%0 Journal Article %T Quelques math¨¦matiques de la cryptographie ¨¤ cl¨¦s publiques %A Jean-Marc Couveignes %J Mathematics %D 2007 %I arXiv %X I present examples of mathematical objects that are of interest for public key cryptography. Text for the Journ\'ee Annuelle 2007 of the SMF. %U http://arxiv.org/abs/0706.1874v1