US 11,916,878 B2
Apparatus and method for security of internet of things device
Yun-Kyung Lee, Daejeon (KR); Kyeong Tae Kim, Sejong-si (KR); Young Ho Kim, Daejeon (KR); Jeong Nyeo Kim, Daejeon (KR); Seon-Gyoung Sohn, Daejeon (KR); and Jae Deok Lim, Daejeon (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed by Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed on Nov. 1, 2021, as Appl. No. 17/515,892.
Claims priority of application No. 10-2021-0028841 (KR), filed on Mar. 4, 2021.
Prior Publication US 2022/0286433 A1, Sep. 8, 2022
Int. Cl. H04L 9/40 (2022.01)
CPC H04L 63/0245 (2013.01) [H04L 63/0263 (2013.01); H04L 63/10 (2013.01); H04L 63/108 (2013.01); H04L 63/123 (2013.01); H04L 63/20 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A security method for communication between Internet of Things (IoT) devices, the security method comprising:
unifying a port in a first IoT device for communication;
receiving, by the first IoT device, a packet from a second IoT device through the port;
identifying whether the packet received by the first IoT device is in a preset packet form;
verifying content of the packet received by the first IoT device when the packet is in the preset packet form; and
opening the port for providing a service in the first IoT device when the verifying of the packet content is successful,
wherein the port for providing the service is closed after being opened for a preset period.