CN109639675A - A kind of data transmission device and system based on block chain - Google Patents
A kind of data transmission device and system based on block chain Download PDFInfo
- Publication number
- CN109639675A CN109639675A CN201811519607.5A CN201811519607A CN109639675A CN 109639675 A CN109639675 A CN 109639675A CN 201811519607 A CN201811519607 A CN 201811519607A CN 109639675 A CN109639675 A CN 109639675A
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- Prior art keywords
- data
- client
- requesting party
- supplier
- public key
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
-
- 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
- H04L63/04—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
- H04L63/0464—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 using hop-by-hop encryption, i.e. wherein an intermediate entity decrypts the information and re-encrypts it before forwarding it
Abstract
The present embodiments relate to technical field of data transmission, specifically disclose a kind of data transmission device and system based on block chain, and data transmission device includes: the first data communication units, for receiving the encrypted data packet of supplier's client transmission；Processing unit obtains the data association message in data packet and the public key of requesting party for data packet to be decrypted according to default manner of decryption；The data content for including by data association message is encrypted after handling according to default processing mode using the public key of requesting party；Second data communication units feed back to requesting party's client for will carry out encrypted data content using the public key of requesting party；Processing unit is also used to, and destroys data packet.The data that requesting party provides supplier can be truly realized the data that supplier provides itself and be decided with undesirable with invisible.Data transmission security is effectively ensured, promotes cooperating with each other between different departments, promotes the work efficiency of department.
Description
Technical field
The present embodiments relate to technical field of data transmission, and in particular to a kind of data transmission device based on block chain
And system.
Background technique
In many cases, it due to the demand of business, needs to cooperate between different departments, realizes data sharing.That is, a certain portion
The work of door executes, and needs the support of the source data or related data of relevant departments.And the partial data of relevant departments belongs to
Sensitive data, should not be directly shared with other people.Also due to " trust problem ", worries that other departments can be to oneself portion between department
The data of door such as modify or reuses at the operation, and once data are outflow, just no longer by the control of oneself, to be unwilling
Shared data.This makes interdepartmental cooperate with each other be difficult to reach, and leverages the work efficiency of department, or even can also
Relevant departments are adversely affected.
So, how could cooperate with each other between different departments reaching, under the premise of the work efficiency for promoting department, also
After can guaranteeing the data outflow that supplier's client provides, still by the control of provider, operative constraint data are used and are protected
Data transmission security is demonstrate,proved, technical problem urgently to be resolved is become.
Summary of the invention
For this purpose, the embodiment of the present invention provides a kind of data transmission device and system based on block chain, it is existing to solve
It is uncontrolled after concern of data outflow due to distrusting mutually between each department in technology, to not support to share, cause indirectly
The low problem of department's work efficiency.
To achieve the goals above, embodiments of the present invention provide the following technical solutions:
In the first aspect of embodiments of the present invention, a kind of data transmission device based on block chain is provided, is wrapped
It includes: the first data communication units, the second data communication units and processing unit；First data communication units and supplier's client
Two-way communication link is established, the second data communication units and requesting party's client establish two-way communication link；
First data communication units, for receiving the encrypted data packet of supplier's client transmission, data packet is to supply
After the side's of answering client transfers related data information according to the request of data that requesting party's client is sent, together with the public key of requesting party
The data packet of composition；
Processing unit, for data packet to be decrypted according to default manner of decryption, the data obtained in data packet are related
The public key of information and requesting party；The data content for including by data association message after handling according to default processing mode, utilizes
The public key of requesting party encrypts；
Second data communication units feed back to request for will carry out encrypted data content using the public key of requesting party
Square client；
Processing unit is also used to, and destroys data packet.
In one embodiment of the invention, when related data information includes source data and algorithm corresponding with source data
When, processing unit is specifically used for, and carries out operation to source data according to the corresponding algorithm of source data, result data is obtained, using asking
The public key for the side of asking encrypts result data；Encrypted result data is fed back into requesting party's client.
In yet another embodiment of the present invention, when related data information includes source data, directly utilize requesting party's
Public key encrypts source data；Encrypted source data is fed back into requesting party's client.
In yet another embodiment of the present invention, the first data communication units are also used to, and are received supplier's client and are sent
Public key corresponding with supplier, so that the corresponding public key of supplier is sent to requesting party's client by transmission unit, for request
The legitimacy of square client validation supplier client.
In yet another embodiment of the present invention, data transmission device is that supplier's client receives requesting party's client
After the request of data of transmission, the sandbox of foundation.
In yet another embodiment of the present invention, processing unit is also used to, and sends the data of encryption in supplier's client
Before packet, arranges cryptographic protocol between supplier's client, provide encryption and decryption mode in cryptographic protocol.
In the second aspect of embodiments of the present invention, a kind of data transmission system based on block chain is provided, is asked
The side's of asking client, supplier's client, and the data transmission device such as any one of claim 1-6；
Requesting party's client, for sending order contract, order contract includes request of data and the public key of requesting party；
Supplier's client, for transferring related data information according to request of data；And by related data information and request
The public key of side constitutes data packet；
After encrypting to data packet, it is sent to data transmission device.
Embodiment according to the present invention, by data transmission device establish supplier's client and requesting party's client it
Between communication connection；The related data information that supplier's client is provided after being handled according to default processing mode, utilizes
The public key of requesting party encrypts, and feeds back to requesting party's client.If if being unwilling to provide convenient for supplier's client
When source data, corresponding calculation process is done in data transmission device and obtains result data, result data is directly fed back into request
Square client.And importantly, requesting party's client for the data that supplier's client provides can only be can be used it is invisible,
The data that supplier's client provides itself can be truly realized and decided with undesirable.Operative constraint data use and guarantee number
According to transmission safety, promotes cooperating with each other between different departments, promote the work efficiency of department.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Fig. 1 is a kind of data transmission device structural schematic diagram based on block chain that one embodiment of the invention provides；
Fig. 2 is a kind of data transmission system structure chart based on block chain that another embodiment of the present invention provides.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
The embodiment of the present invention 1 provides a kind of data transmission device based on block chain, specifically as shown in Figure 1, the data
Transmitting device includes: the first data communication units 101, the second data communication units 102 and processing unit 103；First data are logical
Letter unit 101 and supplier's client establish two-way communication link, and the second data communication units 102 and requesting party's client are established
Two-way communication link.
First data communication units 101, for receiving the encrypted data packet of supplier's client transmission.
Wherein, data packet is after supplier transfers related data information according to the request of data that requesting party sends, with request
The data packet that the public key of side is constituted together.
Then requesting party determines by data information required for the directory search itself on block chain and provides the confession of data
Ying Fang and request path.Order contract is signed, includes data information to be requested, supplier's public key, request in order contract
The signature and data that side is carried out with public key use intelligent contract etc..
Supplier determines that requesting party is legal according to request of data, that is to say with request permissions.It so, then can be from oneself
Data relevant to request of data are transferred in database, and after constituting data packet together with the public key of requesting party, data packet is carried out
Encryption.And be sent in data transmission device, data packet is transmitted convenient for subsequent data transmission device.
Processing unit 103 obtains the data phase in data packet for data packet to be decrypted according to default manner of decryption
Close information and the public key of requesting party；The data content for including by data association message, after being handled according to default processing mode, benefit
It is encrypted with the public key of requesting party.
Second data communication units 102 are fed back to for will carry out encrypted data content using the public key of requesting party
Requesting party's client.
Optionally, after data transmission device receives the request of data that requesting party's client is sent for supplier's client,
The sandbox of foundation.Processing unit 103 is also used to, before the data packet that supplier's client sends encryption, with supplier client
Arrange cryptographic protocol between end, provides encryption and decryption mode in cryptographic protocol.That is, processing unit 103 and supplier client
Can be realized between end and appoint cipher mode and manner of decryption, for example, supplier's client with oneself private key to data packet into
Row encryption, and it is subsequent, and processing unit 103 can be decrypted encrypted data packet with the public key appointed.
Processing unit 103 is all not directly by the intact feedback of legacy data in data packet in all cases
To request of data side.But need that supplier is decrypted by the encrypted packet of client transmissions first, then do again
Subsequent processing.
Its manner of decryption is according to manner of decryption described above, that prior and supplier's client is appointed.After decryption
Obtain the data association message in data packet and the public key of requesting party.When related data information includes source data and and source data
When corresponding algorithm, then illustrate requesting party it is desirable that result data.And the source data that supplier is not intended to oneself is sent to
Requesting party avoids the source data of oneself from not controlled by oneself, is easy to be distorted by people, replicate or situations such as unconfined transmission
Occur.At this point, processing unit 103 can carry out operation to source data according to the corresponding algorithm of source data, result data is obtained；It utilizes
Requesting party's public key encrypts result data.
And the second data communication units 102, then for encrypted result to be fed back to requesting party's client.
In another scenario, when related data information includes source data, processing unit 103 will be specifically used for, directly
Source data is encrypted using the public key of requesting party.
Second data communication units 102, then for encrypted source data to be fed back to requesting party.
It is optional, in order to guarantee that requesting party can determine that the legitimacy of data source, this method can also include: to receive to supply
The public key corresponding with supplier that the side's of answering client is sent, so that the public key of supplier is sent to requesting party's client, for asking
The legitimacy of the side's of asking client validation supplier's client.The public key of supplier is specifically sent to the mode of requesting party's client
It may include: individually to be sent to requesting party's client；Or and by according to predetermined manner, treated that data content leads to together
Cross requesting party public key encrypt after feed back to requesting party's client.
In addition, processing unit 103 is also used to destroy data packet.To then by the second data communication units 102 issue
Data packet is deleted after encrypted data content, or say receive the successful response message of requesting party's feedback reception after delete again
Except data packet is then executed according to the setting of staff, excessive limitation is not done here.The data transmitted by data transmission device
It is to facilitate requesting party to use, but requesting party is invisible to data.Data can be used, but can not be removed, and close after
About fail.The data safety being truly realized in data transmission procedure, realizes that " your number, you do in data use process
It is main；It licenses and does not take away；Data can be with invisible, can be with undesirable " security data exchange.
A kind of data transmission device based on block chain provided in an embodiment of the present invention is established by data transmission device and is supplied
Communication connection between the side's of answering client and requesting party's client；The related data information that supplier's client is provided, according to
It after default processing mode is handled, is encrypted using the public key of requesting party, and feeds back to requesting party's client.If convenient for
If supplier's client is unwilling to provide source data, corresponding calculation process is done in data transmission device and obtains number of results
According to result data is directly fed back to requesting party's client.And importantly, requesting party's client is for supplier's client
The data of offer can only can be used invisible, can be truly realized the data that supplier's client provides itself and be done with undesirable
It is main.Operative constraint data use and guarantee data transmission security, promote cooperating with each other between different departments, promote doing for department
Thing efficiency.
Corresponding with above-described embodiment, the embodiment of the present invention 2 additionally provides a kind of data transmission system based on block chain
System, specifically as shown in Fig. 2, the system includes: requesting party's client 10, supplier's client 20 and embodiment institute as above
The data transmission device 30 based on block chain introduced；
Requesting party's client 10, for sending order contract, order contract includes request of data and the public key of requesting party；
Supplier's client 20, for transferring related data information according to request of data；And it by related data information and asks
The public key for the side of asking constitutes data packet；
After encrypting to data packet, it is sent to data transmission device 30；
Data transmission device 30, for executing function performed by data transmission device described in an embodiment as above.
A kind of data transmission system based on block chain provided in an embodiment of the present invention is established by data transmission device and is supplied
Communication connection between the side's of answering client and requesting party's client；The related data information that supplier is provided, according to default place
After reason mode is handled, encrypted using the public key of requesting party, and feed back to requesting party.If if not convenient for supplier
When being ready to provide source data, corresponding calculation process is done in data transmission device and obtains result data, it is directly that result data is anti-
It is fed to requesting party.And importantly, requesting party for the data that supplier provides can only be can be used it is invisible, can be with can not
It takes, is truly realized the data that supplier provides itself and decides.Operative constraint data use and guarantee data transmission security, promote
Cooperating with each other between different departments promotes the work efficiency of department.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (7)
1. a kind of data transmission device based on block chain, which is characterized in that the data transmission device includes: that the first data are logical
Believe unit, the second data communication units and processing unit；First data communication units and supplier's client are established two-way
Communication connection, second data communication units and requesting party's client establish two-way communication link；
First data communication units, for receiving the encrypted data packet of supplier's client transmission, the data packet
After transferring related data information according to the request of data that requesting party's client is sent for supplier's client, with requesting party's
The data packet that public key is constituted together；
The processing unit obtains in the data packet for the data packet to be decrypted according to default manner of decryption
The public key of data association message and requesting party；The data content for including by the data association message, according to default processing side
After formula processing, encrypted using the public key of the requesting party；
Second data communication units are fed back to for will carry out encrypted data content using the public key of the requesting party
Requesting party's client；
The processing unit is also used to, and destroys the data packet.
2. data transmission device according to claim 1, which is characterized in that when the related data information includes source data
And when corresponding with source data algorithm, the processing unit is specifically used for, according to the corresponding algorithm pair of the source data
The source data carries out operation, obtains result data, is encrypted using the public key of the requesting party to the result data；
Second data communication units, specifically for encrypted result data is fed back to requesting party's client.
3. data transmission device according to claim 1, which is characterized in that when the related data information includes source data
When, the processing unit encrypts the public key directly using the requesting party to the source data；
Second data communication units, specifically for encrypted source data is fed back to requesting party's client.
4. data transmission device according to claim 1-3, which is characterized in that first data communication units
It is also used to, receives the public key corresponding with the supplier that supplier's client is sent, so that the transmission unit is by institute
It states the corresponding public key of supplier and is sent to requesting party's client, for supplier's client described in requesting party's client validation
Legitimacy.
5. data transmission device according to claim 1-3, which is characterized in that the data transmission device is to supply
After the side's of answering client receives the request of data of requesting party's client transmission, the sandbox of foundation.
6. data transmission device according to claim 1-3, which is characterized in that the processing unit is also used to,
Before the data packet that supplier's client sends encryption, arrange cryptographic protocol between supplier's client, it is described to add
Encryption and decryption mode is provided in close agreement.
7. a kind of data transmission system based on block chain, which is characterized in that the system comprises: requesting party's client, supply
Square client and data transmission device as claimed in any one of claims 1 to 6；
Requesting party's client, for sending order contract, the order contract includes request of data and the public key of requesting party；
Supplier's client, for transferring related data information according to the request of data；And by the dependency number it is believed that
Breath and the public key of the requesting party constitute data packet；
After encrypting to the data packet, it is sent to the data transmission device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811519607.5A CN109639675A (en) | 2018-12-12 | 2018-12-12 | A kind of data transmission device and system based on block chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811519607.5A CN109639675A (en) | 2018-12-12 | 2018-12-12 | A kind of data transmission device and system based on block chain |
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| CN109639675A true CN109639675A (en) | 2019-04-16 |
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| CN201811519607.5A Pending CN109639675A (en) | 2018-12-12 | 2018-12-12 | A kind of data transmission device and system based on block chain |
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Cited By (1)
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Application publication date: 20190416 |