CN110555764B - Method and system for block chain consistency under decentralized environment - Google Patents
Method and system for block chain consistency under decentralized environment Download PDFInfo
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Abstract
The invention discloses a method for achieving consistency of a block chain in a decentralized environment and a corresponding system, wherein a two-step consensus method is adopted, namely, transaction and achievement consensus are separated, time-consuming steps are separated from calculation transaction services, namely, the steps of doing business after doing business are carried out, and as the consistency criterion is confirmed, the transaction can be directly carried out, so that the calculation speed is improved.
Description
Technical Field
The invention belongs to the field of block chains, and particularly relates to a method and a system for achieving block chain consistency in a decentralized environment.
Background
With the increasing awareness of the blockchain technology, in the existing blockchain network, when agreement is achieved in a decentralized environment, people process transactions together and then determine who is the right by using an algorithm (for example, a workload certification algorithm takes the fastest random number to be found) because the step of determining who is the right needs to achieve consensus in the whole network, and the step needs to be confirmed after data is passed through the whole network, which results in long confirmation time for processing the transactions before, and meanwhile, in order to prove that the workload capacity of the people is the largest, a large amount of computing resources need to be wasted, and the existing confirmation consistency is to use the method, which causes the problems that computing resources are greatly wasted and transaction speed is slow.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and a system for achieving consistency of a block link in a decentralized environment, which have high computation speed and save computation resources.
In order to solve the technical problems, the technical solution of the invention is as follows:
a method for block link coherency in a decentralized environment, comprising the steps of:
(1) Starting a block chain node, and scanning the whole block chain network by the node;
(2) Selecting a credible node from the scanned block link points by adopting an algorithm;
(3) Sending the selected trusted node of the node to a block chain network, and receiving the selected trusted nodes of other nodes;
(4) Counting the most selected nodes in the whole network, and confirming the correctness of the most selected nodes in the whole network by utilizing an algorithm;
(5) Sending the transaction to the maximum node, and returning transaction information after the maximum node processes the transaction;
(6) The most nodes broadcast the transactions processed in the time period into all block chain networks after being typed into blocks;
(7) Other nodes of the blockchain network accept the block and store the transaction.
Further, the algorithm adopted in the step (2) is a DPOP algorithm.
Further, the algorithm adopted in the step (4) is a PBFT algorithm.
Further, after the step (6), other nodes of the blockchain network also check the block.
Further, the inspection method comprises the following steps: checking whether the block header information is the block created by the most nodes, then checking whether the transaction in the block is in error, and if the transaction is in error, discarding the block.
A system for block chain agreement in a decentralized environment, comprising:
a process manager: the process manager is connected with the block chain network and starts each node in the block chain network;
network sniffer: the network sniffer is connected with the block chain network and scans the information of each node in the block chain network;
a network selector: the network selector is connected with the network sniffer, and a trusted node is selected from the block link points scanned by the network sniffer by adopting an algorithm;
a data transmitter: the data transmitter is connected with the data statistics device, the network selector and the block forging device and is responsible for receiving data from other systems, and the data transmitter is connected with the block chain network and transmits the received data to the block chain network;
a data statistics machine: the data statistics device is connected with the block chain network, and counts the most selected nodes in the block chain network, and the correctness of the result is confirmed by using an algorithm;
a transaction processor: the transaction processor is connected with a block chain network, and transaction information is returned to the block forging device after transaction data is processed;
a block forging device: the block forging device is connected with the transaction processor, receives transaction information of the transaction processor, inputs transactions processed in the time period into the block, and then sends the block to the data transmitter.
A database processor: the database processor is connected with the block chain network, receives the block transaction result and stores the transaction, and the process manager, the network sniffer, the network selector, the data transmitter, the data statistics device, the transaction processor, the block forging device and the database processor are sequentially connected.
Further, the system also comprises a data checker.
Further, the data checker is in charge of checking correctness of the transaction block between the data transmitter and the blockchain network.
Further, the blockchain network comprises a data receiver, and the data receiver receives data sent by the data sender.
Further, the network selector selects a trusted node by adopting an algorithm through a DPOP algorithm, and the data statistics device confirms the correctness of the result by adopting a PBFT algorithm.
The invention has the beneficial effects that:
1. the invention separates the transaction and the achievement consensus through a two-step consensus method, and the transaction is carried out after the achievement consensus, so that the transaction does not need to take effect after the achievement consensus of the whole network, thereby greatly improving the calculation speed of the transaction and saving the transaction time;
2. the invention selects reliable nodes through DPOP algorithm, determines the correctness of the nodes through PBFT algorithm, replaces the prior method of using workload to prove to reach consensus, greatly saves calculation and resources, and the nodes in the block chain network do not need to waste calculation resources for proving the workload capacity of the nodes.
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FIG. 1 is a flow chart of a corresponding method of the present invention;
FIG. 2 is a block diagram of the architecture of a corresponding system of the present invention;
fig. 3 is a block diagram of the structure of a system data checker according to the present invention.
The following drawings: 100-a process manager; 200-a network sniffer; 300-a network selector; 400-a data transmitter;
500-a data statistics machine; 600-a transaction processor; 700-block forger; 800-a database processor; 900-blockchain network; 401-data checker; 901-data receiver.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. It should be noted that the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the existing block chain network, when agreement is reached under a decentralized environment, people commonly process transactions firstly and then determine who the transaction is based on a certain algorithm (for example, a workload proving algorithm is based on finding a random number most quickly), and the step needs to be confirmed after data passes through the whole network.
The invention discloses a method for achieving consistency of a block chain in a decentralized environment by improving a consensus method, which comprises the following steps of:
(1) Starting the blockchain nodes, wherein the nodes in the blockchain network 900 scan the whole blockchain network 900 to obtain node information in all the blockchain networks 900;
(2) The method mainly comprises a workload proof mechanism POW (best effort) and a working capacity proof mechanism POW (best effort) which is blocked by the node with the strongest computing power, so that the cost for doing malicious work can be effectively improved; the difficulty strategy ensures that the probability that any plurality of regions on the regional chain are rewritten simultaneously by technical means is reduced to a minimum by increasing the technical difficulty of the region chain, but the mechanism wastes a lot of computing resources; the second is a rights and interests proving mechanism POS, namely competition blocking is performed in the nodes with the maximum rights and interests, so that the waste of computing resources can be avoided, the malicious cost is directly related to the rights and interests, the malicious probability is reduced to a certain extent by means of business, but the rights and interests of the mechanism are concentrated to the top layer, so that small rights and interests are marginalized, blocking rights and interests are lost, and the participation degree is not high; the third is a Byzantine fault-tolerant mechanism PBFT, that is, all nodes in the network participate in voting, and the voting is less than (N-1)/3 nodes, so that the voting is consistent and blocked in reverse time. The DPOP algorithm used by the invention is a commission participation right certification mechanism, and the mechanism consensus mechanism not only effectively inherits the service attribute of the POS, the high-efficiency attribute of the POS and the whole member participation attribute of the PBFT, but also can effectively avoid the problem of low cost caused by the operation of unauthorized nodes and high rights groups, and simultaneously provides a foundation for the participation consensus of the D-Wallet terminal. In the DPOP consensus mechanism, nodes participating in voting need to provide not only rights and interests certification but also participation degree certification, wherein the THER-Node obtains participation degree with high-reliability network performance, the S-Node obtains participation degree by providing terminal service, activities of each participating Node on the network can increase participation degree to a certain degree, the increase of the participation degree is based on obtaining service signature of the served Node, and the 'self-participation' is based on submitted effective easy certificate, so that participants with different dimensionalities can participate in consensus and management of the network, and defects caused by a single-dimensionality consensus mechanism are effectively avoided.
(3) Sending the selected trusted node of the node to the blockchain network 900, and receiving the selected trusted nodes of other nodes;
(4) Counting the most selected nodes in the whole network, and confirming the correctness of the most selected nodes in the whole network by utilizing an algorithm, wherein the preferred algorithm is a PBFT algorithm which is most commonly used for determining the uniqueness of data correctness of the nodes in the whole network of the block chain network 900, and the algorithm can be utilized to achieve consensus and determine the uniqueness of correctness of a final result;
(5) After determining that the selected nodes are credible nodes for the most times, naming the nodes as the nodes at the most, finishing the step of achieving consensus and consistency of the whole network, then sending transaction data to the nodes at the most, and returning the transaction information after the nodes at the most process the transaction by using computing power;
(6) The most nodes broadcast the transactions processed in the time period into all block chain networks 900 after being typed into blocks;
(7) Other nodes of the blockchain network 900 accept the block and store the transaction, which is completed, and then proceed to the next transaction.
To verify the correctness of the transaction, it is preferred that after step (6), other nodes of the blockchain network 900 also verify the blockchain by: firstly, checking whether the block header information is a block created by most nodes, if not, indicating that the transaction is illegal or tampered, and abandoning the transaction, if so, carrying out the next step;
the second step is to check whether the transaction in the block is miscalculated, if so, the block is discarded.
The invention also discloses a system for achieving consistency of the block chain in the decentralized environment;
as shown in fig. 2 and 3, the method includes:
the process manager 100: the process manager 100 is connected to the blockchain network 900, and starts each node in the blockchain network 900, where the process manager 100 is a starting point of the entire system, and when processing transaction data, each node in the blockchain network 900 is started through the process manager 100;
network sniffer 200: the network sniffer 200 is connected to the blockchain network 900, scans information of each node in the blockchain network 900, and here the network sniffer 200 mainly records the node information for the network selector 300 to select;
the network selector 300: the network selector 300 is connected with the network sniffer 200, and an algorithm is adopted to select a trusted node from the block link points scanned by the network sniffer 200, wherein the preferred algorithm is a DPOP algorithm, the algorithm effectively inherits the service attribute of POS, the efficient attribute of POS and the whole member participation attribute of PBFT, and can also effectively avoid the problems of no-interest nodes and high-interest group operation cost and low cost, and meanwhile, a foundation is provided for the participation consensus of the D-Wallt terminal. The selected trusted node is only selected from a certain node and cannot represent consensus and consistency of the whole network, so that the selected trusted node can be determined through subsequent statistics of the data statistics device 500;
the data transmitter 400: the data transmitter 400 is connected to the data statistics device 500, the network selector 300 and the block forging device 700, and is responsible for receiving data from other systems, the data transmitter 400 is connected to the block chain network 900, and transmits the received data to the block chain network 900, the data transmitter 400 is a core of the whole system and is connected to a plurality of modules, firstly, the data transmitter 400 is connected to the network selector 300, and is responsible for issuing trusted nodes selected by the network selector 300 to the block chain network 900 for aggregation, the data transmitter 400 is connected to the data statistics device 500, and is responsible for transmitting the nodes which are most trusted after statistics to the block chain network 900, and the data transmitter 400 is further connected to the block forging device 700, is responsible for transmitting forged blocks to each node in the block chain network 900, and finally transmits the forged blocks to the database processor 800 for storage after being received by the data receiver 901 in the block chain network 900;
the data statistics machine 500: the data statistics device 500 is connected with the block chain network 900, and counts the node with the most trusted node selected in the block chain network 900, and the correctness of the result is confirmed by using an algorithm, wherein the preferred algorithm is a PBFT algorithm, the PBFT algorithm is a common algorithm of the whole network company, and the consistency can be well determined by using the algorithm;
the transaction processor 600: the transaction processor 600 is connected with the block chain network 900, and returns transaction information to the block forging device 700 after processing transaction data;
the block forger 700: the block forging unit 700 is connected to the transaction processor 600, receives transaction information from the transaction processor 600, and sends transactions processed in the time period into a block, and then to the data transmitter 400.
The database processor 800: the database processor 800 is connected to the blockchain network 900, receives the results of the blockchain transaction and stores the transaction.
The process manager, the network sniffer, the network selector, the data transmitter, the data statistics device, the transaction processor, the block forging device and the database processor are sequentially connected. The specific connection and use method is as follows:
the process manager 100 is connected with the blockchain network 900, each node in the blockchain network 900 is started, then the network olfactor 200 acquires and records node information through the blockchain network 900, the network selector 300 is connected with the network olfactor and selects a credible node from the network olfactor, then, data are sent to the data transmitter 400, the data transmitter is connected with the network selector 300, the data transmitter has the function of sending the credible node information to the blockchain network 900, then, the data counter 500 connected with the blockchain network 900 counts the credible nodes, the most credible nodes are selected by utilizing a PBFT algorithm, the transaction processor 600 is connected with the blockchain network 900, the transaction processor 600 processes transactions, the transactions are sent to the blockchain forger 700 connected with the transaction processor 600 after being processed, the transactions are input into the blockchain, and finally, the data processor 800 is connected with the blockchain network 900, stores transaction data and completes the whole transaction.
In order to verify the correctness of the transaction, the system further comprises a data verifier 401, wherein the data verifier 401 is responsible for verifying the correctness of the transaction block between the data transmitter 400 and the block chain network 900, and the specific verification method is as follows: firstly, checking whether the block header information is a block created by most nodes, if not, indicating that the transaction is illegal or tampered, and abandoning the transaction, if so, checking whether the transaction in the block is calculated to be wrong, and if so, abandoning the block.
Preferably, the blockchain network 900 includes a data receiver 901, and the data receiver 901 receives data transmitted by the data transmitter 400. The data receiver 901 is the key in the blockchain network 900, and the data transmitter 400 transmits data through the data receiver 901, and the data receiver 901 finally transmits the processed blocks to the database processor 800.
The invention separates the transaction and the achievement consensus by a two-step consensus method, separates the time-consuming step from the calculation of the transaction service, and can achieve the low speed of the consensus, but the service processing speed can be high, namely, the trade amount is firstly carried out and then the block is made, and because the consistency criterion is confirmed, the subsequent transaction processing can not wait for the synchronization of other nodes to be confirmed, thereby greatly improving the service processing speed.
The above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention, so that the changes and modifications made by the claims and the specification of the present invention should fall within the scope of the present invention.
Claims (5)
1. A method for block link coherency in a decentralized environment, comprising the steps of:
(1) Starting a block chain node, and scanning the whole block chain network by the node;
(2) Selecting a credible node from the scanned block chain link points by adopting an algorithm;
(3) Sending the selected trusted node of the node to a block chain network, and receiving the selected trusted nodes of other nodes;
(4) Counting the most selected nodes in the whole network, and confirming the correctness of the most selected nodes in the whole network by utilizing an algorithm;
(5) Sending the transaction to the most nodes, and returning transaction information after the most nodes process the transaction;
(6) The most nodes broadcast the transactions processed in the time period into all block chain networks after being typed into blocks;
(7) Other nodes of the blockchain network receive the block and store the transaction processed by the most nodes in the time period;
in the DPOP algorithm, nodes participating in voting need to provide not only the rights and interests certification but also the participation certification so as to provide high-reliability network performance to acquire participation, provide terminal service to acquire participation, increase participation of each participating node in network activities according to the acquired service signature of the served node, and rely on submitted effective transaction certificates for self participation;
the algorithm adopted in the step (4) is a PBFT algorithm.
2. The method of claim 1, wherein after step (6), the other nodes of the blockchain network check the block.
3. The method of claim 2, wherein the checking comprises: checking whether the block header information is the block created by the most nodes, then checking whether the transaction in the block is in error calculation, and if the transaction is in error calculation, discarding the block.
4. A system for block chain reaching consistency in a decentralized environment, comprising:
a process manager: the process manager is connected with the block chain network and starts each node in the block chain network;
network sniffer: the network sniffer is connected with the block chain network and scans the information of each node in the block chain network;
a network selector: the network selector is connected with the network sniffer, and trusted nodes are selected from the block link points scanned by the network sniffer by adopting an algorithm;
a data transmitter: the data transmitter is connected with the data statistics device, the network selector and the block forging device and is responsible for receiving data from other systems, and the data transmitter is connected with the block chain network and transmits the received data to the block chain network;
a data statistics machine: the data statistics device is connected with the block chain network, and is used for counting the selected most node in the block chain network and confirming the correctness of the selected most node by using an algorithm;
a transaction processor: the transaction processor is connected with a block chain network, and transaction information is returned to the block forging device after transaction data is processed;
a block forging device: the block forging device is connected with the transaction processor, receives transaction information of the transaction processor, inputs transactions processed in the time period into a block, and then sends the block to the data transmitter;
a database processor: the database processor is connected with the block chain network, receives the block and stores the transaction processed in the time period;
the process manager, the network sniffer, the network selector, the data transmitter, the data statistics device, the transaction processor, the block forging device and the database processor are sequentially connected;
the system also comprises a data checker, which is arranged between the data transmitter and the blockchain network and is responsible for checking the correctness of the transaction block;
the method comprises the steps that the network selector selects a credible node to adopt an algorithm through a DPOP algorithm, the data statistics device confirms that the algorithm adopted by the correctness of the most selected nodes is a PBFT algorithm, the DPOP algorithm is a delegated participation degree interest proving mechanism, in the DPOP algorithm, nodes participating in voting need to provide not only interest proving but also participation degree proving so as to provide high-reliability network performance to obtain participation degrees and provide terminal service to obtain the participation degrees, the participation degrees of each participating node can be increased through activities on the network, the increase of the participation degrees is based on the acquisition of a service signature of the served node, and the self participation is based on a submitted effective transaction certificate.
5. The system according to claim 4, wherein the blockchain network comprises a data receiver that receives data transmitted from a data transmitter.
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