A Rough Consensus is emerging on the characteristics for a consent mechanism to satisfy a diverse set of legal requirements, be effective for end-users, and foster a Internet-scale infrastructure to support it. These items are consumed by the IdP operator and/or by the end-user.
One statement of the set of requirements -
They include:
- trustmarks
- notification and consent suppression options
- icons to represent either the SP or the IdP or both
Internal
External
A variety of mechanisms are anticipated to provide this information