Cryptanalysis of QARMAv2

ePrint Report: Cryptanalysis of QARMAv2

Hosein Hadipour, Yosuke Todo

QARMAv2 is a general-purpose and hardware-oriented family of lightweight tweakable block ciphers (TBCs) introduced in ToSC 2023. QARMAv2, as a redesign of QARMA 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 …

block ciphers control cryptanalysis cryptographic designers eprint report family flow general hardware integrity memory memory protection protection purpose redesign report security todo