Outside of use in microchips and FPGAs does SHA-3 have a lookup table?

Question

Is SHA-3 normally used with a LUT or hash table?

Again, put some context in the question. You can quote the text by preceeding each paragraph with the > markdown operator. I know you're reading a lot about these things, but we all learn these the different ways, so some context are often needed. — DannyNiu, Apr 14 '23 at 01:08

score 0 · Accepted Answer · answered Apr 14 '23 at 02:43

Outside of use in microchips and FPGAs does SHA-3 have a lookup table?

(I'm answering the title and the question; the question might be interpreted as 'do you use SHA-3 to implement a LUT or hash table?')

Well, some implementations have the per-round constant in the Iota transform stored as a look up table (however, those are not hard to compute, so some implementations do compute them on the fly).

Other than that, the transforms that SHA-3 does internally are regular enough that we generally don't find a look up table useful.

Thank you, this will do – Unequaled Density Apr 14 '23 at 07:03 — Unequaled Density, Apr 14 '23 at 07:03

Outside of use in microchips and FPGAs does SHA-3 have a lookup table?

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