Patent SG-11201806837W-A (SG)
Title: Access control methods, access control devices, and computer readable media
Inventor: REN SHUQIN
IPC: H04L9/32
Filed: 2017-02-15
Abstract: An access control method, which may be applied in a cloud environment, is provided in various embodiments. The access control method includes: receiving from a user a request for access to a resource; determining a group access key related to the resource; determining a user key of the user; determining whether the group key is an integer multiple of the user key; and granting the user access to the resource if it is determined that the group ac- cess key is an integer multiple of the user key. f 100 102 104 106 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2017/142479 Al 24 August 2017 (24.08.2017) WIPO I PCT 11111111111111011101111111111101011111011101011111010111011111110111111111110111111 (51) International Patent Classification: G06F 21/62 (2013.01) HO4L 9/32 (2006.01) G06F 21/31 (2013.01) (21) International Application Number: PCT/SG2017/050064 (22) International Filing Date: 15 February 2017 (15.02.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 10201601212S 18 February 2016 (18.02.2016) SG (71) Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH [SG/SG]; 1 Fusionopolis Way, #20-10 Connexis North Tower, Singapore 138632 (SG). (72) Inventors: REN, Shuqin; c/o Data Storage Institute, 2 Fu- sionopolis Way, #08-01, Innovis, Singapore 138634 (SG). TAN, Hong Meng Benjamin; c/o Data Storage Institute, 2 Fusionopolis Way, #08-01, Innovis, Singapore 138634 (SG). AUNG, Khin Mi Mi; c/o Data Storage Institute, 2 Fusionopolis Way, #08-01, Innovis, Singapore 138634 (SG). (74) Agent: SPRUSON & FERGUSON (ASIA) PTE LTD; P.O. Box 1531, Robinson Road Post Office, Singapore 903031 (SG). (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, 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. [Continued on next page] (54) Title: ACCESS CONTROL METHODS, ACCESS CONTROL DEVICES, AND COMPUTER READABLE MEDIA W O 20 1714247 / 9 Al Receive from a user a request for access to a resource IT Determine a group access key related to the resource Jr Determine a user key of the user Jr Determine whether the group access key is an integer multiple of the user key Jr Grant the user access to the resource if it is determined that the group access key is an integer multiple of the user key Figure iA 108 110 WO 2017/142479 Al 1#111011113101010EMEMOMOMMINEHOMOVOIMIE (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, IE, 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). Declarations under Rule 4.17: of inventorship (Rule 4.17(iv)) Published: with international search report (Art. 21(3))