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Title:
The Distinguishing Attack on HFE
Authors: Joshua Deaton, Jintai Ding
Abstract:Often times, the ability to distinguish between random data and a public key can leads to an attack against the cryptosystem itself. In this paper, we will show experimentally a very efficient distinguisher based on the distribution of ranks of the symmetric matrices associated with the central map in the multivariate cryptosystem HFE when the degree D of the central map is very small.
ePrint: https://eprint.iacr.org/2021/050
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