WO2021219038A1 - 信用评估方法、信用评估系统及可读存储介质 - Google Patents

信用评估方法、信用评估系统及可读存储介质 Download PDF

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WO2021219038A1
WO2021219038A1 PCT/CN2021/090713 CN2021090713W WO2021219038A1 WO 2021219038 A1 WO2021219038 A1 WO 2021219038A1 CN 2021090713 W CN2021090713 W CN 2021090713W WO 2021219038 A1 WO2021219038 A1 WO 2021219038A1
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credit
evaluation
score
credit score
blockchain
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PCT/CN2021/090713
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English (en)
French (fr)
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梁伟道
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深圳前海星际同辉科技有限公司
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Publication of WO2021219038A1 publication Critical patent/WO2021219038A1/zh

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q40/00Finance; Insurance; Tax strategies; Processing of corporate or income taxes
    • G06Q40/02Banking, e.g. interest calculation or account maintenance
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/27Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60Protecting data
    • G06F21/602Providing cryptographic facilities or services
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60Protecting data
    • G06F21/64Protecting data integrity, e.g. using checksums, certificates or signatures

Definitions

  • This application relates to the technical field of credit evaluation, in particular to a credit evaluation method, a credit evaluation system, and a computer-readable storage medium.
  • the related credit evaluation method is to collect relevant data through a third-party evaluation agency, and then generate and publish a credit evaluation score based on these records. As the evaluator of the third-party evaluation agency enters the collected data into the credit evaluation system, it may appear Incorrect data entry, which leads to inaccurate credit evaluation results, has the disadvantage of low accuracy.
  • the main purpose of this application is to provide a credit evaluation method, a credit evaluation system, and a computer-readable storage medium, aiming to achieve the effect of improving the accuracy of credit evaluation results.
  • this application provides a credit evaluation method, which includes the following steps:
  • the second credit score is sent to other blockchain nodes, so that all the blockchain nodes update the credit score of the evaluation object to the second credit score.
  • the step of updating the current credit score of the evaluation object according to the first credit score to obtain the second credit score includes:
  • the current credit score of the evaluation object is updated according to the first credit score and the score coefficient to obtain a second credit score.
  • the step of sending the second credit score to other blockchain nodes includes:
  • the encrypted data is stored in association with the evaluation object, and the encrypted data is sent to other blockchain nodes.
  • the method further includes:
  • the method further includes:
  • the second credit score is output.
  • the credit evaluation method further includes:
  • the credit evaluation method further includes:
  • the step of determining the first credit score of the evaluation object according to the credit record is executed.
  • the credit evaluation method before the step of obtaining the credit record of the evaluation object sent by the blockchain node, the credit evaluation method further includes:
  • this application also proposes a credit evaluation system, the credit evaluation system comprising: a memory, a processor, and a credit evaluation program stored on the memory and running on the processor, The credit evaluation program, when executed by the processor, implements the steps of the credit evaluation method described above.
  • this application also proposes a computer-readable storage medium with a credit evaluation program stored on the computer-readable storage medium, and when the credit evaluation program is executed by a processor, the credit evaluation as described above is realized. Method steps.
  • a credit evaluation method, a credit evaluation system, and a computer-readable storage medium proposed in the embodiments of this application obtain the credit record of the evaluation object sent by the first blockchain node, and then determine the first credit score corresponding to the evaluation object according to the credit record , And update the current credit score of the evaluation object according to the first credit score to obtain the second credit score. Due to the immutability of blockchain data, this solution uses the credit records obtained by the blockchain nodes, and then evaluates the credit records according to the credit records. The subject conducts credit evaluation, avoiding inaccurate credit evaluation results due to data entry errors, thereby achieving the effect of improving the accuracy of credit evaluation results.
  • FIG. 1 is a schematic diagram of the hardware architecture of a terminal involved in a solution of an embodiment of the present application
  • FIG. 2 is a schematic flowchart of the first embodiment of the credit evaluation method for applying
  • FIG. 3 is a schematic flowchart of a third embodiment of the credit evaluation method for applying
  • FIG. 4 is a schematic flowchart of a fourth embodiment of the credit evaluation method for applying
  • FIG. 5 is a schematic flowchart of a fifth embodiment of the credit evaluation method for applying
  • Fig. 6 is a schematic flowchart of a seventh embodiment of a credit evaluation method for an application.
  • the existing credit evaluation method is to collect relevant data through a third-party evaluation agency, and then generate and publish credit evaluation scores based on these records. As the evaluators of the third-party evaluation agency enter the collected data into the credit evaluation system, they may Data entry errors occur, leading to inaccurate credit evaluation results and the disadvantage of low accuracy.
  • the embodiments of the present application propose a credit evaluation method, a credit evaluation system, and a computer-readable storage medium, wherein the credit evaluation method mainly includes the following steps:
  • the second credit score is sent to other blockchain nodes, so that all the blockchain nodes update the credit score of the evaluation object to the second credit score.
  • this solution uses the credit records obtained by blockchain nodes, and then performs credit evaluation on the evaluation object based on the credit records, avoiding the inaccurate credit evaluation results due to data entry errors. The effect of improving the accuracy of credit evaluation results has been achieved.
  • FIG. 1 is a schematic diagram of the hardware architecture of the terminal involved in the solution of the embodiment of the present application.
  • the terminal is a terminal device corresponding to any node in the blockchain, and the terminal may be a terminal device such as a PC.
  • the terminal may include: a processor 1001, such as a CPU, a user interface 1003, a network interface 1004, a memory 1005, and a communication bus 1002.
  • the communication bus 1002 is used to implement connection and communication between these components.
  • the user interface 1003 may include a display screen (Display), an input unit such as a keyboard, etc., and the optional user interface 1003 may also include a standard wired interface and a wireless interface.
  • the network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface).
  • the memory 1005 can be a high-speed RAM memory or a stable memory (non-volatile memory), such as disk storage.
  • the memory 1005 may also be a storage device independent of the aforementioned processor 1001.
  • the hardware architecture of the terminal shown in FIG. 1 does not constitute a limitation on the terminal, and may include more or fewer components than shown in the figure, or a combination of certain components, or different component arrangements.
  • the memory 1005 which is a computer storage medium, may include an operating system, a network communication module, a user interface module, and a credit evaluation program.
  • the network interface 1004 is mainly used to connect to a background server and perform data communication with the background server; the processor 1001 can be used to call a credit evaluation program stored in the memory 1005 and perform the following operations:
  • the second credit score is sent to other blockchain nodes, so that all the blockchain nodes update the credit score of the evaluation object to the second credit score.
  • the processor 1001 may be used to call a credit evaluation program stored in the memory 1005, and also perform the following operations:
  • the current credit score of the evaluation object is updated according to the first credit score and the score coefficient to obtain a second credit score.
  • the processor 1001 may be used to call a credit evaluation program stored in the memory 1005, and also perform the following operations:
  • the encrypted data is stored in association with the evaluation object, and the encrypted data is sent to other blockchain nodes.
  • the processor 1001 may be used to call a credit evaluation program stored in the memory 1005, and also perform the following operations:
  • the processor 1001 may be used to call a credit evaluation program stored in the memory 1005, and also perform the following operations:
  • the second credit score is output.
  • the processor 1001 may be used to call a credit evaluation program stored in the memory 1005, and also perform the following operations:
  • the processor 1001 may be used to call a credit evaluation program stored in the memory 1005, and also perform the following operations:
  • the step of determining the first credit score of the evaluation object according to the credit record is executed.
  • the processor 1001 may be used to call a credit evaluation program stored in the memory 1005, and also perform the following operations:
  • the credit evaluation method includes the following steps:
  • Step S10 Obtain the credit record of the evaluation object sent by the first blockchain node, and determine the first credit score of the evaluation object according to the credit record;
  • Step S20 Update the current credit score of the evaluation object according to the first credit score to obtain a second credit score
  • Step S30 Send the second credit score to other blockchain nodes, so that all blockchain nodes update the credit score of the evaluation object to the second credit score.
  • the blockchain node is a computer in the blockchain network where the node is located, for example, a smart phone, a desktop computer; the evaluation object is usually an entire enterprise, and the evaluation object is undergoing business registration At that time, the corresponding credit record book is created on the blockchain platform.
  • the credit record may include: the evaluation object, the credit event of the evaluation object, and the first credit score corresponding to the credit event; the first credit score is the credit score generated by the institution corresponding to the first blockchain node according to the credit event; The current credit score is the sum of the first credit score corresponding to each credit event of the evaluation object, and is recorded in the credit record book corresponding to the evaluation object; the second credit score is the latest credit score of the evaluation object, according to the first credit score The score and the current credit score are obtained.
  • a blockchain node can be connected to multiple sub-nodes, where the blockchain node can be a terminal device corresponding to a certain enterprise or an organization.
  • the processor receives the credit record sent by the first blockchain node, obtains the evaluation object recorded in the credit record, and determines the credit record book corresponding to the evaluation object, and then saves the received credit record in the credit record book corresponding to the evaluation object .
  • the processor obtains the first credit score recorded in the credit record, and obtains the current credit score of the evaluation object from the credit record book, calculates the second credit score according to the first credit score and the current credit score, and then saves the second credit score
  • this solution uses the credit record obtained by the blockchain node, and then performs credit evaluation on the evaluation object based on the credit record, avoiding data entry errors. Circumstances that lead to inaccurate credit evaluation results, thereby achieving the effect of improving the accuracy of credit evaluation results.
  • the step S20 further includes the following steps:
  • Step S21 Determine the score coefficient corresponding to the first credit score according to the first blockchain node
  • Step S22 Update the current credit score of the evaluation object according to the first credit score and the scoring coefficient to obtain a second credit score.
  • the first blockchain node is the node that generates the first credit score
  • the scoring coefficient is the scoring coefficient of an enterprise or an institution corresponding to the blockchain node, and is used to obtain credit events
  • the actual credit score of the enterprise, and the scoring coefficient increases with the increase of the social credibility of the institution or enterprise.
  • the scoring coefficient is 0.5.
  • the scoring coefficient is 1, and when the institution corresponding to the blockchain node is a bank, the scoring coefficient is 2; in the institution corresponding to the blockchain node For government agencies, the score factor is 3.
  • the processor obtains the node identifier of the first blockchain node, obtains the scoring coefficient corresponding to the node identifier in the memory, and multiplies the first credit score and the scoring coefficient to obtain the actual credit score, and then compares the actual credit score with the current credit score Plus to get the second credit score.
  • the scoring coefficient is set according to the type of enterprise or institution corresponding to the blockchain node, and then the actual credit score is calculated according to the scoring coefficient, and the second credit score is updated according to the actual credit score.
  • a low-reliability enterprise or institution conducts malicious scoring, it can reduce the impact on the second credit score of the evaluation object, thereby achieving the effect of improving the credibility of the credit evaluation result.
  • the step S30 further includes the following steps:
  • Step S31 Obtain the first public key of the evaluation object
  • Step S32 According to the first public key, encrypt the update record of the credit score of the evaluation object to obtain encrypted data;
  • Step S33 Store the encrypted data in association with the evaluation object, and send the encrypted data to other blockchain nodes.
  • the update record may include the update time, the second credit score, the actual credit score, and the block identifier of the credit record; the first public key is the public key of the evaluation object.
  • the processor obtains the first public key corresponding to the evaluation object in the memory, then obtains the update record of the evaluation object, encrypts the update record according to the first public key, obtains the encrypted data of the update record of the evaluation object, and then saves the encrypted data in The credit record book corresponding to the evaluation object.
  • the processor can also obtain the node private key of the node to digitally sign the encrypted data, and then send the encrypted data and the corresponding digital signature to other blockchain nodes.
  • Step S34 Receive a credit score query request, and generate a decryption request of encrypted data corresponding to the query request according to the query request;
  • Step S35 Send the decryption request to a second blockchain node, where the second blockchain node includes the first private key of the encrypted data;
  • Step S36 Receive the decrypted data fed back by the second blockchain node, and output the decrypted data.
  • the credit score query request may include: query object, evaluation object, and query condition; the second blockchain node is the terminal device corresponding to the evaluation object; the first private key is the evaluation object The private key of is stored in the memory of the second blockchain node; the decrypted data can include the second credit score of the evaluation object, or it can be an update record of the second credit score.
  • the processor receives the credit score query request, generates a decryption request according to the query object and query conditions of the query request, determines the second blockchain node corresponding to the evaluation object, and then sends the decryption request to the second blockchain node so that the second blockchain node
  • the blockchain judges whether to agree to the decryption according to the decryption request, and when the decryption is approved, the encrypted data corresponding to the query condition is decrypted to obtain the decrypted data, and then the decrypted data is fed back to the blockchain node that sent the decryption request.
  • the processor receives the decrypted data fed back by the second blockchain node, and outputs the decrypted data.
  • step S30 the following steps are further included after the step S30:
  • Step S40 receiving a credit score query request, and verifying the authority of the query object corresponding to the query request;
  • Step S50 After the authorization of the query object is successfully verified, output the second credit score.
  • the query request for the credit score may include: query object, evaluation object, and query condition.
  • the processor receives the credit score query request, obtains the query object in the query request, and verifies the query object's authority. After the query object's authority verification succeeds, it outputs the second credit score corresponding to the query condition; when the query object's authority verification fails When, output the prompt message that the query failed.
  • the processor may determine whether there is authorization information corresponding to the query object in the memory, and when the authorization information corresponding to the query object exists in the memory, it is determined that the authority verification of the query object is successful; in the memory When there is no authorization information corresponding to the query object, it is determined that the authorization verification of the query object has failed.
  • the processor can also generate an authorization request according to the query object, and then send the authorization request to the blockchain node corresponding to the evaluation object, and upon receiving the consent authorization response sent by the blockchain node, determine that the authorization verification of the query object is successful; It is assumed that the authorization authorization response sent by the blockchain node is not received within the time, or when the authorization authorization response not approved by the blockchain node is received, it is determined that the authorization verification of the query object has failed.
  • Step S60 receiving a credit score query request
  • Step S70 When the blockchain node corresponding to the query request is a member of the alliance blockchain, output the second credit score.
  • the query request for the credit score may include: a query object, an evaluation object, and a query condition; the query object may be a node identifier.
  • the processor receives the credit score query request, obtains the node identifier in the query request, obtains the blockchain node identifier of the blockchain network where the evaluation object is located in the memory, and determines whether there is a blockchain identifier consistent with the node identifier. When there is a blockchain identifier consistent with the node identifier, it is determined that the query object is a member of the alliance blockchain, and then the second credit score corresponding to the query condition is obtained, and the second credit score is output; if there is no consistent with the node identifier When identifying the blockchain, it is determined that the query object is not a member of the alliance blockchain, and a prompt message indicating that the query fails is output.
  • the step S10 further includes the following steps:
  • Step S11 Obtain the credit record of the evaluation object sent by the first blockchain node
  • Step S12 Obtain a second public key corresponding to the first blockchain node
  • Step S13 verifying the digital signature of the credit record according to the second public key
  • Step S14 When the verification is passed, the step of determining the first credit score of the evaluation object according to the credit record is executed.
  • the second public key is the public key of the first blockchain node and is stored in the memory of the local node.
  • the processor receives the credit record of the evaluation object sent by the first blockchain node, then obtains the node identifier of the first blockchain node, and obtains the second public key corresponding to the node identifier in the memory; obtains the digital signature in the credit record, and Hash value, decrypt the digital signature according to the second public key to obtain verification data, and compare the verification data with the hash value.
  • the verification data and the hash value are consistent, it is determined that the verification is passed, and then the first credit score in the credit record is obtained; when the verification data and the hash value are consistent, it is determined that the verification is not passed, and then the credit record is discarded.
  • the digital signature of the credit record is verified, and only when the verification is passed, the credit evaluation is performed on the evaluation object based on the credit record, which avoids the situation of performing credit evaluation based on the wrong credit record.
  • the effect of improving the accuracy of credit evaluation results has been achieved.
  • step S10 the following steps are further included before the step S10:
  • the credit event may include time, event occurrence object, event description, and event type;
  • the processor receives the credit event, obtains the event type in the credit event, obtains the first credit score corresponding to the event type in the memory, and then takes the event occurrence object as the evaluation object, and then generates the credit event of the evaluation object according to the time and the description of the event, Finally, a credit record is generated according to the evaluation object, the credit event of the evaluation object, and the first credit score.
  • the processor When the processor does not obtain the first credit score corresponding to the event type, it outputs prompt information that the first credit score cannot be obtained, so that the user can input the first credit score corresponding to the credit event according to the prompt information.
  • the processor receives the first credit score, associates the first credit score and the event type, and stores it in the memory, and then generates a credit record according to the evaluation object, the credit event of the evaluation object, and the first credit score.
  • the processor hashes the credit record to obtain the hash value of the credit record, and then obtains the private key of the blockchain node, encrypts the hash value of the credit record according to the private key, and obtains the digital signature of the credit record, and then The credit record and the corresponding digital signature are sent to other blockchain nodes.
  • each blockchain node can perform a credit evaluation on the evaluation object based on the credit record, avoiding the data fraud of a single credit evaluation node, thereby improving the reliability of the credit evaluation results. Reliability.
  • an embodiment of the present application also proposes a credit evaluation system.
  • the credit evaluation system includes a memory, a processor, and a credit evaluation program that is stored on the memory and can run on the processor.
  • the credit evaluation program When executed by the processor, the steps of the credit evaluation method described in the above embodiments are realized.
  • an embodiment of the present application also proposes a computer-readable storage medium with a credit evaluation program stored on the computer-readable storage medium, and when the credit evaluation program is executed by a processor, the credit evaluation described in each of the above embodiments is implemented. Method steps.

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Abstract

一种信用评估方法,包括以下步骤:获取第一区块链节点发送的评估对象的信用记录,根据所述信用记录确定所述评估对象的第一信用评分(S10);根据所述第一信用评分对所述评估对象的当前信用评分进行更新得到第二信用评分(S20);将所述第二信用评分发送至其他的区块链节点,以使所有的区块链节点将所述评估对象的信用评分更新为所述第二信用评分(S30)。该方法达成了提高信用评估结果的准确率的效果。

Description

信用评估方法、信用评估系统及可读存储介质
本申请要求2020年4月30日申请的,申请号为202010370381.8,名称为“信用评估方法、信用评估系统及可读存储介质”的中国专利申请的优先权,在此将其全文引入作为参考。
技术领域
本申请涉及信用评估技术领域,尤其涉及信用评估方法、信用评估系统及计算机可读存储介质。
背景技术
随着社会经济的发展,企业信用往往会与企业形象绑定,成为企业的一种无形资产。相关的信用评估方法是通过第三方评估机构自行收集相关数据,然后根据这些记录生成信用评估评分并发布,由于第三方评估机构的评估人员在将收集到的数据录入信用评估系统时,可能会出现数据录入错误的情况,从而导致信用评估结果不准确,存在准确率较低的缺点。
技术问题
本申请的主要目的在于提供一种信用评估方法、信用评估系统及计算机可读存储介质,旨在达成提高信用评估结果的准确率的效果。
技术解决方案
为实现上述目的,本申请提供一种信用评估方法,所述信用评估方法包括以下步骤:
获取第一区块链节点发送的评估对象的信用记录,根据所述信用记录确定所述评估对象的第一信用评分;
根据所述第一信用评分对所述评估对象的当前信用评分进行更新得到第二信用评分;
将所述第二信用评分发送至其他的区块链节点,以使所有的区块链节点将所述评估对象的信用评分更新为所述第二信用评分。
在一实施例中,所述根据所述第一信用评分对所述评估对象的当前信用评分进行更新得到第二信用评分的步骤包括:
根据所述第一区块链节点确定所述第一信用评分对应的评分系数;
根据所述第一信用评分以及所述评分系数对所述评估对象的当前信用评分进行更新得到第二信用评分。
在一实施例中,所述将所述第二信用评分发送至其他的区块链节点的步骤包括:
获取所述评估对象的第一公钥;
根据所述第一公钥,对所述评估对象的信用评分的更新记录进行加密得到加密数据;
将所述加密数据与所述评估对象进行关联存储,并将所述加密数据发送至其他的区块链节点。
在一实施例中,所述将所述加密数据发送至其他的区块链节点的步骤之后,还包括:
接收信用评分的查询请求,并根据所述查询请求生成所述查询请求对应的加密数据的解密请求;
向第二区块链节点发送所述解密请求,所述第二区块链节点包括所述加密数据的第一私钥;
接收所述第二区块链节点反馈的解密数据,并输出所述解密数据。
在一实施例中,所述将所述第二信用评分发送至其他的区块链节点的步骤之后,还包括:
接收信用评分的查询请求,验证所述查询请求对应的查询对象的权限;
在所述查询对象的权限验证成功后,输出所述第二信用评分。
在一实施例中,所述将所述第二信用评分发送至其他的区块链节点的步骤之后,所述信用评估方法还包括:
接收信用评分的查询请求;
在所述查询请求对应的区块链节点为联盟区块链中的成员时,输出所述第二信用评分。
在一实施例中,所述获取区块链节点发送的评估对象的信用记录的步骤之后,所述信用评估方法还包括:
获取所述第一区块链节点对应的第二公钥;
根据所述第二公钥对所述信用记录的数字签名进行验证;
在验证通过时,执行所述根据所述信用记录确定所述评估对象的第一信用评分的步骤。
在一实施例中,所述获取区块链节点发送的评估对象的信用记录的步骤之前,所述信用评估方法还包括:
接收信用事件,并获取所述信用事件对应的信用事件类型;
获取所述信用事件类型对应的第一信用评分;
根据所述信用事件以及所述第一信用评分生成信用记录,并将所述信用记录发送至其他的区块链节点。
此外,为实现上述目的,本申请还提出了一种信用评估系统,所述信用评估系统包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的信用评估程序,所述信用评估程序在被处理器执行时实现如上述的信用评估方法的步骤。
此外,为实现上述目的,本申请还提出一种计算机可读存储介质,所述计算机可读存储介质上存储有信用评估程序,所述信用评估程序被处理器执行时实现如上所述的信用评估方法的步骤。
有益效果
本申请实施例提出的一种信用评估方法、信用评估系统及计算机可读存储介质,获取第一区块链节点发送的评估对象的信用记录,然后根据信用记录确定评估对象对应的第一信用评分,并根据第一信用评分对评估对象的当前信用评分进行更新得到第二信用评分,由于区块链数据的不可篡改性,本方案通过区块链节点获取的信用记录,然后根据信用记录对评估对象进行信用评估,避免了因为数据录入错误而导致信用评估结果不准确的情况,从而达成了提高信用评估结果准确率的效果。
附图说明
图1是本申请实施例方案涉及的终端的硬件架构示意图;
图2为本申请信用评估方法第一实施例的流程示意图;
图3为本申请信用评估方法第三实施例的流程示意图;
图4为本申请信用评估方法第四实施例的流程示意图;
图5为本申请信用评估方法第五实施例的流程示意图;
图6为本申请信用评估方法第七实施例的流程示意图。
本申请目的的实现、功能特点及优点将结合实施例,参照附图做进一步说明。
本发明的实施方式
应当理解,此处所描述的具体实施例仅仅用以解释本申请,并不用于限定本申请。
现有的信用评估方法是通过第三方评估机构自行收集相关数据,然后根据这些记录生成信用评估评分并发布,由于第三方评估机构的评估人员在将收集到的数据录入信用评估系统时,可能会出现数据录入错误的情况,从而导致信用评估结果不准确,存在准确率较低的缺点。
为解决上述缺陷,本申请实施例提出一种信用评估方法、信用评估系统及计算机可读存储介质,其中,所述信用评估方法主要包括以下步骤:
获取第一区块链节点发送的评估对象的信用记录,根据所述信用记录确定所述评估对象的第一信用评分;
根据所述第一信用评分对所述评估对象的当前信用评分进行更新得到第二信用评分;
将所述第二信用评分发送至其他的区块链节点,以使所有的区块链节点将所述评估对象的信用评分更新为所述第二信用评分。
由于区块链数据的不可篡改性,本方案通过区块链节点获取的信用记录,然后根据信用记录对评估对象进行信用评估,避免了因为数据录入错误而导致信用评估结果不准确的情况,从而达成了提高信用评估结果准确率的效果。
如图1所示,图1是本申请实施例方案涉及的终端的硬件架构示意图。
所述终端为区块链中任一节点对应的终端设备,所述终端可以是PC机等终端设备。
如图1所示,该终端可以包括:处理器1001,例如CPU,用户接口1003,网络接口1004,存储器1005,通信总线1002。其中,通信总线1002用于实现这些组件之间的连接通信。用户接口1003可以包括显示屏(Display)、输入单元比如键盘等,可选用户接口1003还可以包括标准的有线接口、无线接口。网络接口1004可选的可以包括标准的有线接口、无线接口(如WI-FI接口)。存储器1005可以是高速RAM存储器,也可以是稳定的存储器(non-volatile memory),例如磁盘存储器。存储器1005可选的还可以是独立于前述处理器1001的存储装置。
本领域技术人员可以理解,图1中示出的终端的硬件架构并不构成对终端的限定,可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置。
如图1所示,作为一种计算机存储介质的存储器1005中可以包括操作系统、网络通信模块、用户接口模块以及信用评估程序。
在图1所示的终端中,网络接口1004主要用于连接后台服务器,与后台服务器进行数据通信;处理器1001可以用于调用存储器1005中存储的信用评估程序,并执行以下操作:
获取第一区块链节点发送的评估对象的信用记录,根据所述信用记录确定所述评估对象的第一信用评分;
根据所述第一信用评分对所述评估对象的当前信用评分进行更新得到第二信用评分;
将所述第二信用评分发送至其他的区块链节点,以使所有的区块链节点将所述评估对象的信用评分更新为所述第二信用评分。
在一实施例中,处理器1001可以用于调用存储器1005中存储的信用评估程序,还执行以下操作:
根据所述第一区块链节点确定所述第一信用评分对应的评分系数;
根据所述第一信用评分以及所述评分系数对所述评估对象的当前信用评分进行更新得到第二信用评分。
在一实施例中,处理器1001可以用于调用存储器1005中存储的信用评估程序,还执行以下操作:
获取所述评估对象的第一公钥;
根据所述第一公钥,对所述评估对象的信用评分的更新记录进行加密得到加密数据;
将所述加密数据与所述评估对象进行关联存储,并将所述加密数据发送至其他的区块链节点。
在一实施例中,处理器1001可以用于调用存储器1005中存储的信用评估程序,还执行以下操作:
接收信用评分的查询请求,并根据所述查询请求生成所述查询请求对应的加密数据的解密请求;
向第二区块链节点发送所述解密请求,所述第二区块链节点包括所述加密数据的第一私钥;
接收所述第二区块链节点反馈的解密数据,并输出所述解密数据。
在一实施例中,处理器1001可以用于调用存储器1005中存储的信用评估程序,还执行以下操作:
接收信用评分的查询请求,验证所述查询请求对应的查询对象的权限;
在所述查询对象的权限验证成功后,输出所述第二信用评分。
在一实施例中,处理器1001可以用于调用存储器1005中存储的信用评估程序,还执行以下操作:
接收信用评分的查询请求;
在所述查询请求对应的区块链节点为联盟区块链中的成员时,输出所述第二信用评分。
在一实施例中,处理器1001可以用于调用存储器1005中存储的信用评估程序,还执行以下操作:
获取所述第一区块链节点对应的第二公钥;
根据所述第二公钥对所述信用记录的数字签名进行验证;
在验证通过时,执行所述根据所述信用记录确定所述评估对象的第一信用评分的步骤。
在一实施例中,处理器1001可以用于调用存储器1005中存储的信用评估程序,还执行以下操作:
接收信用事件,并获取所述信用事件对应的信用事件类型;
获取所述信用事件类型对应的第一信用评分;
根据所述信用事件以及所述第一信用评分生成信用记录,并将所述信用记录发送至其他的区块链节点。
参照图2,在本申请信用评估方法的第一实施例中,所述信用评估方法包括以下步骤:
步骤S10、获取第一区块链节点发送的评估对象的信用记录,根据所述信用记录确定所述评估对象的第一信用评分;
步骤S20、根据所述第一信用评分对所述评估对象的当前信用评分进行更新得到第二信用评分;
步骤S30、将所述第二信用评分发送至其他的区块链节点,以使所有的区块链节点将所述评估对象的信用评分更新为所述第二信用评分。
在本实施例中,所述区块链节点是本节点所处区块链网络中的计算机,例如,智能手机、台式机;所述评估对象通常为整体企业,所述评估对象在进行工商注册时,便在区块链平台上创建对应的信用记录本。
所述信用记录可以包括:评估对象、评估对象的信用事件以及信用事件对应的第一信用评分;所述第一信用评分为第一区块链节点对应的机构根据信用事件生成的信用评分;所述当前信用评分为评估对象的每一信用事件对应的第一信用评分之和,记录在评估对象对应的信用记录本中;所述第二信用评分为评估对象最新的信用评分,根据第一信用评分以及当前的信用评分得到。
限定区块链节点在接收其他的区块链节点发送的信用记录时,还可以产生信用记录。
限定本区块链节点在信用记录时,也将信用记录发送至其他的区块链节点;本区块链节点所处区块链网络的所有节点在接收到信用记录时执行更新评估对象的信用评分的操作。
需说明的是,区块链节点可以连接多个子节点,其中,区块链节点可以是某企业或者某机构对应的终端设备。
处理器接收第一区块链节点发送的信用记录,获取信用记录中记录的评估对象,并确定评估对象对应的信用记录本,然后将接收到的信用记录保存在评估对象对应的信用记录本上。处理器获取信用记录中记录的第一信用评分,并从信用记录本中获取评估对象的当前信用评分,根据第一信用评分以及当前信用评分计算得到第二信用评分,然后将第二信用评分保存在评估对象对应的信用记录本上,并将第二信用评分发送至本节点所处区块链网络中的其他区块链节点,以使所有的区块链将评估对象的信用评分更新为第二信用评分;处理器还可以根据实际信用评分以及第二信用评分生成更新记录,然后根据更新记录对评估对象当前的信用评估记录进行更新得到最新的信用评估记录,并将最新的信用评估记录保存在评估对象对应的信用记录本上。
在本实施例公开的技术方案中,由于区块链数据的不可篡改性,本方案通过区块链节点获取的信用记录,然后根据信用记录对评估对象进行信用评估,避免了因为数据录入错误而导致信用评估结果不准确的情况,从而达成了提高信用评估结果准确率的效果。
可选地,基于第一实施例,在本申请信用评估方法的第二实施例中,所述步骤S20进一步包括以下步骤:
步骤S21、根据所述第一区块链节点确定所述第一信用评分对应的评分系数;
步骤S22、根据所述第一信用评分以及所述评分系数对所述评估对象的当前信用评分进行更新得到第二信用评分。
在本实施例中,所述第一区块链节点为产生所述第一信用评分的节点;所述评分系数为区块链节点对应的某企业或者某机构的评分系数,用于获取信用事件的实际信用评分,且该评分系数随着机构或者企业的社会公信力的增大而增大,示例性地,在所述区块链节点对应的企业是私企时,所述评分系数为0.5,在所述区块链节点对应的企业是国家企业时,所述评分系数为1,在区块链节点对应的机构是银行时,所述评分系数为2;在所述区块链节点对应的机构的政府机关时,所述评分系数为3。
处理器获取第一区块链节点的节点标识,获取存储器中与节点标识对应的评分系数,并将第一信用评分以及评分系数相乘得到实际信用评分,然后将实际信用评分以及当前信用评分相加得到第二信用评分。
在本实施例公开的技术方案中,通过根据区块链节点对应的企业或机构的类型设置评分系数,然后根据该评分系数计算实际信用评分,并根据实际信用评分更新第二信用评分,在可信度低的企业或者机构进行恶意评分时,可以降低对评估对象的第二信用评分的影响,从而达到提高信用评估结果的可信度的效果。
可选地,参照图3,基于第一实施例,在本申请信用评估方法的第三实施例中,所述步骤S30进一步包括以下步骤:
步骤S31、获取所述评估对象的第一公钥;
步骤S32、根据所述第一公钥,对所述评估对象的信用评分的更新记录进行加密得到加密数据;
步骤S33、将所述加密数据与所述评估对象进行关联存储,并将所述加密数据发送至其他的区块链节点。
在本实施例中,所述更新记录可以包括更新时间、第二信用评分、实际信用评分以及信用记录的区块标识;所述第一公钥为评估对象的公钥。
处理器获取存储器中评估对象对应的第一公钥,然后获取评估对象的更新记录,并根据第一公钥对更新记录进行加密,得到评估对象的更新记录的加密数据,然后将加密数据保存在评估对象对应的信用记录本上。同时,处理器还可以获取本节点的节点私钥对该加密数据进行数字签名,然后将加密数据以及对应的数字签名发送至其他的区块链节点。
所述步骤S33之后还包括以下步骤:
步骤S34、接收信用评分的查询请求,并根据所述查询请求生成所述查询请求对应的加密数据的解密请求;
步骤S35、向第二区块链节点发送所述解密请求,所述第二区块链节点包括所述加密数据的第一私钥;
步骤S36、接收所述第二区块链节点反馈的解密数据,并输出所述解密数据。
在本实施例中,所述信用评分的查询请求可以包括:查询对象、评估对象以及查询条件;所述第二区块链节点为评估对象对应的终端设备;所述第一私钥为评估对象的私钥,存储在第二区块链节点的存储器中;所述解密数据可以包括评估对象的第二信用评分,也可以是第二信用评分的更新记录。
处理器接收信用评分的查询请求,根据查询请求的查询对象以及查询条件生成解密请求,确定评估对象对应的第二区块链节点,然后将解密请求发送至第二区块链节点,使得第二区块链根据解密请求判断是否同意解密,并在同意解密时,对查询条件对应的加密数据进行解密得到解密数据,然后将该解密数据反馈至发送解密请求的区块链节点。
处理器接收第二区块链节点反馈的解密数据,并将解密数据输出。
在本实施例公开的技术方案中,通过加密第二信用评分,在接收到查询请求时,仅由第二区块链节点对加密数据解密才能够得到查询请求对应的明文,从而达成了保密第二信用评分的效果。
可选地,参照图4,基于第一实施例,在本申请信用评估方法的第四实施例中,所述步骤S30的步骤之后还包括以下步骤:
步骤S40、接收信用评分的查询请求,验证所述查询请求对应的查询对象的权限;
步骤S50、在所述查询对象的权限验证成功后,输出所述第二信用评分。
在本实施例中,所述信用评分的查询请求可以包括:查询对象、评估对象以及查询条件。
处理器接收信用评分的查询请求,获取查询请求中的查询对象,并验证查询对象的权限,在查询对象的权限验证成功后,输出查询条件对应的第二信用评分;在查询对象的权限验证失败时,输出查询失败的提示信息。
示例性的,在验证查询对象的权限时,处理器可以判断存储器中是否存在查询对象对应的授权信息,在存储器中存在查询对象对应的授权信息时,判定查询对象的权限验证成功;在存储器中不存在查询对象对应的授权信息时,判定查询对象的权限验证失败。处理器还可以根据查询对象生成授权请求,然后将授权请求发送至评估对象对应的区块链节点,在接收到区块链节点发送的同意授权应答时,判定查询对象的权限验证成功;在预设时间内未接收到区块链节点发送的同意授权应答时,或者在接收到区块链节点发送的不同意授权应答时,判定查询对象的权限验证失败。
在本实施例公开的技术方案中,通过验证查询对象的权限,并在权限验证成功后才输出第二信用评分,避免了泄露第二信用评分给非授权节点的情况,从而达成了提高信用评估结果的安全性的效果。
可选地,参照图5,基于第一实施例,在本申请信用评估方法的第五实施例中,所述步骤S30的步骤之后还包括以下步骤:
步骤S60、接收信用评分的查询请求;
步骤S70、在所述查询请求对应的区块链节点为联盟区块链中的成员时,输出所述第二信用评分。
在本实施例中,所述信用评分的查询请求可以包括:查询对象、评估对象以及查询条件;所述查询对象可以为节点标识。
处理器接收信用评分的查询请求,获取查询请求中的节点标识,获取存储器中评估对象所处区块链网络的区块链节点标识,并判断是否存在与节点标识一致的区块链标识,在存在与节点标识一致的区块链标识时,判定查询对象是联盟区块链中的成员,然后获取查询条件对应的第二信用评分,并将第二信用评分输出;在不存在与节点标识一致的区块链标识时,判定查询对象不是联盟区块链中的成员,输出查询失败的提示信息。
在本实施例公开的技术方案中,通过判断查询对象是否为联盟区块链中的节点,并在查询对象为联盟区块链中的节点时才输出对应的查询数据,避免了泄露第二信用评分给非联盟区块链节点的情况,从而达成了提高信用评估结果的安全性的效果。
可选地,基于第一实施例,在本申请信用评估方法的第六实施例中,所述步骤S10进一步包括以下步骤:
步骤S11、获取第一区块链节点发送的评估对象的信用记录,
步骤S12、获取所述第一区块链节点对应的第二公钥;
步骤S13、根据所述第二公钥对所述信用记录的数字签名进行验证;
步骤S14、在验证通过时,执行所述根据所述信用记录确定所述评估对象的第一信用评分的步骤。
在本实施例中,所述第二公钥为第一区块链节点的公钥,存储在本节点存储器中。
处理器接收第一区块链节点发送的评估对象的信用记录,然后获取第一区块链节点的节点标识,并获取存储器中节点标识对应的第二公钥;获取信用记录中的数字签名以及哈希值,并根据第二公钥对数字签名进行解密得到验证数据,比对验证数据以及哈希值。在验证数据以及哈希值一致时,判定验证通过,然后获取信用记录中的第一信用评分;在验证数据以及哈希值一致时,判定验证不通过,然后丢弃该信用记录。
在本实施例公开的技术方案中,通过对信用记录的数字签名进行验证,并在验证通过时,才根据信用记录对评估对象进行信用评估,避免了根据错误信用记录进行信用评估的情况,从而达成了提高信用评估结果的准确率的效果。
可选地,参照图6,基于第一实施例,在本申请信用评估方法的第七实施例中,所述步骤S10之前还包括以下步骤:
S80、接收信用事件,并获取所述信用事件对应的信用事件类型;
S90、获取所述信用事件类型对应的第一信用评分;
S100、根据所述信用事件以及所述第一信用评分生成信用记录,并将所述信用记录发送至其他的区块链节点。
在本实施例中,所述信用事件可以包括时间、事件发生对象、事件描述以及事件类型;
处理器接收信用事件,并获取信用事件中的事件类型,获取存储器中该事件类型对应的第一信用评分,然后将事件发生对象作为评估对象,然后根据时间以及事件描述生成评估对象的信用事件,最后根据评估对象、评估对象的信用事件以及第一信用评分生成信用记录。
处理器在没有获取到事件类型对应的第一信用评分时,输出无法获取第一信用评分的提示信息,以供用户根据提示信息输入信用事件对应的第一信用评分。处理器接收第一信用评分,并将第一信用评分以及事件类型关联保存在存储器中,然后根据评估对象、评估对象的信用事件以及第一信用评分生成信用记录。
处理器对信用记录进行哈希处理得到信用记录的哈希值,然后获取本区块链节点的私钥,根据私钥对信用记录的哈希值进行加密,得到信用记录的数字签名,然后将信用记录以及对应的数字签名发送至其他的区块链节点。
在本实施例公开的技术方案中,通过接收信用事件并根据信用事件生成信用记录,然后将信用记录发送至其他的区块链节点。通过将信用记录上传到区块链网络,使得每个区块链节点都可以根据信用记录对评估对象进行信用评估,避免了单一信用评估节点的数据造假的情况,从而提高了信用评估结果的可信度。
此外,本申请实施例还提出一种信用评估系统,所述信用评估系统包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的信用评估程序,所述信用评估程序被所述处理器执行时实现如上各个实施例所述的信用评估方法的步骤。
此外,本申请实施例还提出一种计算机可读存储介质,所述计算机可读存储介质上存储有信用评估程序,所述信用评估程序被处理器执行时实现如上各个实施例所述的信用评估方法的步骤。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者系统不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者系统所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者系统中还存在另外的相同要素。
上述本申请实施例序号仅仅为了描述,不代表实施例的优劣。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在如上所述的一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端设备(可以是智能手机等)执行本申请各个实施例所述的方法。
以上仅为本申请的优选实施例,并非因此限制本申请的专利范围,凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本申请的专利保护范围内。

Claims (10)

  1. 一种信用评估方法,其中,所述信用评估方法包括以下步骤:
    获取第一区块链节点发送的评估对象的信用记录,根据所述信用记录确定所述评估对象的第一信用评分;
    根据所述第一信用评分对所述评估对象的当前信用评分进行更新得到第二信用评分;
    将所述第二信用评分发送至其他的区块链节点,以使所有的区块链节点将所述评估对象的信用评分更新为所述第二信用评分。
  2. 如权利要求1所述的信用评估方法,其中,所述根据所述第一信用评分对所述评估对象的当前信用评分进行更新得到第二信用评分的步骤包括:
    根据所述第一区块链节点确定所述第一信用评分对应的评分系数;
    根据所述第一信用评分以及所述评分系数对所述评估对象的当前信用评分进行更新得到第二信用评分。
  3. 如权利要求1所述的信用评估方法,其中,所述将所述第二信用评分发送至其他的区块链节点的步骤包括:
    获取所述评估对象的第一公钥;
    根据所述第一公钥,对所述评估对象的信用评分的更新记录进行加密得到加密数据;
    将所述加密数据与所述评估对象进行关联存储,并将所述加密数据发送至其他的区块链节点。
  4. 如权利要求3所述的信用评估方法,其中,所述将所述加密数据发送至其他的区块链节点的步骤之后,还包括:
    接收信用评分的查询请求,并根据所述查询请求生成所述查询请求对应的加密数据的解密请求;
    向第二区块链节点发送所述解密请求,所述第二区块链节点包括所述加密数据的第一私钥;
    接收所述第二区块链节点反馈的解密数据,并输出所述解密数据。
  5. 如权利要求1所述的信用评估方法,其中,所述将所述第二信用评分发送至其他的区块链节点的步骤之后,还包括:
    接收信用评分的查询请求,验证所述查询请求对应的查询对象的权限;
    在所述查询对象的权限验证成功后,输出所述第二信用评分。
  6. 如权利要求1所述的信用评估方法,其中,所述将所述第二信用评分发送至其他的区块链节点的步骤之后,还包括:
    接收信用评分的查询请求;
    在所述查询请求对应的区块链节点为联盟区块链中的成员时,输出所述第二信用评分。
  7. 如权利要求1所述的信用评估方法,其中,所述获取区块链节点发送的评估对象的信用记录的步骤之后,还包括:
    获取所述第一区块链节点对应的第二公钥;
    根据所述第二公钥对所述信用记录的数字签名进行验证;
    在验证通过时,执行所述根据所述信用记录确定所述评估对象的第一信用评分的步骤。
  8. 如权利要求1所述的信用评估方法,其中,所述获取区块链节点发送的评估对象的信用记录的步骤之前,还包括:
    接收信用事件,并获取所述信用事件对应的信用事件类型;
    获取所述信用事件类型对应的第一信用评分;
    根据所述信用事件以及所述第一信用评分生成信用记录,并将所述信用记录发送至其他的区块链节点。
  9. 一种信用评估系统,其中,所述信用评估系统包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的信用评估程序,所述信用评估程序被所述处理器执行时实现如权利要求1-8任一项所述的信用评估方法的步骤。
  10. 一种计算机可读存储介质,其中,所述计算机可读存储介质上存储有信用评估程序,所述信用评估程序被处理器执行时实现如权利要求1至8中任一项所述的信用评估方法的步骤。
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