Improved Linear Cryptanalysis of Reduced-Round MIBS

  title={Improved Linear Cryptanalysis of Reduced-Round MIBS},
  author={Asli Bay and Jialin Huang and Serge Vaudenay},
MIBS is a 32-round lightweight block cipher with 64-bit block size and two different key sizes, namely 64-bit and 80-bit keys. Bay et al. provided the first impossible differential, differential and linear cryptanalyses of MIBS. Their best attack was a linear attack on the 18-round MIBS-80. In this paper, we significantly improve their attack by discovering more approximations and mounting Hermelin et al.’s multidimensional linear cryptanalysis. We also use Nguyen et al.’s technique to have… CONTINUE READING
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