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Re: Network security manager
From: |
Lars Magne Ingebrigtsen |
Subject: |
Re: Network security manager |
Date: |
Tue, 18 Nov 2014 00:26:17 +0100 |
User-agent: |
Gnus/5.130012 (Ma Gnus v0.12) Emacs/25.0.50 (gnu/linux) |
There's one slight privacy leak in the security manager. To keep track
of STARTTLS man-in-the-middle downgrades, nsm needs to store data on all
STARTTLS connections you've made. A wily hacker (I mean, the NSA) could
use this file to determine what servers you've been talking to.
The ~/.emacs.d/network-security.data will have things like
(:id "sha1:ac7feb949147490ee549b5b6c3ae7edd929ea335" :fingerprint
"sha1:c0:ec:2f:01:6c:ff:4a:43:c1:a7:c7:83:4b:48:0b:3a:c5:4e:90:f9")
it it, where the :id is the sha1 of "host:port", and the latter is the
fingerprint of the certificate.
The wily hacker (I mean, the NSA) wouldn't find it easy to get a list of
the servers (because they would have to check all servers/port names in
existence), but they could use it to check for specific servers.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
- Re: Network security manager, (continued)
- Re: Network security manager, Lars Magne Ingebrigtsen, 2014/11/17
- Re: Network security manager, Kelvin White, 2014/11/17
- Re: Network security manager, Kelvin White, 2014/11/17
- Re: Network security manager, Lars Magne Ingebrigtsen, 2014/11/17
- Re: Network security manager, Rob Browning, 2014/11/17
- Re: Network security manager, Óscar Fuentes, 2014/11/17
- Re: Network security manager, Sebastien Vauban, 2014/11/18
- Re: Network security manager, Óscar Fuentes, 2014/11/18
- Re: Network security manager, Lars Magne Ingebrigtsen, 2014/11/17
- Re: Network security manager, Lars Magne Ingebrigtsen, 2014/11/17
- Re: Network security manager,
Lars Magne Ingebrigtsen <=
- Re: Network security manager, Ted Zlatanov, 2014/11/18
- Re: Network security manager, Lars Magne Ingebrigtsen, 2014/11/17
- Re: Network security manager, Lars Magne Ingebrigtsen, 2014/11/18
- Re: Network security manager, Rasmus, 2014/11/18
- Re: Network security manager, Lars Magne Ingebrigtsen, 2014/11/18
- Re: Network security manager, Achim Gratz, 2014/11/18
- Re: Network security manager, Lars Magne Ingebrigtsen, 2014/11/18
- Re: Network security manager, Tassilo Horn, 2014/11/18
- Re: Network security manager, Lars Magne Ingebrigtsen, 2014/11/18
- Re: Network security manager, Tassilo Horn, 2014/11/18