SharePoint 2010 - Security Trimming

I came across a requirement where I have to hide the Ribbon for the readers in SharePoint 2010.
Following is the snippit of the control to do the magic:

<Sharepoint:SPSecurityTrimmedControl runat="server" Permissions="ManageLists">
      Your ASP.NET control goes here
</SharePoint:SPSecurityTrimmedControl>

Permission values could be following:

• ManageLists
• ManageWeb