Improved Differential Fault Analysis on CLEFIA

@article{Takahashi2008ImprovedDF,
  title={Improved Differential Fault Analysis on CLEFIA},
  author={Junko Takahashi and Toshinori Fukunaga},
  journal={2008 5th Workshop on Fault Diagnosis and Tolerance in Cryptography},
  year={2008},
  pages={25-34}
}
We propose a more efficient differential fault analysis (DFA) attack on CLEFIA, the 128-bit block cipher developed by Sony Corporation in 2007. In the previous study, the most efficient DFA attack on CLEFIA with a 128-bit key uses approximately 18 pairs of correct and faulty ciphertexts. We develop a new attack method and show that only 2 pairs of correct and faulty ciphertexts are needed to retrieve the 128-bit key. The proposed attack uses a characteristic of the CLEFIA algorithm,a four… CONTINUE READING
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