Welcome to the resource topic for 2015/876
Title:
10-Round Feistel is Indifferentiable from an Ideal Cipher
Authors: Dana Dachman-Soled, Jonathan Katz, Aishwarya Thiruvengadam
Abstract:We revisit the question of constructing an ideal cipher from a random oracle. Coron et al.~(Journal of Cryptology, 2014) proved that a 14-round Feistel network using random, independent, keyed round functions is indifferentiable from an ideal cipher, thus demonstrating the feasibility of such a construction. Left unresolved is the best possible efficiency of the transformation. We improve upon the result of Coron et al.\ and show that 10 rounds suffice.
ePrint: https://eprint.iacr.org/2015/876
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