Re: Quiet in the list...

2008-09-07 Thread Peter Gutmann
IanG [EMAIL PROTECTED] writes:

4.  Skype.  Doesn't do email, but aside from that minor character flaw, it
cracked everything else.  It's the best example of what it should look like.

The UI still leaves quite a lot to be desired.  Try sitting a non-geek user in
front of a fresh Skype install and see how long it takes them to figure out
how to make a phonecall to (say) a Skype user name supplied via email.  I've
seen times of 15+ minutes to make the first call (OK, so I treat neighbours
and family as UI guinea pigs :-).  Skype still has a lot of fundamental
usability flaws like the inability to remember a password (requiring it to be
manually re-entered each time it's run unless you choose to start Skype on
system boot) that make it a less-than-perfect example of usable security.

The scary thing though is that even with all its flaws, it's still more usable
than virtually all other crypto-using apps around.

Peter.

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Re: Quiet in the list...

2008-09-07 Thread Nicholas Bohm

Sidney Markowitz wrote:

IanG wrote, On 7/9/08 2:06 AM:
Then, when a new Thunderbird comes out, you load that up and the other 
packages cease to work


As far as I recall, the last time Thunderbird had an upgrade it told me 
that one was available, I clicked to upgrade, and the addons, including 
Enigmail, continue to work. When there was an upgrade available to 
Enigmail, same thing. And the upgrade to GNUgpg also installed cleanly 
with no reconfiguration necessary. It has all been as transparent as can 
be.


...

My experience was the same, although I needed some initial help with 
GPG.  Since then, updates have been trouble-free.


My only problem with the security model is that Thunderbird/Enigmail 
stores encrypted messages in encrypted form, and there is no option to 
store the plaintext.  This use of a communications key for stored data 
is potentially a nuisance - a key corruption or other compromise, or 
just a wish to delete an old key for forward security, would cause much 
trouble.  (I keep my mail in an encrypted container anyway, so don't 
need this feature.)


This apart, the system runs with remarkable simplicity.

Nicholas Bohm
--
Salkyns, Great Canfield, Takeley,
Bishop's Stortford CM22 6SX, UK

Phone  01279 870285(+44 1279 870285)
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More US bank silliness

2008-09-07 Thread Peter Gutmann
In the ongoing comedy of errors that is US online banking security I've just
run into another one that's good for a giggle: Go to www.wachovia.com and,
without entering any credentials, click 'Login' on their unsecured logon page.
You get taken to an authenticated, SSL-secured... error message page.  The
error message page gives you a chance to retry your logon, carefully
redirecting you back to the insecure logon page.  So displaying a glorified
401 requires SSL, but obtaining user credentials doesn't.

(Insert standard moan about US banks here).

On a semi-related topic, it'd be interesting to get some discussion about FF3 
removing the FF2 SSL indicators of the padlock and (more visibly) the 
background colour-change for the URL bar when SSL is active and replacing it 
with a spoof-friendly indicator that's part of the favicon, i.e. part of the 
attacker-controlled content.  The URL bar colouring was by far the most 
visible security indicator that any web browser had, the giant leap backwards 
of moving to a near-invisible blue border around the favicon does nothing to 
indicate security and is trivially spoofed by putting a blue border around the 
favicon.  There's a bugzilla bug filed against it, 
https://bugzilla.mozilla.org/show_bug.cgi?id=430790 (with inevitable dups, 
e.g. https://bugzilla.mozilla.org/show_bug.cgi?id=431495) but there's no 
indication that the FF developers are interested in fixing it.  From the 
discussion thread on bugzilla it seems the reason is that only EV certs matter 
so there's no point in paying much attention to non-EV certs.

(Again, roll standard music about EV certs benefitting no-one but the CAs
selling them).

Peter.

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