Ah yes, on closer inspection on a non-phone they are quite different.<p>You are just wrong on the no additional security though. In addition to enabling auditing, it also allows a username&#x2F;password to be turned into an ssh key, so that you can know that if the rpi wasn&#x27;t turned on, then nobody could log in to the target machine. It&#x27;s similar to a TPM in this regard (as blog says), or can be a jumpgate protecting the systems behind it from compromised or malicious users.<p>I&#x27;m sorry you don&#x27;t get it, but I&#x27;m not hurt by someone not understanding something when they criticize it. If you don&#x27;t see the point of not having direct access to your key, then there&#x27;s nothing I can do.