internal static extern bool CryptStringToBinary( [In] string pszString, [In] int cchString, [In] CrypBinaryFlags dwFlags, [In] IntPtr pbBinary, [In, Out] ref int pcbBinary, [Out] out int pdwSkip, [Out] out int pdwFlags);
internal static extern bool CryptBinaryToString( [In] byte[] pbBinary, [In] int cbBinary, [In] CrypBinaryFlags dwFlags, [In] byte[] pszString, [In, Out] ref int pcchString);