BaselineWatch
Desk
Your fleet and your work Fleetyour releases and the hardware they run onTriagewhat needs a decisionWatchlistthe products and platforms you runSaved searchesthe lists you come back to
This instance Sourceswhat is read, how often, under what termsDigestthe daily or weekly summary, and alerts
How it is drawn Appearancethe look and the colour schemeBrandingthe mark this instance wears
Owner sign-in

3.3.2.3 Federation Assurance Level

NIST PIV and digital identity SP 800-63-4 against SP 800-63-3
All changes in this version
added 3 Digital Identity Risk Management part of 3.3.2

Title changed

Before · SP 800-63-3

After · SP 800-63-4

Federation Assurance Level

Control changed

Before · SP 800-63-3

After · SP 800-63-4

• FAL1: FAL1 provides a basic level of protection for federation transactions and supports a wide range of use cases and deployment decisions.

• FAL2: FAL2 provides a high level of protection for federation transactions and additional protection against a variety of attacks against federated systems, including attempts to inject assertions into a federated transaction.

• FAL3: FAL3 provides a very high level of protection for federation transactions and establishes very high confidence that the information communicated in the federation transaction matches what was established by the CSP and IdP.

Table 3 describes the control objectives (i.e., attack protections) for each federation assurance level.

Table 3. FAL Summary

FAL Control Objectives User Profile FAL1 Protect against forged assertions. No sensitive personal information is available to any users but some profile or preference data may be retained to support usability or the customization of applications. FAL2 Protect against forged assertions and injection attacks. Users can access personal information and other sensitive data with appropriate authentication assurance levels (e.g., AAL2 or above). FAL3 Protect against IdP compromise. Federation primarily supports attribute exchange. Users have access to classified or highly sensitive information or services that could result in a breach that would constitute a major incident under OMB guidance.