(Android™) SFTP use Cert's Private Key from PFX (.pfx/.p12)

Demonstrates how to use the private key associated with a certificate from a .pfx/.p12 file.

Chilkat Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkCert cert = new CkCert();

    String pfxFilepath = "qa_data/pfx/my.pfx";
    String pfxPassword = "secret";

    // A PFX typically contains certificates in the chain of authentication.
    // The Chilkat cert object will choose the certificate w/
    // private key farthest from the root authority cert.
    // To access all the certificates in a PFX, use the 
    // Chilkat certificate store object instead.
    boolean success = cert.LoadPfxFile(pfxFilepath,pfxPassword);
    if (success != true) {
        Log.i(TAG, cert.lastErrorText());
        return;
        }

    // Get the private key.  
    CkPrivateKey privKey = cert.ExportPrivateKey();
    if (cert.get_LastMethodSuccess() == false) {
        Log.i(TAG, cert.lastErrorText());
        return;
        }

    String privKeyPem = privKey.getPkcs8Pem();
    if (privKey.get_LastMethodSuccess() == false) {
        Log.i(TAG, privKey.lastErrorText());
        return;
        }

    CkSshKey sshKey = new CkSshKey();
    success = sshKey.FromOpenSshPrivateKey(privKeyPem);
    if (success == false) {
        Log.i(TAG, sshKey.lastErrorText());
        return;
        }

    // Connect to an SSH/SFTP server
    CkSFtp sftp = new CkSFtp();
    success = sftp.Connect("sftp.example.com",22);
    if (success == false) {
        Log.i(TAG, sftp.lastErrorText());
        return;
        }

    // Authenticate with the SSH server using a username + private key.
    // (The private key serves as the password.  The username identifies
    // the SSH user account on the server.)
    success = sftp.AuthenticatePk("mySshLogin",sshKey);
    if (success == false) {
        Log.i(TAG, sftp.lastErrorText());
        return;
        }

    Log.i(TAG, "OK, the connection and authentication with the SSH server is completed.");

    // This example is only to show the connection + authentication using a private key associated with a certificate in the Windows certificate store...

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}