Latest revision as of 00:24, 20 January 2026

E-authentication assurance level

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.

Source: NIST SP 1800-12b | Category:

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