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Improved Cryptanalysis of Reduced-Version QARMA-64/128
2020
IEEE Access
QARMA is a new tweakable block cipher used for memory encryption, the generation of short tags and the construction of the keyed hash functions in future. It adopts a three-round Even-Mansour scheme and supports 64 and 128 bits of block size, denoted by QARMA-64 and QARMA-128, respectively. Their tweak lengths equal the block sizes and their keys are twice as long as the blocks. In this paper, we improve the security analysis of reduced-version QARMA against impossible differential and
doi:10.1109/access.2020.2964259
fatcat:74b6oykv2fdffic6jroyrj6m5e