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Subject: Re: [Bitcoin-development] CoinShuffle: decentralized CoinJoin
 without trusted third parties
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On Sat, Aug 9, 2014 at 6:10 AM, Sergio Lerner <sergiolerner@certimix.com>
wrote:

>  Hi Tim,
>  It's clear from the paper that the second party in the protocol can
> de-anonymize the first party. So it's seems that dishonest shufflers would
> prefer to be in that position in the queue.
>

That's not clear to me. The 2nd party doesn't know how the 3rd, 4th, 5th,
etc. parties shuffled the outputs, since it doesn't have their decryption
keys.

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<div dir=3D"ltr">On Sat, Aug 9, 2014 at 6:10 AM, Sergio Lerner <span dir=3D=
"ltr">&lt;<a href=3D"mailto:sergiolerner@certimix.com" target=3D"_blank">se=
rgiolerner@certimix.com</a>&gt;</span> wrote:<br><div class=3D"gmail_extra"=
><div class=3D"gmail_quote">
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
 =20
   =20
 =20
  <div bgcolor=3D"#FFFFFF" text=3D"#000000">
    Hi Tim,<br>
    =C2=A0It&#39;s clear from the paper that the second party in the protoc=
ol can
    de-anonymize the first party. So it&#39;s seems that dishonest shuffler=
s
    would prefer to be in that position in the queue.<br></div></blockquote=
></div><br></div><div class=3D"gmail_extra">That&#39;s not clear to me. The=
 2nd party doesn&#39;t know how the 3rd, 4th, 5th, etc. parties shuffled th=
e outputs, since it doesn&#39;t have their decryption keys.<br>
</div></div>

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