Maximums of the Additive Differential Probability of Exclusive-Or. - Nicky Mouha; Nikolay Kolomeec; Danil Akhtiamov; Ivan Sutormin; Matvey Panferov; Kseniya Titova; Tatiana Bonich; Evgeniya Ishchukova; Natalia N. Tokareva; Bulat Zhantulikov (IACR Trans. Symmetric Cryptol., 2021)