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cs.DC2026
The Consensus Number of Untraceable Cryptocurrencies
Christian Cachin, David Lehnherr, Juan Villacis +1
Sender untraceability hides the account spent by a cryptocurrency transfer among a set of candidates, its masking set. What a transfer does to that set separates two designs: class…
cs.DC2026
Symmetry all the way down
Ignacio Amores-Sesar, Christian Cachin, Simon Holmgaard Kamp +1
Asymmetric trust generalizes classical symmetric quorum systems by allowing each process to specify its own failure assumptions. While this flexibility enables tolerance of strictl…
cs.DC2026
Simple-IT: Practical Low-Latency Signature-Free BFT Consensus
Qianyu Yu, Juan Villacis, Giuliano Losa +2
Recent advances in quantum computing pose a looming threat to most current Byzantine fault-tolerant (BFT) consensus protocols, which rely on quantum-vulnerable public-key signature…