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3.1.5 Multi-Factor OTPs

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

Multi-Factor OTPs

Control changed

Before · SP 800-63B

After · SP 800-63B-4

A multi-factor OTP generates one-time passwords for authentication following the input of an activation factor. This includes hardware devices and software-based OTP generators that are installed on mobile phones and similar devices. The second authentication factor may be provided through an integral entry pad, an integral biometric (e.g., fingerprint) reader, or a direct computer interface (e.g., universal serial bus [USB] port). The OTP is displayed on the authenticator and manually input for transmission to the verifier. The multi-factor OTP authenticator is “something you have” activated by either “something you know” or “something you are.”

OTP authentication is not phishing-resistant. [FIPS140] validation of OTP authenticators and verifiers is not required.