ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,452,668, issued on Oct. 21, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).
"Method and system for updating certificate issuer public key, and related device" was invented by Xiaobo Yu (Shenzhen, China), Linyi Gao (Beijing) and Shuiping Long (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes receiving, by an embedded universal integrated circuit card (eUICC), first information from a local profile assistant (LPA), where the first information includes a first certificate issuer (CI) public key identifier, and the first CI public key identifier is a CI public key identifier that the eUICC does not have. The method f...