BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:One Protocol to Rule Them All? On Securing Interoperable Messaging
  - Jenny Blessing (University of Cambridge)
DTSTART:20240126T160000Z
DTEND:20240126T170000Z
UID:TALK210475@talks.cam.ac.uk
CONTACT:Hridoy Sankar Dutta
DESCRIPTION:European lawmakers have ruled through the Digital Markets Act 
 that users on different platforms should be able to exchange messages with
  each other. Yet messaging interoperability opens up a Pandora’s box of 
 security and privacy challenges. While championed not just as an antitrust
  measure but as a means of providing a better experience for the end user\
 , interoperability runs the risk of making the user experience worse if po
 orly executed. There are two fundamental questions: how to enable the actu
 al message exchange\, and how to handle the numerous residual challenges a
 rising from encrypted messages passing from one service provider to anothe
 r—including but certainly not limited to content moderation\, user authe
 ntication\, key management\, and metadata sharing between providers.\n\nIn
  this talk\, we will survey specific open questions and challenges in inte
 roperable end-to-end encrypted messaging\, with a particular focus on key 
 management\, user identity\, and content moderation. We will outline exist
 ing protocols and designs\, discuss where current solutions fall short\, a
 nd explore possible ways of tackling these challenges.\n\nhttps://cam-ac-u
 k.zoom.us/j/83553682797?pwd=Nnh1cklrRTVoaTJ2Y2tMVDFJS09qdz09\n\nMeeting ID
 : 835 5368 2797\nPasscode: 811133\n\nNOTE: Please do not post URLs for the
  talk\, and especially Zoom links to Twitter because automated systems wil
 l pick them up and disrupt our meeting.
LOCATION:Webinar &amp\; FW11\, Computer Laboratory\, William Gates Buildin
 g.
END:VEVENT
END:VCALENDAR