Bao, Z., Ding, L., Guo, J., Wang, H., & Zhang, W. (2020). Improved Meet-in-the-Middle Preimage Attacks against AES Hashing Modes. IACR Transactions on Symmetric Cryptology, 2019(4), 318–347. https://doi.org/10.13154/tosc.v2019.i4.318-347