An Improved Method for Evaluating Secret Variables and Its Application to WAGE

ePrint Report: An Improved Method for Evaluating Secret Variables and Its Application to WAGE

Weizhe Wang, Haoyang Wang, Deng Tang

The cube attack is a powerful cryptanalysis technique against symmetric ciphers, especially stream ciphers. The adversary aims to recover secret key bits by solving equations that involve the key. To simplify the equations, a set of plaintexts called a cube is summed up together. Traditional cube attacks use only linear or quadratic superpolies, and the size of cube is limited …

adversary application attack bits ciphers cryptanalysis cube eprint report key recover report secret secret key stream symmetric tang wage wang