CS50 ID

CS50 ID is an implementation of OpenID Connect, a "simple identity layer on top of the OAuth 2.0 protocol" that lets you authenticate users via HarvardKey, Princeton CAS, or Yale CAS.

Upon authenticating a user, CS50 ID will return an ID token, among whose keys will be these claims:

• sub, a unique identifier for the user;
• name, the user's full name, if available; and
• email, the user's email address, if available.