(Java) Load PEM Public/Private Key into RSA Object

Demonstrates how to load a PEM key into the Chilkat RSA object.

Chilkat Java Downloads Java Libs for Windows, MacOS, Linux, Alpine Linux Java Libs for Android

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();

    // First demonstrate importing a PEM public key:
    String publicKeyPem = "PEM public-key data goes here";
    CkPublicKey pubkey = new CkPublicKey();

    boolean success = pubkey.LoadFromString(publicKeyPem);
    if (success != true) {
        System.out.println(pubkey.lastErrorText());
        return;
        }

    String publicKeyXml = pubkey.getXml();

    success = rsa.ImportPublicKey(publicKeyXml);
    if (success != true) {
        System.out.println(rsa.lastErrorText());
        return;
        }

    // Demonstrate importing a PEM private key:
    String privateKeyPem = "PEM private-key data goes here";
    CkPrivateKey privkey = new CkPrivateKey();

    // If the private key PEM is protected with a password, then 
    // call LoadEncryptedPem.  Otherwise call LoadPem.
    success = privkey.LoadPem(privateKeyPem);
    if (success != true) {
        System.out.println(privkey.lastErrorText());
        return;
        }

    String privateKeyXml = privkey.getXml();
    success = rsa.ImportPrivateKey(privateKeyXml);
    if (success != true) {
        System.out.println(rsa.lastErrorText());
        return;
        }

    System.out.println("OK!");
  }
}