Authorize is a Grails (http://www.grails.org) authentication and authorization plugin. It is a 'pure Grails' plugin as it has no dependency on any underlying Java framework.

Authorize is intended for fairly simple authentication and authorization. Other frameworks such as Acegi or JSecurity might be better suited to more complex authentication needs.

The initial proposal for this plugin can be found at: http://docs.codehaus.org/display/GRAILS/Authorize+Plugin+Proposal