CN114154996A - Cross-block-chain data transfer method and system, storage medium and terminal - Google Patents

Cross-block-chain data transfer method and system, storage medium and terminal Download PDF

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CN114154996A
CN114154996A CN202111222677.6A CN202111222677A CN114154996A CN 114154996 A CN114154996 A CN 114154996A CN 202111222677 A CN202111222677 A CN 202111222677A CN 114154996 A CN114154996 A CN 114154996A
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block chain
consensus
chain
request
information
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张博
王震
贾尧
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Hainan Fire Chain Technology Co ltd
Hengyang Yancheng Blockchain Research Institute
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Hainan Fire Chain Technology Co ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/42—Confirmation, e.g. check or permission by the legal debtor of payment
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/02—Payment architectures, schemes or protocols involving a neutral party, e.g. certification authority, notary or trusted third party [TTP]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
    • G06Q20/3823—Payment protocols; Details thereof insuring higher security of transaction combining multiple encryption tools for a transaction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
    • G06Q20/3827—Use of message hashing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
    • G06Q20/3829—Payment protocols; Details thereof insuring higher security of transaction involving key management

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Abstract

The invention discloses a data transfer method and a system of a cross-block chain, a storage medium and a terminal, which respectively send cross-domain requests of a first block chain, a second block chain and a third block chain to a relay chain so that the cross-domain requests with transfer requests, guarantee confirmation information and release confirmation information can be transferred among the first block chain, the second block chain and the third block chain, thereby avoiding the problem that the first block chain, the second block chain and the third block chain cannot be interacted due to the inconsistency of the first block chain, the second block chain and the third block chain on physical and digital levels, achieving the purpose of mutually communicating the first block chain, the second block chain and the third block chain through the relay chain, and further improving the efficiency of the cross-domain requests with transfer requests among different block chains.

Description

Cross-block-chain data transfer method and system, storage medium and terminal
Technical Field
The present invention relates to the field of inter-chain management technology for blockchains, and in particular, to a method and a system for data transfer of a blockchain, a storage medium, and a terminal.
Background
The problems that the bottom layer technology is complex, network protocols are difficult to intercommunicate, data structures are difficult to be compatible, cross-domain data are difficult to supervise and the like in the current financial block chain ecology are solved, so that all participants of the financial block chain need to pay attention to the difference and the sameness of the bottom layer block chain technology, the problem that data in all block chains form isolated islands is caused, and the transfer efficiency of the data between the isomorphic block chains and the heterogeneous block chains is influenced to be rapidly realized.
Disclosure of Invention
In view of the above, the present invention provides a method and a system for data transfer across block chains, a storage medium, and a terminal, and mainly aims to improve the transfer efficiency of a cross-domain request with a transfer request between different block chains.
According to an aspect of the present invention, there is provided a method for data flow across a block chain, including:
the method comprises the steps that a first block chain receives a circulation request of a user, wherein the circulation request comprises user credit information and pre-circulation digital asset information;
pushing the circulation request to a second block chain corresponding to a guarantee party through a relay chain for checking, and judging whether the circulation request is guaranteed by the user;
if yes, the second block chain pushes guarantee confirmation information to the relay chain;
pushing the circulation request and the guarantee confirmation information to a third block chain corresponding to the issuer through the relay chain for auditing, and judging whether the digital assets are issued for the user or not;
if yes, the release confirmation information is pushed to the first block chain through the relay chain, and the first block chain and the third block chain are respectively accounted according to the pre-transfer digital asset information.
Further, the pushing the circulation request to a second block chain audit corresponding to a guarantor through a relay chain to judge whether the circulation request is a user guaranty includes:
pushing, by a node of the first blockchain, the user credit information to a first target node of the relay chain;
the first target node of the relay chain broadcasts the user credit information to all nodes in the relay chain, and all nodes in the relay chain vote in a consensus mode to elect a first consensus node;
all the first consensus nodes perform consensus voting according to the circulation request, and whether user credit passes is determined according to consensus results of all the first consensus nodes;
if the consensus result is yes, pushing the circulation request on the first consensus node to the second block chain.
Further, the pushing the circulation request to a second block chain audit corresponding to a guarantor through a relay chain to determine whether the circulation request is a user guaranty, further includes:
attaching guarantor identity information to the first consensus node, the guarantor identity information comprising guarantor address information;
based on the sponsor address information, the first common identifying node of the relay chain pushes the flow request to a designated sponsor in the second blockchain corresponding to the sponsor identity information.
Further, the pushing, by the second blockchain, guarantee confirmation information to the relay chain includes:
receiving, by a second target node in the second blockchain, the flow request pushed by the relay chain;
the second target node broadcasts the circulation request to all second consensus nodes in the second block chain;
after all the second consensus nodes receive the circulation request, voting consensus on the circulation request, and determining whether a guarantee passes according to the consensus results of all the second consensus nodes;
and if the result of the consensus is positive, attaching the guarantee confirmation information to the second consensus node, and pushing the guarantee confirmation information to the relay chain through the second consensus node.
Further, the pushing the circulation request and the guarantee confirmation information to a third block chain corresponding to the issuer through the relay chain for auditing and judging whether to issue the digital asset for the user includes:
receiving the circulation request and guarantee confirmation information through a first target node in the relay chain;
the first target node of the relay chain broadcasts the circulation request and guarantee confirmation information to all nodes in the relay chain, and all nodes in the relay chain know together and vote, and a fourth known node is elected;
after all the fourth consensus nodes according to the circulation request and guarantee confirmation information, voting on the consensus of the circulation request, and determining whether the user credit passes according to the consensus results of all the fourth consensus nodes;
and if the result of the consensus is positive, pushing the circulation request and guarantee confirmation information on the fourth consensus node to the third block chain.
Further, the pushing the circulation request and the guarantee confirmation information on the fourth consensus node to the third block chain further includes:
the first block chain pushes a circulation request carrying a public key to a fourth consensus node of the relay chain, wherein the public key has an operation authority on guarantee confirmation information of a designated guarantee party;
verifying, at a fourth consensus node of the relay chain, an operating right of the public key to vouch-for confirmation information located at the fourth consensus node;
if the verification is passed, the guarantor agrees to guaranty the user, and pushes the circulation request and the guaranty confirmation information on the fourth consensus node to the third block chain for auditing; and if the verification is not passed, the guarantor does not approve the guaranty of the user and pushes the circulation request and the information of the approval guaranty on the fourth consensus node to the first blockchain.
Further, after all the fourth consensus nodes receive the guarantee confirmation information and before performing consensus voting on the guarantee confirmation information, the method further includes:
determining whether the guarantee of the guarantor for the user aiming at the pre-transfer digital asset information is standard or not according to bank flow data of the user and the guarantor;
if the standard is met, credit investigation of the user and the guarantor is made, and the credit investigation is attached to the fourth consensus node; and if the information is not in the standard, stopping receiving the guarantee confirmation information at all the fourth consensus nodes.
Further, the pushing the circulation request and the guarantee confirmation information to a third block chain corresponding to the issuer through the relay chain for auditing and judging whether to issue the digital asset for the user includes:
pushing the flow request to a third target node of the third block chain through the relay chain;
the third target node broadcasts the circulation request and guarantee confirmation information to all third consensus nodes of the third block chain;
all third consensus nodes of the third block chain perform consensus voting according to the circulation request and guarantee confirmation information, and determine whether the asset circulation of the user by the issuer passes or not according to the consensus results of all the third consensus nodes;
and if the consensus result is yes, attaching the issuing confirmation information to the third consensus node, and pushing the issuing confirmation information to the relay chain through the third consensus node.
Further, if yes, the method pushes the release confirmation information to the first block chain through the relay chain, and the first block chain and the third block chain respectively account according to the pre-transfer digital asset information, and includes:
all the first target nodes broadcast the issuing confirmation information to all the nodes in the relay chain, and all the nodes in the relay chain know and vote together to elect a fifth known node;
all the fifth consensus nodes perform consensus voting according to the issuing confirmation information, and determine whether the circulation request passes according to the consensus results of all the fifth consensus nodes;
and if the consensus result is yes, modifying the number of the digital assets of the user by the first block chain and the third block chain respectively according to the pre-transfer digital asset information.
According to another aspect of the present invention, there is provided a data flow system across a block chain, comprising:
the task receiving module is used for receiving a circulation request of a user from a client by a first block chain, wherein the circulation request comprises user credit information and pre-circulation digital asset information;
the guarantee auditing module is used for pushing the circulation request to a second block chain corresponding to a guarantee party through a relay chain for auditing and judging whether the circulation request is guaranteed by the user;
a guarantee confirmation information pushing module, configured to, if yes, push guarantee confirmation information to the relay link by the second block chain;
the asset issuing and checking module is used for pushing the circulation request and the guarantee confirmation information to a third block chain corresponding to an issuing party through the relay chain for checking and judging whether the digital assets are issued for the user or not;
and the asset issuing module is used for pushing issuing confirmation information to the first block chain through the relay chain if the issuing confirmation information is received, and the first block chain and the third block chain are respectively booked according to the pre-transfer digital asset information.
According to still another aspect of the present invention, a storage medium is provided, and the storage medium stores at least one executable instruction, which causes a processor to perform operations corresponding to the above data flow method across block chains.
According to still another aspect of the present invention, there is provided a terminal including: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is used for storing at least one executable instruction, and the executable instruction enables the processor to execute the operation corresponding to the data flow method of the trans-block chain.
According to another aspect of the present invention, there is provided another storage medium having at least one executable instruction stored therein, the executable instruction causing a processor to perform operations corresponding to the above cross block chain data flow method.
According to still another aspect of the present invention, there is provided another terminal including: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is used for storing at least one executable instruction, and the executable instruction enables the processor to execute the operation corresponding to the data flow method of the trans-block chain.
By the technical scheme, the technical scheme provided by the embodiment of the invention at least has the following advantages:
the invention provides a data flow method and a system of a cross-block chain, a storage medium and a terminal, compared with the prior art, the embodiment of the invention respectively sends the cross-domain requests of the first block chain, the second block chain and the third block chain to the relay chain, so that the cross-domain request accompanied with the circulation request, the guarantee confirmation information and the release confirmation information are circulated among the first block chain, the second block chain and the third block chain, thereby avoiding the problem that the first block chain, the second block chain and the third block chain cannot interact with each other due to the inconsistency of the first block chain, the second block chain and the third block chain in the physical and digital levels, so as to realize the purpose of mutually communicating the first block chain, the second block chain and the third block chain through the relay chain, thereby improving the circulation efficiency of the cross-domain request with circulation request among different block chains.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 shows a flowchart of a data flow method across a block chain according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating another data flow method across a block chain according to an embodiment of the present invention;
fig. 3 is a block diagram illustrating a data flow system across a block chain according to an embodiment of the present invention;
FIG. 4 is a block diagram illustrating a data flow system across a chain of blocks according to another embodiment of the present invention;
fig. 5 shows a physical structure diagram of a computer device according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The invention aims to realize the circulation of digital assets, which is embedded into a third-party platform in the forms of plug-ins, applets or public numbers and the like, and the digital assets are acquired, stored or traded in a simplified, quick and even non-inductive way by inputting digital asset operation instructions and receiving feedback information through the third-party platform. The digital assets include not only encrypted digital currency, but also legal digital currency such as DC/EP and stable digital currency such as Facebook Libra, GUSD, etc.
An embodiment of the present invention provides a data flow method across a block chain, as shown in fig. 1, the method includes:
101. the first blockchain receives a streaming request from a user, the streaming request including user credit information and pre-transfer digital asset information.
Digital assets refer to non-monetary assets owned or controlled by a business or person, in the form of electronic data, held in daily activities for sale or in the process of production. Users are typically required to acquire, store, and trade digital assets on a blockchain platform.
It should be noted that, the user requests the circulation instruction through a third-party platform sent to the client, where the third-party platform may be a social platform, a video platform, a telecom operator platform, a game platform, a charitable public service platform, and the like, and includes but is not limited to WeChat, QQ, microblog, Telegram, Line, Facebook, Twitter, WhatsApp, Totokk, SMS short message, and the like.
The user inputs a stream transfer request instruction on a third-party platform, the third-party platform sends user credit information and pre-transfer digital asset information, and then the first block chain obtains the user credit information and the pre-transfer digital asset information. A user can input character instructions and voice instructions through a client side of the third-party platform, and instruction semantics of the voice instructions are analyzed through a voice conversion function of the third-party platform in order to facilitate machine recognition. Because the circulation request instruction can be analyzed only when meeting a certain rule, if the character instruction is input, the character instruction is directly obtained and determined as the digital asset operation instruction, and if the voice instruction is input, the instruction semantic corresponding to the voice instruction needs to be converted into the corresponding semantic instruction according to the preset rule, and the semantic instruction is determined as the digital asset operation instruction.
102. And pushing the circulation request to a second block chain corresponding to a guarantee party through a relay chain for checking, and judging whether the circulation request is guaranteed by the user.
Specifically, after receiving a cross-domain request with a transfer request, a node of a relay chain initiates the cross-domain request with the transfer request to a relay chain where a credit investigation institution and a supervision department are located, and the cross-domain request with the transfer request attached to the relay chain is pushed to a second block chain corresponding to a guarantee party, so that the transfer request is audited in the second block chain, and the cross-domain request with the transfer request between the first block chain and the second block chain is completed.
The second blockchain judges whether the guarantor agrees to guarantee the user through the credit information of the user and the pre-transferred digital asset information, wherein the credit information of the user can comprise the bank flow information of the user, the loan information of the user, the real estate information of the user, the overdue information of a credit card and the like, and if the guarantor evaluates the credit information of the user and the pre-transferred digital asset information, the credit degree of the user is determined to be higher, and then the user agrees to guarantee the user; if the guarantor determines that the user has a low credit level, the guarantor does not guarantee the user, and sends information of not approving the guarantor to the user through the relay link.
103. If so, the second block chain pushes guarantee confirmation information to the relay chain.
Wherein the warranty confirmation information is attached with a signature of the warranty policy on the flow request, and when the warranty agrees to warrant the flow request for the user, the second block chain initiates a cross-domain request attached with the warranty confirmation information and the signature to the relay chain.
104. And pushing the circulation request and the guarantee confirmation information to a third block chain corresponding to the issuer through the relay chain for auditing, and judging whether the digital assets are issued for the user.
Specifically, after receiving the cross-domain request accompanied with the transfer request and the guarantee confirmation information, the node of the relay chain then initiates the cross-domain request accompanied with the transfer request and the guarantee confirmation information to the third blockchain corresponding to the issuer, so that the transfer request and the guarantee confirmation information are audited in the third blockchain, and the cross-domain request about the transfer request between the second blockchain and the third blockchain is completed.
105. If yes, the release confirmation information is pushed to the first block chain through the relay chain, and the first block chain and the third block chain are respectively accounted according to the pre-transfer digital asset information.
After the node of the relay chain receives the cross-domain request attached with the release confirmation information, the first block chain initiates the cross-domain request attached with the pre-transfer digital asset information and the release confirmation information, the first block chain correspondingly increases and modifies the digital asset of the user according to the pre-transfer digital asset information and the release confirmation information, and the third block chain correspondingly decreases and modifies the digital asset of the release party according to the pre-transfer digital asset information, so that the first block chain and the third block chain respectively account according to the pre-transfer digital asset information.
Compared with the prior art, the embodiment of the invention provides a data transfer method of a trans-block chain, wherein a transfer request of a user is pushed to a relay chain through a first block chain, then the transfer request is pushed to a second block chain audit corresponding to a guarantee party through the relay chain, after the user is judged to be guaranteed, the second block chain pushes guarantee confirmation information to the relay chain, then the transfer request and the guarantee confirmation information are pushed to a third block chain audit corresponding to an issuer through the relay chain, after the fact that the user issues digital resources is judged, the issue confirmation information is pushed to the first block chain through the relay chain, and the first block chain and the third block chain are respectively booked according to pre-transferred digital asset information. According to the invention, the cross-domain requests of the first block chain, the second block chain and the third block chain are respectively sent to the relay chain, so that the cross-domain requests with the transfer requests, the guarantee confirmation information and the release confirmation information can be transferred among the first block chain, the second block chain and the third block chain, and further the problem that the first block chain, the second block chain and the third block chain cannot be interacted due to the inconsistency of the first block chain, the second block chain and the third block chain on physical and digital levels is avoided, the purpose of mutually communicating the first block chain, the second block chain and the third block chain through the relay chain is realized, and the transfer efficiency of the cross-domain requests with the transfer requests among different block chains is improved.
An embodiment of the present invention provides another data flow method across a block chain, as shown in fig. 2, the method includes:
201. the first blockchain receives a streaming request from a user, the streaming request including user credit information and pre-transfer digital asset information.
Specifically, before the first blockchain receives the streaming request of the user, the method further includes: when a starting request instruction of a third-party platform is received, generating an account establishing instruction; and creating a block chain account according to the account creating instruction, wherein the account creating instruction is executed, the block chain account is created, and the account address of the block chain account is in one-to-one correspondence with the account information of the third-party platform. The starting request instruction is used for building a communication channel between the third-party platform and the block chain platform, the implementation mode of the communication channel can be an applet, a plug-in, a public number and the like, and the implementation mode of the communication channel is not limited in the embodiment of the invention. When a starting request instruction of a third-party platform is received, generating an account creating instruction, wherein the generating of the account creating instruction specifically comprises the following steps: when a starting request instruction of a third-party platform is received, acquiring account information of a user logging in the third-party platform; and generating an account number creating instruction, wherein the block chain account number in the account number creating instruction comprises account number information. The account creating instruction is used for creating an account address based on the seed by taking account information of a user logging in a third-party platform as the seed and a random hash algorithm. The account information may include an account, password, fingerprint, etc., and the blockchain account includes all of the account information. The account creation instructions are in accordance with a service contract that the blockchain platform can execute.
202. Pushing, by a node of the first blockchain, the user credit information to a first target node of the relay chain.
It should be noted that the first blockchain, the second blockchain, and the third blockchain all have read-write permissions. Meanwhile, other nodes with read-write permission and storage permission, such as operation nodes and the like, exist in the first block chain, the second block chain and the third block chain, and the nodes can deploy a circulation request to be applied to the block chain and execute a series of operations such as upgrading, maintaining and operating. In the relay chain, a credit investigation institution and a supervision institution have read-write permission.
Meanwhile, a first target node exists in the relay chain, and the first target node is used for butting the first block chain, the second block chain and the third block chain so as to realize routing of a cross-domain request among the first block chain, the second block chain and the third block chain. In addition, credit investigation and regulatory agencies may exercise regulation on cross-domain requests in addition to providing corresponding credentials to users, vouchers, and issuers.
Since the first blockchain is a passive, closed point-to-point network as the underlying blockchain, the cross-domain request cannot be actively routed outside the blockchains of other layers. Therefore, the purpose of opening the relay chain from the first block chain to other block chains can be realized by requesting the cross-domain of the first block chain from the first target node of the relay chain and forwarding the corresponding cross-domain request to the relay chain network for consensus.
203. And broadcasting the user credit information to all nodes in the relay chain by a first target node of the relay chain, wherein all nodes in the relay chain agree and vote, and a first consensus node is elected.
For the embodiment of the invention, in order to improve the circulation accuracy of the cross-domain request with the circulation request, the pre-transfer digital asset information on all the first consensus nodes can be kept consistent by broadcasting the pre-transfer digital asset information to the nodes in the relay chain by the first target node of the relay chain, and then the first consensus nodes are selected to perform consensus processing on the credit information of the user by performing consensus voting on all the nodes in the relay chain, so that the pushing quantity of the cross-domain request by the nodes in the relay chain can be reduced, and the processing efficiency of the cross-domain request pushed by the digital asset information input by the user in the relay chain by a third-party platform can be ensured.
204. And all the first consensus nodes vote for consensus of the circulation request, and whether user credit passes is determined according to the consensus results of all the first consensus nodes.
Because the relay chain realizes consensus based on the delegation rights and interests certification, the transfer efficiency of the cross-domain request is improved through a more environment-friendly voting mode of all the first consensus nodes.
Because the number of the nodes of the relay link is too many, the situation that the branching amount of the relay link is too many and finally the transfer efficiency is reduced can occur, therefore, after all the nodes receive the transfer request, the first consensus node is elected, the transfer request is voted through the first consensus node, the number of the nodes voting for the transfer request is reduced, the process of voting the transfer request through the nodes in the relay link for consensus of the transfer request is simplified, and the transfer efficiency of the transfer request is improved.
205. If the consensus result is yes, pushing the circulation request on the first consensus node to the second block chain.
Specifically, after receiving a cross-domain request attached with a transfer request, a node of a relay chain, which is connected to a first block chain, broadcasts the request to other nodes in a network, determines a first consensus node in a election mode, votes for the received cross-domain request through the first consensus node of the relay chain, the first consensus node performs consensus on the transfer request, attaches user credit information to the cross-domain request, and improves transfer efficiency of the cross-domain request in a more reliable node consensus mode.
When a requestor designates a guarantor to undertake its insurance, in order to quickly push a flow request to a second blockchain corresponding to the guarantor, so as to further improve data flow accuracy across the blockchains, step 205 further includes: attaching guarantor identity information to the first consensus node, the guarantor identity information comprising guarantor address information; based on the sponsor address information, the first common identifying node of the relay chain pushes the flow request to a designated sponsor in the second blockchain corresponding to the sponsor identity information.
206. The second blockchain pushes warranty confirmation information to the relay chain.
For the embodiment of the present invention, in order to further improve the efficiency of data flow across a block chain, the step 206 includes: receiving, by a second target node in the second blockchain, the flow request pushed by the relay chain; the second target node broadcasts the circulation request to all second consensus nodes in the second block chain; after all the second consensus nodes receive the circulation request, voting consensus on the circulation request, and determining whether a guarantee passes according to the consensus results of all the second consensus nodes; and if the result of the consensus is positive, attaching the guarantee confirmation information to the second consensus node, and pushing the guarantee confirmation information to the relay chain through the second consensus node.
In order to improve the circulation accuracy of the cross-domain request with the guarantee confirmation information, the second target node in the second block chain broadcasts the circulation request to all the second consensus nodes in the second block chain, so that the circulation requests on all the second consensus nodes are kept consistent, the auditing results of the guarantors obtained on the second consensus nodes are ensured to be consistent, and the circulation efficiency and the accuracy of the cross-domain request are improved.
207. And pushing the circulation request and the guarantee confirmation information to a third block chain corresponding to the issuer through the relay chain for auditing, and judging whether the digital assets are issued for the user.
For the embodiment of the present invention, in order to further improve the efficiency of data flow across a block chain, step 207 further includes: receiving the circulation request and guarantee confirmation information through a first target node in the relay chain; the first target node of the relay chain broadcasts the circulation request and guarantee confirmation information to all nodes in the relay chain, and all nodes in the relay chain know together and vote, and a fourth known node is elected; after all the fourth consensus nodes according to the circulation request and guarantee confirmation information, voting on the consensus of the circulation request, and determining whether the user credit passes according to the consensus results of all the fourth consensus nodes; and if the result of the consensus is positive, pushing the circulation request and guarantee confirmation information on the fourth consensus node to the third block chain.
In order to improve the accuracy of the transfer of the cross-domain request with the transfer request and the guarantee confirmation information, the transfer request and the guarantee confirmation information on all the nodes can be kept consistent by broadcasting the transfer request and the guarantee confirmation information to the nodes in the relay chain by the first target node of the relay chain, and whether the guarantee is guaranteed or not is determined by selecting the fourth consensus node by voting the consensus of all the nodes in the relay chain, so that the pushing quantity of the cross-domain request by the nodes in the relay chain can be reduced, and the accuracy and the data transfer precision of the cross-block chain can be improved.
For the embodiment of the present invention, in order to further improve the accuracy of data flow across a block chain, step 207 further includes: the pushing the circulation request and the guarantee confirmation information on the fourth consensus node to the third blockchain further includes: the first block chain pushes a circulation request carrying a public key to a fourth consensus node of the relay chain, wherein the public key has an operation authority on guarantee confirmation information of a designated guarantee party; verifying, at a fourth consensus node of the relay chain, an operating right of the public key to vouch-for confirmation information located at the fourth consensus node; if the verification is passed, the guarantor agrees to guaranty the user, and pushes the circulation request and the guaranty confirmation information on the fourth consensus node to the third block chain for auditing; and if the verification is not passed, the guarantor does not approve the guaranty of the user and pushes the circulation request and the information of the approval guaranty on the fourth consensus node to the first blockchain. And pushing a circulation request carrying a public key to a fourth consensus node of the relay link through the first block link, so that the public key correspondingly verifies the operation authority of the guarantee confirmation information on the fourth consensus node, the public key verification processing process is simplified, and the data is more conveniently processed across contracts.
In order to ensure that the state of the flow request is normal, the method further includes, after all the fourth consensus nodes receive the guarantee confirmation information, voting on the guarantee confirmation information in a consensus manner, and before electing a fourth consensus node: according to bank flow data of a user and a guarantor, determining whether the guarantor is a user for the guarantor is standard or not; if the standard is met, credit investigation of the user and the guarantor is made, and the credit investigation is attached to the fourth consensus node; and if the information is not in the standard, stopping receiving the guarantee confirmation information at all the fourth consensus nodes.
For example, all the bank flow data of the user and the guarantor within a preset historical time period are acquired, wherein the bank flow data include all data of the user and the guarantor during operation on the user account respectively, such as login, transfer, balance checking, payment and the like. Wherein; the preset historical time period can be one month, six months and the like, and the specific preset historical time period can be set according to actual conditions. Determining association degree information between the user and the guarantor according to the bank flow data and the intersection degree of the bank flow data, and determining whether the guarantor is standard or not according to the association degree information and the pre-transfer digital asset information; specifically, the association degree information refers to the association between the user and the guarantor about the bank flow data, and the higher the intersection degree of the bank flow data between the user and the guarantor is, the higher the association degree information is, the higher the degree that the guarantor is out of compliance with the specification is.
208. If yes, the release confirmation information is pushed to the first block chain through the relay chain, and the first block chain and the third block chain are respectively accounted according to the pre-transfer digital asset information.
In order to improve the circulation accuracy of the cross-domain request with the circulation request and the guarantee confirmation information, the pre-transferred digital asset information is pushed to a third target node of a third block chain, the circulation request and the guarantee confirmation information are broadcasted to all third consensus nodes of the third block chain, and whether the digital asset is issued for the user or not is judged by all the third consensus nodes according to the circulation request and the guarantee confirmation information, so that the judgment of all the third consensus nodes on the circulation request and the guarantee confirmation information is consistent, the consistency of the obtained judgment result after the judgment result is pushed to the first block chain through the relay chain is further ensured, and the circulation accuracy of the judgment result between the first block chain and the third block chain is increased.
Wherein, the pushing the release confirmation information to the first block chain through the relay chain, and the accounting of the first block chain and the third block chain according to the pre-transfer digital asset information respectively comprise: all the first target nodes broadcast the issuing confirmation information to all the nodes in the relay chain, and all the nodes in the relay chain know and vote together to elect a fifth known node; all the fifth consensus nodes perform consensus voting according to the issuing confirmation information, and determine whether the circulation request passes according to the consensus results of all the fifth consensus nodes; and if the consensus result is yes, modifying the number of the digital assets of the user by the first block chain and the third block chain respectively according to the pre-transfer digital asset information.
In order to improve the circulation accuracy of the cross-domain request attached with the circulation request and the guarantee confirmation information, the first target node of the relay chain broadcasts the issuing confirmation information to the nodes in the relay chain, so that the issuing confirmation information on all the nodes can be kept consistent, and the fifth consensus node is selected to perform consensus processing on whether to issue assets or not by performing consensus voting on all the nodes in the relay chain, so that the pushing quantity of the cross-domain request by the nodes in the relay chain can be reduced, and the data circulation accuracy and the accuracy of the cross-block chain are improved.
The embodiment of the invention provides another data transfer method of a cross-domain block chain, and compared with the prior art, based on the condition that a first block chain, a second block chain and a third block chain are used as underlying block chains and are passive and closed point-to-point networks, and a cross-domain request cannot be actively routed to block chains of other layers, a first target node of a relay chain requests cross-domains of the first block chain, the second block chain and the third block chain, so that the cross-domain request with the transfer request is commonly identified at a first common node, a third common node and a fifth common node corresponding to the relay chain, and the transfer efficiency of the cross-domain request is improved in a more environment-friendly voting mode, a mode of reducing the common identification number of the voting relay chain node to the transfer request and a more reliable mode of the nodes. Because the first block chain, the second block chain and the third block chain adopt different consensus and different bottom layer architectures, the cross-domain request is forwarded to the relay chain through the corresponding nodes, a unified on-chain credit circulation logic is constructed, the inconsistency of physical and digital layers is shielded, and the whole network ecology of the golden block chain is opened.
Further, as an implementation of the method shown in fig. 1, an embodiment of the present invention provides a data flow system across a block chain, and as shown in fig. 3, the system includes:
the task receiving module 31 is configured to receive, by the first blockchain, a circulation request from the client by the user, where the circulation request includes user credit information and pre-circulation digital asset information;
a guarantee auditing module 32, configured to push the circulation request to a second block chain corresponding to the guarantor through the relay chain for auditing, and determine whether the circulation request is a user guarantee;
a guarantee confirmation information pushing module 33, configured to, if yes, push guarantee confirmation information to the relay link by the second block chain;
the asset issuing and auditing module 34 is used for pushing the circulation request and the guarantee confirmation information to a third block chain corresponding to the issuing party through the relay chain for auditing and judging whether the digital assets are issued for the user or not;
and the asset issuing module 35 is configured to, if yes, push the issuing confirmation information to the first block chain through the relay chain, and account the first block chain and the third block chain respectively according to the pre-transfer digital asset information.
Further, as shown in fig. 4, the system further includes:
the task receiving module 41 is used for the first block chain to receive a circulation request of a user from a client, wherein the circulation request comprises user credit information and pre-circulation digital asset information;
the warranty review module 42 includes:
a first pushing unit 421, configured to push the user credit information to a first target node of the relay chain through a node of the first block chain;
a first broadcasting unit 422, configured to broadcast, by a first target node of the relay chain, the user credit information to all nodes in the relay chain, where all nodes in the relay chain consensus vote to elect a first consensus node
A first voting unit 423, configured to determine, by all the first common node, whether a user credit passes according to a common result of all the first common node;
a first auditing unit 424, configured to, if a consensus result is yes, push the flow request on the first consensus node to the second block chain.
A guarantee confirmation information pushing module 43, configured to, if yes, push guarantee confirmation information to the relay link by the second block chain;
the asset issuing and checking module 44 is configured to push the circulation request and the guarantee confirmation information to a third block chain corresponding to the issuing party through the relay chain for checking, and determine whether the digital asset is issued by the user;
and the asset issuing module 45 is configured to, if yes, push the issuing confirmation information to the first block chain through the relay chain, and account the first block chain and the third block chain respectively according to the pre-transfer digital asset information.
Further, the system further comprises:
a guarantor identity information unit to attach, to the first consensus node, guarantor identity information, the guarantor identity information including guarantor address information;
a sponsor determination unit to push the flow request to a designated sponsor in the second blockchain corresponding to the sponsor identity information based on the sponsor address information.
Further, the guarantee confirmation information pushing module 43 includes:
a second pushing unit, configured to receive, by a second target node in the second blockchain, the flow request pushed by the relay chain;
a second broadcasting unit, configured to broadcast, by the second target node, the flow request to all second consensus nodes in the second block chain;
the second voting unit votes for consensus of the circulation request after all the second consensus nodes receive the circulation request, and determines whether guarantee passes according to consensus results of all the second consensus nodes;
and a third pushing unit configured to attach the guarantee confirmation information to the second common node and push the guarantee confirmation information to the relay link via the second common node if the common result is yes.
Further, the guarantee confirmation information pushing module 43 further includes:
a receiving unit, configured to receive the transfer request and guarantee confirmation information through a first target node in the relay chain;
a third voting unit, configured to broadcast, by the first target node of the relay chain, the circulation request and guarantee confirmation information to all nodes in the relay chain, where all nodes in the relay chain agree to vote and elect a fourth consensus node;
a guarantee consensus unit, configured to vote on the consensus of the circulation request after all the fourth consensus nodes perform guarantee according to the circulation request and guarantee confirmation information, and determine whether a user credit passes according to a consensus result of all the fourth consensus nodes;
a fourth pushing unit, configured to push the circulation request and the guarantee confirmation information on the fourth consensus node to the third blockchain if the consensus result is yes.
Further, the fourth pushing unit includes:
a public key pushing subunit, configured to push, by the first block chain, a circulation request carrying a public key to a fourth consensus node of the relay chain, where the public key has an operation permission for guaranty confirmation information of an assigned guarantor;
a verification subunit, configured to verify, at a fourth consensus node of the relay chain, an operation authority of the public key on guarantee confirmation information located at the fourth consensus node;
an audit pushing subunit, configured to, if the verification is passed, the guarantor agrees to guaranty the user, and pushes the flow transfer request and the guaranty confirmation information on the first consensus node to the third block chain audit; and if the verification is not passed, the guarantor does not approve the guaranty of the user and pushes the circulation request and the information of the approval guaranty on the fourth consensus node to the first blockchain.
Further, the system further comprises:
a guarantee compliance determining unit, configured to determine, according to bank flow data of a user and a guarantor, whether a guarantee of the guarantor for the user for the pre-transfer digital asset information is normative;
a credit investigation evidence pushing unit, configured to, if normalized, issue credit investigation evidence of a user and a guarantor, and attach the credit investigation evidence to the fourth consensus node; and if the information is not in the standard, stopping receiving the guarantee confirmation information at all the fourth consensus nodes.
Further, the asset issuance auditing module 44 includes:
a fifth pushing unit, configured to push the flow request to a third target node of the third block chain through the relay chain;
a third broadcasting unit, configured to broadcast, by the third target node, the streaming request and guarantee confirmation information to all third consensus nodes of the third block chain;
the issuing judgment unit is used for recognizing and voting by all third recognition nodes of the third block chain according to the transfer request and guarantee confirmation information and determining whether the asset transfer of the issuer to the user passes or not according to the recognition results of all the third recognition nodes;
and a sixth pushing unit, configured to attach the release confirmation information to the third consensus node if the consensus result is yes, and push the release confirmation information to all the first consensus nodes of the relay chain through the third consensus node.
Further, the asset issuance auditing module 44 includes:
a fourth voting unit, configured to broadcast, by all the first target nodes, the release confirmation information to all the nodes in the relay chain, where all the nodes in the relay chain agree to vote and elect a fifth consensus node;
the issuing confirmation unit is used for confirming and voting by all the fifth consensus nodes according to the issuing confirmation information and determining whether the circulation request passes or not according to the consensus results of all the fifth consensus nodes;
and the issuing unit modifies the number of the digital assets of the user according to the pre-transfer digital asset information respectively by the first block chain and the third block chain if the consensus result is positive.
It should be noted that other corresponding descriptions of the functional modules involved in the data flow system device across the block chain according to the embodiment of the present invention may refer to the corresponding description of the method shown in fig. 1, and are not described herein again.
Based on the method shown in fig. 1, correspondingly, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the following steps: the method comprises the steps that a first block chain receives a circulation request of a user, wherein the circulation request comprises user credit information and pre-circulation digital asset information; pushing the circulation request to a second block chain corresponding to a guarantee party through a relay chain for checking, and judging whether the circulation request is guaranteed by the user; if yes, the second block chain pushes guarantee confirmation information to the relay chain; pushing the circulation request and the guarantee confirmation information to a third block chain corresponding to the issuer through the relay chain for auditing, and judging whether the digital assets are issued for the user or not; if yes, the release confirmation information is pushed to the first block chain through the relay chain, and the first block chain and the third block chain are respectively accounted according to the pre-transfer digital asset information. .
Based on the above embodiments of the method shown in fig. 1 and the apparatus shown in fig. 3, an embodiment of the present invention further provides an entity structure diagram of a computer device, as shown in fig. 5, where the computer device includes: a processor 51, a memory 52, and a computer program stored on the memory 52 and executable on the processor, wherein the memory 52 and the processor 51 are both arranged on a bus 53, and the processor 51 implements the following steps when executing the program: the method comprises the steps that a first block chain receives a circulation request of a user, wherein the circulation request comprises user credit information and pre-circulation digital asset information; pushing the circulation request to a second block chain corresponding to a guarantee party through a relay chain for checking, and judging whether the circulation request is guaranteed by the user; if yes, the second block chain pushes guarantee confirmation information to the relay chain; pushing the circulation request and the guarantee confirmation information to a third block chain corresponding to the issuer through the relay chain for auditing, and judging whether the digital assets are issued for the user or not; if yes, the release confirmation information is pushed to the first block chain through the relay chain, and the first block chain and the third block chain are respectively accounted according to the pre-transfer digital asset information.
Through the technical scheme of the invention, the cross-domain requests of the first block chain, the second block chain and the third block chain are respectively sent to the relay chain, so that the cross-domain request with the circulation request, the guarantee confirmation information and the issuing confirmation information are circulated among the first block chain, the second block chain and the third block chain, the problem that the first block chain, the second block chain and the third block chain cannot interact with each other due to the inconsistency of the first block chain, the second block chain and the third block chain in physical and digital layers is further avoided, and the purpose of mutually communicating the first block chain, the second block chain and the third block chain through the relay chain is achieved.
It will be apparent to those skilled in the art that the various modules or steps of the invention described above may be implemented using a general purpose computing device, they may be centralized on a single computing device or distributed across a network of computing devices, and optionally they may be implemented using program code executable by a computing device, such that it may be stored in a memory device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that shown or described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A method for data flow across block chains, comprising:
the method comprises the steps that a first block chain receives a circulation request of a user, wherein the circulation request comprises user credit information and pre-circulation digital asset information;
pushing the circulation request to a second block chain corresponding to a guarantee party through a relay chain for checking, and judging whether the circulation request is guaranteed by the user;
if yes, the second block chain pushes guarantee confirmation information to the relay chain;
pushing the circulation request and the guarantee confirmation information to a third block chain corresponding to the issuer through the relay chain for auditing, and judging whether the digital assets are issued for the user or not;
if yes, the release confirmation information is pushed to the first block chain through the relay chain, and the first block chain and the third block chain are respectively accounted according to the pre-transfer digital asset information.
2. The method of claim 1, wherein the pushing the flow request to a second blockchain audit corresponding to a guarantor via a relay chain to determine whether the flow request is a user guaranty comprises:
pushing, by a node of the first blockchain, the user credit information to a first target node of the relay chain;
the first target node of the relay chain broadcasts the user credit information to all nodes in the relay chain, and all nodes in the relay chain vote in a consensus mode to elect a first consensus node;
all the first consensus nodes perform consensus voting according to the circulation request, and whether user credit passes is determined according to consensus results of all the first consensus nodes;
if the consensus result is yes, pushing the circulation request on the first consensus node to the second block chain.
3. The method of claim 2, wherein the pushing the flow request to a second blockchain audit corresponding to a guarantor via a relay chain to determine whether the flow request is warranted by a user further comprises:
attaching guarantor identity information to the first consensus node, the guarantor identity information comprising guarantor address information;
based on the sponsor address information, the first common identifying node of the relay chain pushes the flow request to a designated sponsor in the second blockchain corresponding to the sponsor identity information.
4. The method of claim 1, wherein the pushing, by the second blockchain, warranty acknowledgement information to the relay chain comprises:
receiving, by a second target node in the second blockchain, the flow request pushed by the relay chain;
the second target node broadcasts the circulation request to all second consensus nodes in the second block chain;
after all the second consensus nodes receive the circulation request, voting consensus on the circulation request, and determining whether a guarantee passes according to the consensus results of all the second consensus nodes;
and if the result of the consensus is positive, attaching the guarantee confirmation information to the second consensus node, and pushing the guarantee confirmation information to the relay chain through the second consensus node.
5. The method of claim 1, wherein the pushing the circulation request and the guarantee confirmation information to a third blockchain corresponding to the issuer through the relay chain for auditing and determining whether to issue the digital asset for the user comprises:
receiving the circulation request and guarantee confirmation information through a first target node in the relay chain;
the first target node of the relay chain broadcasts the circulation request and guarantee confirmation information to all nodes in the relay chain, and all nodes in the relay chain know together and vote, and a fourth known node is elected;
after all the fourth consensus nodes according to the circulation request and guarantee confirmation information, voting on the consensus of the circulation request, and determining whether the user credit passes according to the consensus results of all the fourth consensus nodes;
and if the result of the consensus is positive, pushing the circulation request and guarantee confirmation information on the fourth consensus node to the third block chain.
6. The method of claim 5, wherein pushing the flow request and guarantee confirmation information on the fourth consensus node to the third blockchain further comprises:
the first block chain pushes a circulation request carrying a public key to a fourth consensus node of the relay chain, wherein the public key has an operation authority on guarantee confirmation information of a designated guarantee party;
verifying, at a fourth consensus node of the relay chain, an operating right of the public key to vouch-for confirmation information located at the fourth consensus node;
if the verification is passed, the guarantor agrees to guaranty the user, and pushes the circulation request and the guaranty confirmation information on the fourth consensus node to the third block chain for auditing; and if the verification is not passed, the guarantor does not approve the guaranty of the user and pushes the circulation request and the information of the approval guaranty on the fourth consensus node to the first blockchain.
7. The method of claim 5, wherein after all of the fourth consensus nodes receive the warranty confirmation information, and before voting on consensus on the warranty confirmation information, further comprising:
determining whether the guarantee of the guarantor for the user aiming at the pre-transfer digital asset information is standard or not according to bank flow data of the user and the guarantor;
if the standard is met, credit investigation of the user and the guarantor is made, and the credit investigation is attached to the fourth consensus node; and if the information is not in the standard, stopping receiving the guarantee confirmation information at all the fourth consensus nodes.
8. A system for data flow across a blockchain, comprising:
the task receiving module is used for receiving a circulation request of a user from a client by a first block chain, wherein the circulation request comprises user credit information and pre-circulation digital asset information;
the guarantee auditing module is used for pushing the circulation request to a second block chain corresponding to a guarantee party through a relay chain for auditing and judging whether the circulation request is guaranteed by the user;
a guarantee confirmation information pushing module, configured to, if yes, push guarantee confirmation information to the relay link by the second block chain;
the asset issuing and checking module is used for pushing the circulation request and the guarantee confirmation information to a third block chain corresponding to an issuing party through the relay chain for checking and judging whether the digital assets are issued for the user or not;
and the asset issuing module is used for pushing issuing confirmation information to the first block chain through the relay chain if the issuing confirmation information is received, and the first block chain and the third block chain are respectively booked according to the pre-transfer digital asset information.
9. A storage medium having stored therein at least one executable instruction that causes a processor to perform operations corresponding to the cross-blockchain data flow method of any of claims 1-7.
10. A terminal, comprising: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is used for storing at least one executable instruction, and the executable instruction causes the processor to execute the operation corresponding to the data circulation method across the block chain in any one of claims 1-7.
CN202111222677.6A 2021-10-20 2021-10-20 Cross-block-chain data transfer method and system, storage medium and terminal Pending CN114154996A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024082807A1 (en) * 2022-10-20 2024-04-25 腾讯科技（深圳）有限公司 Multi-blockchain-based asset transfer method and apparatus, and device, medium and product

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024082807A1 (en) * 2022-10-20 2024-04-25 腾讯科技（深圳）有限公司 Multi-blockchain-based asset transfer method and apparatus, and device, medium and product

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