OAuth vs OpenID
A side-by-side look at OAuth and OpenID. For an in-depth review of either product, follow the links below.
OAuth
Security & Privacy
OAuth is an open standard authorization protocol that allows users to grant third-party access to their web resources without sharing their passwords. It allows access delegation without giving away full credentials.
authenticationauthorizationaccess-control
OpenID
Online Services
OpenID is an open standard and decentralized authentication protocol that allows users to log into different websites using the same digital identity. It eliminates the need for separate usernames and passwords for each site.
authenticationidentityloginopen-standard