Meri Leeworthy

Messaging Layer Security

Comes after Signal protocol introducing cryptographic guarantees on a few new properties:

How is MLS designed?

Architecture

Besides the client, MLS requires two additional services:

Quantum example of benefits of log updates

Operations:

Application messages are encrypted using the key at the root

Continuous Group Key Agreement Papers: Continuous Group Key Agreement with Active Security A More Complete Analysis of the Signal Double Ratchet Algorithm How to Hide MetaData in MLS-Like Secure Group Messaging - Simple, Modular, and Post-Quantum On the Insider Security of MLS DeCAF - Decentralizable CGKA with Fast Healing Key Agreement for Decentralized Secure Group Messaging with Strong Security Guarantees A Concrete Treatment of Efficient Continuous Group Key Agreement via Multi-Recipient PKEs Server-Aided Continuous Group Key Agreement

I live and work on the land of the Wurundjeri people of the Kulin Nation. I pay respect to their elders past and present and acknowledge that sovereignty was never ceded. Always was, always will be Aboriginal land.

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