CN108023912A - A kind of recognition methods of signature, device, mobile terminal and cloud server - Google Patents
A kind of recognition methods of signature, device, mobile terminal and cloud server Download PDFInfo
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- CN108023912A CN108023912A CN201610944405.XA CN201610944405A CN108023912A CN 108023912 A CN108023912 A CN 108023912A CN 201610944405 A CN201610944405 A CN 201610944405A CN 108023912 A CN108023912 A CN 108023912A
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000005242 forging Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000012015 optical character recognition Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 206010048669 Terminal state Diseases 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013481 data capture Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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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
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/22—Image preprocessing by selection of a specific region containing or referencing a pattern; Locating or processing of specific regions to guide the detection or recognition
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/30—Writer recognition; Reading and verifying signatures
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Computer Hardware Design (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mobile Radio Communication Systems (AREA)
- Information Transfer Between Computers (AREA)
Abstract
The invention discloses a kind of recognition methods of signature, device, mobile terminal and cloud server, wherein, this method includes：Receive signing messages；Signing messages is matched with the default signature got from cloud server；In the case where matching degree reaches preset matching degree, it is actual signature to determine signing messages.The present invention obtains default signature from cloud server, default signature is stored in cloud server and is not easy to be stolen, in the case where user inputs signature, the signature of the input received and default signature are compared, to determine whether signature is actual signature, this method readily recognizes situation about forging a signature, and user experience is higher, solves the problems, such as the as follows of the prior art：It is also more and more by situation about signing to complete transaction on intelligent terminal, once user's signature is counterfeit, certain loss will be caused to user.
Description
Technical field
The present invention relates to field of information processing, more particularly to a kind of recognition methods of signature, device, mobile terminal and cloud
Hold server.
Background technology
The situation that present business community is various to usurp counterfeit various signatures is more, such as credit card signature, Digital Contract Signature etc.,
User or company is caused to bear significant commercial losses.On this basis, widely using due to intelligent terminal, at intelligent end
Also more and more by situation about signing to complete transaction on end, however, science and technology is advanced even so, but still None- identified is intelligent
The signature true and false in terminal, once user's signature is counterfeit, will cause certain loss to user.
The content of the invention
The present invention provides a kind of recognition methods of signature, device, mobile terminal and cloud server, to solve existing skill
The following problem of art：It is also more and more by situation about signing to complete transaction on intelligent terminal, once user's signature is counterfeit,
Certain loss will be caused to user.
In order to solve the above technical problems, on the one hand, the present invention provides a kind of recognition methods of signature, including：Receive signature
Information；The signing messages is matched with the default signature got from cloud server；Reach described pre- in matching degree
If in the case of matching degree, it is actual signature to determine the signing messages.
Optionally, signing messages is received, including：With OCR (optical character identification, Optical Character
Recognition) technology scans and identifies the signing messages.
Optionally, by the signing messages with before being matched from the default signature that cloud server is got, also wrapping
Include：The signing messages is sent to the cloud server, so that the cloud server searches the default signature；Receive
The default signature that the cloud server is found according to the signing messages.
Optionally, the method further includes：Judge whether receive the cloud server feedback in the given time
The default signature；In the case of not receiving the default signature within the scheduled time, institute can not be found by being sent to terminal
State the prompt message of default signature.
Optionally, the method further includes：In the case where the default signature is not present in the cloud server, to end
End sends the prompt message for setting default signature；The default signature set in the terminal is received, and will be described default
Signature is uploaded to the cloud server.
On the other hand, the present invention also provides a kind of identification device of signature, including：Acquisition module, for receiving A.L.S.
Breath；Matching judgment module, for the signing messages to be matched with the default signature got from cloud server；Determine
Module, in the case of reaching the preset matching degree in matching degree, it is actual signature to determine the signing messages.
Optionally, the acquisition module is specifically used for, and scans and identify the signing messages by OCR technique.
Optionally, further include：Sending module, for sending the signing messages to the cloud server, so that institute
State cloud server and search the default signature；Receiving module, for receiving the cloud server according to the signing messages
The default signature found.
Optionally, further include：Judgment module is fed back, for judging whether receive the cloud service in the given time
The default signature of device feedback；First reminding module, for not receiving the feelings of the default signature within the scheduled time
Under condition, the prompt message that can not find the default signature is sent to terminal.
Optionally, further include：Second reminding module, the situation of the default signature is not present in the cloud server
Under, the prompt message that default signature is set is sent to terminal；Setup module, is set described pre- for reception in the terminal
If signature, and the default signature is uploaded to the cloud server.
On the other hand, the present invention also provides a kind of mobile terminal, including：The identification device of above-mentioned signature.
On the other hand, the present invention also provides a kind of cloud server, including：Inlet module, for receiving from mobile whole
The signing messages at end；Searching module, for searching the corresponding original preset signature of the signing messages in presetting database；Go out
Mouth mold block, in the database there are the default signature in the case of, the default signature is sent to the shifting
Dynamic terminal；In the case of the default signature is not present in the database, institute can not be found by being sent to the mobile terminal
State the prompt message of default signature and/or the prompt message of the default signature is set, and returned receiving the mobile terminal
In the case of the default signature returned, the default signature is preserved to the presetting database.
On the other hand, the present invention also provides a kind of identifying system of signature, including：Above-mentioned mobile terminal and above-mentioned cloud
Hold server.
The present invention obtains default signature from cloud server, and default signature is stored in cloud server and is not easy to be stolen,
In the case that user inputs signature, the signing messages received and default signature are compared, whether to determine signing messages
For actual signature, this method readily recognizes situation about forging a signature, and user experience is higher, solves the as follows of the prior art
Problem：It is also more and more by situation about signing to complete transaction on intelligent terminal, once user's signature is counterfeit, it will give and use
Cause certain loss in family.
Brief description of the drawings
Fig. 1 is the flow chart for the recognition methods signed in first embodiment of the invention；
Fig. 2 is the structure diagram for the identification device signed in second embodiment of the invention；
Fig. 3 is a kind of preferred structure schematic diagram for the identification device signed in second embodiment of the invention；
Fig. 4 is another the preferred structure schematic diagram for the identification device signed in second embodiment of the invention；
Fig. 5 is another the preferred structure schematic diagram for the identification device signed in second embodiment of the invention；
Fig. 6 is cloud system Organization Chart in fifth embodiment of the invention；
Fig. 7 is that mobile terminal modules interact schematic diagram in fifth embodiment of the invention；
Fig. 8 is the flow chart for the recognition methods signed in fifth embodiment of the invention.
Embodiment
In order to solve the problems, such as the as follows of the prior art：On intelligent terminal by sign complete transaction situation also increasingly
It is more, once user's signature is counterfeit, certain loss will be caused to user；The present invention provides a kind of identification side of signature
Method, device, mobile terminal and cloud server, below in conjunction with attached drawing and embodiment, carry out further specifically the present invention
It is bright.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, the present invention is not limited.
First embodiment of the invention provides a kind of recognition methods of signature, and the flow of this method is as shown in Figure 1, including step
Rapid S102 to S106：
S102, receives signing messages.When user mobile terminal side paid or other when operation when, if carry out
Signature, then terminal will receive signing messages.
S104, signing messages is matched with the default signature got from cloud server.Getting A.L.S.
After breath, the matching degree of the signing messages and default signature is determined, and judge whether the matching degree reaches preset matching degree.Realizing
During, from security standpoint, default signature is stored in cloud server.
S106, in the case where matching degree reaches preset matching degree, it is actual signature to determine signing messages.The preset matching
The higher of setting that can try one's best according to demand is spent, for example, similarity just determines the genuine signature of signing messages when reaching 95%,
Certainly, which can be set by user oneself, so, will be reduced for some users to dislike trouble default
Matching degree, preset matching degree can be lifted for some users intentionally got compared with high safety guarantee.User is allowed independently to set
The process of preset matching degree, can improve user experience.
The embodiment of the present invention obtains default signature from cloud server, and default signature is stored in cloud server and is not easy to be stolen
Take, in the case where user inputs signature, the signing messages received and default signature are compared, to determine signing messages
Whether it is actual signature, this method readily recognizes situation about forging a signature, and user experience is higher, solves the prior art
Following problem：It is also more and more by situation about signing to complete transaction on intelligent terminal, will once user's signature is counterfeit
Certain loss is caused to user.
For the executive agent of the above process, the present embodiment can be implemented in mobile terminal side, i.e. mobile terminal conduct
Main body judges whether matching degree reaches preset matching degree.Certainly, in some cases, the present embodiment can also be implemented in cloud
Server side is held, i.e., this obtains default signature to cloud server oneself from oneself, and this is preset signature and user's signature information
Matched, i.e., whole process is done by cloud server.
When obtaining user's current signature information, it can be scanned by OCR technique, judge whether signing messages,
In the case of there are signing messages, then identify signing messages.
By signing messages with before being matched from the default signature that cloud server is got, it is also necessary to by A.L.S.
Breath is sent to cloud server, so that cloud server searches its corresponding default signature according to signing messages.In normal condition
Under, cloud server can have default signature and the situation there is no default signature there are two kinds of situations.
In the case that server has default signature beyond the clouds, the default signature that cloud server is found is received.
In the case that server is there is no default signature beyond the clouds, it is possible to the prompt message that default signature is set is sent to user, with
Allow user setting to preset signature, then, receive the default signature of user setting, and default signature is stored in cloud server
In.
When realizing, the mode of default signature is judged whether including a variety of, one of which is to judge in the scheduled time
Inside whether receive the default signature of cloud server feedback；If not receiving default signature in the scheduled time, can confirm that
Non-precondition is signed in cloud server, it is possible to which the prompt message of default signature can not be found by being sent to user.Then, user
The prompt message that default signature is set can be sent to user again, to allow user setting to preset signature.
Second embodiment of the invention provides a kind of identification device of signature, and the structural representation of the device is as shown in Fig. 2, bag
Include：Acquisition module 10, for receiving signing messages；Matching judgment module 20, couples with acquisition module 10, for by signing messages
Matched with the default signature got from cloud server；Determining module 30, couples with matching judgment module 20, for
In the case that matching degree reaches preset matching degree, it is actual signature to determine signing messages.
Wherein, above-mentioned acquisition module 10 is specifically used for signing messages is scanned and identified by OCR technique.
Fig. 3 shows a kind of preferred structure schematic diagram of above device, and the identification device of above-mentioned signature further includes：Send mould
Block 40, couples with acquisition module 10, for sending signing messages to cloud server, so that cloud server searches default label
Name；Receiving module 50, couples with sending module 40 and matching judgment module 20, for receiving cloud server according to signing messages
The default signature found.
Fig. 4 shows another preferred structure schematic diagram of above device, on the basis of Fig. 3, the identification of above-mentioned signature
Device further includes：
Judgment module 60 is fed back, is coupled with sending module 40, for judging whether receive high in the clouds clothes in the given time
The default signature for device feedback of being engaged in；First reminding module 70, couples with feedback judgment module 60, for not receiving in the given time
In the case of default signature, the prompt message that can not find default signature is sent to terminal.
In order to further optimize the experience of user, on the basis of Fig. 4, above device can with as shown in figure 5, including：
Second reminding module 80, couples with the first reminding module 70, in the case that server is there is no default signature beyond the clouds, to user
Send the prompt message that default signature is set；Setup module 90, couples with the second reminding module 80 and receiving module 50, for connecing
The default signature set in terminal is received in, and default signature is uploaded to cloud server.
During one is preferable to carry out, if based on the structure shown in Fig. 3, then the second reminding module 80 and sending module
40 couplings, setup module 90 are just coupled with receiving module 50.Those skilled in the art can design above-mentioned mould according to the actual requirements
Block.
Third embodiment of the invention provides a kind of mobile terminal, the mobile terminal and the high in the clouds clothes for being stored with default signature
Business device interaction, the mobile terminal include the identification device signed in above-mentioned second embodiment.Those skilled in the art are according to above-mentioned
Record, could be aware that how to set the identification device of above-mentioned signature in the terminal, details are not described herein again.
Fourth embodiment of the invention provides a kind of cloud server, which includes：Inlet module, for connecing
Receive the signing messages from mobile terminal；Searching module, couples with inlet module, for searching A.L.S. in presetting database
Cease corresponding original preset signature；Outlet module, couples with searching module, for there is default signature in the database
Under, default signature is sent to mobile terminal；In the case of default signature is not present in the database, nothing is sent to mobile terminal
Method finds the prompt message for presetting signature and/or sets the prompt message of default signature, and receives movement eventually in inlet module
In the case of holding the default signature returned, default signature is preserved to presetting database.
In one alternate embodiment, can be by the cloud in the mobile terminal and fourth embodiment in above-mentioned 3rd embodiment
End server is arranged in the identifying system of a signature, two equipment as interaction in the system.
Fifth embodiment of the invention provides a kind of cloud system framework, the signal of its framework as shown in fig. 6, including：
The hotspot of 101 cell base stations/102：The wireless access such as communication base station/wireless router that i.e. operator sets up are set
It is standby, access wireless network for mobile terminal.
103 cloud databases (i.e. cloud server)：Default signature is stored with, there is user information verification with organizing management work(
By network access and database comparison can be carried out for the mobile terminal with the webserver of data storage function.
104 data sources：Enter the user data of terminal scanning, signing messages etc..It is virtually become in the present embodiment
One independent structure node.
105 mobile terminals (equivalent to the mobile terminal for the identification device that above-mentioned 3rd embodiment includes signature)：Use
The mobile terminal that family is currently held, is responsible for uploading downloading data source, which includes five units, i.e. user mutual mould
Block, scan module, setup module, judgment module and processing module.In the present embodiment, the title of modules is implemented with second
In example although the title of each module has differences, but it realizes identical function.Fig. 7 shows the signal of modules interaction
Figure, separately below illustrates modules in the present embodiment.
User interactive module 402：There is provided between user and device one kind can by UI interfaces come operated and come
Feed back the exhibition method directly perceived of result caused by respective operations.For example to be carried out before user's opening device a series of initial
Change operation, and method come into force after award some prompting messages of user.Such as after opening device, input an acceptable and miss
The percentage range of difference, if between this scope, after contrast is scanned, is just given by, and prompt user's error
How much it is being worth.
Scan module 404：It is responsible for being scanned the information of user's signature, and is uploaded to cloud server.
Setup module 406：It is mainly used for setting the user-defined time, meets condition in inquiry inspection or be unsatisfactory for
Maximum time value during condition.
Judgment module 408：Primary user data is signed in the process verified, and determines whether that the user's is original
Signature is preserved in large database concept beyond the clouds.
Processing module 410：The processing operation carried out to some user's signature data after condition is met is mainly responsible for, and
It is responsible for handling the data after scanning by OCR technique, and result is fed back into user interactive module.
By the present invention, using current high in the clouds big data system, can reach maximum efficiency avoids user or public affairs
Take charge of and bear great commercial monetary losses, the safety in terms of guarantee people card and each life.
Illustrated with reference to execution flows of such as Fig. 8 to the present embodiment, it includes step S801 to S809：
Step S801：Mobile terminal initially enters data capture.
Step S802：Detect whether that there are signing messages by OCR technique.If it is, performing S803, otherwise perform
S809。
Step S803, is attached with cloud server, to be taken signing messages and high in the clouds by big data analysis method
Business device database is verified.
Step S804：Judge whether user sets time-out often, if it is, performing S805, otherwise perform S806.
S805, enables acquiescence duration and verification is compared.
S806, judges whether user's signature information matches with the default signature of cloud server.If it is, perform
S808, otherwise performs S807.
S807, reminds user data to mismatch, and terminates transaction.
S808, reminds user data matching, transaction security.
S809, terminates flow.
During realization, if cloud server Non-precondition is signed, user setting can be prompted to preset signature.
For storing magnanimity signed data information in above-mentioned technology on server beyond the clouds, local data base skill can be used
Art is replaced, but under conditions of current high in the clouds and big data prevalence, it is not recommended that by database come not by the way of local
Preserve.
The embodiment of the present invention utilizes mobile terminal technology combination high in the clouds big data server, and people's information is signed to screen user
True and false problem, to prevent today's society from property loss more and more occurs due to usurping user's signature, fundamentally solves
The signature safety problem of user, which need not carry out transformation and upgrade to the hardware of existing mobile terminal, so non-
Often be conducive to quickly application and promote, while user experience can be greatly improved.
Although being example purpose, the preferred embodiment of the present invention is had been disclosed for, those skilled in the art will recognize
Various improvement, increase and substitution are also possible, and therefore, the scope of the present invention should be not limited to above-described embodiment.
Claims (13)
- A kind of 1. recognition methods of signature, it is characterised in that including：Receive signing messages；The signing messages is matched with the default signature got from cloud server；In the case where matching degree reaches the preset matching degree, it is actual signature to determine the signing messages.
- 2. the recognition methods signed as claimed in claim 1, it is characterised in that signing messages is received, including：The signing messages is scanned and identified with optical character identification OCR technique.
- 3. the recognition methods signed as claimed in claim 1, it is characterised in that by the signing messages with from cloud server Before the default signature got is matched, further include：The signing messages is sent to the cloud server, so that the cloud server searches the default signature；Receive the default signature that the cloud server is found according to the signing messages.
- 4. the recognition methods signed as claimed in claim 3, it is characterised in that the method further includes：Judge whether receive the default signature that the cloud server is fed back in the given time；In the case of not receiving the default signature within the scheduled time, the default signature can not be found by being sent to terminal Prompt message.
- 5. the recognition methods signed as claimed in claim 3, it is characterised in that the method further includes：In the case where the default signature is not present in the cloud server, is sent to terminal and set the prompting of default signature to believe Breath；The default signature set in the terminal is received, and the default signature is uploaded to the cloud server.
- A kind of 6. identification device of signature, it is characterised in that including：Acquisition module, for receiving signing messages；Matching judgment module, for the signing messages to be matched with the default signature got from cloud server；Determining module, in the case of reaching the preset matching degree in matching degree, determines the signing messages for true label Name.
- 7. the identification device signed as claimed in claim 6, it is characterised in that the acquisition module, specifically for optics Character recognition OCR technique scans and identifies the signing messages.
- 8. the identification device signed as claimed in claim 6, it is characterised in that further include：Sending module, for sending the signing messages to the cloud server, so that the cloud server searches institute State default signature；Receiving module, the default signature found for receiving the cloud server according to the signing messages.
- 9. the identification device signed as claimed in claim 8, it is characterised in that further include：Judgment module is fed back, whether receives the default label of the cloud server feedback in the given time for judgement Name；First reminding module, in the case of not receiving the default signature within the scheduled time, nothing is sent to terminal Method finds the prompt message of the default signature.
- 10. the identification device signed as claimed in claim 8, it is characterised in that further include：Second reminding module, in the case where the default signature is not present in the cloud server, sends to terminal and sets in advance If the prompt message of signature；Setup module, institute is uploaded to for receiving the default signature set in the terminal, and by the default signature State cloud server.
- A kind of 11. mobile terminal, it is characterised in that including：The identification dress of signature any one of claim 6 to 10 Put.
- A kind of 12. cloud server, it is characterised in that including：Inlet module, for receiving the signing messages from mobile terminal；Searching module, for searching the corresponding original preset signature of the signing messages in presetting database；Outlet module, in the database there are the default signature in the case of, by it is described it is default signature send extremely The mobile terminal；In the case of the default signature is not present in the database, being sent to the mobile terminal can not Find the prompt message of the default signature and/or the prompt message of the default signature is set, and receive the movement In the case of the default signature that terminal returns, the default signature is preserved to the presetting database.
- A kind of 13. identifying system of signature, it is characterised in that including：The cloud server described in mobile terminal and claim 12 described in claim 11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610944405.XA CN108023912A (en) | 2016-11-02 | 2016-11-02 | A kind of recognition methods of signature, device, mobile terminal and cloud server |
| PCT/CN2017/076695 WO2018082232A1 (en) | 2016-11-02 | 2017-03-15 | Method and device for identifying signature, mobile terminal and cloud server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610944405.XA CN108023912A (en) | 2016-11-02 | 2016-11-02 | A kind of recognition methods of signature, device, mobile terminal and cloud server |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108023912A true CN108023912A (en) | 2018-05-11 |
Family
ID=62070597
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610944405.XA Withdrawn CN108023912A (en) | 2016-11-02 | 2016-11-02 | A kind of recognition methods of signature, device, mobile terminal and cloud server |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108023912A (en) |
| WO (1) | WO2018082232A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109977821A (en) * | 2019-03-14 | 2019-07-05 | 上海古鳌电子科技股份有限公司 | A kind of verifying data signature system |
| CN110245571A (en) * | 2019-05-20 | 2019-09-17 | 深圳壹账通智能科技有限公司 | Contract signature checking method, device, computer equipment and storage medium |
| CN110874579A (en) * | 2019-11-18 | 2020-03-10 | 中国银行股份有限公司 | Business execution method and device based on handwriting verification |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311783B (en) * | 2019-05-30 | 2022-09-23 | 平安科技（深圳）有限公司 | User attribution verification method and device based on group signature and computer equipment |
| CN113079023B (en) * | 2021-03-31 | 2022-04-29 | 深信服科技股份有限公司 | File distribution management method and device and related equipment |
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| WO2018082232A1 (en) | 2018-05-11 |
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