Question

所以，我有一台非接触式万事达卡和一张Visa paywave手机。我使用非接触式HID Omnikey 5427 CK。

这是我的代码：`

static boolean cardReading = true;

public static void main(String[] args) throws CardException, UnsupportedEncodingException {

    while (cardReading == true) {

    try {
    TerminalFactory factory = TerminalFactory.getDefault();
    List<CardTerminal> terminals = factory.terminals().list();
    CardTerminal terminal = terminals.get(0);

    if (!terminal.isCardPresent()) {

        continue;

    }

    System.out.println("Terminals: " + terminals);
    System.out.println("Used terminal: " + terminal);

    Card card = terminal.connect("T=0");
    System.out.println("\n\nInserted card: " + card);
    CardChannel channel = card.getBasicChannel();

    String pse = "00A404000E325041592E5359532E444446303100";
    CommandAPDU apdu = new CommandAPDU(pse.getBytes());
    ResponseAPDU r = channel.transmit(apdu);

    System.out.println("Response: " + toHex(r.getData().toString()) + " " + r);
    System.out.println("ADPU: " + toHex(apdu.getBytes().toString()) + " " + r.getSW() + " " + r.getSW1() + " " + r.getSW2() + " " + r.getNr());

    apdu = new CommandAPDU((byte)0x00, (byte)0xB2, (byte)0x01, (byte)0x0C, (byte)0x00);
    r = channel.transmit(apdu);

    cardReading = false;
    Toolkit.getDefaultToolkit().beep();

    System.out.println("Terminals: " + terminals);
    System.out.println("Used terminal: " + terminal);
    System.out.println("\n\nInserted card: " + card);
    System.out.println("Response: " + toHex(r.getData().toString()) + " " + r);
    System.out.println("ADPU: " + toHex(apdu.getBytes().toString()) + " " + r.getSW() + " " + r.getSW1() + " " + r.getSW2() + " " + r.getNr());



    System.exit(1);

    } catch(Exception e) {

        continue;

    }

    }

}

public static byte[] hexStringToByteArray(String s) {
    int len = s.length();
    byte[] data = new byte[len / 2];
    for (int i = 0; i < len; i += 2) {
        data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
                             + Character.digit(s.charAt(i+1), 16));
    }
    return data;
}

public static String toHex(String arg) {
    return String.format("%040x", new BigInteger(1, arg.getBytes()));
}

`

所以输出是：

Terminals: [PC/SC terminal HID OMNIKEY 5427 CK 0]
Used terminal: PC/SC terminal HID OMNIKEY 5427 CK 0


Inserted card: PC/SC card in HID OMNIKEY 5427 CK 0, protocol T=0, state OK
Response: 0000000000000000005b42403163343630306630 ResponseAPDU: 65 bytes, SW=9000
ADPU: 000000000000000000005b424035623665663230 36864 144 0 63
Terminals: [PC/SC terminal HID OMNIKEY 5427 CK 0]
Used terminal: PC/SC terminal HID OMNIKEY 5427 CK 0


Inserted card: PC/SC card in HID OMNIKEY 5427 CK 0, protocol T=0, state OK
Response: 0000000000000000005b42403565616235383039 ResponseAPDU: 14 bytes, SW=9000
ADPU: 0000000000000000005b42403433323065373664 36864 144 0 12

我不明白为什么回复0000000000000000005b42403565616235383039 ... 请帮忙。

此致，弗拉德。

Answer 1

正如Michael Roland所说 - 你对十六进制字符串的处理是错误的。

元错误1：使用＆＃39; byte []。toString（）＆＃39;

r.getData().toString()

byte[].toString使用默认的Object.toString()实现，该实现返回类名后跟@和Object.hashCode()的值（例如"[B@312b1dae"） - 其中不是你想要进一步处理的东西。

您可以使用Arrays.toString()方法（不执行十六进制转储）或any other method。

元错误2：使用＆＃39; String.getBytes（）＆＃39;

String pse = "00A404000E325041592E5359532E444446303100";
CommandAPDU apdu = new CommandAPDU(pse.getBytes());

不创建所需的APDU对象，因为方法String.getBytes()不执行十六进制转换，而是在平台的默认字符集中进行字符集转换，例如："1234".getBytes()给出{{1} （而不是你所期望的{ 0x31, 0x32, 0x33, 0x34 }）。

下面是一个简单的代码示例，它几乎与您的代码相同：

{ 0x12, 0x34 }

请注意一些有趣的部分：

此代码使用Apache Commons Codec进行十六进制转换
参数package test.java.so; import java.util.List; import javax.smartcardio.Card; import javax.smartcardio.CardChannel; import javax.smartcardio.CardTerminal; import javax.smartcardio.CommandAPDU; import javax.smartcardio.ResponseAPDU; import javax.smartcardio.TerminalFactory; import org.apache.commons.codec.binary.Hex; @SuppressWarnings("restriction") public class So39543402 { public static void main(String[] args) throws Exception { TerminalFactory factory = TerminalFactory.getDefault(); List<CardTerminal> terminals = factory.terminals().list(); CardTerminal terminal = terminals.get(0); Card card = terminal.connect("*"); CardChannel channel = card.getBasicChannel(); String pse = "00A404000E325041592E5359532E444446303100"; CommandAPDU apdu = new CommandAPDU(Hex.decodeHex(pse.toCharArray())); exchangeApdu(channel, apdu); apdu = new CommandAPDU(0x00, 0xB2, 0x01, 0x0C, 256); exchangeApdu(channel, apdu); } private static ResponseAPDU exchangeApdu(CardChannel channel, CommandAPDU apdu) throws javax.smartcardio.CardException { System.out.println("APDU: " + Hex.encodeHexString(apdu.getBytes())); ResponseAPDU r = channel.transmit(apdu); System.out.println("Response: " + Hex.encodeHexString(r.getBytes())); return r; } }用于"*"，它比总是请求CardTerminal.connect()协议更具通用性
您的T=0 APDU被修改为期望256字节的响应数据 - this is how this particular constructor works（您的代码会生成ISO案例1 Command-APDU，这可能不是您想要的）< / p>

另外一个注意事项：

不使用不带参数的READ RECORD方法（即使您希望将单个字符转换为字节）。始终指定所需的字符集（例如＆＃34; US-ASCII＆＃34;，＆＃34; UTF-8＆＃34;）

祝你好运！

卡的PSE不是它本应该是什么

1 个答案: