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Paper: Strong and Tight Security Guarantees against Integral Distinguishers

Authors:
Phil Hebborn , Horst Görtz Institute for IT Security, Ruhr University Bochum, Bochum, Germany
Baptiste Lambin , Horst Görtz Institute for IT Security, Ruhr University Bochum, Bochum, Germany
Gregor Leander , Horst Görtz Institute for IT Security, Ruhr University Bochum, Bochum, Germany
Yosuke Todo , NTT Social Informatics Laboratories, Tokyo, Japan
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DOI: 10.1007/978-3-030-92062-3_13
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Conference: ASIACRYPT 2021
Abstract: Integral attacks belong to the classical attack vectors against any given block ciphers. However, providing arguments that a given cipher is resistant against those attacks is notoriously difficult. In this paper, based solely on the assumption of independent round keys, we develop significantly stronger arguments than what was possible before: our main result is that we show how to argue that the sum of ciphertexts over any possible subset of plaintext is key-dependent, i.e., the non existence of integral distinguishers.
Video from ASIACRYPT 2021
BibTeX
@inproceedings{asiacrypt-2021-31375,
  title={Strong and Tight Security Guarantees against Integral Distinguishers},
  publisher={Springer-Verlag},
  doi={10.1007/978-3-030-92062-3_13},
  author={Phil Hebborn and Baptiste Lambin and Gregor Leander and Yosuke Todo},
  year=2021
}