US 12,476,830 B2
Real-time IoT data sharing system supporting attribute-based access control and method thereof
Woo Jin Jeon, Daegu (KR); Dong Hyeon Yu, Daegu (KR); Hsu Ruei-Hau, Kaohsiung (TW); Je Min Lee, Suwon-si (KR); and Ji Woong Choi, Seoul (KR)
Assigned to DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY, Daegu (KR); and RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY, Suwon-si (KR)
Appl. No. 18/032,610
Filed by DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY, Daegu (KR); and RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY, Suwon-si (KR)
PCT Filed Sep. 16, 2022, PCT No. PCT/KR2022/013866
§ 371(c)(1), (2) Date Apr. 19, 2023,
PCT Pub. No. WO2023/120875, PCT Pub. Date Jun. 29, 2023.
Claims priority of application No. 10-2021-0186293 (KR), filed on Dec. 23, 2021.
Prior Publication US 2024/0380615 A1, Nov. 14, 2024
Int. Cl. H04L 29/06 (2006.01); H04L 9/06 (2006.01); H04L 9/08 (2006.01); H04L 9/30 (2006.01); H04L 9/32 (2006.01)
CPC H04L 9/3273 (2013.01) [H04L 9/0618 (2013.01); H04L 9/0833 (2013.01); H04L 9/3073 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An IoT device including at least one sensor, configured to:
collect IoT data at regular intervals through the at least one sensor;
generate a partially encrypted intermediate ciphertext by performing at least some operations of attribute-based encryption on the IoT data; and
transmit the intermediate ciphertext to a peripheral device in order to request remaining operations of attribute-based encryption for the intermediate ciphertext,
wherein the IoT device generates an attribute set for the IoT data, encrypts the attribute set using a group key, and transmits the encrypted attribute set to the peripheral device; and
wherein the group key is shared in advance with a user device requesting the IoT data.