基于区块链DPoS共识算法的改进

Improvement of DPoS Consensus Algorithm Based on Blockchain

摘要: 本文针对区块链共识算法中授权股权证明DPoS (Delegated Proof of Stake)的工作机制和流程研究发现，该算法明显存在两个安全隐患：一是在该算法中的部分节点上存在投票不积极，二是存在不可避免的腐败节点。针对上述两个问题，本文通过引入激励机制调节区块的生成难度及成本，提升节点生成区块的积极性。通过对节点激励值进行监督来提升腐败节恶意生成区块的成本，进而有效解决上述两个问题，这样就可以使整个区块链的安全性、稳定性得到大大提升。

Abstract: This paper focuses on the discovery of a working mechanism and process of Delegated Proof of Stake (DPoS) in the blockchain consensus algorithm and finds that has two obvious security problems in the algorithm: one is that some nodes in the algorithm do not vote actively, the other is that there are inevitable corrupt nodes. In order to solve the above two problems, we introduce an incentive mechanism to adjust the difficulty and cost of block generation and improve the enthusiasm of node block generation. By monitoring the incentive value of nodes to increase the cost of malicious blocks, and then effectively solve the above two problems, the security and stability of the whole blockchain can be greatly enhanced.