Puppy Linux secure boot key

I want to sometimes use Linux, sometimes windows. I found out that, Puppy Linux is small, I can install it on a USB. But the problem is, if I click on my USB in the boot menu, I have to disable secure boot first. I found out, I will need a secure boot key. But I cant find it anywhere. Does anybody know where to get the Puppy Linux secure boot key? Thank you sm. (I dont want to keep secureboot turned off. Read more about my opinion here: [My opinion](https://superuser.com/questions/1762885/is-disabling-secureboot-that-bad "looks like somebody cares about my opinion :)")