ALEXANDRIA, Va., April 15 -- United States Patent no. 12,602,494, issued on April 14, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).
"Method for switching execution environment and related device thereof" was invented by Yingjun Zhang (Beijing), Ji Wang (Beijing) and Yingliang Yao (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses a method for switching an execution environment and a related device thereof, to effectively prevent a hacker from maliciously accessing a TEE through ATF. The method in the present disclosure includes: After writing a first virtual address into a return address register of the TEE, the ATF determines whether the first virtual...