Dworkin, M.
(2001),
Recommendation for Block Cipher Modes of Operation Methods and Techniques, Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=51031
(Accessed October 24, 2025)
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Recommendation for Block Cipher Modes of Operation Methods and Techniques
Published
Author(s)
Abstract
This recommendation defines five confidentiality modes of operation for use with an underlying symmetric key block cipher algorithm: Electronic Codebook (ECB), Cipher Block Chaining (CBC), Cipher Feedback (CFB), Output Feedback (OFB), and Counter (CTR). Used with an underlying block cipher algorithm that is approved in a Federal Information Processing Standard (FIPS), these modes can provide cryptographic protection for sensitive, but unclassified, computer data.Citation
Special Publication (NIST SP) - 800-38A
Report Number
800-38A
NIST Pub Series
Pub Type
NIST Pubs
Download Paper
Keywords
block cipher, cryptography, encryption, mode of operation
Citation
Issues
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Created December 1, 2001, Updated February 19, 2017