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Impossible differential cryptanalysis of LBlock through breaking down the key space | IEEE Conference Publication | IEEE Xplore

Impossible differential cryptanalysis of LBlock through breaking down the key space


Abstract:

Impossible differential cryptanalysis is a serious threat against block ciphers. In this paper, we represent a new method for impossible differential cryptanalysis of LBl...Show More

Abstract:

Impossible differential cryptanalysis is a serious threat against block ciphers. In this paper, we represent a new method for impossible differential cryptanalysis of LBlock through breaking down the target key space into independent subspaces, and extending the results of searches to the main target key space. We apply the new method on 22 rounds of LBlock. The represented attack requires 263 chosen plaintexts and the time complexity is equivalent to 272.5 encryptions.
Date of Conference: 03-04 September 2014
Date Added to IEEE Xplore: 22 December 2014
ISBN Information:
Conference Location: Tehran, Iran

References

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