NIST SP 800-63-2

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Title: Electronic Authentication Guideline

Category: Security Control Implementation Guide

Date: 12/1/2011

Creator: NIST


Description: Technical guidelines for Federal agencies implementing electronic authentication. The document lists technical requirements for the four levels assurance defined in OMB M-04-04 in the areas of identity proofing, registration, tokens, management processes, authentication protocols and assertion mechanisms.
Privacy: Advises agencies to reference OMB Guidance for Implementing the Privacy Provisions of the E-Government Act of 2002 [OMB M-03-22]. Subscribers are assumed to trust relying parties to follow "all relevant privacy policy." PII gathered during registration is required to be protected. The document also defines "private credentials", which are credentials that cannot be disclosed without compromising the token (such as symmetric keys). There is discussion of when Relying Parties may operate anonymously, and discussion of how pseudonymity may be achieved.

Security: The document is an information security guideline. The requirements in the document are grouped into four assurance levels that provide increasing levels of trust in the authentication process.

Interoperability: The purpose of the document is to provide sets of requirements for the OMB-04-04 Levels of Assurance. It promotes interoperability by providing a baseline set of requirements for diverse Identity Management systems.

Terms: Active Attack, Address Of Record, Approved, Applicant, Assertion, Assertion Reference, Assurance, Asymmetric Keys, Attack, Attacker, Attribute, Authentication, Authentication Protocol, Authentication Protocol Run, Authentication Secret, Authenticity, Bearer Assertion, Bit, Biometrics, Certificate Authority, Certificate Revocation List, Challenge-response Protocol, Claimant, Claimed Address, Completely Automated Public Turing Test To Tell Computers And Humans Apart, Cookie, Credential, Credential Service Provider, Cross Site Request Forgery, Cross Site Scripting, Cryptographic Key, Cryptographic Token, Data Integrity, Derived Credential, Digital Signature, Eavesdropping Attack, Electronic Authentication(e-authentication), Entropy, Extensible Markup Language, Federal Bridge Certification Authority, Federal Information Security Management Act, Federal Information Processing Standard, Guessing Entropy, Hash Function, Holder-of-key Assertion, Identity, Identity Proofing, Kerberos, Knowledge Based Authentication, Man-in-the-middle Attack, Message Authentication Code, Min-entropy, Multi-factor, Network, Nonce, Off-line Attack, Online Attack, Online Guessing Attack, Passive Attack, Password, Personal Identification Number, Personal Identity Verification Card, Personally Identifiable Information, Pharming, Phishing, Possession And Control Of A Token, Practice Statement, Private Credentials, Private Key, Protected Session, Pseudonym, Public Credentials, Public Key, Public Key Certificate, Public Key Infrastructure, Registration, Registration Authority, Relying Party, Remote, Replay Attack, Risk Assessment, Salt, Secondary Authenticator, Secure Sockets Layer, Security Assertion Markup Language, SAML Authentication Assertion, Session Hijack Attack, Shared Secret, Social Engineering, Special Publication, Strongly Bound Credentials, Subscriber, Symmetric Key, Token, Token Authenticator, Token Secret, Transport Layer Security, Trust Anchor, Unverified Name, Valid, Verified Name, Verifier, Verifier Impersonation Attack, Weakly Bound Credentials, Zeroize