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New results on symmetric quantum cryptanalysis (Keynote speaker)


The security of symmetric cryptography is completely based on cryptanalysis: we only gain confidence in the security of a symmetric primitive through extensive and continuous scrutiny. It is therefore not possible to determine whether a symmetric primitive might be secure or not in a post-quantum world without first understanding how a quantum adversary could attack it. In this talk I will provide an overview of the subject and present some recent results on symmetric quantum cryptanalysis: a new efficient quantum collision search algorithm (joint work with A. Chailloux and A. Schrottenloher), and new efficient quantum algorithms for solving the K-xor problem (joint work with L. Grassi and A. Schrottenloher). We will discuss some implications of these results in quantum-safe symmetric cryptography.
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hal-01953994 , version 1 (14-12-2018)


  • HAL Id : hal-01953994 , version 1


María Naya-Plasencia. New results on symmetric quantum cryptanalysis (Keynote speaker). QUANTALGO Quantum Algorithms and Applications, Sep 2018, Paris, France. ⟨hal-01953994⟩


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