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3.1.2 Look-Up Secrets

NIST PIV and digital identity SP 800-63B-4 against SP 800-63B
All changes in this version
added 3 Authenticator and Verifier Requirements part of 3.1

Title changed

Before · SP 800-63B

After · SP 800-63B-4

Look-Up Secrets

Control changed

Before · SP 800-63B

After · SP 800-63B-4

A look-up secret authenticator is a physical or electronic record that stores a set of secrets shared between the claimant and the CSP. The claimant uses the authenticator to look up the appropriate secrets needed to respond to a prompt from the verifier. For example, the verifier could ask a claimant to provide a specific subset of the numeric or character strings printed on a card in table format. A typical application of look-up secrets is for one-time saved recovery codes (see Sec. 4.2.1.1 ) that the subscriber stores for use if another authenticator is lost or malfunctions. A look-up secret is “something you have.”

Look-up secrets are not phishing-resistant.