CN106485167B - Credit recording system and method based on block chain - Google Patents
Credit recording system and method based on block chain Download PDFInfo
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- CN106485167B CN106485167B CN201610842749.XA CN201610842749A CN106485167B CN 106485167 B CN106485167 B CN 106485167B CN 201610842749 A CN201610842749 A CN 201610842749A CN 106485167 B CN106485167 B CN 106485167B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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Abstract
The invention discloses a credit recording system and method based on a block chain, comprising the following steps: a plurality of user terminals connected in the block chain for collecting and verifying credit data, wherein each user terminal is provided with: the encryption module is used for carrying out encryption processing on target credit data to be transmitted so as to form encrypted credit data; a communication module for communicating encrypted credit data with a blockchain; and the storage module is used for storing the target credit data of the user terminal and other encrypted credit data transmitted by the block chain. The credit data of the invention has wide sources, independent, reliable and real credit data, greatly reduces the complexity of credit investigation data cleaning and screening, and has flexible and various applicable scenes and strong expandability.
Description
Technical Field
The invention relates to the field of personal credit investigation, in particular to a credit recording system and a method.
Background
The personal credit system is the basis for credit institutions such as commercial banks to develop personal consumption credit business. The individual credit consumption has unique social and economic functions, and the national individual credit consumption is in the basic position and the core function in the consumption system of China, and has important economic effects on improving the living condition of consumers, promoting the realization of commodity value and improving the profit margin of enterprises. Therefore, establishing a perfect personal credit system is an important guarantee for the development of credit economy in China.
With the continuous development of the internet, the information technology level of an enterprise credit investigation institution is higher and higher, and the database-based online service becomes one of the mainstream service forms; the transparency of the credit information of the enterprise is continuously improved, and the credit investigation information environment is more beneficial to the development of the credit investigation industry of the enterprise.
However, the existing internet credit investigation business still has many thunder areas, for example, sensitive personal information cannot be collected, the security and transparency of data are difficult to guarantee, credit data exchange between different financial institutions is difficult, and the like. In addition, although companies such as Tencent Credit and sesame Credit have a large amount of user credit data, the data is not very related to personal loan and loan behaviors, so that the established model is not necessarily accurate and is difficult to be introduced by mainstream financial institutions.
With the increase of the amount of data related to credit and the development of corresponding big data technology, the credit investigation industry can detect the risk expression and the credit value of the data through mining and analyzing mass data, but in practical application, the larger the data amount is, the more the auditing dimensionality is, the more the data noise is caused, and the more the model is distorted.
In addition, there is a great deal of uncertainty as to whether the personal credit-investigation business developed by a private enterprise can successfully access the core data (such as payroll, social security records, credit card records, loan records, etc.) of the credit report at the central bank. Many P2P platforms have to make inquiries in person because they cannot access credit data at the central row, which increases the cost of the enterprise. User information mastered by the internet such as Tencent and Ali is effective only in the aspect of network marketing promotion, but the data has limited use in the verification of financial data, and particularly the effect on credit rating is difficult to embody. Meanwhile, due to the competitive relationship, the sharing and exchange of data among a plurality of credit investigation companies are not practical, and the credibility of credit investigation data is limited by the factors.
Therefore, the credit record mode based on the existing internet environment has many problems and undesirable situations, and the development of the block chain technology can solve the problem of the credibility of the data to a certain extent, so that the credibility of the credit report is further improved.
blockchain techniques generally refer to techniques for collectively maintaining a reliable database through decentralization and distrust. In fact, the blockchain technology is not a single and completely new technology, but is the result of the integration of various existing technologies (such as encryption algorithm, P2P file transmission, etc.), and these technologies are combined with the database skillfully to form a new data recording, transferring, storing and presenting way. In brief, the block chain technique is a technique in which people participate in recording and storing information together. In the past, people have handed the work of data recording and storage to a centralized mechanism, and the blockchain technology allows everyone in the system to participate in the data recording and storage. The blockchain technology constructs an ad hoc network of P2P by using a distributed collective operation method under a distributed peer-to-peer network without a central control point. Through a complex verification mechanism, the block chain database can keep integrity, continuity and consistency, the integrity of the block chain cannot be changed even if part of participants make false, and data in the block chain cannot be tampered. The block chain technique redefines the way credits are generated in the network: in the system, participants do not need to know background information of other people and guarantee or guarantee by a third-party organization, the block chain technology ensures that the system records, transmits and stores the activity of value transfer, and the final result is certain to be credible.
Chinese patent application No. 201610070917.8 discloses a block chain-based method for establishing credit records by multiple parties, wherein roles of the whole credit system are divided into supporting a third party and a data owner, the supporting third party is responsible for building a basic communication system and making and realizing technical standards, and the data owner provides the credit records. The method based on the block chain can completely record information and cannot change the information, the authenticity of credit records is ensured, the construction of joint participation of multiple parties is completed through third-party links, a data provider does not need to provide original data in advance, and data interaction is performed when data is needed. However, this method has the following disadvantages and shortcomings: (1) the system formed by the method is not a distributed de-centering system; (2) the data provider is separated from the function of supporting a third party, and the effect of jointly storing data by multiple nodes cannot be realized.
therefore, it is an urgent need in the industry to provide a system and method for credit record based on block chain, which can facilitate acquisition and collection and ensure authenticity and reliability of the credit record.
disclosure of Invention
The invention aims to provide a block chain-based credit recording system and method, which can not only ensure the accuracy, transparency and reliability of recorded credit information, but also facilitate a demand party to collect required credit information.
A first object of the present invention is to provide a block chain-based credit recording system, including: a plurality of user terminals connected in the block chain for collecting and verifying credit data, wherein each user terminal is provided with: the encryption module is used for carrying out encryption processing on target credit data to be transmitted so as to form encrypted credit data; a communication module for communicating encrypted credit data with a blockchain; and the storage module is used for storing the target credit data of the user terminal and other encrypted credit data transmitted by the block chain.
Optionally, the method further comprises: a verification module for sending a request for verifying whether the encrypted credit data is changed to all other online user terminals connected to the blockchain; and a discrimination module for discriminating whether the encrypted credit data is changed.
Optionally, the method further comprises: and the evaluation report module is used for generating a credit evaluation report of the corresponding user terminal according to the encrypted credit data recorded by the block chain.
optionally, the method further comprises: the protocol module is used for establishing a data transceiving protocol with the block chain; and the interface module is used for the block chain and at least one user terminal to call the credit recording system based on the block chain.
Alternatively, the operating parties of the user terminal include individuals, schools, businesses, government agencies, financial institutions, and transportation agencies.
Preferably, the user terminal connected to the blockchain may be a mobile phone, a PC (personal computer), a smart terminal, or a cloud point.
A second object of the present invention is to provide a block chain-based credit recording method, which includes: the specific user terminal encrypts the target credit data to obtain encrypted credit data of the target credit data; the specific user terminal writes the encrypted credit data into the block chain, and utilizes the consensus process of the block chain to carry out overall network distribution; and other user terminals connected to the blockchain receive and store the encrypted credit data.
Optionally, the encrypted credit data includes a digital signature of the specific user terminal, a Hash value of the target credit data, and a timestamp of the encryption processing of the target credit data.
Optionally, the method further comprises: other user terminals connected to the blockchain verify that the encrypted credit data has changed before invoking the encrypted credit data for a particular user terminal.
Optionally, the method further comprises: and generating a credit evaluation report of the corresponding user terminal according to the encrypted credit data recorded in the block chain.
Optionally, the target credit data is configured to include at least one of: examination score sheet information, contest winning information, food process formula information, production safety information, commodity transaction information, personal drunk driving information, driving violation information, personal debt information and road traffic light information.
The invention has the beneficial effects that: (1) the credit data has wide sources, is not influenced by government membership, is not attached to any unit or person, is free from borrowers, lenders and investors, is more independent and reliable, and greatly reduces the complexity of credit investigation data cleaning and screening; (2) the credit data related to privacy contents such as personal property, deposit and the like are stored after being encrypted and digitally signed, and can be evaluated only after the personal identity verification of the user terminal is passed, and other people cannot know the data of the user terminal, so that the privacy of the data is ensured; (3) the credit data is guaranteed to be not falsifiable by adopting a cryptographic method, any credit data registered on the block chain is attached with a time stamp, and people cannot falsifie the registered credit data, so that the counterfeiting of the credit data is prevented, the authenticity of the credit data is guaranteed, and a reliable data base is provided for credit construction; (4) the credit data acquired by each user terminal connected to the block chain are the same, so that a data island is eliminated, any person and any organization can acquire data from the block chain, and the credit data has equal rights and fair rights among people and organizations, so that the reliability of credit data is enhanced; (5) the whole system is low in cost, flexible and diverse in applicable scenes and strong in expandability.
Drawings
fig. 1 is a schematic diagram of the architecture of a block chain-based credit recording system according to the present invention.
Fig. 2 is a flowchart illustrating a block chain-based credit recording method according to the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring first to fig. 1, as a non-limiting example, the block chain based credit recording system of the present invention includes: the operation parties of the user terminals can comprise individuals, schools, enterprises, government agencies, financial institutions, traffic agencies and the like, and the user terminals transmit respective credit data such as examination score list information, competition winning information, food process formula information, production safety information, commodity transaction information, personal drunk driving information, driving violation information, personal debt information, road traffic light information and the like to the blockchain. In fig. 1, the user terminals are exemplarily shown as a smart phone, a computer, and a cloud providing a blockchain cloud service.
Each user terminal is installed with an encryption module 100, a communication module 200, a storage module 300, a protocol module 400, an interface module 500, an authentication module 600, and a discrimination module 700.
The encryption module 100 encrypts the target credit data to be transmitted, thereby forming encrypted credit data. The communication module 200 is responsible for transmitting encrypted credit data with the blockchain. The storage module 300 stores the target credit data of the user terminal itself and other encrypted credit data transmitted by the blockchain. The protocol module 400 may establish a data transceiving protocol with the blockchain. The interface module 500 is used for the blockchain and at least one user terminal to invoke the credit recording system based on the blockchain of the present invention.
Thus, the user terminal completes transmission of the encrypted credit data corresponding to the target credit data, and other user terminals connected to the block chain complete storage of the encrypted credit data. When the target credit data needs to be called, the verification module 600 is used to send a request for verifying whether the encrypted credit data is changed to all other online user terminals connected to the block chain, and the determination module 700 installed on other user terminals can determine whether the encrypted credit data is changed.
as an alternative embodiment, each user terminal is further installed with an evaluation report module 800, which is configured to generate a credit evaluation report of the corresponding user terminal according to the encrypted credit data recorded in the blockchain.
Therefore, by using the credit recording system based on the block chain, students as user terminals connected to the block chain can store the score sheets verified by schools on the block chain, and then the score sheets can not be falsified, and meanwhile, the winning certificates acquired by the students in the past can be stored on the block chain to be used as the basis of credit evaluation reports. The credit recording system based on the block chain can also be applied to a food industry chain, and an enterprise connected with a user terminal on the block chain can store information such as food processes, formulas, safety measures, transaction links and the like on the block chain, and then the information can not be tampered to be used as a basis for ensuring food safety. Certainly, the application field can also touch a government credit database, and data of personal illegal behaviors such as drunk driving, violation, debt and the like are collected to a block chain and permanently stored as the basis of a personal credit evaluation report. The traffic light information at a certain moment of a certain traffic light can be collected to the block chain, and the video information stored in the block chain can be called in a judicial procedure for identifying violation and can be used as evidence for confirming traffic violation at that time.
Based on the same idea, the invention also provides a method for transmitting data by using the data transmission system based on the block chain. As shown in fig. 2, in step S10, the specific user terminal encrypts the target credit data and acquires encrypted credit data of the target credit data.
In step S10, the specific user terminal encrypts the target credit data to form encrypted credit data, where the encrypted credit data includes the digital signature of the specific user terminal, the Hash value of the target credit data, and the timestamp of the encrypted target credit data, so as to ensure the privacy and security of the target credit data.
in step S20, the specific user terminal writes the encrypted credit data into the block chain, and performs the network-wide distribution using the consensus process of the block chain.
In step S30, other user terminals connected to the blockchain receive and store the encrypted credit data.
When the target credit data of the specific user terminal needs to be called, each user terminal connected to the blockchain can be used as a verification node, so that before the encrypted credit data of the specific user terminal is called, other user terminals connected to the blockchain verify whether the encrypted credit data is changed, and when 80% of verification feedback information shows that the encrypted credit data is not tampered, the target credit data is judged to be authentic.
As an alternative embodiment, since the credit data stored on the blockchain is authentic and has never been tampered with, this provides data support for credit evaluation, and a credit evaluation report of the corresponding user terminal can be generated based on the encrypted credit data recorded in the blockchain. The user person or the enterprise can inquire the credit evaluation report of the user person or the enterprise from the block chain as the basis of personal credit.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (7)
1. A blockchain based credit recording system comprising: a plurality of connect in the block chain be used for gathering with the user terminal who verifies the credit data, its characterized in that installs on every user terminal:
The encryption module is used for carrying out encryption processing on target credit data to be transmitted so as to form encrypted credit data;
A communication module for communicating the encrypted credit data with a blockchain;
A storage module for storing the target credit data of the user terminal itself and other encrypted credit data transmitted by the block chain;
A verification module for sending a request for verifying whether the encrypted credit data is changed to all other online user terminals connected to the blockchain;
A determination module for determining whether the encrypted credit data has changed;
The evaluation report module is used for generating a credit evaluation report of the corresponding user terminal according to the encrypted credit data recorded by the block chain;
The protocol module is used for establishing a data transceiving protocol with the block chain; and
an interface module for the blockchain and at least one user terminal to invoke the blockchain based credit recording system.
2. The blockchain-based data transmission system of claim 1, wherein the operating parties of the user terminal include individuals, schools, businesses, government agencies, financial institutions, and transportation agencies.
3. A block chain-based credit recording method, comprising:
A specific user terminal encrypts target credit data to obtain encrypted credit data of the target credit data;
The specific user terminal writes the encrypted credit data into a block chain, and utilizes the consensus process of the block chain to carry out overall network distribution; and
Other user terminals connected to the blockchain receive and store the encrypted credit data.
4. The blockchain-based data transmission method according to claim 3, wherein the encrypted credit data includes a digital signature of the specific user terminal, a Hash value of the target credit data, and a time stamp of the encryption process of the target credit data.
5. the block chain based data transmission method according to claim 4, further comprising: other user terminals connected to the blockchain verify whether the encrypted credit data has changed before invoking the encrypted credit data for the particular user terminal.
6. The block chain based data transmission method according to claim 3, further comprising: and generating a credit evaluation report of the corresponding user terminal according to the encrypted credit data recorded in the block chain.
7. The blockchain-based data transmission method according to claim 3 to 6, wherein the target credit data is set to include at least one of the following information: examination score sheet information, contest winning information, food process formula information, production safety information, commodity transaction information, personal drunk driving information, driving violation information, personal debt information and road traffic light information.
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| CN201610842749.XA CN106485167B (en) | 2016-09-22 | 2016-09-22 | Credit recording system and method based on block chain |
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| CN201610842749.XA CN106485167B (en) | 2016-09-22 | 2016-09-22 | Credit recording system and method based on block chain |
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