Paper 2024/230

Analysis of Layered ROLLO-I

Seongtaek Chee, Electronics and Telecommunications Research Institute
Kyung Chul Jeong, Electronics and Telecommunications Research Institute
Tanja Lange, Eindhoven University of Technology
Nari Lee, Electronics and Telecommunications Research Institute
Alex Pellegrini, Eindhoven University of Technology
Hansol Ryu, Electronics and Telecommunications Research Institute
Abstract

We analyse Layered ROLLO-I, a code-based cryptosystem submitted to the Korean post quantum cryptography competition, of which four versions have been proposed. We show that the first two versions do not provide the claimed security against rank decoding attacks and give reductions to small instances of ROLLO-I for which such attacks are even more effective. Finally, we provide two efficient message recovery attacks, affecting every security level of the first three versions of Layered ROLLO-I and security levels 128 and 192 of the fourth version.

Metadata
Available format(s)
PDF
Category
Attacks and cryptanalysis
Publication info
Preprint.
Keywords
Post-quantum cryptographyCode-based cryptographyRank-metric codeLayered ROLLO-IBII-LRPC code
Contact author(s)
chee @ nsr re kr
jeongkc @ nsr re kr
tanja @ hyperelliptic org
narilee @ nsr re kr
alex pellegrini @ live com
hansolryu @ nsr re kr
History
2024-02-16: approved
2024-02-14: received
See all versions
Short URL
https://ia.cr/2024/230
License
No rights reserved
CC0

BibTeX

@misc{cryptoeprint:2024/230,
      author = {Seongtaek Chee and Kyung Chul Jeong and Tanja Lange and Nari Lee and Alex Pellegrini and Hansol Ryu},
      title = {Analysis of Layered ROLLO-I},
      howpublished = {Cryptology ePrint Archive, Paper 2024/230},
      year = {2024},
      note = {\url{https://eprint.iacr.org/2024/230}},
      url = {https://eprint.iacr.org/2024/230}
}
Note: In order to protect the privacy of readers, eprint.iacr.org does not use cookies or embedded third party content.