CN107316182A - A kind of generation method of electronic contract chain of evidence and generation system - Google Patents
A kind of generation method of electronic contract chain of evidence and generation system Download PDFInfo
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- CN107316182A CN107316182A CN201710524261.7A CN201710524261A CN107316182A CN 107316182 A CN107316182 A CN 107316182A CN 201710524261 A CN201710524261 A CN 201710524261A CN 107316182 A CN107316182 A CN 107316182A
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Abstract
The present invention provides a kind of generation method of electronic contract chain of evidence and generation system, when signing electronic contract, performs following steps：The e-file and the e-file of material of step 1, the personnel's head portrait for gathering and generating contract signing scene；Step 2, by the e-file perform data verification after, achieve data bank in；Step 3, generate the corresponding HASH values of each e-file, the corresponding HASH values of each e-file pass through the corresponding Quick Response Code of merging generation after AES encryption；Step 4, each e-file is merged to generation layout files, unique contract ID of electronic contract and the Quick Response Code are inserted in the layout files；Step 5, addition timestamp and digital signature in the layout files, form formal electronic contract and simultaneously issue, the both sides signed a contract obtain corresponding encryption key.A kind of generation method of electronic contract chain of evidence of the present invention ensure that integrality, authenticity and the verifiability of the chain of evidence of electronic contract.
Description
【Technical field】
The present invention relates to a kind of generation method of electronic contract chain of evidence and generation system.
【Background technology】
Electronic contract is by general formation of the contract important document and signed electronically.《Law of electronic signature》Regulation：Electronics is closed
With when being signed electronically, it is desirable to which electronic contract possesses：Form legitimacy, real evidence, the signature reliability of content.Content
Form legitimacy refer to：Data message can be shown the content that its own is carried by certain form and be looked at any time for people
Read, extract.The authenticity of evidence refers to that the generation of electronic data and storage method have reliability, the interior container of electronic data
There is integrality.
Current electronic contract borrows national layout files and digital signature skill as the important means of papery contract electronization
Art signs electronically to electronic contract, and electronic signature is a kind of means for verifying identity, differentiates the identity of signer, so as to true
Vertical attribution of liability.Meet《Law of electronic signature》Related request.
The mode that vestige is handled in current electronic contract retention is various, and the way do not sought unity of standard is handled vestige and easily usurped
Change, it is not consistent with electronic contract original paper component, it is difficult to be stored as electronic contract chain of evidence is unified, and review checking electronics conjunction
There is certain difficulty with authenticity.
【The content of the invention】
One of the technical problem to be solved in the present invention, is to provide a kind of generation method of electronic contract chain of evidence, and it is protected
The integrality, authenticity and verifiability of the chain of evidence of electronic contract are demonstrate,proved.
The present invention is one of such solution above-mentioned technical problem：
A kind of generation method of electronic contract chain of evidence, when signing electronic contract, performs following steps：
The e-file and the electricity of application material of step 1, the related personnel's head portrait for gathering and generating contract signing scene
Subfile；
Step 2, the e-file performed into data verification, examination ＆ verification passes through, and achieves in data bank, then performs step 3；
Examination ＆ verification does not pass through, return to step 1；
Step 3, generate the corresponding HASH values of each e-file, and the corresponding HASH values of each e-file are passed through and added
Merge the corresponding Quick Response Code of generation after close algorithm for encryption；
Step 4, each e-file merges to generation layout files, and by unique contract ID of electronic contract and described
Quick Response Code is inserted in the layout files；
Step 5, addition timestamp and digital signature in the layout files, form formal electronic contract and simultaneously issue, sign
The both sides made a contract obtain corresponding encryption key.
A kind of generation method of electronic contract chain of evidence, when signing electronic contract, performs following steps：
The e-file and the electricity of application material of step 1, the related personnel's head portrait for gathering and generating contract signing scene
Subfile；
Step 2, the e-file performed into data verification, examination ＆ verification passes through, and achieves in data bank, then performs step 3；
Examination ＆ verification does not pass through, return to step 1；
Step 3：Generate the corresponding HASH values of each e-file, and by the corresponding HASH values of each e-file and electronics
Unique contract ID of contract merges the corresponding Quick Response Code of generation after being encrypted by AES；
Step 4：Each e-file is merged into generation layout files, and the Quick Response Code is inserted into the layout files
In；
Step 5, addition timestamp and digital signature in the layout files, form formal electronic contract and simultaneously issue, sign
The both sides made a contract obtain corresponding encryption key.
Preferably, the e-file in the step 1 includes：The identity card image of party, the image of transactor, application
Required associated materials and electronic contract.
Preferably, the identity card image is gathered by identity card identifier, and transactor's image passes through video image
Collector is gathered, and the associated materials needed for application are gathered by high photographing instrument or scanner, and the associated materials also include electronics material
Material.
Preferably, this method further comprises：When needing to extract the corresponding e-file of electronic contract from data bank,
Whether the e-file in verifying data storehouse is tampered, i.e., the e-file in verifying data storehouse whether by contract signing when carry
The e-file of friendship, performs following steps：
Quick Response Code in step 6, the identification electronic contract, obtains the value of Quick Response Code；
Step 7, using the encryption key value of the Quick Response Code is decrypted, obtains each HASH values；
Step 8, obtain corresponding e-file from the data bank according to unique contract ID, and will get
Each e-file generates corresponding HASH values, and itself and the step 8 are decrypted into obtained HSAH values is compared, if identical,
It is not tampered with.
The second technical problem to be solved by the present invention, is to provide a kind of generation system of electronic contract chain of evidence.
The present invention is the two of such solution above-mentioned technical problem：
A kind of generation system of electronic contract chain of evidence, the system includes：
Acquisition module, gathers and generates the e-file and application material of the related personnel head portrait at contract signing scene
E-file；
Auditing module, data verification is performed to the e-file, and examination ＆ verification passes through, and is achieved in data bank；Examination ＆ verification does not pass through,
Re-executed by the acquisition module；
Generation module is encrypted, the corresponding HASH values of each e-file are generated, and by the corresponding HASH of each e-file
Value merges after being encrypted by AES generates corresponding Quick Response Code；
Layout files generation module, merges generation layout files by each e-file, and by the unique of electronic contract
Contract ID and the Quick Response Code are inserted in the layout files；
Electronic contract generation module, adds timestamp and digital signature in the layout files, forms formal electronic and closes
With and issue, the both sides signed a contract obtain corresponding encryption key.
A kind of generation system of electronic contract chain of evidence, the system includes：
Acquisition module, gathers and generates the e-file and application material of the related personnel head portrait at contract signing scene
E-file；
Auditing module, data verification is performed to the e-file, and examination ＆ verification passes through, and is achieved in data bank；Examination ＆ verification does not pass through,
Re-executed by the acquisition module；
Generation module is encrypted, the corresponding HASH values of each e-file are generated, and by the corresponding HASH of each e-file
Value merges the corresponding Quick Response Code of generation after being encrypted with unique contract ID of electronic contract by AES；
Layout files generation module, merges generation layout files, and the Quick Response Code is inserted by each e-file
In the layout files；
Electronic contract generation module, adds timestamp and digital signature in the layout files, forms formal electronic and closes
With and issue, the both sides signed a contract obtain corresponding encryption key.
Preferably, the e-file that the acquisition module is gathered and generated includes：The identity card image of party, transactor
Image, application needed for associated materials and electronic contract.
Preferably, in the acquisition module, identity card image is gathered by identity card identifier, transactor's image by regarding
Frequency image collection device is gathered, and the associated materials needed for application are gathered by high photographing instrument or scanner, and the associated materials also include
Electronic material.
Preferably, the system also includes：
Authentication module；When needing to extract the corresponding e-file of electronic contract from data bank, in verifying data storehouse
Whether e-file is tampered, i.e., the e-file submitted when whether the e-file in verifying data storehouse is by contract signing；
The authentication module specifically performs following steps：
The Quick Response Code on the electronic contract is recognized first, obtains the value of Quick Response Code；
Then the value of the Quick Response Code is decrypted using the encryption key, obtains each HASH values；
Corresponding e-file is obtained from the data bank finally according to unique contract ID, and it is each by what is got
E-file generates corresponding HASH values, the HSAH values that it is obtained with being decrypted in previous step is compared, if identical, not
It is tampered.
The invention has the advantages that：
The present invention demonstrate,proves image, transactor's image and the material related to contract signing by auxiliary equipment captured identity,
The corresponding HASH values of each electronic material are generated after examination ＆ verification, encryption merges generation Quick Response Code, is inserted into layout files, will be with electricity
The related e-file of sub- contract is bound together, and the chain of evidence of electronic contract and its related accessories is ensure that well
The authenticity of integrality and evidence.Meanwhile, can also be by comparing HASH when needing to extract the e-file in data bank
Value checking authenticity.
【Brief description of the drawings】
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is a kind of schematic flow sheet of the generation method of electronic contract chain of evidence of the invention.
Fig. 2 shows for the flow that a kind of generation method of electronic contract chain of evidence of the invention reviews checking e-file authenticity
It is intended to.
Fig. 3 generates the schematic diagram of system for a kind of electronic contract chain of evidence of the invention.
Fig. 4 generates the schematic flow sheet of system for a kind of electronic contract chain of evidence of the invention.
【Embodiment】
Embodiment one：
Refer to shown in Fig. 1 and Fig. 2, embodiments of the invention one are described in detail.
Referring to Fig. 1, a kind of generation method of electronic contract chain of evidence, when signing electronic contract, performs following steps：
The e-file and the e-file of material of step 1, the personnel's head portrait for gathering and generating contract signing scene；
Specifically, the e-file includes：The required phase of the identity card image of party, the image of transactor, application
Close material and electronic contract.The identity card image can be gathered by identity card identifier, and transactor's image can be with
Gathered by video image collector, the associated materials needed for application can be gathered by high photographing instrument or scanner, the correlation
Material also includes electronic material, need not then change, directly use for electronic material；The present invention by identity card identifier,
Collection handles process and enters line number together as the annex of electronic contract in real time for video image collector, high photographing instrument, scanner etc.
Word is signed, the problem of can not being proved mutually between solution electronic contract evidence；
Step 2, the e-file performed into data verification, examination ＆ verification passes through, and achieves in data bank, then performs step 3；
Examination ＆ verification does not pass through, return to step 1；
Step 3, generate the corresponding HASH values of each e-file, and the corresponding HASH values of each e-file are passed through and added
Merge one Quick Response Code of generation after close algorithm for encryption；
Step 4, each e-file merges to one layout files of generation, and by unique contract ID of electronic contract and institute
Quick Response Code is stated to insert in the layout files；
Step 5, addition timestamp and digital signature in the layout files, form a formal electronic contract and simultaneously issue,
The both sides signed a contract obtain an encryption key.
The inserted mode of unique contract ID also includes：Unique contract ID is together with each HASH values by adding
Merge one Quick Response Code of generation after close algorithm for encryption, specifically：
The step 1, step 2 and step 5 keep constant, and only step 3 and step 4 is performed as follows：
The step 3：Generate the corresponding HASH values of each e-file, and by the corresponding HASH values of each e-file with
Unique contract ID of electronic contract merges one Quick Response Code of generation after being encrypted by AES；
The step 4：Each e-file is merged into one layout files of generation, and the Quick Response Code is inserted into the version
In formula file.
The technique effect that the different inserted modes of two kinds of above-mentioned unique contract ID are brought is identical.
Referring to Fig. 2, after formal electronic contract is issued, the corresponding electronics of electronic contract is if desired extracted from data bank
During file, whether the e-file in verifying data storehouse is tampered, i.e., whether the e-file in verifying data storehouse is contract label
The e-file submitted when ordering, performs following steps：
Quick Response Code in step 6, the identification electronic contract, obtains the value of Quick Response Code；
Step 7, using the encryption key value of the Quick Response Code is decrypted, obtains each HASH values；
Step 8, obtain corresponding e-file from the data bank according to unique contract ID, and will get
Each e-file generates corresponding HASH values, and itself and the step 8 are decrypted into obtained HSAH values is compared, if identical,
It is not tampered with, so as to demonstrate the authenticity of e-file in data bank.
Embodiment two：
Referring to Fig. 3, a kind of generation system of electronic contract chain of evidence, including：
One acquisition module, gathers and generates the e-file of personnel's head portrait at contract signing scene and the electronics text of material
Part；
Specifically, the e-file that the acquisition module is gathered and generated includes：The identity card image of party, transactor
Image, application needed for associated materials and electronic contract.
The identity card image can be gathered by identity card identifier, and transactor's image can be gathered by video image
Device is gathered, and the associated materials needed for application can be gathered by high photographing instrument or scanner, and the associated materials also include electronics material
Material, need not then change for electronic material, directly use；
One auditing module, data verification is performed to the e-file, and examination ＆ verification passes through, and is achieved in data bank；Examination ＆ verification is obstructed
Cross, re-executed by the acquisition module；
One encryption generation module, generates the corresponding HASH values of each e-file, and each e-file is corresponding
HASH values merge one Quick Response Code of generation after being encrypted by AES；
One layout files generation module, merges one layout files of generation by each e-file, and by electronic contract
Unique contract ID and the Quick Response Code are inserted in the layout files；
One electronic contract generation module, adds timestamp and digital signature in the layout files, forms a formal electricity
Sub- contract is simultaneously issued, and the both sides signed a contract obtain an encryption key.
The inserted mode of unique contract ID also includes：Unique contract ID is together with each HASH values by adding
Merge one Quick Response Code of generation after close algorithm for encryption, specifically：
The execution content of the acquisition module, auditing module and electronic contract generation module is constant, only encryption generation mould
Block and layout files generation module are performed as follows：
The encryption generation module, generates the corresponding HASH values of each e-file, and each e-file is corresponding
HASH values merge one Quick Response Code of generation after being encrypted with unique contract ID of electronic contract by AES；
The layout files generation module, merges one layout files of generation by each e-file, and by the two dimension
In the code insertion layout files.
The technique effect that the different inserted modes of two kinds of above-mentioned unique contract ID are produced is identical.
The generation system of the electronic contract chain of evidence also includes an authentication module；When needs extract electronics from data bank
During the corresponding e-file of contract, whether the e-file in verifying data storehouse is tampered, i.e., the electronics text in verifying data storehouse
The e-file submitted when whether part is by contract signing, the authentication module is specifically performed：The electronic contract is recognized first
On Quick Response Code, obtain the value of Quick Response Code；Then the value of the Quick Response Code is decrypted using the encryption key, obtains each
HASH values；Corresponding e-file is obtained from the data bank finally according to unique contract ID, and it is each by what is got
E-file generates corresponding HASH values, and itself and the step 8 are decrypted into obtained HSAH values is compared, if identical, not
It is tampered, so as to demonstrate the authenticity of e-file in data bank.
Referring to Fig. 4, the execution flow of the generation system of the electronic contract chain of evidence is as follows：
Step 10, the acquisition module gather and generated the e-file and material of personnel's head portrait at contract signing scene
E-file；
Specifically, the e-file that the acquisition module is gathered and generated includes：The identity card image of party, transactor
Image, application needed for associated materials and electronic contract.
The identity card image can be gathered by identity card identifier, and transactor's image can be gathered by video image
Device is gathered, and the associated materials needed for application can be gathered by high photographing instrument or scanner, and the associated materials also include electronics material
Material, need not then change for electronic material, directly use；
The e-file is performed data verification by step 20, auditing module, and examination ＆ verification passes through, and is achieved in data bank, then
Perform step 30；Examination ＆ verification does not pass through, and return to step 10 is re-executed by the acquisition module；；
Step 30, encryption generation module generate the corresponding HASH values of each e-file, and each e-file is corresponding
HASH values pass through AES encrypt after merge generation one Quick Response Code；
Each e-file is merged one layout files of generation by step 40, layout files generation module, and electronics is closed
Same unique contract ID and the Quick Response Code are inserted in the layout files；
Step 50, electronic contract generation module add timestamp and digital signature in the layout files, are forming one just
Formula electronic contract is simultaneously issued, and the both sides signed a contract obtain an encryption key.
Generation Quick Response Code is merged by AES encryption together with each HASH values when unique contract ID is used
Mode when,
The step 10, step 20 and step 50 keep constant, and only step 30 and step 40 is performed as follows：
The step 30, the encryption generation module generate the corresponding HASH values of each e-file, and by each electronics
The corresponding HASH values of file merge one Quick Response Code of generation after being encrypted with unique contract ID of electronic contract by AES；
Each e-file is merged one layout files of generation by the step 40, the layout files generation module, and
The Quick Response Code is inserted in the layout files.
The generation system of the electronic contract chain of evidence also includes an authentication module；When needs extract electronics from data bank
During the corresponding e-file of contract, whether the e-file in verifying data storehouse is tampered, i.e., the electronics text in verifying data storehouse
The e-file submitted when whether part is by contract signing, performs following steps：
Quick Response Code in step 60, the identification electronic contract, obtains the value of Quick Response Code；
Step 70, using the encryption key value of the Quick Response Code is decrypted, obtains each HASH values；
Step 80, corresponding e-file obtained from the data bank according to unique contract ID, and will got
Each e-file generate corresponding HASH values, the HSAH values that itself and the step 8 decryption are obtained are compared, if identical,
Then it is not tampered with, so as to demonstrate the authenticity of e-file in data bank.
The present invention demonstrate,proves image, transactor's image and the material related to contract signing by auxiliary equipment captured identity,
The corresponding HASH values of each electronic material are generated after examination ＆ verification, encryption merges generation Quick Response Code, is inserted into layout files, will be with electricity
The related e-file of sub- contract is bound together, and the chain of evidence of electronic contract and its related accessories is ensure that well
The authenticity of integrality and evidence.Meanwhile, can also be by comparing HASH when needing to extract the e-file in data bank
Value checking authenticity.
Although the foregoing describing the embodiment of the present invention, those familiar with the art should manage
Solution, the specific embodiment described by us is merely exemplary, rather than for the restriction to the scope of the present invention, is familiar with this
The equivalent modification and change that the technical staff in field is made in the spirit according to the present invention, should all cover the present invention's
In scope of the claimed protection.
Claims (10)
1. a kind of generation method of electronic contract chain of evidence, it is characterised in that when signing electronic contract, perform following steps：
The electronics text of step 1, the e-file for the related personnel's head portrait for gathering and generating contract signing scene and application material
Part；
Step 2, the e-file performed into data verification, examination ＆ verification passes through, and achieves in data bank, then performs step 3；Examination ＆ verification
Do not pass through, return to step 1；
Step 3, generate the corresponding HASH values of each e-file, and the corresponding HASH values of each e-file are passed through into encryption calculation
Merge the corresponding Quick Response Code of generation after method encryption；
Step 4, each e-file merges to generation layout files, and by unique contract ID of electronic contract and the two dimension
In the code insertion layout files；
Step 5, addition timestamp and digital signature in the layout files, form formal electronic contract and simultaneously issue, sign and close
Same both sides obtain corresponding encryption key.
2. a kind of generation method of electronic contract chain of evidence, it is characterised in that：When signing electronic contract, following steps are performed：
The electronics text of step 1, the e-file for the related personnel's head portrait for gathering and generating contract signing scene and application material
Part；
Step 2, the e-file performed into data verification, examination ＆ verification passes through, and achieves in data bank, then performs step 3；Examination ＆ verification
Do not pass through, return to step 1；
Step 3：Generate the corresponding HASH values of each e-file, and by the corresponding HASH values of each e-file and electronic contract
Unique contract ID encrypted by AES after merge the corresponding Quick Response Code of generation；
Step 4：Each e-file is merged into generation layout files, and the Quick Response Code is inserted in the layout files；
Step 5, addition timestamp and digital signature in the layout files, form formal electronic contract and simultaneously issue, sign and close
Same both sides obtain corresponding encryption key.
3. a kind of generation method of electronic contract chain of evidence as claimed in claim 1 or 2, it is characterised in that：In the step 1
E-file include：The required associated materials of the identity card image of party, the image of transactor, application and electronics are closed
Together.
4. a kind of generation method of electronic contract chain of evidence as claimed in claim 3, it is characterised in that：The identity card image
Gathered by identity card identifier, transactor's image is gathered by video image collector, the associated materials needed for application
Gathered by high photographing instrument or scanner, the associated materials also include electronic material.
5. a kind of generation method of electronic contract chain of evidence as claimed in claim 1 or 2, it is characterised in that：This method enters one
Step includes：When needing to extract the corresponding e-file of electronic contract from data bank, the e-file in verifying data storehouse is
E-file that is no to be tampered, i.e., being submitted when whether e-file in verifying data storehouse is by contract signing, performs following step
Suddenly：
Quick Response Code in step 6, the identification electronic contract, obtains the value of Quick Response Code；
Step 7, using the encryption key value of the Quick Response Code is decrypted, obtains each HASH values；
Step 8, obtain corresponding e-file from the data bank according to unique contract ID, and by each electricity got
Subfile generates corresponding HASH values, and the HSAH values that itself and the step 8 decryption are obtained are compared, if identical, not by
Distort.
6. a kind of generation system of electronic contract chain of evidence, it is characterised in that the system includes：
Acquisition module, gathers and generates the e-file and the electronics of application material of related personnel's head portrait at contract signing scene
File；
Auditing module, data verification is performed to the e-file, and examination ＆ verification passes through, and is achieved in data bank；Examination ＆ verification does not pass through, by institute
Acquisition module is stated to re-execute；
Generation module is encrypted, the corresponding HASH values of each e-file are generated, and the corresponding HASH values of each e-file is logical
Cross and merge the corresponding Quick Response Code of generation after AES encryption；
Layout files generation module, merges generation layout files by each e-file, and by unique contract of electronic contract
ID and the Quick Response Code are inserted in the layout files；
Electronic contract generation module, adds timestamp and digital signature in the layout files, forms formal electronic contract simultaneously
Issue, the both sides signed a contract obtain corresponding encryption key.
7. a kind of generation system of electronic contract chain of evidence, it is characterised in that：The system includes：
Acquisition module, gathers and generates the e-file and the electronics of application material of related personnel's head portrait at contract signing scene
File；
Auditing module, data verification is performed to the e-file, and examination ＆ verification passes through, and is achieved in data bank；Examination ＆ verification does not pass through, by institute
Acquisition module is stated to re-execute；
Encrypt generation module, generate the corresponding HASH values of each e-file, and by the corresponding HASH values of each e-file and
Unique contract ID of electronic contract merges the corresponding Quick Response Code of generation after being encrypted by AES；
Layout files generation module, merges generation layout files, and the Quick Response Code is inserted into described by each e-file
In layout files；
Electronic contract generation module, adds timestamp and digital signature in the layout files, forms formal electronic contract simultaneously
Issue, the both sides signed a contract obtain corresponding encryption key.
8. a kind of generation system of electronic contract chain of evidence according to claim 6, it is characterised in that：The acquisition module
The e-file for gathering and generating includes：Associated materials needed for the identity card image of party, the image of transactor, application with
And electronic contract.
9. a kind of generation system of electronic contract chain of evidence as claimed in claim 8, it is characterised in that：The acquisition module
In, identity card image is gathered by identity card identifier, and transactor's image is gathered by video image collector, needed for application
Associated materials are gathered by high photographing instrument or scanner, and the associated materials also include electronic material.
10. a kind of generation system of electronic contract chain of evidence as claimed in claims 6 or 7, it is characterised in that：The system is also wrapped
Include：
Authentication module；When needing to extract the corresponding e-file of electronic contract from data bank, the electronics in verifying data storehouse
Whether file is tampered, i.e., the e-file submitted when whether the e-file in verifying data storehouse is by contract signing；It is described
Authentication module specifically performs following steps：
The Quick Response Code on the electronic contract is recognized first, obtains the value of Quick Response Code；
Then the value of the Quick Response Code is decrypted using the encryption key, obtains each HASH values；
Corresponding e-file is obtained from the data bank finally according to unique contract ID, and by each electronics got
The corresponding HASH values of file generated, the HSAH values that it is obtained with being decrypted in previous step are compared, if identical, are not usurped
Change.
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