(Unicode C) Validate a Smartcard PIN

Validates a smartcard PIN. This example only runs on Windows and requires Chilkat v9.5.0.77 or greater.

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#include <C_CkCertW.h>

void ChilkatSample(void)
    {
    HCkCertW cert;
    BOOL success;
    int pinValid;

    // Note: Requires Chilkat v9.5.0.77 or greater.

    cert = CkCertW_Create();

    CkCertW_putSmartCardPin(cert,L"000000");

    // Load the certificate on the smartcard currently in the reader (or on the USB token).
    // Pass an empty string to allow Chilkat to automatically choose the CSP (Cryptographi Service Provider).
    // See Load Certificate on Smartcard for information about explicitly selecting a particular CSP.
    success = CkCertW_LoadFromSmartcard(cert,L"");
    if (success != TRUE) {
        wprintf(L"%s\n",CkCertW_lastErrorText(cert));
        CkCertW_Dispose(cert);
        return;
    }

    // Check to see if the SmartCardPin property contains the valid PIN for the smartcard.
    pinValid = CkCertW_CheckSmartCardPin(cert);
    if (pinValid < 0) {
        wprintf(L"Unable to check the PIN validity.\n");
        wprintf(L"%s\n",CkCertW_lastErrorText(cert));
        CkCertW_Dispose(cert);
        return;
    }

    if (pinValid == 1) {
        wprintf(L"PIN is valid.\n");
    }
    else {
        wprintf(L"PIN is invalid.\n");
    }



    CkCertW_Dispose(cert);

    }