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 <m...@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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Dive into the World of Parallel Programming. The Go Parallel Website,
sponsored by Intel and developed in partnership with Slashdot Media, is your
hub for all things parallel software development, from weekly thought
leadership blogs to news, videos, case studies, tutorials and more. Take a
look and join the conversation now. http://goparallel.sourceforge.net/
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