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Triple DES

nounid 4488·updated May 9, 2026
candidate

An implementation of the Data Encryption Standard (DES) algorithm that uses three passes of the DES algorithm instead of one as used in ordinary DES applications. Triple DES provides much stronger encryption than ordinary DES but it is less secure than AES.

MWE

Classifications

Entity Type

Control85%llm-generatedllm:claude-haiku-4-5

Sensitivity

unclassified

Information Class

unclassified

Variants

acronym
3DES
plural
Triple DESES
possessive
Triple DES's
pluralpossessive
Triple DESES'

Framework definitions

SANS Glossary of Security Terms1 senseview framework →
§1
A block cipher, based on DES, that transforms each 64-bit plaintext block by applying the Data Encryption Algorithm three successive times, using either two or three different keys, for an effective key length of 112 or 168 bits.
ISACA Cybersecurity Glossary1 senseview framework →
§1
A block cipher created from the Data Encryption Standard (DES) cipher by using it three times
NISTIR 7298: Glossary of Key Information Security Terms, Revision 21 senseview framework →
§1
An implementation of the Data Encryption Standard (DES) algorithm that uses three passes of the DES algorithm instead of one as used in ordinary DES applications. Triple DES provides much stronger encryption than ordinary DES but it is less secure than AES.
CNSSI-4009 (Glossary of Information Assurance Terms)1 senseview framework →
§1
An implementation of the Data Encryption Standard (DES) algorithm that uses three passes of the DES algorithm instead of one as used in ordinary DES applications. Triple DES provides much stronger encryption than ordinary DES but it is less secure than AES.

Outgoing relationships

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Incoming relationships

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