Introduction to OIDC/OAuth 2.0
  • 03 Jul 2025
  • 1 Minute to read
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Introduction to OIDC/OAuth 2.0

  • PDF

Article summary

OIDC/OAuth 2.0

OAuth 2.0 and OpenID Connect (OIDC) are open standards used in modern authentication and authorization systems. OAuth 2.0 is used for authorization. OIDC extends OAuth 2.0 to include authentication—verifying who the user is.

OAuth 2.0 lets you give an app permission to access certain parts of your data (like your calendar or contacts) without sharing your password. For example, when you connect a new app to your Google account and it asks for permission to see your emails or files, that’s OAuth 2.0 at work. OpenID Connect (OIDC) works with OAuth 2.0 and adds something extra: it helps apps confirm who you are. This feature allows you to log in to different websites using your Google, Microsoft, or Facebook account.

Together, OAuth 2.0 and OIDC make logging in easier and safer, while giving you control over what information you share and with whom.

With Scalefusion’s Single Sign-On (SSO), you can leverage OIDC and OAuth 2.0 to provide seamless access to multiple services, enhancing both security and the overall user experience. Currently, Scalefusion supports this integration with Apple Business Manager, Apple School Manager, and 1Password for Business.


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