Searching for Subspace Trails and Truncated Differentials

Authors

  • Gregor Leander Horst Görtz Institute for IT-Security, Ruhr-Universität Bochum, Bochum, Germany
  • Cihangir Tezcan Horst Görtz Institute for IT-Security, Ruhr-Universität Bochum, Bochum, Germany; Informatics Institute, Department of Cyber Security, CYDES Laboratory, and Department of Mathematics, Middle East Technical University, Ankara, Turkey
  • Friedrich Wiemer Horst Görtz Institute for IT-Security, Ruhr-Universität Bochum, Bochum, Germany

DOI:

https://doi.org/10.13154/tosc.v2018.i1.74-100

Keywords:

Subspace Trail Cryptanalysis, Truncated Differentials, Tools

Abstract

Grassi et al. [Gra+16] introduced subspace trail cryptanalysis as a generalization of invariant subspaces and used it to give the first five round distinguisher for Aes. While it is a generic method, up to now it was only applied to the Aes and Prince. One problem for a broad adoption of the attack is a missing generic analysis algorithm. In this work we provide efficient and generic algorithms that allow to compute the provably best subspace trails for any substitution permutation cipher.

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Published

2018-03-01

Issue

Volume 2018, Issue 1

Section

Articles

License

Copyright (c) 2018 Gregor Leander, Cihangir Tezcan, Friedrich Wiemer

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Searching for Subspace Trails and Truncated Differentials. (2018). IACR Transactions on Symmetric Cryptology, 2018(1), 74-100. https://doi.org/10.13154/tosc.v2018.i1.74-100