Cryptology ePrint Archive: Report 2014/112

Polynomial Time Attack on Wild McEliece Over Quadratic Extensions

Alain Couvreur and Ayoub Otmani and Jean-Pierre Tillich

Abstract: We present a polynomial time structural attack against the McEliece system based on Wild Goppa codes from a quadratic finite field extension. This attack uses the fact that such codes can be distinguished from random codes to compute some filtration, that is to say a family of nested subcodes which will reveal their secret algebraic description.

Category / Keywords: public-key cryptography / cryptanalysis, code-based cryptography, McEliece, Wild McEliece

Date: received 13 Feb 2014

Contact author: alain couvreur at lix polytechnique fr

Available format(s): PDF | BibTeX Citation

Note: Accepted to EUROCRYPT 2014. Due to space constraints, the results are given here without proofs. They will be included in a forthcoming longer version.

Version: 20140216:154701 (All versions of this report)

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