On Aug 22, 2006, at 4:13 PM, Ron Teitelbaum wrote:

> I need a unique image identifier.  Does anyone have any suggestions?

Why not have a class that creates a UUID when the image comes up, and  
destroys it on shutdown? That would satisfy your requirements for  
uniqueness. If you need to be able to protect the identifier from  
modification by untrusted code in the image, it gets a lot harder.  
You might need a plugin for that.

Colin