Fabrice Boudot, P. Gaudry, A. Guillevic, Nadia Heninger, Emmanuel Thomé, P. Zimmermann
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Nouveaux records de factorisation et de calcul de logarithme discret
This article describes two new records established at the end of 2019 : an integer factorization record for the factorization of RSA-240, and a discrete logarithm record of the same size. These two records correspond to 795-bit numbers, or 240 decimal digits, and were established with the same open-source CADO-NFS software, on the same type of processors. These records serve as a reference for key size recommendations for cryptographic protocols.
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