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What (who) is authentication - definition
ACT OF CONFIRMING THE TRUTH OF AN ATTRIBUTE OF A DATUM OR ENTITY, OFTEN USED AS PART OF ACCESS CONTROL
Authenticate; Authentification; Authentication factor; Authentication factors; Authenticated copy; Forgery detection; AuthN; Authentications; Authenticates; Authenticated; Authenticating; Authn; Client authentication; Server authentication; Service authentication; Product authentication; Single-factor authentication; Continuous authentication
![A [[security hologram]] label on an electronics box for authentication](https://commons.wikimedia.org/wiki/Special:FilePath/GatewayTracingHologramLabel.jpg?width=200 "A [[security hologram]] label on an electronics box for authentication")
![NSA KAL-55B Tactical Authentication System used by the U.S. military during the [[Vietnam War]] – [[National Cryptologic Museum]]](https://commons.wikimedia.org/wiki/Special:FilePath/KAL-55B Tactical Authentication System (Vietnam War era) - National Cryptologic Museum - DSC08013.JPG?width=200 "NSA KAL-55B Tactical Authentication System used by the U.S. military during the [[Vietnam War]] – [[National Cryptologic Museum]]")
 before allowing a driver to enter the gate at U.S. Fleet Activities Sasebo, Japan.jpg?width=200 "A military police officer checks a driver's identification card before allowing her to enter a military base.")
authentication
<security> The verification of the identity of a person or
process. In a communication system, authentication verifies
that messages really come from their stated source, like the
signature on a (paper) letter. The most common form of
authentication is typing a user name (which may be widely
known or easily guessable) and a corresponding password that
is presumed to be known only to the individual being
authenticated. Another form of authentication is
biometrics.
(2007-02-22)
authentication
n.
Verification, attestation, seal, confirmation.
Authentication (law)
LEGAL PROCESS BY WHICH EVIDENCE IS DETERMINED TO BE GENUINE
Authentication, in the law of evidence, is the process by which documentary evidence and other physical evidence is proven to be genuine, and not a forgery. Generally, authentication can be shown in one of two ways.
Wikipedia
Authentication
Authentication (from Greek: αὐθεντικός authentikos, "real, genuine", from αὐθέντης authentes, "author") is the act of proving an assertion, such as the identity of a computer system user. In contrast with identification, the act of indicating a person or thing's identity, authentication is the process of verifying that identity. It might involve validating personal identity documents, verifying the authenticity of a website with a digital certificate, determining the age of an artifact by carbon dating, or ensuring that a product or document is not counterfeit.
Examples of use of authentication
1. The authentication process took just a couple of minutes.
2. The state has 120 days to complete the authentication.
3. But having multiple e–mail authentication programs is causing confusion.
4. "Often there are authentication methods that are less than secure," Logan said.
5. Aladdin also boasts USB–based authentication keys (eToken) for remote user identification on organizational networks.