Holistic Research on Blockchain's Consensus Protocol Mechanisms with Security and Concurrency Analysis Aspects of CPS

【Author】 Bhattacharjya, Aniruddha; Wisniewski, Remigiusz; Nidumolu, Venkatram

【Source】ELECTRONICS

【影响因子】2.690

【Abstract】In the present era, the consensus for blockchain is of three types: consortium/permissioned, decentralized/permissionless, and somewhat decentralized. Presently, security and privacy of blockchain scenarios are in four directions: auditability and transparency, accountability and non-repudiation, contract privacy, and transactional privacies. Blockchain works on multilayered architectures with its consensus mechanisms. In this paper, important mechanisms of various consensus protocols for application specific usage are analyzed. In general, these consensus mechanisms have four groups of properties; all are examined and discussed. Moreover, the security analysis is shown. Furthermore, the paper examines the elliptic curve digital signature algorithm (ECDSA), which is in use by the cryptocurrencies along with many blockchain-based systems. Moreover, a variant of ECDSA (vECDSA) is also considered. In particular, ECDSA and vECDSA are compared in this research. In addition, modeling and analysis aspects related to the security and concurrency aspects of CPS are discussed. In particular, Petri-net-based models of CPS are considered, especially in terms of liveness and boundedness properties of the system.

【Keywords】cyber-physical systems (CPS); consensus protocols; security; Petri nets; Proof of Work (PoW); elliptic curve cryptography (ECC); ECDSA; elliptic curve discrete logarithm problem (ECDLP); vECDSA; Proof of Stake (PoS)

【发表时间】2022 SEP

【收录时间】2022-09-22

【文献类型】实验仿真

【主题类别】

区块链技术-核心技术-共识机制