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1. (WO2019046317) KEY DATA PROCESSING METHOD AND APPARATUS, AND SERVER
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Pub. No.: WO/2019/046317 International Application No.: PCT/US2018/048370
Publication Date: 07.03.2019 International Filing Date: 28.08.2018
IPC:
H04L 9/08 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9
Arrangements for secret or secure communication
06
the encryption apparatus using shift registers or memories for blockwise coding, e.g. D.E.S. systems
08
Key distribution
Applicants:
(N)ALIBABA GROUP HOLDING LIMITED; Fourth Floor, One Capital Place P. O. Box 847 George Town, Grand Cayman, KY
Inventors:
WU, Hao; CN
Agent:
STALFORD, Terry J.; US
MATTSON, Matthew; US
Priority Data:
201710747807.528.08.2017CN
Title (EN) KEY DATA PROCESSING METHOD AND APPARATUS, AND SERVER
(FR) PROCÉDÉ ET APPAREIL DE TRAITEMENT DE DONNÉES DE CLÉ, ET CLIENT
Abstract:
(EN) An original key of a shared object in a blockchain is obtained. The number of parties sharing the original key is determined. The original key are processed by using a predetermined algorithm, to generate the same number of child keys as that of the number of parties sharing the original key, where the child keys are used to restore the original key when the same number of child keys are obtained.
(FR) L'invention se rapporte à l'obtention d'une clé originale d'un objet partagé dans une chaîne de blocs. Le nombre de parties qui partagent la clé originale est déterminé. La clé originale est traitée à l'aide d'un algorithme prédéterminé en vue de générer un nombre de clés filles égal au nombre de parties qui partagent la clé originale, les clés filles étant utilisées pour restaurer la clé originale lorsque le même nombre de clés filles est obtenu.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)