Technical Program

Paper Detail

Time:Tuesday, May 25, 16:54 - 17:12
Presentation: Lecture
Topic: VLSI Systems and Applications: Other Areas in VLSI
Authors: Nikolay Moldovyan; Specialized Center of Program Systems 
 Ma Eremeev; Specialized Center of Program Systems 
 Nicolas Sklavos; University of Patras 
 Odysseas Koufopavlou; University of Patras 
Abstract: This work focuses the problem of further development of the approach to the fast cipher design, based on data-dependent (DD) permutations (DDP). A new class of the DDP-like operations is described. New DD operations (DDO) are constructed replacing the switching element in the DDP boxes by different controlled elements (CE) having the same size. Full classification of CE with two non-linear outputs is presented. Two subclasses of non-linear CE, with the best differential characteristics are recommended for the use in the non-linear DDO-boxes synthesis. The non-linear CE boxes are implemented in FPGA modules using the same hardware resources as switching elements. It is shown that the use of the non-linear DDO, instead of DDP allows one to reduce the number of rounds. With this technique higher Performance/Cost ratio is achieved, while designing fast hardware suitable ciphers.

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