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symmetric key

nounid 4306·updated Aug 30, 2026
verified· unreviewed

A cryptographic key that is used to perform both the cryptographic operation and its inverse, for example to encrypt and decrypt, or create a message authentication code and to verify the code.

polysemousMWE

Attested in

No recorded attestations. They are written when an MWE tagging stage is completed, stamped with the pack version and the document’s digest.

Classifications

Entity Type

Credential0%rule-basedmulti_axis_classifier_low_confidence.v1

Sensitivity

Restricted85%llm-generatedllm:claude-haiku-4-5

Information Class

Cui78%llm-generatedllm:claude-haiku-4-5

Variants

plural
symmetric keys
possessive
symmetric key's
pluralpossessive
symmetric keys'

Framework definitions

SANS Glossary of Security Terms1 senseview framework →
§1
A cryptographic key that is used in a symmetric cryptographic algorithm.
National Initiative for Cybersecurity Careers and Studies (NICCS) Cybersecurity Lexicon1 senseview framework →
§1 · extended_definition_available
A cryptographic key that is used to perform both the cryptographic operation and its inverse, for example to encrypt plaintext and decrypt ciphertext, or create a message authentication code and to verify the code.
NISTIR 7298: Glossary of Key Information Security Terms, Revision 22 sensesview framework →
§1
A cryptographic key that is used to perform both the cryptographic operation and its inverse, for example to encrypt and decrypt, or create a message authentication code and to verify the code.
§2 · sense_2_pending_review
A single cryptographic key that is used with a secret (symmetric) key algorithm.
CNSSI-4009 (Glossary of Information Assurance Terms)1 senseview framework →
§1
A cryptographic key that is used to perform both the cryptographic operation and its inverse, for example to encrypt and decrypt, or create a message authentication code and to verify the code.
NIST SP 800-631 senseview framework →
§1
A cryptographic key that is used to perform both the cryptographic operation and its inverse, for example to encrypt and decrypt, or create a message authentication code and to verify the code.
NIST SP 800-21 [2nd Edition]1 senseview framework →
§1
A single cryptographic key that is used with a secret (symmetric) key algorithm.
Legacy lexicon import1 senseview framework →
§1 · legacy_primary
A cryptographic key that is used to perform both the cryptographic operation and its inverse, for example to encrypt and decrypt, or create a message authentication code and to verify the code.
DR-088 backfill from the noun definition column

Outgoing relationships

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Incoming relationships

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