Patent AU-2018347196-B2 (AU)
Title: System and method for information protection
Inventor: MA BAOLI
IPC: G06F21/10
Filed: 2018-11-27
Granted: 2020-05-14
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER TIlE PATENT COOPERATION TREATY (PCT) (19)World IntellectualProperty International Bureau (10) International Publication Number (43) International Publication Date W O 2019/072278 A2 18 April 2019 (18.04.2019) W IPO I PCT (51) International Patent Classification: West Wen Yi Road, Yu Hang District, Hangzhou, Zhejiang Not classified 311121 (CN), (21) InternationalApplication Number: (74) Agent: BEIJING BESTIPR INTELLECTUAL PROP PCT/CN2018/117560 ERTY LAW CORPORATION: Room 409, Tower B, Ka (22)InternationalFilingDate: Walt Building, No. 9 Sangdi 3rd Street. Ilaidian District. 27 November 2018 (27.11.2018) Beijing10085-(CN). (25)FilingLanguage: English (81) Designated States lesss otherwise indicated. for ever kid ofnationalprofection available: AE, AG, AL, AM, (26) Publication Language: English AO. AT. AU. AZ. BA. BB, BG. BIt. BN, BR, BW. BY, BZ, CA. CH, CL. CN. CO. CR. CU. CZ, DE. DJ. DK. DM. DO (71)Applicant: ALIBABA GROUP HOLDING LIMITED DZ. EC. EE. EG. ES. Fl. GB. GD. GE. GH. GM. GT HN. -/C : FourthFloor.One Capital Place.P.O.BOX 7, HR. HU, ID. L, IN. IR. IS.JO, JP, KE, KG. KH. KN, KP GeorgeTownGrandCayman(KY) KR, KW. KZ, LA. LC. LK. LR, LS, LU, LY, MA, MD, ME, (72) Inventors: MA,Baoli: Aibaba Group Legal Department 5/ MG.MK, MN.MW. MX MY. MZ, NA. NG. NI, NO, NZ, F, Building 3, No.969 WestWenYi Road, Yu IangDistrict, OM. PA. PE. PG. PH. PL, PT. QA, RO. RS, RU. RW, SA, Hangzhou, Zhejiang 311121 (CN), ZIANG, Wenbin; Al- SC. SD. SE. SG. SK. SL. SM. ST. SV. SY. TII. TJ. TM. TN. ibaba Group Legal Department 5/F, Building 3. No.969 TR. TT. TZ. UA. UG, US. UZ. VC. VN. ZA. ZM. ZW. (54) Title: SYSTEM AND METHOD FOR INFORMATION PROTECTION a00e; 3D0t committing a transaction amount t of a transaction with a commitment scheme to obtain a transaction commitment value T the commitments cheme comprising at least a transaction blinding factor rt 12; encrypting a combination of the transaction blinding factor r_t and the transaction an-ount t with a second pubic key PK_2_3 of a recipient of the transaction, wharein: the recipient is further associated with a first public key PK_1_B as an address for receiving the transaction amount i 31transmitting the transaction commitment value T and:he encrypted combination to a recipient node associated with the (57) Abstract: A conputer-implemented method comprises: conitting a transaction amount t of a transaction with a conmitment scheme to obtain a transaction conunitmet value T. the coninitinent scheme comprising at least a transaction blinding factor r_t: en pting a combination of the transaction blinding factor r_t and the transaction amount t with a second public key PK_2_B of a recipient ofthe transaction. wherein: the recipient is further associated with a first public key PK_ I _B as art address for receiving the transaction amount t. and transmitting the transaction conuitnent value T and the encypted combination to a recipient node associated with the recipient for te recipient node to verify the transaction. W O 2019/072278 A2||l|||||||||||l|||||||||||||||||||||||||| (84) Designated States Oildess othenise indicatedfor every kind ofregional protecion available): ARIPO (BW, GII, 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. Fl. FR, GB. GHR., U.[E. [S. 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). Published: - upn requestoltheappicant. before the expiration o'the tinme liireferredtio in.rtice 21(2)K(> - iithoutinuternatna l search reportandto erepubished upon rec eipt of that report (Rule4-8.2(gn