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authorPeter R <peter_r@gmx.com>2015-10-02 09:38:26 -0700
committerbitcoindev <bitcoindev@gnusha.org>2015-10-02 16:38:34 +0000
commit4cc61a363fb3e85c84c73308cd52bcf85e503102 (patch)
treea6cf6c9cab58ffe2cea69c26a7684f72e359bbde /64/b59c7f4193f863c5b9d37a1ed2eab8da96a14a
parent2f17c0078a60724debc1095fe67258d24ebb2d46 (diff)
downloadpi-bitcoindev-4cc61a363fb3e85c84c73308cd52bcf85e503102.tar.gz
pi-bitcoindev-4cc61a363fb3e85c84c73308cd52bcf85e503102.zip
Re: [bitcoin-dev] Dev-list's stance on potentially altering the PoW algorithm
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+From: Peter R <peter_r@gmx.com>
+In-Reply-To: <CABm2gDrOt2m6xfYjtVJne6Cm2nawXtA2-a4y7kaEA1fEgkUUUA@mail.gmail.com>
+Date: Fri, 2 Oct 2015 09:38:26 -0700
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+Cc: Bitcoin Dev <bitcoin-dev@lists.linuxfoundation.org>,
+ Daniele Pinna <daniele.pinna@gmail.com>
+Subject: Re: [bitcoin-dev] Dev-list's stance on potentially altering the PoW
+ algorithm
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+
+> On Oct 2, 2015, at 1:20 AM, Jorge Tim=C3=B3n via bitcoin-dev =
+<bitcoin-dev@lists.linuxfoundation.org> wrote:
+> On Oct 2, 2015 10:03 AM, "Daniele Pinna via bitcoin-dev" =
+<bitcoin-dev@lists.linuxfoundation.org =
+<mailto:bitcoin-dev@lists.linuxfoundation.org>> wrote:
+> > should an algorithm that guarantees protection from ASIC/FPGA =
+optimization be found.
+> This is demonstrably impossible: anything that can be done with =
+software can be done with hardware. This is computer science 101. And =
+specialized hardware can always be more efficient, at least energy-wise.
+>=20
+I encourage Alex and Dmitry to consider submitting their paper to =
+Ledger, where it will be reviewed objectively and with an open mind. =
+The authors have motivated their work, framed it in its scholarly =
+context, and made explicit the contributions their paper makes. Their =
+manuscript, "Asymmetric proof-of-work based on the Generalized Birthday =
+problem," clearly represents a great deal of work by the authors and I =
+commend them for their efforts. =20
+
+In the link Adam Back provided, Greg Maxwell mentioned that =E2=80=9Cit =
+is far from clear that 'memory hardness' is actually a useful goal.=E2=80=9D=
+ I agree with this statement; however, regardless of whether memory =
+hardness turns out to be a useful goal in regards to cryptocurrency or =
+not, a paper analyzing memory-hard proof-of-work schemes is certainly =
+useful in helping us to figure that out.=20
+
+Best regards,
+Peter=
+
+--Apple-Mail=_B09B6D8E-F20A-4C24-9DFF-87A28D609852
+Content-Transfer-Encoding: quoted-printable
+Content-Type: text/html;
+ charset=utf-8
+
+<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
+charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
+-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
+class=3D""><div><blockquote type=3D"cite" class=3D""><div class=3D"">On =
+Oct 2, 2015, at 1:20 AM, Jorge Tim=C3=B3n via bitcoin-dev &lt;<a =
+href=3D"mailto:bitcoin-dev@lists.linuxfoundation.org" =
+class=3D"">bitcoin-dev@lists.linuxfoundation.org</a>&gt; =
+wrote:</div></blockquote><blockquote type=3D"cite" class=3D""><div =
+class=3D"">On Oct 2, 2015 10:03 AM, "Daniele Pinna via bitcoin-dev" =
+&lt;<a href=3D"mailto:bitcoin-dev@lists.linuxfoundation.org" =
+class=3D"">bitcoin-dev@lists.linuxfoundation.org</a>&gt; =
+wrote:</div></blockquote><blockquote type=3D"cite" class=3D""><div =
+class=3D"">&gt; should an algorithm that guarantees protection from =
+ASIC/FPGA optimization be found.</div><div class=3D""><p dir=3D"ltr" =
+class=3D"">This is demonstrably impossible: anything that can be done =
+with software can be done with hardware. This is computer science 101. =
+&nbsp;And specialized hardware can always be more efficient, at least =
+energy-wise.</p></div></blockquote></div>I encourage Alex and Dmitry to =
+consider submitting their paper to <i class=3D"">Ledger</i>, where it =
+will be reviewed objectively and with an open mind. &nbsp;The authors =
+have motivated their work, framed it in its scholarly context, and made =
+explicit the contributions their paper makes. &nbsp;Their manuscript, =
+"Asymmetric proof-of-work based on the Generalized Birthday problem," =
+clearly represents a great deal of work by the authors and I commend =
+them for their efforts. &nbsp;<div class=3D""><br class=3D""></div><div =
+class=3D"">In the link Adam Back provided, Greg Maxwell mentioned that =
+=E2=80=9Cit is far from clear that 'memory hardness' is actually a =
+useful goal.=E2=80=9D &nbsp;I agree with this statement; however, =
+regardless of whether memory hardness turns out to be a useful goal in =
+regards to cryptocurrency or not,&nbsp;a paper analyzing memory-hard =
+proof-of-work schemes is certainly useful in helping us to figure that =
+out.&nbsp;</div><div class=3D""><br class=3D""></div><div class=3D"">Best =
+regards,</div><div class=3D"">Peter</div></body></html>=
+
+--Apple-Mail=_B09B6D8E-F20A-4C24-9DFF-87A28D609852--
+