[Bitcoin-development] Build your own nHashType

Jeff Garzik jgarzik at bitpay.com
Thu Apr 9 14:22:52 UTC 2015


On Thu, Apr 9, 2015 at 7:10 AM, Stephen Morse <stephencalebmorse at gmail.com>
wrote:

> Is hashing transaction data once for each input really a huge bottleneck,
> though? Do mobile devices have an issue with this?
>


Think about what slow transaction verification speed means.  Slower
propagation across the network.  More work per node.  Greater opportunity
for algorithmic attacks, races and other shenanigans by attackers.

-- 
Jeff Garzik
Bitcoin core developer and open source evangelist
BitPay, Inc.      https://bitpay.com/
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