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- In cryptography, higher-order differential cryptanalysis is a generalization of differential cryptanalysis, an attack used against block ciphers. While in standard differential cryptanalysis the difference between only two texts is used, higher-order differential cryptanalysis studies the propagation of a set of differences between a larger set of texts. Xuejia Lai, in 1994, laid the groundwork by showing that differentials are a special case of the more general case of higher order derivates. Lars Knudsen, in the same year, was able to show how the concept of higher order derivatives can be used to mount attacks on block ciphers. These attacks can be superior to standard differential cryptanalysis. Higher-order differential cryptanalysis has notably been used to break the KN-Cipher, a cipher which had previously been proved to be immune against standard differential cryptanalysis. (en)
- 高階差分解読法 (こうかいさぶんかいどくほう、Higher order differntial cryptanalysis)は、差分解読法を一般化したブロック暗号に対する攻撃である。1994年にen:Lars Knudsenによって多くの暗号に応用可能な手法として発表された。 通常の差分解読法は二つの平文暗号文組の差分を解析するが、高階差分解読法は、差分同士の差分を解析する。場合によっては通常の差分攻撃法よりも効率が良いことがある(en:KN-Cipherを参照)。 (ja)
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- 高階差分解読法 (こうかいさぶんかいどくほう、Higher order differntial cryptanalysis)は、差分解読法を一般化したブロック暗号に対する攻撃である。1994年にen:Lars Knudsenによって多くの暗号に応用可能な手法として発表された。 通常の差分解読法は二つの平文暗号文組の差分を解析するが、高階差分解読法は、差分同士の差分を解析する。場合によっては通常の差分攻撃法よりも効率が良いことがある(en:KN-Cipherを参照)。 (ja)
- In cryptography, higher-order differential cryptanalysis is a generalization of differential cryptanalysis, an attack used against block ciphers. While in standard differential cryptanalysis the difference between only two texts is used, higher-order differential cryptanalysis studies the propagation of a set of differences between a larger set of texts. Xuejia Lai, in 1994, laid the groundwork by showing that differentials are a special case of the more general case of higher order derivates. Lars Knudsen, in the same year, was able to show how the concept of higher order derivatives can be used to mount attacks on block ciphers. These attacks can be superior to standard differential cryptanalysis. Higher-order differential cryptanalysis has notably been used to break the KN-Cipher, a cip (en)
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- Higher-order differential cryptanalysis (en)
- 高階差分解読法 (ja)
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