Hoffmann, Max, and Christof Paar. “Stealthy Opaque Predicates in Hardware - Obfuscating Constant Expressions at Negligible Overhead”. IACR Transactions on Cryptographic Hardware and Embedded Systems 2018, no. 2 (May 8, 2018): 277–297. Accessed January 15, 2025. https://tosc.iacr.org/index.php/TCHES/article/view/883.