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mratsim / constantine

Constantine: modular, high-performance, zero-dependency cryptography stack for proof systems and blockchain protocols.
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Bug: Cubic extension conjugate #398

Open mratsim opened 6 days ago

mratsim commented 6 days ago

From @yelhousni

https://github.com/mratsim/constantine/blob/ab6fa6ae1bbbd1b10071a92ec209b381b5d82511/constantine/math/extension_fields/towers.nim#L221-L225

This is only valid if non-residue is sqrt(-1) and (p-1)/3 is odd which is the case for BLS12-381.