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The QARMA Block Cipher Family -- Almost MDS Matrices Over Rings With Zero Divisors, Nearly Symmetric Even-Mansour Constructions With Non-Involutory Central Rounds, and Search Heuristics for Low-Latency S-Boxes
Tweakable Block Ciphers Almost MDS Matrices Even-Mansour Schemes
2016/5/9
We introduce and analyse a family of Almost MDS matrices defined over a ring with zero divisors that allows us to encode rotations in its operation while maintaining the minimal latency associated to ...
From Related-Key Distinguishers to Related-Key-Recovery on Even-Mansour Constructions
Even-Mansour；related-key attacks, Pr┆st-OTR
2016/1/4
We show that a distinguishing attack in the related key model on an EvenMansour
block cipher can readily be converted into an extremely efficient key recovery attack.
Concerned ciphers include in pa...