There are currently 3 budgies in this directory beginning with the letter O.
OAuth2 is an authorization standard. It is used to secure interfaces by checking a token for the authorizations of the application and the user.
One-time password (OTP)
An OTP (One-Time Password) is an automatically generated number or alphanumeric string that is used to authenticate a user for a single session. One-time passwords are used as a replacement or addition to the authentication to give the construct an additional layer of security.
OpenID Connect (OIDC)
OpenID Connect (OIDC) is a standard authentication protocol that adds an identification layer to the previous OAuth 2.0 standard. OIDC provides information to the end user in the form of an id token, through which the identity is verified. The standard is controlled by the OpenID Foundation.