CN108875407A - For the sensitive information processing method and processing device of financial business, client, data framework - Google Patents
For the sensitive information processing method and processing device of financial business, client, data framework Download PDFInfo
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- CN108875407A CN108875407A CN201810601874.0A CN201810601874A CN108875407A CN 108875407 A CN108875407 A CN 108875407A CN 201810601874 A CN201810601874 A CN 201810601874A CN 108875407 A CN108875407 A CN 108875407A
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- G—PHYSICS
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- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
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- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
- G06Q20/3829—Payment protocols; Details thereof insuring higher security of transaction involving key management
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Abstract
This application discloses a kind of for the sensitive information processing method and processing device of financial business, client, data framework.This method includes the primary block chain the second financial business user being added where the first financial business user；Record the transaction business between the first financial business user and the second financial business user；And obtain the transaction record in the transaction business stored on the primary block chain with sensitive information.Present application addresses lack to sensitive information is effectively treated in financial business the technical issues of.The application realizes the distributed storage to the sensitive information of financial business, and has safety, anti-tamper, retrospective technical effect.
Description
Technical field
This application involves internet financial fields, handle in particular to a kind of sensitive information for financial business
Method and device, client, data framework.
Background technique
In the data information memory system of financial field, sensitive information is usually carried out unified control by the administrative center of authority
System, and there is centralized control permission by data management staff.
Inventors have found that lacking necessary restriction between data management staff in environment nodes, sensitive information passes through pipe
Reason center is uniformly controlled, and submitted sensitive information data can not further be prevented to be tampered.
Lack in the related technology to sensitive information is effectively treated in financial business aiming at the problem that, not yet propose at present effective
Solution.
Summary of the invention
The main purpose of the application is to provide a kind of sensitive information processing method for financial business, to solve to lack
The problem of sensitive information in financial business is effectively treated.
To achieve the goals above, according to the one aspect of the application, a kind of sensitivity letter for financial business is provided
Cease processing method.
Include according to the sensitive information processing method for financial business of the application：Second financial business user is added
Primary block chain where first financial business user；It records between the first financial business user and the second financial business user
Transaction business；And the transaction obtained in the transaction business stored on the primary block chain with sensitive information is remembered
Record.
Further, the transaction business between the first financial business user of record and the second financial business user includes：Note
Record the first sensitive information between the first financial business user and the second financial business user；Judge the first sensitive users letter
Whether default transaction sensitive information is had in breath；And if it is determined that there is the sensitive letter of default transaction in first sensitive user information
Breath, then store the default transaction sensitive information to the user node on primary block chain.
Further, the transaction business between the first financial business user of record and the second financial business user includes：Note
Record the second sensitive information between the first financial business user and the second financial business user；Judge the second sensitive users letter
Whether pre-set user sensitive information is had in breath；And if it is determined that there is pre-set user sensitivity letter in second sensitive user information
Breath, then store the default transaction sensitive information to the user node on primary block chain.
Further, the transaction in the transaction business stored on the primary block chain with sensitive information is obtained
Further include before record：Asymmetric encryption, the asymmetric encryption include：Transaction data, digital signature or login authentication.
Further, further include：First financial business user and the second financial business user are recorded using default client
Between transaction business, include at least in the first financial business user, the second financial business user：Pre-set user is quick
Feel information, is included at least in the transaction business：Default transaction sensitive information.
To achieve the goals above, according to the another aspect of the application, a kind of sensitivity letter for financial business is provided
Cease processing unit.
Include according to the sensitive information processing unit for financial business of the application：Module is added, is used for the second gold medal
Melt the primary block chain that service-user is added where the first financial business user；Logging modle, for recording the first financial business
Transaction business between user and the second financial business user；And module is obtained, for obtaining in the primary block chain
With the transaction record of sensitive information in the transaction business of storage.
Further, the logging modle includes：First recording unit, for recording the first financial business user and second
The first sensitive information between financial business user；First judging unit is in first sensitive user information for judging
It is no to have default transaction sensitive information；And first storage element, for judging there is default friendship in first sensitive user information
When easy sensitive information, then the default transaction sensitive information is stored to the user node on primary block chain.
Further, the logging modle includes：Second recording unit, for recording the first financial business user and second
The second sensitive information between financial business user；Second judgment unit is in second sensitive user information for judging
It is no to have pre-set user sensitive information；And second storage element, for judging there is default use in second sensitive user information
When the sensitive information of family, then the default transaction sensitive information is stored to the user node on primary block chain.
In the embodiment of the present application, using will the second financial business user be added the first financial business user where it is primary
The mode of block chain is reached by the transaction business between the first financial business user of record and the second financial business user
The purpose of the transaction record in the transaction business stored on the primary block chain with sensitive information is obtained, thus real
Show the technical effect of sensitive information distributed storage record while ensure that the safety of transaction data, it is anti-tamper and can chase after
It traces back, and then solves and lack to the technical issues of sensitive information is effectively treated in financial business.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present application, so that the application's is other
Feature, objects and advantages become more apparent upon.The illustrative examples attached drawing and its explanation of the application is for explaining the application, not
Constitute the improper restriction to the application.In the accompanying drawings：
Fig. 1 is the sensitive information processing method schematic diagram for financial business according to the application first embodiment；
Fig. 2 is the sensitive information processing method schematic diagram for financial business according to the application second embodiment；
Fig. 3 is the sensitive information processing method schematic diagram for financial business according to the application 3rd embodiment；
Fig. 4 is the sensitive information processing method schematic diagram for financial business according to the application fourth embodiment；
Fig. 5 is the sensitive information processing unit schematic diagram for financial business according to the application first embodiment；
Fig. 6 is the sensitive information processing unit schematic diagram for financial business according to the application second embodiment；And
Fig. 7 is the data framework schematic diagram according to the embodiment of the present application.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
For the sensitive information processing method of financial business, the first financial business user is added in the second financial business user
The primary block chain at place；Record the transaction business between the first financial business user and the second financial business user；And it obtains
Obtain the transaction record in the transaction business stored on the primary block chain with sensitive information.It is increased income based on ether mill
Frame, with intelligent contract, the form of transaction record carries out persistent storage to user sensitive information, obtains in the primary block
With the transaction record of sensitive information in the transaction business stored on chain.Simultaneously by incorporating Encryption Algorithm, account pipe
Reason, condition monitoring, the functions such as data directory externally provide unified calling interface, are seamlessly connected with financial business platform.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Figure 1, this method includes the following steps, namely S102 to step S106：
The primary block chain where the first financial business user is added in second financial business user by step S102；
Primary block chain typically refers to the publicly-owned chain where the first financial business user originally.
By the publicly-owned chain the second financial business user being added to where the first financial business user, then realize the second gold medal
Melt being added on the node of block chain of service-user.
Step S104 records the transaction business between the first financial business user and the second financial business user；
Due to the first financial business user and the second financial business user cochain, it is possible to every on block chain
A node allowed by way of broadcast each node can record the first financial business user and the second financial business user it
Between transaction business.
Step S106 obtains the transaction in the transaction business stored on the primary block chain with sensitive information
Record.
The transaction record in the transaction business with sensitive information is stored on each node on primary block chain.I.e.
The sensitive information being related in transaction business is subjected to distributed storage by block chain.
It can be seen from the above description that the application realizes following technical effect：
In the embodiment of the present application, using will the second financial business user be added the first financial business user where it is primary
The mode of block chain is reached by the transaction business between the first financial business user of record and the second financial business user
The purpose of the transaction record in the transaction business stored on the primary block chain with sensitive information is obtained, thus real
Show the technical effect of sensitive information distributed storage record while ensure that the safety of transaction data, it is anti-tamper and can chase after
It traces back, and then solves and lack to the technical issues of sensitive information is effectively treated in financial business.
According to the embodiment of the present application, it is preferable that as shown in Fig. 2, the first financial business user of record and the second financial business
Transaction business between user includes：
Step S202 records the first sensitive information between the first financial business user and the second financial business user；
First sensitive information, which is used to be used as, is related to Transaction Information relevant sensitization information.
Pass through the first sensitive information of each nodes records on block chain.
Step S204 judges whether there is default transaction sensitive information in first sensitive user information；
Judge whether there is default transaction sensitive information can be in first sensitive user information, judges whether there is default
Transaction sensitive information：User, which borrows money, to be recorded.
For example, user A involved in Transaction Information borrows money 50,000 yuan to financial institution B.
For another example, it borrows money 50,000 yuan in user A involved in Transaction Information and time limit A to financial institution B, to finance in time limit B
Mechanism B borrows money 20,000 yuan.
Judge whether there is default transaction sensitive information can be in first sensitive user information, judges whether there is default
Transaction sensitive information：User lends record.
For example, user B involved in Transaction Information externally lends 50,000 yuan, lending the time limit is 5 months, and lender is user C.
For example, user B involved in Transaction Information externally lends 50,000 yuan, lender is user C1, is used involved in Transaction Information
Family B externally lends 60,000 yuan, and lender is user C2.
Step S206, if it is determined that have default transaction sensitive information in first sensitive user information, then it will be described pre-
If transaction sensitive information is stored to the user node on primary block chain.
If it is determined that belonging to default transaction sensitive information as described above, user lends record or user borrows money and records,
Then the default transaction sensitive information is stored to the user node on primary block chain.
There is user node different operations to check permission, specifically, different check can be set by workload
Operating right.
According to the embodiment of the present application, it is preferable that as shown in figure 3, the first financial business user of record and the second financial business
Transaction business between user includes：
Step S302 records the second sensitive information between the first financial business user and the second financial business user；
Second sensitive information, which is used to be used as, is related to user's credulity manner of breathing pass sensitive information.
Pass through the second sensitive information of each nodes records on block chain.
Step S304 judges whether there is pre-set user sensitive information in second sensitive user information；
Judge whether there is pre-set user sensitive information can be in second sensitive user information, user's name.
For example, can be the name of user.
It for another example, can be with Business Name.
Judge whether there is pre-set user sensitive information can be in second sensitive user information, user identity.
For example, can be the identification card number of user.
For another example, it can be business standing code.
Judge whether there is pre-set user sensitive information can be in second sensitive user information, user contact details.
For example, the phone etc. that can be user can be used for social sensitive information.
For another example, can be business standing code etc. can be used for the sensitive information of social credibility.
Judge whether there is pre-set user sensitive information can be in second sensitive user information, the gold with user's binding
Melt payment consumption card.
For example, can be the bank card of user.
For another example, it can be enterprise to open an account account.
Step S306, if it is determined that have pre-set user sensitive information in second sensitive user information, then it will be described pre-
If transaction sensitive information is stored to the user node on primary block chain.
If it is determined that meeting in above-mentioned second sensitive user information has pre-set user sensitive information, the default transaction is quick
Sense information is for example, user mobile phone number, address name, user bank card number and user identity card information are stored to primary block chain
On user node on.
By block chain technology, be conducive to safe and reliable data management, reduce user sensitive information distort possibility and
Various risks.In addition, the trustability of business is increased for financial business, since block chain technology can provide day
Right believable distributed data platform, does not need additional third party intermediary or credit information service.
By storing the pre-set user sensitive information to the user node on target block chain, block chain itself
With distributed fault-tolerance, network extremely robust, the abnormality of fault-tolerant 1/3 or so node.Block chain has and can not usurp simultaneously
It is modified：The data Yi Dan submitted of user sensitive information can always exist, can not destroyed or modification.Further, block chain
With Privacy Safeguarding：Key ensure that can be accessed data without permission, but can not parse.
It should be noted that step shown in the flowchart of the accompanying drawings can be in such as a group of computer-executable instructions
It is executed in computer system, although also, logical order is shown in flow charts, and it in some cases, can be with not
The sequence being same as herein executes shown or described step.
According to the embodiment of the present application, additionally provide a kind of for implementing the above-mentioned sensitive information processing side for financial business
The device of method, as shown in figure 4, the device includes：Module 10 is added, for the first financial circles to be added in the second financial business user
Primary block chain where business user；Logging modle 20, for recording the first financial business user and the second financial business user
Between transaction business；And module 30 is obtained, for obtaining in the transaction business stored on the primary block chain
Transaction record with sensitive information.
Primary block chain typically refers to the first financial business user place originally in the addition module 10 of the embodiment of the present application
Publicly-owned chain.
By the publicly-owned chain the second financial business user being added to where the first financial business user, then realize the second gold medal
Melt being added on the node of block chain of service-user.
In the logging modle 20 of the embodiment of the present application due to the first financial business user and the second financial business user
Cochain, it is possible to which each node on block chain allows each node that can record the first financial circles by way of broadcast
The transaction business being engaged between user and the second financial business user.
The transaction business is stored on each node on primary block chain in the acquisition module 30 of the embodiment of the present application
In with sensitive information transaction record.The sensitive information being related in transaction business is subjected to distributed storage by block chain
It deposits.
According to the embodiment of the present application, it is preferable that as shown in figure 5, the logging modle 20 includes：First recording unit 201,
For recording the first sensitive information between the first financial business user and the second financial business user；First judging unit 202,
For judging whether there is default transaction sensitive information in first sensitive user information；And first storage element 203, it is used for
When judging to have default transaction sensitive information in first sensitive user information, then by the default transaction sensitive information store to
On user node on primary block chain.
The first sensitive information is used for quick as Transaction Information correlation is related in first recording unit 201 of the embodiment of the present application
Feel information.
Pass through the first sensitive information of each nodes records on block chain.
Judge whether there is default friendship in first sensitive user information in first judging unit 202 of the embodiment of the present application
Easy sensitive information can be, and judge whether there is default transaction sensitive information：User, which borrows money, to be recorded.
For example, user A involved in Transaction Information borrows money 50,000 yuan to financial institution B.
For another example, it borrows money 50,000 yuan in user A involved in Transaction Information and time limit A to financial institution B, to finance in time limit B
Mechanism B borrows money 20,000 yuan.
Judge whether there is default transaction sensitive information can be in first sensitive user information, judges whether there is default
Transaction sensitive information：User lends record.
For example, user B involved in Transaction Information externally lends 50,000 yuan, lending the time limit is 5 months, and lender is user C.
For example, user B involved in Transaction Information externally lends 50,000 yuan, lender is user C1, is used involved in Transaction Information
Family B externally lends 60,000 yuan, and lender is user C2.
If it is determined that belonging to the sensitive letter of default transaction as described above in first storage element 203 of the embodiment of the present application
Breath, user lends record or user borrows money and records, then stores the default transaction sensitive information to primary block chain
User node.
There is user node different operations to check permission, specifically, different check can be set by workload
Operating right.
According to the embodiment of the present application, it is preferable that as shown in fig. 6, the logging modle 20 includes：Second recording unit 204,
For recording the second sensitive information between the first financial business user and the second financial business user；Second judgment unit 205,
For judging whether there is pre-set user sensitive information in second sensitive user information；And second storage element 206, it is used for
When judging to have pre-set user sensitive information in second sensitive user information, then by the default transaction sensitive information store to
On user node on primary block chain.
The second sensitive information, which is used to be used as, in second recording unit 204 of the embodiment of the present application is related to user's credulity manner of breathing pass
Sensitive information.
Pass through the second sensitive information of each nodes records on block chain.
Judge whether there is default use in second sensitive user information in the second judgment unit 205 of the embodiment of the present application
Family sensitive information can be, user's name.
For example, can be the name of user.
It for another example, can be with Business Name.
Judge whether there is pre-set user sensitive information can be in second sensitive user information, user identity.
For example, can be the identification card number of user.
For another example, it can be business standing code.
Judge whether there is pre-set user sensitive information can be in second sensitive user information, user contact details.
For example, the phone etc. that can be user can be used for social sensitive information.
For another example, can be business standing code etc. can be used for the sensitive information of social credibility.
Judge whether there is pre-set user sensitive information can be in second sensitive user information, the gold with user's binding
Melt payment consumption card.
For example, can be the bank card of user.
For another example, it can be enterprise to open an account account.
In second storage element 206 of the embodiment of the present application if it is determined that meet in above-mentioned second sensitive user information have it is pre-
If user sensitive information, by the default transaction sensitive information for example, user mobile phone number, address name, user bank card number with
And user identity card information is stored to the user node on primary block chain.
According to the embodiment of the present application, a kind of sensitive information processing client for financial business is additionally provided, including：Institute
The sensitive information processing unit stated.The realization principle and beneficial effect of the sensitive information processing unit are for example above-mentioned, herein no longer
It is repeated.
It is the data framework schematic diagram according to the embodiment of the present application as shown in Figure 7, the data framework in the embodiment of the present application,
Including：Application-interface layer, for being docked with business interface and calling the sensitive information in uniform service logical layer；Uniform service is patrolled
Layer is collected, for storage and read of sensitive information；Data storage layer, for providing the storage of block chain data.The application-interface layer
Including：Pre-set user sensitive information obtains interface and default transaction sensitive information obtains interface.
When specifically implementing, the data storage layer in the embodiment of the present application uses ether mill official client Ethereum
Geth incorporates the library Web3J, provides bottom data for whole system and stores infrastructure service.
Include in application-interface layer：User information interface and Transaction Information interface.Application in the embodiment of the present application connects
Mouth layer is the realization of actual service logic, is externally docked by way of standard Web Services with operation system, internally logical
It crosses and actual functional capability is completed to the calling of uniform service logical layer.
Include in uniform service logical layer：Authentication module, can by using address as verifying identity mark,
Verifier finally location.For example, common recognition mechanism related data format.
Include in uniform service logical layer：Credential management module is used for managing digital certificate.Digital certificate is through certificate
The file comprising public-key cryptography owner information and public-key cryptography of authorization center digital signature.
Include in uniform service logical layer：Private key signature module, it is unjust for managing in the key pair being generated for user
The part account private key opened.
Include in uniform service logical layer：Transaction sending module includes initiator address for handling；Recipient
Location；Business processing amount incurred；Business processing expense；
Include in uniform service logical layer：Account management module is used for account executive public key；Account private key；Account money
It produces, digital certificate, account institutional affiliation etc..
Include in uniform service logical layer：Contract administration module is identified for management agreement；Contract version number；Contract
Code；Contract storage etc..
Uniform service logical layer in the embodiment of the present application contains authentication, private key signature, and transaction is sent, contract pipe
The functional modules such as reason realize the basic function of information storage and reading by interacting with block chain node.
Obviously, those skilled in the art should be understood that each module of above-mentioned the application or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
Be performed by computing device in the storage device, perhaps they are fabricated to each integrated circuit modules or by they
In multiple modules or step be fabricated to single integrated circuit module to realize.In this way, the application be not limited to it is any specific
Hardware and software combines.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of sensitive information processing method for financial business, which is characterized in that including：
Second financial business user is added to the primary block chain where the first financial business user；
Record the transaction business between the first financial business user and the second financial business user；And
Obtain the transaction record in the transaction business stored on the primary block chain with sensitive information.
2. sensitive information processing method according to claim 1, which is characterized in that the first financial business user of record and the
Transaction business between two financial business users includes：
Record the first sensitive information between the first financial business user and the second financial business user；
Judge whether there is default transaction sensitive information in first sensitive user information；And
If it is determined that having default transaction sensitive information in first sensitive user information, then by the default transaction sensitive information
On storage to the user node on primary block chain.
3. sensitive information processing method according to claim 1, which is characterized in that the first financial business user of record and the
Transaction business between two financial business users includes：
Record the second sensitive information between the first financial business user and the second financial business user；
Judge whether there is pre-set user sensitive information in second sensitive user information；And
If it is determined that having pre-set user sensitive information in second sensitive user information, then by the default transaction sensitive information
On storage to the user node on primary block chain.
4. sensitive information processing method according to claim 1, which is characterized in that acquisition is stored up on the primary block chain
Further include before transaction record in the transaction business deposited with sensitive information：Asymmetric encryption, the asymmetric encryption
Including：Transaction data, digital signature or login authentication.
5. sensitive information processing method according to claim 1, which is characterized in that further include：Remembered using default client
Record the transaction business between the first financial business user and the second financial business user, it is the first financial business user, described
It is included at least in second financial business user：Pre-set user sensitive information includes at least in the transaction business：Default transaction is quick
Feel information.
6. a kind of sensitive information processing unit for financial business, which is characterized in that
Be added module, for by the second financial business user be added the first financial business user where primary block chain；
Logging modle, for recording the transaction business between the first financial business user and the second financial business user；And
Module is obtained, for obtaining the transaction in the transaction business stored on the primary block chain with sensitive information
Record.
7. sensitive information processing unit according to claim 6, which is characterized in that the logging modle includes：
First recording unit, for recording the first sensitive letter between the first financial business user and the second financial business user
Breath；
First judging unit, for judging whether there is default transaction sensitive information in first sensitive user information；And
First storage element then will be described when for judging to have default transaction sensitive information in first sensitive user information
Default transaction sensitive information is stored to the user node on primary block chain.
8. sensitive information processing unit according to claim 6, which is characterized in that the logging modle includes：
Second recording unit, for recording the second sensitive letter between the first financial business user and the second financial business user
Breath；
Second judgment unit, for judging whether there is pre-set user sensitive information in second sensitive user information；And
Second storage element then will be described when for judging to have pre-set user sensitive information in second sensitive user information
Default transaction sensitive information is stored to the user node on primary block chain.
9. a kind of sensitive information for financial business handles client, which is characterized in that including：As claim 6 to 8 is any
Sensitive information processing unit described in.
10. a kind of data framework, which is characterized in that including：
Application-interface layer, for being docked with business interface and calling the sensitive information in uniform service logical layer；
Uniform service logical layer, for storage and read of sensitive information；
Data storage layer, for providing the storage of block chain data；
Wherein,
The application-interface layer includes：Pre-set user sensitive information obtains interface and default transaction sensitive information obtains interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810601874.0A CN108875407A (en) | 2018-06-12 | 2018-06-12 | For the sensitive information processing method and processing device of financial business, client, data framework |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810601874.0A CN108875407A (en) | 2018-06-12 | 2018-06-12 | For the sensitive information processing method and processing device of financial business, client, data framework |
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| CN201810601874.0A Pending CN108875407A (en) | 2018-06-12 | 2018-06-12 | For the sensitive information processing method and processing device of financial business, client, data framework |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110135175A (en) * | 2019-04-26 | 2019-08-16 | 平安科技（深圳）有限公司 | Information processing, acquisition methods, device, equipment and medium based on block chain |
| CN110598463A (en) * | 2019-04-19 | 2019-12-20 | 腾讯科技（深圳）有限公司 | Block chain-based information processing method and device and computer-readable storage medium |
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| CN113179324B (en) * | 2021-04-29 | 2024-03-26 | 中国人民银行数字货币研究所 | Block chain link point and service processing method executed by block chain link point |
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