Work

Securing Parallel-chain Protocols under Variable Mining Power

Year: 2021

Type: conference-paper

Abstract: Several emerging proof-of-work (PoW) blockchain protocols rely on a ''parallel-chain'' architecture for scaling, where instead of a single chain, multiple chains are run in parallel and aggregated. A key requirement of practical PoW blockchains is to adapt to mining power variations over time (Bitcoin's total mining power has increased by a 1014 factor over the decade). In this paper, we consider the design of provably secure parallel-chain protocols which can adapt to such mining power variations.

Source: ACM SIGSAC Conference on Computer and Communications Security (CCS)

DOI: 10.1145/3460120.3485254

Authors: Xuechao Wang, Viswa Virinchi Muppirala, Lei Yang, Sreeram Kannan, Pramod Viswanath

Institutions: University of Illinois Urbana-Champaign, University of Washington, Massachusetts Institute of Technology

Language: English

Topic: Blockchain Technology Applications and Security

Subfield: Information Systems

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Army Research Office

Awards: G6386068022, CIF: Medium: Anonymous Broadcasting over Networks: Fundamental Limits and Algorithms, CIF: Medium: Collaborative Research: Learning in Networks: Performance Limits and Algorithms, G776729692