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03.05.04 Replay-Resistant Authentication

NIST SP 800-171 Rev 3 (CUI; CMMC Level 2) OSCAL 1.1.0 against OSCAL 1.1.0
All changes in this version
unchanged 03.05 Identification and Authentication

Title

Replay-Resistant Authentication

Control

Implement replay-resistant authentication mechanisms for access to privileged and non-privileged accounts.

Discussion

Authentication processes resist replay attacks if it is impractical to successfully authenticate by recording or replaying previous authentication messages. Replay-resistant techniques include protocols that use nonces or challenges, such as time synchronous or challenge-response one-time authenticators.

Assessment objective

replay-resistant authentication mechanisms for access to privileged accounts are implemented.