Improved Differential-Linear Attacks with Applications to ARX Ciphers
2020Conference / Journal
Authors
Yosuke Todo Gregor Leander Christof Beierle
Research Hub
Research Hub A: Kryptographie der Zukunft
Research Challenges
RC 1: Cryptography against Mass Surveillance
Abstract
We present several improvements to the framework of differential-linear attacks with a special focus on ARX ciphers. As a demonstration of their impact, we apply them to Chaskey and ChaCha and we are able to significantly improve upon the best attacks published so far.
