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Security / Tor Mail Gateway: Your prayers have been answered (sort of)
« on: August 20, 2013, 07:58 am »
Just came across this:
That's a message to the tor-talk mailing list by the guy who runs Torservers, so he's not some clueless newb with pie in the sky goals that are abandoned half way through development (like Bitwasp). Someone still needs to run a hidden service email server, but that's the easier part. Interfacing with clearnet anonymously was the hard part that Tormail solved before.
Interestingly, a Tor-only email server already exists:
http://365u4txyqfy72nul.onion/mail/
http://365u4txyqfy72nul.onion/wmail/notice.html
So the pieces are in place, if this mail gateway could send messages to the TSZ mail server, we effectively have a Tormail replacement.
What I really like is that they will scan and discard emails that are non PGP encrypted.
Quote
>>> This isn't gonna cut it. A Tormail replacement that's any good,
>>> that's reliable, that's censorship-resistant, that's hardened ...
>>> that will require professionals to set it up.
I don't want to imply that we are professionals, but we will soon run a
mail gateway for .onions.
The idea is that you can email @xyz.onion.to, and the mail gateway will
forward the mail to @xyz.onion. The gateway will only accept PGP mails,
and I'm thinking about enforcing TLS.
For the other way round, xyz.onion will be able to register and receive
a passphrase. With the passphrase, xyz.onion will be able to relay/send
emails as @xyz.onion.to. The gateway will also rewrite outgoing
@xyz.onion to @xyz.onion.to.
Maybe we should use client certificates instead.
Another open question is what we should do with headers. At the moment,
the configuration file (onion_anonymize_headers) explicitly removes
User-Agent, X-Enigmail, X-Mailer and X-Originating-IP, whitelists
((Resent-)?From|To|Cc|Date|Return-Path|Message-ID|Reply-To|Bcc), and
then throws away any other header. This is obviously not the final
configuration. If anyone wants to contribute, feel welcome.
I hope that with the modified torsocks that has an option to only torify
.onion I can simply put it in front of postfix and be done. We'll see.
I invite everyone to contribute to the postfix configuration, and,
eventually, to run more mail gateways.
https://github.com/moba/tor2mail
No documentation yet, but I will make it ready before we launch.
That's a message to the tor-talk mailing list by the guy who runs Torservers, so he's not some clueless newb with pie in the sky goals that are abandoned half way through development (like Bitwasp). Someone still needs to run a hidden service email server, but that's the easier part. Interfacing with clearnet anonymously was the hard part that Tormail solved before.
Interestingly, a Tor-only email server already exists:
http://365u4txyqfy72nul.onion/mail/
http://365u4txyqfy72nul.onion/wmail/notice.html
So the pieces are in place, if this mail gateway could send messages to the TSZ mail server, we effectively have a Tormail replacement.
What I really like is that they will scan and discard emails that are non PGP encrypted.