MIME-Version: 1.0
References: <CAHk9a9ct_h485MY4gk7S++FAu5FEH3PL9pd9mrrh+wA8nWaVUA@mail.gmail.com>
In-Reply-To: <CAHk9a9ct_h485MY4gk7S++FAu5FEH3PL9pd9mrrh+wA8nWaVUA@mail.gmail.com>
From: Erik Aronesty <erik@q32.com>
Date: Wed, 29 Aug 2018 07:28:56 -0400
Message-ID: <CAJowKgLGA0tc_uYMhZhB157b2--wcLyPeNhoxxbSh2r+fS+bJg@mail.gmail.com>
To: nakagat@gmail.com, 
	Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
Content-Type: multipart/alternative; boundary="0000000000005830410574914407"
Subject: Re: [bitcoin-dev] Multisignature for bip-schnorr
Precedence: list

--0000000000005830410574914407
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

It's cool but

- there's a lot of online steps.
- it's not a threshold system

Using a shamir scheme solves this and isn't subject to birthday attacks:

https://medium.com/@simulx/an-m-of-n-bitcoin-multisig-scheme-e7860ab34e7f


On Mon, Aug 13, 2018 at 7:08 AM nakagat via bitcoin-dev <
bitcoin-dev@lists.linuxfoundation.org> wrote:

> Hi all,
>
> I wrote a multisignature procedure using bip-schnorr.
>
> If you have time to review and give feedback, I=E2=80=99d really apprecia=
te it.
> Thanks in advance!
>
> Multisignature
> https://gist.github.com/tnakagawa/0c3bc74a9a44bd26af9b9248dfbe598b
>
> Original
>
> https://github.com/sipa/bips/blob/bip-schnorr/bip-schnorr.mediawiki#Multi=
signatures_and_Threshold_Signatures
>
> --
> nakagawa
> _______________________________________________
> bitcoin-dev mailing list
> bitcoin-dev@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
>

--0000000000005830410574914407
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>It&#39;s cool but</div><div><br></div><div>- there=
9;s a lot of online steps.</div><div>- it&#39;s not a threshold system</div=
><div><br></div><div>Using a shamir scheme solves this and isn&#39;t subjec=
t to birthday attacks:</div><div><br></div><div><a href=3D"https://medium.c=
om/@simulx/an-m-of-n-bitcoin-multisig-scheme-e7860ab34e7f">https://medium.c=
om/@simulx/an-m-of-n-bitcoin-multisig-scheme-e7860ab34e7f</a><br></div><div=
><br></div><div><br></div></div><br><div class=3D"gmail_quote"><div dir=3D"=
ltr">On Mon, Aug 13, 2018 at 7:08 AM nakagat via bitcoin-dev &lt;<a href=3D=
"mailto:bitcoin-dev@lists.linuxfoundation.org">bitcoin-dev@lists.linuxfound=
ation.org</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=
=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi all,<=
br>
<br>
I wrote a multisignature procedure using bip-schnorr.<br>
<br>
If you have time to review and give feedback, I=E2=80=99d really appreciate=
 it.<br>
Thanks in advance!<br>
<br>
Multisignature<br>
<a href=3D"https://gist.github.com/tnakagawa/0c3bc74a9a44bd26af9b9248dfbe59=
8b" rel=3D"noreferrer" target=3D"_blank">https://gist.github.com/tnakagawa/=
0c3bc74a9a44bd26af9b9248dfbe598b</a><br>
<br>
Original<br>
<a href=3D"https://github.com/sipa/bips/blob/bip-schnorr/bip-schnorr.mediaw=
iki#Multisignatures_and_Threshold_Signatures" rel=3D"noreferrer" target=3D"=
_blank">https://github.com/sipa/bips/blob/bip-schnorr/bip-schnorr.mediawiki=
#Multisignatures_and_Threshold_Signatures</a><br>
<br>
-- <br>
nakagawa<br>
_______________________________________________<br>
bitcoin-dev mailing list<br>
<a href=3D"mailto:bitcoin-dev@lists.linuxfoundation.org" target=3D"_blank">=
bitcoin-dev@lists.linuxfoundation.org</a><br>
<a href=3D"https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev" =
rel=3D"noreferrer" target=3D"_blank">https://lists.linuxfoundation.org/mail=
man/listinfo/bitcoin-dev</a><br>
</blockquote></div>

--0000000000005830410574914407--