@article{Goubin_Rivain_Wang_2020, title={Defeating State-of-the-Art White-Box Countermeasures with Advanced Gray-Box Attacks}, volume={2020}, url={https://tches.iacr.org/index.php/TCHES/article/view/8597}, DOI={10.13154/tches.v2020.i3.454-482}, abstractNote={<p>The goal of white-box cryptography is to protect secret keys embedded in a cryptographic software deployed in an untrusted environment. In this article, we revisit state-of-the-art countermeasures employed in white-box cryptography, and we discuss possible ways to combine them. Then we analyze the different gray-box attack paths and study their performances in terms of required traces and computation time. Afterward, we propose a new paradigm for the gray-box attack against white-box cryptography, which exploits the data-dependency of the target implementation. We demonstrate that our approach provides substantial complexity improvements over the existing attacks. Finally, we showcase this new technique by breaking the three winning AES-128 white-box implementations from WhibOx 2019 white-box cryptography competition.</p>}, number={3}, journal={IACR Transactions on Cryptographic Hardware and Embedded Systems}, author={Goubin, Louis and Rivain, Matthieu and Wang, Junwei}, year={2020}, month={Jun.}, pages={454–482} }