Java

Duplicate openssl pkcs12 –export –in certfile.cer –inkey certfile.key –out certfile.pfx

See more OpenSSL Examples

How to create a PKCS12 (.p12 or .pfx) from a certificate file and private key file: Demonstrates how to duplicate this OpenSSL command:

Duplicate openssl pkcs12 –export –in certfile.cer –inkey certfile.key –out certfile.pfx

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.

    CkPrivateKey pkey = new CkPrivateKey();

    // Load the private key from the file.
    success = pkey.LoadAnyFormatFile("certFile.key","");
    if (success != true) {
        System.out.println(pkey.lastErrorText());
        return;
        }

    CkCert cert = new CkCert();
    // The LoadFromFile method auto-recognizes the format...
    success = cert.LoadFromFile("certfile.cer");
    if (success != true) {
        System.out.println(cert.lastErrorText());
        return;
        }

    // We'll need a cert chain object to create the PKCS12, so get it
    // from the cert.  
    CkCertChain certChain;
    certChain = cert.GetCertChain();
    if (!cert.get_LastMethodSuccess()) {
        System.out.println(cert.lastErrorText());
        return;
        }

    // Create the PFX object, add the cert and private key, and write to a .pfx file.
    CkPfx pfx = new CkPfx();

    // The cert(s) are automatically added in the call to AddPrivateKey
    success = pfx.AddPrivateKey(pkey,certChain);
    if (success != true) {
        System.out.println(pfx.lastErrorText());
        return;
        }

    // Write the .pfx to a file.
    String password = "myPassword";
    success = pfx.ToFile(password,"certfile.pfx");
    if (success != true) {
        System.out.println(pfx.lastErrorText());
        return;
        }

    System.out.println("Success.");
  }
}