如何向 HCE 设备发送命令 APDU?
How to send a command APDU to a HCE device?
我的应用程序的AID是F239856324897348
,我已经为它构建了一个SelectAID APDU。现在我如何将它实际发送到使用主机卡仿真的接收 Android 设备。
我已经创建了我的 HCE 服务来响应 APDU,就像在这个线程中一样:
public static byte[] SelectAID = new byte[]{
(byte) 0xF2, (byte) 0x39, (byte) 0x85, (byte) 0x63,
(byte) 0x24, (byte) 0x89, (byte) 0x73, (byte) 0x48};
private void commandAPDU(byte[] apdu){
//where do I go from here...
}
commandAPDU(SelectAID);
APDU 的格式在 ISO/IEC 7816-4 中定义。典型的 SELECT(通过 AID)命令如下所示:
+-----+-----+-----+-----+-----+-------------------------+-----+
| CLA | INS | P1 | P2 | Lc | DATA | Le |
+-----+-----+-----+-----+-----+-------------------------+-----+
| 00 | A4 | 04 | 00 | XX | AID | 00 |
+-----+-----+-----+-----+-----+-------------------------+-----+
您可以这样创建它:
private byte[] selectApdu(byte[] aid) {
byte[] commandApdu = new byte[6 + aid.length];
commandApdu[0] = (byte)0x00; // CLA
commandApdu[1] = (byte)0xA4; // INS
commandApdu[2] = (byte)0x04; // P1
commandApdu[3] = (byte)0x00; // P2
commandApdu[4] = (byte)(aid.length & 0x0FF); // Lc
System.arraycopy(aid, 0, commandApdu, 5, aid.length);
commandApdu[commandApdu.length - 1] = (byte)0x00; // Le
return commandApdu;
}
然后您可以将此类 APDU 命令发送到通过 reader-模式发现的 tag/HCE 设备 API:
public abstract void onTagDiscovered(Tag tag) {
IsoDep isoDep = IsoDep.get(tag);
if (isoDep != null) {
try {
isoDep.connect();
byte[] result = isoDep.transceive(selectApdu(SelectAID));
} except (IOException ex) {
} finally {
try {
isoDep.close();
} except (Exception ignored) {}
}
}
}
我的应用程序的AID是F239856324897348
,我已经为它构建了一个SelectAID APDU。现在我如何将它实际发送到使用主机卡仿真的接收 Android 设备。
我已经创建了我的 HCE 服务来响应 APDU,就像在这个线程中一样:
public static byte[] SelectAID = new byte[]{
(byte) 0xF2, (byte) 0x39, (byte) 0x85, (byte) 0x63,
(byte) 0x24, (byte) 0x89, (byte) 0x73, (byte) 0x48};
private void commandAPDU(byte[] apdu){
//where do I go from here...
}
commandAPDU(SelectAID);
APDU 的格式在 ISO/IEC 7816-4 中定义。典型的 SELECT(通过 AID)命令如下所示:
+-----+-----+-----+-----+-----+-------------------------+-----+ | CLA | INS | P1 | P2 | Lc | DATA | Le | +-----+-----+-----+-----+-----+-------------------------+-----+ | 00 | A4 | 04 | 00 | XX | AID | 00 | +-----+-----+-----+-----+-----+-------------------------+-----+
您可以这样创建它:
private byte[] selectApdu(byte[] aid) {
byte[] commandApdu = new byte[6 + aid.length];
commandApdu[0] = (byte)0x00; // CLA
commandApdu[1] = (byte)0xA4; // INS
commandApdu[2] = (byte)0x04; // P1
commandApdu[3] = (byte)0x00; // P2
commandApdu[4] = (byte)(aid.length & 0x0FF); // Lc
System.arraycopy(aid, 0, commandApdu, 5, aid.length);
commandApdu[commandApdu.length - 1] = (byte)0x00; // Le
return commandApdu;
}
然后您可以将此类 APDU 命令发送到通过 reader-模式发现的 tag/HCE 设备 API:
public abstract void onTagDiscovered(Tag tag) {
IsoDep isoDep = IsoDep.get(tag);
if (isoDep != null) {
try {
isoDep.connect();
byte[] result = isoDep.transceive(selectApdu(SelectAID));
} except (IOException ex) {
} finally {
try {
isoDep.close();
} except (Exception ignored) {}
}
}
}