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Emilie Ma
Tuesday 06 May 2025, 14:00-15:00
Kintsugi: A Decentralized E2EE Key Recovery Protocol
- đ¤ Speaker: Emilie Ma
- đ Date & Time: Tuesday 06 May 2025, 14:00 - 15:00
- đ Venue: Webinar (via Zoom online)
Abstract
Key recovery is the process of regaining access to end-to-end encrypted data after the user has lost their device, but still has their password. Existing E2EE key recovery methods, such as those deployed by Signal and WhatsApp, centralize trust by relying on servers administered by a single provider.
In this talk, we share our recent work on Kintsugi, a decentralized recovery protocol that distributes trust over multiple recovery nodes. This talk will cover how we developed Kintsugi and its unique security properties, as well as compare it to prior E2EE key recovery work.
Zoom link: https://cam-ac-uk.zoom.us/j/84072830114?pwd=3zxgIngk7X6zSPiEM6SMsziQWBW07y.1
Series This talk is part of the Computer Laboratory Security Seminar series.
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