Which of the following uses tokens between the identity provider and the service provider to authenticate and authorize users to resources?
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A. B. C. D.C.
The technology that uses tokens between the identity provider and the service provider to authenticate and authorize users to resources is OAuth.
OAuth (Open Authorization) is an open standard authorization framework that enables third-party applications to access resources of a user through a token, without requiring the user to disclose their login credentials. OAuth allows a user to grant a third-party application access to their resources on another website, without sharing their credentials, by providing a temporary token. This token allows the application to access the user's resources on the service provider's server.
OAuth works by having the user authenticate with the identity provider (such as Facebook or Google) to gain access to their resources. Once the user is authenticated, the identity provider issues a token that contains the user's identity and any relevant access permissions. This token is then passed to the service provider (such as a mobile app or web application) which uses it to authorize the user to access the requested resources.
OAuth has become a popular way of managing access to cloud-based services and mobile apps, as it allows users to securely and conveniently grant and revoke access to their data without the need to share their login credentials.