WO2021239104A1

WO2021239104A1 - Blockchain-based service processing

Info

Publication number: WO2021239104A1
Application number: PCT/CN2021/096706
Authority: WO
Inventors: 朱永春; 曲正云; 张文强; 杨振宇; 陈锐发; 刘屹东
Original assignee: 支付宝(杭州)信息技术有限公司
Priority date: 2020-05-29
Filing date: 2021-05-28
Publication date: 2021-12-02
Also published as: CN112215601B; CN111401902A; CN112184222B; CN112215601A; CN111401902B; CN112184222A

Abstract

Disclosed are a blockchain-based service processing method, apparatus and device, which are applied to a blockchain node. The method comprises: acquiring certificate storage information generated by a service authorization party for a service requesting party, and deploying a first smart contract on the basis of the certificate storage information, wherein the first smart contract is used for verifying encrypted and signed data; receiving a first service request from the service requesting party, wherein the first service request comprises service data and the encrypted and signed data; calling the first smart contract to verify the encrypted and signed data, so as to obtain a verification result; if the verification result indicates that verification is passed, sending the service data and the encrypted and signed data to the service authorization party, such that the service authorization party performs secondary verification on the encrypted and signed data, and performs, after verification is passed, service processing on the basis of the service data, so as to obtain a processing result; receiving the processing result returned by the service authorization party, returning the processing result to the service requesting party, and on the basis of the processing result, processing a second service request initiated by the service requesting party.

Description

Blockchain-based business processing

Technical field

This specification relates to the field of computer technology, and in particular to a method, device and equipment for business processing based on blockchain.

Background technique

The security of Internet-based financial transactions has always been an important topic of concern to financial institutions. At present, for the security of Internet-based financial transactions, the commonly used means is to use dedicated hardware devices to store identifiable business requesters (such as a company or institution). Etc.), and the digital certificate stored in the hardware device cannot be read. In the actual application process, the hardware device can be connected to the device that performs Internet financial transactions (ie, the device used by the business requester) to sign the transmitted information in the Internet financial transaction. (For example, a financial institution, specifically a bank, etc.) can verify the above-mentioned signed information to determine the identity information of the service requester, thereby realizing financial-level user identity verification based on peer-to-peer transactions.

For business requesters, with the growth of Internet-based services, there will be more and more business needs such as resource applications (such as financing, etc.) for Internet services, and more and more financial institutions have also proposed Internet-based services. The business conducts verification, signature verification, and authorization requirements. For this reason, the aforementioned methods of identity verification and signature verification based on peer-to-peer transactions have encountered new business challenges. Therefore, it is necessary to provide a better technical solution for processing such as verification, signature verification, and authorization in Internet-based financial transactions.

Summary of the invention

The service processing method provided by the embodiment of this specification is applied to a blockchain node and includes: obtaining the deposit information generated by the service authorizer to the service requester, deploying a first smart contract based on the deposit information, and the first smart contract A smart contract is used to verify the signature data of the service requester according to the deposit information. Receive a first service request from the service requester, where the first service request includes service data and endorsement data. The first smart contract is called to verify the signed data, and the verification result is obtained. If the verification result is passed, the service data and the endorsement data are sent to the service authorizer so that the service authorizer can perform a second verification on the endorsement data, and the verification is based on the service data after passing the verification. Perform business processing and get the processing result. Receiving the processing result returned by the service authorizer, returning the processing result to the service requesting party, and sending the service requesting party initiated by the service requesting party based on the processing result and related to the business data corresponding to the service data 2. The business request is processed.

A service processing method provided by the embodiment of this specification, applied to a service authorizing party, includes: generating a digital certificate and deposit information for the service requesting party. The digital certificate is issued to the service requester, and the deposit certificate information is sent to a predetermined blockchain node, so that the blockchain node deploys a first smart contract based on the deposit information. A smart contract is used to verify the signature data of the service requester according to the deposit information, and when the first service request of the service requester is received, call the first smart contract to Sign the data for verification, and get the verification result. Receive the service data and endorsement data sent by the blockchain node, where the service data and endorsement data are sent by the blockchain node when the verification result is passed, and the endorsement data is based on Data generated by the digital certificate. Perform secondary verification on the signed data. If the verification is passed, perform business processing based on the business data to obtain the processing result, and return the processing result to the blockchain node so that the block The chain node processes the second service request related to the service corresponding to the service data initiated by the service requester based on the processing result.

The embodiment of this specification provides a blockchain-based business processing method, which is applied to a first blockchain node accessing a first blockchain, including: through the first blockchain and a business authorization agency corresponding to The cross-chain transmission channel of the second blockchain obtains the deposit information generated by the second blockchain node to the business requester from the second blockchain, and deploys the first smart contract based on the deposit information, so The first smart contract is used to verify the signature data of the service requester according to the deposit information. Receive a first service request from the service requester, where the first service request includes service data and endorsement data. The first smart contract is called to verify the signed data, and the verification result is obtained. If the verification result is passed, the business data and endorsement data are sent to the second blockchain node in the second blockchain through the cross-chain transmission channel, so that the second The blockchain node performs secondary verification on the signed data, and after the verification is passed, business processing is performed based on the business data to obtain a processing result. Through the cross-chain transmission channel, the processing result returned by the second blockchain node is received, the processing result is returned to the service requester, and the processing result is initiated to the service requester based on the processing result. The second service request related to the service corresponding to the service data is processed.

The embodiment of this specification provides a blockchain-based service processing method, which is applied to a second blockchain node connected to a second blockchain, and includes: generating a digital certificate and deposit information for a service requester. Issue the digital certificate to the service requester, and send it to the first blockchain node of the first blockchain through the cross-chain transmission channel of the first blockchain and the second blockchain The deposit information, so that the first blockchain node deploys a first smart contract based on the deposit information, and the first smart contract is used to add to the service requester according to the deposit information The signed data is verified, and when the first service request of the service requester is received, the first smart contract is invoked to verify the signed data, and the verification result is obtained. Through the cross-chain transmission channel, receive the service data and endorsement data sent by the first blockchain node of the first blockchain, where the service data and endorsement data are the first blockchain The node sends when the verification result is passed, and the signature data is data generated based on the digital certificate. Perform secondary verification on the signed data. If the verification is passed, perform business processing based on the business data to obtain the processing result, and return the processing result to the first zone of the first blockchain A block chain node, so that the first block chain node processes, based on the processing result, a second service request related to the service corresponding to the service data initiated by the service requester.

A service processing device provided by an embodiment of this specification includes: a contract deployment module, which obtains the deposit information generated by the service authorizer to the service requester, and deploys a first smart contract based on the deposit information, the first smart contract It is used to verify the signature data of the service requester according to the deposit information. The request receiving module receives a first service request from the service requester, where the first service request includes service data and endorsement data. The first verification module calls the first smart contract to verify the signed data, and obtain a verification result. The data sending module, if the verification result is passed, sends the service data and the endorsed data to the service authorizing party, so that the service authorizing party performs secondary verification on the endorsed data, and the verification is based on The business data is processed to obtain a processing result. The processing module receives the processing result returned by the service authorizer, returns the processing result to the service requester, and initiates the service corresponding to the service data to the service requester based on the processing result The related second service request is processed.

A service processing device provided by an embodiment of this specification includes: a generating module, which generates a digital certificate and certificate information for a service requester. A sending module, which issues the digital certificate to the service requester, and sends the deposit information to a predetermined blockchain node, so that the blockchain node deploys the first smart contract based on the deposit information, The first smart contract is used to verify the signature data of the service requester according to the deposit information, and when the first service request of the service requester is received, call the first smart contract Verifying the endorsed data to obtain a verification result. The data receiving module receives the business data and endorsement data sent by the blockchain node. The business data and endorsement data are sent by the blockchain node when the verification result is passed. The signature data is data generated based on the digital certificate. The secondary verification module performs secondary verification on the signed data. If the verification is passed, business processing is performed based on the business data to obtain the processing result, and the processing result is returned to the blockchain node to The blockchain node is enabled to process a second service request related to the service corresponding to the service data initiated by the service requester based on the processing result.

The embodiment of this specification provides a blockchain-based business processing device, including: an information acquisition and contract deployment module, through the cross-chain transmission channel of the first blockchain and the second blockchain corresponding to the business authorization agency , Obtain the deposit certificate information generated by the second blockchain node to the service requester from the second blockchain, deploy a first smart contract based on the deposit information, and the first smart contract is used to The deposit information verifies the signature data of the service requester. The request module receives a first service request from the service requester, where the first service request includes service data and endorsement data. The calling module calls the first smart contract to verify the signed data, and obtain a verification result. The cross-chain transmission module, if the verification result is passed, sends the business data and endorsement data to the second blockchain node in the second blockchain through the cross-chain transmission channel to The second blockchain node is allowed to perform secondary verification on the signed data, and after the verification is passed, business processing is performed based on the business data to obtain a processing result. The processing module receives the processing result returned by the second blockchain node through the cross-chain transmission channel, returns the processing result to the service requester, and requests the service based on the processing result The second service request related to the service corresponding to the service data initiated by the party is processed.

The embodiment of this specification provides a blockchain-based business processing device, including: a certificate and information generation module, which generates a digital certificate and certificate information for a business requester. The certificate and information sending module issues the digital certificate to the service requester, and sends the digital certificate to the first block chain through the cross-chain transmission channel of the first block chain and the second block chain. A blockchain node sends the deposit information so that the first blockchain node deploys a first smart contract based on the deposit information, and the first smart contract is used to check the deposit information according to the deposit information. The signature data of the service requester is verified, and when the first service request of the service requester is received, the first smart contract is invoked to verify the signature data, and the verification result is obtained. The data receiving module receives the service data and endorsement data sent by the first blockchain node of the first blockchain through the cross-chain transmission channel, where the service data and endorsement data are the first A blockchain node sends when the verification result is passed, and the endorsement data is data generated based on the digital certificate. The verification module performs secondary verification on the signed data. If the verification is passed, perform business processing based on the business data to obtain the processing result, and return the processing result to the first blockchain A first blockchain node, so that the first blockchain node processes, based on the processing result, a second service request related to the service corresponding to the service data initiated by the service requester.

A service processing device provided by an embodiment of this specification includes a processor and a memory arranged to store computer-executable instructions. When the executable instructions are executed, the processor: The generated deposit certificate information deploys a first smart contract based on the deposit certificate information, and the first smart contract is used to verify the signature data of the service requester according to the deposit certificate information. Receive a first service request from the service requester, where the first service request includes service data and endorsement data. The first smart contract is called to verify the signed data, and the verification result is obtained. If the verification result is passed, the service data and the endorsement data are sent to the service authorizer so that the service authorizer can perform a second verification on the endorsement data, and the verification is based on the service data after passing the verification. Perform business processing and get the processing result. Receiving the processing result returned by the service authorizer, returning the processing result to the service requesting party, and sending the service requesting party initiated by the service requesting party based on the processing result and related to the business data corresponding to the service data 2. The business request is processed.

A service processing device provided by an embodiment of this specification includes a processor and a memory arranged to store computer-executable instructions. When the executable instructions are executed, the processor: generates a digital certificate for the service requester And deposit information. The digital certificate is issued to the service requester, and the deposit certificate information is sent to a predetermined blockchain node, so that the blockchain node deploys a first smart contract based on the deposit information. A smart contract is used to verify the signature data of the service requester according to the deposit information, and when the first service request of the service requester is received, call the first smart contract to Sign the data for verification, and get the verification result. Receive the service data and endorsement data sent by the blockchain node, where the service data and endorsement data are sent by the blockchain node when the verification result is passed, and the endorsement data is based on Data generated by the digital certificate. Perform secondary verification on the signed data. If the verification is passed, perform business processing based on the business data to obtain the processing result, and return the processing result to the blockchain node so that the block The chain node processes the second service request related to the service corresponding to the service data initiated by the service requester based on the processing result.

The embodiment of this specification provides a blockchain-based business processing device, which includes a processor and a memory arranged to store computer-executable instructions. When the executable instructions are executed, the processor: The first block chain and the cross-chain transmission channel of the second block chain corresponding to the business authorization agency obtain the deposit information generated by the second block chain node to the business requester from the second block chain. The deposit certificate information deploys a first smart contract, and the first smart contract is used to verify the signature data of the service requester according to the deposit certificate information. Receive a first service request from the service requester, where the first service request includes service data and endorsement data. The first smart contract is called to verify the signed data, and the verification result is obtained. If the verification result is passed, the business data and endorsement data are sent to the second blockchain node in the second blockchain through the cross-chain transmission channel, so that the second The blockchain node performs secondary verification on the signed data, and after the verification is passed, business processing is performed based on the business data to obtain a processing result. The processing result returned by the second blockchain node is received through the cross-chain transmission channel, the processing result is returned to the service requester, and the transaction initiated by the service requester is based on the processing result. The service-related second service request corresponding to the service data is processed.

The embodiment of this specification provides a blockchain-based business processing device, which includes a processor and a memory arranged to store computer-executable instructions. When the executable instructions are executed, the processor: The digital certificate and deposit information of the requesting party. Issue the digital certificate to the service requester, and send it to the first blockchain node of the first blockchain through the cross-chain transmission channel of the first blockchain and the second blockchain The deposit information, so that the first blockchain node deploys a first smart contract based on the deposit information, and the first smart contract is used to add to the service requester according to the deposit information The signed data is verified, and when the first service request of the service requester is received, the first smart contract is invoked to verify the signed data, and the verification result is obtained. Through the cross-chain transmission channel, receive the service data and endorsement data sent by the first blockchain node of the first blockchain, where the service data and endorsement data are the first blockchain The node sends when the verification result is passed, and the signature data is data generated based on the digital certificate. Perform secondary verification on the signed data. If the verification is passed, perform business processing based on the business data to obtain the processing result, and return the processing result to the first zone of the first blockchain A block chain node, so that the first block chain node processes, based on the processing result, a second service request related to the service corresponding to the service data initiated by the service requester.

Description of the drawings

Figure 1 is an embodiment of a service processing method in this specification;

Figure 2 is a schematic structural diagram of a business processing system in this specification;

Figure 3 is another embodiment of the service processing method in this specification;

Figure 4 is another embodiment of a service processing method in this specification;

Figure 5 is another embodiment of the service processing method in this specification;

Figure 6 is another embodiment of the service processing method in this specification;

Figure 7 is another embodiment of the service processing method in this specification;

Figure 8 is an embodiment of a business processing method based on blockchain in this specification;

Figure 9 is a schematic structural diagram of another business processing system in this specification;

Fig. 10 is another embodiment of a blockchain-based business processing method in this specification;

Figure 11 is an embodiment of a service processing device in this specification;

Figure 12 is another embodiment of a service processing device in this specification;

Figure 13 is an embodiment of a business processing device based on blockchain in this specification;

FIG. 14 is another embodiment of a business processing device based on blockchain in this specification;

Figure 15 is an embodiment of a service processing device in this specification;

Figure 16 is another embodiment of a service processing device in this specification.

Detailed ways

Example one

As shown in Figure 1, the embodiment of this specification provides a business processing method. The execution body of the method can be a blockchain node, the blockchain node can be a terminal device or a server, and the terminal device can be mobile such as mobile phones, tablets, etc. Terminal equipment can also be equipment such as personal computers. The server can be an independent server, or a server cluster composed of multiple servers. The system architecture involved in the embodiment of this specification may be as shown in FIG. 2. The method may specifically include the following steps: in step S102, obtaining the deposit information generated by the service authorizing party to the service requesting party, and deploying a first smart contract based on the deposit information, and the first smart contract is used to pair according to the deposit information The endorsement data of the business requester is verified.

The business authorization party may be the party that grants the corresponding authority to the business requesting party requesting the execution of a certain business, and the business requesting party may be the party requesting the execution of a certain business. For example, it may include a certain logistics organization and a financial institution. If it is necessary to apply for financing from the financial institution, for the financing business, the logistics institution can be the business requester. Since the financial institution needs to grant the logistics institution the authority to apply for financing from the financial institution, the financial institution can act as Business authorized party. The deposit information can be the information that the business authorizing party needs to record or store, so that it can be used as a basis for subsequent business disputes or information verification. The deposit information can include a variety of different information, such as the relevant information of the business authorizing party (such as The identity of the business authorizer, the digital identity information of the business authorizer, the identity of the business requester, the digital identity information of the business requester, and authorization-related information. The digital identity information can include multiple types, such as DID (Decentralized IDentity, Decentralized identity identifier) etc.). The first smart contract can be a smart contract constructed from deposit information. The smart contract is a computer protocol designed to spread, verify, or perform a certain process in an informatized manner. The smart contract allows to be carried out without a third party. Trusted interaction, the aforementioned interaction is traceable and irreversible, and the first smart contract may include an agreement on which the contract participants can execute the rights and obligations agreed by the contract participants. The first smart contract may include a trigger condition that triggers the execution of the first smart contract and a result corresponding to the trigger condition. The first smart contract may include one or more trigger conditions, and each trigger condition may correspond to a result, such as The trigger condition of the first smart contract is: the deposit certificate information matches the data to be verified provided by the service requester, and the result of the trigger condition is: the identity verification of the service requester passes, etc.

In the implementation, the security of Internet-based financial transactions has always been an important topic of concern to financial institutions. At present, for the security of Internet-based financial transactions, the commonly used means is to use dedicated hardware devices to store identifiable business requesters (such as The digital certificate of the identity of a certain enterprise or organization, etc., and the digital certificate stored in the hardware device cannot be read. In the actual application process, the hardware device can be connected to the device that performs Internet financial transactions (ie, the device used by the business requester) to sign the transmitted information in the Internet financial transaction. (For example, a financial institution, specifically a bank, etc.) can verify the above-mentioned signed information to determine the identity information of the service requester, thereby realizing financial-level user identity verification based on peer-to-peer transactions. For business requesters, with the growth of Internet-based services, there will be more and more business needs such as resource applications (such as financing, etc.) for Internet services, and more and more financial institutions have also proposed Internet-based services. The business conducts verification, signature verification, and authorization requirements. For this reason, the aforementioned methods of identity verification and signature verification based on peer-to-peer transactions have encountered new business challenges. Therefore, it is necessary to provide a better technical solution for processing such as verification, signature verification, and authorization in Internet-based financial transactions. The embodiments of this specification provide a method for realizing the above-mentioned technical solutions, which may specifically include the following content: With the rapid development of e-commerce, a large number of organizations or enterprises are increasingly inclined to use electronic information for business exchanges and communication. Reduce costs and enhance competitiveness. To this end, it is possible to issue authorized information or digital certificates to the service requester to grant the service requester access or execution authority for a certain service, thereby improving the security of information transmission. In the embodiment of this specification, based on the digital certificate in the above hardware device, the service authorizer can generate the corresponding digital certificate for the service requester, but the digital certificate does not need to be stored in the hardware device, but can be constructed in the form of software or application. The digital certificate file, specifically, the business requester can apply to the business authorizer for access or execution authority of a certain business, and the business authorizer can obtain relevant data of the business requester, such as the business status information of the business requester, and the business request Information such as the development prospects of the party and the fixed resources owned by the business requesting party. The business authorizer can verify whether the business requester has the qualification to access or execute the business based on the above data. If it is determined that the business requester has the qualification to access or execute the business, it can generate a digital certificate for the business requester. If it is determined that the service requester does not have the qualifications to access or execute the service, the corresponding notification message can be sent to the service requester. The service authorizer can send the generated digital certificate file to the service requester, so that when the service requester needs to access or perform the above-mentioned services, the corresponding data can be processed through the digital certificate and then sent to the service Authorized party.

When the service authorizer sends the generated digital certificate to the service requester, in order to verify the signature information corresponding to the digital certificate and to deposit the relevant information corresponding to the digital certificate, the deposit information generated by the service requester can be verified . As for the storage device for the storage of certificate information, considering the accuracy of the certificate information and preventing tampering, a blockchain can be constructed to store the above-mentioned certificate information in the blockchain. The blockchain is essentially a decentralized database. It is a series of data blocks associated with cryptographic methods. Each data block can contain stored data and related information (for example, it can be used to verify the validity of its data). (Or anti-counterfeiting) and information to generate the next block, etc.). The anti-tampering, anti-counterfeiting and traceability of the data on the blockchain can be better applied. If the relevant behavioral data in the use, management and processing of the evidence information is added to the blockchain, the evidence information Will not be able to change and deny. Therefore, the deposit information can be maintained through the blockchain. In this way, the signature data of the business requester can be verified based on the deposit information in the blockchain, so as to ensure the accuracy of the deposit information.

Based on the above content, the blockchain node can be used to respond to the relevant processing of the business authorizer and the business requester, so as to provide related services to the business requester of a certain business process. Specifically, when the business authorizer sends the generated digital certificate to the business When the requesting party, it can also generate deposit information for the business requester, and the business authorizing party can provide the deposit information to the blockchain node in the above-mentioned blockchain, and the blockchain node can obtain the deposit information, And the deposit information can be stored in the blockchain.

In addition, blockchain nodes can also formulate verification and verification rules for the business requester based on the obtained deposit information, and can generate corresponding smart contracts (i.e., the first smart contract) based on the verification and verification rules , And the first smart contract can be deployed to the blockchain network where the blockchain node is located. In this way, the deposit certificate information and the corresponding first smart contract are stored in the blockchain, and other organizations or personnel cannot tamper with the deposit. Certificate information and the corresponding first smart contract, and the blockchain node can verify and verify the business requester through the first smart contract.

In step S104, a first service request from the service requester is received, and the first service request includes service data and endorsement data.

Business data can be data related to a business request. For example, a business request is a request to apply for a credit line of a resource (such as a credit line of a loan, etc.) from a business authorizing party. The business data can be the data required to apply for a credit line of a resource. For example, the business status information of the business requester, the development prospects of the business requester, and the fixed resources owned by the business requester can be specifically set according to the actual situation, which is not limited in the embodiment of this specification. The signed data can be data obtained by signature processing of certain data, in which the above-mentioned digital certificate can be used for signature processing and so on.

In the implementation, after obtaining the authorization information or digital certificate for accessing or executing a certain service provided by the service authorizing party, the service requesting party can make a service request to the service authorizing party. Specifically, the relevant service request can be set in advance. Page, the page can be set with a request entry for one or more services (specifically, it can be embodied by means of buttons or hyperlinks, etc.). The service requester can open the above page through the terminal device and enter a certain entry through the above request entry. For the relevant page of a business request of a business, you can enter the business data and the relevant information of the business requester's identity through the input box of the relevant information related to the business and the identity of the business requester provided on the page. After the input is completed, you can Click the submit button on this page. At this time, the above-mentioned digital certificate or authorization information can sign information related to the identity of the service requester. Specifically, the digital certificate or authorization information can include a pair of keys, which can include The public key and private key can be used to sign the information related to the identity of the service requester through the private key to generate the signature data. Then, the terminal equipment of the service requester can use the above-mentioned service data and signature data, and the number The public key in the certificate or authorization information generates the first service request, and the first service request can be sent to the blockchain node, so that the blockchain node can receive the first service request from the service requester.

In the above-mentioned signature processing process, in addition to using the private key to sign the information related to the service requester's identity, in practical applications, the public key can also be used to sign the information related to the service requester's identity, and The private key is sent to the blockchain node etc. through the first service request. In addition, the service data can also be signed in the above-mentioned manner, so as to ensure the security of the service data in the transmission process.

In step S106, the first smart contract is called to verify the above-mentioned signed data, and the verification result is obtained.

In implementation, after the blockchain node receives the first service request, it can analyze the first service request, and extract the signature data and the corresponding key (such as the public key mentioned above) from it. Then, the blockchain The node can call the first smart contract to verify the signature data. Specifically, the first smart contract can record the deposit information generated by the service authorizer to the service requester, and the blockchain node can use the above key pair to add The signed data is decrypted, and the data content in the signed data is obtained. The decrypted data content can be compared with the deposit information recorded in the first smart contract. If the decrypted data content is compared with the data recorded in the first smart contract If the deposit information matches, it can be determined that the verification of the aforementioned signed data is passed. If the decrypted data content does not match the deposit information recorded in the first smart contract, it can be determined that the verification of the aforementioned signed data has not passed. At this time, a notification message that the identity verification has failed can be sent to the service requester, so that the service requester can resend the first service request. In addition, it can also send a notification message to the service authorizing party that the verification of the endorsed data of the service requesting party has failed, so that the service authorizing party can adjust the risk level of the service requesting party according to the actual situation, and notify the service requesting party in time through other channels Protect the security of related data, etc., so as to obtain the verification result of verifying the above-mentioned signed data.

In step S108, if the verification result is passed, the service data and the signature data are sent to the service authorizing party so that the service authorizing party will perform a second verification of the signature data, and after the verification is passed, the business data will be performed based on the service data. Processing, get the processing result.

In the implementation, the blockchain node verifies the above-mentioned signed data by calling the first smart contract, and can obtain the corresponding verification result. If the verification result is passed, it indicates that the identity of the business requester is correct. Continue to perform the follow-up related processing to send the above-mentioned business data and endorsement data to the business authorized party. After the service authorizer receives the service data and the signature data, it can also perform secondary verification on the signature data, and then decrypt the signature data through the digital certificate or the key in the authorization information to obtain the signature data The data content obtained by decryption can be compared with the evidence information. If the data content obtained by decryption matches the evidence information, it can be determined that the verification of the above-mentioned signed data is passed. If the data content obtained by decryption matches If the deposit information recorded in the first smart contract does not match, it can be determined that the verification of the above-mentioned signed data has not passed.

If the verification of the above-mentioned endorsed data is passed, the business authorizer can perform business processing on the business corresponding to the first business request based on the business data, and obtain the corresponding processing result. For example, the first business request is an application for resources from the business authorizer For the request for a credit line (such as a credit line for a loan, etc.), the business authorizing party can determine whether the business requester can apply for the credit line of the resource based on the business data, and the value range of the credit line of the resource that can be applied for, etc. If the service authorizer determines based on the service data that the service requester cannot apply for the credit limit of the resource, it can generate the corresponding processing result. If the service authorizer determines based on the service data that the service requester can apply for the credit limit of the resource, it can obtain the service The value range of the credit line of the resource that the requester can apply for, and the corresponding processing result can be generated based on the obtained value range of the credit line of the resource that the service requester can apply for. The business authorized party can return the processing result obtained above to the blockchain node.

In step S110, the above processing result returned by the service authorizer is received, the processing result is returned to the service requester, and the second service request initiated by the service requester and related to the service corresponding to the above service data is processed based on the processing result .

The second business request may be a business request related to the business corresponding to the above-mentioned business data, and the second business request may be different from the above-mentioned first business request. For example, the first business request may be an application for a credit line (such as a loan The second service request may be a request for resource expenditure from a blockchain node or a service authorizer, etc., which can be specifically set according to the actual situation, which is not limited in the embodiment of this specification.

In implementation, the blockchain node can receive the above-mentioned processing result returned by the service authorizer, and can return the processing result to the service requester. Then, the blockchain node can process the second service request related to the service corresponding to the above-mentioned service data that is subsequently initiated by the service requester based on the processing result. However, take a request for resource expenditure from a blockchain node or a business authorizer as an example. If the processing result received by the blockchain node is that the business requester cannot apply for the credit line of the resource, it will subsequently receive the request initiated by the business requester When the second service request is related to the service corresponding to the above service data, the second service request can be refused to be processed. If the processing result received by the blockchain node is that the service requester can apply for the credit line of the resource, it will be received in the subsequent When the service requester initiates a second service request related to the service corresponding to the above service data, the second service request can be processed based on the value range of the credit line of the resource that the service requester can apply for, such as the second service If the value of the resource that needs to be spent in the request is within the above numerical range, the service requester can be provided with the resource that needs to be spent. If the value of the resource that needs to be spent in the second service request is not within the above numerical range, it can be Refuse to process the second service request, etc.

The embodiment of this specification provides a service processing method. The first smart contract is deployed by the service authorizer to the deposit information generated by the service requester. When the first service request of the service requester is received, the first smart contract is called to the second The signature data in a business request is verified. If the verification is passed, the business data and the signature data are sent to the business authorizing party for secondary verification. In this way, the business requester uploads the data signature to the blockchain platform, The blockchain platform performs multi-party data processing (such as data comparison, etc.) on the data, so that the processed data has higher credibility, thereby increasing the possibility of obtaining higher authority from the business authorized party. The blockchain platform performs financial-level verification and signature verification on the business requester, making the data transmitted between the business authorizing party and the business requesting party more secure, and it can also perform transactions initiated by the business requesting party based on the processing results of the business authorizing party. The business-related second business request corresponding to the business data is processed, which reduces the risk of business processing (such as financing, etc.), and improves the security and reliability of business processing.

Example two

As shown in Figure 3, the embodiment of this specification provides a business processing method, the execution subject of the method can be a blockchain node, the blockchain node can be a terminal device or a server, and the terminal device can be mobile such as mobile phones, tablets, etc. Terminal equipment can also be equipment such as personal computers. The server can be an independent server, or a server cluster composed of multiple servers. The method may specifically include the following steps: in step S302, obtaining the deposit information generated by the service authorizing party to the service requesting party, and deploying a first smart contract based on the deposit information, and the first smart contract is used for pairing with the deposit information according to the deposit information The endorsement data of the business requester is verified.

For the specific processing process of step S302, please refer to the related content in the above-mentioned first embodiment, which will not be repeated here.

In addition, based on the relevant content in the first embodiment, the service authorizer can generate a digital certificate for the service requester. For the above situation, it can also be processed by the following steps A2 to A6.

In step A2, a digital certificate generated by the service authorizer for the service requester is obtained, and the digital certificate is used to generate the signature data.

A digital certificate refers to a digital authentication that marks the identity information of all parties in an Internet transaction. The digital certificate can encrypt or decrypt information and data exchanged by users on the Internet, thereby ensuring the integrity and security of the information and data. . The basic structure of a digital certificate is a pair of keys through which encryption and decryption can be implemented. The keys can include a private key and a public key. The private key can be used for signature and decryption, and the public key can be used for signature verification and encryption, etc. .

In the implementation, the business requester can apply to the business authorizer for the access or execution authority of a certain business, and the business authorizer can obtain the relevant data of the business requester, and based on the above data, whether the business requester has access or executes the service The qualification of the business is verified. If it is determined that the business requester has the qualifications to access or perform the business, a digital certificate can be generated for the business requester, and the generated digital certificate can be sent to the business requester. In addition, the business authorizer can also send the generated digital certificate to the blockchain node to store the digital certificate, or the blockchain node can query the business authorizer for the newly created digital certificate regularly or irregularly. The newly created digital certificate can be pulled from the terminal device of the service authorizer, so that the blockchain node can obtain the digital certificate generated by the service authorizer for the service requester.

In step A4, the digital identity information of the service requester is obtained.

Digital identity information refers to information that identifiably portrays the business requester or business authorizer through digital information, that is, the real identity information is condensed into the form of a digital code, so as to provide personal information to the business requester or business authorizer. Binding, querying and verifying the real-time behavioral information. Digital identity information can include not only the birth information, individual descriptions, biometrics, and other identity coding information of the business requester or business authorizer, but also personal behavior information with multiple attributes (such as transaction information or entertainment information). Digital identity information can be displayed in a variety of ways, such as DID (Decentralized Identity) and so on.

In step A6, the above-mentioned digital certificate is stored in association with the digital identity information of the service requester.

In implementation, the above-mentioned digital certificate can be associated with the digital identity information of the service requester, and the above-mentioned digital certificate can be stored correspondingly with the digital identity information of the service requester. In practical applications, the business authorizer can issue one or more digital certificates for each business requester, and different business authorizers can also issue one or more digital certificates for each business requester. A digital certificate can be associated with the digital identity information of the business requester, and can be stored in the blockchain accordingly.

Based on the above-mentioned related content, the above-mentioned certificate information may include one or more of the following: the key of the digital certificate (such as the public key of the digital certificate, etc.), the information of the issuer of the digital certificate (that is, the relevant information of the business authorizing party) , The user information of the digital certificate (i.e. the relevant information of the service requester), the relationship information between the digital certificate and the issuer (i.e. the relationship information between the digital certificate and the business authorizing party), the relationship information between the digital certificate and the user (i.e. The relationship information between the digital certificate and the service requester), etc., in actual applications, in addition to the above information, the deposit information can also include a variety of other information, which can be set according to the actual situation. The embodiment of this specification There is no restriction on this.

In step S304, a first service request from the service requester is received, and the first service request includes service data and endorsement data.

The first service request may be a resource application request, and the resource application request may be a request to apply for a certain resource credit line from a service authorizing party, such as a financing request. The signed data may be data obtained by signing relevant information provided by the service requester (such as information related to the service requester, etc.) through a digital certificate.

In step S306, the first smart contract is called to verify the above-mentioned signed data, and the verification result is obtained.

In step S308, if the verification result is passed, the service data and the signature data are sent to the service authorizer.

In practical applications, in addition to verifying the above-mentioned endorsed data, other data in the first service request can also be verified. An optional processing method is provided below, which specifically includes the following steps S310 and S312 deal with.

In step S310, the first smart contract is called to verify the authenticity of the business data, and the verification result of the business data is obtained.

In implementation, the first smart contract can also be set up with rules to verify the authenticity of the business data in the first business request. When the blockchain node calls the first smart contract to verify the above signed data, and the verification passes After that, the first smart contract can be called again, and the authenticity of the business data can be verified through the rules set in the first smart contract to verify the authenticity of the business data in the first business request, which can be as specific as the blockchain node. Obtain data related to the above-mentioned business data of the business requester from the business requester and other trusted information sources, and verify the authenticity of the business data in the first business request through the rules set in the first smart contract , Compare or match the acquired data with the above-mentioned business data to verify the authenticity of the business data, and finally obtain the verification result of the business data. For example, if the business requester is an online freight agency, and the corresponding business data can be data such as waybills and logistics, the blockchain node can obtain the waybill and logistics with the business requester from the business requester and other trusted information sources. Related data, and the obtained data can be matched or compared with the above-mentioned business data, so as to determine the authenticity of the business data provided by the business requester. At the same time, it can also determine the business status of the business requester and other related information. Determine the information as the basis for subsequent processing.

In step S312, the verification result of the business data is sent to the business authorizing party, so that the business authorizing party performs business processing based on the verification result of the business data and the business data after the second verification of the aforesaid data is passed, Get the processing result.

In the implementation, since the blockchain node has verified the authenticity of the business data provided by the business requester, the verification results have a high degree of credibility, so the business authorizing party will pass the second verification of the above-mentioned endorsed data. Then, based on the verification result of the business data and the business data, the business corresponding to the first business request can be processed to obtain the corresponding processing result. For the specific processing process, please refer to the relevant content of step S108 in the first embodiment. This will not be repeated here.

In step S314, the processing result returned by the service authorizer is received, and the processing result is returned to the service requester.

In actual applications, after the above processing result, the service related business request initiated by the service requester corresponding to the above service data can also be processed based on the processing result, which may specifically include the following processing of step S316 and step S318.

In step S316, a second smart contract is generated according to the above processing result and the processing rules of the business corresponding to the above business data, and the second smart contract is deployed in the blockchain.

The business processing rules corresponding to the above business data can include multiple types. For example, if the first business request is a resource application request, the above processing rules can include, for example, resource use rules (e.g., the maximum amount spent each time, the spent time Etc.), the usage rules of the requested resource (such as the scope or field of use of the resource, etc.). The second smart contract may be a smart contract different from the above-mentioned first smart contract. In practical applications, the second smart contract and the first smart contract can also be combined into one smart contract for use, which is not limited in the embodiment of this specification.

In implementation, the blockchain node can determine the business processing rules corresponding to the business data for the business corresponding to the business data, and can generate corresponding intelligence based on the processing results and the business processing rules corresponding to the business data. Contract (that is, the second smart contract), and the second smart contract can be deployed to the blockchain network where the blockchain node is located. The blockchain node initiates the above-mentioned business data to the business requester through the second smart contract The second service request related to the corresponding service is processed.

In step S318, when a second service request related to the service corresponding to the above-mentioned service data initiated by the service requester is received, the second smart contract is called to process the second service request, and the obtained second service request is The processing result is sent to the service authorizer and service requester.

The second service request can be a resource expenditure request, which can be a request to withdraw a certain amount of resources from the credit limit of the resource that has been applied for. For example, if the credit limit of the resource that has been applied for is 100,000 yuan, the resource The request for disbursement may be a request for disbursing 50,000 yuan from it, etc.

In implementation, after the business requester obtains the above processing result, it can make a business request to the blockchain node or the business authorizer. Specifically, the relevant page of the business request can be set in advance, and the page can be set with a certain item or For multiple service requests, the service requester can open the above-mentioned page through the terminal device, and enter the relevant page of the corresponding service (such as resource utilization service, etc.) through the above-mentioned request entrance. The information entered in the input box generates a second service request, which can be sent to the blockchain node, so that the blockchain node can receive the second service request from the service requester.

After the blockchain node receives the second business request related to the business corresponding to the above business data initiated by the business requester, it can call the second smart contract to process the second business request, and process the obtained second business request The result is sent to the service authorizer and service requester. Specifically, the second service request may be a resource utilization request, and the second service request may include the number of resources that need to be used. At this time, the blockchain node may assign the first 2. The number of resources that need to be spent in the service request is compared with the credit limit of the resource that has been applied for. If the number of resources that needs to be spent is less than or equal to the credit limit of the resource that has been applied for, you can authorize the business The party sends a second service request so that the service authorizer transfers the resources that need to be spent to the service requester. If the amount of resources that needs to be spent is greater than the credit limit of the resource that has been applied for, it can refuse to perform to the service requester Resource utilization processing, and at the same time, corresponding notification messages can be sent to the service requester and service authorizer.

The embodiment of this specification provides a service processing method. The first smart contract is deployed by the service authorizer to the deposit information generated by the service requester. When the first service request of the service requester is received, the first smart contract is called to the second The signature data in a business request is verified. If the verification is passed, the business data and the signature data are sent to the business authorizing party for secondary verification. In this way, the business requester uploads the data signature to the blockchain platform, The blockchain platform performs multi-party data processing (such as data comparison, etc.) on the data, so that the processed data has higher credibility, thereby increasing the possibility of obtaining higher authority from the business authorized party. The blockchain platform performs financial-level verification and verification of the business requester, making the data transmitted between the business authorizing party and the business requesting party more secure, and it can also be based on the processing results of the business authorizing party and the corresponding business data. The business processing rules, generate a second smart contract, and process the second business request related to the business corresponding to the business data initiated by the business requester through the second smart contract, which reduces the risk of business processing (such as financing, etc.), so that The security and reliability of business processing are improved.

Example three

As shown in Figure 4, the embodiment of this specification provides a service processing method. The execution subject of the method can be the terminal device of the service authorizer, and the service authorizer can execute or access one or more different services to the service requester. The authorizing party, such as financial institutions (such as banks, etc.), the terminal equipment of the business authorizing party can be mobile terminal equipment such as mobile phones, tablet computers, personal computers and other equipment, or an independent server or multiple devices. A server cluster composed of two servers, etc. The method may specifically include the following steps: in step S402, a digital certificate and certificate information for the service requester are generated.

In step S404, the above-mentioned digital certificate is issued to the service requester, and the above-mentioned deposit information is sent to a predetermined blockchain node, so that the blockchain node deploys the first smart contract based on the deposit information, and the first smart contract uses The signature data of the service requester is verified according to the deposit information, and when the first service request of the service requester is received, the first smart contract is invoked to verify the signature data, and the verification result is obtained.

In step S406, the business data and the signature data sent by the blockchain node are received, the business data and the signature data are sent by the blockchain node when the above verification result is passed, and the signature data is generated based on the above digital certificate The data.

In step S408, the second verification is performed on the above-mentioned signed data. If the verification is passed, the business processing is performed based on the above-mentioned business data to obtain the processing result, and the processing result is returned to the blockchain node, so that the blockchain node Based on the processing result, the second service request initiated by the service requester and related to the service corresponding to the above-mentioned service data is processed.

For the specific processing procedures of the foregoing steps S402 to S408, please refer to the related content in the foregoing Embodiment 1 and Embodiment 2, which will not be repeated here.

Embodiment four

As shown in Figure 5, the embodiment of this specification provides a service processing method. The execution subject of the method can be the terminal equipment of the service authorizer, and the service authorizer can execute or access one or more different services to the service requester. The authorizing party, such as financial institutions (such as banks, etc.), the terminal equipment of the business authorizing party can be mobile terminal equipment such as mobile phones, tablet computers, personal computers and other equipment, or an independent server or multiple devices. A server cluster composed of two servers, etc. The method may specifically include the following steps: In step S502, a digital certificate and certificate information for the service requester are generated.

The deposit information may include one or more of the following: digital certificate key, digital certificate issuer information, digital certificate user information, digital certificate and issuer relationship information, digital certificate and user relationship information.

In step S504, a verifiable statement is generated based on the above-mentioned digital certificate.

A verifiable statement can be a kind of normative information used to describe certain attributes of individuals, organizations, and other entities. A verifiable statement can realize evidence-based trust, and a verifiable statement can prove to other entities that certain attributes of the current entity The information of these attributes is credible.

In implementation, after the digital certificate is obtained through the processing of the above step S502, in order to ensure the accuracy of the digital certificate, a verifiable statement can be generated based on the digital certificate, and the content of the digital certificate can be written into the verifiable statement, or, The data of the digital certificate can be stored in a predetermined storage area or storage component, and the storage address of the digital certificate can be written into the verifiable statement. In addition, the verifiable statement may also include relevant information about the business authorizer who issued the verifiable statement, such as information that can be used to verify or prove the identity of the business authorizer, etc., which can be set according to actual conditions. There is no restriction on this.

In order to ensure the security of the information in the verifiable statement, some information in the verifiable statement can also be encrypted to obtain the ciphertext corresponding to the information, and the remaining information in the verifiable statement can be kept in plaintext.

In step S506, the verifiable statement is issued to the service requester, and the above-mentioned deposit information is sent to the predetermined blockchain node, so that the blockchain node deploys the first smart contract based on the deposit information, and the first smart contract uses The signature data of the service requester is verified according to the deposit information, and when the first service request of the service requester is received, the first smart contract is invoked to verify the signature data, and the verification result is obtained.

The first service request may be a resource application request.

In implementation, after the verifiable statement is obtained through the processing of the above step S504, the verifiable statement can be issued to the corresponding service requester respectively. After the business requester obtains the verifiable statement, the received verifiable statement can be verified. If the verification result is passed, the corresponding digital certificate can be obtained based on the verifiable statement, and the business requester can store the obtained digital certificate In the above manner, the service requester can obtain and store a digital certificate based on the received verifiable statement.

In step S508, the above-mentioned business data and endorsement data sent by the blockchain node are received. The business data and endorsement data are sent by the blockchain node when the above-mentioned verification result is passed, and the endorsement data is generated based on the digital certificate. The data.

In step S510, the second verification is performed on the above-mentioned signed data. If the verification is passed, business processing is performed based on the above-mentioned business data to obtain the processing result, and the processing result is returned to the blockchain node so that the blockchain node Based on the foregoing processing result, the second service request initiated by the service requester and related to the service corresponding to the foregoing service data is processed.

The second service request may be a resource expenditure request.

The embodiment of this specification provides a service processing method. The first smart contract is deployed by the service authorizer to the deposit information generated by the service requester. When the first service request of the service requester is received, the first smart contract is called to the second The signature data in a business request is verified. If the verification is passed, the business data and the signature data are sent to the business authorizing party for secondary verification. In this way, the business requester uploads the data signature to the blockchain platform, The blockchain platform performs multi-party data processing (such as data comparison, etc.) on the data, so that the processed data has higher credibility, thereby increasing the possibility of obtaining higher authority from the business authorized party. The blockchain platform performs financial-level verification and signature verification on the business requester, making the data transmitted between the business authorizing party and the business requesting party more secure, and it can also issue digital certificates to the business requesting party through a verifiable statement. , Which reduces the risk of business processing (such as financing, etc.), and further improves the security and reliability of business processing.

Embodiment five

As shown in Figure 6, the embodiment of this specification provides a service processing method. The execution subject of the method can be a blockchain node and a terminal device of a service authorizer, and the blockchain node and a terminal device of the service authorizer can be a terminal. Device or server, terminal device can be mobile terminal device such as mobile phone, tablet computer, or device such as personal computer. The server can be an independent server, or a server cluster composed of multiple servers. The method may specifically include the following steps: In step S602, the service authorizing party generates a digital certificate and deposit information for the service requesting party.

In step S604, the service authorizer generates a verifiable statement based on the aforementioned digital certificate, issues the verifiable statement to the service requester, and sends the aforementioned certificate information to a predetermined blockchain node.

In step S606, the blockchain node deploys a first smart contract based on the deposit information, and the first smart contract is used to verify the signature data of the service requester according to the deposit information.

In addition, based on the relevant content in the first embodiment above, the service authorizer can generate a digital certificate for the service requester. In view of the above situation, it can also be handled in the following way: the blockchain node obtains the information generated by the service authorizer for the service requester. A digital certificate, which is used to generate signature data; obtain the digital identity information of the service requester, and store the above-mentioned digital certificate in association with the digital identity information of the service requester.

In step S608, the blockchain node receives a first service request from the service requester, and the first service request includes service data and endorsement data.

In step S610, the blockchain node invokes the first smart contract to verify the above-mentioned signature data, and obtain the verification result.

In step S612, if the verification result is passed, the blockchain node sends the above-mentioned service data and signature data to the service authorizer.

In actual applications, in addition to verifying the above-mentioned endorsed data, other data in the first service request can also be verified. An optional processing method is provided below, which specifically includes the following steps S614 and S616 deal with.

In step S614, the blockchain node invokes the first smart contract to verify the authenticity of the business data, and obtain the verification result of the business data.

In step S616, the blockchain node sends the verification result of the business data to the business authorizer.

The above steps S614 and S616 are only an optional processing flow. In actual applications, the processing of the above steps S614 and S616 can also be set before step S610, or set between step S610 and step S612, or set in It is executed synchronously with step S610 and step S612, and can be specifically set according to actual conditions.

In step S618, the service authorizing party performs secondary verification on the above-mentioned signed data, and if the verification is passed, the service processing is performed based on the above-mentioned service data to obtain the processing result, and the processing result is returned to the blockchain node.

In step S620, the blockchain node returns the foregoing processing result to the service requester, and based on the processing result, processes the second service request initiated by the service requester and related to the service corresponding to the foregoing service data.

In practical applications, for the above processing results, the business request initiated by the service requester corresponding to the above business data can also be processed based on the processing results, which may specifically include the following content: according to the above processing results and the above The business processing rules corresponding to the business data are generated, the second smart contract is generated, and the second smart contract is deployed in the blockchain; when the blockchain node receives the second business related to the business corresponding to the above business data initiated by the business requester When a service request is made, the second smart contract is called to process the second service request, and the obtained processing result of the second service request is sent to the service authorizer and the service requester.

The embodiment of this specification provides a service processing method. The first smart contract is deployed by the service authorizer to the deposit information generated by the service requester. When the first service request of the service requester is received, the first smart contract is called to the second The signature data in a business request is verified. If the verification is passed, the business data and the signature data are sent to the business authorizing party for secondary verification. In this way, the business requester uploads the data signature to the blockchain platform, The blockchain platform performs multi-party data processing (such as data comparison, etc.) on the data, so that the processed data has higher credibility, thereby increasing the possibility of obtaining higher authority from the business authorized party. The blockchain platform performs financial-level verification and verification of the business requester, making the data transmitted between the business authorizing party and the business requesting party more secure, and it can also be based on the processing results of the business authorizing party and the corresponding business data. The business processing rules generate a second smart contract, and the second business request initiated by the business requester and related to the business data corresponding to the business data is processed through the second smart contract, so that the security and reliability of business processing are improved. In addition, a digital certificate can also be issued to the business requester through a verifiable statement, which reduces the risk of business processing (such as financing, etc.), and further improves the security and reliability of business processing.

Example Six

This embodiment will describe in detail a business processing method provided by the embodiment of the present invention in combination with specific application scenarios. The corresponding application scenario is an application scenario in which a business requester (such as a certain enterprise or organization) requests financing from a financial institution , The first business request can be an application request for a credit line of a resource, the second business request can be a resource expenditure request, and the business authorized party can be a financial institution.

As shown in Figure 7, the embodiment of this specification provides a business processing method. The execution subject of the method can be a blockchain node and a terminal device of a financial institution. The blockchain node and a terminal device of the financial institution can be a terminal device or Servers and terminal devices can be mobile terminal devices such as mobile phones and tablet computers, or devices such as personal computers. The server can be an independent server or a server cluster composed of multiple servers. The method may specifically include the following steps: In step S702, the financial institution generates a digital certificate and deposit information for the service requester.

In step S704, the financial institution generates a verifiable statement based on the above-mentioned digital certificate, issues the verifiable statement to the service requester, and sends the above-mentioned deposit information to a predetermined blockchain node.

In step S706, the blockchain node deploys a first smart contract based on the deposit information, and the first smart contract is used to verify the signature data of the service requester according to the deposit information.

In addition, based on the relevant content in the first embodiment above, the financial institution can generate a digital certificate for the business requester. In view of the above situation, it can also be handled in the following way: the blockchain node obtains the digital certificate generated by the financial institution for the business requester , The digital certificate is used to generate the signature data; to obtain the digital identity information of the service requester, and store the above-mentioned digital certificate in association with the digital identity information of the service requester.

In step S708, the blockchain node receives an application request for the credit line of the resource of the service requester, and the application request includes the service data and the endorsement data.

In step S710, the blockchain node invokes the first smart contract to verify the above-mentioned signature data, and obtain the verification result.

In step S712, if the verification result is passed, the blockchain node sends the above-mentioned business data and signature data to the financial institution.

In actual applications, in addition to verifying the above-mentioned endorsed data, other data in the first service request can also be verified. The following provides an optional processing method, which can specifically include the following steps S714 and S716 deal with.

In step S714, the blockchain node invokes the first smart contract to verify the authenticity of the business data, and obtain the verification result of the business data.

In step S716, the blockchain node sends the verification result of the above-mentioned business data to the financial institution.

In step S718, the financial institution performs secondary verification on the above-mentioned endorsed data. If the verification is passed, it will perform business processing based on the above-mentioned business data to obtain the result of the application for the credit line of the resource, and return the result of the application to the blockchain node .

In step S720, the blockchain node returns the foregoing application result to the service requester, and processes the resource utilization request initiated by the service requester based on the application result.

In practical applications, in response to the above processing results, the resource expenditure request initiated by the service requester can also be processed based on the application result, which may specifically include the following: processing according to the above application result and the service corresponding to the above business data Rules, generate a second smart contract, and deploy the second smart contract in the blockchain; when the blockchain node receives a resource utilization request initiated by the business requester, the second smart contract is called to process the resource utilization request , And send the processing result of the obtained resource expenditure request to the financial institution and the business requester.

The embodiment of this specification provides a business processing method based on the deployment of the first smart contract to the deposit information generated by the business requester by the business authorizer. When the first business request of the business requester is received, the first smart contract is called to The signature data in the first business request is verified. If the verification is passed, the business data and the signature data are sent to the business authorizing party for secondary verification. In this way, the business requester uploads the data to the blockchain platform by the signature , The blockchain platform performs multi-party data processing (such as data comparison, etc.) on the data, so that the processed data has higher credibility, thereby increasing the possibility of obtaining higher authority from the business authorized party. The blockchain platform performs financial-level verification and verification of the business requester, making the data transmitted between the business authorizing party and the business requesting party more secure, and it can also be based on the processing result of the business authorizing party and corresponding to the above-mentioned business data The second smart contract is generated by the business processing rules of, and the second business request related to the business corresponding to the business data initiated by the business requester is processed through the second smart contract, so that the security and reliability of business processing are improved. In addition, the digital certificate can also be issued to the business requester through a verifiable statement, which reduces the risk of financing and credit, and further improves the security and reliability of business processing.

Example Seven

As shown in Figure 8, the embodiment of this specification provides a blockchain-based business processing method. The execution subject of the method may be the first blockchain node in the first blockchain, and the first blockchain node may be A terminal device or server. The terminal device can be a mobile terminal device such as a mobile phone, a tablet computer, or a device such as a personal computer. The server can be an independent server, or a server cluster composed of multiple servers. The system architecture involved in the embodiments of this specification can be shown in Figure 9, that is, the business authorized party in the above embodiment can construct a blockchain (ie, the second blockchain), and each different business authorized party can be used as the second area. A node in the block chain. The method may specifically include the following steps: in step S802, the second blockchain node is obtained from the second blockchain through the cross-chain transmission channel of the second blockchain corresponding to the first blockchain and the business authorization agency For the deposit information generated by the service requester, a first smart contract is deployed based on the deposit information, and the first smart contract is used to verify the signature data of the service requester according to the deposit information.

The deposit information may include one or more of the following: digital certificate key, digital certificate issuer information, digital certificate user information, digital certificate and issuer relationship information, digital certificate and user relationship information. The business authorization institution may be an institution or organization where the business authorization party is located in the above embodiment, and the second blockchain corresponding to the business authorization institution may be, for example, the blockchain corresponding to a financial institution. The cross-chain transmission channel is the channel used by the first blockchain and the second blockchain for cross-chain information transmission. The cross-chain transmission channel can be set based on preset rules or protocols, which can be set according to actual conditions. The embodiments of this specification do not limit this.

In addition, the second blockchain node in the second blockchain can generate a digital certificate for the business requester. For the above situation, it can also be handled in the following way: through the above-mentioned cross-chain transmission channel, from the second blockchain Obtain the digital certificate generated by the second blockchain node for the service requester, the digital certificate is used to generate the above-mentioned endorsed data; obtain the digital identity information of the service requester; and the digital certificate and the digital identity information of the service requester Associated storage.

In step S804, a first service request from the service requester is received, where the first service request includes service data and endorsement data.

In step S806, the first smart contract is invoked to verify the above-mentioned signed data, and the verification result is obtained.

In step S808, if the verification result is passed, the above-mentioned business data and signature data are sent to the second blockchain node in the second blockchain through the above-mentioned cross-chain transmission channel, so that the second blockchain The node performs secondary verification on the signed data, and after the verification is passed, performs business processing based on the business data to obtain the processing result.

In addition, in addition to verifying the above-mentioned signed data, other data in the first business request can also be verified. The following provides an optional processing method, which may specifically include the following: The authenticity of the business data is verified to obtain the verification result of the business data; the verification result of the business data is sent to the second block chain node in the second block chain through the above-mentioned cross-chain transmission channel, so that the second zone After the block chain node passes the second verification of the above-mentioned signed data, it performs business processing based on the verification result of the business data and the business data to obtain the processing result.

In step S810, through the above-mentioned cross-chain transmission channel, the processing result returned by the second blockchain node is received, and the processing result is returned to the service requester, and based on the processing result, the data corresponding to the above-mentioned service data initiated by the service requester The business-related second business request is processed.

The specific processing methods for processing the second service request related to the business corresponding to the above-mentioned business data initiated by the service requester based on the above-mentioned processing result can be various, and an optional processing method is provided below, which may specifically include the following content : According to the above processing results and the business processing rules corresponding to the above business data, a second smart contract is generated, and the second smart contract is deployed in the first blockchain; when the business requester initiates the request and corresponds to the business data When the second business request is related to the business, the second smart contract is called to process the second business request, and the processing result of the second business request is sent to the second blockchain through the above-mentioned cross-chain transmission channel The second blockchain node.

In addition, in actual applications, the first service request may be a resource application request, and the second service request may be a resource expenditure request.

For the processing procedures of the foregoing steps S802 to S810, reference may be made to the relevant content in the foregoing embodiment, and details are not described herein again.

The embodiment of this specification provides a blockchain-based business processing method. The first smart contract is deployed to the deposit information generated by the business requester through the second blockchain node in the second blockchain. When the business request is received When the party’s first business request is made, the first smart contract is called to verify the signature data in the first business request. If the verification is passed, the business data and signature data are sent to the business authorizing party through the cross-chain transmission channel. In this way, the business requester uploads the data to the first blockchain platform by adding signatures, and the first blockchain platform performs multi-party data processing (such as data comparison, etc.) on the data, so that the processed data has more High credibility, thereby increasing the possibility of obtaining higher authority from the second blockchain, and performing financial-level verification and verification of the business requester through the first blockchain platform, reducing business processing ( Such as financing, etc.) make the data transmitted between the second blockchain and the business requester more secure.

Example eight

As shown in FIG. 10, the embodiment of this specification provides a blockchain-based business processing method. The execution subject of the method may be a second blockchain node in the second blockchain, and the second blockchain node may be A terminal device or server. The terminal device can be a mobile terminal device such as a mobile phone, a tablet computer, or a device such as a personal computer. The server can be an independent server, or a server cluster composed of multiple servers. The method may specifically include the following steps: in step S1002, the digital certificate and certificate information of the service requester are directed.

In step S1004, the above-mentioned digital certificate is issued to the service requester, and the deposit is sent to the first blockchain node of the first blockchain through the cross-chain transmission channel of the first blockchain and the second blockchain. Certificate information, so that the first blockchain node deploys the first smart contract based on the deposit information. The first smart contract is used to verify the signature data of the business requester according to the deposit information, and when the business request is received When the party’s first business request, the first smart contract is called to verify the signed data, and the verification result is obtained.

In addition, there are various processing methods for issuing a digital certificate to a business requester. An optional processing method is provided below, which may specifically include the following: generate a verifiable statement based on the above digital certificate; issue a verifiable statement to the business Requester.

In step S1006, through the above-mentioned cross-chain transmission channel, the above-mentioned service data and endorsement data sent by the first blockchain node of the first blockchain are received. The verification result is sent when it is passed, and the signature data is data generated based on the above-mentioned digital certificate.

In step S1008, perform secondary verification on the above-mentioned signed data. If the verification is passed, perform business processing based on the above-mentioned business data to obtain the processing result, and return the above-mentioned processing result to the first blockchain of the first blockchain Node, so that the first blockchain node processes the second service request related to the service corresponding to the service data initiated by the service requester based on the processing result.

Example 9

The embodiment of this specification also provides a service processing device, as shown in FIG. 11. The service processing device includes: a contract deployment module 1101, a request receiving module 1102, a first verification module 1103, a data sending module 1104, and a processing module 1105. Among them: the contract deployment module 1101, which obtains the deposit certificate generated by the service authorizer to the service requester Information, a first smart contract is deployed based on the deposit information, and the first smart contract is used to verify the signature data of the service requester according to the deposit information; request receiving module 1102, receiving the service The first service request of the requesting party, the first service request includes service data and endorsement data; the first verification module 1103, which calls the first smart contract to verify the endorsement data, and obtains the verification result; data The sending module 1104, if the verification result is passed, sends the service data and the endorsed data to the service authorizer, so that the service authorizer can perform a second verification on the endorsed data, and after the verification is passed, it is based on The business data is processed to obtain a processing result; the processing module 1105 receives the processing result returned by the service authorizer, returns the processing result to the service requester, and performs processing on the processing result based on the processing result. The second service request related to the service corresponding to the service data initiated by the service requester is processed.

In the embodiment of this specification, the device further includes: a digital certificate obtaining module, which obtains a digital certificate generated by the service authorizer for the service requester, the digital certificate is used to generate the signature data; the identity information obtains A module to obtain the digital identity information of the service requester; an association module to store the digital certificate in association with the digital identity information of the service requester.

In the embodiment of this specification, the deposit information includes one or more of the following: the key of the digital certificate, the information of the issuer of the digital certificate, the information of the user of the digital certificate, the digital certificate The relationship information between the certificate and the issuer, and the relationship information between the digital certificate and the user.

In the embodiment of this specification, the processing module 1105 includes: a contract generation unit, which generates a second smart contract according to the processing result and the processing rules of the business corresponding to the business data, and deploys the second smart contract In the blockchain; the processing unit, when receiving a second service request related to the service corresponding to the service data initiated by the service requester, invokes the second smart contract to perform the second service request Processing, and sending the obtained processing result of the second service request to the service authorizing party and the service requesting party.

In the embodiment of this specification, the first service request is a resource application request, and the second service request is a resource expenditure request.

In the embodiment of this specification, the device further includes: a second verification module, which invokes the first smart contract to verify the authenticity of the business data, and obtains the verification result of the business data; the result sending module sends the verification result of the business data; The verification result of the business data is sent to the business authorizing party, so that the business authorizing party performs business processing based on the verification result of the business data and the business data after the second verification of the signed data is passed, Get the processing result.

The embodiment of this specification provides a service processing device. The first smart contract is deployed by the service authorizer to the deposit information generated by the service requester. When the first service request of the service requester is received, the first smart contract is called to the second The signature data in a business request is verified. If the verification is passed, the business data and the signature data are sent to the business authorizing party for secondary verification. In this way, the business requester uploads the data signature to the blockchain platform, The blockchain platform performs multi-party data processing (such as data comparison, etc.) on the data, so that the processed data has higher credibility, thereby increasing the possibility of obtaining higher authority from the business authorized party. The blockchain platform performs financial-level verification and signature verification on the business requester, making the data transmitted between the business authorizing party and the business requesting party more secure, and it can also perform transactions initiated by the business requesting party based on the processing results of the business authorizing party. The business-related second business request corresponding to the business data is processed, which reduces the risk of business processing (such as financing, etc.), and improves the security and reliability of business processing.

Example ten

The embodiment of this specification also provides a service processing device, as shown in FIG. 12. The service processing device includes: a generating module 1201, a sending module 1202, a data receiving module 1203, and a secondary verification module 1204. The generating module 1201 generates a digital certificate and deposit information for the service requester; The digital certificate is issued to the service requester, and the deposit information is sent to a predetermined blockchain node, so that the blockchain node deploys a first smart contract based on the deposit information, and the first smart The contract is used to verify the endorsement data of the service requester according to the deposit information, and when the first service request of the service requester is received, call the first smart contract to endorse the endorsement The data is verified, and the verification result is obtained; the data receiving module 1203 receives the business data and endorsement data sent by the blockchain node, where the business data and endorsement data are the verification results of the blockchain node The result is sent when the result is passed, the endorsed data is data generated based on the digital certificate; the secondary verification module 1204 performs a second verification on the endorsed data, and if the verification is passed, the business is performed based on the business data Processing to obtain the processing result, and return the processing result to the blockchain node, so that the blockchain node initiates the business corresponding to the business data to the business requester based on the processing result The related second service request is processed.

In the embodiment of this specification, the sending module 1202 includes: a processing unit that generates a verifiable statement based on the digital certificate; and a sending unit that issues the verifiable statement to the service requester.

Example 11

The embodiment of this specification also provides a business processing device based on blockchain, as shown in FIG. 13. The blockchain-based business processing device includes: an information acquisition and contract deployment module 1301, a request module 1302, a calling module 1303, a cross-chain transmission module 1304, and a processing module 1305. Among them: an information acquisition and contract deployment module 1301. The first block chain and the cross-chain transmission channel of the second block chain corresponding to the business authorization agency obtain the deposit information generated by the second block chain node to the business requester from the second block chain. The deposit certificate information deploys a first smart contract, and the first smart contract is used to verify the signature data of the service requester according to the deposit information; the request module 1302 receives the first smart contract of the service requester. Service request, the first service request includes service data and endorsement data; call module 1303, call the first smart contract to verify the endorsement data, and obtain the verification result; cross-chain transmission module 1304, if verified If the result is passed, the business data and endorsement data are sent to the second blockchain node in the second blockchain through the cross-chain transmission channel, so that the second block The chain node performs secondary verification on the signed data, and after the verification is passed, performs business processing based on the business data to obtain the processing result; the processing module 1305 receives the second blockchain node through the cross-chain transmission channel For the returned processing result, the processing result is returned to the service requester, and a second service request related to the service corresponding to the service data initiated by the service requester is processed based on the processing result.

In the embodiment of this specification, the device further includes: a certificate obtaining module, which obtains from the second block chain the information generated by the second block chain node for the service requester through the cross-chain transmission channel A digital certificate, the digital certificate is used to generate the signature data; an identity information acquisition module, which acquires the digital identity information of the service requester; an association module, which combines the digital certificate with the digital identity information of the service requester Associated storage.

In the embodiment of this specification, the processing module 1305 includes: a contract generation unit, which generates a second smart contract according to the processing result and the processing rules of the business corresponding to the business data, and deploys the second smart contract In the first blockchain; the processing unit, when receiving a second service request related to the service corresponding to the service data initiated by the service requester, call the second smart contract to the first 2. The service request is processed, and the obtained processing result of the second service request is sent to the second blockchain node in the second blockchain through the cross-chain transmission channel.

In the embodiment of this specification, the device further includes: a verification module, which invokes the first smart contract to verify the authenticity of the business data, and obtains the verification result of the business data; and the result sending module passes the cross-chain The transmission channel, which sends the verification result of the business data to the second blockchain node in the second blockchain, so that the second blockchain node performs a secondary operation on the signed data After the verification is passed, business processing is performed based on the verification result of the business data and the business data to obtain the processing result.

The embodiment of this specification provides a blockchain-based business processing device, which deploys the first smart contract to the deposit information generated by the business requester through the second blockchain node in the second blockchain, and when the business request is received When the party’s first business request is made, the first smart contract is called to verify the signature data in the first business request. If the verification is passed, the business data and signature data are sent to the business authorizing party through the cross-chain transmission channel. In this way, the business requester uploads the data to the first blockchain platform by adding signatures, and the first blockchain platform performs multi-party data processing (such as data comparison, etc.) on the data, so that the processed data has more High credibility, thereby increasing the possibility of obtaining higher authority from the second blockchain, and performing financial-level verification and verification of the business requester through the first blockchain platform, reducing business processing ( Such as financing, etc.) make the data transmitted between the second blockchain and the business requester more secure.

Embodiment 12

The embodiment of this specification also provides a business processing device based on the blockchain, as shown in FIG. 14. The blockchain-based business processing device includes: a certificate and information generating module 1401, a certificate and information sending module 1402, a data receiving module 1403, and a verification module 1404. Among them: a certificate and information generating module 1401, which generates a number for the business requester Certificate and deposit information; the certificate and information sending module 1402, which issues the digital certificate to the service requester, and sends the digital certificate to the The first blockchain node of the first blockchain sends the deposit information, so that the first blockchain node deploys a first smart contract based on the deposit information, and the first smart contract is used according to The deposit information verifies the endorsed data of the service requester, and upon receiving the first service request of the service requester, calls the first smart contract to verify the endorsed data, Obtain the verification result; the data receiving module 1403, through the cross-chain transmission channel, receives the business data and endorsement data sent by the first blockchain node of the first blockchain, the business data and endorsement The data is sent by the first blockchain node when the verification result is passed, and the endorsement data is data generated based on the digital certificate; the verification module 1404 performs secondary verification on the endorsement data, If the verification is passed, business processing is performed based on the business data to obtain the processing result, and the processing result is returned to the first blockchain node of the first blockchain, so that the first zone The block chain node processes the second service request related to the service corresponding to the service data initiated by the service requester based on the processing result.

In the embodiment of this specification, the certificate and information sending module 1402 includes: a processing unit that generates a verifiable statement based on the digital certificate; and a sending unit that issues the verifiable statement to the service requester.

Embodiment 13

The embodiment of this specification also provides a service processing device, as shown in FIG. 15. The service processing device may be the terminal device of the service authorizer provided in the foregoing embodiment or the second blockchain node that accesses the second blockchain.

Business processing equipment may have relatively large differences due to different configurations or performances, and may include one or more processors 1501 and a memory 1502, and the memory 1502 may store one or more storage applications or data. The memory 1502 may be short-term storage or persistent storage. The application program stored in the memory 1502 may include one or more modules (not shown in the figure), and each module may include a series of computer-executable instructions for the business processing device. Furthermore, the processor 1501 may be configured to communicate with the memory 1502, and execute a series of computer-executable instructions in the memory 1502 on the service processing device. The business processing equipment may also include one or more power supplies 1503, one or more wired or wireless network interfaces 1504, one or more input and output interfaces 1505, and one or more keyboards 1506.

Specifically, in this embodiment, the business processing device includes a memory and one or more programs, wherein one or more programs are stored in the memory, and one or more programs may include one or more modules, and each The module may include a series of computer-executable instructions for the business processing equipment, and the one or more programs configured to be executed by one or more processors include computer-executable instructions for performing the following: The deposit information generated by the requesting party deploys a first smart contract based on the deposit information, and the first smart contract is used to verify the signature data of the service requester according to the deposit information; receiving the The first business request of the business requester, the first business request includes business data and endorsement data; the first smart contract is called to verify the endorsement data, and the verification result is obtained; if the verification result is passed, Then the service data and the signature data are sent to the service authorizer, so that the service authorizer performs a secondary verification on the signature data, and after the verification is passed, the service processing is performed based on the service data, and the processing is obtained Result; receiving the processing result returned by the service authorizing party, returning the processing result to the service requesting party, and based on the processing result on the service requesting party initiated by the service requesting party related to the business corresponding to the service data The second business request is processed.

In the embodiment of this specification, it further includes: obtaining a digital certificate generated by the service authorizer for the service requester, where the digital certificate is used to generate the endorsement data; and obtaining the digital identity information of the service requester; The digital certificate is stored in association with the digital identity information of the service requester.

In the embodiment of the present specification, the processing of a second service request related to the service corresponding to the service data initiated by the service requester based on the processing result includes: according to the processing result and the service The processing rules of the business corresponding to the data are generated, a second smart contract is generated, and the second smart contract is deployed in the blockchain; when the second smart contract initiated by the service requester is received and the second related to the business corresponding to the business data is received When a service request is made, the second smart contract is called to process the second service request, and the obtained processing result of the second service request is sent to the service authorizer and the service requester.

In the embodiment of this specification, it further includes: invoking the first smart contract to verify the authenticity of the business data to obtain the verification result of the business data; and sending the verification result of the business data to the business authorizing party , So that the service authorizing party performs a service process based on the verification result of the service data and the service data after the second verification of the signed data is passed, and the processing result is obtained.

In addition, specifically in this embodiment, the business processing device includes a memory and one or more programs, wherein one or more programs are stored in the memory, and the one or more programs may include one or more modules, and Each module may include a series of computer-executable instructions for the business processing equipment, and the one or more programs configured to be executed by one or more processors include computer-executable instructions for performing the following: A block chain and a cross-chain transmission channel of a second block chain corresponding to a business authorization agency, from the second block chain to obtain the deposit information generated by the second block chain node to the business requester, based on the The deposit information deploys a first smart contract, and the first smart contract is used to verify the signature data of the service requester according to the deposit information; receiving the first service request of the service requester, the The first service request includes service data and endorsement data; the first smart contract is called to verify the endorsement data, and the verification result is obtained; if the verification result is passed, the cross-chain transmission channel is used to transfer all The business data and the signature data are sent to the second blockchain node in the second blockchain, so that the second blockchain node performs a secondary verification on the signature data, and the verification passes Then perform business processing based on the business data to obtain processing results; receive the processing results returned by the second blockchain node through the cross-chain transmission channel, and return the processing results to the business requester, And based on the processing result, the second service request initiated by the service requester and related to the service corresponding to the service data is processed.

In the embodiment of this specification, it further includes: obtaining a digital certificate generated by the second blockchain node for the service requester from the second blockchain through the cross-chain transmission channel, the digital certificate It is used to generate the signature data; obtain the digital identity information of the service requester; and store the digital certificate in association with the digital identity information of the service requester.

In the embodiment of the present specification, the processing of a second service request related to the service corresponding to the service data initiated by the service requester based on the processing result includes: according to the processing result and the service The processing rules of the business corresponding to the data, generate a second smart contract, and deploy the second smart contract in the first blockchain; when receiving the business initiated by the business requester and corresponding to the business data When a related second business request is made, the second smart contract is called to process the second business request, and the obtained processing result of the second business request is sent to the said cross-chain transmission channel. The second blockchain node in the second blockchain.

In the embodiment of this specification, it further includes: invoking the first smart contract to verify the authenticity of the business data to obtain the verification result of the business data; and verifying the business data through the cross-chain transmission channel The result is sent to the second blockchain node in the second blockchain, so that after the second blockchain node passes the second verification of the signed data, the data based on the business data Perform business processing on the verification result and the business data to obtain a processing result.

Embodiment Fourteen

The embodiment of this specification also provides a service processing device, as shown in FIG. 16. The service processing device may be the blockchain node provided in the above embodiment or the first blockchain node connected to the first blockchain.

Business processing equipment may have relatively large differences due to different configurations or performances, and may include one or more processors 1601 and a memory 1602, and the memory 1602 may store one or more storage applications or data. The memory 1602 may be short-term storage or persistent storage. The application program stored in the memory 1602 may include one or more modules (not shown in the figure), and each module may include a series of computer-executable instructions for the business processing device. Furthermore, the processor 1601 may be configured to communicate with the memory 1602, and execute a series of computer-executable instructions in the memory 1602 on the service processing device. The business processing equipment may also include one or more power supplies 1603, one or more wired or wireless network interfaces 1604, one or more input and output interfaces 1605, and one or more keyboards 1606.

Specifically, in this embodiment, the business processing device includes a memory and one or more programs, wherein one or more programs are stored in the memory, and one or more programs may include one or more modules, and each The module may include a series of computer-executable instructions for the business processing equipment, and the one or more programs configured to be executed by one or more processors include computer-executable instructions for performing the following: Digital certificate and deposit information; the digital certificate is issued to the service requester, and the deposit information is sent to a predetermined blockchain node, so that the blockchain node deploys the first based on the deposit information A smart contract, the first smart contract is used to verify the signature data of the service requester according to the deposit information, and when the first service request of the service requester is received, call the The first smart contract verifies the signature data to obtain a verification result; receives the business data and signature data sent by the blockchain node, where the business data and signature data are the blockchain node Send when the verification result is passed, the endorsement data is data generated based on the digital certificate; perform secondary verification on the endorsement data, and if the verification is passed, perform business processing based on the business data, Obtain the processing result, and return the processing result to the blockchain node, so that the blockchain node initiates the service-related business corresponding to the service data to the service requester based on the processing result The second service request is processed.

In the embodiment of this specification, the issuance of the digital certificate to the service requester includes: generating a verifiable statement based on the digital certificate; and issuing the verifiable statement to the service requester.

In addition, specifically in this embodiment, the business processing device includes a memory and one or more programs, wherein one or more programs are stored in the memory, and the one or more programs may include one or more modules, and Each module may include a series of computer-executable instructions for the business processing equipment, and the one or more programs configured to be executed by one or more processors include computer-executable instructions for performing the following: generate a business request Party’s digital certificate and deposit information; issue the digital certificate to the service requester, and send it to the first block through the cross-chain transmission channel of the first block chain and the second block chain The first blockchain node of the chain sends the deposit certificate information so that the first blockchain node deploys a first smart contract based on the deposit information, and the first smart contract is used to The information verifies the endorsed data of the service requester, and when the first service request of the service requester is received, the first smart contract is invoked to verify the endorsed data, and the verification result is obtained; Through the cross-chain transmission channel, receive the service data and endorsement data sent by the first blockchain node of the first blockchain, where the service data and endorsement data are the first blockchain The node sends when the verification result is passed, and the endorsed data is data generated based on the digital certificate; performs secondary verification on the endorsed data, and if the verification passes, then performs business processing based on the business data , Obtain the processing result, and return the processing result to the first blockchain node of the first blockchain, so that the first blockchain node makes a request for the business based on the processing result The second service request related to the service corresponding to the service data initiated by the party is processed.

Example 15

The embodiment of this specification also provides a service processing system, as shown in FIG. 2 or 9. The business processing system may include a blockchain node, a business authorizer, and a business requester. For the specific processing procedures that the blockchain node, business authorizer and business requester need to perform, please refer to the first embodiment to the sixth embodiment above. The related content of, I won’t repeat it here.

In addition to the above configuration, the business processing system can also be constructed in the following manner, that is, the business processing system can include a first blockchain (which may include a first blockchain node), a second blockchain (wherein It can include the second blockchain node (that is, the business authorizer) and the business requester, the first blockchain node in the first blockchain, the second blockchain node in the second blockchain, and the business requester. For the specific processing to be performed, please refer to the related content in the seventh embodiment to the eighth embodiment above, which will not be repeated here.

The embodiment of this specification provides a business processing system. The first smart contract is deployed by the business authorizer to the deposit information generated by the business requester. When the first business request of the business requester is received, the first smart contract is called to the second The signature data in a business request is verified. If the verification is passed, the business data and the signature data are sent to the business authorizing party for secondary verification. In this way, the business requester uploads the data signature to the blockchain platform, The blockchain platform performs multi-party data processing (such as data comparison, etc.) on the data, so that the processed data has higher credibility, thereby increasing the possibility of obtaining higher authority from the business authorized party. The blockchain platform performs financial-level verification and signature verification on the business requester, making the data transmitted between the business authorizing party and the business requesting party more secure, and it can also perform transactions initiated by the business requesting party based on the processing results of the business authorizing party. The business-related second business request corresponding to the business data is processed, which reduces the risk of business processing (such as financing, etc.), and improves the security and reliability of business processing.

The foregoing describes specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than in the embodiments and still achieve desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or sequential order shown in order to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

In the 1990s, the improvement of a technology can be clearly distinguished between hardware improvements (for example, improvements in circuit structures such as diodes, transistors, switches, etc.) and software improvements (improvements in method flow). However, with the development of technology, the improvement of many methods and procedures of today can be regarded as the direct improvement of the hardware circuit structure. Designers almost always get the corresponding hardware circuit structure by programming the improved method flow into the hardware circuit. Therefore, it cannot be said that the improvement of a method flow cannot be realized by the hardware entity module. For example, a Programmable Logic Device (PLD) (such as a Field Programmable Gate Array (FPGA)) is such an integrated circuit whose logic function is determined by the user's programming of the device. It is programmed by the designer to "integrate" a digital system on a piece of PLD, without having to ask the chip manufacturer to design and produce a dedicated integrated circuit chip. Moreover, nowadays, instead of manually making integrated circuit chips, this kind of programming is mostly realized by using "logic compiler" software, which is similar to the software compiler used in program development and writing, but before compilation The original code must also be written in a specific programming language, which is called Hardware Description Language (HDL), and there is not only one type of HDL, but many types, such as ABEL (Advanced Boolean Expression Language) , AHDL (Altera Hardware Description Language), Confluence, CUPL (Cornell University Programming Language), HDCal, JHDL (Java Hardware Description Language), Lava, Lola, MyHDL, PALASM, RHDL (Ruby Hardware Description), etc., currently most commonly used It is VHDL (Very-High-Speed Integrated Circuit Hardware Description Language) and Verilog. It should also be clear to those skilled in the art that just a little bit of logic programming of the method flow in the above-mentioned hardware description languages and programming into an integrated circuit can easily obtain the hardware circuit that implements the logic method flow.

The controller can be implemented in any suitable manner. For example, the controller can take the form of, for example, a microprocessor or a processor and a computer-readable medium storing computer-readable program codes (such as software or firmware) executable by the (micro)processor. , Logic gates, switches, application specific integrated circuits (ASICs), programmable logic controllers and embedded microcontrollers. Examples of controllers include but are not limited to the following microcontrollers: ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20 and Silicon Labs C8051F320, the memory controller can also be implemented as a part of the control logic of the memory. Those skilled in the art also know that, in addition to implementing the controller in a purely computer-readable program code manner, it is completely possible to program the method steps to make the controller use logic gates, switches, application specific integrated circuits, programmable logic controllers, and embedded logic. The same function can be realized in the form of a microcontroller or the like. Therefore, such a controller can be regarded as a hardware component, and the devices included in it for realizing various functions can also be regarded as a structure within the hardware component. Or even, the device for realizing various functions can be regarded as both a software module for realizing the method and a structure within a hardware component.

The systems, devices, modules, or units explained in the foregoing embodiments may be specifically implemented by computer chips or entities, or by products with certain functions. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cell phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or Any combination of these devices.

For the convenience of description, when describing the above device, the functions are divided into various units and described separately. Of course, when implementing one or more embodiments of this specification, the functions of each unit may be implemented in the same one or more software and/or hardware.

Those skilled in the art should understand that the embodiments of this specification can be provided as a method, a system, or a computer program product. Therefore, one or more embodiments of this specification may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, one or more embodiments of this specification may adopt a computer program implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes. The form of the product.

The embodiments of this specification are described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to the embodiments of this specification. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processors of general-purpose computers, special-purpose computers, embedded processors, or other programmable service processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable service processing equipment are generated It is a device that implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable business processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable service processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

In a typical configuration, the computing device includes one or more processors (CPU), input/output interfaces, network interfaces, and memory. The memory may include non-permanent 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 computer readable media. Computer-readable media includes permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology. Information can be computer-readable instructions, data structures, program modules, 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, CD-ROM, digital versatile disc (DVD) or other optical storage, Magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media can be used to store information that can be accessed by computing devices. According to the definition in this article, computer-readable media does not include transitory media, such as modulated data signals and carrier waves.

The terms "include", "include", or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, product, or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed. Elements, or also include elements inherent to such processes, methods, commodities, or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, commodity or equipment that includes the element.

Those skilled in the art should understand that the embodiments of this specification can be provided as a method, a system or a computer program product. Therefore, one or more embodiments of this specification may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, one or more embodiments of this specification may adopt a computer program implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes. The form of the product.

One or more embodiments of this specification may be described in the general context of computer-executable instructions executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform specific tasks or implement specific abstract data types. One or more embodiments of this specification can also be practiced in distributed computing environments. In these distributed computing environments, tasks are performed by remote processing devices connected through a communication network. In a distributed computing environment, program modules can be located in local and remote computer storage media including storage devices.

The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, as for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment.

The above descriptions are only examples of this specification, and are not intended to limit this specification. For those skilled in the art, this specification can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this specification shall be included in the scope of the claims of this specification.

Claims

A business processing method applied to blockchain nodes, including:

Obtain the deposit information generated by the service authorizer to the service requester, and deploy a first smart contract based on the deposit information, and the first smart contract is used to sign data of the service requester according to the deposit information authenticating;

Receiving a first service request from the service requester, where the first service request includes service data and endorsement data;

Invoke the first smart contract to verify the signed data, and obtain a verification result;

If the verification result is passed, the service data and the endorsement data are sent to the service authorizer so that the service authorizer can perform a second verification on the endorsement data, and the verification is based on the service data after passing the verification. Perform business processing and get the processing result;

Receiving the processing result returned by the service authorizer, returning the processing result to the service requesting party, and sending the service requesting party initiated by the service requesting party based on the processing result and related to the business data corresponding to the service data 2. The business request is processed.
The method according to claim 1, further comprising:

Acquiring a digital certificate generated by the service authorizer for the service requester, where the digital certificate is used to generate the endorsement data;

Acquiring the digital identity information of the service requester;

The digital certificate is stored in association with the digital identity information of the service requester.
The method according to claim 2, wherein the deposit information includes one or more of the following: a key of the digital certificate, information of an issuer of the digital certificate, information of a user of the digital certificate, The relationship information between the digital certificate and the issuer, and the relationship information between the digital certificate and the user.
The method according to any one of claims 1 to 3, wherein the processing of a second service request related to the service corresponding to the service data initiated by the service requester based on the processing result comprises:

Generating a second smart contract according to the processing result and the processing rules of the business corresponding to the business data, and deploying the second smart contract in the blockchain;

When a second service request related to the service corresponding to the service data initiated by the service requester is received, the second smart contract is called to process the second service request, and the obtained first service request is processed. 2. The processing result of the service request is sent to the service authorizing party and the service requesting party.
The method according to claim 4, wherein the first service request is a resource application request, and the second service request is a resource expenditure request.
The method according to claim 5, further comprising:

Calling the first smart contract to verify the authenticity of the business data, and obtain a verification result of the business data;

The verification result of the business data is sent to the business authorizing party, so that after the business authorizing party has passed the second verification of the signed data, the verification result of the business data and the business data are performed Business processing, get processing results.
A business processing method applied to a business authorizing party, including:

Generate digital certificates and deposit information for the business requester;

The digital certificate is issued to the service requester, and the deposit certificate information is sent to a predetermined blockchain node, so that the blockchain node deploys a first smart contract based on the deposit information. A smart contract is used to verify the signature data of the service requester according to the deposit information, and when the first service request of the service requester is received, call the first smart contract to Sign the data for verification, and get the verification result;

Receive the business data and endorsement data sent by the blockchain node, where the business data and endorsement data are sent by the blockchain node when the verification result is passed, and the endorsement data is based on Data generated by the digital certificate;

Perform secondary verification on the signed data. If the verification is passed, perform business processing based on the business data to obtain the processing result, and return the processing result to the blockchain node so that the block The chain node processes the second service request related to the service corresponding to the service data initiated by the service requester based on the processing result.
The method according to claim 7, wherein said issuing said digital certificate to said service requester comprises:

Generate a verifiable statement based on the digital certificate;

The verifiable statement is issued to the service requester.
The method according to claim 7, wherein the first service request is a resource application request, and the second service request is a resource expenditure request.
The method according to claim 7, wherein the deposit information includes one or more of the following: the key of the digital certificate, the information of the issuer of the digital certificate, the information of the user of the digital certificate, The relationship information between the digital certificate and the issuer, and the relationship information between the digital certificate and the user.
A blockchain-based business processing method, applied to the first blockchain node connected to the first blockchain, includes:

Through the cross-chain transmission channel of the second block chain corresponding to the first block chain and the business authorization agency, the deposit information generated by the second block chain node to the business requester is obtained from the second block chain Deploying a first smart contract based on the deposit information, the first smart contract being used to verify the signature data of the service requester according to the deposit information;

Receiving a first service request from the service requester, where the first service request includes service data and endorsement data;

Invoke the first smart contract to verify the signed data, and obtain a verification result;

If the verification result is passed, the business data and endorsement data are sent to the second blockchain node in the second blockchain through the cross-chain transmission channel, so that the second The blockchain node performs secondary verification on the signed data, and after the verification is passed, performs business processing based on the business data to obtain a processing result;

Through the cross-chain transmission channel, the processing result returned by the second blockchain node is received, the processing result is returned to the service requester, and the processing result is initiated to the service requester based on the processing result. The second service request related to the service corresponding to the service data is processed.
The method according to claim 11, the method further comprising:

Obtaining, from the second blockchain, a digital certificate generated by the second blockchain node for the service requester through the cross-chain transmission channel, where the digital certificate is used to generate the endorsement data;

Acquiring the digital identity information of the service requester;

The digital certificate is stored in association with the digital identity information of the service requester.
The method according to claim 11 or 12, wherein the processing of a second service request related to the service corresponding to the service data initiated by the service requester based on the processing result includes:

Generating a second smart contract according to the processing result and the processing rules of the business corresponding to the business data, and deploying the second smart contract in the first blockchain;

When a second service request related to the service corresponding to the service data initiated by the service requester is received, the second smart contract is invoked to process the second service request, and is transmitted through the cross-chain The channel sends the obtained processing result of the second service request to the second blockchain node in the second blockchain.
The method according to claim 13, further comprising:

Calling the first smart contract to verify the authenticity of the business data, and obtain a verification result of the business data;

The verification result of the business data is sent to the second blockchain node in the second blockchain through the cross-chain transmission channel, so that the second blockchain node can add After the second verification of the signed data is passed, business processing is performed based on the verification result of the business data and the business data, and the processing result is obtained.
A blockchain-based business processing method, applied to a second blockchain node connected to a second blockchain, includes:

Generate digital certificates and deposit information for the business requester;

Issue the digital certificate to the service requester, and send it to the first blockchain node of the first blockchain through the cross-chain transmission channel of the first blockchain and the second blockchain The deposit information, so that the first blockchain node deploys a first smart contract based on the deposit information, and the first smart contract is used to add to the service requester according to the deposit information To verify the signed data, and upon receiving the first service request of the service requester, call the first smart contract to verify the signed data, and obtain a verification result;

Through the cross-chain transmission channel, receive the service data and endorsement data sent by the first blockchain node of the first blockchain, where the service data and endorsement data are the first blockchain The node sends when the verification result is passed, and the endorsement data is data generated based on the digital certificate;

Perform secondary verification on the signed data. If the verification is passed, perform business processing based on the business data to obtain the processing result, and return the processing result to the first zone of the first blockchain A block chain node, so that the first block chain node processes, based on the processing result, a second service request related to the service corresponding to the service data initiated by the service requester.
A business processing device, including:

The contract deployment module obtains the deposit information generated by the business authorizing party to the service requester, and deploys a first smart contract based on the deposit information, and the first smart contract is used to make a request to the service requester according to the deposit information To verify the endorsement data;

A request receiving module to receive a first service request from the service requester, where the first service request includes service data and endorsement data;

The first verification module calls the first smart contract to verify the signed data, and obtain a verification result;

The data sending module, if the verification result is passed, sends the service data and the endorsed data to the service authorizing party, so that the service authorizing party performs secondary verification on the endorsed data, and the verification is based on The business data is processed to obtain a processing result;

The processing module receives the processing result returned by the service authorizer, returns the processing result to the service requester, and initiates the service corresponding to the service data to the service requester based on the processing result The related second service request is processed.
A business processing device, including:

The generation module generates the digital certificate and certificate information for the business requester;

A sending module, which issues the digital certificate to the service requester, and sends the deposit information to a predetermined blockchain node, so that the blockchain node deploys the first smart contract based on the deposit information, The first smart contract is used to verify the signature data of the service requester according to the deposit information, and when the first service request of the service requester is received, call the first smart contract Verifying the endorsed data to obtain a verification result;

The data receiving module receives the business data and endorsement data sent by the blockchain node. The business data and endorsement data are sent by the blockchain node when the verification result is passed. The signature data is data generated based on the digital certificate;

The secondary verification module performs secondary verification on the signed data. If the verification is passed, business processing is performed based on the business data to obtain the processing result, and the processing result is returned to the blockchain node to The blockchain node is enabled to process a second service request related to the service corresponding to the service data initiated by the service requester based on the processing result.
A business processing device based on blockchain, including:

The information acquisition and contract deployment module obtains the second blockchain node pair business from the second blockchain through the cross-chain transmission channel of the second blockchain corresponding to the first blockchain and the business authorization agency The deposit certificate information generated by the requester deploys a first smart contract based on the deposit information, and the first smart contract is used to verify the signature data of the service requester according to the deposit information;

The request module receives a first service request from the service requester, where the first service request includes service data and endorsement data;

A calling module, calling the first smart contract to verify the signed data, and obtain a verification result;

The cross-chain transmission module, if the verification result is passed, sends the business data and endorsement data to the second blockchain node in the second blockchain through the cross-chain transmission channel, so that The second blockchain node performs secondary verification on the signed data, and after the verification is passed, performs business processing based on the business data to obtain a processing result;

The processing module receives the processing result returned by the second blockchain node through the cross-chain transmission channel, returns the processing result to the service requester, and requests the service based on the processing result The second service request related to the service corresponding to the service data initiated by the party is processed.
A business processing device based on blockchain, including:

The certificate and information generation module, which generates the digital certificate and certificate information for the business requester;

The certificate and information sending module issues the digital certificate to the service requester, and sends the digital certificate to the first block chain through the cross-chain transmission channel of the first block chain and the second block chain. A blockchain node sends the deposit information so that the first blockchain node deploys a first smart contract based on the deposit information, and the first smart contract is used to check the deposit information according to the deposit information. Verifying the endorsement data of the service requester, and when receiving the first service request of the service requester, call the first smart contract to verify the endorsement data, and obtain a verification result;

The data receiving module receives the service data and endorsement data sent by the first blockchain node of the first blockchain through the cross-chain transmission channel, where the service data and endorsement data are the first A blockchain node sends when the verification result is passed, and the endorsement data is data generated based on the digital certificate;

The verification module performs secondary verification on the signed data. If the verification is passed, perform business processing based on the business data to obtain the processing result, and return the processing result to the first blockchain A first blockchain node, so that the first blockchain node processes, based on the processing result, a second service request related to the service corresponding to the service data initiated by the service requester.
A business processing device includes a processor and a memory arranged to store computer-executable instructions, which when executed, cause the processor to:

Obtain the deposit information generated by the service authorizer to the service requester, and deploy a first smart contract based on the deposit information, and the first smart contract is used to sign data of the service requester according to the deposit information authenticating;

Receiving a first service request from the service requester, where the first service request includes service data and endorsement data;

Invoke the first smart contract to verify the signed data, and obtain a verification result;

If the verification result is passed, the service data and the endorsement data are sent to the service authorizer so that the service authorizer can perform a second verification on the endorsement data, and the verification is based on the service data after passing the verification. Perform business processing and get the processing result;

Receiving the processing result returned by the service authorizer, returning the processing result to the service requesting party, and sending the service requesting party initiated by the service requesting party based on the processing result and related to the business data corresponding to the service data 2. The business request is processed.
A business processing device includes a processor and a memory arranged to store computer-executable instructions, which when executed, cause the processor to:

Generate digital certificates and deposit information for the business requester;

The digital certificate is issued to the service requester, and the deposit certificate information is sent to a predetermined blockchain node, so that the blockchain node deploys a first smart contract based on the deposit information. A smart contract is used to verify the signature data of the service requester according to the deposit information, and when the first service request of the service requester is received, call the first smart contract to Sign the data for verification, and get the verification result;

Receive the business data and endorsement data sent by the blockchain node, where the business data and endorsement data are sent by the blockchain node when the verification result is passed, and the endorsement data is based on Data generated by the digital certificate;

Perform secondary verification on the signed data. If the verification is passed, perform business processing based on the business data to obtain the processing result, and return the processing result to the blockchain node so that the block The chain node processes the second service request related to the service corresponding to the service data initiated by the service requester based on the processing result.
A block chain-based business processing equipment, including a processor and a memory arranged to store computer executable instructions, the executable instructions, when executed, cause the processor to:

Through the cross-chain transmission channel of the second block chain corresponding to the first block chain and the business authorization agency, the deposit information generated by the second block chain node to the business requester is obtained from the second block chain Deploying a first smart contract based on the deposit information, the first smart contract being used to verify the signature data of the service requester according to the deposit information;

Receiving a first service request from the service requester, where the first service request includes service data and endorsement data;

Invoke the first smart contract to verify the signed data, and obtain a verification result;

If the verification result is passed, the business data and endorsement data are sent to the second blockchain node in the second blockchain through the cross-chain transmission channel, so that the second The blockchain node performs secondary verification on the signed data, and after the verification is passed, performs business processing based on the business data to obtain a processing result;

Through the cross-chain transmission channel, the processing result returned by the second blockchain node is received, the processing result is returned to the service requester, and the processing result is initiated to the service requester based on the processing result. The second service request related to the service corresponding to the service data is processed.
A block chain-based business processing equipment, including a processor and a memory arranged to store computer executable instructions, the executable instructions, when executed, cause the processor to:

Generate digital certificates and deposit information for the business requester;

Issue the digital certificate to the service requester, and send it to the first blockchain node of the first blockchain through the cross-chain transmission channel of the first blockchain and the second blockchain The deposit information, so that the first blockchain node deploys a first smart contract based on the deposit information, and the first smart contract is used to add to the service requester according to the deposit information To verify the signed data, and upon receiving the first service request of the service requester, call the first smart contract to verify the signed data, and obtain a verification result;

Through the cross-chain transmission channel, receive the service data and endorsement data sent by the first blockchain node of the first blockchain, where the service data and endorsement data are the first blockchain The node sends when the verification result is passed, and the endorsement data is data generated based on the digital certificate;

Perform secondary verification on the signed data. If the verification is passed, perform business processing based on the business data to obtain the processing result, and return the processing result to the first zone of the first blockchain A block chain node, so that the first block chain node processes, based on the processing result, a second service request related to the service corresponding to the service data initiated by the service requester.