SecurityAnalysisofRippleConsensusIgnacioAmores-Sesar1UniversityofBernignacio.amores@inf.unibe.chChristianCachin1UniversityofBerncachin@inf.unibe.chJovanaMi´ci´c1UniversityofBernjovana.micic@inf.unibe.chAbstractTheRipplenetworkisoneofthemostprominentblockchainplatformsanditsnativeXRPtokencur-rentlyhasoneofthehighestcryptocurrencymarketcapitalizations.TheRippleconsensusprotocolpowersthisnetworkandisgenerallyconsideredtoaByzantinefault-tolerantagreementprotocol,whichcanreachconsensusinthepresenceoffaultyormaliciousnodes.IncontrasttotraditionalByzantineagreementprotocols,thereisnoglobalknowledgeofallparticipatingnodesinRippleconsensus;instead,eachnodedeclar...