SAML & OAuth 2.0
Both SAML (Security Assertion Markup Language) and OAuth 2.0 are widely used protocols for authentication and authorization in web applications, but they serve different purposes. SAML (Security Assertion Markup Language) Purpose: Primarily designed for authentication and single sign-on (SSO) . How it works: A user attempts to access a service provider (SP). The SP redirects the user to an identity provider (IdP). The IdP authenticates the user and sends a SAML assertion to the SP. The SP validates the assertion and grants access to the user. Common use cases: Enterprise applications, government services, and federated identity management systems. OAuth 2.0 Purpose: Designed for authorization , allowing users to grant third-party applications access to their data on a specific service. How it works: A user attempts to access a resource on a service provider. The SP redirects the user to the authorization server. The user grants permission to the application. The authorization s...