Patent SG-11201908931T-A (SG)
Title: Cryptographic key management based on identity information
Inventor: FENG ZHIYUAN
Filed: 2019-03-29
Abstract: 5 6 RESET IDENTITY CRYPTOGRAPHIC CHIP RECEIVE AUTHORIZATION KEY INPUT REQUEST ONE-TIME PRCGRAMMABLE MEMORY? CALL AUTHORIZATION KEY INPUT FUNCTION END ,-214 FIG. 2 W O 20 19/ 1203 21 (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 11111111111110111111111111111101111101011101111111111111111111111101111111011110111111 (10) International Publication Number WO 2019/120321 A2 (51) International Patent Classification: Not classified (21) International Application Number: PCT/CN2019/080366 (22) International Filing Date: 29 March 2019 (29.03.2019) (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: FENG, Zhiyuan; Alibaba Group Legal Depart- ment 5/F, Building 3, No. 969 West Wen Yi Road, Yu Hang District, Hangzhou, Zhejiang 311121 (CN). LI, Yanpeng; Alibaba Group Legal Department 5/F, Building 3, No. 969 West Wen Yi Road, Yu Hang District, Hangzhou, Zhejiang 311121 (CN). CHENG, Long; Alibaba Group Legal De- partment 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 Wah 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, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). (54) Title: CRYPTOGRAPHIC KEY MANAGEMENT BASED ON IDENTITY INFORMATION (57) : Disclosed herein are methods, systems, and apparatus, including com- puter programs encoded on computer storage media, for managing cryptographic keys based on user identity information. One of the methods includes receiving a request to store identity information and a user key pair to a memory on a chip, the request being digitally signed with a digital signature, the identity information uniquely identifying the user, and the user key pair being assigned to the user; determining that the digital signature is authentic based on a public key pre-stored in the memory; encrypting the identity information and the user key pair; and storing the identity information and the user key pair to the memory. [Continued on next page] WO 2019/120321 A2 I Illi I 01111I 011101011111111M0 1 0 111 0 HOIMENDIED II IMINHOHE 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))