ssh-keygen -o -a 100 -t ed25519
sshfp generates DNS SSHFP records from SSH public keys. sshfp can take public keys from a known_hosts file or from scanning the host's sshd daemon.
LittleBlackBox is a collection of thousands of private SSL and SSH keys extracted from various embedded devices. These private keys are stored in a database where they are correlated with their public certificates as well as the hardware/firmware that are known to use those private keys.
All you need to do is installing dropbear (a tiny SSH server) and BusyBox (a tiny shell, usually already installed) using apt-get. The initrd will be recreated automatically. Then reboot your computer.
The Monkeysphere project's goal is to extend OpenPGP's web of trust to new areas of the Internet to help us securely identify each other while we work online.