Related-key rectangle cryptanalysis of Rijndael-160 and Rijndael-192
نویسندگان
چکیده
In this paper we present the first related-key rectangle cryptanalysis of Rijndael-160/160 and Rijndael-192/192. Our attack on Rijndael-160/160 covers eight rounds. The attack complexities are 2 chosen plaintexts, 2 8-round Rijndael-160/160 encryptions and 2 bytes. Our attack on Rijndael-192/192 covers ten rounds. It requires 2 chosen plaintexts, 2 10-round Rijndael192/192 encryptions and 2 bytes memory. These are the currently best cryptanalytic results on Rijndael-160/160 and Rijndael-192/192 in terms of the number of attacked rounds. Furthermore, our results show that the slow diffusion in the key schedule of Rijndael makes it a target for this type of analysis.
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ورودعنوان ژورنال:
- IET Information Security
دوره 9 شماره
صفحات -
تاریخ انتشار 2015