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android / platform / external / rust / crates / mls-rs / refs/heads/sdk-release
commitd274081790acff1b821a73dd61c04a44e32d91dc[log] [tgz]
authorAndroid Build Coastguard Worker <[email protected]>Tue Oct 15 23:11:43 2024 +0000
committerAndroid Build Coastguard Worker <[email protected]>Tue Oct 15 23:11:43 2024 +0000
tree0a0622defcf7ce9c8267c068acb5072587e96855
parentdb81d8d8081def1c61a1df20212e910a36477ab1 [diff]
parentc6151420b1eed6456b600ff17b5aa00168db8d7f [diff]
Snap for 12503729 from c6151420b1eed6456b600ff17b5aa00168db8d7f to sdk-release

Change-Id: I1df95fd73b5c1e1f9112a4f1227b794ad9145875
tree: 0a0622defcf7ce9c8267c068acb5072587e96855
  1. .cargo/
  2. benches/
  3. examples/
  4. patches/
  5. src/
  6. test_utils/
  7. tests/
  8. LICENSE ⇨ LICENSE-apache
  9. .cargo_vcs_info.json
  10. Android.bp
  11. Cargo.lock
  12. Cargo.toml
  13. LICENSE-apache
  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.