From: Andrew Chow <achow101-lists@achow101•com>
To: William Casarin <jb55@jb55•com>,
Bitcoin Protocol Discussion
<bitcoin-dev@lists•linuxfoundation.org>,
Peter Gray <peter@coinkite•com>
Subject: Re: [bitcoin-dev] BIP 174 thoughts
Date: Sat, 23 Jun 2018 16:33:11 -0400 [thread overview]
Message-ID: <qqrkCNKaf2L_MWkEU5F2u3Jna2QdA-bGNPDE9aU64Im0SUlIo4mfexfp8CXQSj9vEp9XM25DHSJIp4HnKFyLsflAhreppaNJQy-g1hXtjNU=@achow101.com> (raw)
In-Reply-To: <87zhzlbfq5.fsf@jb55.com>
On 06/23/2018 10:00 AM, William Casarin wrote:
> Since we're still considering the encoding, I wonder if it would be a
> good idea to have a human-readible part like lightning invoices[1]?
I don't think that is necessary.
> Then perhaps you could drop the magic code as well?
The magic is still necessary for the binary format in order to prevent
normal transaction deserializers from accidentally deserializing a psbt.
> Also we could do a base encoding that excludes + and / characters, such
> as base62 (gmp-style). It's easier to copy/paste (double clicking a
> string stops at / or + in base64 encodings).
While that would be ideal, I think it is better to use an encoding that
most wallets already support. Most wallets already have Base64 decoding
available so that they can decode signed messages which also use Base64
encoding. I think it is unnecessary to introduce another encoding.
On 06/23/2018 11:27 AM, Peter D. Gray wrote:
> Personally, I don't think you should spec an encoding. It should be binary only and hex for developers and JSON interfaces. My thinking is that PSBT's are not user-visible things. They have a short lifetime and are nothing something that is "stored" or referenced much later. Hex is good enough and has no downsides as an excoding except for density.
I think what will end up happening though is that, at least in the
beginning, PSBTs will primarily be strings that people end up copy and
pasting. Since a PSBT can get pretty large, the strings are rather
cumbersome to move around, especially as hex. At least with Base64 the
strings will be smaller.
> On the other hand, suggesting a filename extension (probably .PSBT?) and a mime-type to match, are helpful since wallets and such will want to register with their operating systems to become handlers of those mimetypes. Really that's a lot more important for interoperability at this point, than an encoding.
Agreed. I will include those in the BIP.
> Looking forward to test vectors, and I might have more to say once my code can handle them (again).
>
> Feedback on the BIP as it stands now:
>
> - Appendix A needs an update, and I suggest defining symbols (PK_PARTIAL_SIG == 0x02) for the numeric key values. This helps implementers as we don't all define our own symbols and/or use numeric constants in our code.
Okay.
> - Those tables are just not working. Might want to reformat as descriptive lists, point form, or generally anything else... sorry.
I will try my best to fix that. Mediawiki sucks...
Andrew
next prev parent reply other threads:[~2018-06-23 20:33 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-15 23:34 Pieter Wuille
2018-06-16 15:00 ` Peter D. Gray
2018-06-19 9:38 ` Jonas Schnelli
2018-06-19 14:20 ` matejcik
2018-06-19 15:20 ` Jonas Schnelli
2018-06-21 20:28 ` Peter D. Gray
2018-06-19 17:16 ` Pieter Wuille
2018-06-21 11:29 ` matejcik
2018-06-21 17:39 ` Pieter Wuille
2018-06-21 11:44 ` Tomas Susanka
2018-06-19 14:22 ` matejcik
2018-06-21 0:39 ` Achow101
2018-06-21 14:32 ` Tomas Susanka
2018-06-21 15:40 ` Greg Sanders
2018-06-21 19:56 ` Peter D. Gray
2018-06-21 21:39 ` Gregory Maxwell
2018-06-22 19:10 ` Pieter Wuille
2018-06-22 22:28 ` Achow101
2018-06-23 17:00 ` William Casarin
2018-06-23 20:33 ` Andrew Chow [this message]
2018-06-24 8:19 ` Andrea
2018-06-24 8:28 ` Andrew Chow
2018-06-24 9:00 ` Andrea
2018-06-23 18:27 ` Peter D. Gray
2018-06-25 19:47 ` Tomas Susanka
2018-06-25 20:10 ` Jonas Schnelli
2018-06-25 20:30 ` Achow101
2018-06-26 15:33 ` matejcik
2018-06-26 16:58 ` William Casarin
2018-06-26 17:11 ` Marek Palatinus
2018-06-27 14:11 ` matejcik
2018-06-26 20:30 ` Pieter Wuille
2018-06-27 14:04 ` matejcik
2018-06-27 15:06 ` Pieter Wuille
2018-06-29 9:53 ` matejcik
2018-06-29 19:12 ` Achow101
2018-06-29 20:31 ` Peter D. Gray
2018-07-04 13:19 ` matejcik
2018-07-04 18:35 ` Achow101
2018-07-05 17:23 ` Jason Les
2018-07-04 19:09 ` Pieter Wuille
2018-07-05 11:52 ` matejcik
2018-07-05 22:06 ` Pieter Wuille
2018-07-10 12:10 ` matejcik
2018-07-11 18:27 ` Pieter Wuille
2018-07-11 20:05 ` Gregory Maxwell
2018-07-11 20:54 ` [bitcoin-dev] BIP 174 thoughts on graphics vv01f
2018-06-26 21:56 ` [bitcoin-dev] BIP 174 thoughts Achow101
2018-06-27 6:09 ` William Casarin
2018-06-27 13:39 ` Andrea
2018-06-27 17:55 ` Achow101
2018-06-28 20:42 ` Rodolfo Novak
2018-07-05 19:20 ` William Casarin
2018-07-06 18:59 ` Achow101
2018-06-20 0:39 Jason Les
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