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Weak keys in the McEliece public-key cryptosystem

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2 Author(s)
Loidreau, P. ; Inst. Nat. de Recherche en Inf. et Autom., Le Chesnay, France ; Sendrier, N.

We show that it is possible to know whether the secret Goppa code of an instance of the McEliece public-key cryptosystem was chosen with a binary generator polynomial. Furthermore, whenever such a weak key is used, we present an attack which can be completed, for codes of length 1024 and dimension 524, with a large, but feasible amount of computation

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Information Theory, IEEE Transactions on  (Volume:47 ,  Issue: 3 )