Authenticator Assurance Level (AAL)

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:authentication_standard
gptkbp:AAL1_example	gptkb:password
gptkbp:AAL1_requires	single-factor authentication
gptkbp:AAL2_example	password plus OTP
gptkbp:AAL2_requires	multi-factor authentication
gptkbp:AAL3_example	gptkb:hardware_security_key
gptkbp:AAL3_requires	multi-factor authentication with hardware-based authenticator
gptkbp:appliesTo	federal agencies
gptkbp:definedIn	NIST SP 800-63-3
gptkbp:level	gptkb:AAL1 gptkb:AAL2 gptkb:AAL3
gptkbp:partOf	gptkb:NIST_Digital_Identity_Guidelines
gptkbp:publishedBy	gptkb:National_Institute_of_Standards_and_Technology
gptkbp:purpose	to measure authentication strength
gptkbp:relatedTo	gptkb:Federation_Assurance_Level_(FAL) gptkb:Identity_Assurance_Level_(IAL)
gptkbp:usedFor	digital identity authentication
gptkbp:bfsParent	gptkb:NIST_Special_Publication_800-63:_Digital_Identity_Guidelines gptkb:NIST_Digital_Identity_Guidelines gptkb:NIST_SP_800-63 gptkb:NIST_800-63_guidelines gptkb:NIST_Special_Publication_800-63-3:_Digital_Identity_Guidelines gptkb:NIST_Special_Publication_800-63_series
gptkbp:bfsLayer	8
https://www.w3.org/2000/01/rdf-schema#label	Authenticator Assurance Level (AAL)