(Java) Get Certificate's Public Key

Loads a certificate from PEM and gets the public key.

Chilkat Java Downloads Java Libs for Windows, MacOS, Linux, Alpine Linux, Solaris 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[])
  {
    CkCert cert = new CkCert();

    String strPem = "-----BEGIN CERTIFICATE----- ...";

    boolean success = cert.LoadPem(strPem);
    if (success != true) {
        System.out.println(cert.lastErrorText());
        return;
        }

    CkPublicKey pubKey = cert.ExportPublicKey();
    if (cert.get_LastMethodSuccess() == false) {
        System.out.println(cert.lastErrorText());
        return;
        }

    // You can now use the public key object however it is needed,
    // and access its various properties and methods..

    System.out.println(pubKey.getXml());
  }
}