Patent SG-11201909809V-A (SG)
Title: Processing blockchain data based on smart contract operations executed in a trusted execution environment
Inventor: WEI CHANGZHENG
Filed: 2019-04-03
Abstract: Tnistedampullae base (TCB) FIG. (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 27 June 2019 (27.06.2019) WIPO I PCT 111111111111101111111111111111011111010111011111111111111111111111111111111011110111111 (10) International Publication Number WO 2019/120327 A2 (51) International Patent Classification: Not classified (21) International Application Number: PCT/CN2019/081180 (22) International Filing Date: 03 April 2019 (03.04.2019) (25) Filing Language: English (26) Publication Language: English (71) Applicant: ALIBABA GROUP HOLDING LIMITED [—/CN]; Fourth Floor, One Capital Place, P.O. Box 847, George Town, Grand Cayman (KY). (72) Inventors: WEI, Changzheng; Alibaba Group Legal De- partment 5/F, Building 3, No. 969 West Wen Yi Road, Yu Hang District, Hangzhou, Zhejiang 311121 (CN). YAN, Ying; Alibaba Group Legal Department 5/F, Building 3, No. 969 West Wen Yi Road, Yu Hang District, Hangzhou, Zhejiang 311121 (CN). ZHAO, Boran; Alibaba Group Le- gal Department 5/F, Building 3, No. 969 West Wen Yi Road, Yu Hang District, Hangzhou, Zhejiang 311121 (CN). SONG, Xuyang; Alibaba Group Legal Department 5/F, Building 3, No. 969 West Wen Yi Road, Yu Hang Dis- trict, Hangzhou, Zhejiang 311121 (CN). DU, Huabing; Al- ibaba Group Legal Department 5/F, Building 3, No. 969 West Wen Yi Road, Yu Hang District, Hangzhou, Zhejiang 311121 (CN). (74) Agent: BEIJING BESTIPR INTELLECTUAL PROP- ERTY LAW CORPORATION; Room 409, Tower B, Ka 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, 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. (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, 1E, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, (54) Title: PROCESSING BLOCKCHAIN DATA BASED ON SMART CONTRACT OPERATIONS EXECUTED IN A TRUSTED EXECUTION ENVIRONMENT (57) : Disclosed herein are methods, systems, and apparatus, in- 300 cluding computer programs encoded on computer storage media, for pro- cessing blockchain data under a trusted execution environment (TEE). 302 One of the methods includes receiving, by a blockchain node, a request 1 306 to execute one or more software instructions in a TEE executing on the blockchain node; determining, by a virtual machine in the TEE, data as- sociated with one or more blockchain accounts to execute the one or more software instructions based on the request; traversing, by the vir- tual machine, a global state of a blockchain stored in the TEE to locate the data; and executing, by the virtual machine, the one or more software instructions based on the data. [Continued on next page] ecru W O 20 19/ 1203 27 A2 WO 2019/120327 A2 I VIII I 011111011101011111111M0130H11111 11111 11111 11111 II II INIEMIE 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))