我目前正在为我的 Galaxy s4 实现 HCE。我有一个支持 7816-4 的 Omnikey 5321-cl 阅读器。我的 android 类如下所示：
public class NfcHceService extends HostApduService{
private int counter = 0;
@Override
public void onStart(android.content.Intent intent, int startId)
{
new Thread(new Runnable() {
@Override
public void run()
{
while (true)
{
Log.d("HCE", String.valueOf(counter));
counter++;
try
{
Thread.sleep(1000);
} catch (InterruptedException e)
{
e.printStackTrace();
}
}
}
}).run();
}
@Override
public byte[] processCommandApdu(byte[] apdu, Bundle extras)
{
byte[] response = null;
if (apdu[2] == 0xA4)
{
// return selecting applet
response = new byte[] { (byte) 0x90, 0x00 };
}
return response;
}
@Override
public void onDeactivated(int reason)
{
android.os.Debug.waitForDebugger();
Log.d("HCE", "onDeactivated");
}
}
我的读者类看起来像这样：
private static final byte[] CLA_INS_P1_P2 = { 0x00, (byte) 0xA4, 0x04, 0x00 };
private static final byte[] AID_ANDROID = { (byte) 0xF0, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06 };
private static byte[] createSelectAidApdu(byte[] aid)
{
byte[] result = new byte[6 + aid.length];
System.arraycopy(CLA_INS_P1_P2, 0, result, 0, CLA_INS_P1_P2.length);
result[4] = (byte) (aid.length);
System.arraycopy(aid, 0, result, 5, aid.length);
result[result.length - 1] = 10;
return result;
}
public static void Create_MF() throws CardException
{
// --Variable declaration
Card card = null;
ResponseAPDU answer = null;
// ---------------------------------------------
// --1--Establish connection with the smart card
TerminalFactory factory = TerminalFactory.getDefault();
List<CardTerminal> terminals = factory.terminals().list();
// Use the first terminal
CardTerminal terminal = terminals.get(1);
// Connect with the card
card = terminal.connect("*");
CardChannel channel = card.getBasicChannel();
// ---------------------------------------------
byte[] selectAidApdu = createSelectAidApdu(AID_ANDROID);
answer = channel.transmit(new CommandAPDU(selectAidApdu));
我对 hce 服务的 AID 是 F0010203040506。
我现在的问题是我在我的 android 设备上得到了一个正确的 Select APDU，如下所示：
> RX: Type 4 Tag Command (13 bytes)
CLA:0x00
INS:0xA4(Select)
P1:0x04(Name)
P2:0x00(First or Only)
LC:0x07(7)
Data(7 bytes)
00: f0 01 02 03 04 05 06
Le:0x0A(10)
但我得到一个响应代码 6A82。据我了解，这意味着该设备找不到该服务。但我不明白为什么。有人可以帮忙吗？
显现：
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.hce"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="19"
android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.NFC" />
<uses-feature android:name="android.hardware.nfc.hce" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<service
android:name=".NfcHceService"
android:exported="false"
android:permission="android.permission.BIND_NFC_SERVICE" >
<intent-filter>
<action android:name="android.nfc.cardemulation.HOST_APDU_SERVICE" />
</intent-filter>
<meta-data
android:name="android.nfc.cardemulation.host_apdu_service"
android:resource="@xml/hce_service" />
</service>
</application>
和 xml 文件：
<host-apdu-service xmlns:android="http://schemas.android.com/apk/res/android"
android:description="@string/my_app_hce_service" >
<aid-group
android:category="other"
android:description="@string/my_app_aid_group" >
<aid-filter android:name="F0010203040506" />
</aid-group></host-apdu-service>
更新
public static void Create_MF() throws CardException
{
// --Variable declaration
Card card = null;
ResponseAPDU answer = null;
// ---------------------------------------------
// --1--Establish connection with the smart card
TerminalFactory factory = TerminalFactory.getDefault();
List<CardTerminal> terminals = factory.terminals().list();
// Use the first terminal
CardTerminal terminal = terminals.get(1);
// Connect with the card
card = terminal.connect("*");
CardChannel channel = card.getBasicChannel();
// ---------------------------------------------
byte[] selectAidApdu = { 0x00, (byte) 0xA4, 0x04, 0x00, 0x07, (byte) 0xF0, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06 }; // createSelectAidApdu(AID_ANDROID);
answer = channel.transmit(new CommandAPDU(selectAidApdu));}
更新 2
我试图实现 isDefaultServiceForAid()。但我不确定我是否正确使用它以及它是否符合我的要求。
CardEmulation card = CardEmulation.getInstance(NfcAdapter.getDefaultAdapter(this));
ComponentName comp = new ComponentName(getApplicationContext(), NfcHceService.class);
boolean tmp = card.isDefaultServiceForAid(comp, "F0010203040506");
它真的测试了我的服务的 AID 还是其他什么？我想测试我的服务是否可以使用我在我的清单中声明的 hce_service.xml 中指定的 AID 访问。