KFDtool

Just for context, on public safety/mil radios the user usually can't manage key material from within the UI of the radio: there's literally a distinct piece of hardware called a keyloader that's required to do it, e.g. https://www.motorolasolutions.com/en_us/products/p25-product... (or https://github.com/KFDtool/KFDtool if you're cool). Individual people in the field usually don't have this hardware. I think the poster you're replying to is suggesting in a roundabout manner a way for a user, knowing their radio is about to be compromised, to zero the keys without one of these boxes. It's been a while since I last dug around in cps astro, but istr that being a thing you could set up.

Most P25 radios also require a specialized device (keyloader) for loading encryption keys that's separate from the vendor's programming software for channels and other parameters. Used keyloaders that support AES-256 still go for $2,000+ (Motorola KVL3000+/KVL4000). A couple years ago I developed an open source one: https://github.com/KFDtool/KFDtool