US 12,363,532 B2
Method for protecting terminal parameter update and communication apparatus
Fei Li, Shenzhen (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Sep. 29, 2022, as Appl. No. 17/936,634.
Application 17/936,634 is a continuation of application No. PCT/CN2021/077280, filed on Feb. 22, 2021.
Claims priority of application No. 202010247619.8 (CN), filed on Mar. 31, 2020; and application No. 202010292085.0 (CN), filed on Apr. 14, 2020.
Prior Publication US 2023/0035970 A1, Feb. 2, 2023
Int. Cl. H04W 12/069 (2021.01); H04W 12/041 (2021.01); H04W 12/0431 (2021.01)
CPC H04W 12/069 (2021.01) [H04W 12/041 (2021.01); H04W 12/0431 (2021.01)] 18 Claims
OG exemplary drawing
 
1. A communication method, implemented in an extensible authentication protocol (EAP) authentication and key agreement (AKA) authentication, comprising:
receiving, by a communication apparatus, an authentication request from a security anchor function;
calculating, by the communication apparatus, an authentication response and keys CK′ and IK′;
sending, by the communication apparatus, the authentication response carried in an EAP response to the security anchor function;
receiving, by the communication apparatus, an EAP success message, wherein the EAP success message is sent by an authentication service function network element through the security anchor function, and the EAP success message is configured to trigger the communication apparatus to generate a new authentication service function key (KAUSF) and to delete a stored old KAUSF on the communication apparatus; and
generating, by the communication apparatus, the new KAUSF based on the keys CK′ and IK′ in response to receiving the EAP success message and deleting the stored old KAUSF.