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SUMMARY:Reward Sharing for Mixnets  - Claudia Diaz\, KU Leuven
DTSTART:20220607T130000Z
DTEND:20220607T140000Z
UID:TALK170573@talks.cam.ac.uk
CONTACT:Kieron Ivy Turk
DESCRIPTION:In this talk I will present a reward sharing scheme for incent
 ivized network privacy infrastructures such as the Nym mixnet. The talk is
  based on a paper co-authored with Aggelos Kiayias and Harry Halpin that w
 ill soon appear in the MIT Cryptoeconomic Systems (CES) journal.  The rewa
 rd scheme uses a bootstrapping reserve and a bandwidth pricing mechanism t
 o fund a decentralized\, economically sustainable mixnet that can scale\, 
 as increased usage translates into fees that allow the mixnet to grow to m
 eet demand. The scheme periodically selects mix nodes to mix packets propo
 rtionally to their reputation\, which signals the confidence of stakeholde
 rs in a node’s reliability and performance. Selected mix nodes are then 
 rewarded proportionally to their reputation and performance\, and share th
 eir rewards with the stakeholders supporting them. We prove the properties
  of the scheme with a game-theoretic analysis\, showing that the equilibri
 a promote decentralization and mixnet performance. We further evaluate the
  scheme empirically via simulations that consider non-ideal conditions and
  show that the mixnet can be viable under realistic assumptions. 
LOCATION:Webinar - link on talks.cam page after 12 noon Tuesday
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