Final answer:
Single sign-on (SSO) is sometimes used for single sign-on but is not a shared authentication technology. OAuth is an open standard for authorization that is commonly associated with SSO.
Step-by-step explanation:
Single sign-on (SSO) is sometimes used for single sign-on but is not a shared authentication technology. SSO allows users to access multiple applications or websites using only one set of credentials. While SSO can be implemented using various technologies, one such technology that is commonly associated with SSO is OAuth.
OAuth is an open standard for authorization that allows users to grant third-party applications access to their information on another website, without requiring the disclosure of their credentials. With OAuth, users can sign in to one application or website and seamlessly access other applications and websites without the need for additional authentication.
It is important to note that OAuth is not a shared authentication technology in the sense that it does not directly authenticate users. Instead, it provides a mechanism for authorization and allows users to grant access to their information.