This document provides recommendations on types of authentication processes, including choices of authenticators, that may be used at various Authenticator Assurance Levels (AALs). It also provides recommendations on the lifecycle of authenticators, including revocation in the event of loss or theft.
This technical guideline applies to digital authentication of subjects to systems over a network. It does not address the authentication of a person for physical access (e.g., to a building), though some credentials used for digital access may also be used for physical access authentication. This technical guideline also requires that federal systems and service providers participating in authentication protocols be authenticated to subscribers.
For the full text of the document, click here.