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Understanding the Major Update to NIST SP 800-63: Digital Identity Guidelines



Michael E. Garcia, Paul A. Grassi, Kristina G. Rigopoulos, Larry Feldman, Gregory A. Witte


This bulletin outlines the updates NIST recently made in its four-volume Special Publication (SP) 800-63, Digital Identity Guidelines, which provide agencies with technical guidelines regarding the digital authentication of users to federal networked systems.
ITL Bulletin -


authentication, authentication assurance, authenticator, assertions, credential service provider, digital authentication, digital credentials, identity proofing, federation, passwords, PKI


Garcia, M. , Grassi, P. , Rigopoulos, K. , Feldman, L. and Witte, G. (2017), Understanding the Major Update to NIST SP 800-63: Digital Identity Guidelines, ITL Bulletin, National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed July 24, 2024)


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Created August 29, 2017, Updated January 27, 2020