CN110609868B - Cross-chain cooperative working method and system based on same-block chain platform - Google Patents
Cross-chain cooperative working method and system based on same-block chain platform Download PDFInfo
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Abstract
The invention relates to a chain-crossing cooperative working method and a system based on a same-block chain platform, which are characterized by comprising the following contents: 1) dividing roles of all nodes in an organization; 2) when a certain sub-block AX in the block chain account book A is associated with a certain sub-block BY in the block chain account book B, an associated block is created through an initiating node in an organization, and corresponding association consensus is submitted to the organization; 3) performing association consensus endorsement on the associated blocks; 4) through an intelligent contract, automatically modifying the association identifier of the sub-block AX and the sub-block BY into the transaction hash of the associated block in the relay account book, forming a new sub-block, adding the new sub-block to the tail of the corresponding block chain account book A and the block chain account book B, and completing the cross-chain cooperative work of the block chain account book A and the block chain account book B.
Description
Technical Field
The invention relates to a chain-crossing cooperative working method and system based on a same-block chain platform.
Background
Since the smart bit currency appeared in 2008, digital currency has been rapidly developed as a trend concept affecting the future, especially the most core block chain in the bit currency, and the most important attention of people in all circles is paid to the internet with strong technology growth and wide application prospect, three branch directions of private chain, public chain and alliance chain are derived in a short time, and the iteration of the block chain standard reaches the current 3.0 era from the initial 1.0. The block chain is applied in a large amount in various industries, and the block chain items falling to the ground are like bamboo shoots in spring after rain. At present, the main application scenarios of the blockchain include financial products represented by tokens, the incentive and encryption properties of the blockchain are fully exerted, economic circulation is realized through a consensus algorithm, the blockchain is also a main part of all blockchain products at present, but the value of the blockchain as currency is still controversial; the block chain has a plurality of successful attempts in the field of supply chains, coupling in a supply system is greatly reduced by sharing commodity information in real time, product turnover stagnation is reduced by consensus, commodities can be tracked, and transparent disclosure of information of the whole commodity chain is guaranteed; in the field of copyright protection, a block chain is successfully tried, copyright information is linked up, authorization records are clearly recorded, data cannot be tampered, and the copyright protection cost is greatly reduced; in the field of supply chain finance, a blockchain also successfully practices a plurality of supply chain finance applications through the characteristics of transparent data disclosure, strong data authenticity, low node communication cost, standard data form and the like in the authority range of the blockchain. At present, with the advent of the age of 5G and the internet of things, the blockchain is considered to have a wide range and a great role, the internet of things is a scene of online and offline mutual combination, the blockchain is one of excellent products of information data interaction, the data confidentiality characteristic and the multi-centralization characteristic of the blockchain can effectively improve the security of mass data in the age of the internet of things, and the cost is low, so that the ecological environment of the whole internet of things can be improved with assistance.
For the block chain which is the one way to do, attention needs to be paid to the problem that under the conditions of complex business application environment and data security, a link cannot go to the end between the same block chain platforms, and according to the consideration of multiple factors such as application scenes, data operation portability, enterprise management modes and the like, in an actual block chain application project, a plurality of chains often exist according to actual requirements and are mutually associated to form a block chain network. In a new generation block chain represented by Hyperhedger Fabric, the control of data authority is greatly emphasized, role nodes such as an Anchor node (Anchor), an endorsement node (Endorser), a sequencing service node (Orderer) and a bookkeeping node (Committer) are added in the Fabric hyper-book, and membership registration, identity protection, authority configuration, content confidentiality, transaction audit and the like are realized through the function coordination among different role nodes. With the help of the authority control of the layers, a complex hierarchical relationship can be formed, one block chain is a Channel (Channel), one organization (Org) can comprise a plurality of member nodes (nodes), one organization can have a plurality of channels, the organization member nodes can access the useful channels of the organization, the account access control of the layers is established through the order rule, one member Node can belong to different organizations at the same time, and therefore, one member Node can access a plurality of block chain accounts according to the corresponding authority. Other emerging blockchains often employ this similar method of rights access control, as shown in fig. 1.
However, there are still many problems in this organization structure, the same organization may have operation authority for multiple blockchain accounts, and may modify the multiple blockchain accounts according to specific operations, but there is no corresponding coordination mechanism for data exchange and interaction between chains, and how to make the multiple blockchain accounts work cooperatively is the core of the blockchain network work.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a cross-chain cooperative working method and system based on a same blockchain platform, in which multiple blockchain accounts can cooperate with each other.
In order to achieve the purpose, the invention adopts the following technical scheme: a cross-chain cooperative working method based on a same block chain platform is characterized by comprising the following steps: 1) dividing roles of each node in the organization according to a block chain network MSP; 2) when a certain sub-block AX in a block chain account book A is associated with a certain sub-block BY in a block chain account book B, an associated block is created through an initiating node in an organization, and corresponding association consensus is submitted to the organization, wherein when the block chain account book A is associated with the block chain account book B for the first time, a relay account book is created; 3) performing association consensus endorsement on the associated block, and if the association consensus endorsement is successful, adding the associated block to the tail part of the relay account book; if the association consensus endorsement fails, destroying the association block; 4) and automatically modifying the association identifier of the sub-block AX and the sub-block BY into the transaction hash of the associated block in the relay account book through an intelligent contract, forming a new sub-block, adding the new sub-block to the tail part of the corresponding block chain account book A and the block chain account book B, and finishing the cross-chain cooperative work of the block chain account book A and the block chain account book B.
Further, the specific process of the step 1) is as follows: 1.1) creating a block chain network MSP; 1.2) issuing an identity certificate to each node of an organization through a certificate certification center according to the established block chain network MSP, and dividing roles of each node in the organization.
Further, the identity certificate in step 1) includes a node identity certificate, an administrator authority certificate, and an intra-organization role certificate, and the roles of the nodes include a common node, an anchor node, an endorsement node, and a consensus node.
Further, the organization in the step 1) at least comprises common nodes and common nodes.
Further, the associated block in step 2) includes a transaction hash, an initiating node of an association action and a timestamp of the sub-block AX of the blockchain ledger a and the sub-block BY of the blockchain ledger B in the respective blockchain ledgers; the association consensus comprises a content digest and a base operation of the associated block, and the result returned by submitting the association consensus to the organization comprises a timestamp.
Further, the relay account book in step 2) is a block chain account book, and the relay account book records describe all records corresponding to cross-chain operation, including operation behaviors, operation proposing objects, operation objects and timestamps; the reading permission of the relay account book comprises all nodes in a block chain account book A and a block chain account book B; the writing authority of the relay account book comprises all nodes which are identified in an associated mode.
Further, the specific process of step 3) is as follows: 3.1) when the chain crossing operation occurs, the current operator of the associated block sends an associated consensus to all affected users of the associated block, if all affected users achieve the consensus, the endorsement success information is returned, and if all affected users do not achieve the consensus, the endorsement failure information is returned; 3.2) when the operator receives the endorsement failure information, the behavior is not approved, and the associated block is destroyed; 3.3) when the operator receives the endorsement success message, writing the detailed information of the associated block, the summary of the associated consensus and the timestamp into the relay account book, wherein the detailed information comprises the data to be linked actually and the summary information thereof.
Further, the node participating in the association consensus endorsement in step 3) is a common node or an endorsement node in the organization where the initiating node is located.
Further, the association consensus of different sub-blocks which do not have an association in the step 4) is blank, and the modification operation of the sub-blocks is completed in an additional form to form a new sub-block; the atomic block AX of the block chain account book A and the atomic block BY of the block chain account book B and the content thereof are still in the original positions, and the transaction hash is unchanged; the new sub-blocks with the associated identifications also comprise transaction hashes of the respective atomic sub-blocks besides the skip information on the relay account book.
A co-blockchain platform-based cross-chain cooperative work system is characterized by comprising: the node role division module is used for dividing roles of all nodes in the organization according to the block chain network MSP; the association block creation module is used for creating an association block through an initiation node in an organization and submitting corresponding association consensus to the organization when a certain sub-block AX in a block chain account book A is associated with a certain sub-block BY in a block chain account book B, wherein a relay account book is created when the block chain account book A is associated with the block chain account book B for the first time; the association consensus endorsement module is used for performing association consensus endorsement on the association block, and if the association consensus endorsement is successful, the association block is added to the tail part of the relay account book; if the association consensus endorsement fails, destroying the association block; and the association identifier modification module is used for automatically modifying the association identifiers of the sub-block AX and the sub-block BY into transaction hashes of the associated blocks in the relay account book through an intelligent contract to form new sub-blocks and adding the new sub-blocks to the tail of the corresponding block chain account book A or the block chain account book B.
Due to the adoption of the technical scheme, the invention has the following advantages: according to the invention, by establishing a bidirectional or unidirectional association protocol between the block chain accounts in the operation authority of the initiating node, association consensus is achieved, the relay account is recorded to be associated consensus, the safe interaction of data among a plurality of block chain accounts can be ensured, the data interaction mode in a block chain network is greatly enriched, the burden of an intelligent contract is reduced, the organization structure among nodes is reduced, the cost of data communication among the block chain accounts is reduced, the data safety is improved, and the method can be widely applied to the technical field of block chains.
Drawings
FIG. 1 is a schematic diagram of the relationship of member nodes in a blockchain organization of the prior art;
FIG. 2 is a block chain ledger reading and writing control diagram of the present invention;
FIG. 3 is a schematic diagram showing the MSP organization relationship in the present invention.
Detailed Description
The present invention is described in detail below with reference to the attached drawings. It is to be understood, however, that the drawings are provided solely for the purposes of promoting an understanding of the invention and that they are not to be construed as limiting the invention.
When an organization registers MSP (Membership Service Provider), the organization configures basic member information of the organization, namely all member nodes and basic information thereof. When a block chain account book is created, all organizations suitable for the block chain account book and authority information of the block chain account book are configured, wherein the authority information comprises submission nodes, endorsement nodes and consensus nodes in the organizations.
As shown in fig. 2, an organization is a basic unit for operating one blockchain account book, one organization may operate multiple blockchain account books, one blockchain account book may also be operated by multiple organizations at the same time, and the authority for organizing and operating the blockchain account books is specified during registration according to actual usage scenarios, including read-only data and read-write data. If the block chain account book has the association operation, a relay account book is created between the block chain account books initiating the association, the relay account book is created only once, and all association behaviors between the two block chain account books are recorded on the relay account book.
All blocks of the block chain account book comprise association identifiers for marking whether the current block is associated or not. The block chain account book has a special associated block, and the associated block comprises transaction hashes of blocks needing to be associated in the current block chain account book and transaction hashes in the corresponding relay account book.
The association modes between block chain accounts include one-way association and two-way association. Taking a block chain account book A and a block chain account book B as an example, a child node Org1-U in the Org1 sends out unidirectional association, namely, a child block AX of the block chain account book A is associated to a child block BY of the block chain account book B, an initiating node Org1-U provides an association consensus application to an organization to which the block chain account book B belongs, after the consensus passes, the associated block is added to a relay account book between the block chain account book A and the block chain account book B, the association identification of the child block AX and the transaction hash of the associated block in the relay account book are modified, a new child block is formed and added to the tail of the block chain account book A. When the originating node Org1-U issues a bi-directional association, once the association consensus passes, the associated block is appended to the relay ledger between blockchain ledger a and blockchain ledger B and the association identities of sub-block AX and sub-block BY are modified to be the transaction hash of the associated block in the relay ledger. In the whole association process, all operations of the blockchain ledger a and the blockchain ledger B are normal.
Based on the principle, the cross-chain cooperative working method based on the same-block chain platform provided by the invention comprises the following steps:
1) according to a block chain network MSP, dividing roles of each node in an organization, specifically:
1.1) create a blockchain network MSP, which is a set of encryption mechanisms and protocols used to issue and verify certificates and identities in blockchain networks.
1.2) issuing an identity certificate to each node of an organization through a certificate certification center according to the established block chain network MSP, and dividing roles of each node in the organization.
Issuing an identity certificate to each node of the organization through a certificate authentication center, generating a private key and a signature according to the identity certificate, confirming the validity of the certificate through the certificate authentication center, and dividing roles of each node in the organization according to MSP. The certificate generation mechanism used by different blockchain platforms may vary.
Certificate content: the node identity certificate is used for proving the identity of a legal node; an administrator permission certificate; a signature private key of the node; the role certificates are organized, wherein the roles of the nodes include a regular node, an anchor node, an endorsement node, and a consensus node, as shown in fig. 3.
Secondly, organizing the content: the method comprises the steps that two role nodes, namely a common node and a consensus node, are included at least, all role nodes are included at most, the operation authority of all the nodes in the organization is determined by the respective roles of the nodes, and once the roles of all the nodes in the organization are determined, the roles of the nodes can be changed only through an administrator.
One organization can correspond to a plurality of block chain accounts, but the operation authority of the organization to different block chain accounts is still defined according to the role of the organization.
2) When a certain sub-block AX in the block chain account book a is associated with a certain sub-block BY in the block chain account book B, an associated block is created through an initiating node in an organization, and a corresponding association consensus is submitted to the organization, specifically:
the associated block comprises a transaction hash of the sub-block AX and the sub-block BY in a respective blockchain account book, an initiating node of an associated action and a timestamp, the associated consensus comprises a content summary and basic operations (including reading and writing and the like) of the associated block, and a result returned BY submitting the associated consensus to an organization comprises the timestamp.
The block chain account book comprises block head information and block body information, a block of the block chain account book comprises a link descriptive identification, the block self has basic operation including reading and writing on the block chain account book to which the block belongs, and according to the authority range inside the block, the external basic operation including reading and writing of other block chain account books can be allowed and refused.
When the block chain account book a and the block chain account book B initiate association, for example, when an initiating node in an organization initiates association, finding out the sub-block AX in the block chain account book a and the sub-block BY in the block chain account book B through the initiating node, creating an associated block, and packaging the summary information of the associated block into an associated consensus. The initiating node can only create the associated block and submit the association consensus to the organization when the initiating node has the basis of operating permission to both the block chain account book A and the block chain account book B.
When the block chain account book is subjected to cross-chain operation, all original data on the original block chain account book are still stored, the transaction hash is unchanged, and the operation of other authority users is not influenced.
3) When the block chain account book A and the block chain account book B initiate association for the first time, a relay account book C is created (no relay account book exists between the two block chain account books which do not initiate association), wherein the relay account book C is the block chain account book, and the relay account book records describe all records corresponding to cross-chain operation, including operation behaviors, operation proposing objects, operation objects, timestamps and other description information. All cross-chain operations are recorded on the relay account book C, detailed information of the cross-chain operations is embodied on the association relation of the associated blocks, and all cross-chain operations of the block chain account book can be traced back through the relay account book C. The read permission of the relay account book C includes all nodes in the block chain account book a and the block chain account book B, the write permission includes all nodes subjected to the association consensus, and the write control thereof can be determined when the association consensus endorsement is obtained in the following step 4).
4) Performing association consensus endorsement on the associated block, if the association consensus endorsement is successful, writing the association consensus into a timestamp of the associated block, and adding the associated block to the tail of the relay account book and pointing to a transaction hash of the unmodified associated mark; if the association consensus endorsement fails, destroying the association block without adding to the tail part of the relay account book, specifically:
4.1) when the chain crossing operation occurs, the current operator of the associated block sends the associated consensus to all the affected users of the associated block, the endorsement success information is returned if all the affected users achieve the consensus, and the endorsement failure information is returned if all the affected users do not achieve the consensus.
4.2) when the operator receives the endorsement failure information, the behavior is not approved, the association consensus can not be sent again within a certain time range (depending on specific application scenes), and the association block is destroyed.
4.3) when the operator receives the endorsement success message, writing the detailed information of the associated block, the summary of the associated consensus and the timestamp into the relay account book C, wherein the detailed information comprises the data to be linked actually, the summary information and the like.
When the initiating node initiates the association, whether the association is unidirectional or bidirectional, the nodes participating in the association consensus endorsement are common nodes or endorsement nodes in the organization where the initiating node is located, the specific implementation can refer to different consensus algorithms, when the number of the nodes in the organization is too large, the PBFT consensus algorithm can be selected, and for simple situations, the PBFT consensus algorithm can be implemented by the election consensus algorithm.
5) And automatically modifying the association identifier of the sub-block AX and the sub-block BY into the transaction hash of the associated block in the relay account book C through an intelligent contract, forming a new sub-block, adding the new sub-block to the tail part of the corresponding block chain account book A and the block chain account book B, and finishing the cross-chain cooperative work of the block chain account book A and the block chain account book B.
The association of different sub-blocks without association is recognized as blank, and the modification operation of the blocks is completed in an additional form, so as to form a new sub-block AXX and a new sub-block BYY. The original sub-block AX and the sub-block BY and the content thereof are still in the original positions, the transaction hashes thereof are not changed, and the new sub-block AXX and the new sub-block BYY with the associated identifiers further include the transaction hashes of the original sub-block AX and the sub-block BY, respectively, in addition to the skip information on the relay book C.
Through the mode, the sub-blocks in the block chain account book A and the block chain account book B can complete mutual chain-crossing cooperative work through the relay account book C, and the content and the structure of original data are not changed. One organization associates the block chain ledger, and does not affect the operation of other organizations on the block chain ledger. Through this kind of mode, can realize the information collaborative work between a plurality of block chain accounts books, two liang of uses can effectively improve the cooperative efficiency between the block chain network.
For the complex situation of the complex block chain network, two block chain accounts can create a plurality of relay accounts according to the practical situation, and the relay accounts are also associated and mapped through the block chain. The method has strong flexibility and adaptability. The method can adapt to the cooperative processing operation under various scenes.
Based on the above method for co-blockchain-based cross-chain cooperative work, the present invention further provides a co-blockchain-based cross-chain cooperative work system, which includes: the node role division module is used for dividing roles of all nodes in the organization according to the block chain network MSP; the association block creation module is used for creating an association block through an initiation node in an organization and submitting corresponding association consensus to the organization when a certain sub-block AX in a block chain account book A is associated with a certain sub-block BY in a block chain account book B, wherein a relay account book is created when the block chain account book A is associated with the block chain account book B for the first time; the association consensus endorsement module is used for performing association consensus endorsement on the association block, and if the association consensus endorsement is successful, the association block is added to the tail part of the relay account book; if the association consensus endorsement fails, destroying the association block; and the association identifier modification module is used for automatically modifying the association identifiers of the sub-block AX and the sub-block BY into transaction hashes of the associated blocks in the relay account book through an intelligent contract to form new sub-blocks and adding the new sub-blocks to the tail of the corresponding block chain account book A or the block chain account book B.
The above embodiments are only used for illustrating the present invention, and the structure, connection mode, manufacturing process, etc. of the components may be changed, and all equivalent changes and modifications performed on the basis of the technical solution of the present invention should not be excluded from the protection scope of the present invention.
Claims (10)
1. A cross-chain cooperative working method based on a same block chain platform is characterized by comprising the following steps:
1) dividing roles of each node in the organization according to a block chain network MSP;
2) when a certain sub-block AX in a block chain account book A is associated with a certain sub-block BY in a block chain account book B, an associated block is created through an initiating node in an organization, and corresponding association consensus is submitted to the organization, wherein when the block chain account book A is associated with the block chain account book B for the first time, a relay account book is created;
3) performing association consensus endorsement on the associated block, and if the association consensus endorsement is successful, adding the associated block to the tail part of the relay account book; if the association consensus endorsement fails, destroying the association block;
4) and automatically modifying the association identifier of the sub-block AX and the sub-block BY into the transaction hash of the associated block in the relay account book through an intelligent contract, forming a new sub-block, adding the new sub-block to the tail part of the corresponding block chain account book A and the block chain account book B, and finishing the cross-chain cooperative work of the block chain account book A and the block chain account book B.
2. The method according to claim 1, wherein the specific process of step 1) is as follows:
1.1) creating a block chain network MSP;
1.2) issuing an identity certificate to each node of an organization through a certificate certification center according to the established block chain network MSP, and dividing roles of each node in the organization.
3. The co-blockchain platform-based cross-chain cooperative work method according to claim 2, wherein the identity certificate in step 1) includes a node identity certificate, an administrator authority certificate, and an intra-organization role certificate, and roles of the nodes include a common node, an anchor node, an endorsement node, and a consensus node.
4. The method according to claim 3, wherein the organization in step 1) at least comprises common nodes and common nodes.
5. The co-blockchain platform-based cross-chain cooperative work method according to claim 1, wherein the associated blocks in step 2) include transaction hashes, initiating nodes of associated behaviors and timestamps of the sub-blocks AX and BY of the blockchain ledger a and B in the respective blockchain ledgers;
the association consensus comprises a content digest and a base operation of the associated block, and the result returned by submitting the association consensus to the organization comprises a timestamp.
6. The method according to claim 1, wherein the relay ledger in step 2) is a blockchain ledger, and the relay ledger record describes all records corresponding to a cross-chain operation, including an operation behavior, an operation proposed object, an operation object, and a timestamp;
the reading permission of the relay account book comprises all nodes in a block chain account book A and a block chain account book B;
the writing authority of the relay account book comprises all nodes which are identified in an associated mode.
7. The method according to claim 1, wherein the specific process of step 3) is as follows:
3.1) when the chain crossing operation occurs, the current operator of the associated block sends an associated consensus to all affected users of the associated block, if all affected users achieve the consensus, the endorsement success information is returned, and if all affected users do not achieve the consensus, the endorsement failure information is returned;
3.2) when the operator receives the endorsement failure information, the behavior is not approved, and the associated block is destroyed;
3.3) when the operator receives the endorsement success message, writing the detailed information of the associated block, the summary of the associated consensus and the timestamp into the relay account book, wherein the detailed information comprises the data to be linked actually and the summary information thereof.
8. The co-block chain platform-based cross-chain cooperative work method according to claim 3, wherein the node participating in the associated consensus endorsement in step 3) is a common node or an endorsement node in an organization in which the originating node is located.
9. The method according to claim 1, wherein the association consensus of different sub-blocks without association in step 4) is blank, and the sub-block modification operations are all completed in an additional form to form a new sub-block; the atomic block AX of the block chain account book A and the atomic block BY of the block chain account book B and the content thereof are still in the original positions, and the transaction hash is unchanged; the new sub-blocks with the associated identifications also comprise transaction hashes of the respective atomic sub-blocks besides the skip information on the relay account book.
10. A co-blockchain platform-based cross-chain cooperative work system is characterized by comprising:
the node role division module is used for dividing roles of all nodes in the organization according to the block chain network MSP;
the association block creation module is used for creating an association block through an initiation node in an organization and submitting corresponding association consensus to the organization when a certain sub-block AX in a block chain account book A is associated with a certain sub-block BY in a block chain account book B, wherein a relay account book is created when the block chain account book A is associated with the block chain account book B for the first time;
the association consensus endorsement module is used for performing association consensus endorsement on the association block, and if the association consensus endorsement is successful, the association block is added to the tail part of the relay account book; if the association consensus endorsement fails, destroying the association block;
and the association identifier modification module is used for automatically modifying the association identifiers of the sub-block AX and the sub-block BY into transaction hashes of the associated blocks in the relay account book through an intelligent contract to form new sub-blocks and adding the new sub-blocks to the tail of the corresponding block chain account book A or the block chain account book B.
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