| 摘要 |
<p>A method, system, or computer program product is presented for cross-domain, single-sign-on, authentication functionality. A user may contract with one or more authentication service providers (ANSPs). E-commerce service providers (ECSPs), such as online banks or online merchants, also maintain a relationship with an ANSP such that the ECSP can trust the authenticated identity of a user that is vouched-for by the ANSP on behalf of the user. The user can visit any e-commerce service provider in a federated environment without having to establish an a priori relationship with that particular ECSP. As long as the ECSP's domain has a relationship with at least one of the user's authentication service providers, then the user will be able to have a single-sign-on experience at that ECSP.</p> |
