Add Keccak #65
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Add Keccak #65
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Rebase on top of #81 |
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WIP adding Keccak via SLOTHY.
Right now this is a hybrid 4x Keccak (2 scalar, 2 Neon). I de-interleaved the previous manual-interleaved code and optimized it via SLOTHY. There is still a lot of potential for refactoring.
In the current state (slothy-optimizer/pqax@c69030c), the results look as follow:
For reference:
The 6624 is already quite a bit faster than the 7288 reported in https://kannwischer.eu/papers/2022_armv8keccak.pdf
This is still slower than the 1x scalar one in the same paper which was 1418; 1418*4=5672)
Related to slothy-optimizer/pqax#6