(19)
(11) EP 4 681 102 A1

(12)

(43) Date of publication:
21.01.2026 Bulletin 2026/04

(21) Application number: 23734914.7

(22) Date of filing: 19.06.2023
(51) International Patent Classification (IPC): 
G06F 21/57(2013.01)
H04L 9/32(2006.01)
 H04L 9/08(2006.01)
(52) Cooperative Patent Classification (CPC):
G06F 21/57; H04L 9/0897; H04L 9/3271
(86) International application number:
PCT/EP2023/066367
(87) International publication number:
WO 2024/260532 (26.12.2024 Gazette 2024/52)
(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

(71) Applicant: Huawei Technologies Co., Ltd.
Shenzhen, Guangdong 518129 (CN)

(72) Inventors:
  • NIEMI, Arto
    16440 Kista (SE)
  • SOVIO, Sampo
    16440 Kista (SE)
  • GINZBOORG, Philip
    16440 Kista (SE)
  • MOUSTAFA, Mariam
    16440 Kista (SE)

(74) Representative: MERH-IP Matias Erny Reichl Hoffmann Patentanwälte PartG mbB 
Paul-Heyse-Straße 29
80336 München
80336 München (DE)

   


(54) APPARATUS AND METHOD FOR REMOTE ATTESTATION USING SYMMETRIC KEYS