文献类型：期刊文献

英文题名：AMC: A PoS Blockchain Consensus Protocol for Scalable Nodes

作者：Wang, Mengnan[1]; Jiang, Yahui[1]; Huang, Jianhua[1]; Tang, Ruicong[2]

机构：[1] School of information science and engineering, East China University of Science and Technology, 130, Meilong Road, Xuhui District, Shanghai, 200237, China; [2] Hong Kong DAEX Blockchain Limited, Hong Kong, 999077, Hong Kong

年份：2022

卷号：24

期号：5

起止页码：802

外文期刊名：International Journal of Network Security

收录：EI(收录号：20223712704344)

语种：英文

外文关键词：Computing power - Energy utilization - Random number generation - Random processes

摘要：In the public blockchain environment, most of the existing algorithms implement sharding through PoW. The difficulty-based sharding calculation brings energy consumption problems and seriously affects the randomness and performance of sharding. This paper proposed AMC (Agreement based on Multi-party Computation), a scalable PoS blockchain consensus protocol. AMC uses secure multi-party computing (MPC) to achieve sharding instead of consuming computing power. The MPC algorithm πrandom is used to generate a recognized random number, which ensures the randomness of sharding. πrandom includes verifying aggregate values, which can reduce the verification complexity to O(1) when all the verified parties are honest. In addition, an improved Tendermint algorithm is used to reach consensus in shards, and the follow-the-satoshi algorithm is used to make the leader election more random and secure. AMC introduced a deposit mechanism to deal with Sybil Attacks and established a forked accountability system to constrain the nodes’ malicious behavior, thus protecting the system’s security. ? 2022, International Journal of Network Security. All rights reserved.