如何从借记卡/信用卡中获取卡号和有效期？

Question

I have a card reader to read cards with chip for android (it connects via usb). I can connect to card reader and power on card itself. But I cannot understand reponse when I send APDU command. Here is my code.

String command = "00A404000E315041592E5359532E4444463031";
byte[] commandByte = apdu.s2ba(command);
byte[] prevByte = new byte[30];
int[] prevLen = new int[1];
prevLen[0] = 30;
int status = reader.SCardTransmit(commandByte, commandByte.length, prevByte, prevLen);
Log.i("ab", Integer.toString(status)+"----"+apdu.ba2s(prevByte)); 

I am getting response

09-02 23:30:19.648  25744-25744/com.nnadir.scanertest4 I/ab﹕ 0----30: 611700000000000000000000000000000000000000000000000000000000

but it must be something like this

6F 1A 84 0E 31 50 41 59 2E 53 59 53 2E 44 44 46 30 31 A5 08 88 01 01 5F 2D 02 65 6E

I am following this guide

Answer 1

I found that 6117 in response after apdu command shows that command was succesfull (61) and 17 bytes response available. So we need to send second apdu command to get that response

00C0000017 - here 17 is number of bytes we expect and now in response we get information we needed.