论文标题
FastPay：高性能拜占庭式容忍定居点
FastPay: High-Performance Byzantine Fault Tolerant Settlement
论文作者
论文摘要
FastPay允许一组分布式当局（其中一些是拜占庭的），以维护高融合性和可用性和解系统，以进行预资助的付款。它可用于在价值单位（加密货币）或财务侧面基础设施中解决付款，以支持法定货币的零售付款。 FastPay基于拜占庭一致的广播，作为其核心原始广播，它已经提出了完整的原子犯罪渠道（共识）的费用。最终的系统对于确认和付款终结性具有低延迟。值得注意的是，每个机构都可以在许多机器上碎片，以允许无限的水平可扩展性。我们的实验表明，洲际确认延迟小于100ms，这使得适用于销售点的FastPay。在实验室环境中，我们每秒实现了超过80,000件交易，其中20个当局超过了当前的零售卡支付网络的要求，同时大大提高了它们的鲁棒性。
FastPay allows a set of distributed authorities, some of which are Byzantine, to maintain a high-integrity and availability settlement system for pre-funded payments. It can be used to settle payments in a native unit of value (crypto-currency), or as a financial side-infrastructure to support retail payments in fiat currencies. FastPay is based on Byzantine Consistent Broadcast as its core primitive, foregoing the expenses of full atomic commit channels (consensus). The resulting system has low-latency for both confirmation and payment finality. Remarkably, each authority can be sharded across many machines to allow unbounded horizontal scalability. Our experiments demonstrate intra-continental confirmation latency of less than 100ms, making FastPay applicable to point of sale payments. In laboratory environments, we achieve over 80,000 transactions per second with 20 authorities---surpassing the requirements of current retail card payment networks, while significantly increasing their robustness.
