Authentication: Packaging and labeling, Provenance, Two-factor authentication, Chip Authentication Program, Closed-loop authentication, Authorization, CAPTCHA, Diameter (protocol)
Frederic P. Miller, Agnes F. Vandome, John McBrewster · Alpha Press eBooks · 2009
Authentication is the act of establishing or confirming something (or someone) as authentic, that is, that claims made by or about the subject are true (authentification is a variant of this word). This might involve confirming the identity of a person, tracing the origins of an artifact, ensuring that a product is what its packaging and labeling claims to be, or assuring that a computer program is a trusted one.