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Lecture Notes in Computer Science
This paper describes a new differential-style attack, which we call the boomerang attack. This attack has several interesting applications. First, we disprove the oft-repeated claim that eliminating all high-probability differentials for the whole cipher is sufficient to guarantee security against differential attacks. Second, we show how to break COCONUT98, a cipher designed using decorrelation techniques to ensure provable security against differential attacks, with an advanceddoi:10.1007/3-540-48519-8_12 fatcat:hnavmghotnem7i5nqeoazbp4r4