Trust-Based Delegation Consensus for Blockchain Scalability
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Solution Overview
Problem
Existing blockchain systems face challenges in improving scalability while maintaining security and decentralization, particularly in high-throughput environments like Industrial Internet of Things (IIoT) networks.
Innovation Solution
An apparatus and method for managing trust-based delegation consensus in a blockchain network, which uses a neural network to determine a delegation rate and create a local trust opinion matrix to select trusted nodes for consensus, thereby optimizing transaction processing speed and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of nodes participating in consensus is increased to improve security, then security is improved, but transaction processing speed (TPS) decreases
Solution Approach 1:
The patent segments the node population into two categories: delegated nodes that actively participate in consensus and non-delegated nodes that do not. This segmentation allows the system to maintain security through the coordinated action of a subset of trusted nodes while improving transaction processing speed by reducing the total number of participants in the consensus mechanism.
Solution Approach 2:
The patent introduces a delegation mechanism where nodes can delegate their voting rights to other nodes. This intermediary delegation structure allows the system to maintain security through distributed trust while improving efficiency by not requiring all nodes to participate directly in consensus operations.
2Productivity
If the number of delegated nodes is reduced to improve transaction processing speed, then scalability is improved, but the risk of malicious nodes increases
Solution Approach 1:
The patent implements a feedback mechanism where nodes continuously evaluate the behavior and trustworthiness of other nodes. This feedback loop allows the system to dynamically adjust delegation decisions, ensuring that nodes with high trust scores are selected for consensus participation while maintaining efficient transaction processing speeds.
Solution Approach 2:
The patent changes the parameter of node selection from random or uniform distribution to trust-based weighted selection. By adjusting the delegation rate and node selection criteria based on trust scores, the system optimizes the balance between transaction processing speed and security against malicious nodes.
3Ease of operation
If a fixed delegation rate is used to simplify node selection, then ease of operation is improved, but adaptability to network conditions decreases
Solution Approach 1:
The patent transitions from a static fixed delegation rate to a dynamic delegation rate that adapts to network conditions. The system automatically adjusts the delegation rate based on factors such as network traffic volume, node trust scores, and consensus performance, maintaining ease of operation while improving adaptability.
Solution Approach 2:
The patent implements self-service through automated trust evaluation and delegation rate adjustment. The system autonomously monitors network conditions and node behavior, automatically optimizing the delegation rate without requiring manual intervention, thus maintaining operational simplicity while enhancing adaptability to changing conditions.
Data Source
AI summary
An apparatus for managing delegation consensus of a blockchain network, obtains state information including trust of each delegated node in the current epoch of the blockchain network, determines an action including a delegation rate by performing a neural network operation on the state information, creates, according to the determined action, a local trust opinion (hereinafter, LTO) matrix representing a mutual subjective evaluation of each delegated node, and selects, based on the trust calculated using the LTO matrix, K delegated nodes according to the determined delegation rate among N nodes.