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نویسندگان
چکیده
We present a method for eecient conversion of diierential (chosen-plaintext) attacks into the more practical known-plaintext and ciphertext-only attacks. Our observation may save up to a factor of 2 20 in data over the known methods, assuming that plaintext is ASCII encoded English (or some other types of highly redundant data). We demonstrate the eeectiveness of our method by practical attacks on several block-ciphers: Madryga, round-reduced versions of RC5 and DES, and on Lucifer.
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