公开(公告)号：EP4280530A1

公开(公告)日：2023-11-22

申请号：EP23172237.2

申请日：2023-05-09

Applicant: STMicroelectronics S.r.l.

Inventor： VENEROSO, Amedeo ,  PASCARIELLO, Vincenzo ,  TRAMONTANO, Alfonso

IPC: H04L9/00

Abstract: The present disclosure relates to a method comprising :
- the generation, by a computing device (400), of a first key ( K ) and a bootstrapping key ( b k );
- the provision of the first key and an identifier (id) of the bootstrapping key to an electronic device (100) and the provision of the bootstrapping key and the identifier to a server (102);
- the fully homomorphic encryption, by the electronic device, of a first data value, stored in the electronic device, by using the first key; and
- the provision, by the electronic device, of the encrypted first data value ( c 1 , ...,c N ) and of the identifier, to the server.