> Why not write the keyboard driver the same way how the friend did it
> in his OS - using bitmasking and avoiding conditional jumps and
> lookup tables? Then the security would be guaranteed and not just
> hoped for.
Why not write the driver yourself?
I don't see the reason to jump and reinvent
>> > And guess what. Keyboards use a serial protocol. Which means that
>> > there will be slightly different voltage drops in the system varying
>> > with the keys you press. ZOMG! OpenBSD provides a side channel for
>> > attackers through the sensors framework!
>>
>> And don't forget the aps(4) s
On Wed, 20 Jun 2007, Mikulas Patocka wrote:
> > Yay ! Let's map everything uncached from now on! For great justice!
> >
> > [I was tempted to write some stuff about how keyboard keycode translation
> > works in wscons, but it's not worth my time]
> >
> > Miod
>
> You don't have to map keyboard
That's ok, you can use my wep enabled wireless keyboard!!
On 6/20/07, Marc Balmer <[EMAIL PROTECTED]> wrote:
* Bob Beck wrote:
> > > And guess what. Keyboards use a serial protocol. Which means that
> > > there will be slightly different voltage drops in the system varying
> > > with the keys
someone already hacked you and sent that message -- be afraid
On 6/20/07, Marc Balmer <[EMAIL PROTECTED]> wrote:
>
> * Bob Beck wrote:
>
> > > > And guess what. Keyboards use a serial protocol. Which means that
> > > > there will be slightly different voltage drops in the system varying
> > > > wi
* Bob Beck wrote:
> > > And guess what. Keyboards use a serial protocol. Which means that
> > > there will be slightly different voltage drops in the system varying
> > > with the keys you press. ZOMG! OpenBSD provides a side channel for
> > > attackers through the sensors framework!
> >
> > And
> > And guess what. Keyboards use a serial protocol. Which means that
> > there will be slightly different voltage drops in the system varying
> > with the keys you press. ZOMG! OpenBSD provides a side channel for
> > attackers through the sensors framework!
>
> And don't forget the aps(4) sensor
On Wednesday 20 June 2007 12:28:28 Darrin Chandler wrote:
> On Wed, Jun 20, 2007 at 06:14:07PM +0200, Karel Kulhavy wrote:
> > > And guess what. Keyboards use a serial protocol. Which means that
> > > there will be slightly different voltage drops in the system varying
> >
> > The capacitors and re
On 6/20/07, Karel Kulhavy <[EMAIL PROTECTED]> wrote:
This kind of security design is assuming favourable constellation of
uncontrollable environmental noises to scramble the information we are
knowingly leaking. It's basically a snake oil. We have no proof that under
every conceivable circumstanc
Karel Kulhavy wrote:
This kind of security design is assuming favourable constellation of
uncontrollable environmental noises to scramble the information we are
knowingly leaking. It's basically a snake oil. We have no proof that under
every conceivable circumstances the noises will be present
On Wed, Jun 20, 2007 at 06:14:07PM +0200, Karel Kulhavy wrote:
> > And guess what. Keyboards use a serial protocol. Which means that
> > there will be slightly different voltage drops in the system varying
>
> The capacitors and regulator which are made to keep the voltage almost
> constant
> wit
On Wed, Jun 20, 2007 at 04:00:01PM +0200, Artur Grabowski wrote:
> Karel Kulhavy <[EMAIL PROTECTED]> writes:
>
> > On Tue, Jun 19, 2007 at 07:05:38PM -0700, Don Scott wrote:
> > > I think Artur Grabowski too easily dismisses the question.
> > >
> > > I'd be interested to know if you get any infor
Yay ! Let's map everything uncached from now on! For great justice!
[I was tempted to write some stuff about how keyboard keycode translation
works in wscons, but it's not worth my time]
Miod
You don't have to map keyboard map uncached, just change the way code is
written --- instead of
x =
Artur Grabowski <[EMAIL PROTECTED]> writes:
> And don't forget the aps(4) sensor on Thinkpads! The accelerometer can
> probably measure the acceleration caused by various key strokes and that
> acceleration will be different depending on where on the keyboard you hit
> (different angles) and with
Artur Grabowski <[EMAIL PROTECTED]> writes:
> And guess what. Keyboards use a serial protocol. Which means that
> there will be slightly different voltage drops in the system varying
> with the keys you press. ZOMG! OpenBSD provides a side channel for
> attackers through the sensors framework!
An
Karel Kulhavy <[EMAIL PROTECTED]> writes:
> On Tue, Jun 19, 2007 at 07:05:38PM -0700, Don Scott wrote:
> > I think Artur Grabowski too easily dismisses the question.
> >
> > I'd be interested to know if you get any informative responses that
> > are not also posted to [EMAIL PROTECTED]
>
> Mikul
Miod Vallat <[EMAIL PROTECTED]> writes:
> Yay ! Let's map everything uncached from now on! For great justice!
Yay! Then we can start inlining code again for greater performance!
//art
Yay ! Let's map everything uncached from now on! For great justice!
[I was tempted to write some stuff about how keyboard keycode translation
works in wscons, but it's not worth my time]
Miod
On Tue, Jun 19, 2007 at 07:05:38PM -0700, Don Scott wrote:
> I think Artur Grabowski too easily dismisses the question.
>
> I'd be interested to know if you get any informative responses that
> are not also posted to [EMAIL PROTECTED]
Mikulas (the friend) told me the algorithm to hack the root pa
Karel Kulhavy <[EMAIL PROTECTED]> writes:
> A friend who is happening to write his own operating system just pointed out
> to me that a keyboard driver cannot use
>
> - lookup tables, because timing accessing these lookup tables would yield
> information what key was pressed when entering a roo
A friend who is happening to write his own operating system just pointed out
to me that a keyboard driver cannot use
- lookup tables, because timing accessing these lookup tables would yield
information what key was pressed when entering a root password
- tests and jumps, because the same would
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