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Add montgomery form point arithmetic #9

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Merged
rustaceanrob merged 1 commit into from
Jul 11, 2026
Merged

Add montgomery form point arithmetic #9

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12 changes: 10 additions & 2 deletions curve/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,14 @@ use core::fmt;
use core::hash::{Hash, Hasher};
use field::{Field, FieldElement, Secp256k1FieldOrder, Secp256k1GroupOrder, Sqrt3Mod4};

pub mod montgomery;

pub use montgomery::{
Csidh512BaseCurve, ExtensionMontgomeryCurve, ExtensionMontgomeryPoint,
ExtensionMontgomeryPointRepresentation, MontgomeryCurve, MontgomeryPoint,
MontgomeryPointRepresentation,
};

pub trait Curve<F: Field>: fmt::Debug + Clone + Copy + PartialEq + Eq {
fn a(&self) -> FieldElement<F>;
fn b(&self) -> FieldElement<F>;
Expand Down Expand Up @@ -619,7 +627,7 @@ mod tests {
assert!(E.lift(Fe::zero()).is_none());
}

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
struct Fp13;

impl Field for Fp13 {
Expand All @@ -628,7 +636,7 @@ mod tests {
const PARAMS: MontgomeryParams<[u64; 1]> = MontgomeryParams::new([9], 0xB13B13B13B13B13B);
}

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
struct Fr7;

impl Field for Fr7 {
Expand Down
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