Which protocol allows organizations to rely on a third-party trust model?

The Trusted Third Party (Bridge) protocol facilitates a third-party trust model by allowing entities to rely on an external authority to manage trust relationships. In many security frameworks, especially those that involve identity and access management, a third-party can serve as an intermediary that vouches for the identity of various parties in a transaction. This is especially useful in scenarios where direct trust relationships between entities are difficult to establish due to various factors such as security policies, organizational boundaries, or differing security postures.

By utilizing a trusted third party, organizations can streamline their authentication processes and improve security by delegating the trust establishment to a dedicated authority that specializes in validating identities and managing trust relationships. This model enhances interoperability among different systems and organizations, as they can all rely on the same trusted third party to verify identities and grant access rights.

Other options, while related to identity and access management, do not specifically embody the concept of a third-party trust model in the same way. Shibboleth and OpenID are protocols that facilitate single sign-on and federated identity management but generally do so by allowing users to authenticate with their identity provider rather than relying on a neutral third party for trust. Lightweight EAP (LEAP), on the other hand, specifically pertains to wireless security