Patent ID: 11947544
Assignee: IDEMIA IDENTITY & SECURITY FRANCE
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. A storage means readable by computer equipment on which a computer program product comprises code instructions for the execution of a method for comparing a first and a second databases to determine whether an individual is represented by both an element of the first database and an element of the second database, wherein said elements are biometric data, comprising the implementation, by data processing means of at least one server, of the steps of:
(a) For each element of each database, applying a classification model so as to construct a set of first bins of the first database and a set of second bins of the second database, each bin bringing together similar elements, each first bin being associated with a second bin;
(b) For at least one pair of an associated first bin and second bin, comparing the elements from the first database belonging to said first bin with the elements from the second database belonging to said second bin, at least one of the first and the second databases then being encrypted homomorphically.