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.
翻译:当一方决定停止参与,将另一方的资产长期锁在一起时,跨供应链商务中的“失败者”攻击* 上升了。 虽然对失败者攻击的易感性无法完全消除,但可以降低到任意的低水平。 本文提出了新的分布式协议,以同步通信模式对一系列跨链交易进行套期保值,如双方互换、美元对换、中介交易和拍卖。