(Java) Generate RSA Key and Export to Encrypted PEM

Java sample showing how to generate an RSA key and export to encrypted PEM.

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkRsa rsa = new CkRsa();

    // Generate a 1024-bit key.  Chilkat RSA supports
    // key sizes ranging from 512 bits to 4096 bits.
    boolean success = rsa.GenerateKey(1024);
    if (success != true) {
        System.out.println(rsa.lastErrorText());
        return;
        }

    // Get the private key as unencrypted XML:
    String keyXml = rsa.exportPrivateKey();
    System.out.println(keyXml);

    // To encrypt the key -- meaning to get the key in
    // an encrypted PEM format -- load it into a PrivateKey object,
    // and then export to encrypted PEM:
    CkPrivateKey privKey = new CkPrivateKey();

    success = privKey.LoadXml(keyXml);
    if (success != true) {
        System.out.println(privKey.lastErrorText());
        return;
        }

    String strEncPem;

    strEncPem = privKey.getPkcs8EncryptedPem("myPassword");

    // You now have the private key in an encrypted format,
    // which may be (for example) saved to a database
  }
}