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The Central Authentication Service (CAS) is a single sign-on protocol for the web. [1] Its purpose is to permit a user to access multiple applications while providing their credentials (such as user ID and password) only once. It also allows web applications to authenticate users without gaining access to a user's security credentials, such as ...
CAS / Central Authentication Service: Apereo: Free & Open Source Protocol and open-source SSO server/client implementation with support for CAS, SAML1, SAML2, OAuth2 ...
SAML-based products and services. Security Assertion Markup Language (SAML) is a set of specifications that encompasses the XML -format for security tokens containing assertions to pass information about a user and protocols and profiles to implement authentication and authorization scenarios. This article has a focus on software and services ...
When a secure signature creation device is used as part of a central authentication service (CAS), it may act as a CAS server in multi-tier authentication scenarios. The CAS software protocol allows users to be authenticated when signing into a web application. The common scheme for a CAS protocol includes the client’s web browser, an ...
The service provider, wishing to know the identity of the user, issues an authentication request to a SAML identity provider through the user agent. The identity provider is the one that provides the user credentials. The service provider trusts the user information from the identity provider to provide access to its services or resources.
In Line 2, the CAS checks if the request is valid for obtaining an authentication token. If so, it generates a token and communicates a Success message containing the token to both Client and Service (Lines 3–5). Otherwise, the CAS informs Client and Service that authentication failed, by sending a Failure message (Lines 7–8). We refer to ...
There are implementations of the Central Authentication Service concept that include Kerberos dating back to 1985 and DAP (with successors LDAP and Active Directory) dating back to 1988. There is Apereo's 2005 CAS Protocol implementation of the concept. And there is Apereo's software product called CAS that uses the protocol.
TACACS. Terminal Access Controller Access-Control System (TACACS, / ˈtækæks /) refers to a family of related protocols handling remote authentication and related services for network access control through a centralized server. The original TACACS protocol, which dates back to 1984, was used for communicating with an authentication server ...
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