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Quelles courbes elliptiques pour la cryptographie ? - Institut de ...

Quelles courbes elliptiques pour la cryptographie ? - Institut de ...

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Echange <strong>de</strong> clés : Die-Hellman<br />

Soit (G =< g >, +) un groupe cyclique d'ordre N.<br />

Alice<br />

k A aléatoire<br />

h A = k A g<br />

Bob<br />

k B aléatoire<br />

h B = k B g<br />

Christophe Ritzenthaler () <strong>Quelles</strong> <strong>courbes</strong> <strong>elliptiques</strong> <strong>pour</strong> <strong>la</strong> <strong>cryptographie</strong> ? 19 mars 2008 3 / 31

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