Challenge and Reply Authentication

nouncandidate·updated May 9, 2026

Prearranged procedure in which a subject requests authentication of another and the latter establishes validity with a correct reply.

Framework senses

2 senses across 2 frameworks

NISTIR 7298: Glossary of Key Information Security Terms, Revision 21 senseview framework →

§1: Prearranged procedure in which a subject requests authentication of another and the latter establishes validity with a correct reply.

CNSSI-4009 (Glossary of Information Assurance Terms)1 senseview framework →

§1: Prearranged procedure in which a subject requests authentication of another and the latter establishes validity with a correct reply.