IDENTIFICATION BASED ON ENCRYPTED BIOMETRIC DATA

摘要

A database (10) comprising biometric data stored in encrypted form is managed by a management entity (11). It comprises a set of filters associated respectively with filter identifiers. At the level of a management entity, a biometric data item (b) is received (101); next, said biometric data item is stored in an enciphered form at a given address in the database. Thereafter, key words are obtained on the basis of a first set of hash functions and of the biometric data item. A subset of indexation filters is associated with each keyword by selecting, for each keyword, filters as a function of the respectively associated filter identifiers, of said keywords and of a second set of hash functions; and the given address is associated with each of the filters of the subset of filters.