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Term · 28. International Regulations

FAL FAL

Term from Law
Personal Data NIST Introduced by: Big4 (Deloitte / PwC / EY / KPMG)

Definition

NIST SP 800-63C Federation Assurance Level — measures the strength of federated identity assertions between identity providers and relying parties. FAL1: bearer assertion (signed but unencrypted); FAL2: encrypted bearer assertion; FAL3: holder-of-key assertion (cryptographically bound to the user's authenticator). Federal agencies require FAL2 minimum for cross-agency federation.

Synonyms
  • Federation Assurance Level (NIST)
Discouraged variants
  • **NIST SP 800-63-4** SP-C (Federation)
Application
Regulatory: NIST SP 800-63 (Digital Identity Guidelines)
Standards & regulations
  • NIST
Sources