CN112508560A - Block chain cross-chain identity authentication and authority control method and device and computer equipment - Google Patents
Block chain cross-chain identity authentication and authority control method and device and computer equipment Download PDFInfo
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Abstract
The invention discloses a block chain cross-chain identity authentication and authority control method, a device and computer equipment, wherein the method comprises the following steps: a source chain initiates cross-chain registration to a target chain; the target chain checks the registration information, issues a cross-chain certificate of the source chain, generates a cross-chain intelligent contract, generates an access control rule and a transaction verification rule of the source chain according to the registration information, and returns a registration result; a source chain initiates a cross-chain transaction to a target chain; the target chain receives the cross-chain transaction request, decrypts the cross-chain transaction request by using a private key, checks the cross-chain transaction, executes an access control rule of a cross-chain contract after the check is passed, executes a transaction verification rule after the check is passed, converts the transaction into a target chain transaction structure after the cross-chain transaction is verified, executes the transaction, and returns a result to the source chain; the source chain verifies after receiving the cross-chain transaction result, and the cross-chain transaction is completed after the verification is passed; the invention improves the authenticity of the identities of the two cross-chain parties in the cross-chain transaction and solves the problem of authority control in the cross-chain operation.
Description
Technical Field
The invention relates to a blockchain technology, in particular to a blockchain cross-chain identity authentication and authority control method, a blockchain cross-chain identity authentication and authority control device and computer equipment.
Background
The block chain is a distributed data account book technology which connects data blocks in sequence according to a time sequence, combines the data blocks into a chain data structure, is stored in all participants in a decentralized mode, and guarantees that data cannot be falsified, forged and traced through a cryptography technology. By applying the block chain technology, the integrity and the reliability of the information can be ensured, and the trust and the safety problems existing in the information interaction process can be effectively solved. With the development of the blockchain technology, many different kinds of chains appear, but due to the insufficient interoperability between different chains, data circulation and value exchange cannot be effectively carried out, and a blockchain island is formed. How to realize the interconnection and intercommunication of data between chains has become a problem that needs to be solved urgently in the development of block chain technology.
The chain crossing technology is a key technology for making through the information interaction barrier between the chains and realizing data circulation and value exchange, and is a bridge for outward expansion and connection of the block chain. The identity authentication is a problem to be solved firstly by a chain crossing technology, and is a precondition for ensuring the safety of chain crossing data, and because each chain has a set of independent identity management system, and a uniform identity management mechanism is lacked among the chains, the key problem of how to design the identity authentication and the authority control in the chain crossing process is the chain crossing technology.
Disclosure of Invention
The invention aims to provide a method, a device and computer equipment for cross-chain identity authentication and authority control of a block chain, aiming at the defects of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
according to a first aspect of the present invention, there is provided a blockchain cross-chain identity authentication and authority control method, including the following steps:
a source chain initiates cross-chain registration to a target chain;
the target chain checks the registration information, issues a cross-chain certificate of the source chain, generates a cross-chain intelligent contract, generates an access control rule and a transaction verification rule of the source chain according to the registration information, and then returns a registration result;
a source chain initiates a cross-chain transaction to a target chain;
the target chain receives the cross-chain transaction request, firstly decrypts the cross-chain transaction request by using a private key, then checks the cross-chain transaction, executes an access control rule of a cross-chain contract after the check is passed, and executes a transaction verification rule after the check is passed;
after the cross-chain transaction verification is passed by the target chain, the transaction is converted into a target chain transaction structure, the transaction is executed, and then the result is returned to the source chain;
and the source chain verifies after receiving the cross-chain transaction result, and the cross-chain transaction is completed after the verification is passed.
Further, the source chain and the target chain both comprise a cross-chain engine module and a transaction execution module, the cross-chain engine module is specially used for cross-chain interaction, cross-chain registration and cross-chain transaction verification are executed, and the transaction execution module is responsible for executing transactions.
Further, a source chain initiates cross-chain registration to a target chain, the registration information includes basic information of the source chain, cross-chain access rule information and transaction verification rule information, the basic information of the source chain includes a chain type, a consensus algorithm type, identity information (public key) and the like, the cross-chain access rule information is a type that the source chain needs to perform cross-chain operation on the target chain, for example, reading and writing target chain data, and the transaction verification rule information is a verification rule of transaction existence and validity.
Further, the target chain checks the source chain registration information, wherein the check includes whether the information is complete, whether access rule information and transaction verification rule information are included, the information is stored after the check is passed, a cross-chain certificate is issued to the source chain for cross-chain transaction, then a cross-chain intelligent contract is generated according to the registration information, an access control rule and a transaction verification rule of the source chain are generated in the contract, the access control rule is used for cross-chain access authority control of the source chain, the transaction verification rule is used for performing cross-chain transaction authenticity verification, then a registration result is returned to the source chain, and the registration result includes registration success information, the cross-chain certificate and public key information of the target chain.
Further, a cross-chain transaction request initiated by a source chain is encrypted by using a target chain public key after being signed by using a cross-chain certificate (private key) so as to ensure the security of the cross-chain transaction.
Further, the target chain checks the decrypted cross-chain transaction, including whether the source chain has completed cross-chain registration, whether the source chain has registered the access control rule and the transaction verification rule, and checks the transaction by using the source chain cross-chain certificate (public key), and executes the access control rule of cross-chain contract after the check is passed, and if the source chain has the relevant cross-chain operation authority, executes the transaction verification rule of cross-chain contract to verify the existence and validity of the cross-chain transaction.
Further, after the cross-chain transaction is verified by the target chain, the cross-chain transaction is converted into a transaction structure which can be identified by the target chain, the transaction is executed, a transaction result is signed by the target chain and then returned to the source chain, and the transaction result contains the Mercker proof of the transaction.
Further, the source chain uses the target chain public key to check the signature after receiving the cross-chain transaction result, the authenticity of the transaction is verified through the Mercker certification of the transaction, and the result can be selected to be linked or directly returned to the client after the verification is passed.
According to a second aspect of the present invention, there is provided a blockchain cross-chain identity authentication and rights management apparatus, the apparatus comprising:
the system comprises a cross-chain engine module and a transaction execution module which are deployed in a source chain and a cross-chain engine module and a transaction execution module which are deployed in a target chain;
the cross-chain engine module of the source chain is used for initiating cross-chain registration to the target chain, receiving a registration result returned by the target chain, initiating cross-chain transaction to the target chain and receiving a transaction result returned by the target chain;
the cross-chain engine module of the target chain comprises a registration module and a verification module;
the registration module receives a cross-chain registration request, checks registration information sent by a source chain, issues a cross-chain certificate of the source chain, generates a cross-chain intelligent contract, generates an access control rule and a transaction verification rule of the source chain according to the registration information, and returns a registration result to the source chain;
the verification module receives the cross-chain transaction request, decrypts the cross-chain transaction request by using a private key, checks the cross-chain transaction, executes an access control rule of a cross-chain contract after the check is passed, and executes a transaction verification rule after the check is passed; and after the cross-chain transaction is verified, the transaction is converted into a target chain transaction structure, the target chain transaction structure is sent to a transaction execution module of the target chain transaction structure to execute the transaction, and a transaction result is returned to the source chain.
According to a third aspect of the present invention, there is provided a computer device comprising: a memory and a processor; the memory having stored thereon a computer program executable by the processor; and when the processor runs the computer program, executing the steps of the block chain cross-chain identity authentication and authority control method.
The invention has the beneficial effects that: the invention improves the authenticity of the identities of the two cross-chain parties in the cross-chain transaction and solves the problem of authority control in the cross-chain operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a block chain inter-chain identity authentication and right management and control method according to an embodiment of the present invention;
FIG. 2 is a flowchart of a cross-chain registration process performed by the cross-chain engine registration module according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating cross-chain transaction verification performed by the cross-chain engine verification module according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Fig. 1 is a flowchart of a blockchain cross-chain identity authentication and right management method according to an embodiment of the present invention, where the method includes the following steps:
a source chain initiates cross-chain registration to a target chain;
the target chain checks the registration information, issues a cross-chain certificate of the source chain, generates a cross-chain intelligent contract, generates an access control rule and a transaction verification rule of the source chain according to the registration information, and then returns a registration result;
a source chain initiates a cross-chain transaction to a target chain;
the target chain receives the cross-chain transaction request, firstly decrypts the cross-chain transaction request by using a private key, then checks the cross-chain transaction, executes an access control rule of a cross-chain contract after the check is passed, and executes a transaction verification rule after the check is passed;
after the cross-chain transaction verification is passed by the target chain, the transaction is converted into a target chain transaction structure, the transaction is executed, and then the result is returned to the source chain;
and the source chain verifies after receiving the cross-chain transaction result, and the cross-chain transaction is completed after the verification is passed.
In this embodiment, the source chain and the target chain both include a cross-chain engine module and a transaction execution module, the cross-chain engine module is specially used for cross-chain interaction, cross-chain registration and cross-chain transaction verification are executed, and the transaction execution module is responsible for executing a transaction.
Fig. 2 is a cross-chain registration process executed by the cross-chain engine registration module in an embodiment of the present invention, including:
the method comprises the steps that a target chain receives a cross-chain registration request sent by a source chain, wherein the registration information comprises basic information of the source chain, cross-chain access rule information and transaction verification rule information, the basic information of the source chain comprises a chain type, a consensus algorithm type, identity information (public key) and the like, the cross-chain access rule information is the type of the source chain needing cross-chain operation on the target chain, for example, reading and writing of target chain data, and the transaction verification rule information is a verification rule of transaction existence and validity;
the target chain checks the source chain registration information, and the checking content comprises whether the information is complete or not, whether the information contains access rule information and transaction verification rule information or not and the like;
if the check is not passed, returning a registration failure result to the source chain, if the check is passed, storing registration information, issuing a cross-chain certificate to the source chain for cross-chain transaction, then generating a cross-chain intelligent contract according to the registration information, and generating an access control rule and a transaction verification rule of the source chain in the contract, wherein the access control rule is used for cross-chain access authority control of the source chain, the transaction verification rule is used for executing cross-chain transaction authenticity verification, and then returning a registration result to the source chain, and the registration result comprises registration success information, the cross-chain certificate and public key information of the target chain.
Fig. 3 is a cross-chain transaction verification process executed by the cross-chain engine verification module in an embodiment of the present invention, including:
the target chain receives a cross-chain transaction request initiated by the source chain, and the request is signed by the source chain by using a cross-chain certificate (private key) and then encrypted by using a target chain public key to ensure the safety of the cross-chain transaction;
the target chain decrypts the cross-chain transaction and then checks the cross-chain transaction, and the checking content comprises whether the source chain finishes cross-chain registration or not, whether the source chain registers a transaction verification rule or not and whether a source chain uses a source chain public key to verify the transaction;
checking an access control rule of executing a cross-chain contract after passing, checking whether a source chain has an execution authority of the cross-chain transaction, if the source chain registers a read authority of target chain data in a cross-chain registration stage, supporting the cross-chain inquiry transaction of the source chain, and if the source chain registers a read authority and a write authority of the target chain data in the cross-chain registration stage, supporting the cross-chain read-write operation of the source chain on the target chain data;
after the access control passes, executing a cross-link contract transaction verification rule, and verifying the existence and the validity of the cross-link transaction;
and after the transaction verification is passed, converting the cross-chain transaction into a transaction structure which can be identified by the target chain, sending the transaction structure to the transaction execution module for execution, wherein the transaction result is signed by the target chain and then returned to the source chain, and the transaction result contains the Mercker certification of the transaction. And the source chain uses the target chain public key to check the label after receiving the cross-chain transaction result, verifies the authenticity of the transaction through the Mercker certification of the transaction, and can select to link the result or directly return the result to the client after the verification is passed.
In one embodiment, a blockchain cross-chain identity authentication and rights management apparatus is provided, including:
the system comprises a cross-chain engine module and a transaction execution module which are deployed in a source chain and a cross-chain engine module and a transaction execution module which are deployed in a target chain;
the cross-chain engine module of the source chain is used for initiating cross-chain registration to the target chain, receiving a registration result returned by the target chain, initiating cross-chain transaction to the target chain and receiving a transaction result returned by the target chain;
the cross-chain engine module of the target chain comprises a registration module and a verification module;
the registration module receives a cross-chain registration request, checks registration information sent by a source chain, issues a cross-chain certificate of the source chain, generates a cross-chain intelligent contract, generates an access control rule and a transaction verification rule of the source chain according to the registration information, and returns a registration result to the source chain;
the verification module receives the cross-chain transaction request, decrypts the cross-chain transaction request by using a private key, checks the cross-chain transaction, executes an access control rule of a cross-chain contract after the check is passed, and executes a transaction verification rule after the check is passed; and after the cross-chain transaction is verified, the transaction is converted into a target chain transaction structure, the target chain transaction structure is sent to a transaction execution module of the target chain transaction structure to execute the transaction, and a transaction result is returned to the source chain.
In one embodiment, a computer device is provided, which includes a memory and a processor, where the memory stores computer readable instructions, and the computer readable instructions, when executed by the processor, cause the processor to execute the steps in the blockchain cross-chain identity authentication and right management method in the foregoing embodiments.
In one embodiment, a storage medium storing computer readable instructions is provided, and the computer readable instructions, when executed by one or more processors, cause the one or more processors to perform the steps in the blockchain cross-chain identity authentication and right management method in the embodiments described above. The storage medium may be a nonvolatile storage medium.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the one or more embodiments of the present disclosure, and is not intended to limit the scope of the one or more embodiments of the present disclosure, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the one or more embodiments of the present disclosure should be included in the scope of the one or more embodiments of the present disclosure.
Claims (10)
1. A method for cross-chain identity authentication and authority control of a block chain is characterized by comprising the following steps:
a source chain initiates cross-chain registration to a target chain;
the target chain checks the registration information, issues a cross-chain certificate of the source chain, generates a cross-chain intelligent contract, generates an access control rule and a transaction verification rule of the source chain according to the registration information, and then returns a registration result;
a source chain initiates a cross-chain transaction to a target chain;
the target chain receives the cross-chain transaction request, firstly decrypts the cross-chain transaction request by using a private key, then checks the cross-chain transaction, executes an access control rule of a cross-chain contract after the check is passed, and executes a transaction verification rule after the check is passed;
after the cross-chain transaction verification is passed by the target chain, the transaction is converted into a target chain transaction structure, the transaction is executed, and then the result is returned to the source chain;
and the source chain verifies after receiving the cross-chain transaction result, and the cross-chain transaction is completed after the verification is passed.
2. The method as claimed in claim 1, wherein the source chain and the target chain each include a cross-chain engine module and a transaction execution module, the cross-chain engine module is used for cross-chain interaction, cross-chain registration and cross-chain transaction verification, and the transaction execution module is responsible for executing transaction.
3. The method according to claim 1, wherein a source chain initiates a cross-chain registration to a target chain, the registration information includes basic information of the source chain, cross-chain access rule information, and transaction verification rule information, the basic information of the source chain includes a chain type, a consensus algorithm type, identity information, and the like, the cross-chain access rule information is a type of the source chain requiring a cross-chain operation on the target chain, and the transaction verification rule information is a verification rule of transaction existence and validity.
4. The blockchain cross-chain identity authentication and authority control method according to claim 1, wherein the target chain checks the source chain registration information, and the check includes whether the information is complete, whether the information includes access rule information and transaction verification rule information, and the like, the check is saved after passing, and a cross-chain certificate is issued to the source chain for cross-chain transaction, then a cross-chain intelligent contract is generated according to the registration information, and an access control rule and a transaction verification rule of the source chain are generated in the contract, the access control rule is used for cross-chain access authority control of the source chain, the transaction verification rule is used for performing cross-chain transaction authenticity verification, and then a registration result is returned to the source chain, and the registration result includes registration success information, the cross-chain certificate and public key information of the target chain.
5. The method as claimed in claim 1, wherein the cross-chain transaction request initiated by the source chain is encrypted using a target chain public key after being signed using a cross-chain certificate, so as to ensure security of the cross-chain transaction.
6. The blockchain cross-chain identity authentication and authority management and control method according to claim 1, wherein the target chain checks decrypted cross-chain transactions including whether a source chain has completed cross-chain registration, whether the source chain has registered access control rules and transaction validation rules, checks the transactions using a source chain cross-chain certificate, checks access control rules for performing cross-chain contract after passing, and if the source chain has an associated cross-chain operation authority, performs the transaction validation rules for performing cross-chain contract to validate the existence and validity of the cross-chain transactions.
7. The method as claimed in claim 1, wherein after the target chain verifies the cross-chain transaction, the cross-chain transaction is converted into a transaction structure that can be identified by the target chain, and the transaction is executed, and the transaction result is signed by the target chain and returned to the source chain, and the transaction result includes a mercker certificate of the transaction.
8. The method as claimed in claim 1, wherein the source chain checks the transaction result after receiving the result, verifies the authenticity of the transaction through the mercker proof of the transaction, and optionally links or directly returns the result to the client after the verification is passed.
9. The utility model provides a block chain is striden chain identity authentication and authority management and control device which characterized in that includes:
the system comprises a cross-chain engine module and a transaction execution module which are deployed in a source chain and a cross-chain engine module and a transaction execution module which are deployed in a target chain;
the cross-chain engine module of the source chain is used for initiating cross-chain registration to the target chain, receiving a registration result returned by the target chain, initiating cross-chain transaction to the target chain and receiving a transaction result returned by the target chain;
the cross-chain engine module of the target chain comprises a registration module and a verification module;
the registration module receives a cross-chain registration request, checks registration information sent by a source chain, issues a cross-chain certificate of the source chain, generates a cross-chain intelligent contract, generates an access control rule and a transaction verification rule of the source chain according to the registration information, and returns a registration result to the source chain;
the verification module receives the cross-chain transaction request, decrypts the cross-chain transaction request by using a private key, checks the cross-chain transaction, executes an access control rule of a cross-chain contract after the check is passed, and executes a transaction verification rule after the check is passed; and after the cross-chain transaction is verified, the transaction is converted into a target chain transaction structure, the target chain transaction structure is sent to a transaction execution module of the target chain transaction structure to execute the transaction, and a transaction result is returned to the source chain.
10. A computer device, comprising: a memory and a processor; the memory having stored thereon a computer program executable by the processor; the processor, when executing the computer program, performs the method of any of claims 1 to 8.
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| CN112738139A (en) * | 2021-03-30 | 2021-04-30 | 支付宝(杭州)信息技术有限公司 | Cross-link access control method and device |
| CN112769871A (en) * | 2021-03-30 | 2021-05-07 | 支付宝(杭州)信息技术有限公司 | Cross-chain access control method and device |
| CN112800404A (en) * | 2021-03-30 | 2021-05-14 | 支付宝(杭州)信息技术有限公司 | Cross-link access control method and device |
| CN113271311A (en) * | 2021-05-28 | 2021-08-17 | 中国人民银行数字货币研究所 | Digital identity management method and system in cross-link network |
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| CN113746824A (en) * | 2021-08-26 | 2021-12-03 | 浙商银行股份有限公司 | Block chain cross-chain based private data sharing method, equipment and storage medium |
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| CN113850607A (en) * | 2021-11-29 | 2021-12-28 | 中国信息通信研究院 | Data cross-chain transfer method and system based on distributed identity |
| CN117294447A (en) * | 2023-10-18 | 2023-12-26 | 河北省科学院应用数学研究所 | Trusted authentication method and device based on blockchain, terminal equipment and storage medium |
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| CN113706148B (en) * | 2021-08-27 | 2023-09-29 | 杭州云象网络技术有限公司 | Cross-link method, system, storage medium and device based on channel authority control |
| CN113706148A (en) * | 2021-08-27 | 2021-11-26 | 杭州云象网络技术有限公司 | Channel authority control-based chain crossing method, system, storage medium and device |
| CN113746858B (en) * | 2021-09-10 | 2022-09-30 | 云南大学 | Cross-chain communication method based on verifiable random function |
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