From: Jeff Garzik <jgarzik@bitpay•com>
To: Mike Hearn <mike@plan99•net>
Cc: Nicolas DORIER <nicolas.dorier@gmail•com>,
Bitcoin Dev <bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] BIP70: why Google Protocol Buffers for encoding?
Date: Wed, 28 Jan 2015 11:04:58 -0500 [thread overview]
Message-ID: <CAJHLa0Mu3Mjn=N-fTQ_fjwp+NUpfBqpdnXZiHoKz1s3tcZa+Cg@mail.gmail.com> (raw)
In-Reply-To: <CANEZrP3PCHaTO3-HA3GHFxwuJJpW2dbvPuV4R1sFPcFW49uGgw@mail.gmail.com>
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Not to mention the tiresome and error-prone task of writing your own
JSON-to-schema marshalling code -- or something equivalent to the protobufs
compiler and libs for JSON.
protobufs -- and its modern competitors such as msgpack -- natively provide
type support in a way that must be hacked into JSON or XML.
The protobuf/msgpack design is engineered to avoid bugs routinely found in
JSON parsing code; due to the amount of code & effort involved in JSON
input sanity checking, bugs and inconsistencies inevitable arise. We have
seen this in bitcoind with JSON-RPC.
On Wed, Jan 28, 2015 at 10:42 AM, Mike Hearn <mike@plan99•net> wrote:
> On the other hand, if you charge the developer (and not the plateform) to
>> check certificate validity, it means that you have to develop a different
>> codebase for all plateform you are targeting, because each plateform store
>> trusted root certificate in a different manner with different APIs, and
>> also have different types representing a X509 Certificate.
>>
>
> That's what cross-platform abstraction libraries are for. Both Java and Qt
> provide a key store library that can load from either the OS root store or
> a custom one. If your chosen app platform doesn't, OK, then you'll have to
> make or find one yourself. Perhaps contribute it upstream or make it a
> library. But that's not a limitation of BIP70.
>
> Just as a reminder, there is no obligation to use the OS root store. You
> can (and quite possibly should) take a snapshot of the Mozilla/Apple/MSFT
> etc stores and load it in your app. We do this in bitcoinj by default to
> avoid cases where BIP70 requests work on some platforms and not others,
> although the developer can easily override this and use the OS root store
> instead.
>
> Of all possible solutions, using a third party service to convert things
> to JSON is one of the least obvious and highest effort. I don't know anyone
> else who arrived at such a conclusion and respectfully disagree that this
> is a problem with the design choices in BIP70. It sounds like a bizarre
> hack around lack of features in whatever runtime you're using.
>
>
>
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>
--
Jeff Garzik
Bitcoin core developer and open source evangelist
BitPay, Inc. https://bitpay.com/
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next prev parent reply other threads:[~2015-01-28 16:05 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-28 12:45 Nicolas DORIER
2015-01-28 13:32 ` Wladimir
2015-01-28 14:00 ` Nicolas DORIER
2015-01-28 15:42 ` Mike Hearn
2015-01-28 16:04 ` Jeff Garzik [this message]
2015-01-28 16:52 ` Nicolas DORIER
2015-01-28 17:29 ` Jeff Garzik
2015-01-28 17:45 ` Mike Hearn
2015-01-28 16:19 ` Giuseppe Mazzotta
2015-01-28 16:51 ` Matt Whitlock
2015-01-28 17:02 ` Mike Hearn
2015-01-28 16:34 ` Nicolas DORIER
2015-01-28 16:55 ` Mike Hearn
2015-01-28 17:04 ` Nicolas Dorier
2015-01-28 17:14 ` Mike Hearn
2015-01-28 17:17 ` Angel Leon
2015-01-28 17:27 ` Nicolas DORIER
-- strict thread matches above, loose matches on Subject: below --
2015-01-19 19:07 Richard Brady
2015-01-19 19:09 ` Jeff Garzik
2015-01-19 19:16 ` Richard Brady
2015-01-19 19:34 ` Jeff Garzik
2015-01-19 19:48 ` Peter Todd
2015-01-19 19:57 ` Richard Brady
2015-01-19 20:03 ` Alan Reiner
2015-01-19 20:06 ` Peter Todd
2015-01-19 20:40 ` Mike Hearn
2015-01-19 20:56 ` Gavin Andresen
2015-01-19 21:22 ` Brian Hoffman
2015-01-19 20:59 ` Ross Nicoll
2015-01-24 13:19 ` Isidor Zeuner
2015-01-25 22:59 ` Ross Nicoll
2015-03-14 15:58 ` Isidor Zeuner
2015-03-24 12:08 ` Jorge Timón
2015-01-19 21:21 ` Jeff Garzik
2015-01-19 19:19 ` Matt Whitlock
2015-01-19 19:37 ` Mike Hearn
2015-01-19 19:38 ` Jeff Garzik
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