Best and safest way to run Security Key App on your own PC is by using BlueStacks App from Run Android on Windows with BlueStacks :: Android on PC :: Android Player for Windows | BlueStacks.
All you have to do is to :
1. Download BlueStacks App from Run Android on Windows with BlueStacks :: Android on PC :: Android Player for Windows | BlueStacks
2. Install BlueStacks
3. Search for The Old Republic Security Key App on your new Android system.
4. Download SWTOR Security Key App on your virtual machine.
5. Add your Security Key to your account.
Start playing safe and have fun in game.