Advances in Cryptology - ASIACRYPT 2004

@inproceedings{Kittler2004AdvancesIC,
  title={Advances in Cryptology - ASIACRYPT 2004},
  author={Josef Kittler and Moni Naor},
  booktitle={Lecture Notes in Computer Science},
  year={2004}
}
  • J. KittlerM. Naor
  • Published in
    Lecture Notes in Computer…
    2004
  • Computer Science, Mathematics
We study a recently proposed design approach of Feistel ciphers which employs optimal diffusion mappings across multiple rounds. This idea was proposed by Shirai and Shibutani at FSE2004, and the technique enables to improve the immunity against either differential or linear cryptanalysis (but not both). In this paper, we present a theoretical explanation why the new design using three different matrices achieves the better immunity. In addition, we are able to prove conditions to improve the… 

Security Analysis and Implementation of Password-based Cryptosystem

This dissertation would provide a detailed analysis of the proof of security for the SNAPI protocol and explain how to bootstrap a short secret into a secure strong secret.