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Block chain decision point selection method and device, electronic equipment and storage medium

A decision-making point and blockchain technology, applied in the information field, can solve problems such as network security threats, and achieve the effect of improving security and preventing network security threats

Active Publication Date: 2021-08-10
BEIJING UNIV OF POSTS & TELECOMM
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  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the embodiment of the present invention is to provide a method, device, electronic device and storage medium for selecting a blockchain decision point to solve the problem of malicious execution of illegal operations by some nodes in the blockchain and the threat of network security

Method used

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  • Block chain decision point selection method and device, electronic equipment and storage medium
  • Block chain decision point selection method and device, electronic equipment and storage medium
  • Block chain decision point selection method and device, electronic equipment and storage medium

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example

[0104] see Figure 5 , Figure 5 An example diagram of the selection method of the blockchain decision point provided by the embodiment of this application, including:

[0105] 1. Determine the number T of participating nodes and the security factor n;

[0106] 2. Determine the security evaluation model and the corresponding revenue function;

[0107] 3. Predict the possibility of all violations from the perspective of violation nodes;

[0108] 4. According to the preset formula, calculate the illegal node whose profit is greater than 0 under the current prediction;

[0109] 5. Select the undetermined number of decision nodes according to the safety threshold;

[0110] 6. When the pending number of decision-making nodes is greater than the number of participating nodes, all participating nodes will act as decision-making nodes and perform the voting consensus process;

[0111] 7. When the target number of decision-making nodes is less than the number of participating node...

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Abstract

The embodiment of the invention provides a block chain decision point selection method and device, electronic equipment and a storage medium, and is applied to the technical field of information, and the method comprises the steps: obtaining a plurality of prediction violation strategies of a target block chain and violation probabilities corresponding to the prediction violation strategies through a preset security evaluation model; counting the number of nodes corresponding to the rule violation prediction strategies with rule violation probabilities greater than a preset safety threshold, and obtaining the predicted number of rule violation nodes; according to a preset safety factor and the predicted number of the illegal nodes, calculating through a first preset formula to obtain a first predicted number of decision nodes; according to a preset safety threshold value, calculating the minimum value of the number of the decision nodes meeting the preset safety threshold value through a second preset formula to obtain a second predicted number of the decision nodes; and obtaining a target number of decision nodes, and selecting the target number of decision nodes from the non-violation nodes. According to the invention, threats to network security caused by malicious execution of illegal operation by part of nodes in the block chain can be prevented, and the security of the network in the block chain is improved.

Description

technical field [0001] The present invention relates to the field of information technology, in particular to a method, device, electronic equipment and storage medium for selecting a block chain decision point. Background technique [0002] At present, as a technical tool for decentralization and privacy protection, the blockchain can realize system autonomy by using the consensus mechanism and privacy protection capabilities of the blockchain, solve problems such as reliability, security, privacy, and trust in the network, and improve network security and privacy. service efficiency. [0003] However, when implementing the consensus mechanism of the blockchain, some nodes may maliciously perform illegal operations, which will change the voting selection, thereby affecting the final consensus result and posing a threat to the security of the network. Contents of the invention [0004] The purpose of the embodiments of the present invention is to provide a method, device,...

Claims

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Application Information

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IPC IPC(8): G06F21/64G06F21/62G06Q10/04G06Q10/06G06K9/62
CPCG06F21/64G06F21/6245G06Q10/04G06Q10/0639G06F18/214
Inventor 徐瑨陈希陶小峰
Owner BEIJING UNIV OF POSTS & TELECOMM