Patent SG-11201903567V-A (SG)
Title: Managing private transactions on blockchain networks based on workflow
Inventor: PAN DONG
Filed: 2018-11-07
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property H Organization -- -- HI EHMOMOIHINHED v IM MI HEMI o IMUIEE N International Bureau (10) International Publication Number (43) International Publication Date .....0•\"1 WO 2019/072270 A2 18 April 2019 (18.04.2019) WIP0 I PCT (51) (21) (22) (25) Filing Language: (26) (71) (72) (74) International International International [—/CN]; Inventors: 5/F, trict, bin; 969 jiang Patent Classification: Not classified Application Number: Filing Date: 07 November 2018 (07.11.2018) Publication Language: Applicant: ALIBABA GROUP HOLDING Fourth Floor, One Capital Place, P.O. Box 847, George Town, Grand Cayman (KY). PAN, Dong; Alibaba Group Legal Department Building 3, No. 969 West Wen Yi Road, Hangzhou, Zhejiang 311121 (CN) Alibaba Group Legal Department 5/F, Building 3, No. West Wen Yi Road, Yuhang District, 311121 (CN). YAN, Xuebing; Alibaba Department 5/F, Building 3, No. 969 West Wen Yi Road, PCT/CN2018/114426 With Building, No. 9 Shangdi 3rd Street, Haidian District, Beijing 100085 (CN). (81) Designated States (unless otherwise indicated, for every kind of national protection available): 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, English 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, English MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, LIMITED 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. (84) Designated States (unless otherwise indicated, for every Yuhang Dis- kind of regional protection available): ARIPO (BW, GH, ZHANG, Wen- GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, Hangzhou, Zhe- TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, Group Legal EE, ES, FI, FR, GB, GR, HR, HU, 1E, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, (CN). TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). PROP- Tower B, Ka — Yuhang District, Hangzhou, Zhejiang 311121 Agent: BEIJING BESTIPR INTELLECTUAL ERTY LAW CORPORATION; Room 409, = = = = (54) Title: MANAGING PRIVATE TRANSACTIONS ON BLOCKCHAIN NETWORKS BASED ON WORKFLOW (57) : Implementations of the present disclosure include obtaining, by a first consensus node, a policy of a workflow for sending transaction 400 data between at least two client nodes. The policy is digitally signed by each i of the at least two client nodes using a corresponding private key, and the policy includes a routing order of the transaction data between the at least two client nodes. The first consensus node also receives the transaction data submitted by a first of the at least two client nodes. The transaction data is digitally signed by a private key of the first of the at least two client nodes. The first consensus node then forwards the transaction data to a second con- 402 sensus node or a second of the at least two client nodes based on the policy. [404 = = = = — _ = Obtaining, by a lirstconsensus node, a policy Oa woddow for sending iransactIon data between atleastbma clientnodes, whereinthe policy is digitally signed by each of the at leasthwo clientnodes using a corresponding private key, and the policy includes a routing order of the transactiondatt between the atleasttwodientnodes - = = = Receiving the transaction data submitted by a erst of the at leasttwo client node: whereinthe transaction data is digitally signed hy a private key of the first of the at leasttwo client nodes = el O N N N N O_ C.: 1-1 0 N F onvaromg the transacton data to a second consensus node era seccad et the at _1406 ,eastnvoclientnodes based on the policy FIG.4 C [Continued on next page] WO 2019/072270 A2 I Illi I 0111110111010111111110n1001110111 III IIIII 11111 II III IINHEMIE 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 upon receipt of that report (Rule 48.2(g)) to be republished