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Forward Cipher

nounid 2638·updated Aug 30, 2026
verified· unreviewed

One of the two functions of the block cipher algorithm that is determined by the choice of a cryptographic key. The term “forward cipher operation” is used for TDEA, while the term “forward transformation” is used for DEA.

MWE

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

Control0%rule-basedmulti_axis_classifier_low_confidence.v1

Sensitivity

50%llm-generatedllm:claude-haiku-4-5

Information Class

unclassified

Variants

plural
Forward Ciphers
possessive
Forward Cipher's
pluralpossessive
Forward Ciphers'

Framework definitions

NISTIR 7298: Glossary of Key Information Security Terms, Revision 21 senseview framework →
§1
One of the two functions of the block cipher algorithm that is determined by the choice of a cryptographic key. The term “forward cipher operation” is used for TDEA, while the term “forward transformation” is used for DEA.
NIST SP 800-671 senseview framework →
§1
One of the two functions of the block cipher algorithm that is determined by the choice of a cryptographic key. The term “forward cipher operation” is used for TDEA, while the term “forward transformation” is used for DEA.
Legacy lexicon import1 senseview framework →
§1 · legacy_primary
One of the two functions of the block cipher algorithm that is determined by the choice of a cryptographic key. The term “forward cipher operation” is used for TDEA, while the term “forward transformation” is used for DEA.
DR-088 backfill from the noun definition column

Outgoing relationships

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Incoming relationships

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