CN111581655A - Intelligent identification method and system for signature position - Google Patents
Intelligent identification method and system for signature position Download PDFInfo
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- CN111581655A CN111581655A CN202010386756.XA CN202010386756A CN111581655A CN 111581655 A CN111581655 A CN 111581655A CN 202010386756 A CN202010386756 A CN 202010386756A CN 111581655 A CN111581655 A CN 111581655A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/40—Document-oriented image-based pattern recognition
Abstract
The invention discloses an intelligent identification method and system of signature positions, wherein the method comprises the following steps: s1 is used for receiving the signature seal request sent by the client; s2 is used for auditing the signature stamping request and sending a signature stamping instruction after the audit is passed; s3 is used for positioning and identifying the signature stamping position in the contract file; s4 is a step for performing a signature seal operation on the identified position. Therefore, the intelligent identification method and the system for the signature position, provided by the invention, have the advantages that after the contract is generated, the signature and the seal are carried out at different positions of different contracts, the signature seal position is intelligently identified, the signature seal is carried out, and the effectiveness of the contract is ensured; the problem of signature sealing of different contracts is solved, the signature sealing speed is accelerated, and differentiated documents can be quickly applied to signature sealing of various documents through unified signature sealing service.
Description
Technical Field
The invention relates to the field of computer software, in particular to an intelligent identification method and system for signature positions.
Background
Along with the technology is more and more deep into the core link of finance. Three major areas of finance: credit, financing, and payment have all been changed by financial technology companies. The changes are going deeper and deeper, and the internet traffic is increasingly divided by melons; in the internet financial industry, money is consumed in time, the result is determined quickly, auditing and paying are faster, and a consumer selects who, in the process, signing of a contract is particularly important, and the rights and interests of the client and the company are guaranteed. In the prior art, after the contract is generated, signature stamping needs to be carried out at different positions of different contracts, so that the signature stamping speed is influenced; different contracts are signed and sealed at different positions, the operation needs to be finished manually, the differentiated documents cannot realize uniform signature sealing service, the efficiency of signing and sealing various documents is reduced, and the efficiency of completing the contracts is influenced.
Disclosure of Invention
The invention aims to provide an intelligent signature position identification method and system.
The invention provides an intelligent identification method of a signature position, which comprises the following steps:
s1 is used for receiving the signature seal request sent by the client;
s2 is used for auditing the signature stamping request and sending a signature stamping instruction after the audit is passed;
s3 is used for positioning and identifying the signature stamping position in the contract file;
s4 is a step for performing a signature seal operation on the identified position.
The step of S1, configured to receive a signature stamping request sent by a client, includes: s11 is used for the user to input the signature seal request through the mobile terminal or the computer terminal; and S12 is used for the mobile terminal or the computer terminal to send the signature stamping request to the server through the Internet. The S2 is configured to audit the signature stamping request, and the step of sending the signature stamping instruction after the audit is passed includes: s21 a step for providing an authentication service by an electronic authentication service provider of a third party; s22 is used for carrying out the step of license confirmation on the signing behavior through the verification operation when the electronic signature is used; s23 is for initiating the step of S3 when the verification operation is permitted. The step S3 of locating and identifying the signature stamping position in the contract document includes: s31 is used for classifying files and skipping over contract files without signature and seal; downloading the contract file needing signature and seal to the local for the next operation; s32 is used for configuring the special characters on the contract document in the rule according to the signature seal rule; s33 is used for positioning and identifying the position of the special character in the contract file of the signature seal, and the step of judging the position of the signature seal in the contract file by taking the special character as the center; s34 is a step for executing a signature seal instruction to the position of the located special character. The step of S4 performing a signature stamping operation on the identified location includes: s41 is used for judging whether the contract document is signed, sealed or signed and sealed at the same time according to different special characters, and distinguishing the sealed steps corresponding to different contract documents according to different special characters; s42 is used for obtaining the signature picture or signature picture of the client user; s43 is used for positioning the acquired signature picture and signature picture to the file signature seal position respectively; and S44 is used for converting the electronic signature operation into the electronic signature operation consistent with the paper file sealing operation through the image processing technology, encrypting the conversion process and converting the contract file into a PDF format file.
The invention provides an intelligent identification system of signature position, comprising: a module for receiving a signature stamping request sent by a client; the module is used for auditing the signature stamping request and sending a signature stamping instruction after the audit is passed; the module is used for positioning and identifying the signature stamping position in the contract file; and a module for performing a signature stamping operation on the identified location.
The module for receiving the signature stamping request sent by the client comprises: the submodule is used for a user to input a signature stamping request through a mobile terminal or a computer terminal; and the sub-module is used for the mobile terminal or the computer terminal to send the signature stamping request to the server side through the Internet. The module for auditing the signature stamping request and sending the signature stamping instruction after the audit is passed comprises: s21 is used for providing the submodule of the authentication service through the electronic authentication service provider of the third party; s22 is sub-module for making the signing action be approved by the verification operation when using the electronic signature; and S23 is used for starting a sub-module for positioning and identifying the signature stamping position in the contract file after the verification operation is permitted. The module for locating and identifying the signature stamping position in the contract file comprises: the system is used for classifying the files and skipping over contract files which do not need signature stamping; downloading the contract file needing signature and stamping to a submodule locally waiting for the next operation; the submodule is used for configuring the special characters on the contract document in the rule according to the signature stamping rule; a submodule for locating and identifying the position of the special character in the contract document of the signature seal, and judging the position of the signature seal in the contract document by taking the special character as the center; and the submodule is used for carrying out signature stamping instructions on the positions of the located special characters. The means for performing a signature stamping operation on the identified location comprises: a submodule for judging whether the contract document is signed, sealed or signed and sealed at the same time according to different special characters, and distinguishing sealed corresponding to different contract documents according to different special characters; a sub-module for obtaining a signature picture or a signature picture of a client user; the submodule is used for respectively positioning the acquired signature picture and the acquired signature picture to a file signature stamping position; and the submodule is used for converting the electronic signature operation into the operation consistent with the paper file stamping operation through an image processing technology, encrypting the conversion process and converting the contract file into a PDF format file.
According to the intelligent identification method and system for the signature position, after the contract is generated, signature and stamping are carried out at different positions of different contracts, the signature and stamping position is intelligently identified, signature and stamping are carried out, and the effectiveness of the contract is guaranteed; the problem of signature sealing of different contracts is solved, the signature sealing speed is accelerated, and differentiated documents can be quickly applied to signature sealing of various documents through unified signature sealing service.
Drawings
Fig. 1 is a schematic step diagram of an intelligent signature position identification method according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a step of S1 for receiving a signature stamping request sent by a client according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a step in which the S2 is used to perform an audit on the signature stamping request, and a signature stamping instruction is sent after the audit is passed according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating the step of S3 for locating and identifying the signature stamping position in the contract document according to the embodiment of the present invention;
fig. 5 is a schematic diagram illustrating the step of S4 for performing signature stamping operation on the identified location according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1, the present embodiment provides an intelligent signature position identification method, including the following steps:
s1 is used for receiving the signature seal request sent by the client;
s2 is used for auditing the signature stamping request and sending a signature stamping instruction after the audit is passed;
s3 is used for positioning and identifying the signature stamping position in the contract file;
s4 is a step for performing a signature seal operation on the identified position.
The person skilled in the art can understand that the signature comprises a signature and seal operation, after the contract is generated, the signature and the seal are carried out at different positions of different contracts, the signature seal position is intelligently identified, and the signature seal is carried out, so that the validity of the contract is ensured; the problem of signature sealing of different contracts is solved, the signature sealing speed is accelerated, and differentiated documents can be quickly applied to signature sealing of various documents through unified signature sealing service.
As shown in fig. 2, the step S1 of receiving a signature stamping request sent by a client includes:
s11 is used for the user to input the signature seal request through the mobile terminal or the computer terminal;
and S12 is used for the mobile terminal or the computer terminal to send the signature stamping request to the server through the Internet.
As can be understood by those skilled in the art, the contract signing of the user is facilitated, and the contract signing is more convenient and intelligent.
As shown in fig. 3, the S2 is configured to perform an audit on the signature stamping request, where the step of sending the signature stamping instruction after the audit is passed includes:
s21 a step for providing an authentication service by an electronic authentication service provider of a third party;
s22 is used for carrying out the step of license confirmation on the signing behavior through the verification operation when the electronic signature is used;
s23 is for initiating the step of S3 when the verification operation is permitted.
Those skilled in the art will understand that the ministry of industry and informatization stipulates that "electronic signature requires authentication by a third party and is provided by an electronic authentication service provider established by law", whereas for an electronic authentication service provider, namely a CA (digital authentication Authority), the CA is subject to business registration after permission of the ministry of trust and meets the requirements of the electronic authentication service administration, and at present, 42 Certificate authorities in China are qualified to issue CA certificates. The CA has the right to create an electronic signature certificate of an electronic signer (electronic signature) as a digital certificate recognized by the country. We have acquired a 'commercial cipher sales license' issued by the State Security administration, qualified as a third party service agent for the client to apply for a digital certificate. When the digital certificate is used for signing, in order to ensure the control of the user, an electronic signer is adopted to reserve a mobile phone number, a mobile phone verification code is sent by a platform, and the verification code is backfilled by the electronic signer to confirm the operation of the user, so that the operation safety is ensured.
As shown in fig. 4, the step S3 of locating and identifying the signature stamping position in the contract document includes:
s31 is used for classifying files and skipping over contract files without signature and seal; downloading the contract file needing signature and seal to the local for the next operation;
s32 is used for configuring the special characters on the contract document in the rule according to the signature seal rule;
s33 is used for positioning and identifying the position of the special character in the contract file of the signature seal, and the step of judging the position of the signature seal in the contract file by taking the special character as the center;
s34 is a step for executing a signature seal instruction to the position of the located special character.
As will be understood by those skilled in the art, locating the mark after the signature or signature appears in the contract document when locating the mark: "this character, after the typeface of signature or signature": "paste the user's signature picture behind; positioned behind characters such as stamping in a contract file ": ", behind the stamping or the like": the rear part of the file is pasted with a seal picture, and the signature picture and the seal picture do not cover characters below the file. And classifying the files according to the signature stamping rule, wherein the files needing signature stamping do not need to be skipped over, and the files needing signature stamping are downloaded to the local. And according to the signature stamping rule, finding the position of the special character in the file needing signature stamping for the special character in the configuration rule.
As shown in fig. 5, the step S4 of performing a signature sealing operation on the identified location includes:
s41 is used for judging whether the contract document is signed, sealed or signed and sealed at the same time according to different special characters, and distinguishing the sealed steps corresponding to different contract documents according to different special characters;
s42 is used for obtaining the signature picture or signature picture of the client user;
s43 is used for positioning the acquired signature picture and signature picture to the file signature seal position respectively;
and S44 is used for converting the electronic signature operation into the electronic signature operation consistent with the paper file sealing operation through the image processing technology, encrypting the conversion process and converting the contract file into a PDF format file.
As can be understood by those skilled in the art, during stamping, a user fills out a signature on a contract document at a client, converts a signature part into a picture, and standardizes the picture to a fixed format to be uploaded to a server; the user fills in the signature on the contract file at the client, and the signature part picture is normalized to a fixed format and uploaded to the server by scanning the contract file, so that the next calling is facilitated, and the signature and seal speed is accelerated. The signature stamping position is intelligently identified, signature stamping is carried out, and the effectiveness of the contract is guaranteed. The problem of signature sealing of different contracts is solved, the signature sealing speed is accelerated, and differentiated documents can be quickly applied to signature sealing of various documents only by uniform signature sealing service. After the contents of the electronic contract are agreed by a contracting party, the contract document is firstly converted into a PDF format, the conversion process is technically encrypted through a public key plus a private key and a hash function algorithm, the encryption is carried out according to the national standard to form a non-falsifiable document, the encryption mode of the national standard is carried out again in the process of uploading to a platform, the transmission process is an SSL transmission mode and accords with the national technical safety standard, when the contracting party uses the electronic signature and the electronic signature, the electronic contract, the electronic signature and the electronic signature cannot be falsified because the digital certificate has encryption, time and a public key hash function, and the electronic signature can be verified and approved by a judicial authentication organization through the electronic signature and the electronic signature of the process.
Example two
The embodiment provides an intelligent identification system of signature position, includes:
a module for receiving a signature stamping request sent by a client;
the module is used for auditing the signature stamping request and sending a signature stamping instruction after the audit is passed;
the module is used for positioning and identifying the signature stamping position in the contract file;
and a module for performing a signature stamping operation on the identified location.
As can be understood by those skilled in the art, the signature comprises a signature and seal operation, after the contract is generated, the signature and the seal are carried out at different positions of different contracts, the signature seal position is intelligently identified, and the signature seal is carried out, so that the validity of the contract is ensured. The problem of signature sealing of different contracts is solved, the signature sealing speed is accelerated, and differentiated documents can be quickly applied to signature sealing of various documents through unified signature sealing service.
Further, the module for receiving a signature stamping request sent by a client comprises:
the submodule is used for a user to input a signature stamping request through a mobile terminal or a computer terminal;
and the sub-module is used for the mobile terminal or the computer terminal to send the signature stamping request to the server side through the Internet.
As can be understood by those skilled in the art, the contract signing of the user is facilitated, and the contract signing is more convenient and intelligent.
Further, the module for auditing the signature stamping request and sending the signature stamping instruction after the audit is passed comprises:
s21 is used for providing the submodule of the authentication service through the electronic authentication service provider of the third party;
s22 is sub-module for making the signing action be approved by the verification operation when using the electronic signature;
and S23 is used for starting a sub-module for positioning and identifying the signature stamping position in the contract file after the verification operation is permitted.
Those skilled in the art will understand that the ministry of industry and informatization stipulates that "electronic signature requires authentication by a third party and is provided by an electronic authentication service provider established by law", whereas for an electronic authentication service provider, namely a CA (digital authentication Authority), the CA is subject to business registration after permission of the ministry of trust and meets the requirements of the electronic authentication service administration, and at present, 42 Certificate authorities in China are qualified to issue CA certificates. The CA has the right to create an electronic signature certificate of an electronic signer (electronic signature) as a digital certificate recognized by the country. We have acquired a 'commercial cipher sales license' issued by the State Security administration, qualified as a third party service agent for the client to apply for a digital certificate. When the digital certificate is used for signing, in order to ensure the control of the user, an electronic signer is adopted to reserve a mobile phone number, a mobile phone verification code is sent by a platform, and the verification code is backfilled by the electronic signer to confirm the operation of the user, so that the operation safety is ensured.
Further, the module for locating and identifying the signature stamping position in the contract file comprises:
the system is used for classifying the files and skipping over contract files which do not need signature stamping; downloading the contract file needing signature and stamping to a submodule locally waiting for the next operation;
the submodule is used for configuring the special characters on the contract document in the rule according to the signature stamping rule;
a submodule for locating and identifying the position of the special character in the contract document of the signature seal, and judging the position of the signature seal in the contract document by taking the special character as the center;
and the submodule is used for carrying out signature stamping instructions on the positions of the located special characters.
As will be understood by those skilled in the art, locating the mark after the signature or signature appears in the contract document when locating the mark: "this character, after the typeface of signature or signature": "paste the user's signature picture behind; positioned behind characters such as stamping in a contract file ": ", behind the stamping or the like": the rear part of the file is pasted with a seal picture, and the signature picture and the seal picture do not cover characters below the file. And classifying the files according to the signature stamping rule, wherein the files needing signature stamping do not need to be skipped over, and the files needing signature stamping are downloaded to the local. And according to the signature stamping rule, finding the position of the special character in the file needing signature stamping for the special character in the configuration rule.
Further, the means for performing a signature stamping operation on the identified location comprises:
a submodule for judging whether the contract document is signed, sealed or signed and sealed at the same time according to different special characters, and distinguishing sealed corresponding to different contract documents according to different special characters;
a sub-module for obtaining a signature picture or a signature picture of a client user;
the submodule is used for respectively positioning the acquired signature picture and the acquired signature picture to a file signature stamping position;
and the submodule is used for converting the electronic signature operation into the operation consistent with the paper file stamping operation through an image processing technology, encrypting the conversion process and converting the contract file into a PDF format file.
As can be understood by those skilled in the art, during stamping, a user fills out a signature on a contract document at a client, converts a signature part into a picture, and standardizes the picture to a fixed format to be uploaded to a server; the user fills in the signature on the contract file at the client, and the signature part picture is normalized to a fixed format and uploaded to the server by scanning the contract file, so that the next calling is facilitated, and the signature and seal speed is accelerated. The signature stamping position is intelligently identified, signature stamping is carried out, and the effectiveness of the contract is guaranteed. The problem of signature sealing of different contracts is solved, the signature sealing speed is accelerated, and differentiated documents can be quickly applied to signature sealing of various documents only by uniform signature sealing service. After the contents of the electronic contract are agreed by a contracting party, the contract document is firstly converted into a PDF format, the conversion process is technically encrypted through a public key plus a private key and a hash function algorithm, the encryption is carried out according to the national standard to form a non-falsifiable document, the encryption mode of the national standard is carried out again in the process of uploading to a platform, the transmission process is an SSL transmission mode and accords with the national technical safety standard, when the contracting party uses the electronic signature and the electronic signature, the electronic contract, the electronic signature and the electronic signature cannot be falsified because the digital certificate has encryption, time and a public key hash function, and the electronic signature can be verified and approved by a judicial authentication organization through the electronic signature and the electronic signature of the process.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An intelligent identification method for signature positions is characterized by comprising the following steps:
s1 is used for receiving the signature seal request sent by the client;
s2 is used for auditing the signature stamping request and sending a signature stamping instruction after the audit is passed;
s3 is used for positioning and identifying the signature stamping position in the contract file;
s4 is a step for performing a signature seal operation on the identified position.
2. The intelligent identification method of signature location as claimed in claim 1, wherein said step of S1 for receiving signature stamping request sent by client comprises:
s11 is used for the user to input the signature seal request through the mobile terminal or the computer terminal;
and S12 is used for the mobile terminal or the computer terminal to send the signature stamping request to the server through the Internet.
3. The intelligent identification method of signature position as claimed in claim 2, wherein said S2 is used for auditing the signature stamping request, and the step of sending the signature stamping command after the audit is passed includes: s21 a step for providing an authentication service by an electronic authentication service provider of a third party;
s22 is used for carrying out the step of license confirmation on the signing behavior through the verification operation when the electronic signature is used;
s23 is for initiating the step of S3 when the verification operation is permitted.
4. The intelligent identification method of signature position as claimed in claim 3, wherein said step of S3 for locating and identifying the signature stamping position in the contract document comprises:
s31 is used for classifying files and skipping over contract files without signature and seal; downloading the contract file needing signature and seal to the local for the next operation;
s32 is used for configuring the special characters on the contract document in the rule according to the signature seal rule;
s33 is used for positioning and identifying the position of the special character in the contract file of the signature seal, and the step of judging the position of the signature seal in the contract file by taking the special character as the center;
s34 is a step for executing a signature seal instruction to the position of the located special character.
5. The intelligent identification method of signature location as recited in claim 4, wherein said step of S4 for signature stamping operation on identified location comprises:
s41 is used for judging whether the contract document is signed, sealed or signed and sealed at the same time according to different special characters, and distinguishing the sealed steps corresponding to different contract documents according to different special characters;
s42 is used for obtaining the signature picture or signature picture of the client user;
s43 is used for positioning the acquired signature picture and signature picture to the file signature seal position respectively;
and S44 is used for converting the electronic signature operation into the electronic signature operation consistent with the paper file sealing operation through the image processing technology, encrypting the conversion process and converting the contract file into a PDF format file.
6. An intelligent signature position recognition system, comprising:
a module for receiving a signature stamping request sent by a client;
the module is used for auditing the signature stamping request and sending a signature stamping instruction after the audit is passed;
the module is used for positioning and identifying the signature stamping position in the contract file;
and a module for performing a signature stamping operation on the identified location.
7. The system of claim 6, wherein the means for receiving a signature seal request sent by a client comprises:
the submodule is used for a user to input a signature stamping request through a mobile terminal or a computer terminal;
and the sub-module is used for the mobile terminal or the computer terminal to send the signature stamping request to the server side through the Internet.
8. The system according to claim 7, wherein the module for auditing the signature sealing request and sending the signature sealing instruction after the audit is passed comprises:
s21 is used for providing the submodule of the authentication service through the electronic authentication service provider of the third party;
s22 is sub-module for making the signing action be approved by the verification operation when using the electronic signature;
and S23 is used for starting a sub-module for positioning and identifying the signature stamping position in the contract file after the verification operation is permitted.
9. The system of claim 8, wherein the means for identifying the location of the signature seal in the contract document comprises:
the system is used for classifying the files and skipping over contract files which do not need signature stamping; downloading the contract file needing signature and stamping to a submodule locally waiting for the next operation;
the submodule is used for configuring the special characters on the contract document in the rule according to the signature stamping rule;
a submodule for locating and identifying the position of the special character in the contract document of the signature seal, and judging the position of the signature seal in the contract document by taking the special character as the center;
and the submodule is used for carrying out signature stamping instructions on the positions of the located special characters.
10. The intelligent identification system of signature locations as recited in claim 9 wherein said module for signature stamping operations on identified locations comprises:
a submodule for judging whether the contract document is signed, sealed or signed and sealed at the same time according to different special characters, and distinguishing sealed corresponding to different contract documents according to different special characters;
a sub-module for obtaining a signature picture or a signature picture of a client user;
the submodule is used for respectively positioning the acquired signature picture and the acquired signature picture to a file signature stamping position;
and the submodule is used for converting the electronic signature operation into the operation consistent with the paper file stamping operation through an image processing technology, encrypting the conversion process and converting the contract file into a PDF format file.
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| CN202010386756.XA CN111581655A (en) | 2020-05-09 | 2020-05-09 | Intelligent identification method and system for signature position |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112000974A (en) * | 2020-09-11 | 2020-11-27 | 支付宝(杭州)信息技术有限公司 | Electronic signature method and device for document |
| CN112686648A (en) * | 2021-01-31 | 2021-04-20 | 重庆渝高科技产业(集团)股份有限公司 | Electronic signature management method and system for auditing signature files |
| CN113837876A (en) * | 2021-08-10 | 2021-12-24 | 深圳市高腾科技服务有限公司 | Automatic signature method, device, equipment and storage medium for transaction instruction |
| CN116842909A (en) * | 2023-06-12 | 2023-10-03 | 广东采华网络科技有限公司 | Intelligent signature method and system |
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| 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 |
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| CN112000974A (en) * | 2020-09-11 | 2020-11-27 | 支付宝(杭州)信息技术有限公司 | Electronic signature method and device for document |
| CN112686648A (en) * | 2021-01-31 | 2021-04-20 | 重庆渝高科技产业(集团)股份有限公司 | Electronic signature management method and system for auditing signature files |
| CN112686648B (en) * | 2021-01-31 | 2024-01-30 | 重庆渝高科技产业(集团)股份有限公司 | Electronic signature management method and system for auditing signature file |
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