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Definition(s):

A sequence of transformations of the state that is iterated \(Nr\) times in the specifications of CIPHER(), INVCIPHER(), and EQINVCIPHER(). The sequence consists of four transformations, except for one iteration, in which one of the transformations is omitted.
Source(s):
FIPS 197 [NIST FIPS 197-upd1]

Glossary Comments

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See NISTIR 7298 Rev. 3 for additional details.