understanding of the notion of digital signature, use seal to get final product according to daily habits.
Claims (3)
1. dog of text electronic seal authentication and output intent is characterized in that, this method comprises the making and the electron seal identification output of E-seal;
The making step of said E-seal comprises:
A. confirm that USB-KEY connects effectively, sets up E-seal information, said E-seal information comprises size, image, position, the colouring information of literal, literal;
B. said seal writings and image information is stored in the file type data storehouse with approach vector;
C. the formed storage file of above-mentioned vector is carried out abstract extraction;
The summary that d. will extract writes among the USB-KEY;
The authentication output step of said E-seal comprises:
A. confirm that USB-KEY connects effectively, from USB-KEY, reads the E-seal informative abstract, is recorded as SN1;
B. again the formed storage file of said vector is carried out abstract extraction;
C. SN1 that reads and the E-seal informative abstract that recomputates are compared;
D. comparative result is consistent, the photo files data parameters of then importing into according to the user affix one's seal operation and the preservation of the photo after will affixing one's seal; Comparative result is inconsistent, then authentication failed;
The said photo files data parameters of importing into according to the user affixes one's seal to operate:
The photo files that the user need affix one's seal is stored with the DBF formatted file;
The absolute path of DBF formatted file is sent to the interface of affixing one's seal;
The seal designs control is put on the graphic presentation control;
When the screen display photo, screen and seal corresponding region are carried out intercepting, press the BMP bitmap format to the intercepting zone and preserve; Seal designs and photo are synthetic draws.
2. a kind of dog of text electronic seal authentication according to claim 1 and output intent is characterized in that, said abstract extraction adopts the MD5 algorithm.
3. a kind of dog of text electronic seal authentication according to claim 1 and output intent is characterized in that said photo files is placed under the same catalogue of DBF formatted file.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009103109077A CN101719246B (en) | 2009-12-04 | 2009-12-04 | Method for authenticating and fast outputting soft-dog of text electronic seal |
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| CN2009103109077A CN101719246B (en) | 2009-12-04 | 2009-12-04 | Method for authenticating and fast outputting soft-dog of text electronic seal |
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| CN101719246A CN101719246A (en) | 2010-06-02 |
| CN101719246B true CN101719246B (en) | 2012-11-28 |
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| CN102857336A (en) * | 2011-06-28 | 2013-01-02 | 北大方正集团有限公司 | Encryption method, decryption method and system for dot matrix files |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311950A (en) * | 2007-05-25 | 2008-11-26 | 北京书生国际信息技术有限公司 | Electronic stamp realization method and device |
| CN101520772A (en) * | 2008-02-25 | 2009-09-02 | 北京书生国际信息技术有限公司 | Realizing method of electronic seal |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311950A (en) * | 2007-05-25 | 2008-11-26 | 北京书生国际信息技术有限公司 | Electronic stamp realization method and device |
| CN101520772A (en) * | 2008-02-25 | 2009-09-02 | 北京书生国际信息技术有限公司 | Realizing method of electronic seal |
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