Tim Beyne

I am a postdoctoral researcher at KU Leuven, in the COSIC group. I defended my PhD thesis `A geometric approach to symmetric-key cryptanalysis’ in June 2023. My promotor was Vincent Rijmen. Contact information:

• name.lastname@esat.kuleuven.be
• Public key for PGP.

Resources related to my publications under 'information-theoretical cryptography':

• Information-theoretic security with asymmetries [doi] [eprint]
  Tim Beyne and Yu Long Chen
  Crypto 2024


• Multidimensional linear cryptanalysis of Feistel ciphers [doi]
  Betül Aşkın Özdemir, Tim Beyne and Vincent Rijmen
  IACR Transactions on Symmetric Cryptology 2023


• A geometric approach to symmetric-key cryptanalysis [pdf]
  Tim Beyne
  PhD thesis


• Provably secure reflection ciphers [doi] [eprint]
  Tim Beyne and Yu Long Chen
  Crypto 2022


• Truncated differential attacks on contracting Feistel ciphers [doi] [code]
  Tim Beyne and Yunwen Liu
  IACR Transactions on Symmetric Cryptology 2022


• Multi-user security of the Elephant v2 authenticated encryption mode [doi]
  Tim Beyne, Yu Long Chen, Christoph Dobraunig and Bart Mennink
  SAC 2021


• Linear cryptanalysis of FF3-1 and FEA [doi] [eprint] [supplements]
  Tim Beyne
  Crypto 2021 (early career researcher award and honorable mention best paper)


• Dumbo, Jumbo and Delirium: parallel authenticated encryption for the lightweight circus [doi]
  Tim Beyne, Yu Long Chen, Christoph Dobraunig and Bart Mennink
  IACR Transactions on Symmetric Cryptology 2020


• Elephant [pdf]
  Tim Beyne, Yu Long Chen, Christoph Dobraunig and Bart Mennink
  Submission to the NIST lightweight cryptography project (finalist)