CHACHA20_POLY1305 cipher suites for TLS

Chrome 31 deployed a new TLS cipher suite based on Prof. Dan Bernstein's ChaCha20 and Poly1305 algorithms. They run three times faster than AES-GCM on devices that don't have AES hardware acceleration, including most Android phones. These have now made their way through the standardization process. We'll be deploying the standardized variant in Chrome 49.

Documentation

https://googleonlinesecurity.blogspot.com/2014/04/speeding-up-and-strengthening-https.html

Specification

Editor's draft

Status in Chromium

Blink components: Blink

Enabled by default in:

Chrome for desktop release 49
Chrome for Android release 49
Android WebView release 49

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

Firefox: In development
Edge: No public signals
Safari: No public signals
Web Developers: No signals

Owners

davidben@chromium.org
agl@chromium.org

Last updated on 2017-06-14