I don't think it would - what you implement might have more side channel attacks in, but if it's more of a PoC it shouldn't matter. On the other hand, even if

I don't think it would - what you implement might have more side channel attacks in, but if it's more of a PoC it shouldn't matter. On the other hand, even if it did, FPGAs are quite cheap ($100-ish for a suitable one) and if you're a serious cryptographer you're almost certainly going to be based at a university or an agency of some kind which will be able to afford one (or have a whole bunch lying around).