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Authenticator

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Definitions Edit

Computer security Edit

An authenticator is

[a] device that provides an internally stored or calculated response to verify a user's identity when logging onto a computer. Only authorized users are likely to both know a unique piece of information (the password) and be in possession of a unique piece of equipment (the authenticator).[1]

E-mail Edit

An authenticator is

[a] symbol or group of symbols, or a series of bits, selected or derived in a prearranged manner and usually inserted at a predetermined point within a message or transmission for the purpose of attesting to the validity of the message or transmission.[2]

Evidence Edit

An authenticator is

evidence presented to support the authentication of a claim. It increases confidence in the truth of the claim.[3]

General Edit

An authenticator is

[t]he means used to confirm the identity of a user, processor, or device (e.g., user password or token).[4]
[a] letter, number or group of letters and/or numbers, attesting to the authenticity of a transmission, a message or data, or to the identity of a net, station or user.[5]

Overview Edit

"A receipt, for example, can act as an authenticator of a claim that an item was purchased at a specific store. A driver's license can act as an authenticator that a particular name (a form of identifier) refers to the individual who carries the license. Knowledge of a secret or the ability to display some distinctive physical characteristic such as a fingerprint can also serve as the authenticators of an individual's name."[6]

References Edit

  1. Bringing Health Care Online: The Role of Information Technologies, at 216.
  2. U.S. Department of Defense, Joint Pub. 1–02: DOD Dictionary of Military and Associated Terms (Nov. 8, 2010, as amended through June 15, 2015) (full-text).
  3. Who Goes There?: Authentication Through the Lens of Privacy, at 20.
  4. NIST Special Publication 800-53, App. B, Glossary.
  5. NATO Standardization Agency, NATO Glossary of Terms and Definitions 2-A-21 (2008) (full-text).
  6. Who Goes There?: Authentication Through the Lens of Privacy, at 20.

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