How we built it

X25519 for TLS

Curve25519, designed by Prof. Dan Bernstein, is one of the two curves selected by the CFRG for recommendation. When compared to P-256, the most commonly used curve in TLS today, it admits simpler, faster implementations that are more naturally resistant to side-channels. In Chrome 50, we will be adding support for X25519, the Diffie-Hellman primitive over curve25519, to TLS.


Editor's draft

Status in Chromium

Enabled by default (launch bug) in:

  • Chrome for desktop release 50
  • Chrome for Android release 50
  • Android WebView release 50
  • Opera release 37
  • Opera for Android release 37

Consensus & Standardization

  • No public signals
  • In development
  • No public signals
  • No signals


Last updated on 2016-01-20