Communicate with a smart card reader via an Android USB host

Question

I am trying to send a command to a smart card. I am using the Gemalto IDBridge CT30 (PC TWIN reader) and the IDBridge K30 is connected to the Android device via USB.

I am trying to send a SELECT APDU command via USB:

boolean claim = openedConnection.claimInterface(usbInterface, true);
byte[] data = new byte[]{
        (byte) 0x00, (byte) 0xA4, (byte) 0x04, (byte) 0x0C,
        (byte) 0x07, (byte) 0xA0, (byte) 0x00, (byte) 0x00,
        (byte) 0x01, (byte) 0x18, (byte) 0x45, (byte) 0x4E};

After that I get the answer:

final int dataTransferred = this.openedConnection.bulkTransfer(endPointOut, data, data.length, TIMEOUT_MS);
if(!(dataTransferred == 0 || dataTransferred == data.length)) {
    throw new Exception("Error durring sending command [" + dataTransferred + " ; " + data.length + "]"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}

final byte[] responseBuffer = new byte[endPointIn.getMaxPacketSize()];
final int dataTransferred = this.openedConnection.bulkTransfer(this.endPointIn, responseBuffer, responseBuffer.length, TIMEOUT_MS);
Console.writeLine("USB Retrieve: " + dataTransferred + " " + responseBuffer.length);
if(dataTransferred >= 0){
    return responseBuffer;
}
throw new Exception("Error durring receinving response [" + dataTransferred + "]");

This answer

0x00 0x00 0x00 0x00 0x00 0xA0 0x00 0x41 0x03 0x00

However, I should get a response according to UsbDevice ). 0x90 0x00

Answer 1

CCID USB. APDU ( -) APDU . CCID (. USB-). :

• PC_to_RDR_IccPowerOn .

  62 00000000 00 00 00 0000 
  |  |        |  |  |  |    |
  |  |        |  |  |  |    \--> Empty data field
  |  |        |  |  |  \-------> Unused, set to 0x0000
  |  |        |  |  \----------> Power select: 0x00 indicates automatic selection
  |  |        |  \-------------> Sequence number (increment for each command)
  |  |        \----------------> Slot number (seems to be zero for your device)
  |  \-------------------------> Length of data field (LSB first)
  \----------------------------> Message type: 0x62 indicates PC_to_RDR_IccPowerOn
  

• ATR RDR_to_PC_DataBlock.

  80 18000000 00 00 00 00 00 3BBF11008131FE45455041000000000000000000000000F1 
  |  |        |  |  |  |  |  |
  |  |        |  |  |  |  |  \--> Data field: ATR
  |  |        |  |  |  |  \-----> Level parameter
  |  |        |  |  |  \--------> Error register (should be zero on success)
  |  |        |  |  \-----------> Status register (should be zero on success)
  |  |        |  \--------------> Sequence number (matches the sequence number of the command)
  |  |        \-----------------> Slot number (matches the slot number of the command)
  |  \--------------------------> Length of data field (LSB first)
  \-----------------------------> Message type: 0x80 indicates RDR_to_PC_DataBlock
  

• APDU, PC_to_RDR_XfrBlock

  6F 0C000000 00 01 00 0000 00A4040C07A000000118454E
  |  |        |  |  |  |    |
  |  |        |  |  |  |    \--> Data field: Command APDU
  |  |        |  |  |  \-------> Level parameter (0x0000 for normal length APDUs)
  |  |        |  |  \----------> Block waiting timeout
  |  |        |  \-------------> Sequence number (increment for each command)
  |  |        \----------------> Slot number (seems to be zero for your device)
  |  \-------------------------> Length of data field (LSB first)
  \----------------------------> Message type: 0x6F indicates PC_to_RDR_XfrBlock
  

• APDU RDR_to_PC_DataBlock.

  80 02000000 00 01 00 00 00 9000 
  |  |        |  |  |  |  |  |
  |  |        |  |  |  |  |  \--> Data field: Response APDU
  |  |        |  |  |  |  \-----> Level parameter
  |  |        |  |  |  \--------> Error register (should be zero on success)
  |  |        |  |  \-----------> Status register (should be zero on success)
  |  |        |  \--------------> Sequence number (matches the sequence number of the command)
  |  |        \-----------------> Slot number (matches the slot number of the command)
  |  \--------------------------> Length of data field (LSB first)
  \-----------------------------> Message type: 0x80 indicates RDR_to_PC_DataBlock
  

• 3 4 APDU ( ).

ATR T = 1 , APDU T = 1 TPDU ( ). I- APDU :

00 00 0C 00A4040C07A000000118454E 15
|  |  |  |                        |
|  |  |  |                        \--> LRC (due to missing TC in ATR): XOR checksum over all other bytes
|  |  |  \---------------------------> INF: APDU
|  |  \------------------------------> LEN: length of INF field
|  \---------------------------------> PCB: toggle between 0x00 and 0x40 for every other I-block
\------------------------------------> NAD: node addressing

, PC_to_RDR_XfrBlock :

6F 10000000 00 01 00 0000  00 00 0C 00A4040C07A000000118454E 15

, I-, R- S-, , / .

Answer 2

, , - SELECT AID, . , , ,

• P2 '0C'
• LE ( , , , USB)

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