CN114297723A - Consensus method and system supporting calculation verification parallelization processing - Google Patents
Consensus method and system supporting calculation verification parallelization processing Download PDFInfo
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Abstract
The invention discloses a consensus method and a consensus system supporting calculation verification parallelization processing, wherein the method comprises the following steps of S1, a transaction execution phase; s2, a consensus generation phase; s3, result submission stage; the system comprises a client, a block chain endorsement node, a block chain sequencing node and a block chain accounting node, wherein the client comprises a request construction module and a result acquisition module; the block chain endorsement node comprises a simulation endorsement module and a request submission module; the block chain sequencing node comprises a transaction verification module, a consensus generation module and a result broadcasting module, and the block chain accounting node comprises a consensus result verification module and a state maintenance module; the invention provides a scheme for solving enterprise-level scene requirements for data users, reduces the uplink high failure rate caused by partial data hot update, and provides a safer and more efficient data calculation verification processing scheme for the data users and the data providers.
Description
Technical Field
The invention relates to the technical field of computer block chains and the field of distributed computation, in particular to a consensus method and a consensus system supporting computation verification parallelization processing.
Background
At present, the traditional consensus algorithm is divided into a CFT consensus algorithm and a BFT consensus algorithm, the CFT consensus algorithm does not consider the situation of existence of malicious nodes, and the BFT consensus algorithm is usually based on high-delay consensus of global nodes, so that how to endow verifiable characteristics on the basis of improving the efficiency of the consensus algorithm becomes a research hotspot, and the consensus optimization based on a block chain platform is based on the characteristics of tampering prevention and the like. The block chain is essentially a distributed account book which is commonly maintained by multiple nodes through technologies such as credible rules and the like in a peer-to-peer network environment, and has the advantages of decentralization, no tampering, traceability and the like, so that the block chain is widely applied to various application scenes at present. However, due to the problems of low throughput, high consensus delay, success rate of hot update transactions and the like in the block chain, the application of the block chain in a real scene is limited, so that a consensus method capable of supporting parallelization processing of computational verification is urgently needed, and a more convenient and reliable distributed consensus scheme is provided for data users and data providers.
Therefore, how to realize a consensus algorithm supporting the calculation verification parallelization processing with high throughput and low delay; .
Disclosure of Invention
In order to solve the defects of the prior art and realize the purpose of supporting calculation verification parallelization processing with high throughput and low delay of block chain consensus, the invention adopts the following technical scheme:
a consensus method supporting parallelization processing of computation verification comprises the following steps:
s1, the transaction execution phase includes the following steps:
s11, the client generates a block chain transaction proposal according to the requirement and sends the proposal to the block chain endorsement node;
s12, the block chain endorsement node carries out simulation endorsement on the block chain transaction proposal based on the node state;
s13, updating the local state of the node by the block chain endorsement node according to the simulation endorsement result;
s14, signing the simulation endorsement result by the block chain endorsement node;
s2, a consensus generating stage, comprising the following steps:
s21, after the block chain sequencing node receives the block chain transaction proposal result and the signature of a certain account book submitted by the block chain endorsement node, the block chain sequencing node verifies the simulation endorsement result, the signature and the endorsement strategy;
s22, the block chain sequencing node generates a transaction tree one by one according to the verified simulation endorsement result and the block chain endorsement node to which the block chain sequencing node belongs;
s23, the block chain sequencing node combines the transaction trees corresponding to the block chain endorsement nodes, packages and signs the transactions on the longest public path, generates a transaction block and links the transaction block, and prunes and discards the transactions not belonging to the path;
s24, the block chain sequencing node broadcasts the transaction block to the accounting node in the block chain system;
s3, a result submitting phase, comprising the following steps:
s31, after the block chain accounting node receives the transaction block and the signature thereof, the transaction block and the signature are verified;
s32, the block chain accounting node divides the verified transaction blocks, verifies the simulation endorsement result of each transaction, and maintains the local state and the global state of the node according to the verified simulation endorsement result;
s33, the block chain accounting node links the transaction block according to the verified simulation endorsement result, and modifies the global state of the block chain system, so as to ensure that the global state of the node is a sub-tree of the local state, and ensure the consistency of the linked data. The method can be expanded and applied to generating consensus in a distributed computing system.
Further, the blockchain endorsement node in S12 performs simulated endorsement on the blockchain transaction proposal based on the local state of the node; the block chain endorsement node in the S13 updates the local state of the node according to the simulation endorsement result; the local state of the block chain endorsement node is different from the global state in a common block chain system, and the local state of the node is maintained and updated in real time only by the node and is more time-efficient compared with the global state of the node; and the block chain accounting node in the S32 splits the verified transaction block, verifies the simulated endorsement result of each transaction, and maintains the local state of the block chain accounting node according to the verified simulated endorsement result, thereby ensuring that the respective local states of the block chain system accounting nodes are consistent periodically.
Furthermore, the simulation endorsement in S12 is a parallel simulation endorsement, the updating of the state of the node in S13 is a parallel updating, the parallelization simulation endorsement is different from the endorsement process of the original blockchain platform, the parallelization simulation endorsement is based on the local state of the endorsement node of each blockchain and not the global state of the original blockchain platform, the parallelization simulation endorsement based on the local state and the parallelization updating meet the characteristic of optimistic consensus, the scale and the number of read-write locks in the parallelization calculation process are reduced, and only a very small number of read-write locks based on key values exist, so that the parallelization calculation is more time-efficient, and the requirement of partial state thermal updating in an actual service scene is met; and combining the method of constructing a transaction tree for each endorsement node and calculating the longest common path of the transaction trees of different endorsement nodes in S22 and S23 to generate consensus, and realizing the consensus method which is high in throughput and low in delay and supports calculation verification parallelization processing.
Furthermore, each endorsement node in the S14 directly submits the signed simulated endorsement result to the block chain ordering node corresponding to the account book to which the transaction belongs according to the type of the block chain transaction proposal, the submission process is different from the endorsement process of the original block chain system, the endorsement node does not need to return the endorsement result to the client and then submit the endorsement result to the ordering node, but the endorsement node directly submits the endorsement result to the ordering node, so that the communication cost is reduced; and the endorsement node submits the endorsement result to the sequencing node corresponding to the account book to which the transaction belongs in the submission flow, so that the communication cost is saved for the sequencing node to perform consensus, and the consensus delay is reduced.
Further, maintenance, including rollback and updating, is performed on the node state in S32.
A consensus system supporting computational validation parallelization processing, comprising: the system comprises a client, a block chain endorsement node, a block chain sequencing node and a block chain accounting node, wherein the client comprises a request construction module and a result acquisition module, the block chain endorsement node comprises a simulation endorsement module and a request submission module, the block chain sequencing node comprises a transaction verification module, a consensus generation module and a result broadcasting module, and the block chain accounting node comprises a consensus result verification module and a state maintenance module;
the request construction module is used for constructing a block chain transaction request by a user according to self requirements, required computing source codes and data and sending the block chain transaction request to a block chain endorsement node;
the result acquisition module is used for acquiring the business uplink common identification result sent by the block chain accounting node;
the simulation endorsement module is used for carrying out simulation endorsement on the block chain transaction request sent by the client based on the state of the block chain node;
the request submitting module signs and submits the simulation endorsement result; and directly sending the simulation endorsement result to the block chain sequencing node corresponding to the account book to which the simulation endorsement result belongs.
The transaction verification module is used for performing signature verification on the simulation endorsement result sent by each block chain endorsement node to enable the simulation endorsement result to conform to the endorsement strategy of the client;
the consensus generation module generates a transaction tree for each verified block chain endorsement node based on the type of the account book, calculates the longest common path of the transaction tree to generate consensus, packages and signs the transactions on the common path, generates a transaction block and links the transaction block, and prunes and discards the transactions not belonging to the path;
and the result broadcasting module broadcasts the latest transaction block on the chain to the block chain accounting node.
The consensus result verification module: carrying out validity verification on the common-recognition transaction block sent by the sequencing node, and submitting the verified block to a state maintenance module;
the state maintenance module and the block chain accounting node verify the endorsement result of each transaction in the transaction block passing the validity verification one by one, chain the transaction block and maintain the global state of the block chain system.
Furthermore, the simulation endorsement module adds and maintains a local state at each blockchain endorsement node, and performs simulation endorsement on a blockchain transaction request sent by the client based on the local state of the blockchain endorsement node, wherein the local state of the blockchain endorsement node is different from a global state in a common blockchain system, and the local state of the blockchain endorsement node is maintained and updated in real time only by the node and is more time-efficient compared with the global state of the node; and the state maintenance module is used for maintaining the local state of the block chain accounting node according to the verified simulation endorsement result, so that the periodicity consistency of the local state of the block chain system accounting node is ensured.
Furthermore, the simulation endorsement module performs parallel simulation endorsement on the block chain transaction request, and performs parallel update on the state of the block chain endorsement node, the parallel simulation endorsement is different from the endorsement process of the original block chain platform, the parallel simulation endorsement is based on the local state of each block chain endorsement node but not the global state of the original block chain platform, the parallel simulation endorsement and the parallel update based on the local state conform to the characteristic of optimistic consensus, the scale and the number of read-write locks in the parallel calculation process are reduced, only a very small number of read-write locks based on key values exist, the parallel calculation is more time-efficient, and the requirement of partial state hot update in an actual service scene is met; and combining the method of constructing a transaction tree for each endorsement node and calculating the longest common path of the transaction trees of different endorsement nodes in S22 and S23 to generate consensus, and realizing the consensus method which is high in throughput and low in delay and supports calculation verification parallelization processing.
Furthermore, the request submitting module signs the analog endorsement result and directly sends the analog endorsement result to the block chain sequencing node corresponding to the account book to which the request submitting module belongs, the submitting process is different from the endorsement process of the original block chain system, the endorsement node does not need to return the endorsement result to the client and then submits the endorsement result to the sequencing node, but the endorsement node directly submits the endorsement result to the sequencing node, and communication cost is reduced; and the endorsement node submits the endorsement result to the sequencing node corresponding to the account book to which the transaction belongs in the submission flow, so that the communication cost is saved for the sequencing node to perform consensus, and the consensus delay is reduced.
Further, the result obtaining module maintains a pair of a public key and a private key, after the block chain accounting node cluster encrypts the business uplink consensus result through the public key and sends the encrypted result to the client, the result obtaining module decrypts the business uplink consensus result through the private key.
The invention has the advantages and beneficial effects that:
the invention constructs a consensus mechanism supporting parallelization processing of calculation and verification based on a distributed framework of a Hyperhedger Fabric block chain platform, realizes verifiable parallelization calculation, verification and consensus, provides a consensus scheme with high throughput, low delay and parallelization calculation and verification for a distributed system, helps a data provider to use the block chain platform to perform efficient data calculation and verification, and helps a data user to solve the problem of high uplink failure rate caused by hot update of partial data. The HyperLegend Fabric used in the method can provide characteristics of non-falsification, traceability and the like for the method, supports a consensus method of calculation verification parallelization processing, provides a scheme for solving enterprise-level scene requirements for data users, and provides a safer and more efficient data calculation verification processing scheme for the data users and data providers.
Drawings
FIG. 1 is a flow chart of the present invention.
Figure 2 is a flow diagram of the transaction execution phase of the present invention.
FIG. 3 is a flow chart of the consensus generation phase of the present invention.
FIG. 4 is a flow chart of the result submission phase of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
A consensus system supporting parallelization processing of computation verification comprises a client, a block chain endorsement node, a block chain sequencing node and a block chain accounting node.
(1) The client can be realized by expanding the common blockchain client, and the client includes the following functions besides the common blockchain client:
and the request construction module is used for constructing a transaction request by a user according to the self requirement, the required computing source code and the data and sending the transaction request to the block chain endorsement node.
And the result acquisition module is used for encrypting and decrypting the business uplink consensus result by maintaining a public key and a private key of a client user. Meanwhile, after the block chain accounting node cluster sends the encrypted business uplink consensus result to the client, the private key needs to be used for decrypting the business uplink consensus result.
(2) The block chain endorsement node can be realized by expanding and modifying the existing block chain platform, the block chain for deploying and expanding can be other block chain platforms such as an Ether Fang, a Hyperridge Fabric and the like, and the entity comprises:
and simulating an endorsement module, wherein the endorsement module can be realized based on the basic functions of the existing block chain platform, but the functions of the endorsement module need to be modified. And adding and maintaining a local state at each endorsement node, and performing simulated endorsement on the transaction sent by the client based on the local state.
And a request submitting module, wherein the module can be realized based on the basic functions of the existing blockchain platform, but needs to modify the functions. And after the endorsement simulation node completes the endorsement simulation, directly sending the simulation endorsement result to the block chain sequencing node corresponding to the account book to which the simulation endorsement result belongs.
(3) The block chain sequencing node can be realized by expanding and modifying the existing block chain platform, the block chain for deploying and expanding can be other block chain platforms such as an Ether shop, Hyperridge Fabric and the like, and the entity comprises:
and the transaction verification module is used for performing signature verification on the simulation endorsement result sent by each endorsement node by the sequencing node and ensuring that the endorsement result conforms to the endorsement strategy of the client.
And the consensus generating module is used for generating a transaction tree for each endorsement node by the sequencing node based on the book type, generating consensus by calculating the longest common path of the transaction tree, and packaging, signing, generating blocks and chaining the transactions on the common path.
And the result broadcasting module is used for broadcasting the latest block on the chain to the block chain accounting node by the sequencing node.
(4) The block chain accounting node can be realized by expanding and modifying the existing block chain platform, the block chain for deploying and expanding can be other block chain platforms such as an Ether shop, Hyperridge Fabric and the like, and the entity comprises:
a consensus result verification module: and the accounting node verifies the legality of the common identification blocks sent by the sequencing node and submits the verified blocks to the state maintenance module.
A state maintenance module: the accounting node verifies the transactions in the block passing the validity verification one by one, verifies and maintains the local state of the node for the successful transactions, chains the block and maintains the global state of the block chain system after the local state is maintained.
The relationship and flow control between the system instances are illustrated in fig. 1, and are divided into a transaction execution stage, a consensus generation stage, and a result submission stage, where the embodiment uses a hyper-hedge Fabric as a block chain platform for implementation, and is implemented based on a Fabric flow.
After initialization, the transaction execution phase flow is shown in fig. 2, which relates to a request construction module, a simulation endorsement module, and a request submission module, and the following describes this phase in detail with reference to the accompanying drawings and embodiments:
(1) the client generates a block chain transaction proposal according to the requirement and sends the block chain transaction proposal to the endorsement node of the block chain system;
(2) the endorsement node carries out parallel simulation endorsement on the block chain transaction proposal based on the local state of the node;
(3) the endorsement node updates the local state of the node in parallel according to the simulation endorsement result;
(4) the endorsement node simulates an endorsement result to carry out signature and directly submits the endorsement result to a corresponding block chain system sequencing node according to the type of the transaction proposal;
after the blockchain endorsement node sends a packet to the ordered node cluster, the flow of the consensus generation phase is shown in fig. 3, and relates to the transaction verification module, the consensus generation module, and the result broadcasting module, which will be described in detail below with reference to the following drawings and embodiments:
(1) after receiving the transaction proposal result and the signature of a certain account book submitted by the endorsement node, the sequencing node verifies the result, the signature and the endorsement strategy;
(2) the sequencing node generates a transaction tree one by one according to the verified simulation endorsement result and the endorsement node to which the sequencing node belongs;
(3) and the sequencing node combines the transaction trees corresponding to the endorsement nodes, and takes the transaction on the longest public path to package, sign, generate a transaction block and chain the transaction block. Pruning and discarding the affairs which do not belong to the path;
(4) the sequencing node broadcasts the transaction block to an accounting node in the blockchain system.
After the sequencing node cluster sends the result to the block chain accounting node, the flow of the result submitting phase is shown in fig. 4, and relates to a consensus result verification module and a state maintenance module, which are described in detail below with reference to the accompanying drawings and embodiments:
(1) after receiving the transaction block and the signature thereof, the accounting node verifies the transaction block and the signature;
(2) the accounting node splits the verified transaction blocks, verifies the endorsement result of each transaction, maintains, rolls back and updates the local state of the accounting node according to the endorsement result passing verification, and ensures that the respective local states of the accounting nodes of the block chain system are consistent in periodicity;
(3) and the bookkeeping node carries out chaining according to the endorsement result passing the verification, modifies the global state of the blockchain system, ensures that the global state of the node is a subtree of the local state, and ensures the consistency of the chained data.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A consensus method for supporting parallelization processing of computation verification is characterized by comprising the following steps:
s1, the transaction execution phase includes the following steps:
s11, the client generates a block chain transaction proposal and sends the proposal to the block chain endorsement node;
s12, the block chain endorsement node carries out simulation endorsement on the block chain transaction proposal based on the node state;
s13, updating the state of the node by the block chain endorsement node according to the simulation endorsement result;
s14, signing the simulation endorsement result by the block chain endorsement node;
s2, a consensus generating stage, comprising the following steps:
s21, verifying the simulation endorsement result, the signature and the endorsement strategy by the block chain sequencing node;
s22, the block chain sequencing node generates transaction trees one by one according to the verified simulation endorsement result and the block chain endorsement node to which the block chain sequencing node belongs;
s23, the block chain sequencing node combines the transaction trees corresponding to the block chain endorsement nodes, packages and signs the transactions on the longest public path, generates a transaction block and links the transaction block, and prunes and discards the transactions not belonging to the path;
s24, the block chain ordering node broadcasts the transaction block to the block chain accounting node;
s3, a result submitting phase, comprising the following steps:
s31, after the block chain accounting node receives the transaction block and the signature thereof, the transaction block and the signature are verified;
s32, the block chain accounting node divides the verified transaction blocks, verifies the simulation endorsement result of each transaction, and maintains the node state according to the verified simulation endorsement result;
and S33, the block chain accounting node chains the transaction blocks according to the verified simulation endorsement result and modifies the global state of the block chain.
2. The consensus method of claim 1, wherein the blockchain endorsement node in S12 performs a simulation endorsement on the blockchain transaction proposal based on a local state of the node; the block chain endorsement node in the S13 updates the local state of the node according to the simulation endorsement result; and the block chain accounting node in the S32 splits the verified transaction block, verifies the simulated endorsement result of each transaction, and maintains the local state of the block chain accounting node according to the verified simulated endorsement result.
3. The consensus method of claim 2, wherein the simulation endorsement in S12 is a parallel simulation endorsement, and the updating the state of the node in S13 is a parallel update.
4. The method according to claim 1, wherein each endorsement node in S14 submits the signed simulated endorsement result directly to a corresponding blockchain ordering node according to a type of the blockchain transaction proposal.
5. The method according to claim 1, wherein the node state is maintained in S32, including rolling back and updating.
6. A consensus system supporting computational validation parallelization processing, comprising: the system comprises a client, a block chain endorsement node, a block chain sequencing node and a block chain accounting node, and is characterized in that the client comprises a request construction module and a result acquisition module, the block chain endorsement node comprises a simulation endorsement module and a request submission module, the block chain sequencing node comprises a transaction verification module, a consensus generation module and a result broadcasting module, and the block chain accounting node comprises a consensus result verification module and a state maintenance module;
the request construction module constructs a block chain transaction request and sends the block chain transaction request to the block chain endorsement node;
the result acquisition module is used for acquiring the business uplink common identification result sent by the block chain accounting node;
the simulation endorsement module is used for carrying out simulation endorsement on the block chain transaction request sent by the client based on the state of the block chain node;
the request submitting module signs and submits the simulation endorsement result;
the transaction verification module is used for performing signature verification on the simulation endorsement result sent by the block chain endorsement node to enable the simulation endorsement result to conform to the endorsement strategy;
the consensus generation module generates a transaction tree for the endorsement nodes of the block chains passing the verification based on the type of the account book, calculates the longest common path of the transaction tree to generate consensus, packs and signs the transactions on the common path, generates transaction blocks and links the transactions, and prunes and discards the transactions not belonging to the path;
the result broadcasting module is used for broadcasting the transaction blocks on the chain to the block chain accounting node;
the consensus result verification module: performing validity verification on the transaction block;
and the state maintenance module is used for verifying the endorsement results of the transactions in the transaction block which passes the validity verification one by one, chaining the transaction block and maintaining the global state of the block chain system.
7. The consensus system supporting parallelization of computation validation according to claim 6, wherein the simulation endorsement module adds and maintains a local state at each blockchain endorsement node, and performs simulation endorsement on a blockchain transaction request sent by a client based on the local state of the blockchain endorsement node; and the state maintenance module is used for maintaining the local state and the global state of the block chain accounting node according to the verified simulation endorsement result.
8. The consensus system supporting computation verification parallelization according to claim 7, wherein the simulation endorsement module performs parallel simulation endorsement on blockchain transaction requests and updates local states of blockchain endorsement nodes in parallel.
9. The consensus system supporting parallelization of computation verification according to claim 6, wherein the request submission module signs the simulation endorsement result and directly sends the simulation endorsement result to its corresponding blockchain ordering node.
10. The system according to claim 6, wherein the result obtaining module maintains a pair of a public key and a private key, and after the blockchain accounting node cluster encrypts the ul consensus result through the public key and sends the encrypted result to the client, the result obtaining module decrypts the ul consensus result through the private key.
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| CN115001719A (en) * | 2022-08-04 | 2022-09-02 | 树根格致科技(湖南)有限公司 | Private data processing system, method, device, computer equipment and storage medium |
| CN115186035A (en) * | 2022-09-13 | 2022-10-14 | 腾讯科技（深圳）有限公司 | Block processing method, related system, storage medium and server |
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| CN115001719A (en) * | 2022-08-04 | 2022-09-02 | 树根格致科技(湖南)有限公司 | Private data processing system, method, device, computer equipment and storage medium |
| CN115186035A (en) * | 2022-09-13 | 2022-10-14 | 腾讯科技（深圳）有限公司 | Block processing method, related system, storage medium and server |
| CN115186035B (en) * | 2022-09-13 | 2022-11-22 | 腾讯科技（深圳）有限公司 | Block processing method, related system, storage medium and server |
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