Re: timing attacks.

Tom Weinstein (tomw@netscape.com)
Thu, 25 Jun 1998 14:29:44 -0700

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Mike Rosing wrote:
>
> On Thu, 25 Jun 1998, Tom Weinstein wrote:
>
> >
> > My impression is that this is not merely a "theoretical" attack.
>
> OK, show me a real attack. And I'll show you a real defense.

I have no doubt that you can build a chip immune to such an attack, but
it doesn't matter. What matters is that existing smart cards are
vulnerable. Mondex has lots of hardware already deployed, and the cost of
redesigning to protect against the attack is a lot higher than the cost to
mount the attack.

-- 
What is appropriate for the master is not appropriate| Tom Weinstein
for the novice.  You must understand Tao before      | tomw@netscape.com
transcending structure.  -- The Tao of Programming   |

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