Elizabeth wants to implement a cloud-based authorization system. Which of the following protocols is she most likely to use for that purpose?

OAuth is a common authorization service used for cloud services. It allows users to decide which websites or applications to entrust their information to without requiring them to give them the user’s password. OpenID is frequently paired with OAuth as the authentication layer. Kerberos is more frequently used for on-site authentication, and SAML is Security Assertion Markup Language.