7 papers
The second-order zero differential uniformity of the swapped inverse functions over finite fields
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
The Feistel Boomerang Connectivity Table (FBCT) was proposed as the feistel counterpart of the Boomerang Connectivity Table. The entries of the FBCT are actually related to the sec…
On the Functions Which are CCZ-equivalent but not EA-equivalent to Quadratic Functions over
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
For a given function from to itself, determining whether there exists a function which is CCZ-equivalent but EA-inequivalent to is a very important and in…
cc-differential uniformity, (almost) perfect cc-nonlinearity, and equivalences
Nhan-Phu Chung, Jaeseong Jeong, Namhun Koo +1
In this article, we introduce new notions -differential uniformity, -differential spectrum, PccN functions and APccN functions, and investigate their properties. We also in…
On non-monomial APcN permutations over finite fields of even characteristic
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
Recently, a new concept called the -differential uniformity was proposed by Ellingsen et al. (2020), which allows to simplify some types of differential cryptanalysis. Since the…
Low c-Differential Uniformity of the Swapped Inverse Function in Odd Characteristic
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
The study of Boolean functions with low -differential uniformity has become recently an important topic of research. However, in odd characteristic case, there are not many resu…
Investigations of c-Differential Uniformity of Permutations with Carlitz Rank 3
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
The -differential uniformity is recently proposed to reflect resistance against some variants of differential attack. Finding functions with low -differential uniformity is a…