Patent SG-11201804697P-A (SG)
Title: Method and system for distributed cryptographic key provisioning and storage via elliptic curve cryptography
Inventor: DAVIS STEVEN
IPC: H04L29/06
Filed: 2017-01-06
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -' Organization International Bureau res., 00) (43) International Publication Date .... ....r .„,„1 27 July 2017 (27.07.2017) WIPO I PCT ID Hit (10) WO International 2017/127238 111111111111111111111111111111111111111111111111111111111111t111111111111111 Publication Al Number (51) International Patent Classification: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, HO4L 29/06 (2006.01) HO4L 9/08 (2006.01) 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, (21) International Application Number: HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, PCT/US2017/012437 KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, (22) International Filing Date: MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, 6 January 2017 (06.01.2017) 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, (25) Filing Language: English TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, (26) Publication Language: English ZA, ZM, ZW. (30) Priority Data: (84) Designated States (unless otherwise indicated, for every 15/001,775 20 January 2016 (20.01.2016) US kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, (71) Applicant: MASTERCARD INTERNATIONAL IN- TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, CORPORATED [US/US]; 2000 Purchase Street, Pur- TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, chase, NY 10577 (US). DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, (72) Inventor: DAVIS, Steven, Charles; 128 Glenallen Drive, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, Saint Peters, MO 63376-1732 (US). SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). (74) Agent: DOBBYN, Colm, J ; Mastercard International In- Published: corporated, 2000 Purchase Street, Purchase, NY 10577 (US). — with international search report (Art 21(3)) (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, (54) Title: METHOD AND SYSTEM FOR DISTRIBUTED CRYPTOGRAPHIC KEY PROVISIONING AND STORAGE VIA — ELLIPTIC CURVE CRYPTOGRAPHY (57) : A method for distributing mul- tiple cryptographic keys used to access data includes: receiving a data signal superimposed key with an access request, wherein the access ioo 106 key request includes at least a number, n, 1021a 4 than 1, keys; greater of requested generating n Block:ham Network key pairs using a key pair generation al- key includes gorithm, wherein each pair a 4 private key and a public key; deriving an ac- cess private key by applying the key private 1 04b included in key key each of then pairs to a derivation algorithm; generating an access ----..._„ key corresponding to the derived public ac- , cess private key using the key pair generation algorithm; and electronically transmitting a data signal superimposed with a private key -..,_ 02 -''\"----.,*. 11 04e- .4t airs GC included in one of the n ke y p for each of the n key pairs. ('9') Computeig Processre ei De‘nces Server IN ei FIG. 1 1-1 IN 1-1 0 ei O