Last week ForgeRock released a platform update, including many new features. One of those features is support for User-Managed Access (UMA). UMA is a profile of OAuth 2.0 that allows resource owners to share their resources with others in a standard way. UMA puts resource owners in charge of defining policies for accessing their resources. From that perspective, UMA could be seen as highly scalable delegated policy administration.
At a very high level, this short video on privacy introduces the ideas it.
At a level closer to the implementation, UMA describes how authorization servers, resource servers, and UMA clients interact to enable resource sharing. In the ForgeRock platform, OpenAM plays the role of authorization server. OpenIG plays the role of resource server. (These are currently the working parts of OpenUMA.) In the present implementation, the client side is for you to implement, although the OpenIG docs include an example client, and there are ForgeRock demos that cover the client side as well. You can download OpenAM 13 and OpenIG 4 from the ForgeRock BackStage downloads page.
To get started with OpenAM authorization server implementation, install OpenAM and then have a look at the Administration Guide chapter on Managing UMA Authorization.
To try OpenIG’s UMA resource server capabilities, install OpenIG and then have a look at the OpenIG Gateway Guide chapter on OpenIG As an UMA Resource Server.
The latter chapter is a tutorial that describes how to get everything working together including a minimalist, browser-based UMA client.