Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2019045741) SINGLE NODE MULTI-PARTY ENCRYPTION
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/045741 International Application No.: PCT/US2017/049722
Publication Date: 07.03.2019 International Filing Date: 31.08.2017
IPC:
H04L 9/08 (2006.01) ,H04L 9/14 (2006.01) ,G06F 21/60 (2013.01)
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
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9
Arrangements for secret or secure communication
14
using a plurality of keys or algorithms
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
21
Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
60
Protecting data
Applicants:
VISA INTERNATIONAL SERVICE ASSOCIATION [US/US]; P.O. Box 8999 San Francisco, California 94128-8999, US
Inventors:
GRYB, Oleg; US
NAGASUNDARAM, Sekhar; US
Agent:
JEWIK, Patrick; US
BAKER, Amanda; US
TSE, Michael; US
PATTERSON, Melissa; US
Priority Data:
Title (EN) SINGLE NODE MULTI-PARTY ENCRYPTION
(FR) CHIFFREMENT MULTIPARTITE SUR NŒUD UNIQUE
Abstract:
(EN) A computer node comprising multiple software modules may receive a cryptographic key from a hardware security module. The computer node may use the cryptographic key to produce two key portions, which are distributed to two software modules. These software modules and an optional additional software module may use the key portions in order to encrypt an initial message. The key portions and their locations in memory are periodically updated in order to provide improved cryptographic security.
(FR) Un nœud informatique comportant des modules logiciels multiples peut recevoir une clé cryptographique en provenance d'un module matériel de sécurité. Le nœud informatique peut utiliser la clé cryptographique pour produire deux parties de clé, qui sont distribuées à deux modules logiciels. Ces modules logiciels et un module logiciel supplémentaire optionnel peuvent utiliser les parties de clé afin de chiffrer un message initial. Les parties de clé et leurs emplacements en mémoire sont périodiquement mis à jour afin d'assurer une sécurité cryptographique améliorée.
front page image
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)