Messaging Layer Security
Messaging Layer Security (MLS), is a security layer for end-to-end encrypting messages in groups of size two to many. It is being built by the IETF MLS working group and designed to be efficient, practical and secure.
Security properties of MLS include message confidentiality, message integrity and authentication, membership authentication, asynchronicity, forward secrecy, post-compromise security, and scalability.
Initial ideas were based on pairwise encryption for secure 1:1 and group communication. In 2017, an academic paper introducing Asynchronous Ratcheting Trees was published by University of Oxford setting the focus on more efficient encryption schemes.
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- Chirgwin, Richard (22 August 2018). "Elders of internet hash out standards to grant encrypted message security for world+dog". Retrieved 30 November 2018.