This whitepaper details methods for Achieving National Institute of Standards and Technology (NIST) Authenticator Assurance Levels (AALs) using the Microsoft Identity Platform. These standards are found in NIST Special Publication 800-63B: Authentication and Lifecycle Management.
It is intended for architects and other decision makers who want to determine the appropriate AAL for their organization and provides guidance on how to achieve the chosen level. AALs are one part of the overall NIST Special Publication 800-63: Digital Identity Guidelines. We encourage you to consume the overall NIST guidelines to understand how AALs fit in.