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Update crypto-bigint to 0.5

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This commit is contained in:
Luke Parker
2023-03-17 15:31:04 -04:00
parent f2218b4d4e
commit 9952c67d98
5 changed files with 25 additions and 20 deletions
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11
crypto/ed448/src/backend.rs
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@@ -33,7 +33,7 @@ macro_rules! field {
use rand_core::RngCore;
use generic_array::{typenum::U57, GenericArray};
use crypto_bigint::{Integer, Encoding};
use crypto_bigint::{Integer, NonZero, Encoding};
use group::ff::{Field, PrimeField, FieldBits, PrimeFieldBits};
@@ -45,7 +45,7 @@ macro_rules! field {
use $crate::backend::u8_from_bool;
fn reduce(x: U1024) -> U512 {
U512::from_le_slice(&x.reduce(&$WIDE_MODULUS).unwrap().to_le_bytes()[.. 64])
U512::from_le_slice(&x.rem(&NonZero::new($WIDE_MODULUS).unwrap()).to_le_bytes()[.. 64])
}
constant_time!($FieldName, U512);
@@ -54,10 +54,7 @@ macro_rules! field {
$FieldName,
|x, y| U512::add_mod(&x, &y, &$MODULUS.0),
|x, y| U512::sub_mod(&x, &y, &$MODULUS.0),
|x, y| {
let wide = U512::mul_wide(&x, &y);
reduce(U1024::from((wide.1, wide.0)))
}
|x, y| reduce(U1024::from(U512::mul_wide(&x, &y)))
);
from_uint!($FieldName, U512);
@@ -122,7 +119,7 @@ macro_rules! field {
*self * self
}
fn double(&self) -> Self {
$FieldName((self.0 << 1).reduce(&$MODULUS.0).unwrap())
$FieldName((self.0 << 1).rem(&NonZero::new($MODULUS.0).unwrap()))
}
fn invert(&self) -> CtOption<Self> {