Mike Hearn [ARCHIVE] on Nostr: 📅 Original date posted:2015-01-19 📝 Original message:> > I'm a bit confused. ...
📅 Original date posted:2015-01-19
📝 Original message:>
> I'm a bit confused. It's been a long time since I looked at protobuf (and
> will have to dig into it soon), but I seem to recall it doesn't have any of
> the determinism properties you guys just said.
>
It's not guaranteed no, which is why we store signed sub-messages as byte
arrays instead of typed submessages. In practice though, most
implementations do seem to serialise things the same way. I recall Python
used to be an odd one out, unsure if it still is.
OK, I guess we can boil this down more simply. BIP 70 uses protocol buffers
because I designed it and implemented the original prototype (with lots of
input from Gavin and an earlier proposal by sipa). I used protocol buffers
because, beyond all their nice properties, I used to work at Google and so
was very familiar with them.
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📝 Original message:>
> I'm a bit confused. It's been a long time since I looked at protobuf (and
> will have to dig into it soon), but I seem to recall it doesn't have any of
> the determinism properties you guys just said.
>
It's not guaranteed no, which is why we store signed sub-messages as byte
arrays instead of typed submessages. In practice though, most
implementations do seem to serialise things the same way. I recall Python
used to be an odd one out, unsure if it still is.
OK, I guess we can boil this down more simply. BIP 70 uses protocol buffers
because I designed it and implemented the original prototype (with lots of
input from Gavin and an earlier proposal by sipa). I used protocol buffers
because, beyond all their nice properties, I used to work at Google and so
was very familiar with them.
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