CN103440444A - Method of signing electronic contract - Google Patents
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- CN103440444A CN103440444A CN2013103109618A CN201310310961A CN103440444A CN 103440444 A CN103440444 A CN 103440444A CN 2013103109618 A CN2013103109618 A CN 2013103109618A CN 201310310961 A CN201310310961 A CN 201310310961A CN 103440444 A CN103440444 A CN 103440444A
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000003999 initiator Substances 0.000 claims abstract description 36
- 238000010200 validation analysis Methods 0.000 claims description 9
- 239000007943 implant Substances 0.000 claims description 3
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- 238000005516 engineering process Methods 0.000 abstract description 7
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- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
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Abstract
The invention relates to a method of signing an electronic contract. The method comprises the following steps: all parties of the contract register at a CA center through fingerprints, and an electronic seal is generated; a pair of public and private keys are generated at the CA center for each party, and a digital certificate is generated by utilizing the public key and an account; an initiator collects fingerprint features and utilizes the private key to carry out digital signature to the electronic contract, the fingerprint features and account information of contract responders; information of the digital signature is decrypted by the CA center through the public key, and identity of the initiator is identified by the corresponding fingerprint; the electronic contract is encrypted by the CA center through the public key and is transmitted to each contract responder; each contract responder receives and decrypts the electronic contract through the respective private key, and verifies and affirms contract contents; each contract responder can carry out digital signature to the electronic contract through the respective private key; after the CA center receives and decrypts the electronic contract with the digital signature through the public key, the electronic seal is embedded, and the electronic contract is transmitted to all parties of the contract. According to the invention, through adopting the CA center to authenticate and combining the digital signature and a fingerprint identification technology, security and confidentiality of signing and transferring the electronic contract can be improved.
Description
Technical field
The present invention relates to e-commerce field, relate in particular to a kind of signing method of the electronic contract based on digital certificate and fingerprint identification technology.
Background technology
Electronic contract is normally signed by the mode of electronic data interchange and Email at present.This method operates more loaded down with trivial details, due to electronic contract is not encrypted in its confirmation and transmitting procedure, electronic contract is easily illegally intercepted or is revised, contract both sides secret of the trade and transaction security are constituted a threat to, and the signing process of electronic contract is also lacked to the security management and control.
Chinese patent application CN201310076065.X discloses the online method and system of concluding of a kind of electronic contract, comprising: receive the electronic contract essential information; The Party A confirms the electronic contract essential information; Generate electronic contract; After the Party B confirms the electronic contract essential information, the communicating terminal to the both Parties appointment sends the identifying code of signing a contract respectively; Receive respectively the identifying code of signing a contract that both sides reply, complete both sides' electronic contract and affix one's seal; The electronic contract that both sides are affixed one's seal sends to respectively the receiving terminal of both sides' appointment.Adopt this method, both electronic contract was not carried out to confidential treatment in transmission and conclusion process, also do not confirm contract signatory's legal identity, exist and go beyond one's commission or pretend to be the possibility of replying identifying code and signing electronic contract, there is the hidden danger of safety and privacy in the e-contracting process.
Summary of the invention
Technical matters solved by the invention is to provide a kind of signing method of electronic contract, the interior information of perhaps concluding process of avoiding other people to pretend to be or going beyond one's commission and conclude electronic contract and illegal intercepting and revise electronic contract.
For solving the problems of the technologies described above, the present invention adopts following scheme:
A kind of signing method of electronic contract, is characterized in that, it comprises step:
A: parties of contract, in the registration of CA center, gathers user profile and fingerprint template, generates user account and E-seal;
B: described CA center generates a pair of public and private key, and with described PKI and described account generating digital certificate, and granting account, private key and digital certificate separately given described parties of contract;
C: the electronic contract initiator gathers fingerprint characteristic, and with private key, the electron contract request msg is carried out to digital signature, and sending it to described CA center, described electron contract request msg comprises described electronic contract, fingerprint characteristic and contract responder accounts information;
D: described CA center, by the information of described PKI solution crammed digital signature, obtains initiator's electron contract request msg, and described fingerprint characteristic and described initiator's fingerprint template is compared, and verifies described initiator's identity;
E: when initiator's authentication is passed through, described CA center is given each contract responder with described PKI to described electronic contract encrypting and transmitting, otherwise in described CA, the described initiator of mind-set sends the authentication failure information;
F: described each contract responder receives and uses private key separately to decipher encrypted electronic contract, and demonstration validation electronic contract content;
G: demonstration validation electronic contract content by the time, described each contract responder carries out digital signature with private key separately to electronic contract, and sends described CA center to, otherwise in described CA, the described initiator of mind-set sends electronic contract content false information;
H: after the reception of described CA center the electronic contract by described each contract of PKI solution crammed responder digital signature, implant the E-seal of described parties of contract on described electronic contract, and send to described parties of contract.
Preferably, described electron contract request msg also comprises the electron contract term of validity, also comprised step before the H step: described CA center demonstration validation receives time of the electronic contract through digital signature of described each contract responder all in the described electron contract term of validity, otherwise in described CA, the described initiator of mind-set sends the electron contract information of exceeding the time limit.
Preferably, described CA center and described parties of contract all gather fingerprint image the feature that therefrom takes the fingerprint by the fingerprint characteristic harvester.
The private key of the described parties of contract preferably, generated in step B and digital certificate are provided to described parties of contract accordingly by USB Key equipment.
Preferably, the PIN code of described USB Key equipment is set to the fingerprint template in steps A.
Preferably, also comprise step after described step H: described CA center generates the electron contract daily record, and sends to described parties of contract.
Preferably, in step D, when the described initiator's of checking identity, described fingerprint characteristic and described initiator's fingerprint template is compared, and as both similarities surpass reservation threshold, described initiator's authentication is passed through, otherwise does not pass through for authentication.
Preferably, in step B, described private key and digital certificate are logined described CA central server network download by described parties of contract at user terminal and are obtained.
Preferably, described CA center comprises a cipher code generator, generates a pair of public and private key.
Preferably, in steps A, when described parties of contract is company or organization, gathers its legal representative's fingerprint characteristic and generate fingerprint template.
A kind of signing of electronic contract method that provides is provided, adopt the CA center certification and in conjunction with digital signature and fingerprint identification technology, confirm the to sign a contract legal identity of each side, and the content of electronic contract is carried out to the digital signature encryption, security and the confidentiality of the process of electron contract and transmission have been improved, the interior information of perhaps concluding process of avoiding other people to pretend to be or going beyond one's commission and conclude electronic contract and illegal intercepting and revise electronic contract.
The accompanying drawing explanation
The process flow diagram of the electron contract method that Fig. 1 is the embodiment of the present invention.
Embodiment
The invention provides a kind of signing method of electronic contract, clearer, clear and definite for making purpose of the present invention, technical scheme and effect, referring to the accompanying drawing examples, the present invention is described in more detail.
Electron contract in the embodiment of the present invention can be thought two, also can be for a plurality of.Before electron contract, the electronic contract content be conferred and finally be drafted in each signing side can to the concrete clause of electronic contract by modes such as fax, Emails, so that follow-up electron contract process.
The process flow diagram of the electron contract method that Fig. 1 is the embodiment of the present invention comprises step:.
A: parties of contract, in the registration of CA center, gathers user profile and fingerprint template, generates user account and E-seal;
Wherein, described CA center (Certificate Authority Center) is based on tripartite's authentication authority, reliable, just mechanism of fingerprint identification technology, can confirm to close the real effectiveness of the registration true identity in electronic transaction and certificate information with each side.Described parties of contract can go the log-in window at CA center to handle the registration formality in person, and the server that also can login the CA center by user terminal network carries out network registry.
While registering at the CA center, described parties of contract first sets CA center uniqueness account separately, the information such as scanned copy of name, identification card number, address, telephone number and the identity document of parties of contract are provided, and described CA verifies at center authenticity and the validity of described parties of contract identity document and log-on message.As register Fang Wei company, group or mechanism, operation license and duplicating and collection legal representative's fingerprint characteristic need be provided and generate fingerprint template.Described CA center and electronic contract each side all gather fingerprint image the feature that therefrom takes the fingerprint by the fingerprint characteristic harvester.Described fingerprint acquisition device comprises the fingerprint sensor that gathers fingerprint image.Like this, described parties of contract can gather fingerprint characteristic and generate the log-in password of fingerprint template as the CA center by described fingerprint acquisition device.
B: described CA center generates a pair of public and private key, and with described PKI and described account generating digital certificate, and granting account, private key and digital certificate separately given described parties of contract;
Wherein, described CA center comprises a cipher code generator, by RSA Algorithm, generates a pair of public and private key.Described PKI and described account generating digital certificate for described CA center.Described CA provides at center the physical storage medium of the private key that stores separately and digital certificate face to face to described parties of contract, and described physical storage medium can be USB flash disk or SD card.
Certainly, private key described here and digital certificate also can be downloaded and obtain at user terminal login CA central server network by described parties of contract, perhaps the private key of described parties of contract and digital certificate deposit different USB Key equipment in by the DES algorithm for encryption, and provide accordingly to described parties of contract.Described USB Key equipment can access use by USB interface at described user terminal, and its PIN code is set to the described fingerprint template in steps A.
C: the electronic contract initiator gathers fingerprint characteristic, and with private key, the electron contract request msg is carried out to digital signature, and sending it to described CA center, described electron contract request msg comprises described electronic contract, fingerprint characteristic and contract responder accounts information;
After the registration of the CA center of steps A and step B, described electronic contract each side just can confirm the electronic contract content that draft by fax, Email or other electronics load modes, and by electronic contract either party as the initiator of electron contract, start the signing step of electronic contract.In an embodiment of the present invention, described CA center and parties of contract all can realize communication by wired or wireless network.
Described parties of contract, after obtaining described private key and digital certificate, deposits it in described user terminal.If the granting of described private key and digital certificate is undertaken by USB Key equipment releasing mode, USB Key equipment is accessed to described user terminal by USB interface, described parties of contract is by gathering the fingerprint authentication PIN code and then can transferring private key separately.Due to the electron contract request msg after electronic signature, in encrypted state, it can guarantee that it is not illegally modified, intercepts and decodes in transport process, has guaranteed security and the confidentiality of electronic contract content.
D: described CA center, by the information of described PKI solution crammed digital signature, obtains initiator's electron contract request msg, and described fingerprint characteristic and described initiator's fingerprint template is compared, and verifies described initiator's identity;
Wherein, initiator's fingerprint characteristic and its fingerprint template when steps A is registered are compared in described CA center, and as both similarities surpass reservation threshold, the authentication of described parties of contract is passed through, otherwise does not pass through for authentication.
Here, after the electron contract request msg that described CA center receives, the first-selected legal identity of deciphering and verifying described initiator by fingerprint characteristic, the promoter who guarantees the signing of described electronic contract is the legal litigant of described electronic contract main body, has effectively avoided other people to go beyond one's commission or has pretended to be and initiate to sign the electronic contract request.
E: when initiator's authentication is passed through, described CA center is given each contract responder with described PKI to described electronic contract encrypting and transmitting, otherwise in described CA, the described initiator of mind-set sends the authentication failure information;
Here, while only having initiator's authentication to pass through, described CA center just can be encrypted described electronic contract by the des encryption algorithm with described PKI, and sends it to the contract responder of described electron contract request msg appointment.
F: described each contract responder receives and uses private key separately to decipher encrypted electronic contract, and demonstration validation electronic contract content;
Here, described each contract responder mainly confirms that whether described electronic contract content is consistent with the electronic contract content of drafting by electronic data in advance, take and guarantees the true sale wish that electronic contract content to be signed is parties of contract.
G: demonstration validation electronic contract content by the time, described each contract responder carries out digital signature with private key separately to electronic contract, and sends described CA center to, otherwise in described CA, the described initiator of mind-set sends electronic contract content false information;
Here, described each contract responder can directly call private key separately, or verifies that by collection fingerprint characteristic obtains the authority that described private key is called in PIN code and then acquisition.
H: after the reception of described CA center the electronic contract by described each contract of PKI solution crammed responder digital signature, implant the E-seal of described parties of contract on described electronic contract, and send to described parties of contract.
Final implantation the electronic contract of described parties of contract E-seal, can send to by modes such as server network or Emails the user of described parties of contract.Described parties of contract, after user terminal is confirmed legal identity with fingerprint authentication, just can obtain the electronic contract of having implanted the electronic signature of described parties of contract.
On the basis of above-described embodiment, in the signing method of electronic contract provided by the invention, described electron contract request msg can further include the electron contract term of validity, also comprised step before the H step: described CA center demonstration validation receives time of the electronic contract through digital signature of described each contract responder all in the described electron contract term of validity, otherwise in described CA, the described initiator of mind-set sends the electron contract information of exceeding the time limit.In order to make parties of contract understand the electron contract process, also comprise step after described step H: described CA center generates the electron contract daily record, and sends to described parties of contract.
In sum, the invention provides a kind of signing method of electronic contract, adopt the CA center certification and in conjunction with digital signature and fingerprint identification technology, confirm the to sign a contract legal identity of each side, and the content of electronic contract is carried out to the digital signature encryption, improved security and the confidentiality of the process of electron contract and transmission.
Be understandable that, for those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. the signing method of an electronic contract, is characterized in that, comprises step:
A: parties of contract, in the registration of CA center, gathers user profile and fingerprint template, generates user account and E-seal;
B: described CA center generates a pair of public and private key, and with described PKI and described account generating digital certificate, and granting account, private key and digital certificate separately given described parties of contract;
C: the electronic contract initiator gathers fingerprint characteristic, and with private key, the electron contract request msg is carried out to digital signature, and sending it to described CA center, described electron contract request msg comprises described electronic contract, fingerprint characteristic and contract responder accounts information;
D: described CA center, by the information of described PKI solution crammed digital signature, obtains initiator's electron contract request msg, and described fingerprint characteristic and described initiator's fingerprint template is compared, and verifies described initiator's identity;
E: when initiator's authentication is passed through, described CA center is given each contract responder with described PKI to described electronic contract encrypting and transmitting, otherwise in described CA, the described initiator of mind-set sends the authentication failure information;
F: described each contract responder receives and uses private key separately to decipher encrypted electronic contract, and demonstration validation electronic contract content;
G: demonstration validation electronic contract content by the time, described each contract responder carries out digital signature with private key separately to electronic contract, and sends described CA center to, otherwise in described CA, the described initiator of mind-set sends electronic contract content false information;
H: after the reception of described CA center the electronic contract by described each contract of PKI solution crammed responder digital signature, implant the E-seal of described parties of contract on described electronic contract, and send to described parties of contract.
2. the method for claim 1, it is characterized in that, described electron contract request msg also comprises the electron contract term of validity, also comprised step before the H step: described CA center demonstration validation receives time of the electronic contract through digital signature of described each contract responder all in the described electron contract term of validity, otherwise in described CA, the described initiator of mind-set sends the electron contract information of exceeding the time limit.
3. the method for claim 1, is characterized in that, described CA center and described parties of contract all gather fingerprint image the feature that therefrom takes the fingerprint by the fingerprint characteristic harvester.
4. the method for claim 1, is characterized in that, the private key of the described parties of contract generated in step B and digital certificate are provided to described parties of contract accordingly by USB Key equipment.
5. method as claimed in claim 4, is characterized in that, the PIN code of described USB Key equipment is set to the fingerprint template in steps A.
6. the method for claim 1, is characterized in that, also comprises step after described step H: described CA center generates the electron contract daily record, and sends to described parties of contract.
7. the method for claim 1, it is characterized in that, in step D, when the described initiator's of checking identity, described fingerprint characteristic and described initiator's fingerprint template is compared, as both similarities surpass reservation threshold, described initiator's authentication is passed through, otherwise does not pass through for authentication.
8. the method for claim 1, is characterized in that, in step B, described private key and digital certificate are logined described CA central server network download by described parties of contract at user terminal and obtained.
9. the method for claim 1, is characterized in that, described CA center comprises a cipher code generator, generates a pair of public and private key.
10. the method for claim 1, is characterized in that, in steps A, when described parties of contract is company or organization, gathers its legal representative's fingerprint characteristic and generate fingerprint template.
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| CN201310310961.8A CN103440444B (en) | 2013-07-16 | 2013-07-16 | The signing method of electronic contract |
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Cited By (24)
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| CN103778353A (en) * | 2014-01-28 | 2014-05-07 | 福建伊时代信息科技股份有限公司 | Method, device and system for signing electronic file |
| CN104065484A (en) * | 2014-06-26 | 2014-09-24 | 江苏买卖网电子商务有限公司 | Electronic contract platform realizing method based on SDK message and digital signature |
| CN104732133A (en) * | 2015-03-31 | 2015-06-24 | 努比亚技术有限公司 | Electronic contract signing method and system |
| CN104851037A (en) * | 2015-06-04 | 2015-08-19 | 中国电力科学研究院 | Method for signing electronic contract at mobile terminal |
| CN104954364A (en) * | 2015-05-25 | 2015-09-30 | 收付宝科技有限公司 | Electronic signature information pushing method and system |
| CN105245342A (en) * | 2015-09-14 | 2016-01-13 | 中合国际知识产权股份有限公司 | Smart phone-based electronic contract signing method and system |
| CN105426773A (en) * | 2015-11-03 | 2016-03-23 | 浙江律讯网络科技有限公司 | Cloud contract generation system and method |
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| CN107579827A (en) * | 2017-06-06 | 2018-01-12 | 江苏慧世联网络科技有限公司 | It is a kind of that method is signed based on the electronic document of trusted third party and facial recognition techniques |
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| CN108595938A (en) * | 2018-03-15 | 2018-09-28 | 兴业数字金融服务（上海）股份有限公司 | Electronic contract application range expanding method and system based on structuring control |
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| CN107579827A (en) * | 2017-06-06 | 2018-01-12 | 江苏慧世联网络科技有限公司 | It is a kind of that method is signed based on the electronic document of trusted third party and facial recognition techniques |
| CN107579827B (en) * | 2017-06-06 | 2020-12-22 | 江苏慧世联网络科技有限公司 | Electronic document signing method based on trusted third party and face recognition technology |
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| CN108416588A (en) * | 2018-02-14 | 2018-08-17 | 北京三六五八网络科技有限公司 | Data processing method and device for electronic transaction verification |
| CN108494559A (en) * | 2018-03-12 | 2018-09-04 | 北京航空航天大学 | A kind of electron contract method based on semi trusted third party |
| CN108494559B (en) * | 2018-03-12 | 2021-01-08 | 北京航空航天大学 | Electronic contract signing method based on semi-trusted third party |
| CN108595938A (en) * | 2018-03-15 | 2018-09-28 | 兴业数字金融服务（上海）股份有限公司 | Electronic contract application range expanding method and system based on structuring control |
| CN108595938B (en) * | 2018-03-15 | 2020-08-25 | 兴业数字金融服务（上海）股份有限公司 | Electronic contract application range expanding method and system based on structured control |
| CN108769012B (en) * | 2018-05-29 | 2020-08-04 | 山东恒云信息科技有限公司 | Method for independently authenticating bank electronic credit archive |
| CN108769012A (en) * | 2018-05-29 | 2018-11-06 | 山东恒云信息科技有限公司 | A method of independent authentication is carried out to bank electronic Credit File |
| CN109658041A (en) * | 2018-09-28 | 2019-04-19 | 平安科技（深圳）有限公司 | Generating means and its generation method, the equipment and readable storage medium storing program for executing of file |
| CN109635572B (en) * | 2018-11-05 | 2021-05-25 | 深圳变设龙信息科技有限公司 | Contract signing method and device based on block chain and terminal equipment |
| CN109635572A (en) * | 2018-11-05 | 2019-04-16 | 深圳变设龙信息科技有限公司 | A kind of contract signing method, apparatus and terminal device based on block chain |
| CN109767359A (en) * | 2018-12-14 | 2019-05-17 | 平安普惠企业管理有限公司 | Endorsement method, device, equipment and storage medium based on fingerprint recognition |
| CN109816329A (en) * | 2018-12-14 | 2019-05-28 | 深圳壹账通智能科技有限公司 | Intelligent contract signature method, system, computer equipment and storage medium |
| CN113661689A (en) * | 2018-12-31 | 2021-11-16 | 莱里达网络远程信息技术服务股份有限公司 | Universal authentication qualified contract signing method |
| CN109831308A (en) * | 2019-02-27 | 2019-05-31 | 上海棕榈电脑系统有限公司 | Digital signature authentication method, storage medium and equipment |
| CN110135807A (en) * | 2019-05-14 | 2019-08-16 | 极智(上海)企业管理咨询有限公司 | Electronic contract signs method, system, medium and electronic equipment |
| CN112329414A (en) * | 2020-10-22 | 2021-02-05 | 海南太美航空股份有限公司 | Electronic contract signing method and system and electronic equipment |
| CN113052603A (en) * | 2021-03-11 | 2021-06-29 | 杭州安恒信息安全技术有限公司 | Identity authentication method, identity authentication device, computer equipment and storage medium |
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Address after: T2-a2-a, Gaoxin industrial village, no.022, Gaoxin South 7th Road, Nanshan District, Shenzhen City, Guangdong Province, 518057 Patentee after: Shenzhen yaliote Technology Co.,Ltd. Address before: T2-a2-a, Gaoxin industrial village, no.022, Gaoxin South 7th Road, Nanshan District, Shenzhen City, Guangdong Province, 518057 Patentee before: SHENZHEN ARATEK BIOMETRICS TECHNOLOGY Co.,Ltd. |
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