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Authentication Protocol

nounverified· unreviewed·updated Aug 30, 2026

A defined sequence of messages between a Claimant and a Verifier that demonstrates that the Claimant has possession and control of a valid token to establish his/her identity, and optionally, demonstrates to the Claimant that he or she is communicating with the intended Verifier.

Framework senses

NISTIR 7298: Glossary of Key Information Security Terms, Revision 22 sensesview framework →
§1
A defined sequence of messages between a Claimant and a Verifier that demonstrates that the Claimant has possession and control of a valid token to establish his/her identity, and optionally, demonstrates to the Claimant that he or she is communicating with the intended Verifier.
§2 · sense_2_pending_review
A well-specified message exchange process between a claimant and a verifier that enables the verifier to confirm the claimant’s identity.
CNSSI-4009 (Glossary of Information Assurance Terms)1 senseview framework →
§1
A well-specified message exchange process between a claimant and a verifier that enables the verifier to confirm the claimant’s identity.
NIST SP 800-631 senseview framework →
§1
A defined sequence of messages between a Claimant and a Verifier that demonstrates that the Claimant has possession and control of a valid token to establish his/her identity, and optionally, demonstrates to the Claimant that he or she is communicating with the intended Verifier.
NIST SP 800-171r31 senseview framework →
§1 · attested_usage_pack_match
No definition is given in NIST SP 800-171r3. The term is attested in use at 3 citations in that document; a definition is pending curation.
Increment 2: attested in 800-171r3 without a glossary definition.
Legacy lexicon import1 senseview framework →
§1 · legacy_primary
A defined sequence of messages between a Claimant and a Verifier that demonstrates that the Claimant has possession and control of a valid token to establish his/her identity, and optionally, demonstrates to the Claimant that he or she is communicating with the intended Verifier.
DR-088 backfill from the noun definition column