Java

Load PEM Public/Private Key into RSA Object

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

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[])
  {
    boolean success = false;

    // 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();

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

    success = rsa.UsePublicKey(pubkey);
    if (success == false) {
        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 == false) {
        System.out.println(privkey.lastErrorText());
        return;
        }

    success = rsa.UsePrivateKey(privkey);
    if (success == false) {
        System.out.println(rsa.lastErrorText());
        return;
        }

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