Correlation Cube Attacks: From Weak-Key Distinguisher to Key Recovery

@article{Liu2018CorrelationCA,
  title={Correlation Cube Attacks: From Weak-Key Distinguisher to Key Recovery},
  author={Meicheng Liu and Jingchun Yang and Wenhao Wang and Dongdai Lin},
  journal={IACR Cryptology ePrint Archive},
  year={2018},
  volume={2018},
  pages={158}
}
In this paper, we describe a new variant of cube attacks called correlation cube attack. The new attack recovers the secret key of a cryptosystem by exploiting conditional correlation properties between the superpoly of a cube and a specific set of low-degree polynomials that we call a basis, which satisfies that the superpoly is a zero constant when all the polynomials in the basis are zeros. We present a detailed procedure of correlation cube attack for the general case, including how to find… CONTINUE READING
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