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From: Peter Todd <pete@petertodd.org>
To: Luke Dashjr <luke@dashjr.org>,
	Bitcoin Protocol Discussion
	<bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] Even more proposed BIP extensions to BIP 0070
Date: Tue, 21 Jun 2016 18:10:08 -0400	[thread overview]
Message-ID: <20160621221008.GB10196@fedora-21-dvm> (raw)
In-Reply-To: <201606212044.38931.luke@dashjr.org>

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On Tue, Jun 21, 2016 at 08:44:37PM +0000, Luke Dashjr via bitcoin-dev wrote:
> On Monday, June 20, 2016 5:33:32 PM Erik Aronesty via bitcoin-dev wrote:
> > BIP 0070 has been a a moderate success, however, IMO:
> > 
> > - protocol buffers are inappropriate since ease of use and extensibility is
> > desired over the minor gains of efficiency in this protocol.  Not too late
> > to support JSON messages as the standard going forward
> 
> IMO JSON is too prone to gratuitous inefficiency (both at network and CPU 
> level), parser bugs, etc. Even the best C implementation (jansson) has serious 
> issues with Number handling.
> 
> A few years ago, I looked into binary alternatives to JSON and concluded they 
> all had problems, while it seems more than reasonable to do even dynamic 
> parsing of protobuf messages. So to conclude, I prefer to stick to protobuf 
> unless a clearly superior protocol turns up.

I'll second that statement.

Ease of use isn't a very good criteria for security-critical software handling
money, and the JSON standard has a very large amount of degrees of freedom in
how people have implemented it historically. Even protobuf I'd personally avoid
using on that basis, as protobuf encoding isn't deterministic: you can encode
the same data in multiple ways.

Unfortunately there isn't a viable alternative, so we're probably stuck with
protobuf right now for standards that want to see wide adoption in the near
future; I've got a few projects that need an alternative, which I'm working on,
but that's a ways off.

-- 
https://petertodd.org 'peter'[:-1]@petertodd.org

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  parent reply	other threads:[~2016-06-21 22:10 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-20 17:33 [bitcoin-dev] Even more proposed BIP extensions to BIP 0070 Erik Aronesty
2016-06-21  9:43 ` Andreas Schildbach
2016-06-21 17:09   ` Erik Aronesty
2016-06-21 19:50   ` Andy Schroder
2016-06-21 20:44 ` Luke Dashjr
2016-06-21 21:42   ` Erik Aronesty
2016-06-22  0:36     ` Luke Dashjr
2016-06-21 22:10   ` Peter Todd [this message]
2016-06-21 22:19   ` Peter Todd
2016-06-21 20:56 ` James MacWhyte
2016-06-21 21:17   ` Matt David
2016-06-21 22:13 ` Peter Todd
2016-06-21 22:50   ` James MacWhyte
2016-06-21 23:02     ` Peter Todd
2016-06-22  0:14   ` Justin Newton
2016-06-23 10:56     ` Peter Todd
2016-06-23 11:30       ` Pieter Wuille
2016-06-23 11:39         ` Peter Todd
2016-06-23 12:01           ` Pieter Wuille
2016-06-23 12:10             ` Peter Todd
2016-06-23 12:16               ` Pieter Wuille
2016-06-23 12:43                 ` Peter Todd
2016-06-23 13:03       ` Erik Aronesty
2016-06-23 16:58       ` Aaron Voisine
2016-06-23 20:46       ` s7r
2016-06-23 21:07         ` Justin Newton
2016-06-23 21:31           ` Police Terror
2016-06-23 22:44             ` Justin Newton
2016-06-24  2:26               ` Erik Aronesty
2016-06-24  5:27                 ` James MacWhyte
2016-06-22  7:57 ` Thomas Voegtlin
2016-06-22 14:25   ` Erik Aronesty
2016-06-22 15:12     ` Andy Schroder
2016-06-22 15:30       ` Erik Aronesty
2016-06-22 16:20         ` Andy Schroder
2016-06-22 17:07           ` Erik Aronesty
2016-06-22 20:11             ` James MacWhyte
2016-06-22 20:37               ` Erik Aronesty
2016-06-23 11:50     ` Andreas Schildbach

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