Java

Load an Encrypted Private Key from a PEM File

Demonstrates the Chilkat PrivateKey.LoadEncryptedPemFile method, which loads a private key from a file, using a password when the key is encrypted. The first argument is the file path and the second is the password.

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: The file-based encrypted loader — the natural choice for a .pem key stored with a passphrase, as most deployment keys are. It decrypts encrypted PKCS #8 PEM and also accepts unencrypted files, so it works whether or not the specific file is protected. Supply the passphrase from a secure source.

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import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.PrivateKey;

public class ChilkatExample {

    public static void main(String[] args) {
        // Demonstrates the PrivateKey.LoadEncryptedPemFile method, which loads a private key from a file,
        // using a password when the key is encrypted.  The 1st argument is the file path and the 2nd is
        // the password.

        PrivateKey privKey = new PrivateKey();

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

        try {
            privKey.loadEncryptedPemFile("qa_data/private_encrypted.pem", password);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Loaded a " + privKey.getKeyType() + " private key.");
    }
}