Dong, Xiaoyang, Zheng Li, Xiaoyun Wang, and Ling Qin. “Cube-Like Attack on Round-Reduced Initialization of Ketje Sr”. IACR Transactions on Symmetric Cryptology 2017, no. 1 (March 8, 2017): 259-280. Accessed August 18, 2019. https://tosc.iacr.org/index.php/ToSC/article/view/594.