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MrAllan

Member

Registered: 2008-12-08

Posts: 132

Question about P2P chat program

Hey all,

I'm writing (read: will be writing) a simple chat program. To spice things up, I'd like it to use P2P-technologies (JXTA, to be specific).
Now, one very important part of a chat program is that it requires the user to register (with a username and a password). Then, the user can obviously only log in with his or her correct credentials.

Now, how would you implement such a registration / authentication system with P2P-technologies? Or is such a system only possible with at least one central server that stores usernames & their corresponding passwords?

Thanks for any ideas shared!

- MrAllan

Shapeshifter

Member

Registered: 2008-03-11

Posts: 231

Re: Question about P2P chat program

Just did a quick google search for "p2p authentication implementation" and found this:

http://www.springerlink.com/content/20p32y24t9mg90h9/
Authentication and Access Control in P2P Network
Book Series    Lecture Notes in Computer Science
Publisher    Springer Berlin / Heidelberg
ISSN    0302-9743 (Print) 1611-3349 (Online)
Volume    Volume 3032/2004
Book    Grid and Cooperative Computing
DOI    10.1007/b97162
Copyright    2004
ISBN    978-3-540-21988-0
Category    Session 2: Peer to Peer Computing
Pages    468-470
Subject Collection    Computer Science
SpringerLink Date    Monday, April 19, 2004

And I found the extended abstract here: http://cs.nju.edu.cn/gchen/paper/gcc2003/pdf/377.pdf

And this - not about control authentication but data authentication but it might give you some ideas:
http://www.cs.brown.edu/cgc/stms/papers/adht.pdf

MrAllan

Member

Registered: 2008-12-08

Posts: 132

Re: Question about P2P chat program

Thanks, Shapeshifter!