Crate russh_keys
source ·Expand description
This crate contains methods to deal with SSH keys, as defined in crate Russh. This includes in particular various functions for opening key files, deciphering encrypted keys, and dealing with agents.
The following example (which uses the openssl
feature) shows how
to do all these in a single example: start and SSH agent server,
connect to it with a client, decipher an encrypted private key
(the password is b"blabla"
), send it to the agent, and ask the
agent to sign a piece of data (`b“Please sign this“, below).
use russh_keys::*;
use futures::Future;
#[derive(Clone)]
struct X{}
impl agent::server::Agent for X {
fn confirm(self, _: std::sync::Arc<key::KeyPair>) -> Box<dyn Future<Output = (Self, bool)> + Send + Unpin> {
Box::new(futures::future::ready((self, true)))
}
}
const PKCS8_ENCRYPTED: &'static str = "-----BEGIN ENCRYPTED PRIVATE KEY-----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\nCog3JMeTrb3LiPHgN6gU2P30MRp6L1j1J/MtlOAr5rux\n-----END ENCRYPTED PRIVATE KEY-----\n";
#[cfg(all(unix, feature = "openssl"))]
fn main() {
env_logger::try_init().unwrap_or(());
let dir = tempdir::TempDir::new("russh").unwrap();
let agent_path = dir.path().join("agent");
let mut core = tokio::runtime::Runtime::new().unwrap();
let agent_path_ = agent_path.clone();
// Starting a server
core.spawn(async move {
let mut listener = tokio::net::UnixListener::bind(&agent_path_)
.unwrap();
russh_keys::agent::server::serve(tokio_stream::wrappers::UnixListenerStream::new(listener), X {}).await
});
let key = decode_secret_key(PKCS8_ENCRYPTED, Some("blabla")).unwrap();
let public = key.clone_public_key().unwrap();
core.block_on(async move {
let stream = tokio::net::UnixStream::connect(&agent_path).await?;
let mut client = agent::client::AgentClient::connect(stream);
client.add_identity(&key, &[agent::Constraint::KeyLifetime { seconds: 60 }]).await?;
client.request_identities().await?;
let buf = b"signed message";
let sig = client.sign_request(&public, russh_cryptovec::CryptoVec::from_slice(&buf[..])).await.1.unwrap();
// Here, `sig` is encoded in a format usable internally by the SSH protocol.
Ok::<(), Error>(())
}).unwrap()
}
#[cfg(any(not(unix), not(feature = "openssl")))]
fn main() {}
Modules§
- A module to write SSH agent.
Enums§
- AES encryption key.
Traits§
Functions§
- Check whether the host is known, from its standard location.
- Check that a server key matches the one recorded in file
path
. - Decode a secret key given in the OpenSSH format, deciphering it if needed using the supplied password.
- Decode a secret key in the PKCS#5 format, possible deciphering it using the supplied password.
- Decode a secret key, possibly deciphering it with the supplied password.
- Get the server key that matches the one recorded in the user’s known_hosts file.
- Get the server key that matches the one recorded in
path
. - Record a host’s public key into the user’s known_hosts file.
- Record a host’s public key into a nonstandard location.
- Load a public key from a file. Ed25519, EC-DSA and RSA keys are supported.
- Load a secret key, deciphering it with the supplied password if necessary.
- Reads a public key from the standard encoding. In some cases, the encoding is prefixed with a key type identifier and a space (such as
ssh-ed25519 AAAAC3N...
). - Write a public key onto the provided
Write
, encoded in base-64.