MISTY1 · KASUMI · Related-Key
Run MISTY1 and KASUMI side by side, inspect the parts changed for cellular hardware, and execute the seven-round distinguisher those changes enabled.
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MISTY1 was designed so its nested structure supported lower bounds against linear and differential cryptanalysis. KASUMI adapted that design for cellular hardware, keeping eight rounds while changing the key schedule and inner functions. This lab shows why those are not interchangeable claims.