CN104079406A - Method, system and terminal for verifying electronic signature represented by identifier - Google Patents
Method, system and terminal for verifying electronic signature represented by identifier Download PDFInfo
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- CN104079406A CN104079406A CN201310108728.1A CN201310108728A CN104079406A CN 104079406 A CN104079406 A CN 104079406A CN 201310108728 A CN201310108728 A CN 201310108728A CN 104079406 A CN104079406 A CN 104079406A
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Abstract
The invention provides a method, a system and a terminal for verifying an electronic signature represented by an identifier. By adopting a technical means of producing a provider signature identifier corresponding to a provider electronic signature and a signer signature identifier corresponding to a signer electronic signature, writing the provider signature identifier and the signer signature identifier into a check file to enable the check file to include the visual provider signature identifier and the visual signer signature identifier when being displayed, the electronic signatures can be easily and directly used and identified by public, and the electronic signature can be easy and convenient and the same as traditional signature and sealing on paper in technical effect.
Description
Technical field
The invention belongs to electronic signal checking field, particularly a kind of checking is by method, system and the terminal of the represented electronic signature of identifier.
Background technology
In the method for a set of electronic signature, conventionally define two kinds of complementary computings, wherein a kind of computing can be signed on digital document, and another kind of running can be verified the signature on digital document.
Electronic signature is similar with the common entity signed and sealed (SS) writing on paper, but does not refer to signature is scanned into digital picture, or the signature obtaining with touch pad, certainly neither inscription.Compare with the common entity signature writing on paper, the integrality with the digital document of electronic signature is easy to checking, because electronic signature does not need seal on the perforation, junction of the edges of two sheets of paper signature, do not need handwriting expert to carry out handwriting verification, and can verify as long as see through public key cryptography running yet.Therefore, electronic signature also has non repudiation, non-repudiation.
But; the encryption technology that need to use public-key owing to signing electronically realizes; therefore; use electronic signature to have technical door; and unlike tradition, on paper, signed and sealed (SS), facilitate public use; in addition; electronic signature can be hidden in the digital document after signature conventionally; the reader of digital document can only see through tool software and carry out identification electronic signature; that is to say; through the digital document of electronic signature, also have no idea as tradition easy identification signed and sealed (SS) on paper, and the digital document after printing more cannot its electronic signature of identification.
In sum, since known prior art is medium-term and long-term, existed always and sign electronically and be difficult for the problem with identification by popular directly use, be therefore necessary to propose improved technological means, solve this problem.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, one aspect of the present invention, provides the method for a kind of checking by the represented electronic signature of identifier, and the method is applied to electric terminal, and described method comprises the following step:
A. provide to comprise people is provided the sign file of checking of identifier and the file identifier corresponding with original document of identifier, signer of signing; According to described file identifier, obtain described original document;
B. generate the file digest values (digest-value) of described original document;
C. according to the described signer identifier of signing, obtain the electronic signature corresponding with this signer;
D. the described electronic signature of decoding generates signature digest value; With
E. compare described file digest values and described signature digest value.
Preferably, said method comprising the steps of: set up described original document, generation comprise described file identifier and described in provide people to sign identifier intermediate file, transmit this intermediate file to object terminal, write the described signer identifier of signing and check file described in generating.
Preferably, described method comprises: transmit described signer's electronic signature to outside PKIX (PKI) service, checking produces the validity of signer's digital certificate of this signer's electronic signature.
The present invention on the other hand, the system of a kind of checking by the represented electronic signature of identifier is provided, this system applies is in electric terminal, described terminal comprises storage medium, it is characterized in that: described storage medium stores checks file, described in check file including people be provided sign identifier, signer sign identifier and the file identifier corresponding with original document;
Described system comprises: file is obtained module, signature is obtained module and signature verification module;
Described file is obtained module and is obtained described original document according to described file identifier;
Described signature is obtained module and is obtained the electronic signature corresponding with this signer according to signer's identifier of signing;
Described signature verification module generates the file digest values of described original document, and the described electronic signature of decoding generates signature digest value, and compares described file digest values and described signature digest value to verify this electronic signature.
Preferably, described system comprises:
Identifier generation module, for generation of comprise described file identifier and described in provide people to sign identifier intermediate file; With
Transport module, for transmitting described intermediate file to object terminal, and receive this object terminal in described intermediate file write described signer sign generate after identifier described in check file; And transmit described signer's electronic signature to outside PKIX service, to verify the validity of the signer's digital certificate that produces this signer's electronic signature.
It is two-dimensional bar/QR code that people's sign identifier and file identifier of identifier, signer of signing is provided preferably.
The present invention on the other hand, provides the terminal of a kind of checking by the represented electronic signature of identifier, it is characterized in that: described terminal comprises storage medium and system as above; Described storage medium stores is checked file.
Compared with prior art, beneficial effect of the present invention is:
Its by produce correspondence provide people sign electronically with signer electronic signature people is provided identifier and the signer identifier of signing of signing, and will provide people's identifier and signer identifier of signing of signing to write and check in file, make to check file the visual people of providing the sign technological means of identifier of identifier and signer of signing is provided when shown, can make to sign electronically and easily by masses, directly be used and identification, and reach the technique effect that makes electronic signature equally easy and easy to use with tradition signed and sealed (SS) on paper.
Accompanying drawing explanation
Fig. 1 be in the present invention a kind of checking by the Organization Chart of the terminal of the represented electronic signal of identifier;
Fig. 2 is that the present invention represents the method flow diagram of electronic signature hereof by identifier;
Fig. 3 verifies the method flow diagram by the represented electronic signature of identifier in the present invention;
Fig. 4 is the original document carried of the embodiment of the present invention and the schematic diagram of intermediate file;
Fig. 5 is the embodiment of the present invention original document of carrying and the schematic diagram of checking file;
Wherein, 400-object terminal; 310-original document; 320-intermediate file; 321-file identifier; 322-people is provided the identifier of signing; 330-check file; 333-signer identifier of signing.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The present invention can set up and check file for the e-file of digital content, by the signature identifier that file including provides people and signer of checking that the present invention set up, make to check file and there is the visual effect at traditional file upper cover seal, in addition, the present invention also can verify the corresponding electronic signature of signature identifier (signature) of checking in file.
Following elder generation is illustrated the running of terminal of the present invention by the internal structure schematic diagram (Fig. 1) of the terminal of the represented electronic signature of signature identifier with checking in the present invention.As shown in Figure 1, checking of the present invention mainly contains checking that storage medium 110 and the present invention propose by the system of the represented electronic signature of identifier by the terminal 100 of the represented electronic signature of identifier.Wherein, more include file is obtained module 150 to system of the present invention, signature is obtained module 160 and signature verification module 170.In addition, in system of the present invention, also can comprise attached identifier generation module 120 and transport module 130.
Storage medium 110 is responsible for storing and is checked file, uses to provide and checks file to other modules uses in system of the present invention.Wherein, storage medium 110 is stored checks include file identifier in file, people is provided identifier and the signer identifier of signing of signing.In addition, in the embodiment of part, storage medium 110 also can store the original document corresponding with checking file, but the present invention is not as limit.
The file identifier that the present invention carries is symbol that can be shown in checking file with signature identifier, generally speaking, file identifier is two-dimensional bar/QR code with signature identifier, but the present invention has no particular limits, for example, file identifier can be also specific image with signature identifier.
File identifier and original document have many-to-one corresponding relation, and file is obtained module 150 can obtain corresponding original document by file identifier.Wherein, file obtain module 150 will be in explanation after a while.
In the present invention, each signature identifier is only corresponding with one group of electronic signature, and digital certificate (Digital Certificate) and the private key that people/signer uses oneself that provide that the electronic signature corresponding with signature identifier is original document carries out being produced after specific calculation to original document.Above-mentioned carried specific calculation is including but not limited to encryption, coding, calculating etc., and all calculations that can use digital certificate to produce the data that is difficult for being forged can be used in the present invention.Wherein, the signature identifier that the present invention carries comprises provides people identifier and the signer identifier of signing of signing, the electronic signature that the present invention carries comprises provides people to sign electronically and signer's electronic signature, and the digital certificate that the present invention carries comprises provides people's digital certificate and signer's digital certificate.
Identifier generation module 120 can produce and the signature identifier that signs electronically corresponding.Generally speaking, identifier generation module 120 can calculate to original document and produce electronic signature according to digital certificate and private key, and after producing electronic signature, according to the electronic signature producing, produce corresponding signature identifier, but the present invention is not as limit, that is to say, electronic signature can be in the outside generation of the present invention.
Identifier generation module 120 also can be by the file identifier corresponding with original document, and provide the people's identifier of signing that provides corresponding to people's the electronic signature that provides people's digital certificate and private key to produce to write in electronic record according to original document and original document, when this electronic record is shown, shown content comprises the file identifier corresponding with original document and people is provided the identifier of signing.Wherein, being identified symbol generation module 120 electronic record that provides people to sign identifier and file identifier is provided is the intermediate file that the present invention carries.In addition, identifier generation module 120 also can produce the file identifier corresponding with original document, but the present invention is not as limit, that is to say, the file identifier corresponding with original document can be outside generation of the present invention.
The intermediate file that transport module 130 can produce identifier generation module 120 is sent to object terminal 400, and can receive object terminal 400 and in intermediate file, write signer's electronic record that identifier produces of signing, this electronic record is the file of checking that the present invention carries.
In fact, terminal 100 might not be the transmitting terminal of middle archives, in the embodiment of part, may be also the receiving terminal of middle archives, and namely above-mentioned purpose terminal 400.Now, the intermediate file part that the transmitting terminal that can receive transport module 130 transmits, identifier generation module 120 can be responsible for signer's identifier of signing to write in received intermediate file, to produce, checks file, makes transport module 130 to pass transmitting terminal back by checking file.Wherein, identifier generation module 120 can be according to signer's signer's digital certificate and private key and original document generation signer electronic signature, and generation and the signer corresponding signer identifier of signing that signs electronically, but the present invention is not as limit, that is to say, signer's electronic signature also can be outside generation of the present invention.
In addition, transport module 130 also can be sent to the digital certificate that produces electronic signature PKIX (PKI) service of outside of the present invention, and receive the result that PKIX service is passed back, by PKIX service verification, produce the digital certificate validity of received electronic signature.
File is obtained module 150 and is responsible for obtaining after file identifier in terminal of the present invention, according to the file identifier being acquired, obtains corresponding original document.For example, after terminal 100 shootings or the loading file identifier such as two-dimensional bar/QRcode corresponding with original document, file is obtained file identifier that module 150 can obtain according to terminal 100 to the ad-hoc location in storage medium 110, or the particular web site on network reads or download corresponding original document.
Signature is obtained module 160 and is responsible for obtaining the electronic signature corresponding with checking signature identifier in file.Signature is obtained module 160 and signature identifier can be converted to and meet public key cryptography compiling standard (Public key cryptography Standards, PKCS) electronic signature of form, or read the represented electronic signature of signature identifier, the not special restriction of the present invention.
Signature verification module 170 is responsible for producing the file digest values (digest-value) that file is obtained the accessed original document of module 150, and the electronic signature in the received e-file of transport module 130 is decoded (decrypt), obtain the signature digest value of the received electronic signature of transport module 130.
Signature verification module 170 file digest values that also responsible comparison produces and obtained signature digest value, to verify the electronic signature in the received electronic record of transport module 130.Wherein, when signature verification module 170 comparison file digest values and signature digest are worth when identical, represent that electronic signature in the received electronic record of transport module 130 is by verifying, the user of namely this electronic signature signs original document really.
Then with an embodiment, How It Works of the present invention is described, and please refer to method flow diagram Fig. 2, Fig. 3 that the present invention carries.In the present embodiment, suppose that terminal 100 is for intelligent mobile phone, but the present invention is not as limit.
First, supplier need to first set up original document (step 202).In the present embodiment, suppose that original document is rental agreement, the supplier of original document is the user of intelligent mobile phone (terminal 100), this user can use its intelligent mobile phone using or other any terminals, such as computer etc., editor's rental agreement, wherein, the person of being provided editor's rental agreement is the file types such as WORD, PDF or TXT, and the present invention is not particularly limited.
Supplier, set up after original document (step 202), storage medium 110 can store the original document being established, and the intermediate file (step 210) that comprises the file identifier corresponding with original document and provide people to sign identifier also can be provided identifier generation module 120.In the present embodiment, suppose that identifier generation module 120 can produce the file identifier 321 corresponding with original document 310, also can use the user's (supplier of original document) of intelligent mobile phone supplier's digital certificate and private key to carry out computing to produce supplier's electronic signature to original document 310, in addition, identifier generation module 120 also can produce with supplier and sign electronically and corresponding provide people the identifier 322 of signing, and by produced file identifier 321 and provide people's identifier 322 of signing to write in intermediate file 320, make intermediate file 320 as shown in Figure 4, comprise file identifier 321 that can be viewed and people is provided the identifier 322 of signing.
Wherein, the file identifier that identifier generation module 120 produces is all QRcode with people's identifier of signing is provided.
At identifier generation module 120, produce include file identifiers and provide after the intermediate file (step 210) that people signs identifier, the intermediate file that transport module 130 can produce identifier generation module 120 is sent to object terminal 400 (step 222).
Object terminal 400 is after receiving the intermediate file that terminal 100 transmits, and object terminal 400 can write signer's identifier of signing in intermediate file, produces and checks file (step 226).In the present embodiment, the file of hypothesis goal terminal 400 is obtained module can obtain original document according to the file identifier comprising in intermediate file, the identifier generation module of object terminal 400 can carry out computing to produce signer's electronic signature to original document 310 at the user's of application target terminal 400 signer's digital certificate and private key, and generation and the signer corresponding signer that signs electronically signs after identifier 333, the produced signer identifier 333 of signing is added in received intermediate file 320, with produce as shown in Figure 3 check file 330.
In object terminal 400, produce and check after file, the transport module of object terminal 400 can be passed terminal 100 back by checking file.The transport module 130 of terminal 100 can receive the file of checking that object terminal 400 passes back, and the file of checking receiving is stored in storage medium 110.
At storage medium 110, store and check after file, storage medium 110 just can provide checks file (step 240).So, file is obtained module 150 and can be obtained original document (step 251) according to the stored file identifier of checking in file of storage medium 110.In the present embodiment, file is obtained module 150 and can from storage medium 110, be read and check file, and is written into the file identifier of checking in file, to obtain the corresponding original document of file identifier.
At file, obtain module 150 and obtain after original document (step 251) according to the file identifier of checking in file, signature verification module 170 can produce the file digest values (step 255) that file is obtained the original document that module 150 obtains.
In addition, at storage medium 110, store and check after file equally, namely storage medium 110 can provide and check after file (step 240), signature is obtained module 160 can obtain the signer corresponding with signer electronic signature (step 262) according to signer's identifier of signing, signature verification module 170 also can obtain the obtained signer's electronic signature of module 160 by decoding signature, uses the signature digest value (step 266) that obtains signer's electronic signature.
The file digest values (step 255) and the decoding signature that in signature verification module 170, produce original document are obtained after the obtained signer's of module 160 electronic signature (step 266), signature verification module 170 can be compared produced file digest values and obtained signature digest value, uses checking signer's electronic signature (step 270).
In addition, after signature verification module 170 comparison file digest values and the electronic signature (step 270) of signature digest value with checking signer, transport module 130 can also be sent to PKIX service by signer's electronic signature, produces signer's digital certificate validity (step 290) of signer's electronic signature by PKIX service verification.
In sum, known the present invention and difference between prior art are to have and the corresponding people of providing is provided signs electronically and provide people identifier and the signer identifier of signing of signing with signer signs electronically, and will provide people's identifier and signer identifier of signing of signing to write and check in file, make to check file the visual people of providing the sign technological means of identifier of identifier and signer of signing is provided when shown, can solve thus the existing electronic signature of prior art and be difficult for the problem with identification by popular directly use, and then reach allow electronic signature with traditional on paper signed and sealed (SS) technique effect equally easy and easy to use.
Moreover, checking of the present invention is by the method for the represented electronic signature of identifier, can be implemented in the combination of hardware, software or hardware and software, also can in computer system, with centralized system, realize or intersperse among with different assemblies the dispersing mode of the computer system of some interconnection and realize.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although the present invention is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the specific embodiment of the present invention, and do not depart from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of claim scope of the present invention.
Claims (7)
1. checking is by a method for the represented electronic signature of identifier, and the method is applied to electric terminal, and described method comprises the following step:
A. provide to comprise people is provided the sign file of checking of identifier and the file identifier corresponding with original document of identifier, signer of signing; According to described file identifier, obtain described original document;
B. generate the file digest values (digest-value) of described original document;
C. according to the described signer identifier of signing, obtain the electronic signature corresponding with this signer;
D. the described electronic signature of decoding generates signature digest value; With
E. compare described file digest values and described signature digest value.
2. the method for claim 1, it is characterized in that, said method comprising the steps of: set up described original document, generation comprise described file identifier and described in provide people to sign identifier intermediate file, transmit this intermediate file to object terminal, write the described signer identifier of signing and check file described in generating.
3. the method for claim 1, is characterized in that, described method comprises: transmit described signer's electronic signature to outside PKIX (PKI) service, checking produces the validity of signer's digital certificate of this signer's electronic signature.
4. a checking is by the system of the represented electronic signature of identifier, this system applies is in electric terminal, described terminal comprises storage medium, it is characterized in that: described storage medium stores checks file, described in check file including people be provided sign identifier, signer sign identifier and the file identifier corresponding with original document;
Described system comprises: file is obtained module, signature is obtained module and signature verification module;
Described file is obtained module and is obtained described original document according to described file identifier;
Described signature is obtained module and is obtained the electronic signature corresponding with this signer according to signer's identifier of signing;
Described signature verification module generates the file digest values of described original document, and the described electronic signature of decoding generates signature digest value, and compares described file digest values and described signature digest value to verify this electronic signature.
5. system as claimed in claim 4, is characterized in that, this system comprises:
Identifier generation module, for generation of comprise described file identifier and described in provide people to sign identifier intermediate file; With
Transport module, for transmitting described intermediate file to object terminal, and receive this object terminal in described intermediate file write described signer sign generate after identifier described in check file; And transmit described signer's electronic signature to outside PKIX service, to verify the validity of the signer's digital certificate that produces this signer's electronic signature.
6. system as claimed in claim 4, is characterized in that: described in people's sign identifier and file identifier of identifier, signer of signing is provided is two-dimensional bar/QR code.
7. checking, by a terminal for the represented electronic signature of identifier, is characterized in that: described terminal comprises storage medium and the system as described in claim 4-7 any one; Described storage medium stores is checked file.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310108728.1A CN104079406A (en) | 2013-03-29 | 2013-03-29 | Method, system and terminal for verifying electronic signature represented by identifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310108728.1A CN104079406A (en) | 2013-03-29 | 2013-03-29 | Method, system and terminal for verifying electronic signature represented by identifier |
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| Publication Number | Publication Date |
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| CN104079406A true CN104079406A (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310108728.1A Pending CN104079406A (en) | 2013-03-29 | 2013-03-29 | Method, system and terminal for verifying electronic signature represented by identifier |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105022967A (en) * | 2014-04-28 | 2015-11-04 | 捷码数位科技股份有限公司 | Device, system and method for identifying digital signature represented by signature identifier |
| CN106875562A (en) * | 2017-03-02 | 2017-06-20 | 钟晓华 | A kind of file network discerns technical scheme |
| CN107395574A (en) * | 2017-06-30 | 2017-11-24 | 上海策赢网络科技有限公司 | Message identification, information request and offer method and apparatus, storage medium and equipment |
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| CN1349179A (en) * | 2001-12-03 | 2002-05-15 | 上海电子商务安全证书管理中心有限公司 | Electronic signature anti-fake method and device |
| CN1808482A (en) * | 2006-02-09 | 2006-07-26 | 北京北大方正电子有限公司 | Visual electronic signature and verification method |
| WO2012105995A1 (en) * | 2011-01-31 | 2012-08-09 | Intuit Inc. | Method and apparatus for ensuring the integrity of a downloaded data set |
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| CN1349179A (en) * | 2001-12-03 | 2002-05-15 | 上海电子商务安全证书管理中心有限公司 | Electronic signature anti-fake method and device |
| CN1808482A (en) * | 2006-02-09 | 2006-07-26 | 北京北大方正电子有限公司 | Visual electronic signature and verification method |
| WO2012105995A1 (en) * | 2011-01-31 | 2012-08-09 | Intuit Inc. | Method and apparatus for ensuring the integrity of a downloaded data set |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105022967A (en) * | 2014-04-28 | 2015-11-04 | 捷码数位科技股份有限公司 | Device, system and method for identifying digital signature represented by signature identifier |
| CN106875562A (en) * | 2017-03-02 | 2017-06-20 | 钟晓华 | A kind of file network discerns technical scheme |
| CN107395574A (en) * | 2017-06-30 | 2017-11-24 | 上海策赢网络科技有限公司 | Message identification, information request and offer method and apparatus, storage medium and equipment |
| CN107395574B (en) * | 2017-06-30 | 2021-05-07 | 上海策赢网络科技有限公司 | Information identification, information request and providing method and device, storage medium and equipment |
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