Corpus ID: 7677530

Invariant Subspace Attack Against Full Midori64

@article{Guo2015InvariantSA,
  title={Invariant Subspace Attack Against Full Midori64},
  author={Jian Guo and J. Jean and I. Nikolic and Kexin Qiao and Y. Sasaki and Siang Meng Sim},
  journal={IACR Cryptol. ePrint Arch.},
  year={2015},
  volume={2015},
  pages={1189}
}

Jian Guo, J. Jean, +3 authors Siang Meng Sim

Published 2015

Mathematics, Computer Science

IACR Cryptol. ePrint Arch.

In this paper, we present an invariant subspace attack against block cipher Midori64 which has recently been proposed by Banik et al. at Asiacrypt 2015 to achieve low energy consumption. We show that when each nibble of the key has the value 0 or 1 and each nibble of the plaintext has the value 8 or 9, each nibble of the ciphertext also has the value 8 or 9 with probability one regardless of the number of rounds applied. This fact indicates that Midori64 has a class of 2 32 weak keys that can… CONTINUE READING

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