ARC: An Asynchronous Consensus and Relay Chain-based Cross-chain Solution to Consortium Blockchain
Shaobo Zhang, Tianxiu Xie, Keke Gai, Lei Xu
Abstract
Cross-chain technology has become an important research direction of blockchain, which realizes value transfer and intercommunication between different blockchain systems. The latency and the throughput of the existing cross-chain systems hinder further expansion due to the limitation of synchronous consensuses. In order to address the low performance and limited reliability of cross-chain systems, this paper proposes a relay chain-based cross-chain system, called ARC, with the asynchronous consensus, which ensures the global consensuses and improves the robustness and scalability of the cross-chain systems. We also conduct a security analysis to show the security property of ARC when deployed in adversarial scenarios.