(Android™) PKCS11 Find Driver Files

See more PKCS11 Examples

Uses Chilkat's SCard class to find smartcards/tokens present on the system (Windows/Linux/Mac/etc.) to return information about the expected PKCS11 drivers (DLL, shared lib, dylib) and the confirmed existing PKCS11 drivers present on the system.

Once the PKCS11 driver file is discovered, it can be used as a starting point with the PKCS11 class, which is shown in this example.

Note: This example requires Chilkat v9.5.0.89 or greater.

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

    // First discover the smart cards and tokens present on the system..
    CkSCard scard = new CkSCard();

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

    boolean success = scard.FindSmartcards(json);
    if (success == false) {
        Log.i(TAG, scard.lastErrorText());
        return;
        }

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

    // Sample output:
    // Note: This example was tested on Windows, but it can also run on Linux and MacOSX.
    // Important: The information for "pkcs11_driver" was added in Chilkat v9.5.0.89.

    // {
    //   "reader": [
    //     {
    //       "name": "Gemalto USB SmartCard Reader 0",
    //       "state": "present,inuse",
    //       "vendorName": "Gemalto",
    //       "serialNumber": "3339424644374543",
    //       "systemName": "Gemalto USB SmartCard Reader 0",
    //       "card": {
    //         "atr": "3B7F96000080318065B084565110120FFE829000",
    //         "windows": {
    //           "miniDriver": "AxaltoCM.dll",
    //           "cryptoProvider": "Microsoft Base Smart Card Crypto Provider",
    //           "keyStorageProvider": "Microsoft Smart Card Key Storage Provider"
    //         },
    //         "pkcs11_driver": {
    //           "possible": [
    //             "C:/Program Files/SafeNet/Authentication/SAC/x64/IDPrimePKCS1164.dll",
    //             "C:/Program Files(x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll",
    //             "C:/Program Files/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll",
    //             "C:/WINDOWS/SysWOW64/IDPrimePKCS1164.dll",
    //             "C:/WINDOWS/SysWOW64/eTPKCS11.dll"
    //           ],
    //           "exists": [
    //             "C:/Program Files/SafeNet/Authentication/SAC/x64/IDPrimePKCS1164.dll",
    //             "C:/WINDOWS/SysWOW64/eTPKCS11.dll"
    //           ]
    //         }
    //       }
    //     }
    //   ]
    // }

    // We're interested in the PKCS11 drivers that were found.

    // Find the 1st reader where the card is present.  (The "state" contains the keyword "present")
    CkJsonObject json2 = json.FindRecord("reader","state","*present*",false);
    if (json.get_LastMethodSuccess() == false) {
        Log.i(TAG, "No readers exist with a smart card or token present.");
        return;
        }

    // Get the size of the "card.pkcs11_driver.exists" array.  
    // If it doesn't exist the size will be -1.
    int numExists = json2.SizeOfArray("card.pkcs11_driver.exists");
    if (numExists < 1) {
        Log.i(TAG, "No PKCS11 driver files found for the smart card.");

        return;
        }

    // Get the path of the 1st available PKCS11 driver.
    String pkcs11DriverPath = json2.stringOf("card.pkcs11_driver.exists[0]");
    Log.i(TAG, "PKCS11 driver path = " + pkcs11DriverPath);

    // Now that we have a driver file, we can use it for PKCS11 access..
    CkPkcs11 pkcs11 = new CkPkcs11();

    pkcs11.put_SharedLibPath(pkcs11DriverPath);

    success = pkcs11.Initialize();
    if (success == false) {
        Log.i(TAG, pkcs11.lastErrorText());
        return;
        }

    // Get information about the smart card via PKCS11..
    CkJsonObject jsonPkcs11 = new CkJsonObject();
    success = pkcs11.Discover(true,jsonPkcs11);
    if (success == false) {
        Log.i(TAG, pkcs11.lastErrorText());
        return;
        }

    jsonPkcs11.put_EmitCompact(false);
    Log.i(TAG, jsonPkcs11.emit());

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

    // Sample output:

    // {
    //   "cryptokiVersion": {
    //     "major": 2,
    //     "minor": 20
    //   },
    //   "manufacturerID": "Gemalto",
    //   "libraryDescription": "Gemalto PKCS11",
    //   "libraryVersion": {
    //     "major": 10,
    //     "minor": 8
    //   },
    //   "slot": [
    //     {
    //       "id": 0,
    //       "slotDescription": "Gemalto USB SmartCard Reader 0",
    //       "manufacturerID": "Gemalto",
    //       "tokenPresent": true,
    //       "removableDevice": true,
    //       "hardwareSlot": true,
    //       "hardwareVersion": {
    //         "major": 0,
    //         "minor": 0
    //       },
    //       "firmwareVersion": {
    //         "major": 0,
    //         "minor": 0
    //       },
    //       "token": {
    //         "label": "chilkat",
    //         "manufacturerID": "Gemalto",
    //         "model": "ID Prime MD",
    //         "serialNumber": "2DD70CC46070255E",
    //         "flags": [
    //           "CKF_RNG",
    //           "CKF_LOGIN_REQUIRED",
    //           "CKF_USER_PIN_INITIALIZED",
    //           "CKF_DUAL_CRYPTO_OPERATIONS",
    //           "CKF_TOKEN_INITIALIZED",
    //           "CKF_SO_PIN_COUNT_LOW",
    //           "CKF_SO_PIN_LOCKED"
    //         ],
    //         "maxSessionCount": 0,
    //         "sessionCount": 0,
    //         "maxRwSessionCount": 0,
    //         "rwSessionCount": 0,
    //         "maxPinLen": 16,
    //         "minPinLen": 4,
    //         "totalPublicMemory": 32768,
    //         "freePublicMemory": 32720,
    //         "totalPrivateMemory": 32768,
    //         "freePrivateMemory": 32720,
    //         "hardwareVersion": {
    //           "major": 0,
    //           "minor": 0
    //         },
    //         "firmwareVersion": {
    //           "major": 0,
    //           "minor": 0
    //         },
    //         "utcTime": "",
    //         "mechanism": [
    //           "CKM_DES3_MAC",
    //           "CKM_DES3_MAC_GENERAL",
    //           "CKM_AES_MAC",
    //           "CKM_AES_MAC_GENERAL",
    //           "CKM_DES3_CBC",
    //           "CKM_DES3_CBC_PAD",
    //           "CKM_AES_CBC",
    //           "CKM_AES_CBC_PAD",
    //           "CKM_AES_CTR",
    //           "CKM_AES_CCM",
    //           "CKM_RSA_PKCS_KEY_PAIR_GEN",
    //           "CKM_RSA_PKCS",
    //           "CKM_RSA_PKCS_OAEP",
    //           "CKM_RSA_PKCS_PSS",
    //           "CKM_SHA256_RSA_PKCS_PSS",
    //           "CKM_SHA384_RSA_PKCS_PSS",
    //           "CKM_SHA512_RSA_PKCS_PSS",
    //           "CKM_SHA256_RSA_PKCS",
    //           "CKM_SHA384_RSA_PKCS",
    //           "CKM_SHA512_RSA_PKCS",
    //           "CKM_EC_KEY_PAIR_GEN",
    //           "CKM_ECDSA",
    //           "CKM_ECDSA_SHA256",
    //           "CKM_ECDSA_SHA384",
    //           "80000045",
    //           "CKM_ECDSA_SHA512",
    //           "CKM_ECDH1_DERIVE",
    //           "CKM_DES3_KEY_GEN",
    //           "CKM_AES_KEY_GEN",
    //           "CKM_PBE_SHA1_DES3_EDE_CBC",
    //           "CKM_GENERIC_SECRET_KEY_GEN",
    //           "CKM_PBA_SHA1_WITH_SHA1_HMAC",
    //           "CKM_PKCS5_PBKD2",
    //           "CKM_SHA_1_HMAC_GENERAL",
    //           "CKM_SHA_1_HMAC",
    //           "CKM_SHA256_HMAC_GENERAL",
    //           "CKM_SHA256_HMAC",
    //           "CKM_SHA384_HMAC_GENERAL",
    //           "CKM_SHA384_HMAC",
    //           "CKM_SHA512_HMAC_GENERAL",
    //           "CKM_SHA512_HMAC",
    //           "CKM_SHA_1",
    //           "CKM_SHA256",
    //           "CKM_SHA384",
    //           "CKM_SHA512",
    //           "80006001"
    //         ],
    //         "rsa": {
    //           "minKeySize": 2048,
    //           "maxKeySize": 2048
    //         }
    //       }
    //     }
    //   ]
    // }
    // 

  }

  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."
  }
}