I am working on a game server and need to find the encryption key to extract updates from an .evp file using QuickBMS. This involves software reverse engineering to locate the offsets in the Chinese game executable

"I am working on a game server and to obtain updates, I need to open an .evp file using a tool called QuickBMS, which I already have. The BMS script works perfectly on the old .evp files, but the encryption key for the Chinese game executable has changed, and I need to find it to locate the offsets to put in the script and extract the .evp file. This is where software reverse engineering comes into play."