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Chiffrement - Webdam Project - Inria

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Attributs numériques<br />

• Partitionner le domaine de variation d’un attribut<br />

– Chaque partition contient un nombre identique de tuples<br />

Connaissance du client<br />

h(1)=17 h(2)=4 h(3)=12 h(4)=3 h(5)=6 h(6)=1 h(7)=9<br />

20 24 31 35 40 48 50 54<br />

Connaissance du serveur<br />

(Age=37)<br />

(Age=53)<br />

(Age=26)<br />

E(R1) 3<br />

E(R2) 9<br />

E(R3) 4<br />

32

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