(19)

(11)

EP 3 997 647 A1

(12)

(43) Date of publication: 18.05.2022 Bulletin 2022/20 (21) Application number: 20753387.8 (22) Date of filing: 07.07.2020

(51) International Patent Classification (IPC):  G06Q 20/20(2012.01) G06Q 20/32(2012.01) (52) Cooperative Patent Classification (CPC): G06Q 20/3678; G06Q 20/367; G06Q 2220/00; G06Q 20/02; H04L 9/3239; H04L 2209/38; H04L 9/3247; H04L 2209/56 (86) International application number: PCT/FI2020/050484 (87) International publication number: WO 2021/005269 (14.01.2021 Gazette 2021/02)

(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: 11.07.2019 FI 20195631 (71) Applicant: NorthCrypto Oy 20100 Turku (FI)	(72) Inventor: RUNOLA, Ville 20100 Turku (FI) (74) Representative: Kolster Oy Ab  Salmisaarenaukio 1 P.O. Box 204 00181 Helsinki 00181 Helsinki (FI)