Subj : Re: Usenet-Next - A proposal to create a very strict NNTP network with
To   : karl
From : DevNull
Date : Wed Nov 23 2016 19:56:00

 ka> I agree that having a communication protocol similar to nntp  would be
 ka> desirable.  My thought with regards to spam would be to take advantage of
 ka> public key encryption would would allow tighter moderation/control of
 ka> message sources.  Messages don't necessarily have to be encrypted but
 ka> they could be signed which means that the sender could be verified or
 ka> the message would be rejected.

Its a a very good idea. You can create some kind of revocation list and ban
any public key used to sign SPAM messages. If your key is in the list, your
messages are ignored by your server in the posting process (And by other
servers in case one server is ignoring the main revocation list).

And you don't need to modify current NNTP clients. Your server can do the
signing proc once posted. And the signed message can be checked by other
servers before proc and store them.

You can create an app to report messages by users, if a message is reported
by for example 30% of users, the key is automatically blacklisted for some
time and if the user sends SPAM again, his key is blacklisted forever.
Community self-moderated :)

The main revocation list can also contain a list of hashed IP addresses
to avoid spammer's registration in other servers, etc ...

You can also add an scoring based on interaction. You will never post a
response to SPAM, so, you can create a positive scoring based in number of
responses by thread, etc.

[+] Netmail     DevNull -> (2:341/203) (46:2/103) (57:245/13) (9:92/8) 
[+] PGP KeyID   0x1352338D

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