(Android™) SSH HSM Public Key Authentication

Demonstrates how to authenticate with an SSH server using public key authentication using an HSM (USB token or smartcard).

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.

    // Note: Chilkat's PKCS11 implementation runs on Windows, Linux, MacOs, and other supported operating systems.

    CkPkcs11 pkcs11 = new CkPkcs11();

    // This would be a path to a .dylib on MacOS, or a path to a .so shared lib on Linux.
    pkcs11.put_SharedLibPath("C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll");
    String pin = "0000";
    int userType = 1;

    // Establish a PKCS11 logged-on session using the driver (.so, .dylib, or .dll) as specified in the SharedLibPath above.
    boolean success = pkcs11.QuickSession(userType,pin);
    if (success == false) {
        Log.i(TAG, pkcs11.lastErrorText());
        return;
        }

    // Set PKCS11 attributes to find our desired private key object.
    CkJsonObject json = new CkJsonObject();
    json.UpdateString("class","private_key");
    json.UpdateString("label","MySshKey");

    // Get the PKCS11 handle to the private key located on the HSM.
    int priv_handle = pkcs11.FindObject(json);

    // Get the PKCS11 handle to the corresponding public key located on the HSM.
    json.UpdateString("class","public_key");

    int pub_handle = pkcs11.FindObject(json);

    CkSshKey key = new CkSshKey();
    // The key type can be "rsa" or "ec"
    String keyType = "rsa";
    success = key.UsePkcs11(pkcs11,priv_handle,pub_handle,keyType);
    if (success == false) {
        Log.i(TAG, key.lastErrorText());
        return;
        }

    CkSsh ssh = new CkSsh();

    success = ssh.Connect("example.com",22);
    if (success != true) {
        Log.i(TAG, ssh.lastErrorText());
        return;
        }

    // Authenticate with the SSH server using the login and
    // HSM private key.  (The corresponding public key should've 
    // been installed on the SSH server beforehand.)
    success = ssh.AuthenticatePk("myLogin",key);
    if (success != true) {
        Log.i(TAG, ssh.lastErrorText());
        return;
        }

    Log.i(TAG, "Public-Key Authentication Successful!");

  }

  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."
  }
}