Auth systems

Rationale
There are several specific issues with the existing, authentication methods used on the WMF sites: Additionally, several new features for authentication and authorization have been requested:
 * Increasingly, 3rd party cookies are disabled in browsers
 * Several bugs related to CentralAuth's single sign-on system
 * OpenID
 * OAuth
 * Cross-wiki editing (Mobile, VisualEditor)

Timeline
See Auth systems/2013

Summary:
 * August 2013: SUL2 (fixing CentralAuth bugs and modernizing single-user signon for newer browsers)
 * August 2013: Wikimedia-internal cross-wiki edit tokens
 * November 2013: OAuth
 * Delayed until sometime in 2014: OpenID

Documents

 * Auth systems/SUL2 - Description of improved SUL setup
 * Auth systems/OAuth - Plan for implementation of OAuth