无法验证NTAG213

Question

我正在使用ACR122U NFC读取器来密码保护NTAG213 NFC标签。我想我已经设法正确地设置了密码，但之后我无法验证并更改标签。我对认证的代码如下所示：

#include <winscard.h> 
#include <iostream> 
#pragma comment(lib, "winscard.lib") 

const char *ReaderName = "ACS ACR122 0"; 
unsigned Password = 0x12345678; 

int main() 
{ 
    //Establish context 
    SCARDCONTEXT    hContext; 
    DWORD SCard_Status1 = SCardEstablishContext(SCARD_SCOPE_USER, NULL, NULL, &hContext); 
    if(SCard_Status1 != SCARD_S_SUCCESS) 
    return 1; 

    //connect to the card 
    SCARDHANDLE hCardHandle; 
    DWORD Protocol; 
    DWORD SCard_Status2 = SCardConnect(hContext, ReaderName, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T1, &hCardHandle, &Protocol); 
    if(SCard_Status2 != SCARD_S_SUCCESS) 
    { 
    SCardReleaseContext(hContext); 
    return 1; 
    } 

    SCARD_IO_REQUEST Request; 
    Request.dwProtocol = Protocol; 
    Request.cbPciLength = sizeof(SCARD_IO_REQUEST); 
    BYTE TxData[] = 
    { 
    0xFF, //CLA 
    0x00, //INS 
    0x00, //P1 
    0x00, //P2 
    0x08, //LC 
    0xD4, 
    0x40, 
    0x01, 
    0x1B, //PWD_AUTH (See data sheet) 
    Password, 
    Password >> 8, 
    Password >> 16, 
    Password >> 24, 
    }; 

    BYTE RxData[254]; 
    unsigned long RxLength = sizeof(RxData); 
    DWORD SCard_Status3 = SCardTransmit(hCardHandle, &Request, TxData, sizeof(TxData), NULL, RxData, &RxLength); 
    std::cout << "SCard_Status = " << SCard_Status3 << std::endl; 
    std::cout << "RxLength = " << RxLength << std::endl; 

    SCardDisconnect(hCardHandle, SCARD_EJECT_CARD); 
    SCardReleaseContext(hContext); 
    return 0; 
} 

这应该发送PWD_AUTH命令与PWD的NTAG213。如果密码错误，我预计会收到一个错误消息，如果密码正确，我希望收到一个错误消息。但之后SCard_Status为SCARD_S_SUCCESS，RxLength为0。如果我尝试写入标签，则会出现错误。

我无法找到任何示例显示如何执行此操作。任何人都可以看到我做错了什么？

Answer 1

我会自己回答这个问题。我设法使其通过改变TXDATA此工作：

BYTE TxData[] = 
{ 
    0xFF, //CLA 
    0x00, //INS 
    0x00, //P1 
    0x00, //P2 
    0x07, //LC 
    0xD4, 0x42, //InCommunicateThru 
    0x1B, //PWD_AUTH (See data sheet) 
    Password, 
    Password >> 8, 
    Password >> 16, 
    Password >> 24, 
}; 

我发现命令InCommunicateThru（D4 42）作为用于InDataExchange（D4 40）在数据表中的PN532，它是NFC处理器的替换在ACR122U内部。