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Add CommitmentProver trait, and add KZG prover to it (#62)

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* Add KZG commitment scheme adapted to vector commitment

Add KZG commitment scheme adapted to vector commitment
Also move the `src/pedersen.rs` into `src/commitment/pedersen.rs` where
it will coexist with `kzg.rs` and the trait defined in
`src/commitment/mod.rs`.

* Adapt Pedersen into the new CommitmentProver trait

* add CommitmentProver (Pedersen&KZG) homomorphic property test

* polishing

* Use divide_with_q_and_r, rename skip_first_zero_coeffs

Co-authored-by: han0110 <tinghan0110@gmail.com>

---------

Co-authored-by: han0110 <tinghan0110@gmail.com>
This commit is contained in:
arnaucube
2024-01-25 14:45:01 +01:00
committed by GitHub
parent 7e3d2dfa43
commit 47e47cc2af
16 changed files with 422 additions and 33 deletions
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11
src/folding/nova/mod.rs
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@@ -7,8 +7,11 @@ use ark_ec::{CurveGroup, Group};
use ark_std::fmt::Debug;
use ark_std::{One, Zero};
use crate::commitment::{
pedersen::{Params as PedersenParams, Pedersen},
CommitmentProver,
};
use crate::folding::circuits::nonnative::point_to_nonnative_limbs;
use crate::pedersen::{Params as PedersenParams, Pedersen};
use crate::utils::vec::is_zero_vec;
use crate::Error;
@@ -89,11 +92,13 @@ where
<C as Group>::ScalarField: Absorb,
{
pub fn new(w: Vec<C::ScalarField>, e_len: usize) -> Self {
// note: at the current version, we don't use the blinding factors and we set them to 0
// always.
Self {
E: vec![C::ScalarField::zero(); e_len],
rE: C::ScalarField::zero(), // because we use C::zero() as cmE
rE: C::ScalarField::zero(),
W: w,
rW: C::ScalarField::one(),
rW: C::ScalarField::zero(),
}
}
pub fn commit(