Inverse Cipher Operation/Inverse Transformation

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Definition(s):

The block cipher algorithm function that is the inverse of the forward cipher function. The term “inverse cipher operation” is used for TDEA, while the term “inverse transformation” is used for DEA.
Source(s):
NIST SP 800-67 Rev. 2
NIST SP 800-67 Rev. 1 [Superseded]

Glossary Comments

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See NISTIR 7298 Rev. 3 for additional details.

Information Technology Laboratory

Computer Security Resource Center

Computer Security Resource Center

Inverse Cipher Operation/Inverse Transformation

Glossary Comments