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android / platform / external / rust / crates / mls-rs / bb7eddddb7fac03d078fce6e9ca26555dcabfe16
commitbb7eddddb7fac03d078fce6e9ca26555dcabfe16[log] [tgz]
authorAndroid Build Coastguard Worker <android-build-coastguard-worker@google.com>Thu May 16 01:14:16 2024 +0000
committerAndroid Build Coastguard Worker <android-build-coastguard-worker@google.com>Thu May 16 01:14:16 2024 +0000
tree3fddde439a6f7fdab6659da3964efd7f8659743e
parent31c624f2f684a88bbcb3a8bfaa61a74d08616a42 [diff]
parente8126a62309debac48433eab8421b2c38214022d [diff]
Snap for 11847214 from e8126a62309debac48433eab8421b2c38214022d to 24Q3-release

Change-Id: I39ee9d90d998043bf3a8653658f4e9bd7ff0bc94
tree: 3fddde439a6f7fdab6659da3964efd7f8659743e
  1. .cargo/
  2. benches/
  3. examples/
  4. src/
  5. test_utils/
  6. tests/
  7. LICENSE ⇨ LICENSE-apache
  8. .cargo_vcs_info.json
  9. Android.bp
  10. Cargo.lock
  11. Cargo.toml
  12. cargo_embargo.json
  13. LICENSE-apache
  14. LICENSE-mit
  15. METADATA
  16. MODULE_LICENSE_APACHE2
  17. OWNERS
  18. README.md
  19. 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.