DWORD  Encoder::Base64Encoding(CONST PBYTE pbBinary, DWORD cbBinary, PTSTR *pszOut) {
    DWORD dwStringLen = 0;
    if (CryptBinaryToString(pbBinary, cbBinary, CRYPT_STRING_BASE64, NULL, &dwStringLen)) {
        *pszOut = (PTSTR)CoTaskMemAlloc(sizeof(TCHAR) * dwStringLen);
        if (*pszOut) {
            if (!CryptBinaryToString(pbBinary, cbBinary, CRYPT_STRING_BASE64, *pszOut, &dwStringLen)) {
                CoTaskMemFree(*pszOut);
            }
        }
    }
    return dwStringLen;
}