Key Recovery Attack Against 2.5-Round $pi $-Cipher

Lecture Notes in Computer Science, pp. 535-553, 2016.

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Abstract:

In this paper, we propose a guess and determine attack against some variants of the p-Cipher family of authenticated ciphers. This family of ciphers is a second-round candidate of the CAESAR competition. More precisely, we show a key recovery attack with time complexity little higher than 2(4 omega), and low data complexity, against varia...More

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