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https://github.com/serai-dex/serai.git
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f7c13fd1ca
Removes usage of dalek-ff-group/multiexp for curve25519-dalek. Makes compiling in the generators an optional feature. Adds a structured batch verifier which should be notably more performant. Documentation and clean up still necessary.
49 lines
1.2 KiB
Rust
49 lines
1.2 KiB
Rust
use core::ops::{Index, IndexMut};
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use std_shims::vec::Vec;
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use zeroize::{Zeroize, ZeroizeOnDrop};
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use curve25519_dalek::edwards::EdwardsPoint;
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#[cfg(test)]
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use crate::{core::multiexp, plus::ScalarVector};
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#[derive(Clone, PartialEq, Eq, Debug, Zeroize, ZeroizeOnDrop)]
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pub(crate) struct PointVector(pub(crate) Vec<EdwardsPoint>);
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impl Index<usize> for PointVector {
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type Output = EdwardsPoint;
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fn index(&self, index: usize) -> &EdwardsPoint {
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&self.0[index]
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}
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}
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impl IndexMut<usize> for PointVector {
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fn index_mut(&mut self, index: usize) -> &mut EdwardsPoint {
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&mut self.0[index]
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}
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}
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impl PointVector {
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#[cfg(test)]
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pub(crate) fn multiexp(&self, vector: &ScalarVector) -> EdwardsPoint {
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debug_assert_eq!(self.len(), vector.len());
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let mut res = Vec::with_capacity(self.len());
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for (point, scalar) in self.0.iter().copied().zip(vector.0.iter().copied()) {
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res.push((scalar, point));
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}
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multiexp(&res)
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}
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pub(crate) fn len(&self) -> usize {
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self.0.len()
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}
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pub(crate) fn split(mut self) -> (Self, Self) {
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debug_assert!(self.len() > 1);
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let r = self.0.split_off(self.0.len() / 2);
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debug_assert_eq!(self.len(), r.len());
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(self, PointVector(r))
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}
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}
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