CN111464633B - Consensus method and system for transaction information of block chain - Google Patents
Consensus method and system for transaction information of block chain Download PDFInfo
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- CN111464633B CN111464633B CN202010245612.2A CN202010245612A CN111464633B CN 111464633 B CN111464633 B CN 111464633B CN 202010245612 A CN202010245612 A CN 202010245612A CN 111464633 B CN111464633 B CN 111464633B
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- H—ELECTRICITY
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
Abstract
The invention discloses a consensus method and a consensus system for transaction information of a block chain, wherein when a transaction occurs, a target service consensus strategy is determined according to a transaction type; sending transaction information corresponding to the transaction to all nodes corresponding to a target service consensus strategy, and verifying the transaction information by the nodes to obtain a service consensus result; sending the service consensus result to a transaction initiator corresponding to the transaction so as to complete the service consensus; performing data consensus on the transaction through a blockchain consensus protocol; responding to the transaction after each node of the block chain receives the data consensus, and acquiring a target service consensus strategy through a transaction type; and verifying the consensus result of each node based on the target service consensus strategy, and if the consensus result passes the verification, executing the transaction so that the transaction is added to the block chain. The invention realizes double-layer consensus based on service consensus and data consensus, realizes effective consensus on block chain transaction information, and ensures the fair purpose of consensus.
Description
Technical Field
The present invention relates to the field of blockchain technologies, and in particular, to a method and a system for consensus of transaction information for blockchains.
Background
The block chain technology is a distributed account book which is constructed based on decentralized distributed protocols, consensus algorithms, asymmetric key signatures, hash and other technologies and can safely store digital information assets, and has the characteristics of incapability of counterfeiting and tampering information, openness and transparency and the like. For most blockchain networks that currently exist, all transactions are publicly transparent, as on a public blockchain. The initiator of the transaction has great control right and free right; in combination with the actual business scenario, a transaction is initiated to a final transaction, and generally, a plurality of organizations or individuals participate in the transaction, so that the transaction can be carried out only by multi-party authorization, and the participation proportion is not fair and equal. Therefore, when each node of the blockchain participates in the transaction, the consensus of the transaction information is difficult to realize.
Disclosure of Invention
In view of the above problems, the present invention provides a method and a system for consensus of transaction information of a blockchain, which achieve effective consensus of the blockchain transaction information and ensure fair consensus.
In order to achieve the purpose, the invention provides the following technical scheme:
a consensus method for transaction information for blockchains, the method comprising:
when a transaction occurs, determining a target service consensus strategy according to the transaction type;
sending the transaction information corresponding to the transaction to all nodes corresponding to the target service consensus strategy, so that all nodes verify the transaction information to obtain a service consensus result;
sending the business consensus result to a transaction initiator corresponding to the transaction, so that the transaction initiator submits the transaction based on the business consensus result to complete business consensus;
performing data consensus on the transaction through a blockchain consensus protocol;
responding to the transaction after each node of the block chain receives the data consensus, and acquiring a target service consensus strategy through the transaction type;
and verifying the consensus result of each node based on the target service consensus strategy, and if the consensus result passes the verification, executing the transaction so that the transaction is added to the block chain.
Optionally, the method further comprises:
and generating a business consensus strategy matched with the transaction type, wherein the business consensus strategy is information generated according to the transaction type, the participation node information and the strategy constraint of the node participation business consensus.
Optionally, the method further comprises:
and acquiring a service rule, so that all the nodes verify the transaction information according to the service rule to obtain a service consensus result.
Optionally, the method further comprises:
and verifying the consensus result of each node based on the target service consensus strategy, and if the consensus result is not verified, adding the consensus result to the block chain.
Optionally, the verifying the consensus result of each node based on the target service consensus policy includes:
acquiring a preset verification function, wherein the preset verification function represents a function of the relationship among the transaction information, the service consensus result of each node and the service consensus strategy of the node;
and verifying the consensus result of each node through the preset verification function to obtain a verification result.
A consensus system for blockchain transaction information, the system comprising:
the strategy determining unit is used for determining a target service consensus strategy according to the transaction type when a transaction occurs;
the first sending unit is used for sending the transaction information corresponding to the transaction to all nodes corresponding to the target service consensus strategy, so that all nodes verify the transaction information to obtain a service consensus result;
a second sending unit, configured to send the service consensus result to a transaction initiator corresponding to the transaction, so that the transaction initiator submits the transaction based on the service consensus result, and service consensus is completed;
the first consensus unit is used for carrying out data consensus on the transaction through a block chain consensus protocol;
a policy obtaining unit, configured to obtain a target service consensus policy according to the transaction type in response to a transaction that is performed after each node of the block chain receives the data consensus;
and the second consensus unit is used for verifying the consensus result of each node based on the target service consensus strategy, and if the consensus result passes the verification, executing the transaction so that the transaction is added to the block chain.
Optionally, the system further comprises:
and the strategy generating unit is used for generating a business consensus strategy matched with the transaction type, wherein the business consensus strategy is information generated according to the transaction type, the information of the participating nodes and the strategy constraint of the node participating in the business consensus.
Optionally, the system further comprises:
and the rule acquisition unit is used for acquiring a service rule, so that all the nodes verify the transaction information according to the service rule to obtain a service consensus result.
Optionally, the system further comprises:
and the verification subunit is used for verifying the consensus result of each node based on the target service consensus strategy, and if the consensus result is not verified, adding the consensus result to the block chain.
Optionally, the second consensus unit is specifically configured to:
acquiring a preset verification function, wherein the preset verification function represents a function of the relationship among the transaction information, the service consensus result of each node and the service consensus strategy of the node;
and verifying the consensus result of each node through the preset verification function to obtain a verification result.
Compared with the prior art, the invention provides a consensus method and system for transaction information of a block chain, wherein the consensus method comprises the following steps: when a transaction occurs, determining a target service consensus strategy according to the transaction type; sending transaction information corresponding to the transaction to all nodes corresponding to the target service consensus strategy, so that all nodes verify the transaction information to obtain a service consensus result; sending the service consensus result to a transaction initiator corresponding to the transaction, so that the transaction initiator submits the transaction based on the service consensus result to complete service consensus; performing data consensus on the transaction through a blockchain consensus protocol; responding to the transaction after each node of the block chain receives the data consensus, and acquiring a target service consensus strategy through the transaction type; and verifying the consensus result of each node based on the target service consensus strategy, and if the consensus result passes the verification, executing the transaction so that the transaction is added to the block chain. The invention realizes double-layer consensus based on service consensus and data consensus, realizes effective consensus on block chain transaction information, and ensures the fair purpose of consensus.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic flowchart of a method for consensus of transaction information of a blockchain according to an embodiment of the present invention;
fig. 2 is a schematic processing flow diagram of service consensus and data consensus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a consensus system for transaction information of a blockchain according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first" and "second," and the like in the description and claims of the present invention and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not set forth for a listed step or element but may include steps or elements not listed.
In an embodiment of the present invention, a consensus method for transaction information of a blockchain is provided, and referring to fig. 1, the method may include the following steps:
and S101, when a transaction occurs, determining a target service consensus strategy according to the transaction type.
The transaction information consensus method in the embodiment of the invention can be used for a block chain of alliances, and is essentially a double-layer consensus mechanism combining service consensus and data consensus. The block chain of the alliance is a block chain which is booked by a plurality of preselected nodes specified in a certain organization or a group, and each block is generated by all the preselected nodes participating in decision together. The business consensus is a specific business transaction which is participated in by multiple parties, and during the transaction process, according to the respective weight proportion of the multiple parties, the business consensus can achieve a consistency consensus on whether the transaction can be continued. The data consensus, that is, the blockchain is collectively called consensus, which is performed only for the transaction data to ensure the consistency of the transaction data received by each node. Such as data consensus based on consensus algorithms like PBFT, POW, etc.
In the embodiment of the application, a business consensus strategy matched with the transaction types needs to be generated. I.e. the business consensus strategy P of the transaction type T is established by the business participants T . The service consensus strategy is information generated according to the transaction type, the information of the participating nodes and the strategy constraint of the node participating in the service consensus. That is, where PT = { T, N, p }, T is a transaction type, N is a participating node set, and p is a policy constraint for node participation in traffic consensus. The constraint strategy comprises who the business participants are, how to vote, and the business consensus result of the transaction is obtained by calculating the voting result after the participants vote. The calculation mode of the voting result of the participant can be flexible and various, the voting proportion of the participant can be defined, the calculation can be carried out according to the proportion, and one of the vote rejections can also be used as long as all parties participating in the business of the constraint strategy agree.
When a transaction initiator creates a transaction, a business consensus strategy P of the transaction is obtained according to the transaction type T T . When a transaction initiator creates a transaction T, acquiring a transaction business consensus strategy PT according to a transaction type T; where T = { T, D }, T being transaction type, D being transaction data.
S102, sending the transaction information corresponding to the transaction to all nodes corresponding to the target service consensus strategy, so that all nodes verify the transaction information to obtain a service consensus result.
Specifically, the transaction t is sent to all nodes N included in the traffic consensus policy PT. And after receiving the service consensus request, the node Ni verifies the transaction according to the service rule and submits a service consensus result Si.
S103, the business consensus result is sent to a transaction initiator corresponding to the transaction, so that the transaction initiator submits the transaction based on the business consensus result to complete the business consensus.
And the transaction initiator collects the node service consensus result S and submits the transaction t' to complete the service consensus. Wherein T' = { T, D, S }, S = { S1, …, si } is the result of the consensus of all service nodes.
And S104, performing data consensus on the transaction through a blockchain consensus protocol.
S105, responding to the transaction after the data consensus is received by each node of the block chain, and acquiring a target service consensus strategy according to the transaction type;
s106, verifying the consensus result of each node based on the target service consensus strategy, and if the consensus result passes the verification, executing the transaction so that the transaction is added to the block chain.
After the service consensus is completed, data consensus is required. The transaction t' carries out data consensus through a block chain consensus protocol; after each node receives the transaction T' after data consensus, a business consensus strategy P is obtained through the transaction type T T . And verifying the consensus result of each participating node in the following way:
R P ＝f(D,S,p)
wherein Rp is a service consensus result, f is a verification function, D is transaction data, S is a service consensus result of each node, and p is a service consensus strategy. If the business result passes, the transaction t' is executed.
The transaction t' is executed as follows:
R t ＝f t (T,D)
wherein f is t The transaction execution function is a general transaction processing function, and the details of execution of the function may be different for different transaction types. And after the transaction is executed, linking the transaction result R and confirming the transaction result. R = { R in embodiments of the invention p ,R t }。
On the basis of the above embodiment, the method further comprises:
and acquiring a service rule, so that all the nodes verify the transaction information according to the service rule to obtain a service consensus result.
And verifying the consensus result of each node based on the target service consensus strategy, and if the consensus result is not verified, adding the consensus result to the block chain.
Correspondingly, the verifying the consensus result of each node based on the target service consensus strategy includes:
acquiring a preset verification function, wherein the preset verification function represents a function of the relationship among the transaction information, the service consensus result of each node and the service consensus strategy of the node; and verifying the consensus result of each node through the preset verification function to obtain a verification result. For details, refer to the description of the above embodiments.
The consensus method for the transaction information of the block chain in the embodiment of the invention realizes a double-layer consensus mechanism based on the combination of service consensus and data consensus. Through service consensus, the service authorization whether the transaction can be achieved by multiple nodes and mechanisms is realized, so that the service requirement that the transaction can be executed only by multi-party authorization in an actual service scene is met. Through data consensus, the final consistency of the execution and the result of the business consensus data and the transaction data in the distributed account book is realized.
By formulating service consensus strategies with different proportions and different transaction types, the problems that different transactions adopt different service achievement strategies, different participants adopt different authorization proportions and the like in a transaction scene can be solved. The purposes of flexibility, operability and controllability are realized.
Referring to fig. 2, a schematic diagram of a processing flow of service consensus and data consensus according to an embodiment of the present invention is shown.
The service consensus comprises the following steps:
a service participant specifies a service consensus strategy of a transaction type;
when a transaction initiator creates a transaction, acquiring a business consensus strategy of the transaction according to the transaction type;
sending the transaction to all nodes contained in the service consensus strategy;
after receiving the service consensus request, the node verifies the transaction according to the service rule and submits a service consensus result;
the transaction initiator collects the node service consensus result and submits the transaction;
and completing service consensus.
Data consensus:
the transaction carries out data consensus through a block chain consensus protocol;
after receiving the transaction after data consensus, each node acquires a service consensus strategy through the transaction type;
and verifying the consensus results of all the participating nodes, if the results pass the verification, executing the transaction, linking the transaction results, and confirming the transaction results to finish the data consensus.
Referring to fig. 3, in an embodiment of the present invention, there is further provided a consensus system for transaction information of a blockchain, where the consensus system includes:
the strategy determining unit 10 is used for determining a target service consensus strategy according to the transaction type when a transaction occurs;
a first sending unit 20, configured to send the transaction information corresponding to the transaction to all nodes corresponding to the target service consensus policy, so that all nodes verify the transaction information to obtain a service consensus result;
a second sending unit 30, configured to send the service consensus result to a transaction initiator corresponding to the transaction, so that the transaction initiator submits the transaction based on the service consensus result, and service consensus is completed;
a first consensus unit 40, configured to perform data consensus on the transaction through a blockchain consensus protocol;
a policy obtaining unit 50, configured to, in response to a transaction that is performed after the data consensus is received by each node of the block chain, obtain a target service consensus policy according to the transaction type;
and a second consensus unit 60, configured to verify a consensus result of each node based on the target service consensus policy, and if the result passes the verification, execute the transaction, so that the transaction is added to the block chain.
On the basis of the above embodiment, the system further includes:
and the strategy generating unit is used for generating a business consensus strategy matched with the transaction type, wherein the business consensus strategy is information generated according to the transaction type, the information of the participating nodes and the strategy constraint of the node participating in the business consensus.
On the basis of the above embodiment, the system further includes:
and the rule obtaining unit is used for obtaining a service rule, so that all the nodes verify the transaction information according to the service rule to obtain a service consensus result.
On the basis of the above embodiment, the system further includes:
and the verification subunit is used for verifying the consensus result of each node based on the target service consensus strategy, and if the consensus result is not verified, adding the consensus result to the block chain.
On the basis of the foregoing embodiment, the second consensus unit is specifically configured to:
acquiring a preset verification function, wherein the preset verification function represents a function of the relationship among the transaction information, the service consensus result of each node and the service consensus strategy of the node;
and verifying the consensus result of each node through the preset verification function to obtain a verification result.
The invention provides a consensus system for transaction information of a block chain, which is used for determining a target service consensus strategy according to a transaction type when a transaction occurs; sending transaction information corresponding to the transaction to all nodes corresponding to the target service consensus strategy, so that all nodes verify the transaction information to obtain a service consensus result; sending the service consensus result to a transaction initiator corresponding to the transaction, so that the transaction initiator submits the transaction based on the service consensus result to complete service consensus; performing data consensus on the transaction through a blockchain consensus protocol; responding to the transaction after each node of the block chain receives the data consensus, and acquiring a target service consensus strategy through a transaction type; and verifying the consensus result of each node based on the target service consensus strategy, and if the consensus result passes the verification, executing the transaction so that the transaction is added to the block chain. The invention realizes double-layer consensus based on service consensus and data consensus, realizes effective consensus on block chain transaction information, and ensures the fair purpose of consensus.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A method for consensus of transaction information for blockchains, the method comprising:
when a transaction occurs, determining a target service consensus strategy according to the transaction type;
sending the transaction information corresponding to the transaction to all nodes corresponding to the target service consensus strategy, so that all nodes verify the transaction information to obtain a service consensus result;
sending the business consensus result to a transaction initiator corresponding to the transaction, so that the transaction initiator submits the transaction based on the business consensus result to complete business consensus;
performing data consensus on the transaction through a blockchain consensus protocol;
responding to the transaction after each node of the block chain receives the data consensus, and acquiring a target service consensus strategy through the transaction type;
verifying the consensus result of each node based on the target service consensus strategy, and if the consensus result passes the verification, executing the transaction so that the transaction is added to the block chain;
the verifying the consensus result of each node based on the target service consensus strategy comprises:
acquiring a preset verification function, wherein the preset verification function represents a function of the relationship among the transaction information, the service consensus result of each node and the service consensus strategy of the node;
and verifying the consensus result of each node through the preset verification function to obtain a verification result.
2. The method of claim 1, further comprising:
and generating a business consensus strategy matched with the transaction type, wherein the business consensus strategy is information generated according to the transaction type, the information of the participating nodes and the strategy constraint of the node participating in the business consensus.
3. The method of claim 1, further comprising:
and acquiring a service rule, so that all the nodes verify the transaction information according to the service rule to obtain a service consensus result.
4. The method of claim 1, further comprising:
and verifying the consensus result of each node based on the target service consensus strategy, and if the consensus result is not verified, adding the consensus result to the block chain.
5. A consensus system for blockchain transaction information, the system comprising:
the strategy determining unit is used for determining a target service consensus strategy according to the transaction type when a transaction occurs;
the first sending unit is used for sending the transaction information corresponding to the transaction to all nodes corresponding to the target service consensus strategy, so that all nodes verify the transaction information to obtain a service consensus result;
a second sending unit, configured to send the service consensus result to a transaction initiator corresponding to the transaction, so that the transaction initiator submits the transaction based on the service consensus result, and service consensus is completed;
the first consensus unit is used for carrying out data consensus on the transaction through a block chain consensus protocol;
a policy obtaining unit, configured to obtain a target service consensus policy according to the transaction type in response to a transaction that is performed after each node of the block chain receives the data consensus;
a second consensus unit, configured to verify a consensus result of each node based on the target service consensus policy, and if the result passes the verification, execute the transaction, so that the transaction is added to the block chain;
the second consensus unit is specifically configured to:
acquiring a preset verification function, wherein the preset verification function represents a function of the relationship among the transaction information, the service consensus result of each node and the service consensus strategy of the node;
and verifying the consensus result of each node through the preset verification function to obtain a verification result.
6. The system of claim 5, further comprising:
and the strategy generating unit is used for generating a business consensus strategy matched with the transaction type, wherein the business consensus strategy is information generated according to the transaction type, the information of the participating nodes and the strategy constraint of the node participating in the business consensus.
7. The system of claim 5, further comprising:
and the rule obtaining unit is used for obtaining a service rule, so that all the nodes verify the transaction information according to the service rule to obtain a service consensus result.
8. The system of claim 5, further comprising:
and the verification subunit is used for verifying the consensus result of each node based on the target service consensus strategy, and if the consensus result is not verified, adding the consensus result to the block chain.
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