[messaging] Test Data for the Usability Study
tom at ritter.vg
Mon Jul 7 14:06:49 PDT 2014
On 7 July 2014 04:17, Joseph Bonneau <jbonneau at gmail.com> wrote:
> So am I correct in reading that your main concern is that an attacker able
> to do 2^80 work can't always find an 80-bit match (by which we mean any
> desirable type of match that has a probability of 2^-80 of occurring by
No, it's around what _type_ of match we generate for an attacker's
fingerprint. Do we flip bits at random, or do we optimize for the
encoded fingerprint type. The latter introduces a certain amount of
subjectiveness. (It's quite objective if we do a fuzzy match based on
phonetic differences, it's much-less-subjective-but-still-a-little-bit
if we do a 'leading and trailing n bits' match).
I argued strongly for full subjectivity, then went to random bit
flips, and now I'm back to saying let's do something in-between.
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