On the Diffusion of Generalized Feistel Structures Regarding Differential and Linear Cryptanalysis

@inproceedings{Shibutani2010OnTD,
  title={On the Diffusion of Generalized Feistel Structures Regarding Differential and Linear Cryptanalysis},
  author={Kyoji Shibutani},
  booktitle={Selected Areas in Cryptography},
  year={2010}
}
This paper studies the security of blockciphers with generalized Feistel structures (GFS) consisting of SP-type F-functions. While GFS leads to compact implementations, the security is not well understood, in particular for larger values of the partitioning number which indicates the number of subblocks. For both differential and linear cryptanalysis, we first prove tighter lower bounds on the minimum number of active S-boxes for four and six rounds of the GFS utilizing word-based rotation as a… CONTINUE READING
16 Citations
18 References
Similar Papers

Citations

Publications citing this paper.
Showing 1-10 of 16 extracted citations

Similar Papers

Loading similar papers…