Patent AU-2019204710-C1 (AU)
Title: Managing cryptographic keys based on identity information
Inventor: FENG ZHIYUAN
IPC: H04L9/08
Filed: 2019-03-29
Granted: 2021-07-08
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) 
(19) World Intellectual Property 
(1) Organization11111111111111111111111I1111111111111i1111liiiii 
International Bureau (10) International Publication Number 
(43) International Publication Date W O 2019/120322 A2 
27 June 2019 (27.06.2019) W IPO I PCT 
(51) International Patent Classification: Wal Building, No. 9 Shangdi 3rd Street, Haidian District, 
Not classified Beijing 100085 (CN).  
(21) International Application Number: (81) Designated States (unless otherwise indicated, for every 
PCT/CN2019/080372 kind ofnational protection available): AE, AG, AL, AM, 
(22)InternationalFilingDate: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, 
29 March 2019 (29.03.2019) 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, 
(25) Filing Language: 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, 
(26)PublicationLanguage: English MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, 
(71) Applicant: ALIBABA GROUP HOLDING LIMITED OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 
[-/CN]; Fourth Floor, One Capital Place, P.O. BOX 847, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, 
George Town, Grand Cayman (KY). TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.  
(72) Inventors: FENG, Zhiyuan; Alibaba Group Legal Depart- (84) Designated States (unless otherwise indicated, for every 
ment 5/F, Building 3, No.969 West Wen Yi Road, Yu Hang kind of regional protection available): ARIPO (BW, GH, 
District, Hangzhou, Zhejiang 311121 (CN). LI, Yanpeng; GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, 
Alibaba Group Legal Department 5/F, Building 3, No.969 UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, 
West Wen Yi Road, Yu Hang District, Hangzhou, Zhejiang TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, 
311121 (CN). CHENG, Long; Alibaba Group Legal De- EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, 
partment 5/F, Building 3, No.969 West Wen Yi Road, Yu MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, 
Hang District, Hangzhou, Zhejiang 311121 (CN). TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, 
KM, ML, MR, NE, SN, TD, TG).  
(74) Agent: BEIJING BESTIPR INTELLECTUAL PROP
ERTY LAW CORPORATION; Room 409, Tower B, Ka 
(54) Title: MANAGING CRYPTOGRAPHIC KEYS BASED ON IDENTITY INFORMATION 
(57) Abstract: Disclosed herein are methods, systems, and apparatus, including computer 
200programs encoded on computer storage media, for managing cryptographic keys based on 
user identity information. One of the methods includes receiving biometric information 
RESETIDENTITYCRYPTOGRAPHICCHIP 202 associated with a user and a request to store a user key pair to a memory on an identity 
cryptographic chip (ICC); comparing the biometric information associated with the user 
with biometric information pre-stored in the memory as pre-stored biometric information; 
RECEIVE AJTHORIZATION IDENTTY 204 in response to determining that the biometric information associated with the user matches 
the pre-stored biometric information, encrypting the user key pair to provide an encrypted 
user key pair; and storing the encrypted user key pair to the memory.  
CALLIDENTNTY FORMATION 206 
NPUTFUNCTION 
- 208 
- ONE-rIlgE 
PRYESFOGABLE 
'YES MEV/ORI? 
- NO 
CLEARMEVORYCONTENT -210 
. ENCRYPTANDINPUTIDEN TYlNFORMATONJ 212 
END 2 
FIG. 2
W O 2019/120322 A2|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 
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))