CN112564896A - Multi-subject decision confirmation method, system and storage medium for variable consensus blockchains - Google Patents
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Abstract
The invention discloses a multi-subject decision confirming method, a system and a storage medium of a variable consensus block chain, comprising the following steps: setting decision acceptance probability as a basic parameter of a consensus strategy; configuring the same consensus strategy by each node, and establishing a block chain private chain; any node in the private chain initiates a decision request to wait for the confirmation of ore excavation; detecting the authentication of the decision request, and if the authentication is passed, packaging the block and adding the block in a chain for broadcasting; each node receives the block and broadcasts an agreed decision to the adjacent nodes; and each node counts the received broadcast decision, and synchronizes and executes the broadcast decision when the decision receiving probability is met. The invention realizes the variable consensus block chain structure by using the block chain private chain, so that the main node realizes the positive confirmation of whether the decision is determined by other nodes or not by checking the state of the decision transaction in the chain by using the block chain consensus technology.
Description
Technical Field
The present invention relates to a multi-subject decision-making confirmation method, system and storage medium for a variable consensus blockchain, and belongs to the technical field of blockchains.
Background
In many scenarios, electronic devices need to perform some task together in a coordinated manner. When the main device issues a decision command to other devices, it needs to ensure correct receiving and judgment of the main device decision by each cooperative device. However, since the devices in the distributed environment cannot be completely connected directly, the devices may be damaged and disconnected during the task execution period. How to ensure the multi-node consensus confirmation is a key issue in the cooperative task of multiple devices.
The block chain uses a common recognition mechanism based on POW, a common recognition mechanism based on POS, a Byzantine algorithm, a practical Byzantine algorithm and the like as bottom-layer algorithms, and each node is allowed to confirm synchronous data after receiving the synchronous data of other nodes, wherein the number of the synchronous data is larger than a certain synchronous threshold value, so that the consistency of the data of all nodes is ensured.
Most of the existing technical applications related to block chain consensus directly apply the consensus mechanism, and the underlying consensus mechanism cannot be reasonably modified aiming at different application environments to meet the consensus requirement under special conditions; secondly, in the prior art, only a block chain consensus mechanism is considered to ensure the consistency of block data, and the reasonable application of the consensus mechanism in decision confirmation in a collaborative environment is not considered; finally, in a multi-node scene, multiple confirmations are needed among nodes to realize decision consensus, and great pressure is brought to system communication.
Therefore, one technical problem that needs to be solved by those skilled in the art is: how to creatively provide an effective multi-subject decision confirmation method of a variable consensus block chain, overcome the defects of the prior art and meet more requirements in practical application.
Disclosure of Invention
An object of an embodiment of the present application is to provide a multi-subject decision confirmation method, a system and a storage medium for a variable consensus block chain, which provide a multi-subject decision confirmation scheme for a variable consensus block chain, and implement a variable consensus block chain structure by using a block chain private chain, so that a master node implements positive confirmation on whether its decision is obtained by other nodes by checking a state of its decision transaction in the chain by using a block chain consensus technology.
In order to solve the above technical problem, the embodiment of the present application is implemented as follows:
according to a first aspect of the embodiments of the present application, a multi-subject decision confirmation method for a variable consensus blockchain is provided, the method including: setting decision acceptance probability as a basic parameter of a consensus strategy;
configuring the same consensus strategy by each node, and establishing a block chain private chain;
any node in the private chain initiates a decision request to wait for the confirmation of ore excavation;
detecting the authentication of the decision request, and if the authentication is passed, packaging the block and adding the block in a chain for broadcasting;
each node receives the block and broadcasts an agreed decision to the adjacent nodes;
and each node counts the received broadcast decision, and synchronizes and executes the broadcast decision when the decision receiving probability is met.
In another embodiment of the multi-agent decision making confirmation method based on the variable consensus block chain of the present invention, the detecting the authentication of the decision making request is specifically performed by detecting the originating node signature and the transaction single validity of the decision making request transaction by each mining node.
In another embodiment of the multi-body decision confirmation method based on the variable consensus blockchain of the present invention, the counting the received broadcast decisions by each node further comprises setting a timer.
In another embodiment of the multi-body decision confirmation method based on the variable consensus block chain of the present invention, the set decision acceptance probability as a basic parameter of the consensus strategy is determined according to a preset reliability tolerance of the system.
In another embodiment of the multi-subject decision making validation method based on the variable consensus block chain of the present invention, the nodes receiving the blocks and broadcasting the agreed decisions to neighboring nodes comprises making decisions.
In another embodiment of the multi-agent decision making confirmation system based on the variable consensus block chain of the present invention, the detecting the authentication of the decision making request, and if the authentication is passed, the mining nodes are packed into blocks and added to the chain, and broadcast in the node network, and the decision making request that is not passed is not broadcast.
Based on another aspect of the embodiments of the present invention, a multi-subject decision confirmation system of a variable consensus blockchain is disclosed, the system comprising:
the setting module is used for setting the decision acceptance probability as a basic parameter of the consensus strategy;
the processing module is used for configuring the same consensus strategy for each node and establishing a block chain private chain;
the functional module is used for initiating a decision request by any node in the private chain and waiting for the confirmation of ore excavation;
the detection module is used for detecting the authentication of the decision request, and if the authentication is passed, the block is packaged into a block and added into the chain for broadcasting;
the operation module is used for receiving the blocks by each node and broadcasting the agreed decision to the adjacent nodes;
and the execution module is used for counting the received broadcast decisions by each node, and synchronizing and executing the broadcast decisions when the decision receiving probability is met.
In accordance with another aspect of the embodiments of the present invention, a computer storage medium is disclosed, in which computer program instructions are stored, and when executed by a processor, the computer program instructions are configured to perform:
setting decision acceptance probability as a basic parameter of a consensus strategy;
configuring the same consensus strategy by each node, and establishing a block chain private chain;
any node in the private chain initiates a decision request to wait for the confirmation of ore excavation;
detecting the authentication of the decision request, and if the authentication is passed, packaging the block and adding the block in a chain for broadcasting;
each node receives the block and broadcasts an agreed decision to the adjacent nodes;
and each node counts the received broadcast decision, and synchronizes and executes the broadcast decision when the decision receiving probability is met.
The multi-subject decision confirmation method for the variable consensus block chain can realize the flexible and controllable consensus effect of the block chain consensus algorithm, and meet the requirement of a user on setting the approval probability of all equipment nodes obtained by decision; the equipment is used as a block chain node, the decision consensus is completed in a transaction confirmation mode, the decision-making consensus approved by a specified number of nodes can be quickly executed, meanwhile, the nodes which do not agree with the decision can transmit the negative attitude of the decision through the non-broadcast decision block, and finally, the quick consensus of a round of decision is completed.
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Fig. 1 illustrates a schematic structural diagram of a multi-subject decision validation method for a variable consensus blockchain provided in accordance with some embodiments of the present application;
fig. 2 illustrates a schematic diagram of another embodiment of a multi-subject decision validation method for a variable consensus blockchain provided in accordance with some embodiments of the present application.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Fig. 1 is a schematic flow chart illustrating a multi-subject decision confirmation method for a variable consensus blockchain according to some embodiments of the present disclosure, which is described in detail with reference to fig. 1, and includes:
s1, setting decision acceptance probability as a basic parameter of the consensus strategy;
in a specific implementation, the consensus configuration process includes: a given system may provide
Then the consensus acceptance policy is set to: each node receives. Total number of devices
The decision confirmation message of (2) is considered to ensure that at least nR nodes express approval for the decision after the decision confirmation in the whole system.
S2, configuring the same consensus strategy for each node, and establishing a block chain private chain;
the private chain grouping process comprises the following steps: and loading the same consensus configuration on each equipment node, generating a public and private key pair of each equipment node, and performing node connection by operating the block chain client to complete the group chain operation.
S3, initiating a decision request by any node in the private chain, and waiting for confirmation of ore excavation;
the decision making process comprises: master node NmInitiating a sub-decision Request to trade TxrThe pattern is submitted to a transaction pool of the blockchain and a timer is set to wait for confirmation by the miners. Wherein the transaction TxrIn the form of
S4, detecting the authentication of the decision request, and packing the decision request into blocks and adding the blocks in the chain for broadcasting if the decision request passes the authentication;
the decision checking process comprises: miner inspection transaction TxrAnd pack Tx by miningrInto the decision request block and added to the chain. Miner broadcast decision request block Br。
S5, each node receives the block and broadcasts an agreed decision to the adjacent nodes;
the node broadcasting process comprises the following steps: each device node NiDecision request block B for minersrThe decision content is reviewed and a decision is made as to whether to execute the decision. If node NiIn the affirmative, the decision will be broadcast to other device nodes; if node NiNot affirming the decision, then the decision will not be broadcast; when node NiReceiving the data from other equipment nodes greater than
On positive broadcast of the total number of devices, the state chain of the device is updated to add the decision and the execution is carried out
And S6, each node counts the received broadcast decision, and synchronizes and executes the broadcast decision when the decision receiving probability is met.
The decision confirmation process includes: master node NmIf greater than the threshold is received before the timer ends
Confirming that the decision is approved and executing the decision when the total equipment number is broadcast positively; if a sufficient number of broadcasts are not received before the timer is over, the decision is invalid, and a new decision is initiated again.
The scheme of the application is mainly used for realizing the quick consensus of decision instructions in practical application. The distributed decision sharing is supported strongly through a block chain distributed communication architecture, and meanwhile, the problems that resource consumption is huge, dependence on certain nodes is high and the like and the method is not suitable for the operating environment of an unmanned cluster are solved in consideration of the fact that an information consensus mechanism adopted in a traditional block chain is a workload certificate or a rights and interests certificate, and a Byzantine fault-tolerant algorithm is introduced to simplify a consensus process; meanwhile, the adaptation of the Byzantine fault-tolerant algorithm is continuously improved, consensus judgment rules can be set, and decision consensus in the system is better achieved. In order to ensure the reliability of communication, signature and abstract are used for guarantee in each decision sharing process.
For ease of understanding, reference may be made to the schematic diagram given in fig. 2. A blockchain of variable byzantine consensus algorithm. Is characterized in that: the user can determine the unreliable upper limit and consensus algorithm setting of the system based on the ratio of the trusted device expecting to receive a positive reply.
Let the number of reliable devices in the system be R and the number of unreliable devices be U. Suppose that a user wishes to make certain decisions certain nR confirmations of reliable devices in the system, so that the system can unify the opinions of the decision. The following basic preconditions can be obtained:
a. in the case where U unreliable devices cannot make comments, the results cannot be affected, so there may also be a result when the total number of confirmations obtained Y < R;
b. in the least ideal case, nR positive (1-n) R negative (the unreliable node can manipulate the result) in the reliable device is obtained
Thus we can get
Thereby obtaining
And is
Therefore, the variable consensus algorithm can be used for solving the problem that the total equipment number is larger than that of the reliable equipment
Then the total number of devices will be obtained at each decision
A positive decision is received.
From the above derivation we can get if the system can provide
By setting the total number of devices accepted per node
The decision confirmation message of (2) can ensure that at least nR nodes express approval for the decision after the decision confirmation in the whole system.
The master device decides consensus on the blockchain. Is characterized in that: the user makes a decision consensus on the variable Byzantine consensus algorithm blockchain.
Assuming that the device runs on a block chain of the variable occupancy family consensus algorithm with a consensus positive rate n, the decision process of the master device is as follows, and comprises the following processes:
a. master node NmInitiating a sub-decision Request to trade TxrThe pattern is submitted to a transaction pool of the blockchain and a timer is set to wait for confirmation by the miners. Wherein the transaction TxrIn the form of
b. Miner inspection transaction TxrAnd pack Tx by miningrInto the decision request block and added to the chain.
c. MinerBroadcast decision request block Br；
d. Each device node NiDecision request block B for minersrThe decision content is reviewed and a decision is made as to whether to execute the decision. If node NiIn the affirmative, the decision will be broadcast to other device nodes; if node NiNot affirming the decision, then the decision will not be broadcast; when node NiReceiving the data from other equipment nodes greater than
And when the total equipment number is broadcast positively, updating the state chain of the self device to add the decision and executing.
e. Master node NmIf greater than the threshold is received before the timer ends
Confirming that the decision is approved and executing the decision when the total equipment number is broadcast positively; if a sufficient number of broadcasts are not received before the timer is over, the decision is invalid, a new decision is initiated again, and the process a is entered.
The embodiment of the invention provides a multi-subject decision confirmation scheme based on a variable Byzantine block chain, the variable Byzantine block chain provided by the scheme can allow a user to set a specific node data confirmation scheme according to the requirement of a system manager before the multi-subject is added into the block chain to form a private chain, and system decision consensus judgment corresponding to the requirement is provided by adjusting the counting number of each node for receiving decision confirmation of other nodes. We consider the embodiment as implementing decision making in a cluster of unmanned boats.
The reliability of the unmanned ship cluster is the ratio of the number of devices which are deducted to be damaged and maliciously controlled to the number of clusters. Assuming cluster N reliability is ε, then order
Obtaining the range of n, setting n and calculating to obtain
By modifying the configuration file so that each node receives more than n number of broadcasts from other nodes regarding decisionsiAnd then adding the decision into an execution list of the self decision.
After configuration is complete, each unmanned boat device in one embodiment will be ganged through a private chain. At this time, there are N nodes in the private chain, representing each unmanned boat ViAnd node VmAnd the other nodes are voting nodes for decision deployment.
In one embodiment, unmanned boat node VmDetermining a decision S based on data from other nodesm0After signing, decision S and signature are carried out
Put into trade list Txm0In, broadcast transaction sheet Txm0Setting a timer according to the system configuration requirement;
in one embodiment, the mineworker verifies the transaction Txm0And pack Tx by miningm0To decision request block Bm0Broadcasting to surrounding nodes;
in one embodiment, node ViBlock B of received decision requestm0And carrying out decision judgment and setting a timer according to the system configuration requirement. If the decision is positive, then the decision block will be broadcast to other unmanned boat nodes; if node ViNot affirming the decision, then the decision will not be broadcast;
in one embodiment, node V is started before the timer expiresiReceiving the data from other equipment nodes greater than
Upon positive broadcast of the individual device, the state chain itself will be updated to add the decision Sm0And executing;
in one embodiment, drone node VmIf it is connected before the timer is overReceive greater than
When the decision is broadcast positively, the decision is confirmed to be approved, and the decision is executed; if a sufficient number of broadcasts are not received before the timer is over, the decision is invalid, and a new decision is initiated again.
Through the derivation of the variable byzantine blockchain, the decision device can quickly perform the next decision execution once a correct decision is loaded on the blockchain, which indicates that the decision is already paid for approval by unmanned ship devices larger than nR.
Compared with other schemes, the scheme realizes compatibility with an unreliable system, and the stored consistency can be ensured in each node by the decision which is already voted for passing, so that the consistency of decision execution is ensured.
Some embodiments of the present application provide a multi-subject decision validation system for a variable consensus blockchain, comprising:
the setting module is used for setting the decision acceptance probability as a basic parameter of the consensus strategy;
the processing module is used for configuring the same consensus strategy for each node and establishing a block chain private chain;
the functional module is used for initiating a decision request by any node in the private chain and waiting for the confirmation of ore excavation;
the detection module is used for detecting the authentication of the decision request, and if the authentication is passed, the block is packaged into a block and added into the chain for broadcasting;
the operation module is used for receiving the blocks by each node and broadcasting the agreed decision to the adjacent nodes;
and the execution module is used for counting the received broadcast decisions by each node, and synchronizing and executing the broadcast decisions when the decision receiving probability is met.
According to an aspect of the present application, the present embodiment discloses a computer storage medium having computer program instructions stored therein, which when executed by a processor, are configured to perform: setting decision acceptance probability as a basic parameter of a consensus strategy; configuring the same consensus strategy by each node, and establishing a block chain private chain;
any node in the private chain initiates a decision request to wait for the confirmation of ore excavation; detecting the authentication of the decision request, and if the authentication is passed, packaging the block and adding the block in a chain for broadcasting; each node receives the block and broadcasts an agreed decision to the adjacent nodes; and each node counts the received broadcast decision, and synchronizes and executes the broadcast decision when the decision receiving probability is met.
In the specific implementation, control structure information such as address space layout in each section, in-process control flow diagrams of each function, corresponding intermediate language expression forms, process call diagrams and the like is calculated for a preset target program to form a control structure view; based on the calculated control structure view, the in-process control flow graph corresponding to the root function node of the process call graph is subjected to arrival fixed value analysis on an intermediate language representation level. And for the function call statements in the process, iteratively applying arrival fixed value analysis to the in-process control flow graph corresponding to the target function. Therefore, the arrival constant value state corresponding to each variable at each program point in the target program is calculated; based on the calculated control structure view, statically hooking calling positions of read and recv functions related to external input to realize introduction of stain variables; and then performing taint propagation analysis based on the calculated arrival constant value state, thereby calculating the taint state corresponding to the program variable at each program point in the target program.
It will be evident to those skilled in the art that the embodiments of the present invention are not limited to the details of the foregoing illustrative embodiments, and that the embodiments of the present invention are capable of being embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the embodiments being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. Several units, modules or means recited in the system, apparatus or terminal claims may also be implemented by one and the same unit, module or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting, and although the embodiments of the present invention are described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the embodiments of the present invention without departing from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A method for multi-body decision validation of a variable consensus blockchain, the method comprising:
setting decision acceptance probability as a basic parameter of a consensus strategy;
configuring the same consensus strategy by each node, and establishing a block chain private chain;
any node in the private chain initiates a decision request to wait for the confirmation of ore excavation;
detecting the authentication of the decision request, and if the authentication is passed, packaging the block and adding the block in a chain for broadcasting;
each node receives the block and broadcasts an agreed decision to the adjacent nodes;
and each node counts the received broadcast decision, and synchronizes and executes the broadcast decision when the decision receiving probability is met.
2. The method of claim 1, wherein the authentication of the detection decision request is specifically performed by detecting an originating node signature and a transaction order validity of a decision request transaction by each mining node.
3. The method of claim 2, wherein counting the received broadcast decisions by each node further comprises setting a timer.
4. The method as claimed in claim 1, wherein the decision acceptance probability is determined as a basic parameter of the consensus strategy according to a reliability tolerance preset by a system.
5. The method of claim 1, wherein each node receives a block and broadcasting an agreed decision to neighboring nodes comprises making a decision.
6. The method according to claim 1, wherein the method detects the authentication of the decision-making request, and when the authentication is passed, the mining nodes are packed into blocks and added to the chain, and broadcast in the node network, and the decision-making request that is not passed is not broadcast.
7. A multi-subject decision validation system for a variable consensus blockchain, the system comprising:
the setting module is used for setting the decision acceptance probability as a basic parameter of the consensus strategy;
the processing module is used for configuring the same consensus strategy for each node and establishing a block chain private chain;
the functional module is used for initiating a decision request by any node in the private chain and waiting for the confirmation of ore excavation;
the detection module is used for detecting the authentication of the decision request, and if the authentication is passed, the block is packaged into a block and added into the chain for broadcasting;
the operation module is used for receiving the blocks by each node and broadcasting the agreed decision to the adjacent nodes;
and the execution module is used for counting the received broadcast decisions by each node, and synchronizing and executing the broadcast decisions when the decision receiving probability is met.
8. A computer storage medium having computer program instructions stored therein for execution by a processor to perform a multi-subject decision validation method as claimed in any one of claims 1 to 6.
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