Knowledge-Based Authentication

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Abbreviation(s) and Synonym(s):

Definition(s):

Authentication of an individual based on knowledge of information associated with his or her claimed identity in public databases. Knowledge of such information is considered to be private rather than secret, because it may be used in contexts other than authentication to a Verifier, thereby reducing the overall assurance associated with the authentication process.
Source(s):
NIST SP 800-63-2 under Knowledge Based Authentication [Superseded]

Glossary Comments

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See NISTIR 7298 Rev. 3 for additional details.

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Knowledge-Based Authentication

Glossary Comments