Struct HostKey 

pub struct HostKey { /* private fields */ }

The server’s persistent SSH host key.

Debug prints the fingerprint only. Private key material must not be one {:?} away from a log file.

Implementations

impl HostKey

pub fn private_openssh(&self) -> &[u8]

The OpenSSH-format private key bytes, exactly as stored.

This is what the byte-identical-across-restart assertion compares.

pub fn private_key(&self) -> &PrivateKey

The parsed key, for russh.

pub fn public_openssh(&self) -> Result<String, Error>

The public half, as an authorized_keys/known_hosts line.

pub fn fingerprint(&self) -> Fingerprint

The fingerprint an operator sees on first connection.

pub fn from_openssh(bytes: Vec<u8>) -> Result<HostKey, Error>

Parse stored bytes back into a key. pub since 2026-08-30, for replication’s deploy key.

This type is not “the SSH host key” — it is an ed25519 OpenSSH keypair with the two accessors anything holding one needs (private_openssh for a signer, public_openssh for the line you authorise). The appliance’s replication key is exactly that, minted by the same mint_ed25519 and read back through the same parser, and a second OpenSSH decoder in gunnar-server to avoid making one function public would be a twin (one implementation).

Trait Implementations

impl Clone for HostKey

fn clone(&self) -> HostKey

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for HostKey

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.