(Unicode C++) WPA Key Calculation from PassPhrase to Hex

Demonstrates how to calculate a WPA key from a passprhase and network SSID.

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#include <CkCrypt2W.h>

void ChilkatSample(void)
    {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkCrypt2W crypt;

    const wchar_t *wpaHexKey = 0;

    // The "ps" is the WPA passphrase
    const wchar_t *pw = L"password";
    const wchar_t *pwCharset = L"ansi";

    // Hash algorithms may be: sha1, md2, md5, etc.
    const wchar_t *hashAlg = L"sha1";

    // Specify the SSID in hex:
    // For example, if the SSID is "ABC", then the 
    // hex values for these us-ascii chars is "414243"
    const wchar_t *ssidHex = L"414243";

    // The WPA key calculation will always use 4096 iterations.
    int iterationCount = 4096;

    // The WPA hex output should be 256 bits.
    int outputBitLen = 256;

    // Indicate that "hex" is to be returned.
    const wchar_t *enc = L"hex";

    wpaHexKey = crypt.pbkdf2(pw,pwCharset,hashAlg,ssidHex,iterationCount,outputBitLen,enc);

    wprintf(L"%s\n",wpaHexKey);
    }