Securing individual RSS feeds

[eluser]Philipp Gérard[/eluser]
Hey there,

I am looking for a solution to secure individual RSS feeds (in this case from a bulletin board module I wrote with CI for a larger site) using some token algorithm. Imagine I want to have an URI like 'mysite.com/forum/feed/sa9219021098sa9s09880gh98h0' for the feed where the last part is the token that identifies the user and thus prevents others from acessing his personal feed/data because this token is private. Does anyone know a default implementation of this and what obstacles to expect and avoid? Is there a CI class somewhere floating around waiting for me to pick and implement into my site? Any experience? I'd be happy to share my class once I've done working on it if I have to implement it myself.

Thanks in advance,
Philipp