US 11,930,355 B2
Apparatus and method for information security
Kyungjoo Suh, Gyeonggi-do (KR); Sangjun Moon, Gyeonggi-do (KR); Kisuk Kweon, Gyeonggi-do (KR); and Youngkyo Baek, Gyeonggi-do (KR)
Assigned to Samsung Electronics Co., Ltd, (KR)
Appl. No. 17/282,888
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
PCT Filed Oct. 4, 2019, PCT No. PCT/KR2019/013053
§ 371(c)(1), (2) Date Apr. 5, 2021,
PCT Pub. No. WO2020/071862, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 10-2018-0119297 (KR), filed on Oct. 5, 2018.
Prior Publication US 2021/0352473 A1, Nov. 11, 2021
Int. Cl. H04L 9/00 (2022.01); H04W 12/04 (2021.01); H04W 88/14 (2009.01)
CPC H04W 12/04 (2013.01) [H04W 88/14 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method performed by an access and mobility management function (AMF) for a first communication system, in a wireless communication system, comprising:
transmitting, to a user data management (UDM), a request message for security of the second communication system;
receiving, from the UDM, a response message including a security key for an eNB of the second communication system; and
transmitting, to the eNB, the security key for the eNB of the second communication system, based on the response message,
wherein the security key is obtained from a base security key of the second communication system,
wherein the base security key is associated with a security key of the first communication system,
wherein the first communication system is associated with a new radio (NR) based network, and
wherein the second communication system is associated with a long term evolution (LTE) based network,
wherein the security key of the first communication system is associated with KAMF or KSEAF,
wherein the base security key is associated with KASME, and
wherein the security key for the eNB is associated with KeNB.