6 papers
Finding Nemo-Nemo: CFT DAG-based Consensus in the WAN
Rithwik Kerur, Pasindu Tennage, Philipp Jovanovic +3
This paper introduces Nemo-Nemo, a practical crash-fault tolerant (CFT) consensus protocol designed to outperform existing protocols in wide-area networks by bridging design princi…
TRIP: Coercion-resistant Registration for E-Voting with Verifiability and Usability in Votegral
Louis-Henri Merino, Simone Colombo, Rene Reyes +9
Online voting is convenient and flexible, but amplifies the risks of voter coercion and vote buying. One promising mitigation strategy enables voters to give a coercer fake voting…
RACS-SADL: Robust and Understandable Randomized Consensus in the Cloud
Pasindu Tennage, Antoine Desjardins, Lefteris Kokoris-Kogias
Widely deployed consensus protocols in the cloud are often leader-based and optimized for low latency under synchronous network conditions. However, cloud networks can experience d…
Towards the ideals of Self-Recovery and Metadata Privacy in Social Vault Recovery
Shailesh Mishra, Simone Colombo, Pasindu Tennage +2
Social key recovery mechanisms enable users to recover their vaults with the help of trusted contacts, or trustees, avoiding the need for a single point of trust or memorizing comp…
Baxos: Backing off for Robust and Efficient Consensus
Pasindu Tennage, Cristina Basescu, Eleftherios Kokoris Kogias +3
Leader-based consensus algorithms are vulnerable to liveness and performance downgrade attacks. We explore the possibility of replacing leader election in Multi-Paxos with random e…
Mahi-Mahi: Low-Latency Asynchronous BFT DAG-Based Consensus
Philipp Jovanovic, Lefteris Kokoris Kogias, Bryan Kumara +3
We present Mahi-Mahi, the first asynchronous BFT consensus protocol that achieves sub-second latency in the WAN while processing over 100,000 transactions per second. We accomplish…