[FoRK] Not the linux-mini yet,

Wilkin, Kurt Kurt.Wilkin
Fri Aug 19 02:05:14 PDT 2005


on  fork-bounces at xent.com wrote:
> On Fri, 19 Aug 2005, Udhay Shankar N wrote:
> 
>> Lucas Gonze wrote [ at 10:39 AM 8/19/2005 ]:
>> 
>>> You can't trust the keyboard, though.  Any secrets have to
>>> originate on the mini and be encrypted as they pass through the
>>> untrusted cybercafe machine. 
>>> 
>>> For starters there's a big freebie to bootstrap the system: ssh
>>> passwordless login.  However that won't help you with any web site
>>> you have to log in to, most importantly webmail.
>> 
>> Maybe an on screen keyboard on a webserver you control, hardcoded to
>> go to yahoo/gmail/whatever? The actual email may not have that level
>> of security requirement, but the passphrase surely would.
> 
> That's getting there...  You can't interactively enter the password,
> though.  It would have to be a recording of some kind.
> 
> One angle of attack -- a filtering proxy on the mini which
> munges the HTTP
> to auto-fill password fields without ever send the password
> data to the
> screen.  Or -- a mozilla extension which could read and write
> the disk on
> the mini...
> 

Store the AutoHotkey.exe  (from http://www.autohotkey.com/ )
on your mini, copy it onto the dirty machine, as well as a
script file containing a line like:

::pw::password

Run the script, then when you enter 'pw' in the password 
field it'll be auto replaced with 'password'.

For extra paranoia, compile the script to a password
protected exe. 

That'll get you past the keyboard anyway.

Cheers, Kurt.

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