smuellerDD
commented
2 months ago Am Mittwoch, 21. August 2024, 10:09:05 MESZ schrieb kamlesh0hrs:
Hi kamlesh0hrs,
Hi Stephan,
Are you planning to add support of SPHINCS+ to leancrypto ? FIPS-205 (SLH-DSA) is now standardised and is a fallback solution if Lattice based algorithms are broken. It will be great if we can have support for SLH-DSA.
For starters, leancrypto offers hybrid algos of Kyber and Dilithium where any potential issue with them should be caught.
Then I am not convinced that SPHINCS+ is truly helpful for a general-purpose signature mechanism as it is comparatively slow (granted, I did not perform my own measurements - so that statement is hear-say).
That said, SLH-DSA is certainly a viable option, but I would like to wait a bit (at least past the ICMC conference later in September) where I will be able to speak to the FIPS 203/4/5 authors about their state for the round 4 candidates. I certainly want to add another signature schema, but I am not sure whether SLH-DSA should be the one.
With that in mind, I will certainly not want to implement Falcon with its floating point arithmetics.
This means, I would like to keep the issue open until I have more information.
Ciao Stephan
kamlesh0hrs
Hi Stephan,
Are you planning to add support of SPHINCS+ to leancrypto ? FIPS-205 (SLH-DSA) is now standardised and is a fallback solution if Lattice based algorithms are broken. It will be great if we can have support for SLH-DSA.