It feels like a long time since I last wrote about hash functions (though certain curmudgeonly coworkers would say not long enough!), and there were a few loose ends I've been meaning to deal with...
Aside: If my hashing efforts are new to you, more information can be found in my introduction to the ComputeFileHashes command-line tool and the subsequent release of ComputeFileHashes versions for the WPF and Silverlight platforms.  
When I first needed a managed implementation of the Go to the complete details ...