CN105245342A - Smart phone-based electronic contract signing method and system - Google Patents
Smart phone-based electronic contract signing method and system Download PDFInfo
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- CN105245342A CN105245342A CN201510582873.2A CN201510582873A CN105245342A CN 105245342 A CN105245342 A CN 105245342A CN 201510582873 A CN201510582873 A CN 201510582873A CN 105245342 A CN105245342 A CN 105245342A
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Abstract
The invention discloses a smart phone-based electronic contract signing method and system. The method includes the following steps that: a server generates a first electronic contract through utilizing the identity information, signature and/or stamp information of a first signatory, and transmits the first electronic contract to a smart phone; the smart phone receives the first electronic contract, detects the authenticity of the first electronic contract, if the authenticity of the first electronic contract is zero, the method terminates; the smart phone generates a second electronic contract through utilizing the identity information, signature and/or stamp information and the first electronic contract which are obtained by the smart phone and transmits the second electronic contract to the server; and the server receives the second electronic contract, and detects the authenticity of the second electronic contract, if the authenticity of the second electronic contract is zero, the method terminates, otherwise, electronic contract signing is completed. According to the smart phone-based electronic contract signing method and system of the invention, the two signatories both detect the authenticity of the electronic contracts which are signed and received by the signatories, if the authenticity of the electronic contracts are zero, contract signing is stopped, and therefore, security can be ensured, and disavowing can be prevented; and only two electronic device ends are involved, and the assistance of a third side is not required. The method and system have the advantages of simplicity and reliability.
Description
Technical field
The present invention relates to a kind of electronic contract based on smart mobile phone signature method and system, belong to electronic signature field.
Background technology
The development economic and social with this, ecommerce obtains and applies more and more widely, when carrying out business transaction on line, it is special in both parties sign a contract, how to prevent the side wherein from denying signed contract, being the key of ecommerce, Mobile business, is carry out one of key issue that online trading must solve.
And universal along with smart mobile phone and mobile Internet, people more and more carry out network trading by smart mobile phone, how to ensure to prevent on smart mobile phone to sign a contract either party deny, be a urgent problem.
Summary of the invention
For solving the problems of the technologies described above, the present invention proposes a kind of electronic contract based on smart mobile phone signature method and system, and wherein, the identity information of server by utilizing first signatory, signature and/or seal information generate the first electronic contract, and send to smart mobile phone; Smart mobile phone receives the first electronic contract, and carries out authenticity detection to it, if authenticity is no, then this method stops running; The identity information of the second signatory that smart mobile phone utilizes it to obtain, signature and/or seal information and the first electronic contract generate the second electronic contract, and the second electronic contract is sent to server; Server receives the second electronic contract, and carries out authenticity detection to it, if authenticity is no, then this method stops running; Otherwise complete electronic contract signature.The both sides of signature electronic contract can carry out authenticity detection to the electronic contract signed of the other side received, if authenticity is no, then stop contract signature, thus ensure fail safe and side's property denied.And this method only involves two electronic equipment ends, does not need the assistance of the third party, has simple and reliable feature.
In order to achieve the above object, technical scheme of the present invention is as follows:
The invention provides a kind of electronic contract signature method based on smart mobile phone, as shown in Figure 1, comprise the following steps:
The identity information of server by utilizing first signatory, signature and/or seal information generate the first electronic contract, and send to smart mobile phone;
Smart mobile phone receives the first electronic contract, and carries out authenticity detection to it, if authenticity is no, then this method stops running;
The identity information of the second signatory that smart mobile phone utilizes it to obtain, signature and/or seal information and the first electronic contract generate the second electronic contract, and the second electronic contract is sent to server;
Server receives the second electronic contract, and carries out authenticity detection to it, if authenticity is no, then this method stops running; Otherwise complete electronic contract signature.
As preferably, the identity information of described server by utilizing first signatory, signature and/or seal information generate the first electronic contract and are specially, the secret key encryption of server by utilizing first signatory adds the electronic contract document original paper of identity information, signature and/or the seal information being stamped the first signatory, obtains the first electronic contract;
Described smart mobile phone carries out authenticity detection to the first electronic contract and is specially, and utilize the PKI of the first signatory to be decrypted the first electronic contract, if successful decryption, then authenticity is true; Otherwise authenticity is no.
As preferably, the identity information of the second signatory that described smart mobile phone utilizes it to obtain, signature and/or seal information and the first electronic contract generate the second electronic contract and are specially, smart mobile phone utilizes the PKI of the first signatory to be decrypted the first electronic contract and obtains described electronic contract document original paper, described electronic contract document original paper is added a cover the identity information of the second signatory, signature and/or seal information, and utilize the secret key encryption of the second signatory, thus obtain the second electronic contract;
Described server carries out authenticity detection to the second electronic contract and is specially, if successfully utilize the PKI of the second signatory to be decrypted the second electronic contract, and all the other contents except the identity information of the second signatory, signature and/or seal information in the temporary electronic contract obtained are consistent with described electronic contract document original paper, then authenticity is true; Otherwise authenticity is no.
As preferably, described smart mobile phone detect the authenticity of the first electronic contract be true after, the first electronic contract is shown on the touchscreen.
As preferably, the signing messages that described smart mobile phone obtains the second signatory is specially: the signing messages being obtained the second signatory by touch-screen.
The invention provides a kind of electronic contract signature system based on smart mobile phone, comprise with lower module:
Server, for obtaining and utilizing the identity information of the first signatory, signature and/or seal information to generate the first electronic contract, and sends to smart mobile phone; And receive the second electronic contract from smart mobile phone, and carry out authenticity detection, if authenticity is true, then complete the signature of this electronic contract;
Smart mobile phone, for receiving the first electronic contract from server, and carry out authenticity detection, if authenticity is true, the identity information of the second signatory then utilizing it to obtain, signature and/or seal information and the first electronic contract generate the second electronic contract, and the second electronic contract is sent to server.
As preferably, the identity information of described server by utilizing first signatory, signature and/or seal information generate the first electronic contract and are specially, the secret key encryption of server by utilizing first signatory adds the electronic contract document original paper of identity information, signature and/or the seal information being stamped the first signatory, obtains the first electronic contract;
Described smart mobile phone carries out authenticity detection to the first electronic contract and is specially, and utilize the PKI of the first signatory to be decrypted the first electronic contract, if successful decryption, then authenticity is true; Otherwise authenticity is no.
As preferably, the identity information of the second signatory that described smart mobile phone utilizes it to obtain, signature and/or seal information and the first electronic contract generate the second electronic contract and are specially, smart mobile phone utilizes the PKI of the first signatory to be decrypted the first electronic contract and obtains described electronic contract document original paper, described electronic contract document original paper is added a cover the identity information of the second signatory, signature and/or seal information, and utilize the secret key encryption of the second signatory, thus obtain the second electronic contract;
Described server carries out authenticity detection to the second electronic contract and is specially, if successfully utilize the PKI of the second signatory to be decrypted the second electronic contract, and all the other contents except the identity information of the second signatory, signature and/or seal information in the temporary electronic contract obtained are consistent with described electronic contract document original paper, then authenticity is true; Otherwise authenticity is no.
As preferably, described smart mobile phone detect the authenticity of the first electronic contract be true after, the first electronic contract is shown on the touchscreen.
As preferably, the signing messages that described smart mobile phone obtains the second signatory is specially: the signing messages being obtained the second signatory by touch-screen.
Beneficial effect of the present invention:
(1) in a kind of signature of the electronic contract based on smart mobile phone method and system provided by the present invention, the both sides of signature electronic contract can carry out authenticity detection to the electronic contract signed of the other side received, if authenticity is no, then stop contract signature, thus ensure fail safe and side's property denied.And this method only involves server and smart mobile phone end, does not need the assistance of the third party, has simple and reliable feature.
(2) provided by the present invention a kind of based in the electronic contract signature method of smart mobile phone, utilize public-key cryptosystem to prevent people one side in signature electronic contract from denying, thus ensure the reliability that this electronic contract is signed.
(3) smart mobile phone utilizes touch-screen to obtain the signing messages of the second signatory, does not need extra equipment, has the advantage simple, cost is low.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of electronic contract signature method based on smart mobile phone provided by the invention;
Embodiment
Below in conjunction with embodiment, the present invention is further detailed explanation.
Embodiment 1
The invention provides a kind of electronic contract signature method based on smart mobile phone, as shown in Figure 1, comprise the following steps:
Step S1: the identity information of server by utilizing first signatory, signature and/or seal information generate the first electronic contract, and send to smart mobile phone;
Step S2: smart mobile phone receives the first electronic contract, and authenticity detection is carried out to it, if authenticity is no, then this method stops running;
Step S3: the identity information of the second signatory that smart mobile phone utilizes it to obtain, signature and/or seal information and the first electronic contract generate the second electronic contract, and the second electronic contract is sent to server;
Step S4: server receives the second electronic contract, and authenticity detection is carried out to it, if authenticity is no, then this method stops running; Otherwise complete electronic contract signature.
Wherein, when server and smart mobile phone need identity, signature, the seal information obtaining signature both sides, the identity, signature, the seal information that have stored can be read, also can require that signature both sides are inputted by input equipment, such as: the keyboard held by PC, the dummy keyboard input identity information of smart mobile phone; By the touch-screen input signing messages of handwriting input device, smart mobile phone; By scanner input seal information etc.
Due to can fraud be there is on network, such as: hacker certain signatory that can disguise oneself as sends electronic contract; The electronic contract denial etc. that signatory likely can send it.Now, carry out authenticity detection with regard to needing to received electronic contract, if authenticity is no, then the method is out of service.
Provided by the present invention a kind of based in the electronic contract signature method of smart mobile phone, the both sides of signature electronic contract can carry out authenticity detection to the electronic contract signed of the other side received, if authenticity is no, then stop contract signature, thus ensure fail safe and side's property denied.And this method only involves two electronic equipment ends, does not need the assistance of the third party, has simple and reliable feature.
The identity information of described server by utilizing first signatory, signature and/or seal information generate the first electronic contract and are specially, the secret key encryption of server by utilizing first signatory adds the electronic contract document original paper of identity information, signature and/or the seal information being stamped the first signatory, obtains the first electronic contract;
Described smart mobile phone carries out authenticity detection to the first electronic contract and is specially, and utilize the PKI of the first signatory to be decrypted the first electronic contract, if successful decryption, then authenticity is true; Otherwise authenticity is no.
Provided by the present invention a kind of based in the electronic contract signature method of smart mobile phone, utilize public-key cryptosystem to prevent the first signatory from denying.Because only there is the first signatory to know the key of oneself, therefore, only there is the first signatory can generate this first electronic contract, also only have the PKI of the first signatory can decipher this first electronic contract, therefore, can prevent the first signatory from denying.
The identity information of the second signatory that described smart mobile phone utilizes it to obtain, signature and/or seal information and the first electronic contract generate the second electronic contract and are specially, smart mobile phone utilizes the PKI of the first signatory to be decrypted the first electronic contract and obtains described electronic contract document original paper, described electronic contract document original paper is added a cover the identity information of the second signatory, signature and/or seal information, and utilize the secret key encryption of the second signatory, thus obtain the second electronic contract;
Described server carries out authenticity detection to the second electronic contract and is specially, if successfully utilize the PKI of the second signatory to be decrypted the second electronic contract, and all the other contents except the identity information of the second signatory, signature and/or seal information in the temporary electronic contract obtained are consistent with described electronic contract document original paper, then authenticity is true; Otherwise authenticity is no.
Provided by the present invention a kind of based in the electronic contract signature method of smart mobile phone, utilize public-key cryptosystem to prevent the second signatory from denying.Because only there is the second signatory to know the key of oneself, therefore, only there is the second signatory can generate this second electronic contract, also only have the PKI of the second signatory can decipher this second electronic contract, therefore, can prevent the second signatory from denying.Also to verify signed contract and the content consistency of original contract simultaneously.
Described smart mobile phone detect the authenticity of the first electronic contract be true after, the first electronic contract is shown on the touchscreen.
In order to the content allowing the second signatory know this first electronic contract easily, need the particular content of the first electronic contract to show on the touchscreen.
The signing messages that described smart mobile phone obtains the second signatory is specially: the signing messages being obtained the second signatory by touch-screen.
In present stage, especially on smart mobile phone (user can be signed by screen), obtain the signature of user easily via hand-written touch screen, thus user-friendly.
Embodiment 2
The invention provides a kind of electronic contract signature system based on smart mobile phone, comprise with lower module:
Server, for obtaining and utilizing the identity information of the first signatory, signature and/or seal information to generate the first electronic contract, and sends to smart mobile phone; And receive the second electronic contract from smart mobile phone, and carry out authenticity detection, if authenticity is true, then complete the signature of this electronic contract;
Smart mobile phone, for receiving the first electronic contract from server, and carry out authenticity detection, if authenticity is true, the identity information of the second signatory then utilizing it to obtain, signature and/or seal information and the first electronic contract generate the second electronic contract, and the second electronic contract is sent to server.
The identity information of described server by utilizing first signatory, signature and/or seal information generate the first electronic contract and are specially, the secret key encryption of server by utilizing first signatory adds the electronic contract document original paper of identity information, signature and/or the seal information being stamped the first signatory, obtains the first electronic contract;
Described smart mobile phone carries out authenticity detection to the first electronic contract and is specially, and utilize the PKI of the first signatory to be decrypted the first electronic contract, if successful decryption, then authenticity is true; Otherwise authenticity is no.
The identity information of the second signatory that described smart mobile phone utilizes it to obtain, signature and/or seal information and the first electronic contract generate the second electronic contract and are specially, smart mobile phone utilizes the PKI of the first signatory to be decrypted the first electronic contract and obtains described electronic contract document original paper, described electronic contract document original paper is added a cover the identity information of the second signatory, signature and/or seal information, and utilize the secret key encryption of the second signatory, thus obtain the second electronic contract;
Described server carries out authenticity detection to the second electronic contract and is specially, if successfully utilize the PKI of the second signatory to be decrypted the second electronic contract, and all the other contents except the identity information of the second signatory, signature and/or seal information in the temporary electronic contract obtained are consistent with described electronic contract document original paper, then authenticity is true; Otherwise authenticity is no.
Described smart mobile phone detect the authenticity of the first electronic contract be true after, the first electronic contract is shown on the touchscreen.
The signing messages that described smart mobile phone obtains the second signatory is specially: the signing messages being obtained the second signatory by touch-screen.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range of the invention.
Claims (10)
1. one kind based on the electronic contract signature method of smart mobile phone, it is characterized in that, comprises the following steps:
The identity information of server by utilizing first signatory, signature and/or seal information generate the first electronic contract, and send to smart mobile phone;
Smart mobile phone receives the first electronic contract, and carries out authenticity detection to it, if authenticity is no, then this method stops running;
The identity information of the second signatory that smart mobile phone utilizes it to obtain, signature and/or seal information and the first electronic contract generate the second electronic contract, and the second electronic contract is sent to server;
Server receives the second electronic contract, and carries out authenticity detection to it, if authenticity is no, then this method stops running; Otherwise complete electronic contract signature.
2. the electronic contract signature method based on smart mobile phone according to claim 1, is characterized in that:
The identity information of described server by utilizing first signatory, signature and/or seal information generate the first electronic contract and are specially, the secret key encryption of server by utilizing first signatory adds the electronic contract document original paper of identity information, signature and/or the seal information being stamped the first signatory, obtains the first electronic contract;
Described smart mobile phone carries out authenticity detection to the first electronic contract and is specially, and utilize the PKI of the first signatory to be decrypted the first electronic contract, if successful decryption, then authenticity is true; Otherwise authenticity is no.
3. the electronic contract signature method based on smart mobile phone according to claim 2, is characterized in that:
The identity information of the second signatory that described smart mobile phone utilizes it to obtain, signature and/or seal information and the first electronic contract generate the second electronic contract and are specially, smart mobile phone utilizes the PKI of the first signatory to be decrypted the first electronic contract and obtains described electronic contract document original paper, described electronic contract document original paper is added a cover the identity information of the second signatory, signature and/or seal information, and utilize the secret key encryption of the second signatory, thus obtain the second electronic contract;
Described server carries out authenticity detection to the second electronic contract and is specially, if successfully utilize the PKI of the second signatory to be decrypted the second electronic contract, and all the other contents except the identity information of the second signatory, signature and/or seal information in the temporary electronic contract obtained are consistent with described electronic contract document original paper, then authenticity is true; Otherwise authenticity is no.
4. the electronic contract signature method based on smart mobile phone according to any one of claim 1-3, is characterized in that:
Described smart mobile phone detect the authenticity of the first electronic contract be true after, the first electronic contract is shown on the touchscreen.
5. the electronic contract signature method based on smart mobile phone according to any one of claim 1-4, it is characterized in that, the signing messages that described smart mobile phone obtains the second signatory is specially: the signing messages being obtained the second signatory by touch-screen.
6. based on an electronic contract signature system for smart mobile phone, it is characterized in that, comprise with lower module:
Server, for obtaining and utilizing the identity information of the first signatory, signature and/or seal information to generate the first electronic contract, and sends to smart mobile phone; And receive the second electronic contract from smart mobile phone, and carry out authenticity detection, if authenticity is true, then complete the signature of this electronic contract;
Smart mobile phone, for receiving the first electronic contract from server, and carry out authenticity detection, if authenticity is true, the identity information of the second signatory then utilizing it to obtain, signature and/or seal information and the first electronic contract generate the second electronic contract, and the second electronic contract is sent to server.
7. the electronic contract signature system based on smart mobile phone according to claim 6, is characterized in that:
The identity information of described server by utilizing first signatory, signature and/or seal information generate the first electronic contract and are specially, the secret key encryption of server by utilizing first signatory adds the electronic contract document original paper of identity information, signature and/or the seal information being stamped the first signatory, obtains the first electronic contract;
Described smart mobile phone carries out authenticity detection to the first electronic contract and is specially, and utilize the PKI of the first signatory to be decrypted the first electronic contract, if successful decryption, then authenticity is true; Otherwise authenticity is no.
8. the electronic contract signature system based on smart mobile phone according to claim 7, is characterized in that:
The identity information of the second signatory that described smart mobile phone utilizes it to obtain, signature and/or seal information and the first electronic contract generate the second electronic contract and are specially, smart mobile phone utilizes the PKI of the first signatory to be decrypted the first electronic contract and obtains described electronic contract document original paper, described electronic contract document original paper is added a cover the identity information of the second signatory, signature and/or seal information, and utilize the secret key encryption of the second signatory, thus obtain the second electronic contract;
Described server carries out authenticity detection to the second electronic contract and is specially, if successfully utilize the PKI of the second signatory to be decrypted the second electronic contract, and all the other contents except the identity information of the second signatory, signature and/or seal information in the temporary electronic contract obtained are consistent with described electronic contract document original paper, then authenticity is true; Otherwise authenticity is no.
9. the electronic contract signature system based on smart mobile phone according to any one of claim 6-8, is characterized in that:
Described smart mobile phone detect the authenticity of the first electronic contract be true after, the first electronic contract is shown on the touchscreen.
10. the electronic contract signature system based on smart mobile phone according to any one of claim 6-9, it is characterized in that, the signing messages that described smart mobile phone obtains the second signatory is specially: the signing messages being obtained the second signatory by touch-screen.
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| CN201510582873.2A CN105245342A (en) | 2015-09-14 | 2015-09-14 | Smart phone-based electronic contract signing method and system |
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| CN105787741A (en) * | 2016-02-17 | 2016-07-20 | 林慕新 | Electronic contract signing system based on mobile phone client, and application method thereof |
| CN106022775A (en) * | 2016-05-13 | 2016-10-12 | 邓迪 | File signature method and system based on block chains |
| CN107977556A (en) * | 2017-11-29 | 2018-05-01 | 北京书生电子技术有限公司 | The method and device of stamped signature is carried out to online e-file |
| CN108287617A (en) * | 2018-01-17 | 2018-07-17 | 阿里巴巴集团控股有限公司 | A kind of contracting method and device |
| CN108763898A (en) * | 2018-05-22 | 2018-11-06 | 李招兵 | A kind of information processing method and system |
| CN109660494A (en) * | 2017-10-11 | 2019-04-19 | 金联汇通信息技术有限公司 | The signature method, apparatus and server of electronic contract |
| CN112069257A (en) * | 2020-09-03 | 2020-12-11 | 平安信托有限责任公司 | Contract signing method, device, system and storage medium |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105787741A (en) * | 2016-02-17 | 2016-07-20 | 林慕新 | Electronic contract signing system based on mobile phone client, and application method thereof |
| CN106022775A (en) * | 2016-05-13 | 2016-10-12 | 邓迪 | File signature method and system based on block chains |
| CN109660494A (en) * | 2017-10-11 | 2019-04-19 | 金联汇通信息技术有限公司 | The signature method, apparatus and server of electronic contract |
| CN107977556A (en) * | 2017-11-29 | 2018-05-01 | 北京书生电子技术有限公司 | The method and device of stamped signature is carried out to online e-file |
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| CN108763898A (en) * | 2018-05-22 | 2018-11-06 | 李招兵 | A kind of information processing method and system |
| CN112069257A (en) * | 2020-09-03 | 2020-12-11 | 平安信托有限责任公司 | Contract signing method, device, system and storage medium |
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Application publication date: 20160113 |