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Re: kocher's timing attack

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Hello [email protected] (Cypherpunks Mailing List)
  and [email protected] (Futplex)

Futplex writes:
... [in reply to others] ...
> You are overlooking the main point that this is a _timing_ attack. Unless
...
> Just beware of
> people with extremely precise stopwatches at key signing parties ;>

Hold on, you *never* sign directly at key signing parties!

Never take your key where:
  - it could be stolen
  - you suspect others may wish to influence your signing
  - somebody might spy your passphrase (hidden cameras in ceiling)

You take fingerprints, and sign when you get back home.


Re the timing subject, do you think it'd make a good party trick?

  * Think of a number between 20 and 30.
  * for 4-5 numbers a, "Multiply the orignal number by <a>"
  * the number you are thinking of is <number>

Now, anybody have statistics for mental arithmetic?

Jiri
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If you want an answer, please mail to <[email protected]>.
On sweeney, I may delete without reading!
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