public static extern int NCryptProtectSecret(
[In] SafeProtectionDescriptorHandle hDescriptor,
[In] uint dwFlags,
[In] byte[] pbData,
[In] uint cbData,
[In] IntPtr pMemPara,
[In] IntPtr hWnd,
[Out] out SafeLocalAllocHandle ppbProtectedBlob,
[Out] out uint pcbProtectedBlob);
public static extern int NCryptCreateProtectionDescriptor(
[In, MarshalAs(UnmanagedType.LPWStr)] string pwszDescriptorString,
[In] ProtectionDescriptorCreationFlags dwFlags,
[Out] out SafeProtectionDescriptorHandle phDescriptor);
