US 11,930,360 B2
Method and system for updating certificate issuer public key, and related device
Xiaobo Yu, Shenzhen (CN); Linyi Gao, Beijing (CN); and Shuiping Long, Beijing (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Jan. 24, 2023, as Appl. No. 18/158,809.
Application 18/158,809 is a continuation of application No. 17/540,874, filed on Dec. 2, 2021, granted, now 11,601,809.
Application 17/540,874 is a continuation of application No. 16/485,261, granted, now 11,223,950, issued on Jan. 11, 2022, previously published as PCT/CN2018/071667, filed on Jan. 5, 2018.
Claims priority of application No. PCT/CN2017/073252 (WO), filed on Feb. 10, 2017.
Prior Publication US 2023/0232227 A1, Jul. 20, 2023
Int. Cl. H04W 12/069 (2021.01); H04W 12/041 (2021.01); H04W 12/30 (2021.01); H04W 12/72 (2021.01); H04L 9/30 (2006.01); H04L 9/32 (2006.01)
CPC H04W 12/069 (2021.01) [H04W 12/041 (2021.01); H04W 12/35 (2021.01); H04W 12/72 (2021.01); H04L 9/30 (2013.01); H04L 9/3268 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a subscription manager-data preparation (SM-DP+) server from a local profile assistant (LPA), first embedded universal integrated circuit card (eUICC) information comprising a verification certificate issuer (CI) public key identifier list of an eUICC;
sending, by the SM-DP+ server to the LPA, first information comprising a first CI public key identifier, wherein the first CI public key identifier is stored on the SM-DP+ server, does not match any CI public key identifier in the verification CI public key identifier list, and is for mutual authentication between the SM-DP+ server and the eUICC;
sending, by the LPA to the eUICC, the first CI public key identifier;
receiving, by an operating system patch server (OPS) from the eUICC, second information comprising the first CI public key identifier; and
sending, by the OPS to the eUICC, a patch package comprising a first CI public key corresponding to the first CI public key identifier to enable the eUICC to update a set of CI public keys of the eUICC.