What authentication framework allows users to authenticate once and receive authorizations for multiple services?

The authentication framework that enables users to authenticate once and receive authorizations for multiple services is Single Sign-On (SSO). SSO simplifies the authentication process by allowing users to log in a single time and then access various applications and services without needing to re-enter their credentials for each individual service.

This mechanism enhances user convenience and improves productivity, as it reduces the number of times users need to remember and input their passwords. Additionally, SSO can improve security by decreasing the chances of password fatigue, which often leads users to employ weaker passwords or reuse the same password across multiple platforms.

In a typical SSO implementation, once the user is authenticated, the system creates a session that retains the user's identity, allowing seamless access to different services while maintaining security and identity management.

The other frameworks mentioned do not provide this same type of seamless user experience across multiple services. For example, Kerberos is a network authentication protocol that uses tickets to allow nodes to prove their identity securely, but it does not create any overarching user session for multiple services in the way SSO does. EAP-TLS and EAP-FLEXIBLE are Extensible Authentication Protocol methods primarily related to network authentication, particularly in wireless networks, but they do not address the single-sign-on