Java

Load a Private Key from PEM Text

Demonstrates the Chilkat PrivateKey.LoadPem method, which loads a private key from PEM text. The only argument is the PEM string. It has no password argument, so it cannot load an encrypted PEM — use LoadEncryptedPem for that.

Background: PEM is the Base64 text format (delimited by -----BEGIN----- lines) that most tooling uses for keys. This method is for the plain, unencrypted case where the key material sits in the clear inside the PEM — convenient, but it means the file itself is the only thing protecting the key. When the PEM is password-protected (a BEGIN ENCRYPTED PRIVATE KEY block or a legacy encrypted header), reach for the Encrypted loader instead.

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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;

    //  Demonstrates the PrivateKey.LoadPem method, which loads a private key from PEM text.  The only
    //  argument is the PEM string.  This method has no password argument, so it cannot load an
    //  encrypted PEM -- use LoadEncryptedPem for that.

    CkPrivateKey privKey = new CkPrivateKey();

    //  The PEM text of an unencrypted private key.
    String pemText = "-----BEGIN PRIVATE KEY-----\nMIIEvAIBADANBgkq...\n-----END PRIVATE KEY-----";

    success = privKey.LoadPem(pemText);
    if (success == false) {
        System.out.println(privKey.lastErrorText());
        return;
        }

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