DATA MINING AND CRYPTOLOGY E.C. LASKARI (1,3)

This paper addresses the issue of mining encrypted data, in order to protect confidential information while permitting knowledge discovery. Common cryptographic algorithms are considered and their robustness against data mining algorithms is evaluated. Having identified robust cryptosystems, data are encrypted and well– known data mining techniques are applied on the encrypted data to produce classification rules which are then compared with those obtained from the initial nonencrypted databases. 1