Rust

Load an SSH Key from a File (Many Formats Supported)

Demonstrates how to load an SSH public or private key object from a file. The file can be in any of the following formats:

• OpenSSH private key
• OpenSSH public key
• PuTTY private key
• RFC 4716 public key

Rust

let sshkey = chilkat::SshKey::new();

// First, use the LoadText convenience method to load a text file (of any SSH key format)
// into a string:
let str_key = sshkey.load_text("../mySshKeys/myKey.txt").unwrap_or_default();

// Next, load the key into the SSH key object.

// If the key is an OpenSSH private key:
// (In actuality, the From* methods will automatically detect the format and load
// the key correctly.  For example, if a PuTTY private key is passed to FromOpenSshPrivateKey,
// it  will still load correctly.)
if sshkey.from_open_ssh_private_key(&str_key).is_err() {
    println!("{}", sshkey.last_error_text());
} else {
    println!("Loaded OpenSSH private key.");
    return;
}

// If the key is an OpenSSH public key:
if sshkey.from_open_ssh_public_key(&str_key).is_err() {
    println!("{}", sshkey.last_error_text());
} else {
    println!("Loaded OpenSSH public key.");
    return;
}

// If the key is a PuTTY private key:
if sshkey.from_putty_private_key(&str_key).is_err() {
    println!("{}", sshkey.last_error_text());
} else {
    println!("Loaded PuTTY private key.");
    return;
}

// If the key is an RFC 4716 public key:
if sshkey.from_rfc4716_public_key(&str_key).is_err() {
    println!("{}", sshkey.last_error_text());
} else {
    println!("Loaded RFC 4716 public key.");
}