, Volume 15, Issue 1, pp 61-72

A cipher based on data-dependent permutations

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Data-dependent permutations (DDP) are introduced as basic cryptographic primitives to construct fast hardware-oriented ciphers. Some variants of the DDP operations and their application in the cipher CIKS-1 are considered. A feature of CIKS-1 is the use of both the data-dependent transformation of round subkeys and the key-dependent DDP operations.

Communicated by Ernie Brickell
Online publication 29 August 2001
This work was carried out as part of the AFRL Funded Project #1994P which supported the authors.