Zhang, Zhendong, and Peng Liu. “A Hybrid-CPU-FPGA-Based Solution to the Recovery of Sha256crypt-Hashed Passwords”. IACR Transactions on Cryptographic Hardware and Embedded Systems 2020, no. 4 (August 26, 2020): 1–23. Accessed March 29, 2024. https://tches.iacr.org/index.php/TCHES/article/view/8675.