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3.1.1 Passwords

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

Passwords

Control changed

Before · SP 800-63B

After · SP 800-63B-4

A password (sometimes referred to as a passphrase or, if numeric, a personal identification number [PIN] ) is a secret value intended to be chosen and either memorized or recorded by the subscriber. Passwords must be of sufficient effective strength and secrecy that it would be impractical for an attacker to guess or otherwise discover the correct secret value. A password is “something you know.”

The requirements in this section apply to centrally verified passwords that are used as independent authentication factors and sent over an authenticated protected channel to the verifier. Passwords used locally as an activation factor for a multi-factor authenticator (e.g., an unlock PIN) are referred to as activation secrets and discussed in Sec. 3.2.10 . In contrast to centrally verified passwords, activation secrets (similar to the unlock passwords or PINs on many devices) are not sent to the verifier and instead used locally to gain access to the authentication secret.

Passwords are not phishing-resistant.