(19)

(11)

EP 4 445 547 A1

(12)

(43) Date of publication: 16.10.2024 Bulletin 2024/42 (21) Application number: 22830208.9 (22) Date of filing: 05.12.2022

(51) International Patent Classification (IPC):  H04L 9/08(2006.01) (52) Cooperative Patent Classification (CPC): H04L 9/0866; H04L 2209/34; H04L 2209/04; H04L 9/3278; H04L 9/16; H04L 9/088 (86) International application number: PCT/EP2022/084366 (87) International publication number: WO 2023/104694 (15.06.2023 Gazette 2023/24)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 08.12.2021 EP 21306726 (71) Applicant: THALES DIS FRANCE SAS 92190 Meudon (FR)	(72) Inventors: MIGAIROU, Vincent 13530 Trets (FR) BERZATI, Alexandre 13710 Fuveau (FR) TEGLIA, Yannick 13720 Belcodene (FR) MERANDAT, Marc 13590 Meyreuil (FR) (74) Representative: Lotaut, Yacine Diaw  Thales Dis France SAS Intellectual Property Department 6, rue de la Verrerie 92190 Meudon 92190 Meudon (FR)