Federated single sign-on (or SSO) is a modern way to solve the problem of having multiple logins between different services and applications. Let’s take a look at three of today’s common federated identity protocols: SAML, OAuth 2.0, and OpenID Connect. SAML The first of the authentication methods that I’d like to talk about today is SAML, which stands for Security Assertion Markup Language. SAML is the oldest of the free main federated identity protocols, with its last major revision in 2005. There are three major players in SAML – the user, the Identity Provider (or IdP) that authenticates the user, … Read More