User-Based Security
From the perspective of traditional user-based security, the authentication question is, Who is the identity attempting to do the action? An identity is typically a user or group name. Credentials are what the users present to prove who they are. Credentials are evidence presented for verification of identity. A credential might be your password, a smart card, or a biometric device. The users' credentials must be verified with some security authority. An example of this is verification of the user's password against his or her login name based on a database of user names and encrypted passwords. Systems that allow unverified access are said to allow anonymous access. In security lingo, an identity that can be authenticated ...
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