"The developers behind the OAuth protocol have developed a new variant called OAuth WRAP that is simpler and easier to implement. It's a stop-gap solution that will enable broader OAuth adoption while OAuth 2.0, the next generation of the specification, is devised by a working group that is collaborating through the Internet Engineering Task Force (IETF)."
Quick intro to Oauth + differences with Oauth WRAP (OAuth Web Resource Authorization Protocol):
– simplified variant
– communication takes place of SSL (mandatory!)
– tokens in OAuth WRAP are short lived and can represent claims issued by an authorization server