e-authentication assurance level

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Definitions:

A measure of trust or confidence in an authentication mechanism defined in publications Office of Management and Budget (OMB)-04-04 and NIST SP 800-63 in terms of four levels: 1: LITTLE OR NO confidence 2: SOME confidence 3: HIGH confidence 4: VERY HIGH confidence.
Sources:
NIST SP 1800-12b

Glossary Comments

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See NISTIR 7298 Rev. 3 for additional details.