International Journal of Distributed Sensor Networks (Jan 2014)

Related-Key Cryptanalysis on the Full PRINTcipher Suitable for IC-Printing

  • Yuseop Lee,
  • Kitae Jeong,
  • Changhoon Lee,
  • Jaechul Sung,
  • Seokhie Hong

DOI
https://doi.org/10.1155/2014/389476
Journal volume & issue
Vol. 10

Abstract

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PRINTcipher-48/96 are 48/96-bit block ciphers proposed in CHES 2010 which support the 80/160-bit secret keys, respectively. In this paper, we propose related-key cryptanalysis of PRINTcipher. To recover the 80-bit secret key of PRINTcipher-48, our attack requires 2 47 related-key chosen plaintexts with a computational complexity of 2 60 · 62 . In the case of PRINTcipher-96, we require 2 95 related-key chosen plaintexts with a computational complexity of 2 107 . These results are the first known related-key cryptanalytic results on them.