SSO Guide: SAML, OIDC, and OAuth Explained
How SSO protocols work, the difference between SAML and OIDC, and how to evaluate SSO providers for enterprise apps.
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Tags: security, authentication, sso
SSO Guide: Single Sign-On With SAML and OIDC When you log into Slack, Salesforce, and GitHub with a single corporate credential, that is Single Sign-On at work. SSO reduces password fatigue, centralizes authentication policy, and means employees automatically lose access to all connected apps the moment their account is deactivated. For B2B SaaS products, SSO support is often a hard requirement for enterprise sales. This guide explains how SSO works, compares SAML and OIDC, and covers the implementation essentials. How Single Sign-On Works The fundamental idea: rather than each application maintaining its own user database and authentication logic, all applications delegate authentication to a central Identity Provider (IdP). The user authenticates once at the IdP and receives an…
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