2-legged OAuth for the OpenSocial REST API - Internet Identity Research

With version .8 of the OpenSocial standard, support was added for REST APIs. The authentication mechanism chosen for those APIs was OAuth. However, there are two flavors of OAuth, and this document attempts to explain the different use cases that they support in OpenSocial, as well as why the "2-legged" variant of OAuth is likely to be more important for most OpenSocial containers to support fir

[ymkjp]

“xoauth_requestor_id”

[kgbu]

なんでProducer, Consumer, Enduserの3者(3-legged)ではなくて2-leggedのケースが問題となるのか、その説明など