[Mesh] DNS free email

[Stuart Gathman]

On 09/01/2017 10:39 AM, Nicholas Carter wrote:
> I'm interested to try this over the next few days. Have any potential
> vulns been thought of yet?
The only potential vuln is that according to some crypto experts I asked
(including Jeremy Rand with the Namecoin project) the 128-bit hash used
for Cjdns IP can be brute forced by an adversary with the resources of
the NSA.  You would have to cache (and verify) the public key of your
correspondents a la SSH to mitigate this.  But if you are using a recent
Intel processor, you are already vulnerable to the NSA.
>
> On Thu, Aug 31, 2017 at 8:12 PM, Stuart Gathman <stuart at gathman.org
> <mailto:stuart at gathman.org>> wrote:
>
>     The folks on SSB are excited to discover that with the permanent
>     authenticated cjdns IPs, you can fairly easily dispense with DNS for
>     sending and receiving email.  In addition to enabling raw ips on my
>     gathman.org <http://gathman.org> server, I installed opensmtpd on
>     a node behind NAT, and can
>     send and receive emails with no registration anywhere.
>
>     I would post a link, but the gateway for the "corporate web" is down.
>     If you are on SSB, check out the #email channel.
>
>     To give you the idea, you can email me at
>     stuart@[IPv6:fcd9:7f8a:e050:4b48:7fd6:7fa:5509:6e26]
>
>     I just added [IPv6:fcd9:7f8a:e050:4b48:7fd6:7fa:5509:6e26] to
>     /etc/mail/local-host-names to make sendmail accept mail for that
>     domain.
>
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