Ory is the largest open source community in the world for cloud software application security. We maintain advanced open source security software solving authentication, authorization, access control, application network security, and delegation. Ory implements a variety of industry and best-practice standards including OAuth 2.0 / OAuth 2.1, OpenID Connect, Zero Trust Networking, Google Zanzibar Policy Framework, FIDO2 U2F, WebAuthn, TOTP, and more.

Ory Community

• OAuth 1.0 and 2.0 are protocols for delegating authorization to access a resource
• SSO is any centralized system you can use to log into many things.  OpenID Connect and SAML are the two most common SSO protocols
• OpenID Connect is an SSO protocol based on OAuth 2.0. the user delegates authorization to access their identity information to the site they're logging into.  