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License: Apache License 2.0
Implementation of the Grumpkin curve in Rust.
License: Apache License 2.0
Just tried a fresh checkout of the repo and I get the error below. This error itself happens because halo2-curves
removed Group
from their lib.rs
.
derive.rs
has an impl for group::Group
and another for Group
, so I inferred that this Group
must be pasta_curves::arithmetic::Group
. However importing that brings a whole bunch of other issues I'm unsure how to solve.
error[E0432]: unresolved import `halo2curves::Group`
--> src/curve.rs:10:71
|
10 | use halo2curves::{Coordinates, CurveAffine, CurveAffineExt, CurveExt, Group};
| ^^^^^
| |
| no `Group` in the root
| help: a similar name exists in the module: `group`
I noticed today that this repo changes the halo2curves sqrt test for BN256 from
CtOption::new(tmp, tmp.square().ct_eq(self))
to
CtOption::new(tmp, !self.ct_eq(&Self::zero()))
in https://github.com/jules/grumpkin/blob/main/src/fr.rs#L194.
I noticed it when it started giving me wrong square roots for Fr elements (here BN's Fq), so wondering how that works.
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