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Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] A look back and a look forward
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--f46d044283ec15c18d050c3896bf
Content-Type: text/plain; charset=UTF-8

>
> This needn't be so, once an optional identity layer, modeled after the
> Internet itself, is provided, as proposed in late August of last year on
> this mailing list
>

I think the observation about Target vs Bitcoin exchanges is a sharp one,
but I'm not sure how your proposal helps. You say it's an optional identity
layer, but obviously any thief is going to opt out of being identified.

For things like the Bitstamp hack, it's not clear how identity can help,
because they were already doing KYC for all their customers. To take that
further at the protocol level would require* all* transactions to have
attached identity info, and that isn't going to happen - it wouldn't be
Bitcoin, at that point.

I think that long term, it's probably possible to defend private keys
adequately, even for large sums of money (maybe not bitstamp-large but
we'll see). You can have very minimalist secure hardware that would have
some additional policies on top, like refusing to sign transactions without
an identity proof of who controls the target address. Very tight hot
wallets that risk analyse the instructions they're receiving have been
proposed years ago.

No such hardware presently exists, but that's mostly because
implementations always lag behind a long way behind ideas rather than any
fundamental technical bottleneck. Perhaps the Bitstamp event will finally
spur development of such things forward.

--f46d044283ec15c18d050c3896bf
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote"><blo=
ckquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #c=
cc solid;padding-left:1ex"><div dir=3D"ltr">This needn&#39;t be so, once an=
 optional identity layer, modeled after the Internet itself, is provided, a=
s proposed in late August of last year on this mailing list</div></blockquo=
te><div><br></div><div>I think the observation about Target vs Bitcoin exch=
anges is a sharp one, but I&#39;m not sure how your proposal helps. You say=
 it&#39;s an optional identity layer, but obviously any thief is going to o=
pt out of being identified.</div><div><br></div><div>For things like the Bi=
tstamp hack, it&#39;s not clear how identity can help, because they were al=
ready doing KYC for all their customers. To take that further at the protoc=
ol level would require<i>=C2=A0all</i>=C2=A0transactions to have attached i=
dentity info, and that isn&#39;t going to happen - it wouldn&#39;t be Bitco=
in, at that point.</div><div><br></div><div>I think that long term, it&#39;=
s probably possible to defend private keys adequately, even for large sums =
of money (maybe not bitstamp-large but we&#39;ll see). You can have very mi=
nimalist secure hardware that would have some additional policies on top, l=
ike refusing to sign transactions without an identity proof of who controls=
 the target address. Very tight hot wallets that risk analyse the instructi=
ons they&#39;re receiving have been proposed years ago.=C2=A0</div><div><br=
></div><div>No such hardware presently exists, but that&#39;s mostly becaus=
e implementations always lag behind a long way behind ideas rather than any=
 fundamental technical bottleneck. Perhaps the Bitstamp event will finally =
spur development of such things forward.</div></div></div></div>

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