Patent SG-11201903586S-A (SG)
Title: Blockchain data protection based on account note model with zero-knowledge proof
Inventor: MA BAOLI
Filed: 2018-11-07
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property M Th 0 111111 11 111 11111 0 11110 1 0 111 11111 11 11 0 11 0 11 11111 110 1111011 0 11 1111 Organization -- -- International Bureau (10) International Publication Number (43) International Publication Date ......•\" WO 2019/072268 A2 18 April 2019 (18.04.2019) WIP0 I PCT (51) (21) (22) (25) Filing Language: (26) (71) (72) International Not classified International International Publication Applicant: [—/CN]; Fourth George Town, Inventors: 5/F, Building trict, Hangzhou, Zhejiang 311121 bin; Alibaba 969 West Jiang 311121 Department Yuhang District, Zheng; Alibaba No. 969 West Zhejiang 311121 Patent Classification: Application Number: Filing Date: 07 Language: ALIBABA GROUP Floor, One Grand Cayman MA, Baoli; Alibaba 3, No. 969 West Group Legal Department Wen Yi Road, Yuhang District, Hangzhou, Zhe- (CN). MA, Huanyu; 5/F, Building 3, Capital (KY). Wen No. Zhejiang Yuhang November 2018 (07.11.2018) Group Department 5/F, Building 3, No. 969 West Wen Yi Road, Yuhang District, Hangzhou, Zhejiang 311121 (CN). (74) Agent: BEIJING BESTIPR INTELLECTUAL PROP- PCT/CN2018/114420 ERTY LAW CORPORATION; Room 409, Tower B, Ka Walt Building, No. 9 Shangdi 3rd Street, Haidian District, Beijing 100085 (CN). English (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, English 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, HOLDING LIMITED DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, Place, P.O. Box 847, 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, Legal Department MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, Yi Road, Yuhang Dis- OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, (CN) ZHANG, Wen- SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, Department 5/F, Building 3, 5/F, Building 3, No. TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every Alibaba Group Legal kind of regional protection available): ARIPO (BW, GH, 969 West Wen Yi Road, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, 311121 (CN). LIU, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, District, Hangzhou, EE, ES, FI, FR, GB, GR, HR, HU, 1E, IS, IT, LT, LU, LV, Alibaba Group Legal MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, Hangzhou, Group Legal Wen Yi Road, (CN). LI, Lichun; = —_ = = Title: BLOCKCHAIN DATA , 302 PROTECTION BASED ON ACCOUNT NOTE MODEL WITH ZERO-KNOWLEDGE PROOF (57) : Implementations of the present disclosure include receiving, from a first account, a digitally signed copy of a plurality of notes, a commit- ment of a transaction amount of a transaction between the first account and a second account paid by at least a portion of the plurality of notes, a commitment = (54) = ther nod. A Biddle _I — 310 of a change from deducting the transaction amount from a total value of the Node plurality of notes, and a zero-knowledge proof generated based on one or more selected random numbers. The first account determines that the total value of the plurality of notes equals the sum of the transaction amount and the change, validates the transaction, and updates the first account and the second account based on the plurality of notes, the transaction amount, and the change. FIG. 3 = = — _ sdkomonomkna.k.N. or* —.. . , --nie B Ghia. , -,1 sued Ito plrn : • „Amount - to Genereleeity oi • camp* lie Am . Mom numba = _ = = = Genie ..\" k \" I 'IP W 312 1 , cipheleide trur . ,rd aid le ding 314_ 316 Usivamfam4.4m— , Q. ,, P , ... 318 , Sutiniing a Age* koricapyton blocixhan 320 — = — = — N GC • r;; N el h - Il 0 NI vedirethodsblirak. 322 Valing+. 1 . 1- 41 •Pk.k.th.t. 324 Ve0t thilthebi.1 *them o f 6,b, n ,„ ,th av 326 328 • Weed P 0 330 ..ylvtlielMe , .... nodeA 332 f -- U yoaFgmoesofueamdeArduser no de B 334 T C [Continued on next page] WO 2019/072268 A2 I IIIII I 01111I 01110101111111101H0 1 001 II II III VIII TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — upon request of the applicant, before the expiration of the time limit referred to in Article 21(2)(a) — without international search report and to be republished upon receipt of that report (Rule 48.2(g))