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From: devrandom <c1.sf-bitcoin@niftybox.net>
To: Ruben de Vries <ruben@blocktrail.com>
Date: Wed, 14 Jan 2015 09:39:10 -0800
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Cc: bitcoin-development@lists.sourceforge.net
Subject: Re: [Bitcoin-development] convention/standard for sorting public
 keys for p2sh multisig transactions
Precedence: list

At CryptoCorp we recommend to our customers that they sort
lexicographically by the public key bytes of the leaf public keys.  i.e.
the same as BitPay.

On Wed, 2015-01-14 at 17:37 +0100, Ruben de Vries wrote:
> For p2sh multisig TXs the order of the public keys affect the hash and
> there doesn't seem to be an agreed upon way of sorting the public
> keys.
>=20
>=20
> If there would be a standard (recommended) way of sorting the public
> keys that would make it easier for services that implement some form
> of multisig to be compatible with each other without much hassle and
> making it possible to import keys from one service to another.
>=20
>=20
> I'm not suggesting forcing the order, just setting a standard to
> recommend, there doesn't seem to be much reason for (new) services to
> not follow that recommendation.
>=20
>=20
> Ryan from BitPay broad this up before
> (https://sourceforge.net/p/bitcoin/mailman/message/32092958/) and in
> bitcore they've implemented lexicographical sorting on the hex of the
> public key.
> In a short search I can't find any other library that has a sorting
> function, let alone using it by default, so bitcore is currently my
> only reference.
>=20
>=20
>=20
>=20
> =E2=80=8BRuben de Vries
> =E2=80=8BCTO, BlockTrail
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--=20
Miron / devrandom