Date Published: July 2025
Supersedes:
SP 800-63A (03/02/2020)
Author(s)
David Temoshok (NIST), Christine Abruzzi (Cacapon Cyber Solutions), Yee-Yin Choong (NIST), James Fenton (Altmode Networks), Ryan Galluzzo (NIST), Connie LaSalle (NIST), Naomi Lefkovitz (NIST), Andrew Regenscheid (NIST), Maria Vachino (Calvert Consulting)
This guideline focuses on identity proofing and enrollment for use in digital authentication. During the process of identity proofing, an applicant provides evidence to a credential service provider (CSP) reliably identifying themselves, thereby allowing the CSP to assert that identification at a useful identity assurance level. This document defines technical requirements for each of three identity assurance levels. The guidelines are not intended to constrain the development or use of standards outside of this purpose. This publication supersedes NIST Special Publication (SP) 800-63A.
This guideline focuses on identity proofing and enrollment for use in digital authentication. During the process of identity proofing, an applicant provides evidence to a credential service provider (CSP) reliably identifying themselves, thereby allowing the CSP to assert that identification at a...
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This guideline focuses on identity proofing and enrollment for use in digital authentication. During the process of identity proofing, an applicant provides evidence to a credential service provider (CSP) reliably identifying themselves, thereby allowing the CSP to assert that identification at a useful identity assurance level. This document defines technical requirements for each of three identity assurance levels. The guidelines are not intended to constrain the development or use of standards outside of this purpose. This publication supersedes NIST Special Publication (SP) 800-63A.
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Keywords
authentication; credential service provider; digital authentication; identity proofing; federation
Control Families
None selected
