This is a method (no complete implementation) to offload the database server hosting protected objects delivered through ASP.NET (Web services will work too) by simply signing a URL to the page actually delivering the material. Example: A web site where the access checks are very complicated. When browsing, the members only see objects that they have access to, therefore we know when making img-HREFs that the member actually have access, which is why we may sign the HREF so we don't need to check again when delivering the thumbnail previews.
