(19)

(11)

EP 3 928 476 A1

(12)

(43) Date of publication: 29.12.2021 Bulletin 2021/52 (21) Application number: 19717619.1 (22) Date of filing: 19.02.2019

(51) International Patent Classification (IPC):  H04L 12/28(2006.01) H04L 12/58(2006.01) (52) Cooperative Patent Classification (CPC): H04L 51/02; H04L 12/2818; H04L 12/2836 (86) International application number: PCT/IT2019/000012 (87) International publication number: WO 2020/170276 (27.08.2020 Gazette 2020/35)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (71) Applicant: Freedompro Srl 20092 Cinisello Balsamo (IT)	(72) Inventors: CARTISANO, Simone 20030 Senago (IT) CARTISANO, Stefano Carmelo Cesano Maderno (IT) (74) Representative: Modiano, Micaela Nadia et al Modiano & Partners Via Meravigli, 16 20123 Milano 20123 Milano (IT)