Hedging Against Sore Loser Attacks in Cross-Chain Transactions
Yingjie Xue, Maurice Herlihy
Abstract
A sore loser attack in cross-blockchain commerce rises when one party decides to halt participation partway through, leaving other parties' assets locked up for a long duration. Although vulnerability to sore loser attacks cannot be entirely eliminated, it can be reduced to an arbitrarily low level. This paper proposes new distributed protocols for hedging a range of cross-chain transactions in a synchronous communication model, such as two-party swaps, n-party swaps, brokered transactions, and auctions.
Topics & Concepts
Computer securityVulnerability (computing)Computer scienceBusinessBlockchain Technology Applications and SecurityDistributed systems and fault toleranceAdvanced Queuing Theory Analysis