Master-slave multi-chain cross-chain method and system based on voting and credit mechanism

Abstract

The invention discloses a master-slave multi-chain cross-chain method and system based on a voting and credit mechanism. The ownership of an accounting right is determined by introducing a voting mechanism, so that the computing power competition between nodes is avoided, and all the nodes in the system can obtain the accounting right fairly; the credit value is given to the node, so that the influence of rights and interests on the system is reduced, and meanwhile, the behavior of the node can be better restrained by performing quantitative evaluation on the behavior of the node, so that the node can worry about malicious behaviors; on the basis, a master-slave multi-chain layered cross-chain model with a slave chain based on POVT consensus and a main chain based on PBFT consensus is constructed, experimental analysis is performed on the performance of the master-slave multi-chain layered cross-chain model, and results show that the efficiency of the system is improved; and meanwhile, the system has certain defense capability on attack means such as double-blossom attack, selfish mining and right and interest crushing.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to a master-slave multi-chain cross-chain method and system based on a voting and credit mechanism. Background technique [0002] As a distributed database, the most basic and core requirement of the blockchain is that all nodes can reach a consensus on the stored data, so the consensus mechanism has always been the focus of research. [0003] At present, consensus algorithms commonly used in blockchain technology include workload proof PoW (Proof of Work), equity proof PoS (Proof of Stake) and practical Byzantine fault tolerance algorithm PBFT (Practical Byzantine Fault Tolerance). Among them, compared with the PoW consensus, the PoS consensus reduces the difficulty of mining by investing equity. The more equity invested, the lower the difficulty of mining. This method considers that the more people who hold tokens, the more they want to maintain The stability of the system, ...

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Problems solved by technology

However, this also brings new problems. The more tokens people have, the more likely they are to obtain the right to generate blocks, so as to get block rewards. This will form a vicious circle, which is not conducive to the long-term fairness of the system and stability, and the PoS consensus will eventually compete for bookkeeping rights through hash operations

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