Patent SG-11201807726Q-A (SG)
Title: Multi-level communication encryption
Inventor: LE SAINT ERIC
IPC: H04L29/06
Filed: 2017-06-07
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property C.--.` 1111111111 0111011110111110101111111 0111111010 Ifill11111110111110111011 III1 Organization International Bureau (10) International Publication Number 03 (43) International Publication Date ......\"' WO 2017/214288 Al 14 December 2017 (14.12.2017) W I PO I PCT (51) International Patent Classification: Circle, Mountain View, California 94040 (US). KEKICH- H04L 29/06 (2006.01) HO4W 12/06 (2009.01) EFF, Marc; 13 Charthouse Lane, Foster City, California H04L 9/14 (2006.01) 94404 (US). FEDRONIC, Dominique; 2705 Barclay Way, Belmont, California 94002 (US). (21) International Application Number: PCT/US2017/036380 (74) Agent: BOUQUET, Bert E. et al.; Kilpatrick Townsend & (22) International Filing Date: Stockton LLP, Mailstop: IP Docketing - 22, 1100 Peachtree 07 June 2017 (07.06.2017) Street, Suite 2800, Atlanta, Georgia 30309 (US). (25) Filing Language: English (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, (26) Publication Language: English AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (30) Priority Data: CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, 62/346,968 07 June 2016 (07.06.2016) US DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, (71) Applicant: VISA INTERNATIONAL SERVICE KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, ASSOCIATION [US/US]; P.O. BOX 8999, M1-11F, San MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, Francisco, California 94128-8999 (US). 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, (72) Inventors: LE SAINT, Eric; 1273 St Mark Ct., Los Altos, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. California 94024 (US). CHEN, Yue; 858 Runningwood = (54) Title: MULTI-LEVEL COMMUNICATION ENCRYPTION = = — _ AUTHORIZATION ACCESS SERVER 112 COMPUTER PROCESSING NETWORK = 108 114 RESOURCE 113 = = = COMMUNICATION PROCESSING NE WORK = = 04 = COMPUTER 106 = = USER DEVICE 102 = I PROCESSOR(s)1 8 I LOCAL DEVICE = I STORAGE 120 I \\ 110 = , COMM. INTERFACE 130 1 ENCRYPTION DATA 128 = I/O DEvia(E) 132 I = MEMORY 116 I OPERATING SYSTEM 122 I I AUTHORIZATION MODULE 124 — ENCRYPTION MODULE 126 I Il FIG 1 GC cc el (57) : Techniques are provided to generate a secure communication for use in a transaction. In some embodiments, a user 'V device is provided a first set of encryption keys associated with one or more authorizing entities. The user device may, prior to or during 1-1 a transaction, receive one or more second encryption keys related to a second party to the transaction. In some embodiments, the one ei ---- or more second encryption keys may be provided to the user device via a local communication means. Once the user device has been IN provided with transaction details, it may generate a transaction request using the multiple encryption keys that it has been provided, 1-1 © such that portions of the message are encrypted using different encryption keys. ei C [Continued on next page] WO 2017/214288 Al MIDEDIMOMOIDEIRMEM00110101filiMMOVOIS (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (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), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) — before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h))