Implementin RSS Feeds

[madhu_sushmi]

I am implementing RSS Feeds using JAVA. I could implement it successfully by creating XML file required for Feeds in Tomcat Server. But i am not able to implement any kind of security. I need users to enter some kind of credentials before they receive RSS Feeds. Else i need to fetch the mail id from the outlook ( RSS Reader in my case ) and display details depending on the mail id. Will it be possible to fetch this ?
Please help me .
Any ideas ?