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From: Chris Pacia <ctpacia@gmail.com>
Date: Fri, 2 Jun 2017 12:07:17 -0400
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To: Gregory Maxwell <greg@xiph.org>
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Subject: Re: [bitcoin-dev] BIP Proposal: Compact Client Side Filtering for
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On Jun 1, 2017 10:28 PM, "Gregory Maxwell" <greg@xiph.org> wrote:
Really bad for privacy.
As I mentioned the issue is the potential collision with the block filter,
but bloom filters by themselves aren't inherently bad for privacy. They
just reduce the anonymity set. The reason bip37 doesn't work for privacy is
how the filters have to be used/abused to make it work. That's not what I
mentioned above.
Data for transactions at the tip is only
14kb/s-- potentially less if segwit is in use and you're not getting
witnesses. Is that really that burdensome?
Your not running that on mobile.
--001a1145b3f6f3c0460550fc5844
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
<div dir=3D"auto"><div><br><div class=3D"gmail_extra"><br><div class=3D"gma=
il_quote">On Jun 1, 2017 10:28 PM, "Gregory Maxwell" <<a href=
=3D"mailto:greg@xiph.org">greg@xiph.org</a>> wrote:<blockquote class=3D"=
quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1=
ex"><div class=3D"quoted-text">
<br>
</div>Really bad for privacy.=C2=A0</blockquote></div></div></div><div dir=
=3D"auto"><br></div><div dir=3D"auto">As I mentioned the issue is the poten=
tial collision with the block filter, but bloom filters by themselves aren&=
#39;t inherently bad for privacy. They just reduce the anonymity set. The r=
eason bip37 doesn't work for privacy is how the filters have to be used=
/abused to make it work. That's not what I mentioned above.</div><div d=
ir=3D"auto"><br></div><div dir=3D"auto">Data for transactions at the tip is=
only</div><div dir=3D"auto"><div class=3D"gmail_extra"><div class=3D"gmail=
_quote"><blockquote class=3D"quote" style=3D"margin:0 0 0 .8ex;border-left:=
1px #ccc solid;padding-left:1ex">
14kb/s-- potentially less if segwit is in use and you're not getting<br=
>
witnesses. Is that really that burdensome?</blockquote></div></div></div><d=
iv dir=3D"auto"><br></div><div dir=3D"auto">Your not running that on mobile=
.</div></div>
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