ACR122智能读写器二次开发.docx

说明：此文档基于手机端扫描NFC（Mifare Ultralight）卡的功能来介绍ACR122U智能卡读写器的二次开发过程实现。其他类卡的细节说明请参照官网的接口说明，官网地址：.hk/cn/读写器交互流程：一、 连接读写器1、 创建资源管理器的上下文。函数原型：LONG SCardEstablishContext(DWORD dwScope, LPCVOID pvReserved1, LPCVOID pvReserved2, LPSCARDCONTEXT phContext );/*各个参数的含义：（1）dwScope：输入类型；资源管理上下文范围。（2）pvReserved1：输入类型；保留1。为0/null。（3）pvReserved2：输入类型；保留2。为0/null。（4）phContext：输出类型；建立的资源管理器上下文的句柄。返回值：成功：SCARD_S_SUCCESS。失败：错误信息。*/2、 获取命名读写器组中读写器列表，并去除重复名称。函数原型：LONG SCardListReaders(SCARDCONTEXT hContext, LPCTSTR mszGroups, LPTSTR mszReaders, LPDWORD pcchReaders );/*各个参数的含义：（1）hContext：输入类型；管理上下文句柄。SCardEstablishContext()获得。（2）mszGroups：输入类型；读写器组名称。CE中可以为NULL获取所有读写器。（3）mszReaders：输入类型；多字符串读写器名称，可为null。（4）pcchReaders：输出类型；缓冲区字符个数，返回实际填充的字符个数。返回值：成功：SCARD_S_SUCCESS。失败：错误信息。*/二、 读取智能卡信息1、 建立智能卡连接函数原型：LONG SCardConnect(SCARDCONTEXT hContext, LPCTSTR szReader, DWORD dwShareMode, DWORD dwPreferredProtocols, LPSCARDHANDLE phCard, LPDWORD pdwActiveProtocol );/*各个参数的含义：（1）hContext：输入类型；管理上下文句柄。SCardEstablishContext()获得。（2）szReaderName：输入类型；包含目标卡的读写器字符串指针。（3）dwShareMode：输入类型；其他应用程序是否可以建立连接。（3）dwPrefProtocol：输入类型；可接受的连接协议。（3）phCard：输出类型；连接句柄指针。（4）pdwActiveProtocol：输出类型；活动协议的指针。返回值：成功：SCARD_S_SUCCESS。失败：错误信息。*/2、 向智能卡发送指令函数原型：LONG SCardTransmit(SCARDHANDLE hCard, LPCSCARD_I0_REQUEST pioSendPci, LPCBYTE pbSendBuffer, DWORD cbSendLength, LPSCARD_IO_REQUEST pioRecvPci, LPBYTE pbRecvBuffer, LPDWORD pcbRecvLength); /*各个参数的含义：（1）hCard：输入类型；由函数SCardConnect返回的连接句柄。（2）pioSendPci：输入类型；指令的协议头结构的指针，由SCARD_IO_REQUEST结构定义。后面是使用的协议的协议控制信息。一般使用系统定义的结构，SCARD_PCI_T0（T=0协议）、 SCARD_PCI_T1（T=1协议）、SCARD_PCI_RAW（原始协议）。（3）pbSendBuffer：输入类型；要发送到智能卡的数据的指针。（4）cbSendLength：输入类型；pbSendBuffer的字节数目。（5）pioRecvPci：输入输出类型；指令协议头结构的指针，后面是使用的协议的协议控制信息，如果不返回协议控制信息，可以为NULL。（6）pbRecvBuffer：输入输出类型；从智能卡返回的数据的指针。（7）pcbRecvLength：输入输出类型；pbRecvBuffer的大小和实际大小。返回值：成功：SCARD_S_SUCCESS。失败：错误信息。*/三、 关闭读写器连接1、 断开智能卡连接函数原型：LONG SCardDisconnect(SCARDHANDLE hCard, DWORD dwDisposition );/*各个参数的含义：（1）hCard：输入类型；由函数SCardConnect返回的连接句柄。（2）dwDisposition：输入类型；断开连接时对智能卡的操作。取值：SCARD_EJECT_CARD-弹出智能卡；SCARD_LEAVE_CARD-不做任何操作；SCARD_RESET_CARD-复位智能卡；SCARD_UNPOWER_CARD-给智能卡掉电。返回值：成功：SCARD_S_SUCCESS。失败：错误信息。*/2、 关闭建立的资源管理器上下文函数原型：LONG SCardReleaseContext(SCARDCONTEXT hContext );/*各个参数的含义：（1）hContext：输入类型；管理上下文句柄。SCardEstablishContext()获得。返回值：成功：SCARD_S_SUCCESS。失败：错误信息。*/读写器驱动安装：读写器的驱动安装过程略过，产品附带光盘自带windowsXP、vista等系统的安装驱动（也可Internet自动安装），win7、win8的系统驱动需要手动下载安装（Internet自动更新会安装失败）。读写器接口描述：一、读写器检测到PICC后，一个ATR会被发送到PC/SC驱动来识别PICC。ATR格式如下图：例如：Mifare Ultralight卡的ATR=3B 8F 80 01 80 4F 0C A0 00 00 03 06 03 00 03 00 00 00 00 6Ah二、Mifare Ultralight卡的内存结构：Mifare Ultralight卡可自由访问，不需要密钥验证。三、读取二进制块数据APDU结构：P2：1个字节，待访问的内存块。Le：1个字节，最大为16。响应状态码：例如：读取第0x04页4个字节 APDU=FF B0 00 04 04h读取0x04、0x05页数据 APDU=FF B0 00 04 08h最多可同时读取四页内容。四、 写二进制数据APDU结构：P2：1个字节，待更新的起始块。Le：1个字节，最大为4（Mifare 1K/4K卡最大为16）。响应状态码：例如：更新第0x04页数据为01 01 02 02 ADPU=FF 06 00 04 04 01 01 02 02h代码实现：1、类（ModWinsCard.cs）：using System;using System.Text;using System.Runtime.InteropServices;using System.Security; namespace NFC public class ModWinsCard StructLayout(LayoutKind.Sequential) public struct SCARD_IO_REQUEST public int dwProtocol; public int cbPciLength; public const int SCARD_S_SUCCESS = 0; public const int SCARD_SCOPE_USER = 0; public const int SCARD_SHARE_SHARED = 2; public const int SCARD_PROTOCOL_T0 = 0x01; / T=0 is the active protocol. public const int SCARD_PROTOCOL_T1 = 0x02; / T=1 is the active protocol. /*= 错误代码=*/ public const int SCARD_F_INTERNAL_ERROR = -2146435071; public const int SCARD_E_CANCELLED = -2146435070; public const int SCARD_E_INVALID_HANDLE = -2146435069; public const int SCARD_E_INVALID_PARAMETER = -2146435068; public const int SCARD_E_INVALID_TARGET = -2146435067; public const int SCARD_E_NO_MEMORY = -2146435066; public const int SCARD_F_WAITED_TOO_LONG = -2146435065; public const int SCARD_E_INSUFFICIENT_BUFFER = -2146435064; public const int SCARD_E_UNKNOWN_READER = -2146435063; public const int SCARD_E_TIMEOUT = -2146435062; public const int SCARD_E_SHARING_VIOLATION = -2146435061; public const int SCARD_E_NO_SMARTCARD = -2146435060; public const int SCARD_E_UNKNOWN_CARD = -2146435059; public const int SCARD_E_CANT_DISPOSE = -2146435058; public const int SCARD_E_PROTO_MISMATCH = -2146435057; public const int SCARD_E_NOT_READY = -2146435056; public const int SCARD_E_INVALID_VALUE = -2146435055; public const int SCARD_E_SYSTEM_CANCELLED = -2146435054; public const int SCARD_F_COMM_ERROR = -2146435053; public const int SCARD_F_UNKNOWN_ERROR = -2146435052; public const int SCARD_E_INVALID_ATR = -2146435051; public const int SCARD_E_NOT_TRANSACTED = -2146435050; public const int SCARD_E_READER_UNAVAILABLE = -2146435049; public const int SCARD_P_SHUTDOWN = -2146435048; public const int SCARD_E_PCI_TOO_SMALL = -2146435047; public const int SCARD_E_READER_UNSUPPORTED = -2146435046; public const int SCARD_E_DUPLICATE_READER = -2146435045; public const int SCARD_E_CARD_UNSUPPORTED = -2146435044; public const int SCARD_E_NO_SERVICE = -2146435043; public const int SCARD_E_SERVICE_STOPPED = -2146435042; public const int SCARD_W_UNSUPPORTED_CARD = -2146435041; public const int SCARD_W_UNRESPONSIVE_CARD = -2146435040; public const int SCARD_W_UNPOWERED_CARD = -2146435039; public const int SCARD_W_RESET_CARD = -2146435038; public const int SCARD_W_REMOVED_CARD = -2146435037; public ModWinsCard() / / TODO: Add constructor logic here / DllImport(winscard.dll) public static extern int SCardEstablishContext(int dwScope, int pvReserved1, int pvReserved2, ref int phContext); DllImport(winscard.dll) public static extern int SCardReleaseContext(int phContext); DllImport(winscard.dll) public static extern int SCardConnect(int hContext, string szReaderName, int dwShareMode, int dwPrefProtocol, ref int phCard, ref int ActiveProtocol); DllImport(winscard.dll) public static extern int SCardDisconnect(int hCard, int Disposition); DllImport(winscard.DLL, EntryPoint = SCardListReadersA, CharSet = CharSet.Ansi) public static extern int SCardListReaders( int hContext, byte Groups, byte Readers, ref int pcchReaders ); DllImport(winscard.dll) public static extern int SCardTransmit(int hCard, ref SCARD_IO_REQUEST pioSendRequest, ref byte SendBuff, int SendBuffLen, ref SCARD_IO_REQUEST pioRecvRequest, ref byte RecvBuff, ref int RecvBuffLen); 2、实现代码：using System;using System.Collections.Generic;using System.ComponentModel;using System.Drawing;using System.Data;using System.Linq;using System.Text;using System.Windows.Forms;using System.Runtime.InteropServices;using System.Security;namespace NFC public partial class UC : UserControl private int retCode, hContext, hCard, Protocol; private byte SendBuff = new byte263; private byte RecvBuff = new byte263; private int SendLen, RecvLen, Aprotocol; private ModWinsCard.SCARD_IO_REQUEST pioSendRequest; public UC() InitializeComponent(); / / 创建资源管理器并获取系统连接的读卡器名称 / / private string Init_ACR122() string ReaderList = + Convert.ToChar(0); int indx; int pcchReaders = 0; string rName = ; /创建资源管理器 retCode = ModWinsCard.SCardEstablishContext(ModWinsCard.SCARD_SCOPE_USER, 0, 0, ref hContext); if (retCode != ModWinsCard.SCARD_S_SUCCESS) return 创建资源管理器失败！; /系统中连接的读写器数量 retCode = ModWinsCard.SCardListReaders(this.hContext, null, null, ref pcchReaders); if (retCode != ModWinsCard.SCARD_S_SUCCESS) return 读取读写器列表失败！; byte ReadersList = new bytepcchReaders; / 获取命名读写器组中读写器列表 retCode = ModWinsCard.SCardListReaders(this.hContext, null, ReadersList, ref pcchReaders); if (retCode != ModWinsCard.SCARD_S_SUCCESS) return 获取读写器名称失败！; rName = ; indx = 0; /将读写器列表转换为字符串 while (ReadersListindx != 0) while (ReadersListindx != 0) rName = rName + (char)ReadersListindx; indx = indx + 1; break; /连接NFC卡 retCode = ModWinsCard.SCardConnect(hContext, rName, ModWinsCard.SCARD_SHARE_SHARED, ModWinsCard.SCARD_PROTOCOL_T0 | ModWinsCard.SCARD_PROTOCOL_T1, ref hCard, ref Protocol); if (retCode != ModWinsCard.SCARD_S_SUCCESS) return 连接智能卡失败！; else return 连接智能卡成功！; public string Write_Card(string StrCard) int indx; string tmpStr; byte tmpb = Encoding.UTF8.GetBytes(StrCard); string strResult = Init_ACR122(); if (strResult != 连接智能卡成功！) return strResult; ClearBuffers(); SendLen = 0x09; RecvLen = 0x02; SendBuff0 = 0xFF; / CLA SendBuff1 = 0xD6; / INS SendBuff2 = 0x00; / P1 for (indx = 4; indx = 8; indx+) SendBuff3 = (byte)indx; SendBuff4 = 0x04; /手机端采用Android开发，数据内存0x040x08页的内容固定。 switch (indx) case 4: SendBuff5 = 0x01; SendBuff6 = 0x03; SendBuff7 = 0xA0; SendBuff8 = 0x10; break; case 5: SendBuff5 = 0x44; SendBuff6 = 0x03; SendBuff7 = (byte)(13 + tmpb.Length); /数据包长度 SendBuff8 = 0xD2; break; case 6: SendBuff5 = 0x0A; SendBuff6 = (byte)tmpb.Length; /数据内容长度 SendBuff7 = 0x74; SendBuff8 = 0x65; break; case 7: SendBuff5 = 0x78; SendBu