公开(公告)号：US11610003B2

公开(公告)日：2023-03-21

申请号：US17022057

申请日：2020-09-15

Applicant: DELTA ELECTRONICS, INC.

Inventor： Hao-Chieh Chang ,  Chia-Lin Liu ,  Wan-Sheng Ni

IPC: G06F21/00 ,  G06F21/60 ,  G06F21/64 ,  G06F21/57 ,  G06F9/445 ,  G06F9/4401 ,  G06F21/54

Abstract: A software protection method includes decrypting an encrypted executable file by a processor, and the steps of decrypting include the following steps. A linking instruction is executed in a first execution environment; based on the linking instruction, a signature corresponding to the encrypted executable file is generated in the first execution environment; based on the signature and a hash table, a decryption algorithm is performed and a key is generated in the first execution environment; and the key is transmitted from the first execution environment to a second execution environment that is different from the first execution environment. The encrypted executable file is in the second execution environment. A software protection system is also disclosed herein.