Indifferentiability of Double Length Compression Functions KU Leuven
Double block length hashing covers the idea of constructing a compression function on 2n bits using an n-bit block cipher. In this work, we present a comprehensive indifferentiability analysis of all relevant double length compression functions. Indifferentiability is a stronger security notion than collision and preimage resistance and ensures that a design has no structural flaws. It is very well suited for composition: using an ...