absolutebi/serai
1
0
Fork 0
mirror of https://github.com/serai-dex/serai.git synced 2025-12-10 05:09:22 +00:00
Code Issues Packages Projects Releases Wiki Activity

Minimize use of lazy_static in ed448

Browse Source 
Increases usage of const values along with overall Field impl sanity 
with regards to the crypto_bigint backend.
This commit is contained in:
Luke Parker
2022-08-31 03:33:19 -04:00
parent a59bbe7635
commit 73566e756d
6 changed files with 100 additions and 112 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
crypto/ed448/src/scalar.rs
View File

@@ -1,5 +1,3 @@
use lazy_static::lazy_static;
use zeroize::Zeroize;
use crypto_bigint::{U512, U1024};
@@ -10,19 +8,21 @@ pub use crate::field;
pub struct Scalar(pub(crate) U512);
// 2**446 - 13818066809895115352007386748515426880336692474882178609894547503885
lazy_static! {
pub static ref MODULUS: Scalar = Scalar(U512::from_be_hex(concat!(
"00000000000000",
"00",
"3fffffffffffffffffffffffffffffffffffffffffffffffffffffff",
"7cca23e9c44edb49aed63690216cc2728dc58f552378c292ab5844f3",
)));
static ref WIDE_MODULUS: U1024 = {
let res = U1024::from((U512::ZERO, MODULUS.0));
debug_assert_eq!(MODULUS.0.to_le_bytes()[..], res.to_le_bytes()[.. 64]);
res
};
}
pub const MODULUS: Scalar = Scalar(U512::from_be_hex(concat!(
"00000000000000",
"00",
"3fffffffffffffffffffffffffffffffffffffffffffffffffffffff",
"7cca23e9c44edb49aed63690216cc2728dc58f552378c292ab5844f3",
)));
const WIDE_MODULUS: U1024 = U1024::from_be_hex(concat!(
"0000000000000000000000000000000000000000000000000000000000000000",
"0000000000000000000000000000000000000000000000000000000000000000",
"00000000000000",
"00",
"3fffffffffffffffffffffffffffffffffffffffffffffffffffffff",
"7cca23e9c44edb49aed63690216cc2728dc58f552378c292ab5844f3",
));
field!(Scalar, MODULUS, WIDE_MODULUS, 446);