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SUMMARY:IC Colloquium: Ethereum After The Merge: Is It Still Secure?
DTSTART:20221010T161500
DTEND:20221010T173000
DTSTAMP:20260506T020311Z
UID:0aa309155381a91cf1d21c94e2e51ec1ec4af205a353d529f9f10b92
CATEGORIES:Conferences - Seminars
DESCRIPTION:By: Joachim Neu - Stanford University\nVideo of his talk\n\nAb
 stract\nThe transition of Ethereum\, the second largest cryptocurrency\, f
 rom proof-of-work to proof-of-stake is a major feat of engineering. Yet\, 
 regrettably from a blockchain science point of view\, Ethereum went from a
  protocol with a security proof to one without. Furthermore\, the current 
 protocol is complex\, and has already been through multiple cycles of atta
 cks and patches (on the protocol itself\, not “only” on the implementa
 tion). Why is this so? Ethereum aims to satisfy an ambitious list of desid
 erata\, some of which have never been achieved simultaneously before. We p
 resent two examples with recent progress: First\, our ebb-and-flow protoco
 ls and accountability gadgets offer a way to reconcile accountable safety 
 and liveness in an environment with dynamic participation. Second\, we pro
 pose Goldfish\, a simple and provably secure drop-in replacement for Ether
 eum’s current fork-choice rule\, that achieves resilience to chain reorg
 anizations under dynamic participation.\n\nKey papers: https://arxiv.org/
 abs/2009.04987\, https://arxiv.org/abs/2105.06075\, https://arxiv.org/ab
 s/2209.03255\n\nBio\nJoachim Neu is a PhD student at Stanford working with
  David Tse on Internet-scale open-participation consensus (in more hype te
 rms: the technical foundations of blockchains). His current research focus
  is provable consensus security for next-generation Ethereum\, and provabl
 e security and performance of proof-of-stake consensus under bandwidth con
 straints and network-level attacks. In an earlier life\, he published in i
 nformation and coding theory. He has been supported by Protocol Labs PhD F
 ellowship and Ethereum Foundation.\n\nMore information
LOCATION:BC 420 https://plan.epfl.ch/?room==BC%20420 https://epfl.zoom.us/
 j/65326179222
STATUS:CONFIRMED
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