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Implement CycleFold in Nova's IVC (#45)

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* Implement CycleFold in Nova's IVC

(CycleFold: https://eprint.iacr.org/2023/1192)

* CycleFoldChallengeGadget: add points coordinates as bytes

* Apply PR review suggestions
This commit is contained in:
arnaucube
2023-12-18 09:42:46 +01:00
committed by GitHub
parent 876e23c159
commit b4f42e7023
17 changed files with 1327 additions and 566 deletions
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13
src/folding/nova/mod.rs
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@@ -13,6 +13,7 @@ use crate::utils::vec::is_zero_vec;
use crate::Error;
pub mod circuits;
pub mod cyclefold;
pub mod ivc;
pub mod nifs;
pub mod traits;
@@ -25,11 +26,7 @@ pub struct CommittedInstance<C: CurveGroup> {
pub x: Vec<C::ScalarField>,
}
impl<C: CurveGroup> CommittedInstance<C>
where
<C as Group>::ScalarField: Absorb,
<C as ark_ec::CurveGroup>::BaseField: ark_ff::PrimeField,
{
impl<C: CurveGroup> CommittedInstance<C> {
pub fn dummy(io_len: usize) -> Self {
Self {
cmE: C::zero(),
@@ -38,7 +35,13 @@ where
x: vec![C::ScalarField::zero(); io_len],
}
}
}
impl<C: CurveGroup> CommittedInstance<C>
where
<C as Group>::ScalarField: Absorb,
<C as ark_ec::CurveGroup>::BaseField: ark_ff::PrimeField,
{
/// hash implements the committed instance hash compatible with the gadget implemented in
/// nova/circuits.rs::CommittedInstanceVar.hash.
/// Returns `H(i, z_0, z_i, U_i)`, where `i` can be `i` but also `i+1`, and `U` is the