BloHeS Consensus Mechanism – Introduction and Performance Evaluation

Abstract

Consensus mechanisms are important instruments of Blockchain based systems. The consensus mechanism performance depends on its capability to balance the security, scalability and decentralization of the network. The Proof-of-work and Proof-of-stake are the most accepted consensus mechanisms. However, despite the highest level of protection they are struggling to scale with the increased transaction demand. Comparably, the Tendermint consensus mechanism has better scaling property, but decreased protection capabilities. This paper introduces the BloHeS consensus mechanism that is based on the Tendermint consensus mechanism. The BloHeS is capable to reduce the message complexity, still keeping the protection capabilities on par with the Tendermint consensus mechanism.