Quick Order Fairness: Implementation, Evaluation, and Practical Deployment in Blockchain Networks
Core Concepts
Decentralized finance security protocols like Quick Order-Fair Atomic Broadcast (QOF) enhance fairness and prevent front-running attacks in blockchain networks.
Abstract
Introduction: Discusses the need for fair order in DeFi to prevent front-running attacks.
QOF Protocol: Explains the differential order fairness property and its implementation in QOF.
Implementation: Details the modular implementation of QOF using HotStuff consensus protocol.
Integration: Explores two deployment approaches - as a separate service or integrated with validators.
Evaluation: Analyzes scalability, impact of transaction payload size, network delay, and compares performance with other protocols.
Quick Order Fairness
Stats
Throughput decreases by at most 5%, latency increases by roughly 50ms.
QOF requires O(n2) messages to deliver one transaction compared to Aequitas needing O(n4) messages.
Quotes
"Decentralized finance security protocols aim to prevent front-running attacks."
"QOF protocol enhances fairness and prevents malicious actors from exploiting transaction information."