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In-Reply-To: <b50376f5-1a40-1475-04be-1b6aef0bbd74@cannon-ciota.info>
References: <b50376f5-1a40-1475-04be-1b6aef0bbd74@cannon-ciota.info>
From: Bryan Bishop <kanzure@gmail.com>
Date: Sun, 31 Dec 2017 17:46:57 -0600
Message-ID: <CABaSBayhm5TChEAbHboA7CLAye0nyDBqXty3bAmJ9+uC7RahMQ@mail.gmail.com>
To: CANNON <cannon@cannon-ciota.info>, 
	Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
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Subject: Re: [bitcoin-dev] Single signature for all transactions in a block?
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On Sun, Dec 31, 2017 at 5:39 PM, CANNON via bitcoin-dev <
bitcoin-dev@lists.linuxfoundation.org> wrote:
>
> I had a question relating to scaling and privacy enhancements.
> I believe that segwit combined with aggregated signatures
> and coinjoin can potentially achieve such. The idea is to
> use aggregated signatures in conjunction with coinjoin. So
> that all inputs of a coinjoin transaction would have a single
> signature vastly decreasing size while having privacy at the
> same time. If majority of transactions in a block did this I
> assume that significant more transactions could be fit into a
> block?


Here are some resources to read regarding signature aggregation and
scalability:

https://diyhpl.us/wiki/transcripts/bitcoin-core-dev-tech/2017-09-06-signature-aggregation/
https://diyhpl.us/wiki/transcripts/gmaxwell-2017-08-28-deep-dive-bitcoin-core-v0.15/#signature-aggregation
https://diyhpl.us/wiki/transcripts/scalingbitcoin/milan/schnorr-signatures/
https://bitcoincore.org/en/2017/03/23/schnorr-signature-aggregation/
https://bitcointalk.org/index.php?topic=1377298.0
https://bitcoincore.org/logs/2016-05-zurich-meeting-notes.html
https://github.com/sipa/secp256k1/blob/968e2f415a5e764d159ee03e95815ea11460854e/src/modules/schnorr/schnorr.md
https://diyhpl.us/wiki/transcripts/2016-july-bitcoin-developers-miners-meeting/dan-boneh/

- Bryan
http://heybryan.org/
1 512 203 0507

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<div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote">On S=
un, Dec 31, 2017 at 5:39 PM, CANNON via bitcoin-dev <span dir=3D"ltr">&lt;<=
a href=3D"mailto:bitcoin-dev@lists.linuxfoundation.org" target=3D"_blank">b=
itcoin-dev@lists.linuxfoundation.org</a>&gt;</span> wrote:<blockquote class=
=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rg=
b(204,204,204);padding-left:1ex">
I had a question relating to scaling and privacy enhancements.<br>
I believe that segwit combined with aggregated signatures<br>
and coinjoin can potentially achieve such. The idea is to<br>
use aggregated signatures in conjunction with coinjoin. So<br>
that all inputs of a coinjoin transaction would have a single<br>
signature vastly decreasing size while having privacy at the<br>
same time. If majority of transactions in a block did this I<br>
assume that significant more transactions could be fit into a<br>
block?</blockquote><div><br>Here are some resources to read regarding signa=
ture aggregation and scalability:</div><div><br><a href=3D"https://diyhpl.u=
s/wiki/transcripts/bitcoin-core-dev-tech/2017-09-06-signature-aggregation/"=
>https://diyhpl.us/wiki/transcripts/bitcoin-core-dev-tech/2017-09-06-signat=
ure-aggregation/</a><br><a href=3D"https://diyhpl.us/wiki/transcripts/gmaxw=
ell-2017-08-28-deep-dive-bitcoin-core-v0.15/#signature-aggregation">https:/=
/diyhpl.us/wiki/transcripts/gmaxwell-2017-08-28-deep-dive-bitcoin-core-v0.1=
5/#signature-aggregation</a><br><a href=3D"https://diyhpl.us/wiki/transcrip=
ts/scalingbitcoin/milan/schnorr-signatures/">https://diyhpl.us/wiki/transcr=
ipts/scalingbitcoin/milan/schnorr-signatures/</a><br><a href=3D"https://bit=
coincore.org/en/2017/03/23/schnorr-signature-aggregation/">https://bitcoinc=
ore.org/en/2017/03/23/schnorr-signature-aggregation/</a><br><a href=3D"http=
s://bitcointalk.org/index.php?topic=3D1377298.0">https://bitcointalk.org/in=
dex.php?topic=3D1377298.0</a><br><a href=3D"https://bitcoincore.org/logs/20=
16-05-zurich-meeting-notes.html">https://bitcoincore.org/logs/2016-05-zuric=
h-meeting-notes.html</a><br><a href=3D"https://github.com/sipa/secp256k1/bl=
ob/968e2f415a5e764d159ee03e95815ea11460854e/src/modules/schnorr/schnorr.md"=
>https://github.com/sipa/secp256k1/blob/968e2f415a5e764d159ee03e95815ea1146=
0854e/src/modules/schnorr/schnorr.md</a><br><a href=3D"https://diyhpl.us/wi=
ki/transcripts/2016-july-bitcoin-developers-miners-meeting/dan-boneh/">http=
s://diyhpl.us/wiki/transcripts/2016-july-bitcoin-developers-miners-meeting/=
dan-boneh/</a></div><div><br></div></div><div class=3D"gmail_signature">- B=
ryan<br><a href=3D"http://heybryan.org/" target=3D"_blank">http://heybryan.=
org/</a><br>1 512 203 0507</div>
</div></div>

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