SSO is the ability for a user to authenticate once to a single authentication authority and then access other protected resources without reauthenticating.
In order to authenticate, a user shares a set of "credentials" with the authentication authority.
The authentication authority stores its copy of the credentials in a secured database.
A good SSO solution is platform- and/or application-neutral: it hides the authentication implementation details on different operating system platforms from the SSO user and provides support to outsource the application-level authentication logic to a centralized SSO authentication authority.
Initially, the received stego-object and original video object, which we assume that every authentication authority could have locally stored or securely obtained for example, from a central authentication database, are decomposed into two levels with seven subbands using the DWT, (8).
This parallels the situation among InCommon members where institutional identity management and a central university authentication authority is used for all systems within a security domain.
They can say so with some confidence, because there is no single halal authentication body: five different certification authorities exist in the UK alone (and dozens more abroad), each with a different interpretation of what exactly is permissible.
Authentication is delegated to certification authorities (CAs) that issue certificates by cryptographically signing the public key of website owners, guaranteeing the authenticity of the association 〈p u b l i c k e y, w e b s i t e〉 or, in some cases, 〈p u b l i c k e y, w e b s i t e, o r g a n i z a t i o n〉.
AAA: Authentication, Authorization and Accounting.
Token-based authentication can be realized via any of the following methods: Public Key Infrastructure PKI): Identity management systems are capable of accepting digital certificates as software authentication tokens issued by the trusted certification authority (CA).
