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FastPay: High-Performance Byzantine Fault Tolerant Settlement [article]

Mathieu Baudet, George Danezis, Alberto Sonnino
2020 arXiv   pre-print
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.  ...  FastPay is based on Byzantine Consistent Broadcast as its core primitive, foregoing the expenses of full atomic commit channels (consensus).  ...  FastPay is a Byzantine Fault Tolerant (BFT) real-time gross settlement (RTGS) system.  ... 
arXiv:2003.11506v3 fatcat:ftyyfp2zsfhwdbn5phwv4uflea

Scaling Distributed Ledgers and Privacy-Preserving Applications [article]

Alberto Sonnino
2021 arXiv   pre-print
Chainspace is scalable by sharding state; it is secure against subsets of nodes trying to compromise its integrity or availability properties through Byzantine Fault Tolerance (BFT).  ...  Next, we propose FastPay, a high-integrity settlement system for pre-funded payments that can be used as a financial side-infrastructure for Chainspace to support low-latency retail payments.  ...  FastPay: High- Performance Byzantine Fault Tolerant Settlement.  ... 
arXiv:2102.12273v1 fatcat:3twoaysg7rcj7h4yogwsyyzd34

A Limitlessly Scalable Transaction System [article]

Max Mathys, Roland Schmid, Jakub Sliwinski, Roger Wattenhofer
2021 arXiv   pre-print
Similarly to other byzantine fault tolerant systems, we assume up to f = n−1 3 of the validators are adversarial and behave in an arbitrary way. Any set of 2f + 1 validators is called a quorum.  ...  FastPay [2] is concurrent work that provides an implementation of a permissioned settlement system and focuses on interfacing with a preceding, primary system.  ... 
arXiv:2108.05236v1 fatcat:i66xwo5gybawndqjig5bboqecu