CN107451485B

CN107451485B - Data processing method and device based on block chain

Info

Publication number: CN107451485B
Application number: CN201710407238.XA
Authority: CN
Inventors: 赵星
Original assignee: Advanced New Technologies Co Ltd
Current assignee: Advanced New Technologies Co Ltd
Priority date: 2017-06-02
Filing date: 2017-06-02
Publication date: 2020-03-13
Anticipated expiration: 2037-06-02
Also published as: CN107451485A

Abstract

The application discloses a data processing method and equipment based on a block chain, comprising the following steps: when determining a contract relationship established between a first user and a second user, the block chain node acquires user behavior data associated with the contract relationship based on the contract relationship and determines the data access authority of the user behavior data; determining a processing strategy of user behavior data according to a preset relation between data access authority and the processing strategy, wherein the processing strategy comprises a processing rule matched with the data access authority; and processing the user behavior data by using a processing strategy. By utilizing the block chain technology, different processing modes are adopted based on different data access authorities corresponding to user behavior data to ensure that the processed data are stored in block chain nodes, so that the data are effectively prevented from being falsified, the accuracy of credit data of the user obtained by subsequent evaluation according to the data is improved, and the risk of the internet financial business is effectively controlled.

Description

Data processing method and device based on block chain

Technical Field

The present application relates to the field of internet information processing technologies and computer technologies, and in particular, to a data processing method and device based on a block chain.

Background

With the development of science and technology, the economic form is developing from the currency economic form to the credit economic form. The term "credit economy" refers to the exchange of goods or financial transactions using credit as a medium for the transaction. The credit here refers to a mutually trusted production relationship and social relationship formed between different subjects and between commodity transactions. Based on such credit, contractual relationships may be established between different users or between a user and a merchant through which an exchange of goods or a financial transaction may be effected.

The contract refers to a legal document which is negotiated by two or more parties and is about a specific event (such as buying and selling, mortgage, leasing and the like). Based on the legal instrument, contractual relationships are established between two or more parties in relation to a particular event. In the legal document, the right and obligation of two or more parties are stipulated, and the two or more parties need to fulfill the corresponding obligation according to the right and obligation recorded in the legal document.

With the development of internet technology, internet financial services are gradually developed. In order to reduce the risk of the internet financial service, currently, a B2C (Business-to-Customer) method is generally adopted to evaluate the contract fulfillment capability of the user, so as to obtain the credit data of the user, so that the internet financial service platform can provide the corresponding internet financial service for the user according to the obtained credit data of the user.

However, the credit data of the user analyzed by the internet platform is at risk of being tampered, and once the credit data of the user is tampered, the internet financial service platform provides corresponding internet financial services for the user according to the tampered credit data of the user, which brings great risk to the internet financial service platform.

Therefore, a data processing method is needed to solve the problem that the trusted data is tampered in the prior art.

Disclosure of Invention

In view of this, embodiments of the present application provide a data processing method and device based on a block chain, so as to solve the problem that the trusted data is tampered in the prior art.

The embodiment of the application adopts the following technical scheme:

the embodiment of the application provides a data processing method based on a block chain, which comprises the following steps:

the block chain node determines a contract relation established between a first user and a second user;

acquiring user behavior data associated with the contract relation based on the contract relation, and determining data access authority of the user behavior data;

determining a processing strategy of the user behavior data according to a preset relation between data access authority and the processing strategy, wherein the processing strategy comprises a processing rule matched with the data access authority;

and processing the user behavior data by using the processing strategy.

An embodiment of the present application further provides a data processing device based on a block chain, including:

the determining unit is used for determining a contract relation established between the first user and the second user;

the acquisition unit is used for acquiring user behavior data associated with the contract relation based on the contract relation and determining the data access authority of the user behavior data;

the processing unit is used for determining a processing strategy of the user behavior data according to a preset relation between data access authority and the processing strategy, wherein the processing strategy comprises a processing rule matched with the data access authority; and processing the user behavior data by using the processing strategy.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

in the technical scheme provided by the embodiment of the application, when determining a contractual relationship established between a first user and a second user, a block chain link point acquires user behavior data associated with the contractual relationship based on the contractual relationship, and determines a data access right of the user behavior data; determining a processing strategy of the user behavior data according to a preset relation between data access authority and the processing strategy, wherein the processing strategy comprises a processing rule matched with the data access authority; and processing the user behavior data by using the processing strategy. According to the contract relation established by the contract signing platform, for the associated user behavior data generated in the contract fulfillment process, a block chain technology is utilized, different processing modes are adopted based on different data access authorities corresponding to the user behavior data, so that the processed data are stored in block chain nodes, the data are effectively prevented from being tampered, the accuracy of credit data of the user obtained by subsequent evaluation according to the data is improved, and the risk of the internet financial service is effectively controlled.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic flowchart of a data processing method according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a data processing method according to an embodiment of the present application;

fig. 3 is a schematic flowchart of a data processing method according to an embodiment of the present application;

fig. 4 is a schematic diagram of a contract signing request of a first user according to an embodiment of the present application;

FIG. 5 is a schematic diagram of contract fulfillment for a first user according to an embodiment of the present application;

fig. 6 is a schematic diagram of performance capability assessment of a second user according to an embodiment of the present application;

fig. 7 is a schematic flowchart of a data processing method based on a block chain according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a data processing apparatus according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a data processing apparatus according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a data processing apparatus according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a data processing apparatus based on a block chain according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a data processing system according to an embodiment of the present application.

Detailed Description

In order to achieve the purpose of the present application, an embodiment of the present application provides a data processing method and device based on a block chain, where when determining a contractual relationship established between a first user and a second user, a block chain link point acquires user behavior data associated with the contractual relationship based on the contractual relationship, and determines a data access right of the user behavior data; determining a processing strategy of the user behavior data according to a preset relation between data access authority and the processing strategy, wherein the processing strategy comprises a processing rule matched with the data access authority; and processing the user behavior data by using the processing strategy. According to the contract relation established by the contract signing platform, for the associated user behavior data generated in the contract fulfillment process, a block chain technology is utilized, different processing modes are adopted based on different data access authorities corresponding to the user behavior data, so that the processed data are stored in block chain nodes, the data are effectively prevented from being tampered, the accuracy of credit data of the user obtained by subsequent evaluation according to the data is improved, and the risk of the internet financial service is effectively controlled.

The contract signing platform described in the embodiment of the present application may be implemented by a microprogram, or may be a functional module integrated in an internet financial platform, which is not specifically limited herein. The type of the contract relation in the embodiment of the application is not limited, and can be a buying and selling relation, a borrowing relation and a mortgage relation which are specified by law; or the transaction relationship agreed among different users in daily life, such as: assignment of appointments between couples to housework, etc.

In the embodiment of the present application, a designated relationship is pre-established between the second user and the first user, where the designated relationship includes one or more of a relationship of relatives, a relationship of friends, and a relationship of classmates.

The blockchain network described in the embodiments of the present application preferentially selects the federation chains.

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic flowchart of a data processing method according to an embodiment of the present application. The method may be as follows. The execution main body of the embodiment of the application is a server corresponding to the contract signing platform.

Step 101: and receiving a contract signing request sent by a first user.

The contract signing request comprises a user identification of a second user and contract data, and the contract data is used for representing that the first user submits obligations to the second user for fulfillment within a set time.

In practical application, the contract signing mode generally adopts a mode that two parties or multiple parties negotiate and subscribe a paper contract and a mode that two parties or multiple parties reach an oral agreement, and the two modes have the problem that the contract fulfillment cannot be systematically supervised. In addition, due to the lack of legal knowledge between two parties or multiple parties, the signed paper contract or the agreed oral agreement has legal problems, and legal disputes are easy to occur during performance, so that inconvenience is brought to the two parties or the multiple parties.

In view of the above problems, in the embodiment of the present application, a contract signing platform is provided, and two or more parties that need to sign a contract can sign a contract through the contract signing platform, so that the performance capabilities of the two or more parties that sign a contract can be monitored.

If a first user needs to sign a contract with a second user, the first user logs in the contract signing platform through a used client side, and a contract event is determined in the contract signing platform. The contract event includes a contract type, a contract fulfillment time, and an obligation that the first user promises to fulfill the second user within a set time (or contract fulfillment time). And the client generates contract data based on the contract event input by the user and sends a contract signing request to the server, wherein the contract signing request comprises the user identification of the second user and the contract data.

It should be noted that the contract described in the embodiment of the present application may be a legal contract, and is negotiated and concluded by two parties or multiple parties; or may be a certain commitment of a user, such as: the first user committing to the second user: housework (e.g., including cooking, washing dishes, cleaning, washing clothes, etc.) for the next week is handled by the first user. Assuming that the commitment is a determined contract event, in order to monitor the performance capability of the first user, the first user may log in the contract signing platform through the used client, generate contract data in the contract signing platform, wherein the contract data includes contract fulfillment time and an obligation that the first user commits to the second user for fulfillment within a set time (or contract fulfillment time), and send a contract signing request carrying the contract data and a user identifier of the second user to the server.

Preferably, in this embodiment of the application, a first user may select a contracting party to which a contract is signed, that is, one of user identifiers is selected from a user identifier set of a second user who establishes a specified relationship with the first user in advance, and the second user corresponding to the selected user identifier is determined as the contracting party, where the specified relationship includes one or more of a relationship among relatives, a relationship among friends, and a relationship among classmates.

It should be noted that, when the first user logs in the contract signing platform through the used client, the server may determine, according to the user identifier of the first user, a user identifier set of a second user that establishes a set relationship with the first user, and send the user identifier set to the first user.

Step 102: and sending the contract signing request to a second user corresponding to the user identification of the second user.

In the embodiment of the application, when receiving a contract signing request sent by a first user, a server analyzes a user identifier of a second user from the contract signing request, and sends the contract signing request to the second user corresponding to the user identifier of the second user.

Step 103: and receiving confirmation information returned by the second user.

In the embodiment of the application, when receiving the contract signing request sent by the server, the second user further determines whether to accept the contract signing request. On one hand, whether the obligation recorded in the contract data contained in the contract signing request is reasonable and legal needs to be determined; and on the other hand, whether the contract signing request belongs to the real meaning expression.

If the second user determines to accept the contract signing request, sending confirmation information to the server; otherwise, sending rejection information to the server.

Step 104: and establishing a contractual relationship between the first user and the second user according to the confirmation information.

In the embodiment of the application, when receiving the confirmation information sent by the second user, the server determines that the second user accepts the contract signing request, and establishes a contract relationship between the first user and the second user, so as to monitor the performance capability of the first user and/or the second user for the contract relationship subsequently.

The following description will be given taking monitoring of the performance capability of the first user as an example.

In the embodiment of the application, when the contract relationship between the first user and the second user is established, the contract fulfillment prompt message is generated according to the contract fulfillment time contained in the contract signing request.

And the contract fulfillment prompt message is used for prompting the first user to fulfill obligations corresponding to the contract relation.

Preferably, the method further comprises:

and when the set time (namely contract fulfillment time) is reached, transmitting contract fulfillment prompt information to the first user.

In this embodiment, some users may have fulfilled the obligation corresponding to the contract relation before the contract fulfillment time, which indicates that the performance capabilities of these users are relatively strong, and therefore, before sending the contract fulfillment prompt message to the first user, it is further determined whether the first user has fulfilled the obligation corresponding to the contract relation.

And when determining that the first user does not fulfill the obligation corresponding to the contract relation, sending contract fulfillment prompt information to the first user.

And when determining that the first user has fulfilled the obligation corresponding to the contract relation, acquiring the performance data of the first user.

The performance data comprises the contract relation, behavior data for fulfilling obligations corresponding to the contract relation and the generation time of the behavior data.

Preferably, in an embodiment of the present application, the method further includes:

and receiving the fulfillment data sent by the first user and sending the fulfillment data to the second user.

It should be noted that, the contract fulfillment time described in the embodiment of the present application may be one (for example, a borrowing contract in which a repayment date of a borrower is specified), or may be multiple (for example, a commitment made by a first user to a second user for a housework, where an effective period of the commitment may be 7 days (nos. 01-07)), then the fulfillment data sent by the first user may be a data packet for the contract fulfillment time, and if the contract fulfillment time is one, the data packet includes a fulfillment data; if the contract fulfillment time is multiple, then the data package contains multiple fulfillment data (e.g., 7), each corresponding to a contract fulfillment sub-time. For a contract fulfillment time period (comprising a plurality of time points), the first user may send the fulfillment data corresponding to each time point to the server when generating the fulfillment data corresponding to that time point.

and receiving evaluation data sent by the second user, wherein the evaluation data is used for representing that the second user evaluates the performance capability of the first user according to the performance data, and the evaluation data comprises one or more of on-time performance and performance degree.

Specifically, when receiving fulfillment data sent by a server, a second user evaluates fulfillment capabilities of the first user according to the fulfillment data.

The evaluation may be an overall evaluation of the performance capability of the first user for the contract relation, or may be an evaluation of the performance capability of the first user at a contract fulfillment time point for one contract fulfillment time point in the contract relation, and a comprehensive evaluation is given at the end of the contract fulfillment period, which is not specifically limited herein.

The evaluation here includes whether to perform on time, how effective the performance is completed, and the like.

In order to ensure that a second user can evaluate the performance capability of a first user in time, in this embodiment of the application, when a performance period of the contract relation is ended, an evaluation prompt message is sent to the second user, where the evaluation prompt message is used to prompt the second user to evaluate the performance capability of the first user.

In an embodiment of the present application, the method further includes:

sending the assessment data to the first user.

If the first user disagrees with the evaluation data of the second user, receiving disagreement data sent by the first user, wherein the disagreement data is used for representing disagreement of the first user with the evaluation data;

and storing the contract relation, the objection data and the evaluation data.

Preferably, the method further comprises:

and processing the credit data of the first user according to the mapping relation.

In order to ensure that the credit of the first user is evaluated based on the evaluation data subsequently, the server stores the mapping relation between the objection data and the evaluation data, and the influence degree of the evaluation data on the credit data of the first user can be determined through the big data analysis, so that the accuracy of the evaluation of the credit data of the first user is ensured.

In this embodiment of the present application, after the server obtains the evaluation data sent by the second user, the method further includes:

and processing the credit data of the first user according to the evaluation data.

Specifically, the credit value of the first user is adjusted according to the evaluation data.

I.e. determining an impact factor for the evaluation data, with which the credit value of the first user is adjusted.

Specifically, according to the evaluation data and historical evaluation data, a credit label of the first user is determined, wherein the credit label is used for representing the credibility level of the user, and a mapping relation between the credit label and the user identifier of the first user is established.

In the embodiments of the present application, the credit tag includes but is not limited to: the system comprises a spectrum leaning tag, a credible tag, a pending tag and an incredible tag. Different credit labels correspond to a credit interval.

The credit value corresponding to the spectrum leaning tag is larger than the credit value corresponding to the credible tag; the credit value corresponding to the credible label is larger than the credit value corresponding to the undetermined label; and the credit value corresponding to the undetermined label is larger than the credit value corresponding to the untrusted label.

In this embodiment of the application, when the first user makes a contract request with the second user, the first user may further include a disclosure authority of the fulfillment result in the contract request, that is, when fulfillment of a contract relationship included in the contract request is completed, the fulfillment data and the evaluation data need to be sent to who, which indicates that he has an authority to view the fulfillment data and the evaluation data.

Specifically, according to the disclosure authority of the fulfillment result included in the contract signing request, the contract relation and the evaluation data are published through a set social platform, so that other users corresponding to the disclosure authority access the evaluation data through the social platform.

For example: if the disclosure authority is that friends of the first user and the second user can access, the contract relation and the evaluation data are published through a set social platform, and the evaluation data can be accessed by the user who establishes a friend relation with the first user and the second user in the social platform;

for example: and if the disclosure authority is that the relatives of the first user and the second user can access, the contract relation and the evaluation data are published through a set social platform, and the evaluation data can be accessed by the user establishing the relativity relation with the first user and the second user in the social platform.

According to the technical scheme provided by the embodiment of the application, a contract signing platform is provided, and a contract signing request sent by a first user is received on the contract signing platform, wherein the contract signing request comprises a user identifier of a second user and contract data, and the contract data is used for representing an obligation which is committed to be fulfilled by the first user to the second user within a set time; sending the contract signing request to a second user corresponding to the user identification of the second user; and receiving confirmation information returned by the second user, and establishing a contract relation between the first user and the second user according to the confirmation information. Therefore, contract fulfillment between users can be effectively monitored, credit assessment of the users is expanded from a B2C mode to a C2C (Customer-to-Customer) mode, a credit assessment mechanism is perfected, the credit of the users is comprehensively assessed effectively by acquiring assessment data generated by various contract relations among different users, accuracy of the credit assessment of the users is effectively improved, and risks of internet financial services are effectively controlled.

Based on the same inventive concept, fig. 2 is a schematic flow chart of a data processing method provided in the embodiment of the present application. The method may be as follows. The execution main body of the embodiment of the application is a client corresponding to the contract signing platform.

Step 201: determining a contract event and generating contract data based on the contract event, wherein the contract data is used for representing that the first user promises obligations fulfilled by the second user within a set time.

before generating contract data, selecting one user identifier from a user identifier set of a second user establishing a designated relationship with the first user in advance, and determining the second user corresponding to the selected user identifier as a contracted party, wherein the designated relationship comprises one or more of a relationship of relatives, a relationship of friends and a relationship of classmates.

Step 202: and sending a contract signing request carrying the identification of the second user and the contract data to a server, so that the server processes the contract signing request.

and after the contract relation with the second user is established, according to the set time contained in the contract signing request, fulfilling obligations corresponding to the contract relation, and sending behavior data generated by fulfilling obligations, the generation time of the behavior data and the fulfillment data of the contract relation to the server.

Based on the same inventive concept, fig. 3 is a schematic flow chart of a data processing method provided in the embodiment of the present application. The method may be as follows. The execution main body of the embodiment of the application is a client corresponding to the contract signing platform.

Step 301: and receiving a contract signing request sent by the server.

The contract signing request comprises a user identification of a first user and contract data, and the contract data is used for representing that the first user makes a commitment to a second user for fulfilling obligations within a set time.

Step 302: and if the contract signing request is confirmed to be accepted, sending confirmation information to the server, so that the server establishes a contract relation between the first user and the second user according to the confirmation information.

receiving fulfillment data sent by the server, wherein the fulfillment data comprises the contract relation, behavior data for fulfilling obligations corresponding to the contract relation and generation time of the behavior data;

according to the fulfillment data, evaluating the fulfillment capability of the first user and generating evaluation data, wherein the evaluation data comprises one or more of on-time fulfillment and fulfillment degree;

and sending the evaluation data to the server.

Fig. 4 is a schematic diagram of a contract signing request of a first user according to an embodiment of the present application.

As can be seen from fig. 4, the first user starts the client corresponding to the contract signing platform, and after logging in the client, displays a contract signing request page in the client corresponding to the contract signing platform, and displays a contract type, a contracted party, a contract fulfillment time, an obligation for fulfilling the contract, and the like in the page. And after the first user inputs related contract content in the page, triggering the submission control to be regarded as sending a contract signing request to the server.

Fig. 5 is a schematic diagram of contract fulfillment of a first user according to an embodiment of the present application.

As can be seen from fig. 5, after the server establishes the contract relationship between the first user and the second user, the client used by the first user displays a contract fulfillment page, where the contract fulfillment page includes the contract relationship, the contracting party, the contract fulfillment time, and the contract fulfillment data includes fulfillment data generated at different time points, and may be displayed through one page or through multiple pages, which is not limited herein.

Fig. 6 is a schematic diagram of performance capability assessment of a second user according to an embodiment of the present application.

As can be seen from fig. 6, after the second user accepts the contract signing request of the first user, a performance evaluation page is displayed in the client used by the second user, and the page includes the initiator of the contract relationship (user identification of the first user), performance data sent by the first user, and evaluation data of the second user. And after the second user inputs the evaluation data in the page, triggering a submission control to treat the evaluation data as being sent to the server so as to evaluate the performance capability of the first user.

In the above embodiment, a large amount of data for evaluating user credit is generated, and in order to ensure that the data is not tampered, fig. 7 is a flowchart illustrating a data processing method based on a block chain according to an embodiment of the present application. The method may be as follows. The execution subject of the embodiment of the application is a blockchain node in a blockchain network.

Step 701: and the block chain node determines the contract relation established between the first user and the second user.

In the embodiment of the present application, a contract signing platform is provided, and the contract signing platform may serve as a blockchain node in a blockchain network. The block link point may determine whether a contractual relationship is established between the first user and the second user.

Specifically, firstly, a contract signing request sent by a first user is received, wherein the contract signing request comprises a user identifier of a second user and contract data, and the contract data is used for representing obligations which are met by the first user to the second user within a set time.

And secondly, sending the contract signing request to a second user corresponding to the user identification of the second user.

And finally, receiving confirmation information returned by the second user, and establishing a contract relation between the first user and the second user according to the confirmation information.

The specific implementation manner can refer to the content shown in fig. 1, and is not described in detail here.

In addition, since the contractual relationship belongs to a social relationship between two or more parties to a contract, whether the contractual relationship is open or not also requires two or more parties to negotiate to determine. In the embodiment of the application, when the first user establishes a contract relationship with the second user, data access rights of user behavior data generated by the first user or the second user in the contract fulfillment process can be negotiated. Data access rights are understood here as the scope of disclosure, i.e. which users are able to access user behavior data generated by the first user or the second user during the fulfillment of the contract. In the embodiment of the present application, the data access permission may be determined according to a data type, or may also be determined according to a data source, which is not specifically limited herein.

If the data access authority of different user behavior data is determined based on the data source, when a contract relationship is established between the first user and the second user, the contract relationship comprises a mapping relationship between the data access authority of the data source and the data access authority of the user behavior data, so that when the contract signing platform acquires the user behavior data generated by different users, the data access authority of the user behavior data can be determined according to the mapping relationship.

and storing the contract relation into a block chain.

When a contract relationship is established between a first user and a second user, the contract content for the contract relationship may be stored in a block chain according to an existing block chain technology; the contract content can also be encrypted by using a private key in a first public-private key pair configured for the first user and the second user, and the encrypted contract content is stored in the block chain, so that the contract content can only be browsed by contract-making parties (namely the first user and the second user) through a public key in the first public-private key pair.

Step 702: and the block chain node acquires user behavior data associated with the contract relation based on the contract relation and determines the data access authority of the user behavior data.

In this embodiment of the present application, once a certain contractual relationship is established between a first user and a second user, user behavior data will be generated when the first user or the second user fulfills an obligation corresponding to the contractual relationship, and then the blockchain node may obtain the user behavior data associated with the contractual relationship.

Because the mapping relationship between the data source and the data access authority of the user behavior data is stored in the contractual relationship, the data source of the obtained user behavior data can be determined based on the mapping relationship, and the data access authority of the user behavior data is determined based on the data source, wherein the data access authority comprises one of access by both contracting parties, access by a user establishing a specified relationship with both contracting parties and unlimited access, and the specified relationship comprises one or more of a relationship of relativity, a relationship of friends and a relationship of classmates.

In the embodiment of the present application, the user behavior data associated with the contractual relationship includes, but is not limited to: performance data, assessment data.

Specifically, the fulfillment data sent by the first user and generated in the process of fulfilling the contract relation is received, where the fulfillment data includes the contract relation, behavior data for fulfilling obligations corresponding to the contract relation, and generation time of the behavior data.

The specific implementation manner of receiving the fulfillment data sent by the first user may refer to the specific content in the embodiment shown in fig. 1, and details are not repeated here.

When the fulfillment data sent by a first user is acquired, if the contract relation includes that the access right corresponding to the user behavior data generated by the first user is accessed by both contract-making parties, determining that the data access right of the fulfillment data is accessed by both contract-making parties.

And if the contract relation comprises the access authority corresponding to the user behavior data generated by the first user and is accessed by the user establishing the specified relation with the contract-making parties, determining that the data access authority of the fulfillment data is accessed by the user establishing the specified relation with the contract-making parties.

sending the fulfillment data to the second user.

Specifically, receiving evaluation data sent by the second user and used for evaluating the performance capability of the first user, wherein the evaluation data comprises one or more of on-time performance and performance degree.

The specific implementation manner of receiving the evaluation data sent by the second user may refer to the specific content in the embodiment shown in fig. 1, and details are not repeated here.

When the evaluation data sent by the second user is acquired, if the contract relation includes that the access authority corresponding to the user behavior data generated by the second user is accessed by both contract-making parties, determining that the data access authority of the evaluation data is accessed by both contract-making parties.

And if the contract relation comprises the access authority corresponding to the user behavior data generated by the second user and is accessed by the user establishing the specified relation with the contract contracting parties, determining that the data access authority of the evaluation data is accessed by the user establishing the specified relation with the contract contracting parties.

Step 703: and determining a processing strategy of the user behavior data by the block chain node according to a preset relation between the data access authority and the processing strategy, wherein the processing strategy comprises a processing rule matched with the data access authority.

In the embodiment of the application, the block link points may pre-establish a mapping relationship between the data access authority and the processing policy, so that once the data access authority of the user behavior data is different, the corresponding processing policy is also different.

In the embodiment of the present application, the data access authority can be divided into the following types, but not limited to:

1. and the contract parties access the system. That is, the user behavior data only allows the contract to be accessed by both parties, i.e., the first user and the second user in the embodiment of the present application.

2. Accessed by a user who establishes a specified relationship with both parties to the contract. That is, the user behavior data not only allows the contract to contract and both parties to access, that is, the first user and the second user in the embodiment of the present application access; other users who establish a specified relationship with the first user and the second user are also allowed access, for example: the user identifier of the first user and the user identifier of the second user belong to a user group, and then other users in the user group can be determined as other users establishing a specified relationship with the first user and the second user.

3. Without limited access. That is, the access object of the user behavior data is not limited.

In the embodiment of the application, different processing strategies are determined for different data access rights.

If the data access authority is accessed by both sides of the contract making, a public and private key pair is distributed to both sides of the contract making in advance, the public and private key pair can be distributed to both sides of the contract making when the contract relation is established, and the determined processing strategy can be used for processing the user behavior data generated by using the private key pair in the public and private key pair distributed to both sides of the contract making.

If the data access authority is accessed by a user who establishes a specified relationship with the contract contracting parties, a public-private key pair is allocated to a user group to which the contract contracting parties belong in advance, the public-private key pair can be allocated to the user group when the contract relation is established between the contract contracting parties, a mapping relationship between the group identifier of the user group and the public-private key pair is established, and the determined processing strategy can be used for processing user behavior data generated by using a private key pair in the public-private key pair allocated to the user group.

Specifically, in the embodiment of the present application, for the fulfillment data/evaluation data, if the data access right is accessed by both sides of the contract, the determined processing policy is to process the user behavior data generated by using the private key pair in the public and private key pair allocated to both sides of the contract; and if the data access authority is accessed by the user who establishes the specified relationship with the contract contracting parties, the determined processing strategy is to process the user behavior data generated by the private key pair in the public and private key pair distributed for the user group.

Step 704: and the block chain link points process the user behavior data by utilizing the processing strategy.

In the embodiment of the application, if the determined processing policy is to process the generated user behavior data by using a public-private key pair allocated to both sides of contract agreement, determining a first public-private key pair allocated to the first user and the second user according to a processing rule which is contained in the processing policy and matched with access of both sides of contract agreement; encrypting the performance data/the evaluation data by using a private key in the first public-private key pair; and storing the performance data/the assessment data obtained by encryption into a blockchain.

If the determined processing strategy is to process the generated user behavior data by utilizing a public-private key pair distributed for a user group, determining a second public-private key pair according to a processing rule which is contained in the processing strategy and is matched with the access of a user establishing an appointed relationship with a contract-establishing party, wherein the second public-private key pair is distributed to the user group to which the user identifier of the first user and the user identifier of the second user belong, and the user group also comprises the user identifier of at least one user establishing an appointed relationship with the user identifier of the first user and the user identifier of the second user; encrypting the performance data/the evaluation data by using a private key in the second public-private key pair; and storing the performance data/the assessment data obtained by encryption into a blockchain.

In the present embodiment, "first" and "second" of "first public-private key pair" and "second public-private key pair" do not have a special meaning, and only indicate different public-private key pairs.

receiving an evaluation data access request sent by the first user, wherein the evaluation data access request comprises a user identifier of the second user and the contractual relationship;

and sending the encrypted evaluation data to the first user, so that the first user decrypts the received encrypted evaluation data by using the public key in the first public-private key pair to obtain the evaluation data.

Or the first user decrypts the received encrypted evaluation data by using the public key in the second public-private key pair to obtain the evaluation data.

As for which public key in the public-private key pair is used for decryption, the first user is required to determine the data access authority of the evaluation data, and then the public key in the public-private key pair corresponding to the data access authority is determined.

processing credit data of the first user according to the evaluation data;

encrypting the processed credit data by using a private key in a public and private key pair configured for the first user;

and storing the encrypted credit data into the block chain.

Specifically, according to the evaluation data and historical evaluation data, determining a credit label of the first user, wherein the credit label is used for representing the credibility level of the user; and establishing a mapping relation between the user identification of the first user and the credit label.

In an embodiment of the present application, the method further includes:

sending the assessment data to the first user;

receiving objection data sent by the first user, wherein the objection data are used for representing objection of the first user to the evaluation data;

and storing the contract relation, the objection data and the evaluation data.

It should be noted that the storage method here may also be an encryption method, and how to encrypt may refer to the above-mentioned method, which is not described here again.

According to the technical scheme provided by the embodiment of the application, when determining the contract relationship established between the first user and the second user, the blockchain node acquires the user behavior data associated with the contract relationship based on the contract relationship and determines the data access authority of the user behavior data; determining a processing strategy of the user behavior data according to a preset relation between data access authority and the processing strategy, wherein the processing strategy comprises a processing rule matched with the data access authority; and processing the user behavior data by using the processing strategy. According to the contract relation established by the contract signing platform, for the associated user behavior data generated in the contract fulfillment process, a block chain technology is utilized, different processing modes are adopted based on different data access authorities corresponding to the user behavior data, so that the processed data are stored in block chain nodes, the data are effectively prevented from being tampered, the accuracy of credit data of the user obtained by subsequent evaluation according to the data is improved, and the risk of the internet financial service is effectively controlled.

Based on the same inventive concept, fig. 8 is a schematic structural diagram of a data processing device provided in an embodiment of the present application. The data processing apparatus includes: a receiving unit 801, a transmitting unit 802 and a processing unit 803, wherein:

a receiving unit 801, configured to receive a contract signing request sent by a first user, where the contract signing request includes a user identifier of a second user and contract data, and the contract data is used to represent an obligation that the first user promises to fulfill the second user within a set time;

a sending unit 802, configured to send the contract signing request to a second user corresponding to the user identifier of the second user;

the receiving unit 801 is configured to receive confirmation information returned by the second user;

the processing unit 803 establishes a contractual relationship between the first user and the second user according to the confirmation information.

In another embodiment of the present application, when the set time is reached, the sending unit 802 sends contract fulfillment prompting information to the first user, where the contract fulfillment prompting information is used to prompt the first user to fulfill obligations corresponding to the contract relationship.

In another embodiment of the present application, the sending unit 802 sends contract fulfillment prompting information to the first user, including:

In another embodiment of the present application, the receiving unit 801 receives fulfillment data sent by the first user, where the fulfillment data includes the contract relation, behavior data for fulfilling obligations corresponding to the contract relation, and generation time of the behavior data;

the sending unit 802 sends the fulfillment data to the second user.

In another embodiment of the present application, the receiving unit 801 receives evaluation data sent by the second user, where the evaluation data is used to characterize that the second user evaluates the performance capability of the first user according to the performance data, and the evaluation data includes one or more of on-time performance and performance degree.

In another embodiment of the present application, the processing unit 803 processes the credit data of the first user according to the evaluation data.

In another embodiment of the present application, the processing unit 803 processes the credit data of the first user according to the evaluation data, including:

adjusting the credit value of the first user according to the evaluation data.

determining a credit label of the first user according to the evaluation data and historical evaluation data, wherein the credit label is used for representing the credibility level of the user;

and establishing a mapping relation between the credit label and the user identification of the first user.

In another embodiment of the present application, the receiving unit 801 receives the evaluation data sent by the second user, including:

and sending assessment prompt information to the second user when the performance period of the contract relation is finished, wherein the assessment prompt information is used for prompting the second user to assess the performance capability of the first user.

In another embodiment of the present application, the data processing apparatus further comprises: a storage unit 804, wherein:

the sending unit 802, sending the evaluation data to the first user;

the receiving unit 801 is configured to receive objection data sent by the first user, where the objection data is used to characterize objection of the first user to the evaluation data;

the storage unit 804 stores the contractual relationship, the mapping relationship between the objection data and the evaluation data.

In another embodiment of the present application, the processing unit 803 processes the credit of the first user according to the mapping relationship.

In another embodiment of the present application, the processing unit 803 issues the contract relation and the evaluation data through a set social platform according to the disclosure authority of the fulfillment result included in the contract signing request, so that other users corresponding to the disclosure authority access the evaluation data through the social platform.

In another embodiment of the present application, a designated relationship is pre-established between the second user and the first user, and the designated relationship includes one or more of a relationship of relativity, a relationship of friends, and a relationship of classmates.

The data processing device described in the embodiments of the present application may be implemented by software or hardware, and is not limited herein. The data processing equipment provides a contract signing platform, and on the contract signing platform, a contract signing request sent by a first user is received, wherein the contract signing request comprises a user identifier of a second user and contract data, and the contract data is used for representing obligations which are met by the first user to the second user within a set time; sending the contract signing request to a second user corresponding to the user identification of the second user; and receiving confirmation information returned by the second user, and establishing a contract relation between the first user and the second user according to the confirmation information. Therefore, contract fulfillment between users can be effectively monitored, credit assessment of the users is expanded from a B2C mode to a C2C (Customer-to-Customer) mode, a credit assessment mechanism is perfected, the credit of the users is comprehensively assessed effectively by acquiring assessment data generated by various contract relations among different users, accuracy of the credit assessment of the users is effectively improved, and risks of internet financial services are effectively controlled.

Based on the same inventive concept, fig. 9 is a schematic structural diagram of a data processing device provided in an embodiment of the present application. The data processing apparatus includes: a processing unit 901 and a sending unit 902, wherein:

the processing unit 901 determines a contract event and generates contract data based on the contract event, wherein the contract data is used for representing that the first user promises obligations fulfilled within a set time to the second user;

a sending unit 902, configured to send a contract signing request carrying the identifier of the second user and the contract data to a server, so that the server processes the contract signing request.

In another embodiment of the present application, the data processing apparatus further comprises: a selecting unit 903, wherein:

the selecting unit 903 selects one of the user identifiers from the user identifier set of the second user that establishes a designated relationship with the first user in advance before generating the contract data, and determines the second user corresponding to the selected user identifier as the contracted party, where the designated relationship includes one or more of a relationship of relatives, a relationship of friends, and a relationship of classmates.

In another embodiment of the present application, after determining that a contract relationship is established with the second user, the processing unit 901 fulfills an obligation corresponding to the contract relationship according to the set time included in the contract signing request;

the sending unit 902 sends the performance data carrying the behavior data generated by the performance obligation, the generation time of the behavior data and the contract relation to the server.

The data processing device described in the embodiments of the present application may be implemented by software or hardware, and is not limited herein.

Based on the same inventive concept, fig. 10 is a schematic structural diagram of a data processing apparatus provided in an embodiment of the present application. The data processing apparatus includes: a receiving unit 1001 and a transmitting unit 1002, wherein:

a receiving unit 1001, configured to receive a contract signing request sent by a server, where the contract signing request includes a user identifier of a first user and contract data, and the contract data is used to represent an obligation that the first user promises to a second user for fulfillment within a set time;

a sending unit 1002, configured to send confirmation information to the server if it is determined that the contract signing request is accepted, so that the server establishes a contract relationship between the first user and the second user according to the confirmation information.

In another embodiment of the present application, the data processing apparatus further comprises: a processing unit 1003, wherein:

the receiving unit 1001 receives fulfillment data sent by the server, where the fulfillment data includes the contract relation, behavior data fulfilling obligations corresponding to the contract relation, and generation time of the behavior data;

the processing unit 1003, according to the fulfillment data, evaluates the fulfillment capability of the first user, and generates evaluation data, where the evaluation data includes one or more of whether to perform on time and degree of fulfillment;

the sending unit 1002 sends the evaluation data to the server.

Fig. 11 is a schematic structural diagram of a data processing device based on a block chain according to an embodiment of the present application. The data processing apparatus includes: a determining unit 1101, an obtaining unit 1102 and a processing unit 1103, wherein:

a determining unit 1101 that determines a contractual relationship established between a first user and a second user;

an obtaining unit 1102, configured to obtain user behavior data associated with the contract relationship based on the contract relationship, and determine a data access right of the user behavior data;

the processing unit 1103 determines a processing policy of the user behavior data according to a preset relationship between a data access authority and the processing policy, where the processing policy includes a processing rule matched with the data access authority; and processing the user behavior data by using the processing strategy.

In another embodiment of the present application, the determining, by the obtaining unit 1102, data access rights of the user behavior data includes:

determining the data source of the acquired user behavior data based on the mapping relation between the data source and the data access authority of the user behavior data contained in the contract relation;

and determining data access authority of the user behavior data based on the data source, wherein the data access authority comprises one of access by both contract-making parties, access by a user establishing a specified relationship with both contract-making parties and unlimited access, and the specified relationship comprises one or more of a relationship of relativity, a relationship of friends and a relationship of classmates.

In another embodiment of the present application, the acquiring unit 1102 acquires user behavior data associated with the contractual relationship, including:

and receiving fulfillment data which is sent by the first user and generated in the process of fulfilling the contract relation, wherein the fulfillment data comprises the contract relation, behavior data for fulfilling obligations corresponding to the contract relation and generation time of the behavior data.

In another embodiment of the present application, the data processing apparatus further comprises: a transmission unit 1104 in which:

the sending unit 1104 sends the fulfillment data to the second user.

and if the contract relation comprises the access right corresponding to the user behavior data generated by the first user and is accessed by both contract-making parties, determining that the data access right of the fulfillment data is accessed by both contract-making parties.

and receiving evaluation data sent by the second user and used for evaluating the performance capability of the first user, wherein the evaluation data comprises one or more of on-time performance and performance degree.

and if the contract relation comprises the access authority corresponding to the user behavior data generated by the second user and is accessed by both contract-making parties, determining that the data access authority of the evaluation data is accessed by both contract-making parties.

In another embodiment of the present application, the processing unit 1103 performs processing on the user behavior data by using the processing policy, including:

determining a first public-private key pair distributed to the first user and the second user according to a processing rule contained in the processing strategy and matched with the access of both sides contracted by a contract;

encrypting the performance data/the evaluation data by using a private key in the first public-private key pair;

storing the encrypted performance data/assessment data in a blockchain.

In another embodiment of the present application, the data processing apparatus further comprises: a receiving unit 1105, wherein:

the receiving unit 1105, receiving an evaluation data access request sent by the first user, where the evaluation data access request includes a user identifier of the second user and the contractual relationship;

determining a second public and private key pair according to a processing rule contained in the processing strategy and matched with user access established by both sides with contract, wherein the second public and private key pair is distributed to a user group to which a user identifier of the first user and a user identifier of the second user belong, and the user group also contains a user identifier of at least one user establishing an appointed relationship with the user identifier of the first user and the user identifier of the second user;

encrypting the performance data/the evaluation data by using a private key in the second public-private key pair;

storing the encrypted performance data/assessment data in a blockchain.

In another embodiment of the present application, the determining unit 1101 determines a contractual relationship established between a first user and a second user, including:

receiving a contract signing request sent by a first user, wherein the contract signing request comprises a user identifier of a second user and contract data, and the contract data is used for representing obligations which are met by the first user to the second user within a set time;

sending the contract signing request to a second user corresponding to the user identification of the second user;

and receiving confirmation information returned by the second user, and establishing a contract relation between the first user and the second user according to the confirmation information.

In another embodiment of the present application, the data processing apparatus further comprises: a memory unit 1106, wherein:

the storage unit 1106 stores the contract relationship in a block chain.

In another embodiment of the present application, the processing unit 1103 processes the credit data of the first user according to the evaluation data;

and storing the encrypted credit data into the block chain.

In another embodiment of the present application, the processing unit 1103 processes the credit data of the first user according to the evaluation data, including:

adjusting the credit value of the first user according to the evaluation data.

and establishing a mapping relation between the user identification of the first user and the credit label.

In another embodiment of the present application, the sending unit 1104 sends the evaluation data to the first user;

and storing the contract relation, the objection data and the evaluation data.

It should be noted that the data processing device provided in the embodiment of the present application may be implemented by software, or may be implemented by hardware, and is not limited specifically herein. The data processing equipment utilizes the block chain technology for the associated user behavior data generated in the contract fulfillment process through the contract relation established by the contract signing platform, adopts different processing modes based on different data access authorities corresponding to the user behavior data to ensure that the processed data are stored in the block chain nodes, effectively ensures that the data are not falsified, improves the accuracy of the credit data of the user obtained by subsequent evaluation according to the data, and further realizes effective control on the risk of the internet financial service.

Based on the same inventive concept, fig. 12 is a schematic structural diagram of a data processing system according to an embodiment of the present application.

Included in the data processing system are a client 1201 of a first user, a client 1202 of a second user, a contract signing platform 1203, a monitoring platform 1204, a social platform 1205, and a blockchain network 1206, wherein:

the client 1201 of the first user and the client 1202 of the second user are used as contract signing parties, and a contract relation is established through a contract signing platform 1203;

the monitoring platform 1204 is used for monitoring the performance capability of the first user and acquiring evaluation data of the second user on the performance capability of the first user;

the social platform 1205 obtains the evaluation data and the performance data from the blockchain network 1206, and issues the evaluation data and the performance data in the information issuing platform corresponding to the disclosure authority according to the disclosure authority agreed between the first user and the second user.

The blockchain network 1206 stores various user behavior data generated during the contract relation fulfillment process, and the storage manner may refer to the manner described in the embodiment shown in fig. 7, which is not described in detail here.

In the 90 s of the 20 th century, improvements in a technology could clearly distinguish between improvements in hardware (e.g., improvements in circuit structures such as diodes, transistors, switches, etc.) and improvements in software (improvements in process flow). However, as technology advances, many of today's process flow improvements have been seen as direct improvements in hardware circuit architecture. Designers almost always obtain the corresponding hardware circuit structure by programming an improved method flow into the hardware circuit. Thus, it cannot be said that an improvement in the process flow cannot be realized by hardware physical modules. For example, a Programmable Logic Device (PLD), such as a Field Programmable Gate Array (FPGA), is an integrated circuit whose Logic functions are determined by programming the Device by a user. A digital system is "integrated" on a PLD by the designer's own programming without requiring the chip manufacturer to design and fabricate application-specific integrated circuit chips. Furthermore, nowadays, instead of manually making an integrated Circuit chip, such Programming is often implemented by "logic compiler" software, which is similar to a software compiler used in program development and writing, but the original code before compiling is also written by a specific Programming Language, which is called Hardware Description Language (HDL), and HDL is not only one but many, such as abel (advanced Boolean Expression Language), ahdl (alternate Language Description Language), traffic, pl (core unified Programming Language), HDCal, JHDL (Java Hardware Description Language), langue, Lola, HDL, laspam, hardsradware (Hardware Description Language), vhjhd (Hardware Description Language), and vhigh-Language, which are currently used in most common. It will also be apparent to those skilled in the art that hardware circuitry that implements the logical method flows can be readily obtained by merely slightly programming the method flows into an integrated circuit using the hardware description languages described above.

The controller may be implemented in any suitable manner, for example, the controller may take the form of, for example, a microprocessor or processor and a computer-readable medium storing computer-readable program code (e.g., software or firmware) executable by the (micro) processor, logic gates, switches, an Application Specific Integrated Circuit (ASIC), a programmable logic controller, and an embedded microcontroller, examples of which include, but are not limited to, the following microcontrollers: ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20, and Silicone Labs C8051F320, the memory controller may also be implemented as part of the control logic for the memory. Those skilled in the art will also appreciate that, in addition to implementing the controller as pure computer readable program code, the same functionality can be implemented by logically programming method steps such that the controller is in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Such a controller may thus be considered a hardware component, and the means included therein for performing the various functions may also be considered as a structure within the hardware component. Or even means for performing the functions may be regarded as being both a software module for performing the method and a structure within a hardware component.

The systems, devices, modules or units illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions. One typical implementation device is a computer. In particular, the computer may be, for example, a personal computer, a laptop computer, a cellular telephone, a camera phone, a smartphone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A data processing method based on a block chain comprises the following steps:

based on the contract relation, obtaining user behavior data associated with the contract relation, wherein the user behavior data is generated by the first user or the second user in the process of fulfilling the contract relation, and determining data access authority of the user behavior data, and the data access authority refers to a user range which is determined by negotiation and can access the user behavior data when the contract relation is established between the first user and the second user;

and encrypting the user behavior data by using the processing strategy.

2. The data processing method of claim 1, wherein determining the data access right of the user behavior data based on the contractual relationship comprises:

and determining the data access authority of the user behavior data based on the data source, wherein the data access authority is accessed by both contract-making parties, or accessed by a user establishing an appointed relationship with both contract-making parties or accessed without limitation, and the appointed relationship comprises one or more of a relationship of relatives, a relationship of friends and a relationship of classmates.

3. The data processing method according to claim 1 or 2, wherein obtaining user behavior data associated with the contractual relationship comprises:

4. The data processing method of claim 3, the method further comprising:

sending the fulfillment data to the second user.

5. The data processing method of claim 3, determining data access rights for the user behavior data, comprising:

6. The data processing method of claim 3, determining data access rights for the user behavior data, comprising:

7. The data processing method of claim 1, 2 or 4, wherein obtaining user behavior data associated with the contractual relationship comprises:

8. The data processing method of claim 7, determining data access rights for the user behavior data, comprising:

9. The data processing method of claim 7, determining data access rights for the user behavior data, comprising:

10. The data processing method according to claim 5 or 8, wherein the processing of the user behavior data using the processing policy comprises:

encrypting the performance data/evaluation data by using a private key in the first public-private key pair;

storing the encrypted performance data/assessment data in a blockchain.

11. The data processing method of claim 10, the method further comprising:

12. The data processing method according to claim 6 or 9, wherein the processing of the user behavior data using the processing policy comprises:

encrypting the performance data/evaluation data by using a private key in the second public-private key pair;

storing the encrypted performance data/assessment data in a blockchain.

13. The data processing method of claim 1, wherein determining the contractual relationship established between the first user and the second user comprises:

14. The data processing method of claim 13, the method further comprising:

and storing the contract relation into a block chain.

15. The data processing method of claim 7, the method further comprising:

processing credit data of the first user according to the evaluation data;

and storing the encrypted credit data into the block chain.

16. The data processing method of claim 15, processing credit data of the first user based on the assessment data, comprising:

adjusting the credit value of the first user according to the evaluation data.

17. The data processing method of claim 15, processing credit data of the first user based on the assessment data, comprising:

18. The data processing method of claim 7, the method further comprising:

sending the assessment data to the first user;

and storing the contract relation, the objection data and the evaluation data.

19. The data processing method of claim 1, wherein a designated relationship is pre-established between the second user and the first user, and the designated relationship comprises one or more of a relationship of relativity, a relationship of friends, and a relationship of classmates.

20. A blockchain-based data processing apparatus comprising:

an obtaining unit, configured to obtain, based on the contract relationship, user behavior data associated with the contract relationship, where the user behavior data is generated by the first user or the second user in a process of fulfilling the contract relationship, and determine a data access right of the user behavior data, where the data access right refers to a user range in which the first user and the second user can access the user behavior data and is determined by negotiation when the contract relationship is established between the first user and the second user;

the processing unit is used for determining a processing strategy of the user behavior data according to a preset relation between data access authority and the processing strategy, wherein the processing strategy comprises a processing rule matched with the data access authority; and encrypting the user behavior data by using the processing strategy.

21. The data processing apparatus according to claim 20, wherein the obtaining unit determines the data access right of the user behavior data based on the contractual relationship, and includes:

22. The data processing apparatus according to claim 20 or 21, wherein the acquiring unit acquires user behavior data associated with the contractual relationship, and includes:

23. The data processing device of claim 22, further comprising: a transmitting unit, wherein:

the sending unit sends the fulfillment data to the second user.

24. The data processing device of claim 22, the obtaining unit determining data access rights for the user behavior data, comprising:

25. The data processing device of claim 22, the obtaining unit determining data access rights for the user behavior data, comprising:

26. The data processing apparatus according to claim 20, 21 or 23, wherein the acquiring unit acquires user behavior data associated with the contractual relationship, and includes:

27. The data processing device of claim 26, the obtaining unit determining data access rights for the user behavior data, comprising:

28. The data processing device of claim 26, the obtaining unit determining data access rights for the user behavior data, comprising:

29. The data processing apparatus according to claim 24 or 27, the processing unit processing the user behavior data using the processing policy, comprising:

storing the encrypted performance data/assessment data in a blockchain.

30. The data processing device of claim 29, further comprising: a receiving unit, wherein:

the receiving unit is used for receiving an evaluation data access request sent by the first user, wherein the evaluation data access request comprises the user identifier of the second user and the contractual relationship;

31. The data processing apparatus according to claim 25 or 28, the processing unit processing the user behavior data using the processing policy, comprising:

storing the encrypted performance data/assessment data in a blockchain.

32. The data processing apparatus according to claim 20, wherein the determining unit determines a contractual relationship established between the first user and the second user, including:

33. The data processing device of claim 32, further comprising: a storage unit, wherein:

and the storage unit stores the contract relation into a block chain.

34. The data processing device of claim 26, the processing unit processing credit data of the first user according to the assessment data;

and storing the encrypted credit data into the block chain.

35. The data processing device of claim 34, the processing unit to process credit data of the first user based on the assessment data, comprising:

adjusting the credit value of the first user according to the evaluation data.

36. The data processing device of claim 34, the processing unit to process credit data of the first user based on the assessment data, comprising:

37. The data processing apparatus according to claim 26, said transmission unit transmitting the evaluation data to the first user;

and storing the contract relation, the objection data and the evaluation data.

38. The data processing apparatus of claim 20, wherein a designated relationship is pre-established between the second user and the first user, the designated relationship comprising one or more of a relationship of relativity, a relationship of friends, and a relationship of classmates.

39. A blockchain-based data processing apparatus comprising: a memory and at least one processor, wherein: the memory stores a program, the data processing apparatus is configured to perform, by the at least one processor, the steps of:

determining a contract relation established between a first user and a second user;

determining a processing strategy of the user behavior data according to a preset relation between data access authority and the processing strategy, wherein the processing strategy comprises a processing rule matched with the data access authority; and encrypting the user behavior data by using the processing strategy.