Appnr

do unattended reboots with an encrypted root file system

This is the client part of the Mandos system, which allows
computers to have encrypted root file systems and at the
same time be capable of remote and/or unattended reboots.

The computers run a small client program in the initial RAM
disk environment which will communicate with a server over a
network. All network communication is encrypted using TLS.
The clients are identified by the server using an OpenPGP
key; each client has one unique to it. The server sends the
clients an encrypted password. The encrypted password is
decrypted by the clients using the same OpenPGP key, and the
password is then used to unlock the root file system,
whereupon the computers can continue booting normally.