Overview of Single Sign-On
Federated single sign-on (SSO) standards such as SAML 2.0 provide secure mechanisms for passing credentials and related information between different websites that have their own authorization and authentication systems. SAML 2.0 is an open standard developed by the OASIS Security Services Technical Committee.
The SAML 2.0 protocol has seen significant success, gaining momentum in financial services, higher education, government, and other industry segments. SAML 2.0 support has been implemented by all major web-access management vendors. The U.S. Government General Services Administration (GSA) requires all vendors participating in the U.S. E-Authentication Identity Federation program to be SAML 2.0-compliant.
SAML 2.0-compliant websites exchange user credential information using SAML assertions. A SAML assertion is an XML document that contains trusted statements about a subject including, for example, a username and privileges. SAML assertions are digitally signed to ensure their authenticity.
Many large enterprises have deployed federated Identity and Access Management (IAM) and Identity Provider (IdP) systems, such as Ping Identity Ping Federate, CA SiteMinder, Open AM, and Windows ADFS 2.0 on their corporate intranets. These IAM and IdP systems handle the user authentication and SSO requirements for employees and partners. IAM and IdP systems use the SAML protocols to interoperate with partner websites outside their firewalls. Users can utilize their IAM and IdP systems to automatically authenticate their users to Cisco WebEx Meeting services. This increases efficiency because users do not have to remember their usernames and passwords to start or join meetings on their Cisco WebEx sites.
WebEx Meetings Server supports SAML 2.0 IdPs only. It does not support IdPs based on the older SAML 1.1 and WS-Federate standards. This restriction stands in contrast to the cloud-based Cisco WebEx Meeting services which continue to support SAML 1.1 and WS-Federate. The following is a list of SAML 2.0 IdPs that have been validated to work with Cisco WebEx Meetings Server:
Because SAML 2.0 is an open standard, other SAML 2.0 IdPs might also operate with Cisco WebEx Meetings Server. However, other SAML 2.0 IdPs have not been tested by Cisco. It is therefore the administrator's responsibility to make any such integration operational.