Wahby, Riad S., and Dan Boneh. “Fast and Simple Constant-Time Hashing to the BLS12-381 Elliptic Curve”. IACR Transactions on Cryptographic Hardware and Embedded Systems 2019, no. 4 (August 9, 2019): 154-179. Accessed December 14, 2019. https://tches.iacr.org/index.php/TCHES/article/view/8348.