Primary definition
An approved cryptographic algorithm as required by FIPS PUB 140-2. TDEA specifies both the DEA cryptographic engine employed by TDEA and the TDEA algorithm itself. Source: NIST SP 800-67 Rev 1 (adapted)
Also known asTriple DES · 3DES · TDES · Triple Data Encryption Standard
1 sources cited4 related termsReviewed Aug 10, 2026
— Committee on National Security Systems Glossary CNSSI 4009-2015View source
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CNSSGC
An approved cryptographic algorithm as required by FIPS PUB 140-2. TDEA specifies both the DEA cryptographic engine employed by TDEA and the TDEA algorithm itself. Source: NIST SP 800-67 Rev 1 (adapted)
Committee on National Security Systems Glossary CNSSI 4009-2015 · 2024
Cite this term
Permanent URL · stable across revisions
Election Security Glossary. (2026). Triple Data Encryption Algorithm (tdea). In Election Security Glossary. Retrieved August 13, 2026, from https://electionsecurityglossary.com/glossary/triple-data-encryption-algorithm-tdea
Sources
1 cited · last checked Aug 10, 2026
01
Committee on National Security Systems Glossary CNSSI 4009-2015
Committee on National Security Systems Glossary CNSSI 4009-2015
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