Is SSO the Same as SAML?

Single Sign-On (SSO) and Security Assertion Markup Language (SAML) are frequently confused, yet they serve distinct roles in authentication processes. SSO simplifies user experiences by enabling access to multiple applications with one set of credentials, reducing password fatigue and enhancing security by limiting the number of credentials hackers can target. SAML, an XML-based protocol, facilitates the secure exchange of authentication data between an identity provider (IdP) and a service provider (SP), acting as a digital passport that verifies user identity. While SAML is adept at authentication, it does not handle authorization, which is where OAuth comes into play to define user permissions. Implementing SSO and SAML can be challenging due to complexities in parsing SAML responses and managing various identity providers, prompting many enterprises to rely on established platforms to handle these intricacies. Despite their usefulness, the systems present risks like single points of failure and require robust monitoring and backup strategies to ensure security and continuity.