Sim, S. M., D. Jap, and S. Bhasin. “DAPA: Differential Analysis Aided Power Attack on (Non-) Linear Feedback Shift Registers”. IACR Transactions on Cryptographic Hardware and Embedded Systems, Vol. 2021, no. 1, Dec. 2020, pp. 169-91, doi:10.46586/tches.v2021.i1.169-191.