CN113239055A

CN113239055A - Target object verification method and device based on block chain

Info

Publication number: CN113239055A
Application number: CN202110536645.7A
Authority: CN
Inventors: 廖晓娜
Original assignee: Zhejiang eCommerce Bank Co Ltd
Current assignee: Zhejiang eCommerce Bank Co Ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-08-10

Abstract

The present specification provides a method and an apparatus for verifying a target object based on a blockchain, wherein the method for verifying a target object based on a blockchain includes: acquiring historical item data corresponding to an initial object and state data corresponding to the historical item data, determining an updating object associated with the initial object, acquiring a data processing result of the updating object based on the historical item data, matching the state data with the data processing result, and determining a compatibility verification result of the initial object and the updating object based on the matching result; the compatibility of the initial object and the updated object is fully verified, the problem of incompatibility between the initial object and the updated object is reduced, and the stability of the target object is enhanced.

Description

Target object verification method and device based on block chain

Technical Field

The present disclosure relates to the field of blockchain technologies, and in particular, to a target object verification method based on a blockchain. The present specification also relates to a blockchain-based target object authentication apparatus, a computing device, and a computer-readable storage medium.

Background

With the development of internet technology, a variety of online services are derived based on a block chain technology, a user can complete specific requirements through the online services, and the online services can be continuously updated according to actual needs.

Disclosure of Invention

In view of this, the embodiments of the present specification provide a target object verification method based on a block chain. The present specification also relates to a target object verification apparatus based on a blockchain, a computing device, and a computer-readable storage medium, so as to solve the technical defects in the prior art.

According to a first aspect of embodiments of the present specification, there is provided a target object verification method based on a blockchain, including:

acquiring historical item data corresponding to an initial object and state data corresponding to the historical item data;

determining an updating object associated with the initial object, and acquiring a data processing result of the updating object based on the historical project data;

and matching the state data with the data processing result, and determining a compatibility verification result of the initial object and the updated object based on the matching result.

Optionally, the acquiring historical item data corresponding to the initial object and state data corresponding to the historical item data includes:

and acquiring historical item data generated after the application block chain executes the initial object and state data corresponding to the historical item data based on an item request which is sent by a user and carries item attribute information.

Optionally, the obtaining a data processing result of the update object based on the historical item data includes:

generating an item request corresponding to the updating object according to the historical item data;

and acquiring a data processing result generated by the updating object based on the project attribute information carried in the project request.

Optionally, before obtaining a data processing result of the update object based on the historical item data, the method includes:

determining a verification server corresponding to the updated object, and adding the updated object to the verification server;

and determining verification state data corresponding to the updated object according to the state data corresponding to the historical project data.

acquiring project attribute information according to the historical project data;

and adding the item attribute information to the update object, and acquiring a data processing result generated by the update object based on the item attribute information and the verification state data.

acquiring historical item data corresponding to an initial contract and state data corresponding to the historical item data;

accordingly, an update contract associated with the initial contract is determined, and a data processing result of the update contract based on the historical project data is obtained.

Optionally, the matching the state data with the data processing result, and determining a compatibility verification result of the initial object and the updated object based on the matching result includes:

and matching the state data with the data processing result, and determining a compatibility verification result of the initial contract and the updated contract based on the matching result.

According to a second aspect of embodiments of the present specification, there is provided a target object verification apparatus based on a blockchain, including:

the acquisition module is configured to acquire historical item data corresponding to an initial object and state data corresponding to the historical item data;

a determining module configured to determine an update object associated with the initial object and obtain a data processing result of the update object based on the historical item data;

a matching module configured to match the state data with the data processing result, and determine a compatibility verification result of the initial object and the updated object based on the matching result.

According to a third aspect of embodiments herein, there is provided a computing device comprising:

a memory and a processor;

the memory is to store computer-executable instructions, and the processor is to execute the computer-executable instructions to:

According to a fourth aspect of embodiments herein, there is provided a computer-readable storage medium storing computer-executable instructions that, when executed by a processor, implement the steps of any of the blockchain-based target object verification methods.

In the target object verification method based on the blockchain, by acquiring historical item data corresponding to an initial object and state data corresponding to the historical item data, an updated object associated with the initial object is determined, a data processing result of the updated object based on the historical item data is acquired, the state data is matched with the data processing result, and a compatibility verification result of the initial object and the updated object is determined based on the matching result. Specifically, the method realizes the sufficient verification of the compatibility of the initial object and the updated object by acquiring the data processing result of the updated object based on the historical project data and according to the matching result of the state data and the data processing result, reduces the problem of incompatibility between the initial object and the updated object, enhances the stability of the target object, and improves the operating efficiency of the target object.

Drawings

Fig. 1 is a flowchart of a target object verification method based on a blockchain according to an embodiment of the present disclosure;

FIG. 2 is a process flow diagram of a blockchain-based target object authentication method applied to an authenticated transfer contract scenario on an authenticated blockchain according to an embodiment of the present disclosure;

FIG. 3 is a process flow diagram of a blockchain-based target object authentication method applied to an authentication transfer contract scenario on an authentication server according to an embodiment of the present disclosure;

FIG. 4 is a process diagram of a block chain-based target object verification method applied to verify a new code scenario of an intelligent contract through a block chain client according to an embodiment of the present specification;

FIG. 5 is a flowchart of a process applied to a scenario of verifying a new code of a smart contract by a blockchain client for a target object verification method based on blockchain according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a target object verification apparatus based on a blockchain according to an embodiment of the present disclosure;

fig. 7 is a block diagram of a computing device according to an embodiment of the present disclosure.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present description. This description may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make and use the present disclosure without departing from the spirit and scope of the present disclosure.

The terminology used in the description of the one or more embodiments is for the purpose of describing the particular embodiments only and is not intended to be limiting of the description of the one or more embodiments. As used in one or more embodiments of the present specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used in one or more embodiments of the present specification refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It will be understood that, although the terms first, second, etc. may be used herein in one or more embodiments to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first can also be referred to as a second and, similarly, a second can also be referred to as a first without departing from the scope of one or more embodiments of the present description. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

First, the noun terms to which one or more embodiments of the present specification relate are explained.

Block chains: the method can be understood as a shared database, and the data or information stored in the shared database has the characteristics of unforgeability, whole-course marking, traceability, public transparency, collective maintenance and the like.

Block chain intelligent contracts: it can be understood that a protocol, usually C + + or the like, deployed on the blockchain can be automatically executed on the blockchain and promises the behavior of each participant.

And (3) playback: i.e. recording the real data on-line and then playing back these data in the environment under-line.

Mock: in the testing process, for some objects which are not easy to construct/obtain, a Mock object is created to simulate the behavior of the objects; the Mock object is a substitute for the real object during debugging.

In the present specification, a method for verifying a target object based on a blockchain is provided, and the present specification relates to a device for verifying a target object based on a blockchain, a computing device, and a computer-readable storage medium, which are described in detail in the following embodiments one by one.

Fig. 1 shows a flowchart of a target object verification method based on a blockchain according to an embodiment of the present disclosure, which specifically includes steps 102 to 106.

Step 102: and acquiring historical item data corresponding to the initial object and state data corresponding to the historical item data.

The target object may be understood as an object that can be deployed on the blockchain, for example, an intelligent contract that is deployed on the blockchain. In the case that the target object is an intelligent contract, the initial object may be understood as initial code data of the intelligent contract, and in practical applications, running the initial code data may be understood as running the intelligent contract. For example, the intelligent contract is a transfer intelligent contract deployed on a block chain, and accordingly, the initial object is initial code data of the transfer intelligent contract; running the initial code data of the transfer intelligence contract may be understood as running the transfer intelligence contract.

Historical item data may be understood as data generated by an initial object during execution, which in this implementation may be initial code data in a transfer intelligence contract. Where running the initial code data may be understood to be running the smart contract, the historical item data may be transfer transaction data generated by the transfer smart contract in performing a transfer transaction.

The state data may be understood as data indicating that the state of the user changes, and when the initial object pair completes an operation, the state of the user changes, and the state information has an association relationship with the history item information. For example, the status data may be an account amount of the user; when the transfer transaction of the transfer intelligent contract is completed, the account amount of the transfer initiator is reduced, and correspondingly, the account amount of the transfer receiver is increased; and when the transfer transaction is completed once, the account amount of the corresponding transfer initiator and the account transfer receiver changes once, and the changed account amount has an incidence relation with the transfer transaction data of the transfer intelligent contract.

Specifically, historical item data generated by the initial object in the process of executing a specific operation and state data which corresponds to the historical item data and indicates what kind of change occurs to the state of the user are obtained.

For example, taking an initial object as initial code data of a transfer intelligent contract as an example, verifying a blockchain to obtain transfer transaction data of the transfer intelligent contract on the blockchain in the transfer transaction execution process, where the transfer transaction data may include data such as a transfer request sent by a user, a transfer transaction executed by the transfer intelligent contract according to the transfer request, and the like; and also, world data corresponding to the transfer transaction data is required to be acquired, and the account amount of the user is changed correspondingly every time the transfer transaction is executed, wherein the world data may be the account amount of the user after the transfer transaction is completed.

In the embodiment of the present specification, by acquiring the historical item data and the state data of the initial object, it is realized to verify whether the updated object is compatible with the initial object through the historical item data and the state data subsequently, so that the probability of incompatibility between the initial object and the updated object is reduced, and the effect of enhancing the stability of the target object is achieved.

In an embodiment of the present application, the acquiring historical item data corresponding to an initial object and state data corresponding to the historical item data includes:

The application blockchain can be understood as a blockchain which runs in real life and can be accessed by a user; the project request can be understood as a request sent by a user to an application blockchain, wherein the request needs an initial object to complete a specific operation, and in the implementation, the project request can be understood as a transfer request, a commodity purchase request and the like of the user; the item attribute information may be understood as information necessary for constructing the item request and indicating the content of the item, for example, the item request is a transfer transaction request, and accordingly, the item attribute information may include information of an account of a transfer initiator, a contract identifier of a transfer smart contract, a transfer amount, an account of a transfer receiver, and the like.

Specifically, the application block link receives a project request sent by a user, and sends the project request to an initial object of the target object, and the initial object completes a specific operation according to the project request; historical item data are generated in the execution process of the initial object, and state data corresponding to the historical item data are generated after the initial object is executed; based on the above process, the historical item data and the state data generated after the application blockchain executes the initial object based on the item request sent by the user can be obtained.

For example, the following steps are carried out: taking an initial object as an example of initial code data in a transfer intelligent contract, sending a transfer transaction request to an application block chain by a user, wherein the transfer transaction request carries transfer attribute information such as an identification of the transfer intelligent contract, a transfer initiator account number, a transfer amount, a receiver account number and the like; the application block link receives a transfer transaction request sent by a user, determines a transfer intelligent contract according to the identification of the transfer intelligent contract and sends the transfer transaction request to the transfer intelligent contract, and the transfer intelligent contract executes transfer transaction according to the transfer transaction request; historical transfer data is generated in the process of executing the transfer transaction by the transfer intelligent contract; and after the transfer transaction of the transfer intelligent contract is finished every time, world data corresponding to the historical transfer data is correspondingly generated, wherein the world data represents the amount of money which changes after the transfer transaction of the transfer initiator and the transfer receiver is finished, so that the subsequent verification block chain can acquire the historical transfer data generated after the application block chain executes the code data in the transfer intelligent contract and the world data corresponding to the historical transfer data.

In the embodiment of the present specification, by acquiring the historical item data and the state data of the initial object, whether the updated object is compatible with the initial object is verified subsequently, so that the probability of incompatibility between the initial object and the updated object is reduced, and the stability of the target object is enhanced.

Step 104: and determining an updating object associated with the initial object, and acquiring a data processing result of the updating object based on the historical project data.

In the case that the target object is an intelligent contract, the update object can be understood as update code data of the intelligent contract, and in practical application, running the update code data can be understood as running the updated intelligent contract; for example, the intelligent contract is a transfer intelligent contract deployed on a block chain, and accordingly, the updating object is updating code data of the transfer intelligent contract; running the updated code data of the transfer intelligent contract may be understood as running the updated transfer intelligent contract.

The data processing result can be understood as world data which is generated by the updated intelligent contract after the transaction request is completed and is associated with the transaction request; for example, the world data may be understood as the account balance of the transfer initiator and the transfer recipient; under the condition that the intelligent contract is a transfer intelligent contract, after the transfer intelligent contract completes transfer transaction, the account amount of a transfer initiator is reduced, and the account amount of a transfer receiver is increased; and the account amount of both transaction parties can be changed once every time the transfer transaction is carried out on the transfer intelligent contract, and the changed transaction amount has an incidence relation with the transfer transaction data of the transfer intelligent contract.

Specifically, an update object associated with the initial object is determined, history item data is processed through the update object, and a data processing result of the update object is obtained.

In an embodiment of the application, the obtaining a data processing result of the update object based on the historical item data includes:

generating an item request corresponding to the updating object according to the historical item data; and acquiring a data processing result generated by the updating object based on the project attribute information carried in the project request.

The item request corresponding to the update object may be understood as an item request for verifying the update object, which is generated according to the item attribute information included in the history item data. For example, the update object may be understood as update code data of a transfer smart contract, and the item request corresponding to the update object may be understood as a transfer transaction request generated according to transfer transaction information generated by the update code data during execution of a transfer transaction, the transfer transaction request being used only for verifying the update code data.

Specifically, the item attribute information included in the historical item data is acquired, and an item request corresponding to the update object is generated according to the item attribute information; and sending the project request to the update object, wherein the update object completes specific operation according to the project request and generates a data processing result corresponding to the project request, so that the data processing result generated by the update object can be obtained.

For example, taking an update object as update code data of a transfer intelligent contract as an example, the update code data of the transfer intelligent contract is verified on a verification block chain, and running the update code data in practical application can be understood as running the transfer intelligent contract.

And obtaining historical transfer data generated in the transfer transaction executing process by the initial code data of the transfer intelligent contract, wherein the historical transfer data comprises transfer attribute information such as a transfer initiator account, a transfer amount, a transfer receiver account and the like, and regenerating a transfer transaction request for carrying out playback verification on the updated code data according to the transfer attribute information.

The transfer transaction request is sent to a verification block chain, the verification block chain sends the transfer transaction request to update code data of a transfer intelligent contract, the update code data of the transfer intelligent contract executes transfer transaction on the verification block chain according to the transfer request, when the update code data executes the transfer transaction once, world state data in the verification block chain are changed, the world state data can be understood as account amount changed in accounts of both transfer parties, after the transfer transaction request is completed by the update code data, the world state data after the transfer request is completed is output as a data processing result, and therefore historical item data generated by the update code data of the transfer intelligent contract based on initial code data is obtained, and the generated data processing result is obtained.

In the embodiment of the present specification, the update object on the verification blockchain is verified through the item request generated by the historical item data, so that the probability that the initial object is incompatible with the update object is reduced.

In an embodiment of the present application, before obtaining a data processing result of the update object based on the historical item data, the method includes:

determining a verification server corresponding to the updated object, and adding the updated object to the verification server; and determining verification state data corresponding to the updated object according to the state data corresponding to the historical project data.

The verification server is used for verifying the updated object; the verification state data can be understood as data stored in the verification server, for example, the verification state data can be understood as verification world state data stored in the verification server, and when the server verifies the update code data of the transfer intelligent contract, the update code data generates world state data corresponding to the transfer transaction data based on the verification world state data.

Specifically, a server used for verifying the updated object is determined, and the updated object is added to the verification server; and generating verification state data corresponding to the updating object according to the state data corresponding to the historical project data, and storing the verification state data in a verification database.

For example, taking an update object as update code data of a transfer intelligent contract as an example, before verifying the update code data by a verification server, a server for verifying the update code data needs to be determined, and the update code data is sent to the verification server; and then generating verification world state data according to the world data corresponding to the historical transfer data, and storing the verification world state data in a server.

In practical application, after the update object is added to a verification server and the verification state data is generated, a data processing result of the update object based on the historical item data can be obtained, which specifically includes:

Specifically, the item attribute information in the historical item data is acquired, and the item attribute information is added to the update object, and the update object processes the item attribute information and generates the data processing result.

For example, taking an update object as update code data of the transfer intelligent contract as an example, the update code data of the transfer intelligent contract is verified on the verification server, and running the update code data in practical application can be understood as running the transfer intelligent contract.

After the updated code data of the intelligent transfer contract is sent to the verification server, the verification server obtains transfer attribute information such as an account of a transfer initiator, a transfer amount and a transfer receiver, which is contained in historical transfer data generated by initial code data of the intelligent transfer contract on an application block chain, and inputs the transfer attribute information into the updated code data of the intelligent transfer contract, the updated code data of the intelligent transfer contract carries out transfer transaction according to the transfer attribute information, when the world state data needs to be changed after the transfer transaction is completed, the verified world state data stored in the verification server is obtained, and the change operation of the world state data is carried out on the basis of the verified world state data, wherein the world state data can be understood as the account amount changed in the accounts of both sides of the transfer; and after the update code data of the intelligent transfer contract completes the data processing, outputting the world state data after the transfer transaction is executed as a data processing result, thereby obtaining historical item data generated by the update code data of the intelligent transfer contract based on the initial code data and generating a data processing result.

In the embodiment of the present specification, the updated object on the verification server is verified through the item request generated by the historical item data, so that the probability that the initial object is incompatible with the updated object is reduced, and the stability of the target object is enhanced.

Step 106: and matching the state data with the data processing result, and determining a compatibility verification result of the initial object and the updated object based on the matching result.

Specifically, the state data generated by the initial object is matched with the data processing result generated by the updated object, if the matching result is consistent, it indicates that the updated object is compatible with the initial object, otherwise, it indicates that the updated object is incompatible with the initial object.

For example, the initial object is the initial code data of the transfer intelligent contract, and the updated object is the updated code data of the transfer intelligent contract.

Matching world state data generated by the initial code data of the intelligent transfer contract with world state data generated by the updated code data of the intelligent transfer contract, wherein if the matching result is consistent, the updated code data of the intelligent transfer contract is compatible with the initial code data of the intelligent transfer contract; after the updated code data of the intelligent transfer contract is uploaded to the application block chain, the intelligent transfer contract can be ensured not to be abnormal when historical transaction data is executed.

If the matching results of the intelligent contract and the intelligent contract are inconsistent, the updated code data of the intelligent contract is incompatible with the initial code data of the intelligent contract; when the updated code data of the intelligent contract is uploaded to the application block chain, the problem of incompatibility with the initial code data of the intelligent contract can occur.

In the embodiment of the present specification, by matching the state data generated by the initial object with the data processing result generated by the updated object, the compatibility between the initial object and the updated object is fully verified, the probability of incompatibility between the history item data and the updated object is reduced, the stability of the target object is enhanced, and the operating efficiency of the target object is improved.

In an embodiment of this specification, the acquiring historical item data corresponding to an initial object and state data corresponding to the historical item data includes:

acquiring historical item data corresponding to an initial contract and state data corresponding to the historical item data; accordingly, an update contract associated with the initial contract is determined, and a data processing result of the update contract based on the historical project data is obtained.

Wherein the target object can be understood as an intelligent contract deployed on the blockchain. In the case that the target object is an intelligent contract, the initial contract may be understood as initial code data of the intelligent contract, the update contract may be understood as update code data of the intelligent contract, and in actual application, running the initial code data or the update code data may be understood as running the intelligent contract.

Specifically, history item data generated in the process of executing a specific operation in the initial contract and state data corresponding to the history item data and indicating what kind of change occurs in the state of the user are acquired. Determining an update contract associated with the initial contract, processing the historical project data through the update contract, and acquiring a data processing result of the update contract.

For example, the initial contract is taken as the initial code data of the intelligent transfer contract, and the update object is taken as the update code data of the intelligent transfer contract. Obtaining transfer transaction data of the transfer intelligent contract on the block chain in the transfer transaction execution process, wherein the transfer transaction data can comprise data such as a transfer request sent by a user, a transfer transaction executed by the transfer intelligent contract according to the transfer request and the like; and also needs to acquire world data corresponding to the transfer transaction data.

And obtaining transfer attribute information including a transfer initiator account, a transfer amount, a transfer receiver account and the like in the historical transfer data, and regenerating a transfer transaction request for carrying out playback verification on the updated code data according to the transfer attribute information.

Correspondingly, in practical applications, the matching the state data with the data processing result and determining a compatibility verification result of the initial object and the updated object based on the matching result include:

Matching the world state data generated by the initial code data with the world state data generated by the updated code data, wherein if the matching result is consistent, the updated code data of the transfer intelligent contract is compatible with the initial code data of the transfer intelligent contract; after the updated code data of the intelligent transfer contract is uploaded to the application block chain, the intelligent transfer contract can be ensured not to be abnormal when historical transaction data is executed. And if the matching results of the two are inconsistent, the updated code data of the intelligent contract is incompatible with the initial code data of the intelligent contract.

In the embodiment of the present specification, by obtaining the data processing result of the update contract based on the historical item data, and according to the matching result of the state data and the data processing result, the compatibility of the initial contract and the update contract is fully verified, the probability of incompatibility between the initial contract and the update contract is reduced, the stability of the target object is enhanced, and the operating efficiency of the target object is improved.

The following describes, with reference to fig. 2, the block chain-based target object verification method further with reference to an example of an application of the block chain-based target object verification method provided in this specification to verify a transfer contract scene on a verification block chain. Fig. 2 shows a processing flow chart of a target object verification method based on a blockchain, which is applied to a scenario of verifying a transfer contract on a verification blockchain according to an embodiment of the present specification, and specifically includes the following steps:

step 202: and the user sends a transfer request to the application block chain, wherein the transfer request carries transfer attribute information such as a transfer initiator account, a transfer amount, a receiver account, a transfer intelligent contract identifier and the like.

Step 204: after receiving a transfer request sent by a user, the application block link inquires initial code data of the transfer intelligent contract according to the transfer intelligent contract identifier and sends the transfer request to the initial code data of the transfer intelligent contract.

Step 206: transferring the specific amount in the account number of the transfer initiator to the account of the receiver based on the transfer request by the initial code data of the transfer intelligent contract, and executing the transfer process according to the initial code data of the transfer intelligent contract to generate transfer data; and after the transfer is finished, the world state data of the application block chain is changed, and each transfer transaction corresponds to one world state data.

Step 208: when the updated code data of the intelligent transfer contract needs to be verified through the verification blockchain, the transfer data of the intelligent transfer contract and the world state data corresponding to the transfer data are exported through a blockchain data service and stored in a database.

Step 210: and obtaining transfer attribute information such as a transfer initiator account, a transfer amount, a transfer receiver account and the like in the transfer data, regenerating a transfer request for verifying the updated code data according to the transfer attribute information, and sending the transfer request to a verification block chain.

Step 212: the verification block chain sends the transfer request to the update code data of the transfer intelligent contract, the update code data of the transfer intelligent contract executes transfer transaction according to the transfer request, and the world state data in the verification block chain is changed once the transfer transaction is executed; and after all transaction requests are executed, the verification block link ends the verification of the updating code data of the account transfer intelligent contract and outputs the world state data after the verification is finished.

Step 214: matching the world state data output by the verification block chain with the world state data output by the application block chain; if the matching results of the two are consistent, the updated code data of the transfer intelligent contract is compatible with the initial code data of the transfer intelligent contract; after the updated code data of the intelligent transfer contract is online, the intelligent transfer contract can be ensured not to be abnormal in the execution process.

Step 216, if the matching results of the two are inconsistent, the updated code data of the transfer intelligent contract is incompatible with the initial code data of the transfer intelligent contract; when the updated code data of the intelligent transfer contract is operated on line, the problem of incompatibility with the initial code data can occur.

In the implementation of the description, the method realizes the sufficient verification of the compatibility of the initial code data and the updated code data by acquiring the data processing result of the updated code data based on the historical transaction data and according to the matching result of the world state data of the initial code data and the world state data of the updated code data, reduces the probability of incompatibility between the initial code data and the updated code data, enhances the stability of the intelligent contract and improves the operation efficiency of the intelligent contract.

The following describes, with reference to fig. 3, a block chain-based target object authentication method provided in this specification further by taking an example of an application of the block chain-based target object authentication method in verifying a transfer contract scene on a verification server. Fig. 3 shows a processing flow chart of a block chain-based target object verification method applied to a scenario of verifying a transfer contract on a verification server according to an embodiment of the present specification, and specifically includes the following steps:

step 302: and the user sends a transfer request to the application block chain, wherein the transfer request carries transfer attribute information such as a transfer initiator account, a transfer amount, a receiver account, a transfer intelligent contract identifier and the like.

Step 304: after receiving a transfer request sent by a user, the application block link inquires initial code data of the transfer intelligent contract according to the transfer intelligent contract identifier and sends the transfer request to the initial code data of the transfer intelligent contract.

Step 306: transferring the specific amount in the account number of the transfer initiator to the account of the receiver based on the transfer request by the initial code data of the transfer intelligent contract, and executing the transfer process according to the initial code data of the transfer intelligent contract to generate transfer data; and after the transfer is finished, the world state data of the application block chain is changed, and each transfer transaction corresponds to one world state data.

Step 308: when the updating code data of the transfer intelligent contract needs to be verified through the verification server, the transfer data of the transfer intelligent contract and the world state data corresponding to the transfer data are exported through the block chain data service and stored in the database.

Step 310: obtaining transfer attribute information such as a transfer initiator account, a transfer amount, a transfer receiver account and the like in transfer data, and sending the transfer attribute information to a verification server according to the transfer attribute information; and generating verification world state data according to the world state data corresponding to the transfer data, and sending the verification world state data to a verification server.

Step 312: the verification server sends the transfer attribute information to update code data of the transfer intelligent contract, the update code data of the transfer intelligent contract executes transfer transaction according to the transfer attribute information, and the verification world state data is changed after the update code data completes the transfer transaction every time, so that the world state data corresponding to the transfer transaction is generated; and after all the transfer transactions are executed, the verification server finishes the verification of the updating code data of the intelligent transfer contract and outputs the world state data after the verification is finished.

Step 314: matching the world state data output by the verification server with the world state data output by the application block chain; if the matching results of the two are consistent, the updated code data of the transfer intelligent contract is compatible with the initial code data of the transfer intelligent contract; after the updated code data of the intelligent transfer contract is online, the intelligent transfer contract can be ensured not to be abnormal in the execution process.

Step 316, if the matching results of the two are inconsistent, the updated code data of the transfer intelligent contract is incompatible with the initial code data of the transfer intelligent contract; when the updated code data of the intelligent transfer contract is operated on line, the problem of incompatibility with the initial code data can occur.

The following describes, with reference to fig. 4, a block chain-based target object verification method provided in this specification further by taking an example of an application of the block chain-based target object verification method in verifying a new code scene of an intelligent contract through a block chain client. Fig. 4 is a process diagram illustrating a target object verification method based on a blockchain, which is applied to verify a new code scene of an intelligent contract through a blockchain client according to an embodiment of the present specification, and specifically includes the following steps:

step 402: the user sends a blockchain transaction request to the blockchain, and the blockchain sends the blockchain transaction request to the intelligent contract old code for execution.

Step 404: the blockchain data service records transaction data of the online intelligent contract old code of the blockchain, and exports the transaction data on the blockchain and world data corresponding to the transaction data.

Step 406: the blockchain data service stores the derived transaction data and world data corresponding to the transaction data in a database according to a one-to-one correspondence relationship.

Step 408: and the block chain client acquires the transaction data stored in the database and the world data corresponding to the transaction data.

Step 410: the blockchain client may choose to call the offline blockchain directly for transaction request playback.

Step 412: the blockchain client may choose to invoke offline servers and operations between the Mock smart contract and the blockchain to perform transactional playback on the offline servers.

Referring to fig. 5, fig. 5 is a processing flowchart of a target object verification method based on a blockchain, which is applied to a scenario where a new code of an intelligent contract is verified by a blockchain client according to an embodiment of the present specification, where the specific steps of verifying the new code of the intelligent contract by the blockchain client are as follows:

step 502: and inquiring initial state transaction and world data, and initializing a block chain or a server.

Wherein, the initial state transaction can be understood as the historical item data in the above embodiment; the blockchain may be understood as the verification blockchain in the above embodiments; the server may be understood as the authentication server in the above embodiments.

Specifically, the blockchain client initializes the offline blockchain used for verifying the intelligent contract new code and the offline server used for verifying the intelligent contract new code.

The initialization of the state of the line-down block chain means that all blocks are initialized from a block having a block height of 0.

And initializing the state of the offline server by generating Mock initial world data through the world data corresponding to the transaction data and adding the Mock initial world data into the offline server.

Step 504: and inquiring the playback transaction and the corresponding world data to construct a blockchain request.

The blockchain request may be understood as an item request in the above embodiments.

Specifically, the offline played back blockchain transaction requests are constructed through blockchain client transaction data, and the quantity of the blockchain transaction requests needing to be constructed is determined according to the world data corresponding to the transaction data.

Step 506: and playing back the block chain.

Specifically, the blockchain client may choose to invoke the offline blockchain for transaction request playback, or invoke the offline server and the operation between the Mock smart contract and the blockchain for transaction playback on the offline server.

Step 508 is performed in case of transaction request playback through blockchain; steps 510-512 are performed with the transaction request played back by the offline server.

Step 508: a transaction request is sent to the blockchain.

Specifically, when the blockchain client selects to directly call the offline blockchain for transaction request playback, the blockchain transaction request for verifying the intelligent contract new code is sent to the offline blockchain, and the offline blockchain sends the blockchain transaction request to the intelligent contract new code for execution.

And after the transaction request is executed, outputting world data generated after the transaction in the lower block chain is executed.

Step 510: and constructing a reference and calling an intelligent contract interface on the server.

Specifically, when the blockchain client selects to directly call the offline server and perform transaction playback through the operation between the Mock intelligent contract and the blockchain, the derived transaction data is directly used to construct the input parameters of the interface of the intelligent contract new code deployed on the offline server, and the interface of the intelligent contract new code is called.

Step 512: mock queries operations such as transactions and world data on a blockchain.

Specifically, in the running process of an interface of the intelligent contract new code, when block chain operations such as world state data query operation and the like occur, directly returning the Mock initial world data to the intelligent contract new code; and the intelligent contract new code carries out the operation of changing the world data on the basis of the Mock initial world data, and outputs the world data generated after the execution of the call in the off-line server after the execution of the call is finished.

Step 514: and acquiring execution result world data, and comparing the execution result world data with an online corresponding execution result.

Specifically, the world data generated by the new code of the intelligent contract during offline playback is compared with the corresponding world data result after the online intelligent contract is executed by the block chain client.

Step 516: and judging whether the intelligent contract code passes or not.

Specifically, whether the intelligent contract new code passes the verification or not is judged according to the comparison result. If the comparison result of the intelligent contract new code and the intelligent contract old code is consistent, the intelligent contract new code passes compatibility verification, and the intelligent contract new code is compatible with the intelligent contract old code on the block chain, so that after the intelligent contract new code is on line, no exception occurs when historical transaction data generated by the intelligent contract old code is executed.

If the comparison result of the intelligent contract new code and the block chain is inconsistent, the intelligent contract new code is verified to be through compatibility, the intelligent contract new code is incompatible with the intelligent contract old code on the block chain, and after the intelligent contract new code is on line, an exception occurs when historical transaction data generated by the intelligent contract old code is executed.

In the embodiment of the specification, online transaction data of a block chain is recorded, corresponding world data after transaction execution is recorded, then the transaction data is played back on an online intelligent contract new code, whether the intelligent contract new code is compatible with an intelligent contract old code is judged by comparing whether a world data playback result is consistent with an online execution result, and compatibility verification of the intelligent contract new code and the intelligent contract old code is realized, so that the intelligent contract new code is ensured not to be abnormal after being online.

Corresponding to the above method embodiment, the present specification further provides an embodiment of a target object verification apparatus based on a block chain, and fig. 6 illustrates a schematic structural diagram of a target object verification apparatus based on a block chain according to an embodiment of the present specification. As shown in fig. 6, the apparatus includes:

an obtaining module 602 configured to obtain historical item data corresponding to an initial object and state data corresponding to the historical item data;

a determining module 604 configured to determine an update object associated with the initial object and obtain a data processing result of the update object based on the historical item data;

a matching module 606 configured to match the state data with the data processing result, and determine a compatibility verification result of the initial object and the updated object based on the matching result.

Optionally, the obtaining module 602 is further configured to:

The determination module 604 is further configured to:

Optionally, the target object verification apparatus based on a blockchain further includes an adding module, where the adding module is configured to:

Optionally, the determining module 604 is configured to:

Optionally, the obtaining module 602 is configured to:

accordingly, the determining module 604 is configured to determine an update contract associated with the initial contract and obtain a data processing result of the update contract based on the historical project data.

Optionally, the matching module 606 is configured to:

In the target object verification apparatus based on the blockchain provided by the present specification, an update object associated with an initial object is determined by acquiring history item data corresponding to the initial object and status data corresponding to the history item data, a data processing result of the update object based on the history item data is acquired, the status data is matched with the data processing result, and a compatibility verification result of the initial object and the update object is determined based on the matching result. Specifically, the method realizes the sufficient verification of the compatibility of the initial object and the updated object by acquiring the data processing result of the updated object based on the historical project data and according to the matching result of the state data and the data processing result, reduces the problem of incompatibility between the initial object and the updated object, enhances the stability of the target object, and improves the operating efficiency of the target object.

The above is an illustrative scheme of the target object verification apparatus based on the blockchain according to the embodiment. It should be noted that the technical solution of the target object verification apparatus based on the blockchain belongs to the same concept as the technical solution of the target object verification method based on the blockchain, and details of the technical solution of the target object verification apparatus based on the blockchain, which are not described in detail, can be referred to the description of the technical solution of the target object verification method based on the blockchain.

FIG. 7 illustrates a block diagram of a computing device 700 provided in accordance with one embodiment of the present description. The components of the computing device 700 include, but are not limited to, memory 710 and a processor 720. Processor 720 is coupled to memory 710 via bus 730, and database 750 is used to store data.

Computing device 700 also includes access device 740, access device 740 enabling computing device 700 to communicate via one or more networks 760. Examples of such networks include the Public Switched Telephone Network (PSTN), a Local Area Network (LAN), a Wide Area Network (WAN), a Personal Area Network (PAN), or a combination of communication networks such as the internet. Access device 740 may include one or more of any type of network interface, e.g., a Network Interface Card (NIC), wired or wireless, such as an IEEE802.11 Wireless Local Area Network (WLAN) wireless interface, a worldwide interoperability for microwave access (Wi-MAX) interface, an ethernet interface, a Universal Serial Bus (USB) interface, a cellular network interface, a bluetooth interface, a Near Field Communication (NFC) interface, and so forth.

In one embodiment of the present description, the above-described components of computing device 700, as well as other components not shown in FIG. 7, may also be connected to each other, such as by a bus. It should be understood that the block diagram of the computing device architecture shown in FIG. 7 is for purposes of example only and is not limiting as to the scope of the present description. Those skilled in the art may add or replace other components as desired.

Computing device 700 may be any type of stationary or mobile computing device, including a mobile computer or mobile computing device (e.g., tablet, personal digital assistant, laptop, notebook, netbook, etc.), mobile phone (e.g., smartphone), wearable computing device (e.g., smartwatch, smartglasses, etc.), or other type of mobile device, or a stationary computing device such as a desktop computer or PC. Computing device 700 may also be a mobile or stationary server.

Wherein processor 720 is configured to execute the following computer-executable instructions:

The above is an illustrative scheme of a computing device of the present embodiment. It should be noted that the technical solution of the computing device and the technical solution of the target object verification method based on the blockchain belong to the same concept, and details of the technical solution of the computing device, which are not described in detail, can be referred to the description of the technical solution of the target object verification method based on the blockchain.

An embodiment of the present specification also provides a computer readable storage medium storing computer instructions that, when executed by a processor, are operable to:

The above is an illustrative scheme of a computer-readable storage medium of the present embodiment. It should be noted that the technical solution of the storage medium belongs to the same concept as the technical solution of the target object verification method based on the blockchain, and details of the technical solution of the storage medium, which are not described in detail, can be referred to the description of the technical solution of the target object verification method based on the blockchain.

The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

The computer instructions comprise computer program code which may be in the form of source code, object code, an executable file or some intermediate form, or the like. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer memory, Read-only memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, etc. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.

It should be noted that, for the sake of simplicity, the foregoing method embodiments are described as a series of acts or combinations, but those skilled in the art should understand that the present disclosure is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present disclosure. Further, those skilled in the art should also appreciate that the embodiments described in this specification are preferred embodiments and that acts and modules referred to are not necessarily required for this description.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The preferred embodiments of the present specification disclosed above are intended only to aid in the description of the specification. Alternative embodiments are not exhaustive and do not limit the invention to the precise embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the specification and its practical application, to thereby enable others skilled in the art to best understand the specification and its practical application. The specification is limited only by the claims and their full scope and equivalents.

Claims

1. A target object verification method based on a block chain comprises the following steps:

2. The method for verifying a target object based on a blockchain according to claim 1, wherein the obtaining of historical item data corresponding to an initial object and state data corresponding to the historical item data comprises:

3. The blockchain-based target object verification method according to claim 1, wherein the obtaining of the data processing result of the updated object based on the historical item data includes:

4. The blockchain-based target object verification method according to claim 1, wherein before obtaining the data processing result of the updated object based on the historical item data, the method includes:

5. The blockchain-based target object verification method according to claim 4, wherein the obtaining of the data processing result of the updated object based on the historical item data includes:

6. The method for verifying a target object based on a blockchain according to claim 1, wherein the obtaining of historical item data corresponding to an initial object and state data corresponding to the historical item data comprises:

7. The blockchain-based target object verification method of claim 6, wherein the matching the state data with the data processing result and determining a compatibility verification result of the initial object and the updated object based on the matching result comprise:

8. A blockchain-based target object authentication apparatus, comprising:

9. A computing device, comprising:

a memory and a processor;

the memory is configured to store computer-executable instructions, and the processor is configured to execute the computer-executable instructions to implement the method of:

10. A computer-readable storage medium storing computer-executable instructions which, when executed by a processor, implement the steps of the blockchain based target object authentication method of any one of claims 1 to 7.