Google Git
Sign in
android / platform / external / rust / crates / mls-rs / 51f31ccd15c1b26d5f9a23adb7ebd680c73f6e52
commit51f31ccd15c1b26d5f9a23adb7ebd680c73f6e52[log] [tgz]
authorMartin Geisler <mgeisler@google.com>Tue Apr 09 13:35:45 2024 +0200
committerMartin Geisler <mgeisler@google.com>Tue Apr 09 20:40:35 2024 +0200
tree23b070c61b3b54e6fa7298a5ee7e2cce8d154a58
parent64c67b1b32441f8096c819e80b8d2a77b1fb7b28 [diff]
Import 'mls-rs' crate

Request Document: go/android-rust-importing-crates
For CL Reviewers: go/android3p#cl-review
For Build Team: go/ab-third-party-imports
Bug: http://b/330708876
Test: m libmls_rs

Change-Id: Ib0a891a4d7bf582ebea9ba7a1447ea959e42e0d3
122 files changed
tree: 23b070c61b3b54e6fa7298a5ee7e2cce8d154a58
  1. .cargo/
  2. benches/
  3. examples/
  4. src/
  5. test_utils/
  6. tests/
  7. LICENSE ⇨ LICENSE-apache
  8. .cargo_vcs_info.json
  9. Cargo.lock
  10. Cargo.toml
  11. cargo_embargo.json
  12. LICENSE-apache
  13. LICENSE-mit
  14. METADATA
  15. MODULE_LICENSE_APACHE2
  16. OWNERS
  17. README.md
  18. webdriver.json
README.md

mls-rs   Build Status Latest Version API Documentation codecov

An implementation of the IETF Messaging Layer Security end-to-end encryption (E2EE) protocol.

What is MLS?

MLS is a new IETF end-to-end encryption standard that is designed to provide transport agnostic, asynchronous, and highly performant communication between a group of clients.

MLS Protocol Features

  • Multi-party E2EE group evolution via a propose-then-commit mechanism.
  • Asynchronous by design with pre-computed key packages, allowing members to be added to a group while offline.
  • Customizable credential system with built in support for X.509 certificates.
  • Extension system allowing for application specific data to be negotiated via the protocol.
  • Strong forward secrecy and post compromise security.
  • Crypto agility via support for multiple cipher suites.
  • Pre-shared key support.
  • Subgroup branching.
  • Group reinitialization for breaking changes such as protocol upgrades.

Features

  • Easy to use client interface that can manage multiple MLS identities and groups.
  • 100% RFC 9420 conformance with support for all default credential, proposal, and extension types.
  • Support for WASM builds.
  • Configurable storage for key packages, secrets and group state via traits along with provided “in memory” and SQLite implementations.
  • Support for custom user proposal and extension types.
  • Ability to create user defined credentials with custom validation routines that can bridge to existing credential schemes.
  • OpenSSL and Rust Crypto based cipher suite implementations.
  • Crypto agility with support for user defined cipher suite.
  • Extensive test suite including security and interop focused tests against pre-computed test vectors.

Crypto Providers

For cipher suite descriptions see the RFC documentation here

NameCipher SuitesX509 Support
OpenSSL1-7Stable
AWS-LC1,2,3,5,7Stable
Rust Crypto1,2,3⚠️ Experimental
Web Crypto⚠️ Experimental 2,5,7Unsupported

Security Notice

This library has been validated for conformance to the RFC 9420 specification but has not yet received a full security audit by a 3rd party.

License

This library is licensed under the Apache-2.0 or the MIT License.