CN202472646U - Electronic document management system - Google Patents
Electronic document management system Download PDFInfo
- Publication number
- CN202472646U CN202472646U CN2011203456889U CN201120345688U CN202472646U CN 202472646 U CN202472646 U CN 202472646U CN 2011203456889 U CN2011203456889 U CN 2011203456889U CN 201120345688 U CN201120345688 U CN 201120345688U CN 202472646 U CN202472646 U CN 202472646U
- Authority
- CN
- China
- Prior art keywords
- electronic
- file
- server
- electronic evidence
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Storage Device Security (AREA)
Abstract
The utility model provides an electronic document management system comprising a terminal; a system server comprising a first communication unit, which can be communicated with the terminal; a storage device; a document verification unit, which can be used for verifying and sending electronic documents; safety security verification unit, which can be used to compare digital fingerprints of electronic documents and electronic evidence packages to digital fingerprints stored in an electronic evidence server in order to verify the electronic documents. The terminal comprises a signature unit, which can be used for the electronic signature by using an electronic seal, and the electronic signature comprises a digital certificate and an electronic seal. A second communication unit is provided, and can be used to communicate with the system server and the electronic evidence server, and to send the electronic documents. A safety security unit used for generating and storing the electronic evidence package, and can be used to store the digital fingerprints in the electronic evidence server. A storage device can be used to store the electronic evidence package. By using the technical scheme provided in the utility model, the electronic signature and management of the electronic documents can be performed, and the electronic documents can be secured and verified, therefore the rights of users can be guaranteed.
Description
Technical field
The utility model relates to art file management technology, in particular to electronic document management system.
Background technology
For traditional document management, traditionally on paper contract especially, the Party A has drafted will issue Party B's affirmation of making amendment after the treaty content; After confirming several times so back and forth and printing; One side sends the other side after affixing one's seal and affixes one's seal and return again, and perhaps both sides are aspectant signatory, and such business workflow is often wasted great amount of time, financial resources and manpower; Follow-up contract management then more bothers; So many contract archives must have special people to be in charge of, because contract quantity is many, the possibility that data are made mistakes in the signature process is just big.
China's stem " information-based law truly "---" People's Republic of China's law of electronic signature " is formally effective.Therefore; Commercial letter electronic message through electronic signature; To have equal legal effect with the business documentation of papery; Electronic Signature Law regulation, electronic signature must meet several kinds of necessary conditions such as " electronic signature is made data when being used to sign electronically, and it is proprietary to belong to the electronic signature people ", " electronic signature is made data only by electronic signature people control during signature ", " the signature back can come to light to any change of electronic signature and content " simultaneously; Just can be regarded as reliable electronic signature, legal electronic signature in other words conj.or perhaps.
Yet for the management of electronic documents; In case occur such as to the signature of electronic contract and the preservation signature process of the electronic contract after accomplishing signature tight inadequately; Or the electronic contract in later stage management makes a fault, and often aspect right-safeguarding, possibly cause a lot of troubles even loss.
Therefore, need a kind of new electronic document management system, can easily e-file be signed electronically and manage, and this e-file is saved from damage and verify, guarantee user ' s right, the lifting user experience.
The utility model content
The utility model just is being based on the problems referred to above, has proposed a kind of new electronic document management system, can easily e-file be signed electronically and manage, and this e-file is saved from damage and verified, guarantees user ' s right, promotes user experience.
In view of this, the utility model proposes a kind of electronic document management system, comprising: system server; The terminal; And memory storage, wherein, said system server comprises: first communication unit, communicate with said terminal, and receive e-file to be verified or send the successful e-file of checking through transmission channel; The file verification unit is verified the said e-file to be verified that said first communication unit receives, and will be sent to said terminal through said first communication unit through the said e-file of checking; Save authentication unit from damage; From the electronic evidence bag of said user storage, extract the digital finger-print of said e-file; And the digital finger-print of e-file and the said digital finger-print that is stored in the electronic evidence server compared; And the digital finger-print of the said electronic evidence bag of said user storage compared with the said digital finger-print that is stored in the said electronic evidence server, verify the authenticity of said e-file; Said terminal comprises: signature unit, and utilize user's E-seal that said e-file is signed electronically, said electronic signature comprises digital certificate and E-seal; The second communication unit communicates with said system server and said electronic evidence server, sends the said e-file of said e-file to be verified or Receipt Validation success through said transmission channel; Save the unit from damage; Generation is used for the said electronic evidence bag of said e-file; And said electronic evidence bag is stored in the memory storage, and the digital finger-print of said electronic evidence bag and the digital finger-print of the said e-file in the said electronic evidence bag are kept in the said electronic evidence server; And said memory storage, store said electronic evidence bag.In this technical scheme; The user has the E-seal of unique correspondence with it; Be used on e-file, signing electronically, and through effective authentication such as utilizing third party's ca authentication mechanism to carry out authentication, thereby guarantee the legitimacy and the validity of user's electronic signature.And for signing the e-file of accomplishing; Through the digital finger-print of e-file and electronic data bag is compared; Thereby verify the authenticity and the legitimacy of this e-file, the digital finger-print here is meant " fingerprint " that e-file and electronic evidence bag is generated forms such as corresponding character string through MD5 or shal scheduling algorithm, and this digital finger-print is relevant with the content of e-file and electronic evidence bag; In case content changes; Its digital finger-print also corresponding variation can occur, and therefore, whether the digital finger-print that wraps in before and after saving from damage through contrast e-file and electronic evidence changes; Judge whether e-file changes, thereby accomplish checking this e-file.
In technique scheme, preferably, said terminal also comprises: the register requirement unit is used for initiating register requirement to said system server; And said system server also comprises: registering unit, respond the said register requirement that initiate at said terminal, and generate and unique corresponding said digital certificate of said user and said E-seal.In this technical scheme, the user need register in advance, obtains unique corresponding enrollment status with this user.Simultaneously, the user can also obtain and its unique corresponding digital certificate and E-seal through registration, is used for e-file is signed electronically.Certainly, the user also can obtain digital certificate and E-seal in the associated mechanisms application voluntarily, and it has identical legal effect.
In technique scheme, preferably, comprising: said E-seal is corresponding one by one with seal in kind, binds storage with said digital certificate; And said file verification unit is through verifying said electronic signature to the said digital certificate of binding with said E-seal.In this technical scheme; The electronic contract file that E-seal is added a cover has the identical outward appearance of the paper document of adding a cover with seal in kind, identical validity and similar use-pattern; And the use of E-seal and way to manage also meet the custom and the experience of seal in kind; Seal in kind can only corresponding E-seal; Thereby meet the daily use habit of people on the one hand, also let the user just know that with daily experience total total several chapters need management, avoid occurring the situation that seal out of control is existed everywhere on the other hand.Simultaneously, E-seal and digital certificate bind together, and are kept in the removable medium like USB-key etc., have copy-proof function, avoid E-seal to be replicated and usurp.Specialized agency through the digital certificate of binding on the E-seal is assert through countries such as network and banks carries out identity validation, thereby the corresponding electronic signature of checking is guaranteed idiographic authentic and valid.
In technique scheme, preferably, comprising: said electronic evidence server is the server of third-party server or judicial expertise mechanism; Said electronic evidence bag comprises: the living environment flags parameters and/or the standard time of said e-file, said user's identity information, said e-file; The living environment flags parameters of said e-file comprises system state, hardware parameter, network communication state and/or the internal memory and the cache contents of the main frame that generates said electronic evidence bag; And the said authentication unit of saving from damage; Also, verify the authenticity of said e-file through the identity information of checking the said user in the said electronic evidence bag, the living environment flags parameters and/or the standard time of said e-file.In this technical scheme; Comprise original e-file in the electronic evidence bag; Thereby can be when checking; Through this e-file and electronic evidence bag are regenerated digital finger-print, and compare, learn whether this e-file is authentic and valid with the digital finger-print that is kept at before in the electronic evidence server.The position of electronic evidence bag storage is different with the electronic evidence server; Separate storage helps safety of files like this, and simultaneously, the electronic evidence server should have authority; Thereby can judge the real effectiveness of electronic evidence bag and e-file as template relatively when checking.And other information in the electronic evidence bag; Other legal basis then can be provided for the real effectiveness of this e-file; Such as user profile that comprises and standard time, can be used to check and learn real user and signing time that this time can be identified as the valid period the earliest of this document; And the living environment flags parameters of e-file; Then can be used for the signing environment of e-file is detected, even directly give the terminal of using when signing this e-file at that time for change and detect, the evidence of side is provided for the real effectiveness of e-file.
In technique scheme; Preferably, said terminal also comprises: ciphering unit: said e-file is carried out encipherment protection, the content of said e-file can not be changed; And said electronic evidence bag carried out encipherment protection, the content of said electronic evidence bag can not be changed; And said system server also comprises: the passage ciphering unit: said transmission channel is carried out encipherment protection, make the said transmission channel can not the property monitored and can not destroy.In this technical scheme; Through AES e-file, electronic evidence bag and transmission channel are protected; Thereby the management process that has guaranteed this e-file is in confidential state, can not learnt, revise even destroy by other staff, guarantees the authentic and valid of this e-file.
Through above technical scheme, can easily e-file be signed electronically and manage, and this e-file is saved from damage and verified, guarantee user ' s right, promote user experience.
Description of drawings
Fig. 1 shows the block diagram according to the electronic document management system of the embodiment of the utility model;
Fig. 2 shows the block diagram according to the electronic document management system of the embodiment of the utility model;
Fig. 3 shows the synoptic diagram according to the electron contract of the embodiment of the utility model.
Embodiment
In order more to be expressly understood above-mentioned purpose, the feature and advantage of the utility model, the utility model is further described in detail below in conjunction with accompanying drawing and embodiment.
A lot of details have been set forth in the following description so that make much of the utility model; But; The utility model can also adopt other to be different from other modes described here and implement, and therefore, the utility model is not limited to the restriction of following disclosed specific embodiment.
Fig. 1 shows the block diagram according to the electronic document management system of the embodiment of the utility model.
As shown in Figure 1, comprise according to the electronic document management system 200 of the embodiment of the utility model: system server 202; Terminal 204; And memory storage 206, wherein, system server 202 comprises: first communication unit 208, communicate with terminal 204, and receive e-file to be verified or send the successful e-file of checking through transmission channel; File verification unit 210 is verified the e-file to be verified that first communication unit 208 receives, and will be sent to terminal 204 through first communication unit 208 through the e-file of checking; Save authentication unit 212 from damage; From the electronic evidence bag of user storage, extract the digital finger-print of e-file; And the digital finger-print of e-file and the digital finger-print that is stored in the electronic evidence server compared; And the digital finger-print of the electronic evidence bag of user storage compared with the digital finger-print that is stored in the electronic evidence server, verify the authenticity of e-file; Registering unit 214 responds the said register requirement that initiate at said terminal, generates and unique corresponding said digital certificate of said user and said E-seal; Passage ciphering unit 216 carries out encipherment protection to said transmission channel, makes the said transmission channel can not the property monitored and can not destroy; Terminal 204 comprises: signature unit 218, and utilize user's E-seal that e-file is signed electronically, electronic signature comprises digital certificate and E-seal; Second communication unit 220 communicates with system server 202 and electronic evidence server, sends e-file or the successful e-file of Receipt Validation to be verified through transmission channel; Save unit 222 from damage, generate the electronic evidence bag that is used for e-file, and the electronic evidence bag is stored in the memory storage 206, and the digital finger-print of electronic evidence bag and the digital finger-print of the e-file in the electronic evidence bag are kept in the electronic evidence server; Register requirement unit 224 is used for initiating register requirement to system server 202; Ciphering unit 226 carries out encipherment protection to e-file, the content of e-file can not be changed, and the electronic evidence bag is carried out encipherment protection, and the content of electronic evidence bag can not be changed; And memory storage 206, the storing electronic evidence bag.In this technical scheme; The user has the E-seal of unique correspondence with it; Be used on e-file, signing electronically, and through effective authentication such as utilizing third party's ca authentication mechanism to carry out authentication, thereby guarantee the legitimacy and the validity of user's electronic signature.And for signing the e-file of accomplishing; Through the digital finger-print of e-file and electronic data bag is compared; Thereby verify the authenticity and the legitimacy of this e-file, the digital finger-print here is meant " fingerprint " that e-file and electronic evidence bag is generated forms such as corresponding character string through MD5 or shal scheduling algorithm, and this digital finger-print is relevant with the content of e-file and electronic evidence bag; In case content changes; Its digital finger-print also corresponding variation can occur, and therefore, whether the digital finger-print that wraps in before and after saving from damage through contrast e-file and electronic evidence changes; Judge whether e-file changes, thereby accomplish checking this e-file.
In technique scheme, the user need register in advance, obtains unique corresponding enrollment status with this user.Simultaneously, the user can also obtain and its unique corresponding digital certificate and E-seal through registration, is used for e-file is signed electronically.Certainly, the user also can obtain digital certificate and E-seal in the associated mechanisms application voluntarily, and it has identical legal effect.
In technique scheme, E-seal is corresponding one by one with seal in kind, binds storage with digital certificate; And file verification unit 212 is through verifying electronic signature to the digital certificate of binding with E-seal.In this technical scheme; The electronic contract file that E-seal is added a cover has the identical outward appearance of the paper document of adding a cover with seal in kind, identical validity and similar use-pattern; And the use of E-seal and way to manage also meet the custom and the experience of seal in kind; Seal in kind can only corresponding E-seal; Thereby meet the daily use habit of people on the one hand, also let the user just know that with daily experience total total several chapters need management, avoid occurring the situation that seal out of control is existed everywhere on the other hand.Simultaneously, E-seal and digital certificate bind together, and are kept in the removable medium like USB-key etc., have copy-proof function, avoid E-seal to be replicated and usurp.Specialized agency through the digital certificate of binding on the E-seal is assert through countries such as network and banks carries out identity validation, thereby the corresponding electronic signature of checking is guaranteed idiographic authentic and valid.
In technique scheme, the electronic evidence server is the server of third-party server or judicial expertise mechanism; The electronic evidence bag comprises: the living environment flags parameters and/or the standard time of e-file, user's identity information, e-file; The living environment flags parameters of e-file comprises system state, hardware parameter, network communication state and/or the internal memory and the cache contents of the main frame that generates the electronic evidence bag; And save authentication unit 212 from damage also through the identity information of checking the user in the electronic evidence bag, the living environment flags parameters and/or the standard time of e-file, the authenticity of checking e-file.In this technical scheme; Comprise original e-file in the electronic evidence bag; Thereby can be when checking; Through this e-file and electronic evidence bag are regenerated digital finger-print, and compare, learn whether this e-file is authentic and valid with the digital finger-print that is kept at before in the electronic evidence server.The position of electronic evidence bag storage is different with the electronic evidence server; Separate storage helps safety of files like this, and simultaneously, the electronic evidence server should have authority; Thereby can judge the real effectiveness of electronic evidence bag and e-file as template relatively when checking.And other information in the electronic evidence bag; Other legal basis then can be provided for the real effectiveness of this e-file; Such as user profile that comprises and standard time, can be used to check and learn real user and signing time that this time can be identified as the valid period the earliest of this document; And the living environment flags parameters of e-file; Then can be used for the signing environment of e-file is detected, even directly give the terminal of using when signing this e-file at that time for change and detect, the evidence of side is provided for the real effectiveness of e-file.
In technique scheme; Through AES e-file, electronic evidence bag and transmission channel are protected; Thereby the management process that has guaranteed this e-file is in confidential state, can not learnt, revise even destroy by other staff, guarantees the authentic and valid of this e-file.
In last Fig. 1, memory storage 206 is present in the electronic document management system 200 with system server 202 side by side, is that the user is used for the device of store electrons file or electronic evidence bag, and certainly, memory storage 206 also can be arranged in system server 202; Specifically as shown in Figure 2; In electronic document management system 2000; Memory storage 2006 is arranged in system server 2002; Be that the user is stored in the memory storage 2006 in the system server 2002 with e-file or electronic evidence bag, more convenient, safe stores service be provided by system server 2002.
Fig. 3 shows the synoptic diagram according to the electron contract of the embodiment of the utility model.
As shown in Figure 3, use terminal 300 and terminal 302 to carry out the signing of electronic contract respectively by two users.Suppose by terminal 300 and at first sign this electronic contract; And, being uploaded to the webserver 308 via after router three 04, the fire wall 306, this webserver 308 is that ca authentication server 312 is connected through the network and the server of ca authentication mechanism; Authentication is carried out in electronic signature by on 312 pairs of electronic contracts of having signed of ca authentication server; If authentification failure then withdraws from the signing of this electronic contract, if authentication success; Then the webserver 308 is sent to terminal 302 with this electronic contract via fire wall 306, router three 04, is signed electronically by the opposing party.After the opposing party signs electronically and accomplishes, with electronic contract through with the identical flow process of user before, this electronic signature is verified if after verify successfully, the electronic contract that will finally be accomplished by the webserver 308 is sent to terminal 300 and store at terminal 302.Terminal 300 and terminal 302 are stored in this locality with electronic contract, also can this electronic contract be stored in electronic evidence and save center 316 from damage.
If the user in order to prevent situations such as the opposing party breaks one's promise, hopes can verify the real effectiveness of this electronic contract afterwards, can generate the electronic evidence bag for this electronic contract; Standard time that comprises electronic contract, subscriber identity information in this electronic evidence bag, provided by gps satellite clock 314 etc. is stored in this locality or electronic evidence is saved center 316 from damage with this electronic evidence bag, and before this; Generate the digital finger-print of electronic contract and the digital finger-print of electronic evidence bag; And these digital finger-prints are sent to electronic evidence server 310 store, when then hoping afterwards this electronic contract verified, extract the electronic evidence bag; Generate the digital finger-print of this electronic evidence bag and the digital finger-print of the electronic contract in this electronic evidence bag; And these digital finger-prints are sent to electronic evidence server 310, compare respectively with the digital finger-print of uploading before, if inequality; Prove that then variation has appearred in this electronic contract, loses its real effectiveness; If identical, prove that then this electronic contract is authentic and valid, electronic evidence server 310 can finish a relevant checking result of back generation in checking to be proved.Simultaneously, for other information in the electronic evidence bag, can be through checking these information, thus be the real effectiveness checking of electronic contract, the evidence of some sides is provided, make the checking result have more cogency.
More than be described with reference to the accompanying drawings the technical scheme of the utility model; Consider situation such as the theft that possibly occur in the management of electronic documents process, destruction, and in order to prevent situation such as a side breaks one's promise, the utility model provides a kind of electronic document management system; Can easily e-file be signed electronically and manage; And this e-file saved from damage and verify, guarantee user ' s right, promote user experience.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. an electronic document management system is characterized in that, comprising:
System server;
The terminal; And
Memory storage, wherein,
Said system server comprises:
First communication unit communicates with said terminal, receives e-file to be verified or sends the successful e-file of checking through transmission channel;
The file verification unit is verified the said e-file to be verified that said first communication unit receives, and will be sent to said terminal through said first communication unit through the said e-file of checking;
Save authentication unit from damage; From the electronic evidence bag of said user storage, extract the digital finger-print of said e-file; And the digital finger-print of said e-file and the said digital finger-print that is stored in the electronic evidence server compared; And the digital finger-print of the said electronic evidence bag of said user storage compared with the said digital finger-print that is stored in the said electronic evidence server, verify the authenticity of said e-file;
Said terminal comprises:
Signature unit utilizes user's E-seal that said e-file is signed electronically, and said electronic signature comprises digital certificate and E-seal;
The second communication unit communicates with said system server and said electronic evidence server, sends the said e-file of said e-file to be verified or Receipt Validation success through said transmission channel;
Save the unit from damage; Generation is used for the said electronic evidence bag of said e-file; And said electronic evidence bag is stored in the memory storage, and the digital finger-print of said electronic evidence bag and the digital finger-print of the said e-file in the said electronic evidence bag are kept in the said electronic evidence server; And
Said memory storage is stored said electronic evidence bag.
2. electronic document management system according to claim 1 is characterized in that, comprising: said memory storage is arranged in the outside of said system server or said system server.
3. electronic document management system according to claim 1 is characterized in that, said terminal also comprises:
Ciphering unit: said e-file is carried out encipherment protection, the content of said e-file can not be changed, and
Said electronic evidence bag is carried out encipherment protection, the content of said electronic evidence bag can not be changed.
4. electronic document management system according to claim 1 is characterized in that, said system server also comprises:
Passage ciphering unit: said transmission channel is carried out encipherment protection, make said transmission channel can not monitor and can not destroy.
5. electronic document management system according to claim 1 is characterized in that, comprising: said electronic evidence server is the server of third-party server or judicial expertise mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203456889U CN202472646U (en) | 2011-09-14 | 2011-09-14 | Electronic document management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203456889U CN202472646U (en) | 2011-09-14 | 2011-09-14 | Electronic document management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202472646U true CN202472646U (en) | 2012-10-03 |
Family
ID=46920790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203456889U Expired - Fee Related CN202472646U (en) | 2011-09-14 | 2011-09-14 | Electronic document management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202472646U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103390225A (en) * | 2013-08-05 | 2013-11-13 | 天津勤达科贸有限公司 | Justice credit information preservation system |
| CN103400083A (en) * | 2013-07-08 | 2013-11-20 | 福建伊时代信息科技股份有限公司 | Method, device and system for protecting electronic evidence |
| CN105787626A (en) * | 2014-12-25 | 2016-07-20 | 远光软件股份有限公司 | Contract management method and contract management system |
| CN107545411A (en) * | 2017-08-01 | 2018-01-05 | 丁辰科技（北京）有限公司 | A kind of management method and system for ensuring that fileinfo is true and reliable |
| CN109272300A (en) * | 2018-10-09 | 2019-01-25 | 重庆君子签科技有限公司 | Full chain of evidence contracting method, device, storage medium and server |
| CN109547468A (en) * | 2018-12-19 | 2019-03-29 | 杭州神中科技有限公司 | First battalion's data electronic transmission method and system |
| CN110942407A (en) * | 2019-12-26 | 2020-03-31 | 北京中安百傲科技有限公司 | Electronic evidence collection device and management system |
| US10706135B2 (en) | 2018-02-27 | 2020-07-07 | Ricoh Company, Ltd. | Fingerprint authentication mechanism |
-
2011
- 2011-09-14 CN CN2011203456889U patent/CN202472646U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103400083A (en) * | 2013-07-08 | 2013-11-20 | 福建伊时代信息科技股份有限公司 | Method, device and system for protecting electronic evidence |
| CN103390225A (en) * | 2013-08-05 | 2013-11-13 | 天津勤达科贸有限公司 | Justice credit information preservation system |
| CN105787626A (en) * | 2014-12-25 | 2016-07-20 | 远光软件股份有限公司 | Contract management method and contract management system |
| CN107545411A (en) * | 2017-08-01 | 2018-01-05 | 丁辰科技（北京）有限公司 | A kind of management method and system for ensuring that fileinfo is true and reliable |
| US10706135B2 (en) | 2018-02-27 | 2020-07-07 | Ricoh Company, Ltd. | Fingerprint authentication mechanism |
| CN109272300A (en) * | 2018-10-09 | 2019-01-25 | 重庆君子签科技有限公司 | Full chain of evidence contracting method, device, storage medium and server |
| CN109547468A (en) * | 2018-12-19 | 2019-03-29 | 杭州神中科技有限公司 | First battalion's data electronic transmission method and system |
| CN110942407A (en) * | 2019-12-26 | 2020-03-31 | 北京中安百傲科技有限公司 | Electronic evidence collection device and management system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102332980B (en) | Method and system for managing electronic file | |
| CN202472646U (en) | Electronic document management system | |
| CN107947922B (en) | Digital file management method and system based on block chain technology | |
| CN109508563B (en) | Block chain-based electronic file authenticity guarantee method | |
| CN107819777A (en) | A kind of data based on block chain technology deposit card method and system | |
| US20110231645A1 (en) | System and method to validate and authenticate digital data | |
| CN109639651A (en) | Contract based on living body authentication and block chain technology signs authentication method and its system online | |
| CN109753817A (en) | Medical information secure storage scheme based on block chain | |
| CN107403303A (en) | A kind of signature method for the electronic contract system that card is deposited based on block chain | |
| US20080046743A1 (en) | System and method for automatically signing electronic documents | |
| CN207504911U (en) | A kind of data deposit system based on block chain technology | |
| CN109035024A (en) | Method, system and the storage medium of electronic signature | |
| CN102339370A (en) | Preservation method for electronic file, preservation system and verification system thereof | |
| CN111445238A (en) | Electronic deposit certificate system based on block chain | |
| CN109756341A (en) | Electronic signature method and device | |
| CN113824564A (en) | Online signing method and system based on block chain | |
| US20220020008A1 (en) | Smart Contract-Based Electronic Contract Preservation System | |
| CN111008366A (en) | Copyright authorization method and device based on block chain | |
| CN104580240A (en) | Chat evidence fixing method and device | |
| CN109544089A (en) | The method, apparatus and computer equipment of electronic certificate are established based on image recognition | |
| TW201342298A (en) | Method for the certification of electronic mail delivery | |
| CN106845886A (en) | One kind realizes express delivery system of real name method | |
| CN101741561B (en) | Method and system for authenticating two-way hardware | |
| US20210135877A1 (en) | Methods, systems, and devices for managing digital assets | |
| US20180268380A1 (en) | System and method for electronic deposit and authentication of original electronic information objects |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20150914 |
|
| EXPY | Termination of patent right or utility model |