Resource Digital Identity

NIST Digital Identity Guidelines: Special Publication 800-63, Revision 3

These guidelines from the National Institutes of Standard and Technology provide technical requirements for federal agencies implementing digital identity services.

Organization: National Institute of Standards and Technology (NIST)

Authors: Paul A. Grassi, James L. Fenton, Elaine M. Newton, Ray A. Perlner, Andrew R. Regenscheid, William E. Burr, Justin P. Richer, Naomi B. Lefkowitz, Jamie M. Danker, Yee-Yin Choong, Kristen K. Greene, Mary F. Theofanos

Published Year: 2017

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NIST Special Publication 800-63-3 outlines technical requirements and guidelines for federal agencies to implement digital identity services, focusing on identity proofing, authentication, and federation for secure access to government IT systems.

It introduces three separate assurance levels—Identity Assurance Level (IAL), Authenticator Assurance Level (AAL), and Federation Assurance Level (FAL)—allowing agencies to tailor identity and authentication processes based on risk assessments, thereby enhancing flexibility and privacy.