1. eSTREAM: the ECRYPT stream cipher project (2018). https://www.ecrypt.eu.org/stream/. Accessed 23 Mar 2021
2. Gorubi Optimization. https://www.gurobi.com
3. Gorubi Optimization Reference Manual. https://www.gurobi.com/wp-content/plugins/hd_documentations/documentation/9.1/refman.pdf
4. ISO/IEC 29192-3:2012: Information technology - Security techniques - Lightweight cryptography - part 3: Stream ciphers. https://www.iso.org/standard/56426.html
5. Ågren, M., Hell, M., Johansson, T., Meier, W.: Grain-128a: a new version of Grain-128 with optional authentication. Int. J. Wirel. Mob. Comput. 5(1), 48–59 (2011)