New related-key rectangle attacks on reduced AES-192 and AES-256

@article{Kim2007NewRR,
  title={New related-key rectangle attacks on reduced AES-192 and AES-256},
  author={Jongsung Kim and Seokhie Hong and Bart Preneel},
  journal={Science in China Series F: Information Sciences},
  year={2007},
  volume={52},
  pages={617-626}
}
In this paper, we examine the security of reduced AES-192 and AES-256 against related-key rectangle attacks by exploiting the weakness in the AES key schedule. We find the following two new attacks: 9-round reduced AES-192 with 4 related keys, and 10-round reduced AES-256 with 4 related keys. Our results show that related-key rectangle attack with 4 related keys on 9-round reduced AES-192 requires a data complexity of about 2101 chosen plaintexts and a time complexity of about 2174.8… CONTINUE READING
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