安卓 NFC 卡模拟

StackOverFlow:Android HCE: are there rules for AID?

主机卡模拟Demo

第一步

新建类CardEmulatorService 继承 HostApduService，实现方法public byte[] PRocessCommandApdu(byte[] commandApdu, Bundle extras)

@Overridepublic byte[] processCommandApdu(byte[] commandApdu, Bundle extras) {    byte[] ret = null;    Log.d("cyb", "processCommandApdu commandApdu=" + Hex.toHexString(commandApdu));    Toast.makeText(getapplicationContext(), Hex.toHexString(commandApdu), Toast.LENGTH_SHORT).show();    String MF_NAME = "1PAY.SYS.DDF01";    byte[] selectMF = Hex.hexToBytes("00A404000E" + Hex.toHexString(PbocCmd.MF_Name) + "00");    Log.d("cyb", "processCommandApdu selectMF=" + Hex.toHexString(selectMF));    if(Arrays.equals(commandApdu, selectMF)){ // 选择MF        ret = Hex.hexToBytes("6F15840E315041592E5359532E4444463031A5038801019000");    }else if(Arrays.equals(commandApdu, Hex.hexToBytes("00A40000023F0100"))){ // 选择应用        ret = Hex.hexToBytes("6F088400A5049F0801029000");    }else if(Arrays.equals(commandApdu, Hex.hexToBytes("00A4000002000400"))){ // 选择文件        ret = Hex.hexToBytes("9000");    }else if(Arrays.equals(commandApdu, Hex.hexToBytes("00B0000000"))){ // 读文件        ret = Hex.hexToBytes("4F545142475535394352555245304D369000");    }    Log.d("cyb", "processCommandApdu ret=" + Hex.toHexString(ret));    return ret;}
第二步
在res/xml 文件夹新建aid_list.xml
<?xml version="1.0" encoding="utf-8"?><host-apdu-service xmlns:android="http://schemas.android.com/apk/res/android"    android:description="@string/service_name"    android:requireDeviceUnlock="false">    <aid-group android:description="@string/card_title" android:category="other">        <!--应用名称 1PAY.SYS.DDF01 对应的二进制-->        <aid-filter android:name="315041592E5359532E4444463031"/>    </aid-group></host-apdu-service>
第三步
在AndroidManifest.xml中配置Service
<uses-permission android:name="android.permission.NFC" /><uses-feature    android:name="android.hardware.nfc"    android:required="true" /><uses-feature    android:name="android.hardware.nfc.hce"    android:required="true" />            <!-- Service for handling communication with NFC terminal. -->    <service        android:name=".CardEmulatorService"        android:exported="true"        android:permission="android.permission.BIND_NFC_SERVICE">        <!-- Intent filter indicating that we support card emulation. -->        <intent-filter>            <action android:name="android.nfc.cardemulation.action.HOST_APDU_SERVICE" />            <category android:name="android.intent.category.DEFAULT" />        </intent-filter>        <!-- Required XML configuration file, listing the AIDs that we are emulating cards             for. This defines what protocols our card emulation service supports. -->        <meta-data            android:name="android.nfc.cardemulation.host_apdu_service"            android:resource="@xml/aid_list" />    </service>
读卡器代码
println("++++++++++++++ start ++++++++++++++++");println("开始读文件...");isoDep.connect();Log.d("cyb", "Hex.toHexString(PbocCmd.MF_Name)=" + Hex.toHexString(PbocCmd.MF_Name));//                byte[] select_mf = PbocCmd.selectByName(isoDep, PbocCmd.MF_Name);byte[] select_mf = PbocCmd.selectByName(isoDep, PbocCmd.MF_Name);println("选择MF返回值=" + Hex.toHexString(select_mf));if (IsoDepUtils.isNoError(select_mf)) {    // 选择应用    byte[] appId = {0x3F, 0x01};    byte[] response = PbocCmd.selectById(isoDep, appId);    if (IsoDepUtils.isNoError(response)) {        println("选择文件=" + Hex.toHexString(appId));        println("选择文件返回值=" + Hex.toHexString(response));        println("卡文件名称=" + new SelectResult(response).getName());        byte[] fileId = {0x00, 0x04};        // 选择文件        byte[] response_f = PbocCmd.selectById(isoDep, fileId);        if (IsoDepUtils.isNoError(response_f)) {            println("选择文件=" + Hex.toHexString(fileId));            println("选择文件返回值=" + Hex.toHexString(response_f));            println("卡文件名称=" + new SelectResult(response_f).getName());            byte[] read = PbocCmd.readBinary(isoDep);            if(IsoDepUtils.isNoError(read)){                println(Hex.toHexString(read));                println(new String(read, "utf-8"));            }        }    }}println("++++++++++++++ end ++++++++++++++++/n/n/n/n/n");isoDep.close();