CN110247923A - Number cochain method and its equipment are shaken based on block chain - Google Patents
Number cochain method and its equipment are shaken based on block chain Download PDFInfo
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- CN110247923A CN110247923A CN201910547087.7A CN201910547087A CN110247923A CN 110247923 A CN110247923 A CN 110247923A CN 201910547087 A CN201910547087 A CN 201910547087A CN 110247923 A CN110247923 A CN 110247923A
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- China
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- client
- shaking
- block chain
- cochain
- public key
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2458—Special types of queries, e.g. statistical queries, fuzzy queries or distributed queries
- G06F16/2471—Distributed queries
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C15/00—Generating random numbers; Lottery apparatus
- G07C15/006—Generating random numbers; Lottery apparatus electronically
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0442—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
Abstract
This application discloses shake number cochain method and its equipment based on block chain, which comprises block chain node receives the number cochain that shakes that the first client is sent and requests；Triggering verifies intelligent contract, and the intelligent contract of the verification verifies the identity of first client, and after verification passes through, the cochain process of number is shaken described in execution；Receive the inquiry request for shaking number of the second client；Triggering verifies intelligent contract, and the intelligent contract of the verification verifies the identity of second client；Receive the inquiry cochain request that first client is sent, which includes that number is shaken in the encryption of the second client public key；Triggering verifies intelligent contract, and the intelligent contract of the verification verifies the identity of first client, after verification passes through, executes cochain process for number is shaken described in second client public key encryption.The application can will shake number cochain, disclose credible.
Description
Technical field
This application involves block chain technical fields, more particularly to shaking number cochain method and its set based on block chain
It is standby.
Background technique
Currently, block chain technology is the peer-to-peer network based on decentralization, with open source software Cryptography Principles, when ordinal number
It is combined according to common recognition mechanism, to ensure the coherent of each node in distributed data base and continue, so that information is verified immediately, can
Retrospect, but be difficult to tamper with and can not shield, to create a set of privacy, shareable value system efficiently, safe.
The existing number of shaking platform is all the database using centralization, and save commodity shakes number number, and the number of the shaking time is used
The contents such as the mobile phone that the number of shaking at family uses；However, the database of the number of shaking platform, there is data to be tampered, the authenticity of data
Cannot be guaranteed, and the operation platform for the number of shaking modify certain commodity shake number number.Especially to some small number of shaking platforms,
The Information Security and authenticity of commodity all cannot be guaranteed: and commodity or the number of shaking of service content are untrue, it can be to user
It misleads, influences the experience of user.
Therefore, how can not distort based on block chain, the data of the number of shaking platform are stored in block chain by believable mode
On, become urgent problem to be solved.
Above content is only used for the technical solution that auxiliary understands the application, does not represent and recognizes that above content is existing skill
Art.
Summary of the invention
To solve the above-mentioned problems, the application, which is provided, shakes number cochain method and its equipment, the party based on block chain
Method, which can allow, shakes number and is stored on block chain, make on chain to shake number credible.
The application first aspect, which is provided, shakes number cochain method based on block chain, which comprises
Block chain node receives the number cochain that shakes that the first client is sent and requests, described to shake number cochain request packet
Include the first client public key encryption shakes number；
Triggering verifies intelligent contract, and the intelligent contract of the verification verifies the identity of first client, verifies
The cochain process of number is shaken by rear, described in execution；
The block chain node receives the inquiry request for shaking number of the second client；
Triggering verifies intelligent contract, and the intelligent contract of the verification verifies the identity of second client, so as to
After the intelligent contract verification of the verification passes through, the block chain node sends verification and responds to second client；
The block chain node receives the inquiry cochain request that first client is sent, the inquiry cochain request packet
Include the second client public key encryption shakes number；Second client public key is sent to institute for the block chain node
State the first client；
Triggering verifies intelligent contract, and the intelligent contract of the verification verifies the identity of first client, verifies
By rear, cochain process is executed by number is shaken described in second client public key encryption.
In a kind of possible embodiment, second client public key is that the block chain node is sent to described the
One client, specifically:
The block chain node receives the inquiry request that first client is sent, shaken described in inquiry number whether by
It checks and the identity of viewer；
The block chain node sends inquiry response to first client, and the inquiry response includes second visitor
The public key at family end.
In a kind of possible embodiment, the number of shaking is operand of first client in the number of shaking platform
According to, including the number of shaking type, the number of shaking winning numbers, lottery period number and the number of shaking time.
In a kind of possible embodiment, the first client own public key shakes number encryption, tool to described
Body are as follows:
First client is with own public key to the encryption shaken number and carry out preset ratio.
In a kind of possible embodiment, the number of shaking includes relating attribute and dereferenced attribute；Wherein, described
The attribute value for shaking number relating attribute is superimposed automatically.
The application second aspect, which is provided, shakes number cochain equipment based on block chain, which is characterized in that the equipment
For block chain node, the equipment includes receiving unit and processing unit；Wherein,
The receiving unit receives the number cochain that shakes that the first client is sent and requests, and the number cochain that shakes is asked
It asks and shakes number including first client public key encryption；
The processing unit, triggering verifies intelligent contract, described to verify intelligent contract to the identity of first client
It is verified, after verification passes through, the cochain process of number is shaken described in execution；
The receiving unit receives the inquiry request for shaking number of the second client；
The processing unit, triggering verifies intelligent contract, described to verify intelligent contract to the identity of second client
It is verified, after passing through in order to the intelligent contract verification of the verification, the block chain node sends verification and responds to described the
Two clients；
The receiving unit receives the inquiry cochain request that first client is sent, the inquiry cochain request packet
Include the second client public key encryption shakes number；Second client public key is sent to institute for the block chain node
State the first client；
Triggering verifies intelligent contract, and the intelligent contract of the verification verifies the identity of first client, verifies
By rear, cochain process is executed by number is shaken described in second client public key encryption.
In a kind of possible embodiment, the equipment further includes transmission unit；Second client public key is institute
It states block chain node and is sent to first client, specifically:
The receiving unit receives the inquiry request that first client is sent, shaken described in inquiry number whether by
It checks and the identity of viewer；
The transmission unit sends inquiry response to first client, and the inquiry response includes second visitor
The public key at family end.
In a kind of possible embodiment, the number of shaking is operand of first client in the number of shaking platform
According to, including the number of shaking type, the number of shaking winning numbers, lottery period number and the number of shaking time.
In a kind of possible embodiment, the first client own public key shakes number encryption, tool to described
Body are as follows:
First client is with own public key to the encryption shaken number and carry out preset ratio.
In a kind of possible embodiment, the number of shaking includes relating attribute and dereferenced attribute；Wherein, described
The attribute value for shaking number relating attribute is superimposed automatically.
The application can allow the data cochain for the number of shaking so that on chain to shake number credible, it is open and clear；And then it improves and uses
The experience at family.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 shakes number cochain method flow schematic diagram based on block chain to be provided by the embodiments of the present application；
Fig. 2 is provided by the embodiments of the present application and shakes number cochain method flow schematic diagram based on block chain；
Fig. 3 shakes number cochain device structure schematic diagram based on block chain to be provided by the embodiments of the present application.
Specific embodiment
For the clearer general idea for illustrating the application, carry out in an illustrative manner with reference to the accompanying drawings of the specification detailed
It describes in detail bright.
The description and claims of this application and term " first " in above-mentioned attached drawing, " second " etc. are for distinguishing
Similar object, without being used to describe a particular order or precedence order.It should be understood that the sequence used in this way is in appropriate feelings
It can be interchanged under condition, so that the embodiment of the present invention described herein can be other than those of illustrating or describing herein
Sequence implement.
In addition, term " includes " and " having " and their any deformation, it is intended that covering non-exclusive includes example
Such as, the process, method, system, product or equipment for containing a series of steps or units those of are not necessarily limited to be clearly listed
Step or unit, but may include being not clearly listed or intrinsic for these process, methods, product or equipment other
Step or unit.
So-called block chain node and client in the embodiment of the present application, it can be understood as respond extraneous certain trigger item
Part, and the abstract machine that state is converted is done by certain rule, it can be mobile phone, tablet computer, palm PC, individual's PC computer etc.
It can be according to application software and the equipment that can be networked.
As shown in Figure 1, shaking number cochain method based on block chain, the method includes the steps S101-S106.
S101, block chain node receives the number cochain that shakes that the first client is sent and requests, described to shake number cochain
Request shakes number including first client public key encryption.
S102, triggering verify intelligent contract, and the intelligent contract of the verification verifies the identity of first client,
After verification passes through, the cochain process of number is shaken described in execution.
S103, the block chain node receive the inquiry request for shaking number of the second client.
S104, triggering verify intelligent contract, and the intelligent contract of the verification verifies the identity of second client,
After passing through in order to the intelligent contract verification of the verification, the block chain node sends verification and responds to second client.
S105, the block chain node receive the inquiry cochain request that first client is sent, the inquiry cochain
Request shakes number including second client public key encryption；Second client public key is block chain node hair
Give first client.
S106, triggering verify intelligent contract, and the intelligent contract of the verification verifies the identity of first client,
After verification passes through, cochain process is executed by number is shaken described in second client public key encryption.
In one example, second client public key is that the block chain node is sent to first client,
Specifically: the block chain node receives the inquiry request that first client is sent, shaken described in inquiry number whether by
It checks and the identity of viewer；The block chain node sends inquiry response to first client, the inquiry response
Public key including second client.
In one example, the number of shaking is operation data of first client in the number of shaking platform, including is shaken
Number type, the number of shaking winning numbers, lottery period number and the number of shaking time.
In one example, the first client own public key shakes number encryption to described, specifically: described the
One client is with own public key to the encryption shaken number and carry out preset ratio.
In one example, the number of shaking includes relating attribute and dereferenced attribute；Wherein, described to shake number pass
Attribute attribute value is superimposed automatically.
In above-mentioned example, the first client is as the operator for shaking number, and the second client is as shaking looking into for number
Inquiry person；For some the specific number of shaking platform, every user is also possible to shake number either shake the operator of number
Inquiry.
Below by taking Fig. 2 as an example, the cochain process for shaking number on block chain is described in detail, which includes
S201-S215。
S201, the first client are encrypted with the number of shaking operation data of the own public key to itself, the number of the shaking operation data
Including user on the number of shaking platform include the number of shaking type, the number of shaking winning numbers, lottery period number, the number of the shaking time, user IP address
And the data that the user's operations behavior such as account number cipher of user generates.
First client encrypts the number of shaking that itself is generated with own public key, which, which can be, will shake number
Encrypted according to whole fields, the part field for being also possible to shake this number encrypts, as: only to privacy is related to
Content is encrypted；It is also possible to user and does not shake number to this to encrypt.
In addition, it includes being divided into two attribute, relating attribute and dereferenced attribute that this, which shakes number,.Such as: when user's number of shaking
Between, belong to dereferenced attribute, the number of the shaking time of every user may be stored on block chain；Such as: a certain phase number of shaking is shaken
Number amount is exactly relating attribute, includes shaking number amount in the data format for the number of shaking, as long as there is user to participate in the number of shaking, this shakes number
The attribute value of amount can be superimposed automatically.
The number of shaking type includes the application scenarios such as the house-purchase number of shaking, the license plate number of shaking and the affordable housing number of shaking, in these scenes,
As long as user participates in, the number of shaking platform can distribute one number to user in order automatically；That gets the winning number in a bond number can also exist on chain；Entirely shake
Number all exists on chain, facilitates inquiry, does not also allow tampering with.
S202, number cochain is shaken in the transmission of the first client requests to give block chain node.
S203 triggers the verification intelligence contract on block chain, described to verify intelligent contract to the identity of first client
It is verified, after verification passes through, number is shaken to this and executes cochain process.
The verification refer to judge first client whether be the number of the shaking platform user, the only user of the number of the shaking platform
It can just have permission and this is shaken into number progress cochain.
It should be noted that upper chain process is the conventional process of this field, without being described in detail.Such as: in workload
It proves to be packaged data under PoW common recognition mode, verify, the block chain node for getting book keeping operation power can be by the packing block
It is placed on next block of current block, as new block cochain.
S204, block chain node send cochain and respond to first client.
S205, the second client send inquiry request and give block chain node, which is to inquire above-mentioned first client
Shake number in end.
At this point, the corresponding user of the second client can be after seeing that this shakes number, number is shaken to this and is looked into
It askes.The first client and the second client are all the terminal devices for being equipped with decentralization application software in the application, all may be used
It is interacted with directly clicking through row information with the block chain link on block chain.
S206 triggers the verification intelligence contract on block chain, identity of the verification intelligence contract to second client
Verified, verification the second client whether be the number of the shaking platform user.
After verification passes through, process is performed the next step；Verification does not pass through, Flow ends.
S207, block node send verification and respond to the second client.
S208, the first client send inquiry request and give block chain node, and the inquiry request, which inquires this and shakes number, is
It is no to be checked, if obtaining the public key of viewer by checking.
S209, block chain node send inquiry response to the first client, which includes the public affairs of the second client
Key.
S210, the first client send inquiry cochain and request to give block chain node, and inquiry cochain request includes the second visitor
Family end public key encryption shakes number.
S211, triggers the verification intelligence contract on block chain, the verification intelligence contract to the identity of first client into
The number of shaking of second client public key encryption after verification passes through, is executed cochain process by row verification.
S212, block node send inquiry cochain and respond to the first client.
S213, the transmission of the second client shake number inquiry request and give block chain node.
S214, the transmission of block chain node shake number and respond to the second client, and the number of shaking is responded including second
This of client public key encryption shakes number.
S215, the second client second client public key is encrypted with own private key this shake number and be decrypted,
It obtains this and shakes number.
The application can allow the data cochain for the number of shaking, and the cochain process is open and clear, any user of the same number of shaking platform
It can check that this shakes number；It ensure that the authenticity for shaking number.Also, user can be according to oneself hobby, to shaking
Number encrypt or do not encrypt, and improves user experience.
It should be noted that client is directly to carry out the interaction of information, block chain with the node of block chain in the application
Information is stored directly on block chain by node, not the server of centralization, thus allow shake number more disclose it is credible；And
It is not that the server of existing client and centralization interacts.
As shown in figure 3, shaking number cochain equipment based on block chain, the equipment is block chain node, the equipment
Including receiving unit and processing unit.
The receiving unit receives the number cochain that shakes that the first client is sent and requests, and the number cochain that shakes is asked
It asks and shakes number including first client public key encryption；
The processing unit, triggering verifies intelligent contract, described to verify intelligent contract to the identity of first client
It is verified, after verification passes through, the cochain process of number is shaken described in execution；
The receiving unit receives the inquiry request for shaking number of the second client；
The processing unit, triggering verifies intelligent contract, described to verify intelligent contract to the identity of second client
It is verified, after passing through in order to the intelligent contract verification of the verification, the block chain node sends verification and responds to described the
Two clients；
The receiving unit receives the inquiry cochain request that first client is sent, the inquiry cochain request packet
Include the second client public key encryption shakes number；Second client public key is sent to institute for the block chain node
State the first client；
Triggering verifies intelligent contract, and the intelligent contract of the verification verifies the identity of first client, verifies
By rear, cochain process is executed by number is shaken described in second client public key encryption.
In one example, the equipment further includes transmission unit；Second client public key is the block chain link
Point is sent to first client, specifically:
The receiving unit receives the inquiry request that first client is sent, shaken described in inquiry number whether by
It checks and the identity of viewer；
The transmission unit sends inquiry response to first client, and the inquiry response includes second visitor
The public key at family end.
In one example, the number of shaking is operation data of first client in the number of shaking platform, including is shaken
Number type, the number of shaking winning numbers, lottery period number and the number of shaking time.
In one example, the first client own public key shakes number encryption to described, specifically: described the
One client is with own public key to the encryption shaken number and carry out preset ratio.
In one example, the number of shaking includes relating attribute and dereferenced attribute；Wherein, described to shake number pass
Attribute attribute value is superimposed automatically.
The application can allow the data cochain for the number of shaking, and the cochain process is open and clear, any user of the same number of shaking platform
It can check that this shakes number；It ensure that the authenticity for shaking number.Also, user can like according to oneself, to shaking
Number encrypt or do not encrypt, and improves user experience.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method
Part explanation.
Professional should further appreciate that, described in conjunction with the examples disclosed in the embodiments of the present disclosure
Unit and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, hard in order to clearly demonstrate
The interchangeability of part and software generally describes each exemplary composition and step according to function in the above description.
These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.
Professional technician can use different methods to achieve the described function each specific application, but this realization
It is not considered that exceeding scope of the present application.
The above description is only an example of the present application, is not intended to limit this application.For those skilled in the art
For, various changes and changes are possible in this application.All any modifications made within the spirit and principles of the present application are equal
Replacement, improvement etc., should be included within the scope of the claims of this application.
Claims (10)
1. shaking number cochain method based on block chain, which is characterized in that the described method includes:
Block chain node receives the number cochain that shakes that the first client is sent and requests, and the number cochain that shakes is requested including institute
That states the encryption of the first client public key shakes number；
Triggering verifies intelligent contract, and the intelligent contract of the verification verifies the identity of first client, and verification passes through
Afterwards, the cochain process of number is shaken described in execution；
The block chain node receives the inquiry request for shaking number of the second client；
Triggering verifies intelligent contract, and the intelligent contract of the verification verifies the identity of second client, in order to institute
It states after the intelligent contract verification of verification passes through, the block chain node sends verification and responds to second client；
The block chain node receives the inquiry cochain request that first client is sent, and the inquiry cochain request includes institute
That states the encryption of the second client public key shakes number；Second client public key is that the block chain node is sent to described the
One client；
Triggering verifies intelligent contract, and the intelligent contract of the verification verifies the identity of first client, and verification passes through
Afterwards, number will be shaken described in second client public key encryption execute cochain process.
2. the method according to claim 1, wherein second client public key is block chain node hair
First client is given, specifically:
The block chain node receives the inquiry request that first client is sent, and shakes whether number is checked described in inquiry
And the identity of viewer；
The block chain node sends inquiry response to first client, and the inquiry response includes second client
Public key.
3. the method according to claim 1, wherein the number of shaking is the corresponding use of first client
Operation data of the family in the number of shaking platform, including the number of shaking type, the number of shaking winning numbers, lottery period number and the number of shaking time.
4. the method according to claim 1, wherein the first client own public key shakes number to described
According to encryption, specifically:
First client is with own public key to the encryption shaken number and carry out preset ratio.
5. method according to claim 1 or 3, which is characterized in that the number of shaking includes relating attribute and dereferenced
Attribute；Wherein,
The attribute value for shaking number relating attribute is superimposed automatically.
6. shaking number cochain equipment based on block chain, which is characterized in that the equipment is block chain node, the equipment packet
Include receiving unit and processing unit；Wherein,
The receiving unit receives the number cochain that shakes that the first client is sent and requests, described to shake number cochain request packet
Include the first client public key encryption shakes number；
The processing unit, triggering verify intelligent contract, and the intelligence contract that verifies carries out the identity of first client
Verification shakes the cochain process of number after verification passes through described in execution；
The receiving unit receives the inquiry request for shaking number of the second client；
The processing unit, triggering verify intelligent contract, and the intelligence contract that verifies carries out the identity of second client
Verification, after passing through in order to the intelligent contract verification of the verification, the block chain node sends verification and responds to second visitor
Family end；
The receiving unit receives the inquiry cochain request that first client is sent, and the inquiry cochain request includes institute
That states the encryption of the second client public key shakes number；Second client public key is that the block chain node is sent to described the
One client；
Triggering verifies intelligent contract, and the intelligent contract of the verification verifies the identity of first client, and verification passes through
Afterwards, number will be shaken described in second client public key encryption execute cochain process.
7. equipment according to claim 6, which is characterized in that the equipment further includes transmission unit；Second client
End public key is that the block chain node is sent to first client, specifically:
The receiving unit receives the inquiry request that first client is sent, shakes whether number is checked described in inquiry
And the identity of viewer；
The transmission unit sends inquiry response to first client, and the inquiry response includes second client
Public key.
8. equipment according to claim 6, which is characterized in that the number of shaking is that first client is flat in the number of shaking
The operation data of platform, including the number of shaking type, the number of shaking winning numbers, lottery period number and the number of shaking time.
9. equipment according to claim 6, which is characterized in that the first client own public key shakes number to described
According to encryption, specifically:
First client is with own public key to the encryption shaken number and carry out preset ratio.
10. the method according to claim 6 or 8, which is characterized in that the number of shaking includes relating attribute and dereferenced
Attribute；Wherein,
The attribute value for shaking number relating attribute is superimposed automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547087.7A CN110247923A (en) | 2019-06-24 | 2019-06-24 | Number cochain method and its equipment are shaken based on block chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547087.7A CN110247923A (en) | 2019-06-24 | 2019-06-24 | Number cochain method and its equipment are shaken based on block chain |
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| Publication Number | Publication Date |
|---|---|
| CN110247923A true CN110247923A (en) | 2019-09-17 |
Family
ID=67888979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910547087.7A Pending CN110247923A (en) | 2019-06-24 | 2019-06-24 | Number cochain method and its equipment are shaken based on block chain |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111314069A (en) * | 2020-02-13 | 2020-06-19 | 苏州同济区块链研究院有限公司 | Block chain-based shaking system and method, electronic device and storage medium |
| CN111445355A (en) * | 2019-11-26 | 2020-07-24 | 杭州亿房达科技有限公司 | Method for removing centralized house-buying number shaking based on block chain intelligent contract |
| CN111460482A (en) * | 2020-04-15 | 2020-07-28 | 中国银行股份有限公司 | Block chain-based number shaking method and device |
-
2019
- 2019-06-24 CN CN201910547087.7A patent/CN110247923A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111445355A (en) * | 2019-11-26 | 2020-07-24 | 杭州亿房达科技有限公司 | Method for removing centralized house-buying number shaking based on block chain intelligent contract |
| CN111314069A (en) * | 2020-02-13 | 2020-06-19 | 苏州同济区块链研究院有限公司 | Block chain-based shaking system and method, electronic device and storage medium |
| CN111460482A (en) * | 2020-04-15 | 2020-07-28 | 中国银行股份有限公司 | Block chain-based number shaking method and device |
| CN111460482B (en) * | 2020-04-15 | 2024-04-16 | 中国银行股份有限公司 | Block chain-based number shaking method and device |
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