CAC vehicle.lua variable name hashing/encryption

I was looking at vehicle.lua's obfuscation and I found (which what most people already know) that they are not just random strings of unicode, but instead they are hashes/encryptions of the original field name. e.g. debug.getmetatable is ‪‪â€*‬.‎â**‎â* while regular getmetatable is ‎â**‎â*. So does anyone know what cake uses for this, I am guessing it is just some hash with a limited unicode characterset in order to make it look like blankspaces.

Also can a mod not close this just because no one answers with-in 1 week, I prefixed it as a discussion because no one may know atm, but later they might find it.