Triple DES

nouncandidate·updated May 9, 2026

GlossaryL1 — what DictionaryL2 — how used ThesaurusL3 — relations Universaleverything

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.

Framework senses

4 senses across 4 frameworks

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.