Rust

Load a Private Key from BinData (Any Format)

Demonstrates the Chilkat PrivateKey.LoadAnyFormat method, which loads a private key by inspecting the bytes in a BinData. The first argument is the BinData and the second is the password (used if the detected key is encrypted).

Note: The file path is relative to the application's current working directory. Absolute paths may also be used. Supply the path to your own key file.

Background: When you have key bytes in memory but do not know their exact format — downloaded, decrypted, or pulled from a database — this figures it out for you, recognizing PKCS #1/#8 DER, encrypted PKCS #8, PEM, JWK, Chilkat XML, Microsoft formats, and more. It removes the guesswork of choosing a specific loader, at the small cost of the detection step. Supply the password so it can decrypt an encrypted key without a second call.

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Rust


// Demonstrates the PrivateKey.LoadAnyFormat method, which loads a private key by inspecting the
// bytes in a BinData.  The 1st argument is the BinData and the 2nd is the password (used if the
// detected key is encrypted).

let bd = chilkat::BinData::new();
if bd.load_file("qa_data/some_private_key").is_err() {
    println!("{}", bd.last_error_text());
    return;
}

let priv_key = chilkat::PrivateKey::new();

// The key password is not hard-coded in a real application; obtain it from an interactive
// prompt, environment variable, or a secrets vault.
let password = "myKeyPassword".to_string();

// Chilkat auto-detects the representation: PKCS #1/#8 DER, encrypted PKCS #8, PEM, JWK,
// Chilkat XML, Microsoft formats, and more.
if priv_key.load_any_format(&bd, &password).is_err() {
    println!("{}", priv_key.last_error_text());
    return;
}

println!("Loaded a {} private key.", priv_key.key_type());