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Definitions Edit

Strong authentication is

a layered authentication approach relying on two or more authenticators to establish the identity of an originator or receiver of information.[1]
[t]he process of authenticating a user based on at least two of three factors: something you know (i.e., username and password), something you have (i.e., token device), and something you are (i.e., fingerprints).[2]
[a]n authentication process that uses a cryptographic security mechanism — particularly public-key certificates — to verify the identity claimed for an entity.[3]
[a] form of authentication whereby it is very difficult or impossible for a hostile user to successfully intercept and employ a transmitted authenticator (i.e., highly resistant to replay attack).[4]

References Edit

  1. DHS Sensitive Systems Policy Directive 4300A, at 7.
  2. Unified Capabilities, Framework 2013, App. C, at C-46 (full-text).
  3. Internet Security Glossary, at 293.
  4. DCID 6/3, Glossary, App. B.

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