Sample code for 30+ languages & platforms
Android™

Continue SSH Keyboard-Interactive Authentication

See more SSH Examples

Demonstrates the Chilkat Ssh.ContinueKeyboardAuth method, which submits a response to a keyboard-interactive prompt. The only argument is the response text; for a request containing multiple prompts, an XML response is supplied instead. It returns XML indicating the next prompt or the final result.

Background: This is the second half of the keyboard-interactive exchange started by StartKeyboardAuth. A server may issue several rounds of prompts, so a robust client loops: submit answers, read the returned XML, and continue until authentication succeeds or fails. Prompt responses are typically secrets, so obtain them from interactive input rather than embedding them in code.

Chilkat Android™ Downloads

Android™
// 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);

    boolean success = false;

    //  Demonstrates the Ssh.ContinueKeyboardAuth method, which submits a response to a
    //  keyboard-interactive prompt.  The only argument is the response.  For multiple prompts, an
    //  XML response is supplied instead.

    CkSsh ssh = new CkSsh();

    //  Connect to the SSH server.  Port 22 is the usual SSH port.
    int sshPort = 22;
    success = ssh.Connect("ssh.example.com",sshPort);
    if (success == false) {
        Log.i(TAG, ssh.lastErrorText());
        return;
        }

    //  Begin keyboard-interactive authentication to receive the server's prompt(s).
    String infoRequestXml = ssh.startKeyboardAuth("mySshLogin");
    if (ssh.get_LastMethodSuccess() == false) {
        Log.i(TAG, ssh.lastErrorText());
        return;
        }

    //  Normally you would not hard-code the response (typically the password) in source.  You
    //  should instead obtain it from an interactive prompt.
    String response = "mySshPassword";

    //  Submit the response.  The returned XML indicates the next prompt or the final result.
    String result = ssh.continueKeyboardAuth(response);
    if (ssh.get_LastMethodSuccess() == false) {
        Log.i(TAG, ssh.lastErrorText());
        return;
        }

    Log.i(TAG, result);

    ssh.Disconnect();

  }

  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."
  }
}