Re: [bitcoin-dev] A BIP for partially-signed/not-signed raw transaction serialization; would it be useful?

[木ノ下じょな <kinoshitajona@gmail.com>]

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Hey Thomas,

Just to clear the air, I am not OutCast3k, but I have submitted various PRs
to coinb.in under multiple handle names, and also Copay and Electrum. (You
could say I have multisig in my blood if you want to be cheesy)

I think I'm going to go ahead and draft up a BIP and submit it here just to
get the ball rolling.

Any ideas or input can be sent to me directly via email. I'll also start a
Telegram group chat https://t.me/joinchat/AAAAAAutbBADJuHRD7YvHw in case
anyone wants to join in on the discussion.

Thanks,
Jon

2017-01-10 18:18 GMT+09:00 Thomas Kerin <me@thomaskerin.io>:

> Hey,
>
> Firstly, your project coinb.in is really cool, I've used it a bit back in
> the day :-)
>
> It makes sense why you're looking for this proposal. I'm pretty sure on
> top of a serialisation of an unsigned tx with the scriptpubkey (it is to
> deliver signing data to the wallet too?) then you'll also want a protocol
> to request signatures.
>
> I worked on this problem before, when I was using your site and a tool of
> mine to carry out transactions. I would up writing a BIP that's basically
> the same (in message contents, not format) as Jonas's hardware signing BIP.
>
> I think he also realised that it's not just for hardware wallets, it's
> also perfect for a BitGo wallet to use to talk to a GreenAddress wallet. It
> seems to cover the web case nicely.
>
> (My app was one where users could supply an xpub for multisigs to the
> server, get txs, and do signing offline or in the browser)
>
> Maybe have a look over it and see if it starts to capture some of the
> things you would want!
>
> All the best,
> Thomas
>
>
>
> On 9 January 2017 10:36:49 CET, "木ノ下じょな via bitcoin-dev" <
> bitcoin-dev@lists.linuxfoundation.org> wrote:
>>
>> I have been seeing issues like the following many times on all the
>> different projects that support multisig with users responsible for partial
>> transaction transport.
>>
>> https://github.com/OutCast3k/coinbin/issues/73
>>
>> I would like to gather opinions before proposing a BIP, (like whether we
>> need one or not) so please let me know what you think.
>>
>> Basically, Electrum, Copay, Coinb.in, Bitcoin Core, etc. all have
>> different methodology for serializing partially signed multisig raw
>> transactions, as well as not-signed raw transactions regardless of
>> scriptPubkey.
>>
>> I think we should all be on the same page when serializing not-signed and
>> partially signed transactions so that the person could look at the data
>> alone and know what is necessary and how to manipulate it to sign and
>> complete the transaction.
>>
>> - Jon
>>
>> --
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>
> --
> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>



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