On the Failure of the Smart Approach of the GPT Cryptosystem

10/28/2020

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by   Hervé Talé Kalachi, et al.

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This paper describes a new algorithm for breaking the smart approach of the GPT cryptosystem. We show that by puncturing the public code several times on specific positions, we get a public code on which applying the Frobenius operator appropriately allows to build an alternative secret key.