CN109831501A - Information dispensing method and system based on block chain - Google Patents
Information dispensing method and system based on block chain Download PDFInfo
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- CN109831501A CN109831501A CN201910090502.0A CN201910090502A CN109831501A CN 109831501 A CN109831501 A CN 109831501A CN 201910090502 A CN201910090502 A CN 201910090502A CN 109831501 A CN109831501 A CN 109831501A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
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Abstract
The invention discloses information dispensing methods and system based on block chain, are related to field of computer technology.One specific embodiment of this method includes: access end according to the classification and quantity of user generation informative abstract, is broadcast to block chain；Receiving end generates application identification request according to the informative abstract on block chain, and is sent to access end；Access end determines user identifier according to application identification request, to obtain the first cryptographic Hash of user identifier；Respond request parameter is set, and respond request parameter includes the first parameter；Respond request parameter and the first cryptographic Hash are broadcast to block chain, and user identifier is sent to receiving end；Receiving end receives user identifier, obtains the second cryptographic Hash according to the first cryptographic Hash on block chain, the second cryptographic Hash is broadcast to block chain, and handled according to the first parameter.The embodiment reduces access end and distributes invalid information, guarantees the equity of user.
Description
Technical field
The present invention relates to field of computer technology more particularly to a kind of information dispensing methods and system based on block chain.
Background technique
Existing information distribution procedure is: access end obtains user information, and classifies to user, will according to classification results
User information is directly pushed to receiving end.
In realizing process of the present invention, at least there are the following problems in the prior art for inventor's discovery: first, access end meeting
Inactive users information is pushed to receiving end, receiving end is caused to there are problems that managing and waste；Second, receiving end is by user information
It is packaged and sells again, damage user's right.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of information dispensing method and system based on block chain, can reduce
Access end distributes invalid information, reduces the waste of receiving end management and resource, guarantees the equity of user.
To achieve the above object, first aspect according to an embodiment of the present invention provides a kind of letter based on block chain
Cease distribution method.
The information dispensing method based on block chain of the embodiment of the present invention, comprising:
Access end generates informative abstract according to the classification and quantity of user, and the informative abstract is broadcast to block chain；
Receiving end generates application identification request according to the informative abstract on the block chain, and the application is identified
Request is sent to the access end；
The access end determines user identifier according to the application identification request, to obtain the first of the user identifier
Cryptographic Hash；Respond request parameter is set, and the respond request parameter includes the first parameter；By the respond request parameter and described
First cryptographic Hash is broadcast to the block chain, and the user identifier is sent to the receiving end；
The receiving end receives the user identifier, obtains the second Kazakhstan according to first cryptographic Hash on the block chain
Uncommon value, is broadcast to the block chain for second cryptographic Hash, and handled according to first parameter.
In one embodiment, the application identification request carries the classification and quantity of the user；
User identifier is determined according to the application identification request, to obtain the first cryptographic Hash of the user identifier, is wrapped
It includes:
User identifier is determined according to the classification of the user and quantity；
Hash operation is carried out to the user identifier, obtains the first operation result；
It is signed using access end private key to first operation result, obtains the first Hash of the user identifier
Value.
In one embodiment, the second cryptographic Hash is obtained according to first cryptographic Hash on the block chain, comprising:
First cryptographic Hash is obtained from the block chain, and first cryptographic Hash is signed using receiving end private key
Name, obtains the second cryptographic Hash.
In one embodiment, the respond request parameter further includes the second parameter；
After being handled according to first parameter, further includes:
The receiving end generates application information request according to the user identifier, and application information request is sent to
The access end；
The access end requests to determine user information according to the application information, to obtain the third of the user information
Cryptographic Hash；The third cryptographic Hash is broadcast to the block chain, and the user information is sent to the receiving end；
The receiving end receives the user information, obtains the third cryptographic Hash from the block chain, is connect using described
Receiving end private key signs to the third cryptographic Hash, obtains the 4th cryptographic Hash, and the 4th cryptographic Hash is broadcast to the area
Block chain, and handled according to second parameter.
In one embodiment, the application information request carries the user identifier；
It is requested to determine user information according to the application information, to obtain the third cryptographic Hash of the user information, be wrapped
It includes:
User information is determined according to the user identifier；
Hash operation is carried out to the user information, obtains the second operation result；
It is signed using the access end private key to second operation result, the third for obtaining the user information is breathed out
Uncommon value.
In one embodiment, before access end generates informative abstract according to the classification and quantity of user, further includes:
Obtain user information and user identifier；
User is drawn a portrait and classified in the behavioral data that access end generates, obtains the corresponding classification of user；
User information, user identifier and the corresponding classification of user are subjected to matching storage.
To achieve the above object, the second aspect according to an embodiment of the present invention provides a kind of letter based on block chain
Cease dissemination system.
The information distribution system based on block chain of the embodiment of the present invention, including access end and receiving end；
The access end includes:
First generation unit broadcasts the informative abstract for generating informative abstract according to the classification and quantity of user
To block chain；
First processing units, for determining user identifier according to the application identification request, to obtain user's mark
The first cryptographic Hash known；Respond request parameter is set, and the respond request parameter includes the first parameter；The respond request is joined
Several and first cryptographic Hash is broadcast to the block chain, and the user identifier is sent to the receiving end；
The receiving end includes:
Second generation unit, for generating application identification request according to the informative abstract on the block chain, and will
The application identification request is sent to the access end；
The second processing unit is obtained for receiving the user identifier according to first cryptographic Hash on the block chain
To the second cryptographic Hash, second cryptographic Hash is broadcast to the block chain, and handled according to first parameter.
In one embodiment, the application identification request carries the classification and quantity of the user；
The first processing units are also used to:
User identifier is determined according to the classification of the user and quantity；
Hash operation is carried out to the user identifier, obtains the first operation result；
It is signed using access end private key to first operation result, obtains the first Hash of the user identifier
Value.
In one embodiment, described the second processing unit is also used to:
First cryptographic Hash is obtained from the block chain, and first cryptographic Hash is signed using receiving end private key
Name, obtains the second cryptographic Hash.
In one embodiment, the respond request parameter further includes the second parameter；
Second generation unit is also used to after being handled according to first parameter, is marked according to the user
Know and generate application information request, and application information request is sent to the access end；
The first processing units are also used to be requested to determine user information according to the application information, to obtain described
The third cryptographic Hash of user information；The third cryptographic Hash is broadcast to the block chain, and the user information is sent to
The receiving end；
Described the second processing unit is also used to receive the user information, obtains the third Hash from the block chain
Value, signs to the third cryptographic Hash using the receiving end private key, obtains the 4th cryptographic Hash, by the 4th cryptographic Hash
It is broadcast to the block chain, and is handled according to second parameter.
In one embodiment, the application information request carries the user identifier；
The first processing units are also used to:
User information is determined according to the user identifier；
Hash operation is carried out to the user information, obtains the second operation result；
It is signed using the access end private key to second operation result, the third for obtaining the user information is breathed out
Uncommon value.
In one embodiment, the access end further includes pretreatment unit, is used for:
Before generating informative abstract according to the classification of user and quantity, user information and user identifier are obtained；
User is drawn a portrait and classified in the behavioral data that access end generates, obtains the corresponding classification of user；
User information, user identifier and the corresponding classification of user are subjected to matching storage.
To achieve the above object, in terms of third according to an embodiment of the present invention, a kind of electronic equipment is provided.
The a kind of electronic equipment of the embodiment of the present invention, comprising: one or more processors；Storage device, for storing one
A or multiple programs, when one or more of programs are executed by one or more of processors, so that one or more
A processor realizes following method provided in an embodiment of the present invention: informative abstract is generated according to the classification of user and quantity, by institute
It states informative abstract and is broadcast to block chain；User identifier is determined according to the application identification request, to obtain the user identifier
The first cryptographic Hash；Respond request parameter is set, and the respond request parameter includes the first parameter；By the respond request parameter
It is broadcast to the block chain with first cryptographic Hash, and the user identifier is sent to the receiving end.
To achieve the above object, the 4th aspect according to an embodiment of the present invention, provides a kind of electronic equipment.
The a kind of electronic equipment of the embodiment of the present invention, comprising: one or more processors；Storage device, for storing one
A or multiple programs, when one or more of programs are executed by one or more of processors, so that one or more
A processor realizes following method provided in an embodiment of the present invention: generating application according to the informative abstract on the block chain
Identification request, and the application identification request is sent to the access end；The user identifier is received, according to the block chain
On first cryptographic Hash obtain the second cryptographic Hash, second cryptographic Hash is broadcast to the block chain, and according to described
First parameter is handled.
To achieve the above object, the 5th aspect according to an embodiment of the present invention, provides a kind of computer-readable medium.
A kind of computer-readable medium of the embodiment of the present invention, is stored thereon with computer program, and described program is processed
Device realizes following method provided in an embodiment of the present invention when executing: informative abstract is generated according to the classification of user and quantity, by institute
It states informative abstract and is broadcast to block chain；User identifier is determined according to the application identification request, to obtain the user identifier
The first cryptographic Hash；Respond request parameter is set, and the respond request parameter includes the first parameter；By the respond request parameter
It is broadcast to the block chain with first cryptographic Hash, and the user identifier is sent to the receiving end.
To achieve the above object, the 6th aspect according to an embodiment of the present invention, provides a kind of computer-readable medium.
A kind of computer-readable medium of the embodiment of the present invention, is stored thereon with computer program, and described program is processed
Device realizes following method provided in an embodiment of the present invention when executing: generating application according to the informative abstract on the block chain
Identification request, and the application identification request is sent to the access end；The user identifier is received, according to the block chain
On first cryptographic Hash obtain the second cryptographic Hash, second cryptographic Hash is broadcast to the block chain, and according to described
First parameter is handled.
One embodiment in foregoing invention have the following advantages that or the utility model has the advantages that access end according to the classification sum number of user
Amount generates informative abstract, is broadcast to block chain；Receiving end generates application identification request according to the classification and quantity of user.Thus,
When receiving end generates request, access end just sends user identifier, and when receiving end does not generate request, access end does not send user's mark
Know, rather than directly pushed by access end, to reduce access end distribution invalid information, reduces the management and money of receiving end
The waste in source.Access end determines user identifier, obtains the first cryptographic Hash according to application identification request, and the first cryptographic Hash is broadcasted
To block chain, user identifier is sent to receiving end.Receiving end obtains the second cryptographic Hash according to the first cryptographic Hash, and is broadcast to area
Block chain.In this way, then reducing receiving end leakage user identifier using the record of block chain and not modifiable characteristic, ensure that
The interests of user.When access end dispatch user identifies, there is the record of the first parameter, reducing receiving end and exaggerating own strength causes
Access end benefit damage problem.
Further effect possessed by above-mentioned non-usual optional way adds hereinafter in conjunction with specific embodiment
With explanation.
Detailed description of the invention
Attached drawing for a better understanding of the present invention, does not constitute an undue limitation on the present invention.Wherein:
Fig. 1 is the schematic diagram of the main flow of the information dispensing method according to an embodiment of the invention based on block chain；
Fig. 2 is the signal of the Signalling exchange of the information dispensing method according to another embodiment of the present invention based on block chain
Figure；
Fig. 3 is the structural relation signal in the information dispensing method according to another embodiment of the present invention based on block chain
Figure；
Fig. 4 is the application scenarios signal of the information dispensing method according to another embodiment of the present invention based on block chain
Figure；
Fig. 5 is the schematic diagram of the main component of the information distribution system according to an embodiment of the present invention based on block chain；
Fig. 6 is that the embodiment of the present invention can be applied to exemplary architecture figure therein；
Fig. 7 is adapted for the structural representation of the computer system for the terminal device or server of realizing the embodiment of the present invention
Figure.
Specific embodiment
Below in conjunction with attached drawing, an exemplary embodiment of the present invention will be described, including the various of the embodiment of the present invention
Details should think them only exemplary to help understanding.Therefore, those of ordinary skill in the art should recognize
It arrives, it can be with various changes and modifications are made to the embodiments described herein, without departing from scope and spirit of the present invention.Together
Sample, for clarity and conciseness, descriptions of well-known functions and structures are omitted from the following description.
It should be pointed out that in the absence of conflict, the feature in embodiment and embodiment in the present invention can be with
It is combined with each other.
With Internet era, the especially arrival in mobile interchange epoch, people are higher and higher to the dependency degree of network, together
When, with deepening continuously for the division of labor in society, information distribution is used as a special division of labor in society field, also carries on a shoulder pole in modern society
Shoulder increasingly important role.
The essence of information distribution is exactly that the user information that will acquire of access end is distributed to receiving end, and is responded by receiving end
The demand of user.Wherein, the demand of user can be the transactions demand of consumer, be also possible to the transactions demand of sellers.Letter
The demand that breath distribution can be avoided a large number of users is handled the problem for causing access end processing speed slow by access end, together
Sample has also expanded the scope of business of receiving end, and the user experience is improved.
Existing information distribution procedure is illustrated with a specific example below:
Access end obtains user information through a variety of ways, for example, access end is obtained by the development of online e-commerce
The information of sellers and the access ends such as the information of consumer or employer's organization are registered by the enterprise that management registers on the books
The company information of enterprise on the regular payroll.Access end can be electric business platform.In general, there is competition between the platform of same type to close
System, the user information that each platform obtains have certain platform preference, but the user information that each platform obtains on the whole
Middle major part user information is identical.
Access end draws a portrait and classifies to user in the behavioral data that access end generates according to user, will be different classes of
The user information of user is directly pushed to different receiving ends.
Receiving end receives user information, is matched with mechanism itself existing product, the demand to user responds.
In above-mentioned existing information distribution procedure, there are the following problems:
Firstly, access end in order to get a profit, can push inactive users information to receiving end, for example, repeatedly pushing same subscriber
Information, in this way, then receiving end can have management and the waste of resource in recognition user information.
Secondly, user information can be packaged again sale by receiving end, in this way, then after user information is distributed to receiving end
User information is leaked in the case where user does not agree to, compromises user's right.
Again, receiving end often exaggerates the friendship of receiving end to strive for more initiatives in the cooperation with access end
Easy scale and trading volume, cause access end benefit damage.
Of the existing technology in order to solve the problems, such as, one embodiment of the invention provides a kind of information based on block chain point
Forwarding method, as shown in Figure 1, this method comprises:
Step S101, access end generates informative abstract according to the classification and quantity of user, and the informative abstract is broadcast to
Block chain.
In this step, when it is implemented, quantity can be obtained by the quantity of the classification of counting user, and, information is plucked
The whole network broadcast is carried out in block chain with plaintext version.
In addition, classification can be children's classification, young and middle-aged classification and old classification；Classification can also be high consumption classification,
Medium consumption classification and low consumption classification；Classification can also be high credit category, medium credit category and low credit category；Classification
It can also be high-quality classification, medium quality classification and low quality classification.It should be noted that being above only to list several classes
Other example, above-mentioned example are not intended to limit the present invention, and classification can be arranged in the embodiment of the present invention according to specific needs.
Step S102, receiving end generates application identification request according to the informative abstract on the block chain, and by institute
It states application identification request and is sent to the access end.
In this step, when it is implemented, receiving end obtains informative abstract from block chain, and informative abstract carries user's
Classification and quantity generate application identification request according to the classification of its user carried and quantity, and will by the agreement of block chain
Application identification request is sent to access end.
Step S103, the described access end determines user identifier according to the application identification request, to obtain the user
First cryptographic Hash of mark；Respond request parameter is set, and the respond request parameter includes the first parameter；By the respond request
Parameter and first cryptographic Hash are broadcast to the block chain, and the user identifier is sent to the receiving end.
In this step, when it is implemented, access end can be in advance by user information, user identifier and the corresponding class of user
Matching storage is not carried out.And apply for that identification request carries the classification and quantity of user, in this way, then access end can be according to user's
Classification and quantity determine user identifier.Hash operation is carried out to user identifier, the first operation result is obtained, uses access end private key
It signs to the first operation result, obtains the first cryptographic Hash.It should be noted that user identifier is not the agreement by block chain
It is sent to receiving end, but is sent to receiving end by other approach, other approach can be mailbox.
Step S104, the described receiving end receives the user identifier, according to first cryptographic Hash on the block chain
The second cryptographic Hash is obtained, second cryptographic Hash is broadcast to the block chain, and handled according to first parameter.
In this step, when it is implemented, receiving end obtains the first cryptographic Hash from block chain, and receiving end private key pair is used
First cryptographic Hash is signed, and the second cryptographic Hash is obtained.In addition, the first parameter can be the fuel value (abbreviation GAS) of block chain,
It may is that the GAS that block chain is paid to the miner of block chain according to the detailed process that the first parameter is handled.It should be noted
It is, it can be complete in verifying and one first according to the integrality and consistency of the first cryptographic Hash and user identifier verifying user identifier
The GAS of block chain is paid after cause again.
In embodiments of the present invention, access end generates informative abstract according to the classification and quantity of user, is broadcast to block chain；
Receiving end generates application identification request according to the classification and quantity of user.Thus, when receiving end generates request, access end is just sent
User identifier, when receiving end does not generate request, access end does not send user identifier, rather than is directly pushed by access end, thus
Reduce access end distribution invalid information, reduces the management of receiving end and the waste of resource.Access end is asked according to application mark
It asks, determines user identifier, obtain the first cryptographic Hash, the first cryptographic Hash is broadcast to block chain, user identifier is sent to reception
End.Receiving end obtains the second cryptographic Hash according to the first cryptographic Hash, and is broadcast to block chain.In this way, then utilizing the record of block chain
Not modifiable characteristic reduces receiving end leakage user identifier, ensure that the interests of user.Access end dispatch user mark
When, there is the record of the first parameter, reduces receiving end and exaggerate access end benefit damage problem caused by own strength.
User, access end and receiving end are configured to alliance's chain by block chain technology by the embodiment of the present invention.User
Not only it interacts with access end, after the distribution by access end, can also be interacted with receiving end, then by receiving end
Respond the demand of user.
Of the existing technology in order to solve the problems, such as, another embodiment of the present invention provides a kind of information based on block chain
Distribution method, as shown in Figure 2, Figure 3 and Figure 4, this method comprises:
Step S201, access end obtains user information and user identifier；The behavioral data that user is generated in access end into
Row portrait and classification, obtain the corresponding classification of user；User information, user identifier and the corresponding classification of user are carried out matching to deposit
Storage.
In this step, when it is implemented, user information is sent to access end by user terminal by user.Thus, distribution
End receives user information.By behavioral data that user generates in access end, (behavioral data can be browsing behavior, reads access end
Behavior, trading activity or other behavioral datas), being input to algorithm or model, (algorithm can be machine learning algorithm, and model can
To be user's portrait model), the portrait of user is obtained, portrait depicts the behavioural habits or production and operation state of user.
Access end gives a mark to the portrait of user according to the Rating Model of access end, obtains the corresponding class of user according to marking result
Not, the user information of the user is partitioned into the identical classification group of classification corresponding to the user, and right in category group
User information is ranked up, and distributes to the unique User ID of the user, and User ID is user identifier.
It should be noted that the purpose that access end draws a portrait to user and classifies is: access end being facilitated to provide more for user
Effective service, and more accurately realize information distribution.
It should be noted that the user of access end is generally unwilling to carry out user in the initial data that access end is formed
Distribution, but similar subscriber blacklist etc. can be distributed.For example, bad user list can be distributed to receiving end by access end.
In addition, user information may include: user contact details, user's gender and address name etc..
Step S202, access end generates informative abstract according to the classification and quantity of user, and the informative abstract is broadcast to
Block chain.
In this step, when it is implemented, quantity is obtained by the quantity of the user of the classification of counting user.In addition,
Informative abstract is subjected to the whole network broadcast in block chain with plaintext version.Furthermore access end be by the classification and quantity of user, and point
The IP address of originator is assembled into informative abstract, thus, informative abstract carries the classification and quantity of user.
Step S203, receiving end generates application identification request according to the informative abstract on the block chain, and by institute
It states application identification request and is sent to the access end, the application identification request carries the classification and quantity of the user.
In this step, when it is implemented, receiving end obtains informative abstract from block chain, the user of receiving end is by connecing
Receiving end browses informative abstract, and informative abstract carries the classification and quantity of user, and the user of receiving end is according to the classification of user
Determine whether to operate receiving end with quantity, to generate application identification request.The user's that receiving end is carried by informative abstract
Classification and quantity generate application identification request.Receiving end will apply for that identification request is sent to access end by the agreement of block chain.
Step S204, access end determines user identifier according to the classification and quantity of the user, to the user identifier into
Row Hash operation obtains the first operation result；It is signed, is obtained described to first operation result using access end private key
First cryptographic Hash of user identifier；Respond request parameter is set, and the respond request parameter includes the first parameter and the second parameter；
The respond request parameter and first cryptographic Hash are broadcast to the block chain, and the user identifier is sent to described
Receiving end.
In this step, when it is implemented, since access end is by user information, user identifier and the corresponding classification of user
Matching storage is carried out, thus, access end can determine user identifier from access end according to the classification and quantity of user.It should be understood that
It is that access end has exclusive private key, i.e., different access ends, access end private key difference.In this way, then the first cryptographic Hash is that have label
Name access end it is markup.In addition, the Hash operation of access end can pass through the application (DAPP) of the decentralization of block chain
It realizes.
Second parameter can be token (abbreviation TOKEN).It should be noted that informative abstract is broadcast to block by access end
Chain, receiving end will apply for that identification request is sent to access end, receiving end and application information request is sent to access end etc., be required to
It pays GAS and needs the miner to block chain that is, access end or receiving end use block chain to the miner of block chain
Pay GAS.
Access end account information is also sent to receiving end by access end, thus make receiving end payment TOKEN to access end,
The account information of access end may include: account name, bank of deposit and duty paragraph of access end etc..In addition, access end first marks user
Know and access end account information is packaged into the first data packet, the first data packet is sent to receiving end by other approach, other
Approach can be mailbox, and the first data packet is sent to receiving end not by the agreement of block chain.Why in this way, being because of area
The bearing capacity of block chain is limited, and the data volume of the first data packet is more.
Access end signs to the first operation result using access end private key, obtains the first cryptographic Hash, and the first operation
It is obtained the result is that carrying out Hash operation by user identifier, the first cryptographic Hash is broadcast to block chain, thus, utilize the note of block chain
Record and not modifiable characteristic reduce receiving end leakage user identifier, have further ensured the equity of user.
Step S205, receiving end receives the user identifier, and first cryptographic Hash is obtained from the block chain, uses
Receiving end private key signs to first cryptographic Hash, obtains the second cryptographic Hash；Second cryptographic Hash is broadcast to described
Block chain, and handled according to first parameter.
In this step, when it is implemented, receiving end receive the first data packet, obtain user identifier, to user identifier into
Row Hash operation, if the cryptographic Hash that Hash operation obtains is identical as the first cryptographic Hash, confirm received user identifier be it is complete,
And it is consistent, GAS is then paid to the miner of block chain.It should be noted that the detailed process handled according to the first parameter is i.e.
It is payment GAS to the miner of block chain.
In addition, receiving end needs to prop up after the second cryptographic Hash is broadcast to block chain if the first parameter is a GAS
A GAS is paid to the miner of block chain.
It should be noted that after the second cryptographic Hash is broadcast to block chain by receiving end, miner's (mine in block chain of block chain
For work for generating block, miner can be receiving end, be also possible to user terminal etc.) the second cryptographic Hash can be viewed, and by altogether
Know algorithm and confirms whether the second cryptographic Hash is true；If miner's confirmation is the fact, block is generated according to the second cryptographic Hash.When
So, miner not often views second cryptographic Hash and generates block, but the quantity in the second cryptographic Hash to be viewed reaches
To block chain be arranged quantitative value when just generate block, different types of block chain its setting quantitative value difference.Applied to this
The common recognition algorithm of inventive embodiments can be practical Byzantine failure tolerance algorithm (PBFT), be also possible to the calculation of modified Byzantine failure tolerance
Method (DBFT), but cannot be that work quantity algorithm (POW) or share prove algorithm (POS).In addition, the first cryptographic Hash, third are breathed out
It is identical that uncommon value and the 4th cryptographic Hash etc. are broadcast to the situation after the situation after block chain is broadcast to block chain with the second cryptographic Hash,
This is repeated no more.Certainly, the accounting nodes of block chain are generated by common recognition algorithm, and accounting procedure can be rewarded.
It should be understood that receiving end has exclusive private key, i.e., different receiving ends, receiving end private key difference.In this way, then
Two cryptographic Hash are the markup of the access end of the markup of the receiving end with signature and signature.
Receiving end signs to the first cryptographic Hash using receiving end private key, and is broadcast to block chain, thus, utilize block
The record of chain and not modifiable characteristic reduce receiving end leakage user identifier, further ensure the equity of user.
Step S206, after being handled according to first parameter, receiving end generates Shen according to the user identifier
Please information request, and application information request is sent to the access end, the application information request carries the user
Mark.
In this step, when it is implemented, the user of receiving end can after being handled according to first parameter
To browse user identifier by receiving end；It feels the need to obtain user information after browsing user identifier, thus to user's
Demand is responded, or when user is included in service range, receiving end can be operated, to make receiving end according to user identifier
Generate application information request.In addition, it may include: receiving end to reception that receiving end, which generates application information request according to user identifier,
The end address ip and user identifier are assembled, and application information request is obtained.In this way, then access end can use the receiving end address ip
User information is sent to receiving end.Application information request is sent to access end by the agreement of block chain by receiving end.
Step S207, access end determines user information according to the user identifier；Hash fortune is carried out to the user information
It calculates, obtains the second operation result；It is signed using the access end private key to second operation result, obtains the user
The third cryptographic Hash of information；The third cryptographic Hash is broadcast to the block chain, and the user information is sent to described
Receiving end.
In this step, when it is implemented, access end is to carry out user information, user identifier and the corresponding classification of user
Matching storage, thus, access end can determine user information from access end according to user identifier.It should be understood that access end makes
It is signed with access end private key to the second operation result, thus, make the source of information that there is trackability, prevents leakage user
Privacy.
User information is first packaged into the second data packet by access end, and the second data packet is sent to reception by other approach
End, other approach can be mailbox, and the second data packet is sent to receiving end not by the agreement of block chain.Why in this way,
It is because the bearing capacity of block chain is limited, and the data volume of the second data packet is more.
Access end signs to the second operation result using access end private key, obtains third cryptographic Hash, and the second operation
It is obtained the result is that carrying out Hash operation by user information, third cryptographic Hash is broadcast to block chain, thus, utilize the note of block chain
Record and not modifiable characteristic reduce receiving end leakage user information, further ensure the equity of user.
Step S208, receiving end receives the user information, obtains the third cryptographic Hash from the block chain, uses institute
It states receiving end private key to sign to the third cryptographic Hash, obtains the 4th cryptographic Hash；4th cryptographic Hash is broadcast to institute
Block chain is stated, and is handled according to second parameter.
In this step, when it is implemented, receiving end receive the second data packet, obtain user information, to user information into
Row Hash operation, if the cryptographic Hash that Hash operation obtains is identical as third cryptographic Hash, confirm received user information be it is complete,
And it is consistent, TOKEN is then paid to access end.It should be noted that being branch according to the detailed process that the second parameter is handled
TOKEN is paid to access end.It should be understood that the comparison of the cryptographic Hash of receiving end and the payment of TOKEN can pass through DAPP reality
It is existing.
4th cryptographic Hash is to have passed through access end and receiving end signature respectively, and be broadcast to block chain, utilizes block chain
Record and not modifiable characteristic, make the generation of user information and use be provided with record, reduce receiving end leakage user
Information has further ensured the equity of user.Also, when access end dispatch user information, there is the record of the second parameter, further
Reduce receiving end and exaggerates access end benefit damage problem caused by own strength.
It should be noted that the second cryptographic Hash and the 4th cryptographic Hash can store on same block, also can store not
With on block.In addition, access end is the intermediary of information, user information is only distributed to receiving end, thus, user is believed
The demand for ceasing the user being directed toward, is to be handled by receiving end, rather than handled by access end.Furthermore receiving end is from distribution
After end obtains user information, secondary clearing, and and receiving end again can also be carried out to user according to the preference and strategy of receiving end
Product matched, meet the needs of users.Also, after user information is distributed to receiving end by access end, user terminal with connect
Receiving end establishes direct connection, for operation layer, does not need access end and provides information again, but since user is in the row of access end
To continue, thus, user is changing in the behavioral data that access end generates, and the classification of user is changing, so, access end can be with
According to the classification of updated user, continue dispatch user information, but need that the classification of user is marked, is convenient for receiving end
Identification is the classification variation of same user, to promote distribution efficiency.
It should be understood that individual user is carried out a large amount of concentrate to access end in some period and is visited by a plurality of clients
It asks (a large amount of central access are to propose a large amount of access requests to access end), causes the network blockage towards access end, or even should
Individual user's therefore unjustified enrichment.In order to solve this problem, it can propose that primary request needs user's branch by the way that user is every
Pay the mode of the GAS of preset quantity, if the quantity of request that is proposed within a preset period of time by user to be equal to first pre-
If when quantity, then the user is needed to pay the mode of the GAS of the second preset quantity (it should be understood that the first preset quantity and second
Preset quantity can be arranged according to specific needs), to limit central access behavior.In this way, proposing to ask to improve user
The mode for the cost asked, the case where reducing individual user's unjustified enrichment.
It will also be appreciated that receiving end has distribution letter as shown in figure 4, the role of access end and receiving end can be interchanged
When the demand of breath, access end can also be used as, similarly, access end can also be used as receiving end.For example, the user of user terminal 1
After the user information of information, the user information of user terminal 2 and user terminal 3 is obtained by access end 1, it can be distributed to by access end 1
Access end 2, access end 3, receiving end 1, receiving end 2 and receiving end 3.User terminal can be terminal device, be also possible to server,
But access end and receiving end are servers.
It will also be appreciated that user, after access end registration, access end is the user information for obtaining the user.It was registering
Cheng Zhong, access end need to carry out identification to the user, and identification is prior art.After the user's registration, access end
User name is the public key of the user, and the password of access end is the private key of the user, and the private key of the user is used for the user
It signs, which may have access to access end by the public key and private key of the user.In addition, access end is by the use of the user
Before family information is distributed, the agreement for agreeing to dispatch user information, after signing an agreement, access end ability need to be signed with the user
Distribute the user information of the user, in this way, then having met relevant regulations.Furthermore since access end produces the user in access end
Raw behavioral data is drawn a portrait and is classified, and the classification of the user is obtained, and obtains informative abstract by the classification of the user, and broadcast
To block chain, so that receiving end be enable to be distributed to the user information of the user, which may include the state of user
(for example, shortage of funding state) leads to the benefit damage of receiving end in this way, then reducing receiving end and not obtaining the state of user
Problem.
It will also be appreciated that if the intelligent contract of block chain does not receive in preset time period since receiving informative abstract
The first cryptographic Hash generated by informative abstract, then the intelligent contract of block chain deducts the first parameter from access end.Due to information
Abstract is to be broadcast to block chain, and the first cryptographic Hash is also to be broadcast to block chain, thus intelligent contract (the intelligent contract of block chain
It is a kind of program that can voluntarily execute) it can be realized the above process.Certainly, the miner of block chain can deduct the first ginseng to access end
Number is kept accounts.It is arranged according to specific needs in addition, preset time period can be, for example, weekly.Due in preset time period not
Receive the first cryptographic Hash, thus, intelligent contract confirmation receiving end does not need the user information of access end, at this point, by access end Lai
The first parameter is undertaken, receiving end does not have to recognition user information when not needed, reduce the waste of receiving end management and resource, and
And by way of improving and distributing cost, reduce access end distribution invalid information.
The information dispensing method based on block chain is illustrated above in association with Fig. 1 to Fig. 4, is based on area below in conjunction with Fig. 5 explanation
The information distribution system of block chain.
It is of the existing technology in order to solve the problems, such as, the information distribution based on block chain that the embodiment of the invention provides a kind of
System, as shown in figure 5, the system includes access end 510 and receiving end 520；
The access end 510 includes:
First generation unit 511 is wide by the informative abstract for generating informative abstract according to the classification and quantity of user
It is multicast to block chain；
First processing units 512, for determining user identifier according to the application identification request, to obtain the user
First cryptographic Hash of mark；Respond request parameter is set, and the respond request parameter includes the first parameter；By the respond request
Parameter and first cryptographic Hash are broadcast to the block chain, and the user identifier is sent to the receiving end；
The receiving end 520 includes:
Second generation unit 521, for generating application identification request according to the informative abstract on the block chain, and
The application identification request is sent to the access end；
The second processing unit 522, for receiving the user identifier, according to first cryptographic Hash on the block chain
The second cryptographic Hash is obtained, second cryptographic Hash is broadcast to the block chain, and handled according to first parameter.
In embodiments of the present invention, the application identification request carries the classification and quantity of the user；
The first processing units 512 are also used to:
User identifier is determined according to the classification of the user and quantity；
Hash operation is carried out to the user identifier, obtains the first operation result；
It is signed using access end private key to first operation result, obtains the first Hash of the user identifier
Value.
In embodiments of the present invention, described the second processing unit 522 is also used to:
First cryptographic Hash is obtained from the block chain, and first cryptographic Hash is signed using receiving end private key
Name, obtains the second cryptographic Hash.
In embodiments of the present invention, the respond request parameter further includes the second parameter；
Second generation unit 521 is also used to after being handled according to first parameter, according to the user
Mark generates application information request, and application information request is sent to the access end；
The first processing units 512 are also used to be requested to determine user information according to the application information, to obtain institute
State the third cryptographic Hash of user information；The third cryptographic Hash is broadcast to the block chain, and the user information is sent
To the receiving end；
Described the second processing unit 522, is also used to receive the user information, obtains the third from the block chain and breathes out
Uncommon value, signs to the third cryptographic Hash using the receiving end private key, obtains the 4th cryptographic Hash, by the 4th Hash
Value is broadcast to the block chain, and is handled according to second parameter.
In embodiments of the present invention, the application information request carries the user identifier；
The first processing units 512 are also used to:
User information is determined according to the user identifier；
Hash operation is carried out to the user information, obtains the second operation result；
It is signed using the access end private key to second operation result, the third for obtaining the user information is breathed out
Uncommon value.
In embodiments of the present invention, the access end further includes pretreatment unit, is used for:
Before generating informative abstract according to the classification of user and quantity, user information and user identifier are obtained；
User is drawn a portrait and classified in the behavioral data that access end generates, obtains the corresponding classification of user；
User information, user identifier and the corresponding classification of user are subjected to matching storage.
It should be understood that performed by each component of the information distribution system provided in an embodiment of the present invention based on block chain
Function has been described in detail in a kind of information dispensing method based on block chain of above-described embodiment, no longer superfluous here
It states.
Fig. 6 shows the exemplary architecture 600 of access end.
As shown in fig. 6, framework 600 may include terminal device 601,602,603, network 604 and server 605.Network
604 between terminal device 601,602,603 and server 605 to provide the medium of communication link.Network 604 may include
Various connection types, such as wired, wireless communication link or fiber optic cables etc..
User can be used terminal device 601,602,603 and be interacted by network 604 with server 605, to receive or send out
Send message etc..Various telecommunication customer end applications, such as the application of shopping class, net can be installed on terminal device 601,602,603
(merely illustrative) such as the application of page browsing device, searching class application, instant messaging tools, mailbox client, social platform softwares.
Terminal device 601,602,603 can be the various electronic equipments with display screen and supported web page browsing, packet
Include but be not limited to smart phone, tablet computer, pocket computer on knee and desktop computer etc..
Server 605 can be to provide the server of various services, such as utilize terminal device 601,602,603 to user
The shopping class website browsed provides the back-stage management server (merely illustrative) supported.Back-stage management server can be to reception
To the data such as information query request analyze etc. processing, and by processing result (such as target push information, product letter
Breath -- merely illustrative) feed back to terminal device.
It should be understood that the number of terminal device, network and server in Fig. 6 is only schematical.According to realization need
It wants, can have any number of terminal device, network and server.
Below with reference to Fig. 7, it illustrates the computer systems 700 for the terminal device for being suitable for being used to realize the embodiment of the present invention
Structural schematic diagram.Terminal device shown in Fig. 7 is only an example, function to the embodiment of the present invention and should not use model
Shroud carrys out any restrictions.
As shown in fig. 7, computer system 700 includes central processing unit (CPU) 701, it can be read-only according to being stored in
Program in memory (ROM) 702 or be loaded into the program in random access storage device (RAM) 703 from storage section 708 and
Execute various movements appropriate and processing.In RAM 703, also it is stored with system 700 and operates required various programs and data.
CPU 701, ROM 702 and RAM 703 are connected with each other by bus 704.Input/output (I/O) interface 705 is also connected to always
Line 704.
I/O interface 705 is connected to lower component: the importation 706 including keyboard, mouse etc.；It is penetrated including such as cathode
The output par, c 707 of spool (CRT), liquid crystal display (LCD) etc. and loudspeaker etc.；Storage section 708 including hard disk etc.；
And the communications portion 709 of the network interface card including LAN card, modem etc..Communications portion 709 via such as because
The network of spy's net executes communication process.Driver 710 is also connected to I/O interface 705 as needed.Detachable media 711, such as
Disk, CD, magneto-optic disk, semiconductor memory etc. are mounted on as needed on driver 710, in order to read from thereon
Computer program be mounted into storage section 708 as needed.
Particularly, disclosed embodiment, the process described above with reference to flow chart may be implemented as counting according to the present invention
Calculation machine software program.For example, embodiment disclosed by the invention includes a kind of computer program product comprising be carried on computer
Computer program on readable medium, the computer program include the program code for method shown in execution flow chart.?
In such embodiment, which can be downloaded and installed from network by communications portion 709, and/or from can
Medium 711 is dismantled to be mounted.When the computer program is executed by central processing unit (CPU) 701, system of the invention is executed
The above-mentioned function of middle restriction.
It should be noted that computer-readable medium shown in the present invention can be computer-readable signal media or meter
Calculation machine readable storage medium storing program for executing either the two any combination.Computer readable storage medium for example can be --- but not
Be limited to --- electricity, magnetic, optical, electromagnetic, infrared ray or semiconductor system, device or device, or any above combination.Meter
The more specific example of calculation machine readable storage medium storing program for executing can include but is not limited to: have the electrical connection, just of one or more conducting wires
Taking formula computer disk, hard disk, random access storage device (RAM), read-only memory (ROM), erasable type may be programmed read-only storage
Device (EPROM or flash memory), optical fiber, portable compact disc read-only memory (CD-ROM), light storage device, magnetic memory device,
Or above-mentioned any appropriate combination.In the present invention, computer readable storage medium can be it is any include or storage journey
The tangible medium of sequence, the program can be commanded execution system, device or device use or in connection.And at this
In invention, computer-readable signal media may include in a base band or as carrier wave a part propagate data-signal,
Wherein carry computer-readable program code.The data-signal of this propagation can take various forms, including but unlimited
In electromagnetic signal, optical signal or above-mentioned any appropriate combination.Computer-readable signal media can also be that computer can
Any computer-readable medium other than storage medium is read, which can send, propagates or transmit and be used for
By the use of instruction execution system, device or device or program in connection.Include on computer-readable medium
Program code can transmit with any suitable medium, including but not limited to: wireless, electric wire, optical cable, RF etc. are above-mentioned
Any appropriate combination.
Flow chart and block diagram in attached drawing are illustrated according to the system of various embodiments of the invention, method and computer journey
The architecture, function and operation in the cards of sequence product.In this regard, each box in flowchart or block diagram can generation
A part of one unit of table, program segment or code, a part of said units, program segment or code include one or more
Executable instruction for implementing the specified logical function.It should also be noted that in some implementations as replacements, institute in box
The function of mark can also occur in a different order than that indicated in the drawings.For example, two boxes succeedingly indicated are practical
On can be basically executed in parallel, they can also be executed in the opposite order sometimes, and this depends on the function involved.Also it wants
It is noted that the combination of each box in block diagram or flow chart and the box in block diagram or flow chart, can use and execute rule
The dedicated hardware based systems of fixed functions or operations is realized, or can use the group of specialized hardware and computer instruction
It closes to realize.
Being described in unit involved in the embodiment of the present invention can be realized by way of software, can also be by hard
The mode of part is realized.Described unit also can be set in the processor, for example, can be described as: a kind of processor packet
Include the first generation unit and first processing units.Wherein, the title of these units is not constituted under certain conditions to the unit
The restriction of itself, for example, the first generation unit be also described as " informative abstract is generated according to the classification of user and quantity,
The informative abstract is broadcast to the unit of block chain ".
As on the other hand, the present invention also provides a kind of computer-readable medium, which be can be
Included in equipment described in above-described embodiment；It is also possible to individualism, and without in the supplying equipment.Above-mentioned calculating
Machine readable medium carries one or more program, when said one or multiple programs are executed by the equipment, makes
Obtaining the equipment includes: to generate informative abstract according to the classification and quantity of user, and the informative abstract is broadcast to block chain；According to
The application identification request determines user identifier, to obtain the first cryptographic Hash of the user identifier；Respond request is arranged to join
Number, the respond request parameter include the first parameter；The respond request parameter and first cryptographic Hash are broadcast to described
Block chain, and the user identifier is sent to the receiving end.
It should be understood that receiving end is identical as access end, it is only the unit that processor includes, and the function of realizing is different,
Details are not described herein.
Above-mentioned specific embodiment, does not constitute a limitation on the scope of protection of the present invention.Those skilled in the art should be bright
It is white, design requirement and other factors are depended on, various modifications, combination, sub-portfolio and substitution can occur.It is any
Made modifications, equivalent substitutions and improvements etc. within the spirit and principles in the present invention, should be included in the scope of the present invention
Within.
Claims (12)
1. a kind of information dispensing method based on block chain characterized by comprising
Access end generates informative abstract according to the classification and quantity of user, and the informative abstract is broadcast to block chain；
Receiving end generates application identification request according to the informative abstract on the block chain, and by the application identification request
It is sent to the access end；
The access end determines user identifier according to the application identification request, to obtain the first Hash of the user identifier
Value；Respond request parameter is set, and the respond request parameter includes the first parameter；By the respond request parameter and described first
Cryptographic Hash is broadcast to the block chain, and the user identifier is sent to the receiving end；
The receiving end receives the user identifier, obtains the second Hash according to first cryptographic Hash on the block chain
Value, is broadcast to the block chain for second cryptographic Hash, and handled according to first parameter.
2. the method according to claim 1, wherein it is described application identification request carry the user classification and
Quantity；
User identifier is determined according to the application identification request, to obtain the first cryptographic Hash of the user identifier, comprising:
User identifier is determined according to the classification of the user and quantity；
Hash operation is carried out to the user identifier, obtains the first operation result；
It is signed using access end private key to first operation result, obtains the first cryptographic Hash of the user identifier.
3. according to the method described in claim 2, it is characterized in that, being obtained according to first cryptographic Hash on the block chain
Second cryptographic Hash, comprising:
First cryptographic Hash is obtained from the block chain, is signed using receiving end private key to first cryptographic Hash,
Obtain the second cryptographic Hash.
4. according to the method described in claim 3, it is characterized in that, the respond request parameter further includes the second parameter；
After being handled according to first parameter, further includes:
The receiving end generates application information request according to the user identifier, and application information request is sent to described
Access end；
The access end requests to determine user information according to the application information, to obtain the third Hash of the user information
Value；The third cryptographic Hash is broadcast to the block chain, and the user information is sent to the receiving end；
The receiving end receives the user information, obtains the third cryptographic Hash from the block chain, uses the receiving end
Private key signs to the third cryptographic Hash, obtains the 4th cryptographic Hash, and the 4th cryptographic Hash is broadcast to the block chain,
And it is handled according to second parameter.
5. according to the method described in claim 4, it is characterized in that, application information request carries the user identifier；
It is requested to determine user information according to the application information, to obtain the third cryptographic Hash of the user information, comprising:
User information is determined according to the user identifier；
Hash operation is carried out to the user information, obtains the second operation result；
It is signed using the access end private key to second operation result, obtains the third Hash of the user information
Value.
6. according to the method described in claim 5, it is characterized in that, generating information according to the classification and quantity of user in access end
Before abstract, further includes:
Obtain user information and user identifier；
User is drawn a portrait and classified in the behavioral data that access end generates, obtains the corresponding classification of user；
User information, user identifier and the corresponding classification of user are subjected to matching storage.
7. a kind of information distribution system based on block chain, which is characterized in that including access end and receiving end；
The access end includes:
The informative abstract is broadcast to area for generating informative abstract according to the classification and quantity of user by the first generation unit
Block chain；
First processing units, for determining user identifier according to the application identification request, to obtain the user identifier
First cryptographic Hash；Respond request parameter is set, and the respond request parameter includes the first parameter；By the respond request parameter and
First cryptographic Hash is broadcast to the block chain, and the user identifier is sent to the receiving end；
The receiving end includes:
Second generation unit, for generating application identification request according to the informative abstract on the block chain, and will be described
Application identification request is sent to the access end；
The second processing unit obtains according to first cryptographic Hash on the block chain for receiving the user identifier
Second cryptographic Hash is broadcast to the block chain, and is handled according to first parameter by two cryptographic Hash.
8. system according to claim 7, which is characterized in that it is described application identification request carry the user classification and
Quantity；
The first processing units are also used to:
User identifier is determined according to the classification of the user and quantity；
Hash operation is carried out to the user identifier, obtains the first operation result；
It is signed using access end private key to first operation result, obtains the first cryptographic Hash of the user identifier.
9. system according to claim 8, which is characterized in that described the second processing unit is also used to:
First cryptographic Hash is obtained from the block chain, is signed using receiving end private key to first cryptographic Hash,
Obtain the second cryptographic Hash.
10. system according to claim 9, which is characterized in that the respond request parameter further includes the second parameter；
Second generation unit is also used to after being handled according to first parameter, raw according to the user identifier
It is requested at application information, and application information request is sent to the access end；
The first processing units are also used to be requested to determine user information according to the application information, to obtain the user
The third cryptographic Hash of information；The third cryptographic Hash is broadcast to the block chain, and the user information is sent to described
Receiving end；
Described the second processing unit is also used to receive the user information, obtains the third cryptographic Hash from the block chain, makes
It is signed with the receiving end private key to the third cryptographic Hash, obtains the 4th cryptographic Hash, the 4th cryptographic Hash is broadcasted
It is handled to the block chain, and according to second parameter.
11. system according to claim 10, which is characterized in that the application information request carries the user identifier；
The first processing units are also used to:
User information is determined according to the user identifier；
Hash operation is carried out to the user information, obtains the second operation result；
It is signed using the access end private key to second operation result, obtains the third Hash of the user information
Value.
12. system according to claim 11, which is characterized in that the access end further includes pretreatment unit, is used for:
Before generating informative abstract according to the classification of user and quantity, user information and user identifier are obtained；
User is drawn a portrait and classified in the behavioral data that access end generates, obtains the corresponding classification of user；
User information, user identifier and the corresponding classification of user are subjected to matching storage.
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| PCT/CN2019/130315 WO2020156008A1 (en) | 2019-01-30 | 2019-12-31 | Blockchain-based information distribution method and system |
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| CN111339206A (en) * | 2020-03-11 | 2020-06-26 | 中国建设银行股份有限公司 | Data sharing method and device based on block chain |
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| WO2020156008A1 (en) | 2020-08-06 |
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