Maybe there's some hole in Jorge's logic and scrapping blockmaxsize has
quadratic hashing risks, and maybe James' 10KB is too ambitious; but even
if so, a simple 1MB tx size limit would clearly do the trick.  The broader
point is that quadratic hashing is not a compelling reason to keep
blockmaxsize post-HF: does someone have a better one?


On May 30, 2017 9:46 PM, "Jean-Paul Kogelman via bitcoin-dev" <
bitcoin-dev@lists.linuxfoundation.org> wrote:

> That would invalidate any pre-signed transactions that are currently out
> there. You can't just change the rules out from under people.
>
>
> On May 30, 2017, at 4:50 PM, James MacWhyte via bitcoin-dev <
> bitcoin-dev@lists.linuxfoundation.org> wrote:
>
>
>
>>  The 1MB classic block size prevents quadratic hashing
>> problems from being any worse than they are today.
>>
>>
> Add a transaction-size limit of, say, 10kb and the quadratic hashing
> problem is a non-issue. Donezo.
>
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