(Quantum) Collision Attacks on Reduced Simpira v2
Simpira v2 is an AES-based permutation proposed by Gueron and Mouha at ASIACRYPT 2016.In this paper, we build an improved MILP model to count the differential and linear active Sboxes for Simpira v2, Pop! Accessory which achieves tighter bounds of the minimum number of active Sboxes for a few versions of Collecting Supplies Simpira v2.Then, based o