(19)

(11)

EP 4 070 488 A1

(12)

(43) Date of publication: 12.10.2022 Bulletin 2022/41 (21) Application number: 20895628.4 (22) Date of filing: 02.12.2020

(51) International Patent Classification (IPC):  H04L(2006.01) (52) Cooperative Patent Classification (CPC): H04L 1/08; H04L 1/02 (86) International application number: PCT/IB2020/061382 (87) International publication number: WO 2021/111329 (10.06.2021 Gazette 2021/23)

(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 (30) Priority: 02.12.2019 US 201916699786 (71) Applicant: Zixi, LLC Waltham, Massachusetts 02451 (US)	(72) Inventors: AVNI, Uri Waltham, Massachusetts 02451 (US) DRORI, Israel Waltham, Massachusetts 02451 (US) (74) Representative: Boult Wade Tennant LLP  Salisbury Square House 8 Salisbury Square London EC4Y 8AP London EC4Y 8AP (GB)