Security Assertion Markup Language (SAML)

A markup language that defines rules of document formatting and encoding that is both human and machine readable. Designed to enable the use of SGML on the World Wide Web, XML is a regular markup language that defines what you can do (or what you have done) in the way of describing information for a fixed class of documents (like HTML). XML goes beyond this and allows you to define your own customized markup language. It can do this because it is an application profile of SGML. XML is a metalanguage, a language for describing languages.
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A markup language used with federated identity management systems to exchange user information for federated identity single sign-on purposes. It is derived from the Standard Generalized Markup Language (SGML), the Extensible Markup Language (XML), and the Generalized Markup Language (GML).
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<p>A mechanism that allows subjects to authenticate themselves only once to a system. With SSO, once subjects are authenticated, they can freely roam the network and access resources and services without being rechallenged for authentication.</p><p>Federated SSO allows users to use SSO to authenticate once but then be granted access to resources of those other federated organizations with whom they have arrangements.<br></p>
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A markup language used to define access control policies within an XML format, and it commonly implements role- based access controls. It helps provide assurances to all members in a federation that they are granting the same level of access to different roles.
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An alternative to RADIUS. TACACS is available in three versions: original TACACS, XTACACS (extended TACACS), and TACACS+. TACACS integrates the authentication and authorization processes. XTACACS keeps the authentication, authorization, and accounting processes separate. TACACS+ improves XTACACS by adding two-factor authentication.
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