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UID:www.tcs.tifr.res.in/event/1335
DTSTAMP:20231130T075535Z
SUMMARY:Optimal Flexible Consensus and its Application to Ethereum
DESCRIPTION:Speaker: Srivatsan Sridhar (Stanford University\, U.S.A.)\n\nAb
 stract: \nClassic BFT consensus protocols guarantee safety and liveness fo
 r all clients if fewer than one-third of replicas are faulty. However\, in
  applications such as high-value payments\, some clients may want to prior
 itize safety over liveness. Flexible consensus allows each client to opt f
 or safety against more than one-third faulty replicas\, albeit at the expe
 nse of liveness under fewer faults. I will present the first construction 
 that allows the optimal safety-liveness tradeoff for every client simultan
 eously. This construction is modular and is realized as an add-on applied 
 on top of an existing consensus protocol. I adapt this construction to the
  existing Ethereum protocol in the form of optimal flexible confirmation r
 ules that clients can adopt unilaterally without requiring system-wide cha
 nges. I will show results and insights from implementing the confirmation 
 rules on an Ethereum client.\nThis talk is based on a paper set to appear 
 at IEEE S&P 2024 and is a joint work with Joachim Neu\, Lei Yang\, and Dav
 id Tse.\n
URL:https://www.tcs.tifr.res.in/web/events/1335
DTSTART;TZID=Asia/Kolkata:20231212T160000
DTEND;TZID=Asia/Kolkata:20231212T170000
LOCATION:A201
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