Cryptanalysis of QARMAv2

Abstract: QARMAv2 is a general-purpose and hardware-oriented family of lightweight tweakable block ciphers (TBCs) introduced in ToSC 2023. QARMAv2, as a redesign of QARMAv1 with a longer tweak and tighter security margins, is also designed to be suitable for cryptographic memory protection and control flow integrity. The designers of QARMAv2 provided a relatively comprehensive security analysis in the design specification, e.g., some bounds for the number of attacked rounds in differential and boomerang analysis, together with some concrete impossible differential, zerocorrelation, and integral distinguishers. As one of the first third-party cryptanalysis of QARMAv2, Hadipour et al., [HGSE24] significantly improved the integral distinguishers of QARMAv2, and provided the longest concrete distinguishers of QARMAv2 up to now. However, they provided no key recovery attack based on their distinguishers. This paper delves into the cryptanalysis of QARMAv2 to enhance our understanding of its secur.... https://tosc.iacr.org/index.php/ToSC/article/view/11406

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Cryptanalysis of QARMAv2 ; volume:2024 ; number:1 ; year:2024 ; IACR transactions on symmetric cryptology ; 2024, Heft 1 (2024)

Contributors, Places and Time

• Creator: Hadipour, Hosein ; Todo, Yosuke

Further information

• DOI: 10.46586/tosc.v2024.i1.188-213
• URN: urn:nbn:de:101:1-2024032017553225056813
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:44 AM CEST