Differential Fault Analysis of Twofish

@inproceedings{Ali2012DifferentialFA,
  title={Differential Fault Analysis of Twofish},
  author={Subidh Ali and Debdeep Mukhopadhyay},
  booktitle={Inscrypt},
  year={2012}
}
In this paper we propose Differential Fault Analysis (DFA) of Twofish which was one of the five AES finalists. It uses the concept of key-dependent S-boxes and Pseudo-Hadamard Transform, which make the cipher secure against differential attack. Each S-box is dependent on key because of which the S-box is not known to the attacker. Therefore, the existing DFA techniques which use the differential properties of Sbox are not directly applicable to Twofish. We propose DFA based on an approximation… CONTINUE READING

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