Hi, I'd like you to take a look at this patch for potential SecurityImpact. https://review.openstack.org/29130 Log: commit 0271c4eb9a68b3567b80124a7afc6974d9235e44 Author: Steve Martinelli <stevemar at ca.ibm.com> Date: Wed Mar 20 20:02:18 2013 -0700 Add delegated_auth support for keystone Implements an OAuth 1.0a service provider. blueprint: delegated-auth-via-oauth DocImpact SecurityImpact Change-Id: Ib5561593ab608f3b22fbcd7196e2171f95b735e8