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SUMMARY:Mix-net cryptoeconomics: Rebooting privacy-preserving communicatio
 ns as incentive-driven collaborative projects - Aggelos Kiayias\, Universi
 ty of Edinburgh
DTSTART:20210427T130000Z
DTEND:20210427T140000Z
UID:TALK158380@talks.cam.ac.uk
CONTACT:Jack Hughes
DESCRIPTION:Applying cryptographic operations in a distributed and collabo
 rative fashion \nhas been for more than four decades a dominant paradigm i
 n the design \nof privacy-preserving communications systems and specifical
 ly mix-nets. The\ndesign of such systems present to the end user a guarant
 ee that typically \ninvolves a threshold condition. For instance\, such co
 ndition could have the form \n"as long as x out of a certain set of y cryp
 tographic keys remain\nuncompromised then privacy is maintained.” Enforc
 ing the condition \nis typically out of scope for the system design and th
 e end-user\nhas no tools whatsoever to assess whether the condition holds.
  As a result\,\nit is typically taken at face value. This is unfortunate a
 s it may lead\nto deployments where privacy fails - and to make matters wo
 rse\, \nno-one may even be aware of it.\n\nIn this talk\, I will present o
 ngoing work (in collaboration with \nClaudia Diaz and Harry Halpin) that i
 s pursued in the context of \nNym (https://nymtech.net/)\, an incentivised
  mix-network system. \nThe design is based on new techniques in the contex
 t of mix-nets \nas well as it suitably adapts concepts first developed in 
 the context \nof blockchain protocols\, and offers an incentive-driven pri
 vacy \npreserving communication infrastructure that aims to provide privac
 y via\na novel "cryptoeconomic” mechanism.\n\n\nRECORDING : Please note\
 , this event will be recorded and will be available after the event for an
  indeterminate period under a CC BY -NC-ND license. Audience members shoul
 d bear this in mind before joining the webinar or asking questions.
LOCATION:Webinar - link in abstract
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