Android™

PKCS11 Find all Public Keys

See more PKCS11 Examples

Demonstrates how to list all public keys on an HSM.

Note: This example requires Chilkat v9.5.0.96 or later.

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;

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

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

    CkPkcs11 pkcs11 = new CkPkcs11();

    // Use the PKCS11 driver (.dll, .so, .dylib) for your particular HSM.
    // (The format of the path will change with the operating system.  Obviously, "C:/" is not used on non-Windows systems.
    pkcs11.put_SharedLibPath("C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll");

    // Establish a logged-on session. (We can typically skip the login by passing an empty PIN if only needing to list public keys)
    // Use your actual PIN here, or an empty string to skip login.
    String pin = "0000";
    int userType = 1;
    success = pkcs11.QuickSession(userType,pin);
    if (success == false) {
        Log.i(TAG, pkcs11.lastErrorText());
        return;
        }

    // Note: To find public keys, we need a session, but it doesn't necessarily need to be logged-on.

    CkJsonObject json = new CkJsonObject();
    json.put_EmitCompact(false);

    success = pkcs11.FindAllKeys("public",json);
    if (success == false) {
        Log.i(TAG, pkcs11.lastErrorText());
        return;
        }

    Log.i(TAG, json.emit());

    // Sample output, with parsing code below..

    // {
    //   "keys": [
    //     {
    //       "handle": 74842125,
    //       "id": "0001020304",
    //       "key_type": "RSA",
    //       "label": "Chilkat Software, Inc.",
    //       "modulus": "twVRf6O ... Rwa1ebFY0=",
    //       "exponent": "AAEAAQ=="
    //     },
    //     {
    //       "handle": 18415630,
    //       "id": "010203040A0B0C0D0E0F",
    //       "key_type": "RSA",
    //       "label": "ehealth private key",
    //       "modulus": "qdKjhOwA1 ... A4MtX8BYgHmLw==",
    //       "exponent": "AAEAAQ=="
    //     },
    //     {
    //       "handle": 3735567,
    //       "id": "D531B4B8F308489DA58350596178845973A4562E",
    //       "key_type": "RSA",
    //       "label": "d531b4b8-f308-489d-a583-505961788459",
    //       "modulus": "r0MmXRKBP ... HAd1kUPsNyzcQ==",
    //       "exponent": "AAEAAQ=="
    //     },
    //     {
    //       "handle": 238092304,
    //       "id": "0A0B0C0D01020304",
    //       "key_type": "RSA",
    //       "label": "MySshKey",
    //       "modulus": "ykFHcfBFOq ... rfXBK/6g9t+S6UjJ1kUQ==",
    //       "exponent": "AAEAAQ=="
    //     },
    //     {
    //       "handle": 49348625,
    //       "id": "48656C6C6F",
    //       "key_type": "RSA",
    //       "label": "2048-bit RSA key for testing",
    //       "modulus": "vReVaJzXZYIOB ... kamD/8iNvhAKlKbQ==",
    //       "exponent": "AAEAAQ=="
    //     }
    //   ]
    // }

    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    int handle;
    String id;
    String key_type;
    String label;
    String modulus;
    String exponent;

    int i = 0;
    int count_i = json.SizeOfArray("keys");
    while (i < count_i) {
        json.put_I(i);
        handle = json.IntOf("keys[i].handle");
        id = json.stringOf("keys[i].id");
        key_type = json.stringOf("keys[i].key_type");
        label = json.stringOf("keys[i].label");
        modulus = json.stringOf("keys[i].modulus");
        exponent = json.stringOf("keys[i].exponent");
        i = i + 1;
        }

    pkcs11.Logout();
    pkcs11.CloseSession();

  }

  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."
  }
}