[E-voting] Schaerbeek incident - vote flipping

Catherine Ansbro cansbro at eircom.net
Tue Apr 12 22:53:35 GMT 2005

5 Dec 2004

Tim wrote:

> Equally, a computer glitch is very unlikely to have a tiny effect.

Adrian responded:

The Pentium FDIV bug had a tiny effect.  So did that election in Fairfax
Co., Virginia, in which 100 votes were lost from one candidate's total
(due to a programming error).  In the 2002 election for Maryland
governor, some voters pressed the button for one candidate but saw a
different candidate get the `X'.  The Schaerbeek incident came to light
because flipping bit 12 changed the result by 4096 votes; if bit 7 had
flipped instead, would the 128-vote change have been obvious?

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