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Cryptanalysis of the new TTS scheme in CHES 2004

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Abstract

We combine the method of searching for an invariant subspace of the unbalanced Oil and Vinegar signature scheme and the Minrank method to defeat the new TTS signature scheme, which was suggested for low-cost smart card applications at CHES 2004. We show that the attack complexity is less than 250.

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  1. University of Cincinnati, Cincinnati, 45220, OH, USA

    Jintai Ding, Dieter Schmidt & Zhijun Yin

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  1. Jintai Ding
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  2. Dieter Schmidt
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  3. Zhijun Yin
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Correspondence to Dieter Schmidt.

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Ding, J., Schmidt, D. & Yin, Z. Cryptanalysis of the new TTS scheme in CHES 2004. Int. J. Inf. Secur. 5, 231–240 (2006). https://doi.org/10.1007/s10207-006-0003-9

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