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Guidance on the TDEA Block Ciphers



Elaine B. Barker, Larry Feldman, Gregory A. Witte


This bulletin summarizes the information found in NIST SP 800-67, Rev. 2, Recommendation for the Triple Data Encryption Algorithm (TDEA) Block Cipher. This bulletin offers an overview of the TDEA block cipher along with usage guidance and NIST’s plans.
ITL Bulletin -


block cipher, computer security, cryptography, data encryption algorithm, security, triple data encryption algorithm


Barker, E. , Feldman, L. and Witte, G. (2017), Guidance on the TDEA Block Ciphers, ITL Bulletin, National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed May 25, 2024)


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Created November 27, 2017