Which method allows Deep Security to authenticate using an external Identity Provider?

The method that allows Deep Security to authenticate using an external Identity Provider is SAML 2.0. This protocol is specifically designed for Single Sign-On (SSO) scenarios, enabling secure exchange of authentication and authorization data between a service provider and an identity provider across the web.

SAML 2.0 facilitates seamless user experiences by allowing users to log in once and gain access to multiple applications without needing to re-authenticate. It achieves this by enabling the identity provider to authenticate users and then send that authenticated information as a SAML assertion to the service provider (in this case, Deep Security).

The use of SAML 2.0 is prevalent in enterprise environments, where organizations typically use identity providers to manage user identities and streamline access to various services. This integration not only enhances security but also simplifies the management of user credentials and access rights across different systems.

In contrast, while OAuth 2.0 and OpenID are also protocols related to authentication and authorization, they serve different purposes. OAuth 2.0 is mainly about delegated access, allowing applications to access user information without sharing passwords, and OpenID is focused more on user identity authentication rather than the broader SSO capabilities that SAML provides. LDAP, on the other hand,