Welcome to the resource topic for 2010/143
Title:
Small Scale Variants Of The Block Cipher PRESENT
Authors: Gregor Leander
Abstract:In this note we de¯ne small scale variants of the block cipher present [1]. The main reason for this is that the running time of some recent attacks (e.g. [2, 3]) remain unclear as they are based on heuristics that are hard or even impossible to verify in practice. Those attacks usually require the full code bock of present to be available and they work only if some independence assumptions hold in practice. While those assumptions are clearly wrong from a theoretical point of view, the impact on the running times of the attacks in question is not clear. With versions of present with smaller block size it might be possible to verify how those attacks scale for those versions and hopefully learn something about present itself.
ePrint: https://eprint.iacr.org/2010/143
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