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ff: PrimeField::{is_even, is_odd}

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Jack Grigg
2020-04-21 19:05:19 +12:00
parent 232f0a50b8
commit 1fdca393bb
10 changed files with 54 additions and 8 deletions
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4
zcash_primitives/src/jubjub/montgomery.rs
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@@ -1,4 +1,4 @@
use ff::{BitIterator, Field, PrimeField, PrimeFieldRepr, SqrtField};
use ff::{BitIterator, Field, PrimeField, SqrtField};
use std::ops::{AddAssign, MulAssign, Neg, SubAssign};
use subtle::CtOption;
@@ -60,7 +60,7 @@ impl<E: JubjubEngine> Point<E, Unknown> {
rhs.add_assign(&x2);
rhs.sqrt().map(|mut y| {
if y.into_repr().is_odd() != sign {
if y.is_odd() != sign {
y = y.neg();
}