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implement Nova's AugmentedFCircuit (#33)

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* impl AugmentedFCircuit non-base case

* add multiple iterations to AugmentedFCircuit test

* implement base case on AugmentedFCircuit and test

* Update cmE of E=0-vec to work as zero point

Update cmE of E=0-vec to work as zero point instead of as cm(0-vec)

* patch r1cs-std dep to a cherry-picked version with the zero-scalar-mult fix

* refactor FCircuit to make it more suitable inside the AugmentedFCircuit
This commit is contained in:
arnaucube
2023-10-30 09:02:19 +01:00
committed by GitHub
parent 7656c6bd6c
commit 597ac27288
7 changed files with 552 additions and 76 deletions
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10
src/folding/circuits/cyclefold.rs
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@@ -21,9 +21,8 @@ impl<C: CurveGroup, GC: CurveVar<C, CF<C>>> ECRLC<C, GC> {
p1: GC,
p2: GC,
p3: GC,
) -> Result<(), SynthesisError> {
p3.enforce_equal(&(p1 + p2.scalar_mul_le(r_bits.iter())?))?;
Ok(())
) -> Result<Boolean<CF<C>>, SynthesisError> {
p3.is_eq(&(p1 + p2.scalar_mul_le(r_bits.iter())?))
}
}
@@ -32,7 +31,7 @@ mod tests {
use super::*;
use ark_ff::{BigInteger, PrimeField};
use ark_pallas::{constraints::GVar, Fq, Fr, Projective};
use ark_r1cs_std::alloc::AllocVar;
use ark_r1cs_std::{alloc::AllocVar, eq::EqGadget};
use ark_relations::r1cs::ConstraintSystem;
use ark_std::UniformRand;
use std::ops::Mul;
@@ -59,7 +58,8 @@ mod tests {
let p3Var = GVar::new_witness(cs.clone(), || Ok(p3)).unwrap();
// check ECRLC circuit
ECRLC::<Projective, GVar>::check(rbitsVar, p1Var, p2Var, p3Var).unwrap();
let check_pass = ECRLC::<Projective, GVar>::check(rbitsVar, p1Var, p2Var, p3Var).unwrap();
check_pass.enforce_equal(&Boolean::<Fq>::TRUE).unwrap();
assert!(cs.is_satisfied().unwrap());
}
}