[Resource Topic] 2017/1210: Two-Face: New Public Key Multivariate Schemes

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Two-Face: New Public Key Multivariate Schemes

Authors: Gilles Macario-Rat, Jacques Patarin


We present here new multivariate schemes that can be seen as HFE generalization having a property called Two-Face'. Particularly, we present five such families of algorithms named Dob’, Simple Pat', General Pat’, Mac', and Super Two-Face’. These families have connections between them, some of them are refinements or generalizations of others. Notably, some of these schemes can be used for public key encryption, and some for public key signature. We introduce also new multivariate quadratic permutations that may have interest beyond cryptography.

ePrint: https://eprint.iacr.org/2017/1210

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