
Cypherpunks, I've been toying lately with "tying" the remailers at pax and penet together. Briefly, the anonymous service at anon.penet.fi supports anonymous remailing (but you must register your id), anonymous posting, and anonymous forwarding. The remailer at pax.tpa.com.au support anonymous remailing (runs pgp, must register your key for encryption service) and anonymous posting. For more info, get the help files by mailing to help@anon.penet.fi and anon.info@pax.tpa.com.au. Anyway, my idea is as follows: somehow get one of these services to establish an id on the other one, and also establish a path back to you. Then, you should be able to receive mail by having it sent to an anonymous id on one of the services, which will then forward it to another anonymous id on the other service, which will then forward to you. Of course, as cypherpunks, we have several of our own cryptographically protected remailers, but I thought I'd explore using these others ones also. If you don't have an id already established on either service, you can get one by simple trying to use it (for example, posting a message). Since the remailer at anon.penet.fi allows anonymous forwarding (using the % notation), I established a double system as follows: (for convenience I shall reveal the anonymous id's I was assigned by this test procedure; @penet shall mean @anon.penet.fi and @pax shall mean @pax.tpa.com.au) I mailed to anon.post.alt.test%pax.tpa.com.au@anon.penet.fi from barrus@tree.egr.uh.edu. This went to anon.penet.fi, where I was allocated an anonymous id for barrus@tree. The id I was given for barrus@tree was an5022@penet. Then, penet forwarded to anon.post.alt.test@pax.tpa.com.au (because of the % notation), which resulted in two things: a post to alt.test, and the establishing of an id on pax for the anonymous id on penet - anon.435@pax. After a few minutes, I recieved acknowledgment of my post to alt.test, sent from penet. So pax sent the acknowledgement to the anonymous id at penet, which then sent it to me - barrus@tree. I also watched for my post to alt.test to appear, which it did. So now, mail sent to anon.435@pax gets forwarded to me via penet. Then, I tried the process in reverse. I sent to the anonymous pax allocated from my other account (elee9sf@menudo.uh.edu). I sent from the other account because I already have an anonymous id for that one, and I wanted to keep new account allocation to a minimum, but as it turns out I think I messed up. Anyway, the mail I sent made it to barrus@tree (via pax and penet), but I was allocated another anonymous id from penet (an5030@penet), and the notice came to elee9sf! After thinking about it some more, I realized that what that acknowledgement must be. When I mailed to anon.435@pax from elee9sf, I wasn't allocated an anonymous id because I have one. So pax sent the message to an5022@penet. But penet hadn't seen a message from anon.435@pax, so it allocated another id, and sent to acknowledgement back to anon.435@pax. But for some reason, the remailer at pax didn't send this to an5022@penet - it jumped it and responded to my account elee9sf@menudo.uh.edu. So the pax service seems fairly intelligent. Or there is a bug :-) Then, I tried to mail to anon.435@pax from barrus@tree. I thought I would be assigned an anonymous id at pax for barrus@tree, but I wasn't. Actually, for some reason, I was mailed the acknowledgement of yet another anonymous id, an5047@penet! But, my original goal was to establish an anonymous id on pax which would forward to an anonymous id on penet (and vice versa), and I succeeded: mail sent to anon.435@pax goes to barrus@tree via penet mail sent to an5030@penet goes to elee9sf@menudo via pax as an unplanned effect: mail sent to anon.437@pax goes to elee9sf@menudo via penet mail sent to an5047@penet goes to barrus@tree via pax These are the anonymous id's I beleive I've generated because of this procedure: an5022@penet, an5030@penet, an5047@penet (I don't understand this one), anon.435@pax, anon.437@pax (I don't understand this one either). I figured I would use four id's: one from penet for barrus@tree, one from pax for barrus@tree, one from penet for pax, and one from pax for penet. For some reason, when I mail to anon.437@pax or an5047@penet from barrus@tree, the mail doesn't arrive in either of my accounts. So I'm still trying to sort out this mess before I mail to the administrators at both sites, explain what happened, and have these various id's deleted. Anybody with an id already established on pax or penet is welcome to mail to me at anon.208@pax or an5030@penet to help me figure out if it worked (I've run out of accounts to test this from and I don't want to involve elee7h5@rosebud where I'm running a remailer). I think the step I may have erred was mailing to anon.435@pax from elee9sf, where I have an id. Maybe by mailing from barrus@tree I would have been assigned an id, and recieved acknowledgement of an id from penet for the id at pax, and possibly an5047@penet wouldn't have been generated. Some uses of this I can think of are of course mailing via cypherpunk remailers to the first link in the pax/penet remailers chain. This would hide our remailers from others, since pax and penet are well known anonymous services. I haven't thought of a way to send messages (other than posting to usenet) via pax/penet. So I could post a message, as described above, and collect responses via a double anonymous reply. Anyway, what do you think?? Any ideas or suggestions? /-----------------------------------\ | Karl L. Barrus | | barrus@tree.egr.uh.edu (NeXTMail) | | elee9sf@menudo.uh.edu | \-----------------------------------/

I've been toying lately with "tying" the remailers at pax and penet together. Briefly, the anonymous service at anon.penet.fi supports anonymous remailing (but you must register your id), anonymous posting, and anonymous forwarding. The remailer at pax.tpa.com.au support anonymous remailing (runs pgp, must register your key for encryption service) and anonymous posting. For more info, get the help files by mailing to help@anon.penet.fi and anon.info@pax.tpa.com.au.
Well, let's start by saying that fo%bar@blach addresses are pretty error prone, as there are a lot of brain-damaged mailers out there. Much safer to use the X-Anon-To: header for this kind of stuff. See the help file from help@anon.penet.fi for more info. Secondly, currently anon.penet.fi strips off PGP messages and signature blocks. I am going to fix the .sig stripper Real Soon Now.... Thirdly, I notice a lot of mailers get "From:" and "Sender:" (or envelope) addresses screwed up. Anon.penet.fi puts the anon id in the "From:" field, but makes "Sender:" point to the anon admin, to catch mail bounces that might reveal the true identity of an anon id. I don't know how pax.tpa.com.au handles this....
These are the anonymous id's I beleive I've generated because of this procedure: an5022@penet, an5030@penet, an5047@penet (I don't understand this one), anon.435@pax, anon.437@pax (I don't understand this one either). I figured I would use four id's: one from penet for barrus@tree, one from pax for barrus@tree, one from penet for pax, and one from pax for penet. For some reason, when I mail to anon.437@pax or an5047@penet from barrus@tree, the mail doesn't arrive in either of my accounts. So I'm still trying to sort out this mess before I mail to the administrators at both sites, explain what happened, and have these various id's deleted. Anybody with an id already established on pax or penet is welcome to mail to me at anon.208@pax or an5030@penet to help me figure out if it worked (I've run out of accounts to test this from and I don't want to involve elee7h5@rosebud where I'm running a remailer). I think the step I may have erred was mailing to anon.435@pax from elee9sf, where I have an id. Maybe by mailing from barrus@tree I would have been assigned an id, and recieved acknowledgement of an id from penet for the id at pax, and possibly an5047@penet wouldn't have been generated.
I'll check on those id's tomorrow. It's 11pm out here, and I have a specification to finish for a meeting tomorrow morning.... Julf (an0@anon.penet.fi)
participants (2)
-
Johan Helsingius
-
Karl L. Barrus