Robert J. Hansen
rjh at sixdemonbag.org
Mon Jul 26 04:24:19 CEST 2010
On 7/25/10 10:10 PM, vedaal at nym.hush.com wrote:
> so, if you saw a signed message with this key, you would think it
> would be signed by either Smith or Jones
This is not really plausible deniability. "You say you didn't write it?
Fine. I guess we'll prosecute both you /and/ Jones, then!"
Let's say SmithJones at aol.com gets involved in something the authorities
don't like -- let's say narcotics trafficking. What happens is Smith
and Jones *both* face charges of conspiracy to traffic, since the
collusion before to produce a shared keypair is prima facie evidence of
cooperation to hinder prosecution.
Is it rebuttable? Sure. Is it a nightmare for both of them? Yes.
Does it make their communications plausibly deniable? Not even close.
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