BN254 and Grumpkin Poseidon configurations (#106)

* Add BN254 and Grumpkin Poseidon configurations

* Remove unncecessary comment

* Fix BN254 Poseidon config test

* Correction

* Update folding-schemes/src/transcript/poseidon/grumpkin.rs

Co-authored-by: Pierre <pdaixmoreux@gmail.com>

---------

Co-authored-by: Pierre <pdaixmoreux@gmail.com>

examples/external_inputs.rs

@@ -25,7 +25,7 @@ use folding_schemes::folding::nova::Nova;
 use folding_schemes::frontend::FCircuit;
 use folding_schemes::{Error, FoldingScheme};
 mod utils;
-use folding_schemes::transcript::poseidon::poseidon_test_config;
+use folding_schemes::transcript::poseidon::poseidon_canonical_config;
 use utils::init_nova_ivc_params;
 
 /// This is the circuit that we want to fold, it implements the FCircuit trait. The parameter z_i
@@ -131,7 +131,7 @@ pub mod tests {
     // test to check that the ExternalInputsCircuits computes the same values inside and outside the circuit
     #[test]
     fn test_f_circuit() {
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
 
         let cs = ConstraintSystem::<Fr>::new_ref();
 
@@ -169,7 +169,7 @@ fn main() {
     ];
     assert_eq!(external_inputs.len(), num_steps);
 
-    let poseidon_config = poseidon_test_config::<Fr>();
+    let poseidon_config = poseidon_canonical_config::<Fr>();
     let F_circuit = ExternalInputsCircuits::<Fr>::new(poseidon_config).unwrap();
 
     println!("Prepare Nova ProverParams & VerifierParams");

examples/utils.rs

@@ -21,7 +21,7 @@ use folding_schemes::{
         decider_eth_circuit::DeciderEthCircuit, get_r1cs, Nova, ProverParams, VerifierParams,
     },
     frontend::FCircuit,
-    transcript::poseidon::poseidon_test_config,
+    transcript::poseidon::poseidon_canonical_config,
     FoldingScheme,
 };
 
@@ -37,7 +37,7 @@ pub(crate) fn init_nova_ivc_params>(
     KZGVerifierKey<Bn254>,
 ) {
     let mut rng = ark_std::test_rng();
-    let poseidon_config = poseidon_test_config::<Fr>();
+    let poseidon_config = poseidon_canonical_config::<Fr>();
 
     // get the CM & CF_CM len
     let (r1cs, cf_r1cs) = get_r1cs::<G1, GVar, G2, GVar2, FC>(&poseidon_config, F_circuit).unwrap();

folding-schemes/Cargo.toml

@@ -9,6 +9,7 @@ ark-ff = "^0.4.0"
 ark-poly = "^0.4.0"
 ark-std = "^0.4.0"
 ark-crypto-primitives = { version = "^0.4.0", default-features = false, features = ["r1cs", "sponge", "crh"] }
+ark-grumpkin = {version="0.4.0"}
 ark-poly-commit = "^0.4.0"
 ark-relations = { version = "^0.4.0", default-features = false }
 ark-r1cs-std = { version = "0.4.0", default-features = false } # this is patched at the workspace level

folding-schemes/src/commitment/ipa.rs

@@ -567,7 +567,7 @@ mod tests {
     use std::ops::Mul;
 
     use super::*;
-    use crate::transcript::poseidon::{poseidon_test_config, PoseidonTranscript};
+    use crate::transcript::poseidon::{poseidon_canonical_config, PoseidonTranscript};
 
     #[test]
     fn test_ipa() {
@@ -583,7 +583,7 @@ mod tests {
         // setup params
         let (params, _) = IPA::<Projective, hiding>::setup(&mut rng, d).unwrap();
 
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
         // init Prover's transcript
         let mut transcript_p = PoseidonTranscript::<Projective>::new(&poseidon_config);
         // init Verifier's transcript
@@ -627,7 +627,7 @@ mod tests {
         // setup params
         let (params, _) = IPA::<Projective, hiding>::setup(&mut rng, d).unwrap();
 
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
         // init Prover's transcript
         let mut transcript_p = PoseidonTranscript::<Projective>::new(&poseidon_config);
         // init Verifier's transcript

folding-schemes/src/commitment/kzg.rs

@@ -244,12 +244,12 @@ mod tests {
     use ark_std::{test_rng, UniformRand};
 
     use super::*;
-    use crate::transcript::poseidon::{poseidon_test_config, PoseidonTranscript};
+    use crate::transcript::poseidon::{poseidon_canonical_config, PoseidonTranscript};
 
     #[test]
     fn test_kzg_commitment_scheme() {
         let mut rng = &mut test_rng();
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
         let transcript_p = &mut PoseidonTranscript::<G1>::new(&poseidon_config);
         let transcript_v = &mut PoseidonTranscript::<G1>::new(&poseidon_config);
 

folding-schemes/src/commitment/mod.rs

@@ -78,14 +78,14 @@ mod tests {
     use super::kzg::{ProverKey, KZG};
     use super::pedersen::Pedersen;
     use crate::transcript::{
-        poseidon::{poseidon_test_config, PoseidonTranscript},
+        poseidon::{poseidon_canonical_config, PoseidonTranscript},
         Transcript,
     };
 
     #[test]
     fn test_homomorphic_property_using_Commitment_trait() {
         let mut rng = &mut test_rng();
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
         let n: usize = 128;
 
         // set random vector for the test

folding-schemes/src/commitment/pedersen.rs

@@ -216,7 +216,7 @@ mod tests {
     use ark_std::UniformRand;
 
     use super::*;
-    use crate::transcript::poseidon::{poseidon_test_config, PoseidonTranscript};
+    use crate::transcript::poseidon::{poseidon_canonical_config, PoseidonTranscript};
 
     #[test]
     fn test_pedersen() {
@@ -229,7 +229,7 @@ mod tests {
         let n: usize = 10;
         // setup params
         let (params, _) = Pedersen::<Projective>::setup(&mut rng, n).unwrap();
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
 
         // init Prover's transcript
         let mut transcript_p = PoseidonTranscript::<Projective>::new(&poseidon_config);

folding-schemes/src/folding/circuits/sum_check.rs

@@ -173,7 +173,7 @@ mod tests {
     use crate::{
         folding::circuits::sum_check::{IOPProofVar, VPAuxInfoVar},
         transcript::{
-            poseidon::{poseidon_test_config, PoseidonTranscript, PoseidonTranscriptVar},
+            poseidon::{poseidon_canonical_config, PoseidonTranscript, PoseidonTranscriptVar},
             Transcript, TranscriptVar,
         },
         utils::{
@@ -207,7 +207,7 @@ mod tests {
     {
         let mut rng = ark_std::test_rng();
         let poseidon_config: PoseidonConfig<C::ScalarField> =
-            poseidon_test_config::<C::ScalarField>();
+            poseidon_canonical_config::<C::ScalarField>();
         let mut poseidon_transcript_prove = PoseidonTranscript::<C>::new(&poseidon_config);
         let poly_mle = DenseMultilinearExtension::rand(num_vars, &mut rng);
         let virtual_poly =

folding-schemes/src/folding/hypernova/nimfs.rs

@@ -374,7 +374,7 @@ where
 pub mod tests {
     use super::*;
     use crate::ccs::tests::{get_test_ccs, get_test_z};
-    use crate::transcript::poseidon::poseidon_test_config;
+    use crate::transcript::poseidon::poseidon_canonical_config;
     use crate::transcript::poseidon::PoseidonTranscript;
     use ark_std::test_rng;
     use ark_std::UniformRand;
@@ -446,7 +446,7 @@ pub mod tests {
         let (new_instance, w2) = ccs.to_cccs(&mut rng, &pedersen_params, &z_2).unwrap();
 
         // Prover's transcript
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
         let mut transcript_p: PoseidonTranscript<Projective> =
             PoseidonTranscript::<Projective>::new(&poseidon_config);
         transcript_p.absorb(&Fr::from_le_bytes_mod_order(b"init init"));
@@ -500,7 +500,7 @@ pub mod tests {
         let (mut running_instance, mut w1) =
             ccs.to_lcccs(&mut rng, &pedersen_params, &z_1).unwrap();
 
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
 
         let mut transcript_p: PoseidonTranscript<Projective> =
             PoseidonTranscript::<Projective>::new(&poseidon_config);
@@ -597,7 +597,7 @@ pub mod tests {
         }
 
         // Prover's transcript
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
         let mut transcript_p: PoseidonTranscript<Projective> =
             PoseidonTranscript::<Projective>::new(&poseidon_config);
         transcript_p.absorb(&Fr::from_le_bytes_mod_order(b"init init"));
@@ -647,7 +647,7 @@ pub mod tests {
         let (pedersen_params, _) =
             Pedersen::<Projective>::setup(&mut rng, ccs.n - ccs.l - 1).unwrap();
 
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
         // Prover's transcript
         let mut transcript_p: PoseidonTranscript<Projective> =
             PoseidonTranscript::<Projective>::new(&poseidon_config);

folding-schemes/src/folding/nova/circuits.rs

@@ -559,7 +559,7 @@ pub mod tests {
     use crate::commitment::pedersen::Pedersen;
     use crate::folding::nova::nifs::tests::prepare_simple_fold_inputs;
     use crate::folding::nova::nifs::NIFS;
-    use crate::transcript::poseidon::poseidon_test_config;
+    use crate::transcript::poseidon::poseidon_canonical_config;
 
     #[test]
     fn test_committed_instance_var() {
@@ -615,7 +615,7 @@ pub mod tests {
     #[test]
     fn test_committed_instance_hash() {
         let mut rng = ark_std::test_rng();
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
 
         let i = Fr::from(3_u32);
         let z_0 = vec![Fr::from(3_u32)];
@@ -654,7 +654,7 @@ pub mod tests {
     #[test]
     fn test_challenge_gadget() {
         let mut rng = ark_std::test_rng();
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
 
         let u_i = CommittedInstance::<Projective> {
             cmE: Projective::rand(&mut rng),

folding-schemes/src/folding/nova/cyclefold.rs

@@ -377,7 +377,7 @@ pub mod tests {
 
     use crate::folding::nova::get_cm_coordinates;
     use crate::folding::nova::nifs::tests::prepare_simple_fold_inputs;
-    use crate::transcript::poseidon::poseidon_test_config;
+    use crate::transcript::poseidon::poseidon_canonical_config;
 
     #[test]
     fn test_committed_instance_cyclefold_var() {
@@ -488,7 +488,7 @@ pub mod tests {
     #[test]
     fn test_cyclefold_challenge_gadget() {
         let mut rng = ark_std::test_rng();
-        let poseidon_config = poseidon_test_config::<Fq>();
+        let poseidon_config = poseidon_canonical_config::<Fq>();
 
         let u_i = CommittedInstance::<Projective> {
             cmE: Projective::zero(), // zero on purpose, so we test also the zero point case
@@ -550,7 +550,7 @@ pub mod tests {
     #[test]
     fn test_cyclefold_hash_gadget() {
         let mut rng = ark_std::test_rng();
-        let poseidon_config = poseidon_test_config::<Fq>();
+        let poseidon_config = poseidon_canonical_config::<Fq>();
 
         let U_i = CommittedInstance::<Projective> {
             cmE: Projective::rand(&mut rng),

folding-schemes/src/folding/nova/decider_eth.rs

@@ -292,7 +292,7 @@ pub mod tests {
     use crate::commitment::pedersen::Pedersen;
     use crate::folding::nova::{get_cs_params_len, ProverParams};
     use crate::frontend::tests::CubicFCircuit;
-    use crate::transcript::poseidon::poseidon_test_config;
+    use crate::transcript::poseidon::poseidon_canonical_config;
 
     #[test]
     fn test_decider() {
@@ -319,7 +319,7 @@ pub mod tests {
         >;
 
         let mut rng = ark_std::test_rng();
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
 
         let F_circuit = CubicFCircuit::<Fr>::new(()).unwrap();
         let z_0 = vec![Fr::from(3_u32)];

folding-schemes/src/folding/nova/decider_eth_circuit.rs

@@ -614,7 +614,7 @@ pub mod tests {
     use crate::commitment::pedersen::Pedersen;
     use crate::folding::nova::{get_cs_params_len, ProverParams, VerifierParams};
     use crate::frontend::tests::{CubicFCircuit, CustomFCircuit, WrapperCircuit};
-    use crate::transcript::poseidon::poseidon_test_config;
+    use crate::transcript::poseidon::poseidon_canonical_config;
     use crate::FoldingScheme;
 
     use crate::ccs::r1cs::tests::{get_test_r1cs, get_test_z};
@@ -768,7 +768,7 @@ pub mod tests {
     #[test]
     fn test_decider_circuit() {
         let mut rng = ark_std::test_rng();
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
 
         let F_circuit = CubicFCircuit::<Fr>::new(()).unwrap();
         let z_0 = vec![Fr::from(3_u32)];
@@ -843,7 +843,7 @@ pub mod tests {
     #[test]
     fn test_kzg_challenge_gadget() {
         let mut rng = ark_std::test_rng();
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
 
         let U_i = CommittedInstance::<Projective> {
             cmE: Projective::rand(&mut rng),

folding-schemes/src/folding/nova/mod.rs

@@ -815,14 +815,14 @@ pub mod tests {
 
     use crate::commitment::pedersen::Pedersen;
     use crate::frontend::tests::CubicFCircuit;
-    use crate::transcript::poseidon::poseidon_test_config;
+    use crate::transcript::poseidon::poseidon_canonical_config;
 
     /// This test tests the Nova+CycleFold IVC, and by consequence it is also testing the
     /// AugmentedFCircuit
     #[test]
     fn test_ivc() {
         let mut rng = ark_std::test_rng();
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
 
         let F_circuit = CubicFCircuit::<Fr>::new(()).unwrap();
 

folding-schemes/src/folding/nova/nifs.rs

@@ -209,7 +209,7 @@ pub mod tests {
     use crate::commitment::pedersen::{Params as PedersenParams, Pedersen};
     use crate::folding::nova::circuits::ChallengeGadget;
     use crate::folding::nova::traits::NovaR1CS;
-    use crate::transcript::poseidon::{poseidon_test_config, PoseidonTranscript};
+    use crate::transcript::poseidon::{poseidon_canonical_config, PoseidonTranscript};
 
     #[allow(clippy::type_complexity)]
     pub(crate) fn prepare_simple_fold_inputs<C>() -> (
@@ -257,7 +257,7 @@ pub mod tests {
             NIFS::<C, Pedersen<C>>::compute_cmT(&pedersen_params, &r1cs, &w1, &ci1, &w2, &ci2)
                 .unwrap();
 
-        let poseidon_config = poseidon_test_config::<C::ScalarField>();
+        let poseidon_config = poseidon_canonical_config::<C::ScalarField>();
 
         let r_bits = ChallengeGadget::<C>::get_challenge_native(
             &poseidon_config,

folding-schemes/src/folding/protogalaxy/folding.rs

@@ -385,7 +385,7 @@ mod tests {
 
     use crate::ccs::r1cs::tests::{get_test_r1cs, get_test_z};
     use crate::commitment::{pedersen::Pedersen, CommitmentScheme};
-    use crate::transcript::poseidon::{poseidon_test_config, PoseidonTranscript};
+    use crate::transcript::poseidon::{poseidon_canonical_config, PoseidonTranscript};
 
     pub(crate) fn check_instance<C: CurveGroup>(
         r1cs: &R1CS<C::ScalarField>,
@@ -512,7 +512,7 @@ mod tests {
         let r1cs = get_test_r1cs::<Fr>();
 
         // init Prover & Verifier's transcript
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
         let mut transcript_p = PoseidonTranscript::<Projective>::new(&poseidon_config);
         let mut transcript_v = PoseidonTranscript::<Projective>::new(&poseidon_config);
 
@@ -552,7 +552,7 @@ mod tests {
         let r1cs = get_test_r1cs::<Fr>();
 
         // init Prover & Verifier's transcript
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
         let mut transcript_p = PoseidonTranscript::<Projective>::new(&poseidon_config);
         let mut transcript_v = PoseidonTranscript::<Projective>::new(&poseidon_config);
 

folding-schemes/src/transcript/poseidon.rs

@@ -1,3 +1,7 @@
+mod bn254;
+mod grumpkin;
+
+use ark_bn254::Fr as Bn254_Fr;
 use ark_crypto_primitives::sponge::{
     constraints::CryptographicSpongeVar,
     poseidon::{constraints::PoseidonSpongeVar, PoseidonConfig, PoseidonSponge},
@@ -5,6 +9,7 @@ use ark_crypto_primitives::sponge::{
 };
 use ark_ec::{AffineRepr, CurveGroup, Group};
 use ark_ff::{BigInteger, Field, PrimeField};
+use ark_grumpkin::Fr as Grumpkin_Fr;
 use ark_r1cs_std::{boolean::Boolean, fields::fp::FpVar};
 use ark_relations::r1cs::{ConstraintSystemRef, SynthesisError};
 use ark_std::Zero;
@@ -115,46 +120,55 @@ impl TranscriptVar for PoseidonTranscriptVar {
     }
 }
 
-/// WARNING the method poseidon_test_config is for tests only
-pub fn poseidon_test_config<F: PrimeField>() -> PoseidonConfig<F> {
-    let full_rounds = 8;
-    let partial_rounds = 31;
-    let alpha = 5;
-    let rate = 2;
-
-    let (ark, mds) = ark_crypto_primitives::sponge::poseidon::find_poseidon_ark_and_mds::<F>(
-        F::MODULUS_BIT_SIZE as u64,
-        rate,
-        full_rounds,
-        partial_rounds,
-        0,
-    );
-
-    PoseidonConfig::new(
-        full_rounds as usize,
-        partial_rounds as usize,
-        alpha,
-        mds,
-        ark,
-        rate,
-        1,
-    )
+/// This Poseidon configuration generator agrees with Circom's Poseidon(4) in the case of BN254's scalar field and
+/// makes use of the constants generated by the reference implementation script in the case of Grumpkin's scalar field.
+pub fn poseidon_canonical_config<F: PrimeField>() -> PoseidonConfig<F> {
+    let field_modulus_bytes = F::MODULUS.to_bytes_be();
+
+    if field_modulus_bytes == Bn254_Fr::MODULUS.to_bytes_be() {
+        bn254::poseidon_config::<F>()
+    } else if field_modulus_bytes == Grumpkin_Fr::MODULUS.to_bytes_be() {
+        grumpkin::poseidon_config::<F>()
+    } else {
+        let full_rounds = 8;
+        let partial_rounds = 31;
+        let alpha = 5;
+        let rate = 2;
+
+        let (ark, mds) = ark_crypto_primitives::sponge::poseidon::find_poseidon_ark_and_mds::<F>(
+            F::MODULUS_BIT_SIZE as u64,
+            rate,
+            full_rounds,
+            partial_rounds,
+            0,
+        );
+
+        PoseidonConfig::new(
+            full_rounds as usize,
+            partial_rounds as usize,
+            alpha,
+            mds,
+            ark,
+            rate,
+            1,
+        )
+    }
 }
 
 #[cfg(test)]
 pub mod tests {
     use super::*;
-    use ark_pallas::{constraints::GVar, Fq, Fr, Projective};
+    use ark_bn254::{constraints::GVar, Fq, Fr, G1Projective as G1};
+    use ark_grumpkin::Projective;
     use ark_r1cs_std::{alloc::AllocVar, groups::CurveVar, R1CSVar};
     use ark_relations::r1cs::ConstraintSystem;
-    use ark_vesta::Projective as E2Projective;
     use std::ops::Mul;
 
     #[test]
     fn test_transcript_and_transcriptvar_get_challenge() {
         // use 'native' transcript
-        let config = poseidon_test_config::<Fr>();
-        let mut tr = PoseidonTranscript::<Projective>::new(&config);
+        let config = poseidon_canonical_config::<Fr>();
+        let mut tr = PoseidonTranscript::<G1>::new(&config);
         tr.absorb(&Fr::from(42_u32));
         let c = tr.get_challenge();
 
@@ -174,8 +188,8 @@ pub mod tests {
         let nbits = crate::constants::N_BITS_RO;
 
         // use 'native' transcript
-        let config = poseidon_test_config::<Fq>();
-        let mut tr = PoseidonTranscript::<E2Projective>::new(&config);
+        let config = poseidon_canonical_config::<Fq>();
+        let mut tr = PoseidonTranscript::<Projective>::new(&config);
         tr.absorb(&Fq::from(42_u32));
 
         // get challenge from native transcript
@@ -190,7 +204,7 @@ pub mod tests {
         // get challenge from circuit transcript
         let c_var = tr_var.get_challenge_nbits(nbits).unwrap();
 
-        let P = Projective::generator();
+        let P = G1::generator();
         let PVar = GVar::new_witness(cs.clone(), || Ok(P)).unwrap();
 
         // multiply point P by the challenge in different formats, to ensure that we get the same

folding-schemes/src/transcript/poseidon/bn254.rs

@@ -0,0 +1,574 @@
+use crate::utils::vec::mat_from_str_mat;
+use ark_bn254::Fr;
+use ark_crypto_primitives::sponge::poseidon::PoseidonConfig;
+use ark_ff::{BigInteger, PrimeField};
+
+// Constants chosen to agree with Circom's choice for Poseidon(5),
+// which is the recommended width for this field according to §3 of
+// https://eprint.iacr.org/2019/458.pdf
+pub(crate) fn constants<F: PrimeField>() -> (Vec<Vec<F>>, Vec<Vec<F>>) {
+    assert_eq!(
+        F::MODULUS.to_bytes_be(),
+        Fr::MODULUS.to_bytes_be(),
+        "The prime field must be isomorphic to BN254's scalar field."
+    );
+
+    let ark_string: Vec<Vec<&'static str>> = vec![
+        vec![
+            "6652655389322448471317061533546982911992554640679550674058582942754771150993",
+            "2411464732857349694082092299330329691469354396507353145272547491824343787723",
+            "21491443688002139478732659842894153142870918973450440713149176834049574486740",
+            "20196926676989483530222124573030747187074792043523478381149800153065505592963",
+            "12986278951352369831003505493892366673723882190521699331613883287145355738793",
+        ],
+        vec![
+            "21126146258242782643168619000295062005037298340836817770565977031890883232034",
+            "15509665795506578582538177431401381655815033647735781734613703976071034655246",
+            "6989769181472743404364681671283889685042701491627165526899522083327752110839",
+            "7062179885254277466334896166987547257487047183881628199983668518000910197987",
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+            "3116148242507754420428768481157196067508084836097458698846114802493377512591",
+            "13306507137873332434793374848948087993544118494881134631519748904811343155566",
+            "18496878480807017010077624766326681523549495609998881196570603040242554712562",
+        ],
+        vec![
+            "3940126764022508707486095199473913866137718790062498893812401335738707507732",
+            "10030078765792498033316282784150304209584388923549357286679864120250994473810",
+            "18519871685760382462428068450331593474924737719734568498029727699878543899254",
+            "12599428893576891013523136950822667754415283296587096197120138265392279834128",
+            "16038578953099895530943034305356008247313649524436132877362941968861459073483",
+        ],
+        vec![
+            "14319233878082524834510736727226054073026413911339853399113450188859080424272",
+            "13710161613540579690732775978855380876556751245265568031703536595040993113748",
+            "14958726446649273856607176275240008023824615720456760403465034344703779274727",
+            "20935428111942360630758629263346308597806819928838924586682307174931367773605",
+            "5826394436548487315966647466017047216786257295199620110266250301500717796281",
+        ],
+        vec![
+            "31401797997389676486806123612280306684597605608110075525648021056710776011",
+            "10784171495708237485952707518956314344821522727746927291389338644844400581452",
+            "11604345371765580191117799693565193618158448665352599382713281103552305960442",
+            "1378145039624937931836538950217364481423707761527018494355648047365613434790",
+            "10284294167221806561993937798090888689421933711157676807977401896199778472860",
+        ],
+        vec![
+            "8233695574758520342808807499924062869636681352769371531557726871630696672029",
+            "6570581391072134029876349038190171593169496519436674767949949730275868319732",
+            "4026501263908027819614805027945064360196399012004574117767831931274788631138",
+            "21091098569404004244061462065218203986433580687172854429523306262593782053656",
+            "20711772916118045406356429185975897495222240215931761100801599257137350834799",
+        ],
+        vec![
+            "3165519312799351250309462589160165591299333587158531489859211268084164422251",
+            "16470663723473939739601217501478624726068461799539012562455639586886033078064",
+            "15672299304945968727435591100602007503785845873606917887638890765525875123857",
+            "21393538327627889838198844493522533627143658125568123117776524944297103649079",
+            "7688819203734248199049004650451546300187194458173935784579101984183800649342",
+        ],
+        vec![
+            "6609663518412297884695057080546416278366560290439222127471462938252865438638",
+            "3476303650597281786976907813110835564442121684386467570637538230409080744769",
+            "20633582549754495054832414039299188930065286005370053173386561254823483851717",
+            "18067076834611402459142612082327591538480657933568191619109271502102126814407",
+            "157209609820117793892254328219308970217366919934739036156851508233236414461",
+        ],
+        vec![
+            "1848396116513925340973398423998379465460554039715233953825786874352442451413",
+            "188642786730195655565401615804782553245486295156304142809552609651873793325",
+            "540089254487190924787439362270708251103955915909358626209177199653451469720",
+            "12796274768956950589847157187031845061404119522843128177103898080653493269942",
+            "1785666356337148874573621868025910291826158842346617719666738769156993598966",
+        ],
+        vec![
+            "20649919247042517528354490854561347316237285929352042389729444382153378749538",
+            "9568390566108569727471722677925269460696523515877621230569682954652430518787",
+            "8590683334740232786825518158771304803451657249486419816607179533515442407283",
+            "9321198393538172042803957409292145345834077448228642847843261373640165958582",
+            "3651905214805616378360839954289447530035139753215923648216350128870943481828",
+        ],
+        vec![
+            "1324345422558073117779462079218851558068746895262914344818945294328678893083",
+            "6666363895154434021620869731925915051086919707989020578203743660669796175288",
+            "9850757893972463103359995012900314323213006625927501272997539940766979170137",
+            "10214293226445704940138790188111862069675188797488928722469679760666574484266",
+            "16862124085118494177559484642483513597285992646267864845521573612482278871023",
+        ],
+        vec![
+            "9172340118369291059693735314505606817316211450324955429310200429408035954801",
+            "1968992755714619414656181112336357119271845800144345284299978250769356388249",
+            "17192498940296212027365280042755701662136570107224000496521552617655679821443",
+            "10063385968535643122430064779260670089120686456635080613693015398478175344193",
+            "20101961459945738562625328882763768836449780661345042148985756598106706734632",
+        ],
+        vec![
+            "12704305975772252539534386080950631076046431529894091327218544197389260775334",
+            "3008242816727585639441748210631464697850194693570485141354082562181236010097",
+            "7797705698071555811456747812384107102104184812467361013142453143842134807658",
+            "19323240331433203844038522035479659453946066968727795017745942269828428751105",
+            "1698137797127320576751729191866734754105401103859852376273763815257758421427",
+        ],
+        vec![
+            "17656850887825900397821271738817912328294075224643535784810269137125067875996",
+            "20755447986835730799031196367323817361150623932048563112034040627213597261325",
+            "6221130271964372280138992636208062417325313096379273438539556580491430711297",
+            "11042709376363248213366896208587241517252100440844476816212498352999929578287",
+            "987361321094619571176752720390429919723900732295551211263814448408232028205",
+        ],
+        vec![
+            "15077982986114392945859048373768437818569856001604485167476360943078774679228",
+            "6278894644165961404521866714059972066255652200107181684047812674333675794053",
+            "2649747800006903047073625320829560088088800522557851927539477888486006072675",
+            "2636278052351769676017824297717609512488651850924228608531372135635042762078",
+            "816232991472315395984098922575496846552245086608787214581606973359616326446",
+        ],
+        vec![
+            "14372687274434205592004117128588852491871014819273428668840779210928924573820",
+            "7351401720390274950322621121981079413650308506660552567079785209176949174210",
+            "10275293929161727274572318228903710245677747557851999483919909420098936352013",
+            "14869686444606195206734119702227763209172799407142930791211203702643805341518",
+            "937617196362766626935279232045712623531859540210120280128165029613358941709",
+        ],
+        vec![
+            "21331527351771920568751070369057714014285398281585036009305608379072813379081",
+            "4305436470381074948146072259605215282335211631970525440530773004228212378618",
+            "5894273721571292784412707230481346442881109207745969297947253583203466014760",
+            "6512250441044591603946512492071171861967500633638753443182294740883123881284",
+            "20863871952569294813936866452848141274047362082838805921071316386912981651979",
+        ],
+        vec![
+            "18788566662709810970880679984141390717017951403407913908833463086244783373013",
+            "7784927597396249543149135503684024377171301321636804832597181795981969626201",
+            "13818519831569592521516488188127966399245767953522268350556654747680372036664",
+            "10515208647860053151690062640705322684876580250632027862984821874343071549235",
+            "797604926079325807488629085866693514275115789253871397971708541758696512985",
+        ],
+        vec![
+            "8741784289526985522570446847275649913333939699807282742190607491216732972386",
+            "20966712704043418981047968701828936463778140093909973286855779694780086635828",
+            "11359697297415630167449040380538108774924967116147664240213257348125754475868",
+            "8070907838094569287067982462230761680706116783989613960066342967469297961118",
+            "1868550288036217638713133945402464194193242298015503906068429633793800456561",
+        ],
+        vec![
+            "198709459347510170000840600179608479136663571567208109852828485236018304733",
+            "1601154135701845545733926027872374554514541574822026314034696802419388627041",
+            "4363994778006302991481199477873248350039564117453810275561422974475581105893",
+            "773054378219982710451611471050404495804413666789496412742983455527754059148",
+            "5209426340109575519362014651321132459061755868557415513439993327176584352934",
+        ],
+        vec![
+            "16124961412020675839394907565568143713078242978522632778625312854364651991011",
+            "20812496670075231301471694692369245988519082317145989298573032859079075730004",
+            "3312489967581906638742585802390894285073229440039144559060030129184388053832",
+            "2967475373447822846542676378804990140732835322255774209561143670843223463335",
+            "19744585401442299381952694102570931935735276268739851233412754166721728873141",
+        ],
+        vec![
+            "20026293345566344685499234599699178313754630774489046573312844763673073616936",
+            "2611303659034102517884318354550433047021831422518437228002960700934925644951",
+            "6230291832603218406134986471162106408091661326026848531605999413028246206577",
+            "9126162046556730019959291776456914453189657463686708035601186672661595109020",
+            "18827736146609035067773173111376739253733288103277133456626928961785293662143",
+        ],
+        vec![
+            "2328703958261360872869074208611873245571971231035163763965210852182760438390",
+            "13796410059666172174899788866809560044715551934510722965495280798363043241416",
+            "1593663256684781552813616365605526150610454082601584196604084376715746899324",
+            "1565874145189898288764434737762721576951043839540107044892767693968417810945",
+            "8709849304563896945461696717753976956465219721409993781555147204068634555572",
+        ],
+        vec![
+            "2994256803561260177499267243802460581941891553208150783951937342406846377191",
+            "10452746656507347152042187616753027475507881362159944564077673851918869542550",
+            "20130580998875572619695450234900655050996104101008767761546912649074040426200",
+            "18926933358104691474037431437316089682088433006245222723356764715400831411716",
+            "3783551594057498940671877156409957274854990650480535806320220142873170375307",
+        ],
+        vec![
+            "7919031943604095374667473717154511882451510130166237539514111182596247372692",
+            "14518552587329209714850286012780632801030157943402419401997576700600952906519",
+            "4770764028263701271241862755569969531641408032906982530346384375773459918490",
+            "10866502826034731763529371496585294375373238783964914673031891984092997621879",
+            "4234148117462322266937279401468367908013627589417699250592523530383852950379",
+        ],
+        vec![
+            "10747942066055887965185603234524367638106812660210378090215017248140719240336",
+            "2587411532912868255102795810490361867789634574022411742057853375399270197531",
+            "17350061113113681344498080520518808976916692173267298878258722510332360424059",
+            "16490282364669098969805528215926442920328903121380947471680517193373377657129",
+            "9274691782659584680377375192682066090127280485689527337429804211265749864190",
+        ],
+        vec![
+            "7630965482352419767782717986075793694403609453648729580916814032587325374653",
+            "9483872310024003776681196467845329825094379763716541754956796450187787638623",
+            "12182966986735661215639970080491757244218854808156498220088212871061979325833",
+            "1853790963611367149183440339188924598268644281518961106776656221408171642714",
+            "17425077915972423995335545370701802959607559878032910147159424242864219303096",
+        ],
+        vec![
+            "14571075346526399549826264845894977639678567831720652860528738036970272895919",
+            "5627701855249158721927849603102149698163511782011562166637339712383551336091",
+            "3620805686755372260289125555061886982808014642356719556961142525373021656729",
+            "11556995641752009899073583627136467840237831247117281278719511600076965602980",
+            "18960242154096055221658318882298412299294886669455506299567210308762501113202",
+        ],
+    ];
+
+    let mds_string: Vec<Vec<&'static str>> = vec![
+        vec![
+            "16789463359527776692258765063233607350971630674230623383979223533600140787105",
+            "17179611066821656668705197789232102741366879862607190942874777813024566441829",
+            "18653277315487164762584377009009109585010878033606596417396490909822722930739",
+            "7373070639853668650581790286343199505413793790160702463077019294817051722180",
+            "4823864393442908763804841692709014014130031798360007432734996408628916373879",
+        ],
+        vec![
+            "19196309854577132760746782449135315310664418272926255500908899397538686486585",
+            "18123132816088485879885148351452823314623055244145916622592591084094232513914",
+            "18436594886553181913092702411547018228276047601279727265790147051821171174455",
+            "15167500404313194506503404655898040457721633218143681920692711693000769735187",
+            "9437986152015460505719924283993842205604222075968464846270136901243896809793",
+        ],
+        vec![
+            "21445376105821232747280055223032050399373725161014449207033808524504027971613",
+            "49684738714301073369749035791061182456037935161360748355432247732088942674",
+            "9826409059947591908303145327284336313371973037536805760095514429930589897515",
+            "8494798325496773219358794086647759478982958403252584257436898618394561204124",
+            "21251937175072447337747316555423152807036003235223125066270735279039060889959",
+        ],
+        vec![
+            "5539100337780919206842837176908516952801756637410959104376645017856664270896",
+            "6297628909516159190915174165284309160976659474973668336571577778869958189934",
+            "12792263637464508665199868777503118105486490400267592501708855807938962470650",
+            "17254685306085558791725544672172906900581495686070720065168939143671412445514",
+            "3590396502942934679818900672232030233017710909687947858184099000783280809247",
+        ],
+        vec![
+            "19055249881366445073616526879263250763682650596233071589085239500077496415637",
+            "7367697936402141224946246030743627391716576575953707640061577218995381577033",
+            "1322791522030759131093883057746095061798181102708855007233180025036972924046",
+            "20456741074925985565499300081580917471340328842103779922028754640077047587707",
+            "9059147312071680695674575245237100802111605600478121517359780850134328696420",
+        ],
+    ];
+
+    (
+        mat_from_str_mat(ark_string).unwrap(),
+        mat_from_str_mat(mds_string).unwrap(),
+    )
+}
+
+pub fn poseidon_config<F: PrimeField>() -> PoseidonConfig<F> {
+    let full_rounds: usize = 8;
+    let partial_rounds: usize = 60;
+    let alpha = 5;
+    let rate = 4;
+    let (ark, mds) = constants::<F>();
+
+    PoseidonConfig::new(full_rounds, partial_rounds, alpha, mds, ark, rate, 1)
+}
+
+#[cfg(test)]
+pub mod tests {
+    use super::*;
+    use ark_crypto_primitives::sponge::{poseidon::PoseidonSponge, CryptographicSponge};
+    use std::str::FromStr;
+
+    // Test with value taken from https://github.com/iden3/circomlibjs/blob/43cc582b100fc3459cf78d903a6f538e5d7f38ee/test/poseidon.js#L32
+    #[test]
+    fn check_against_circom_poseidon() {
+        let pos_conf = poseidon_config::<Fr>();
+        let mut poseidon_sponge: PoseidonSponge<Fr> = CryptographicSponge::new(&pos_conf);
+        let v: Vec<Fr> = vec!["1", "2", "3", "4"]
+            .into_iter()
+            .map(|x| Fr::from_str(x).unwrap())
+            .collect();
+        poseidon_sponge.absorb(&v);
+        poseidon_sponge.squeeze_field_elements::<Fr>(1);
+        assert!(
+            poseidon_sponge.state[0]
+                == Fr::from_str(
+                    "18821383157269793795438455681495246036402687001665670618754263018637548127333"
+                )
+                .unwrap()
+        );
+    }
+}

folding-schemes/src/transcript/poseidon/grumpkin.rs

@@ -0,0 +1,519 @@
+use crate::utils::vec::mat_from_str_mat;
+use ark_crypto_primitives::sponge::poseidon::PoseidonConfig;
+use ark_ff::{BigInteger, PrimeField};
+use ark_grumpkin::Fr;
+
+// Poseidon constants for Grumpkin curve as generated by
+// https://extgit.iaik.tugraz.at/krypto/hadeshash/-/blob/master/code/generate_params_poseidon.sage
+// generated with `sage generate_params_poseidon.sage 1 0 254 5 5 128 0x30644e72e131a029b85045b68181585d97816a916871ca8d3c208c16d87cfd47`
+pub(crate) fn constants<F: PrimeField>() -> (Vec<Vec<F>>, Vec<Vec<F>>) {
+    assert_eq!(
+        F::MODULUS.to_bytes_be(),
+        Fr::MODULUS.to_bytes_be(),
+        "The prime field must be isomorphic to Grumpkin's scalar field."
+    );
+
+    let ark_string: Vec<Vec<&'static str>> = vec![
+        vec![
+            "1302239555262414373374689806120238567451910671048356388761256768881091977026",
+            "20142103518641694351566464807000085009490728625878244431319536321251441942827",
+            "1848725460637284900919684211664029868073589532499995561090226899069857587691",
+            "5361307675224911135631066913685411082885932664964555034697699114860673882233",
+            "4473122481411436076578491888827463154326954640259385462117207234024651916467",
+        ],
+        vec![
+            "4533665742580623759631463707292502457303336027513946514723234383907861855246",
+            "18472882194054405184784552208176156100293313194921931757669044776860165723544",
+            "13757170890682053314816924771913668733053950646218560510866549037895645369564",
+            "15806422895261109419898318282501524707572435539997217203708101166323921748108",
+            "4766645625917486367271392557885239315740765821810232842247605581184299843494",
+        ],
+        vec![
+            "20755837067826525663784916442484716524757386712340218661351088127992212106824",
+            "6931011592102208154123444754548015589930397906195731845090389578241299211369",
+            "12872548123049027593925484150531538114342387406107964171770931024714006292181",
+            "19021338859263582291104968524901108269784177222899573306303774240117233382398",
+            "17624901113592432267211565106957770530605134617091943075252981153737028641716",
+        ],
+        vec![
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+            "107881145622341766195797697180398630966146686121294922902505492300376581701",
+            "17382945389561659460319815947516238642247658799110915338488621060102080047539",
+            "6328410082901692275666073849891663711371196642536900744578688459148095541551",
+            "5499749772383208465048180320867175193567502820575626739181055378423718868039",
+        ],
+        vec![
+            "3204525958061714990518441380431615353302696462736414225170035013526539981058",
+            "9376764803231999304238028037321448743861331501170058694965687575771463991453",
+            "5237849715714294820293831443727094658731366644369324164620835602118042346870",
+            "9239495575265257427822371973110544704770778444170109638878775549832354515494",
+            "7880425335496839386103630104455216237845620064265863480289309995594489485862",
+        ],
+        vec![
+            "10207842905317613746951982575056147000309206576502209186044867806033750144086",
+            "18745940987111747211061984736915990760500362627666000109808520301610434121504",
+            "13079189067909178317435686398656108053236860538441664302331350911412055820915",
+            "17067019205640552338021677449560599552840430767893036009592844143843557994424",
+            "13016918696846808514331427814150121751322377780531194517695510258675820732909",
+        ],
+        vec![
+            "21489797151464601775632825035710818267963200552334448174801229855857128663775",
+            "4934888620039211187671244780535801635284292253603825321579664975935835597948",
+            "16602483151127971722313642909560175097035441303962316845857049824454750801486",
+            "18641807385681192758876550180654220921365911502760326609634613337194020209523",
+            "16925927598302001873588652395266396371351036692514405706361568743594010741532",
+        ],
+        vec![
+            "14486092351755954790229242015868583215610453135748933043922672728536022197704",
+            "20778174490546328244258656158430202863648695790985677923372400582930757310418",
+            "16631748808740506031147919524411887259543162754298984304792262445311999057100",
+            "8786033961094907554640397512269007851362576125025617120625202376510922518234",
+            "17544380304193526481389764226846912653688724640722680092503328991834898226758",
+        ],
+        vec![
+            "2040898632628667450504825873427940388725164943108463598147204658638706060670",
+            "11266666625440259700781586210036861414729690333809733995405037631962446956155",
+            "13460535253234440686890388506029233180141711540662215480601224102735227984512",
+            "12636160103920207730958920610195885429915333096038982786347009836030899638483",
+            "6383739819588725781339075155063162102005724252294667119009147433389509274581",
+        ],
+        vec![
+            "3615415542286145222801248937923769406863619912085574834683457411852358326065",
+            "21484290530292488749479723708756361451822492014684193820961010478972790190053",
+            "9248035906677166766115225191221800851151572573012446205259169609929901480989",
+            "8431379073917134790658087470500967107593432305778554481716806377637231835193",
+            "18827891457467202141300330875540352074826671738513349870408037755815876855513",
+        ],
+        vec![
+            "12257405118592396506493659207395476994164449510609233957374912486666332869265",
+            "21226225959854014471324834236076174784480392729934587257035277409456041350054",
+            "20286225677735463160252689903334639277764329300633051406303811016606383879277",
+            "10279964694039468933161973601611338291797534036555810740994417216892754405764",
+            "19505712206874315617549350996181917781225952142243549491268122179248885644216",
+        ],
+        vec![
+            "20038967257440016050053835036217347375509692369869123828333050890335921590418",
+            "8523701096675837950983704311311321332315273369885750549632214593466999278559",
+            "3555295004833619124925912036253452620323771244275346931178469823606125124449",
+            "13784324444186967604165178202741636059533026352459109519158961779055205702963",
+            "1990731083029044014598831932498759644447254974253506030415271492596479699841",
+        ],
+        vec![
+            "17578439096922405381448775550808806383371194977564690298325676455726616889023",
+            "8482864734928111222662141206829539770993499916626142030432142812087814950739",
+            "14427490653680209977995871526275577094021456563142468863069496015597239256954",
+            "2886468118550034063520843296160011102344999339741412744323416088047748803031",
+            "14572134157746751340989844304520965763735898987561573587755290732664963516241",
+        ],
+        vec![
+            "2012188439304315533653966624269826479632693436228005577812006502639655900430",
+            "15532739752336769387812617799347097353090822643182498581522593843370142001319",
+            "17529534703270713594321571895249323223685495976329442080636746684463806784661",
+            "21031534080894610876355523771107722102837183493228844664680261397823519630070",
+            "19436577385855087170357474710455765498240805774464631546842557209664504220669",
+        ],
+        vec![
+            "12949787909663269259076764555571843769659200695381876462828212199650601988661",
+            "19840887115057106171541062849618907727997426564328068613363838385495062694080",
+            "11070881582551838082405230404504983313196662759570037918719480824477325348619",
+            "21121613659252535934567682773727354352249754361426783252117493686550694641841",
+            "13853384193563682327636191280511053847941124197231804085111291238364825228055",
+        ],
+        vec![
+            "16534768562387351990889034654990847617621658362728970493903460833326016536279",
+            "16737626808770332056817306496249435585235512996421417871213979019489327200794",
+            "4955268430584609526967650698915505429623726703834197733312701363048061722841",
+            "9263608332778781442606069584033040773652544643298512410910187831068155040930",
+            "14054336891450573864216276098381163567665599861126245131928674022194523625593",
+        ],
+        vec![
+            "21801176434550838737352604795544877125500872320940890751193577820117534718405",
+            "9079447684660962172190409320608785803288621417039371710407887510606175315445",
+            "8133910245538672265863502046036258662943074913843998565031782462595186859432",
+            "9027563286570496827301683766505646642464515894808680909417176262524667994607",
+            "17813887182413861707818763379048369988110623133775484154852873751145361117513",
+        ],
+        vec![
+            "8273529887305322812400486795371424723512754022502284544817751808933420020056",
+            "6193911737909565720690901657318625169120108300025594301424772109607790217525",
+            "373596750078768704743702896865778923677151831044315726342014805308595338731",
+            "15663337206542612442532133239045611552243679621992911236973616735274383423741",
+            "17476521689840597137182775014002918999849301054751890629300658136899537687697",
+        ],
+        vec![
+            "10121895709985849082387712269452727249466555335022614339144618832725920412034",
+            "11353776892399275074635875354785293934117783200085751402421982281545221342465",
+            "15469593317594462447141531241838454642357125438273561690975191399478697119085",
+            "17865888279934933809429394512960214291450883690852180796520429879983293128990",
+            "6274350675415573512803325527372997466731705110595230630336129852455603760381",
+        ],
+        vec![
+            "9515352341824235667448011992857822921915261676679964918079021159851642025303",
+            "477707918786271386693553202815432152082461724031549221576128656997166664476",
+            "11386216724751845172421028486683728466296560704582636027450491190849829017239",
+            "4868197961579949504657937771026878598470017307487284109130104378522476324759",
+            "7991796353928888821416988025327754752177012963861843782973600632603733430518",
+        ],
+        vec![
+            "11333649983259548605035153795104287405127917441832737799837601790907346338950",
+            "3253711061374706142428324171829325260316225494115007268262947478002641026402",
+            "5496514984404605000691982099037699217882902140738102410212416632722084066284",
+            "6974913403648934971601590531570930173199234097058361874070921020086428415758",
+            "5883566280233036595341911997921541009923447375421011739277658309528500897712",
+        ],
+        vec![
+            "21445567565181758135550457460741698101787978571665239784748669483459739751994",
+            "243826411958605269263143447048452095693190359309032214693902308098516987479",
+            "21154333990044972665175047861269029145893456380868567541001936195732856016776",
+            "3319183817985491659546270466674828377723765699200573232068916648375974981613",
+            "3073970873570833352097605152458525154296900481368706411115318768432378669842",
+        ],
+        vec![
+            "20483576083983106606340357456603738075578078878737741433492057427336395394207",
+            "18720024904290757089439759576658550350669656533688125048290648882155502317676",
+            "1642499300715381739293473205810772993318440465411115612594671091056540126965",
+            "19304118143010791587684818902506948075645331242883697200070316546112584129578",
+            "17514394941065568574615190205049601810984856925614240654769418757202361926933",
+        ],
+        vec![
+            "11556753834792658188438232905095955072130370253803724342392908382453645967403",
+            "6129219138206469959108774259486604720996391435645088561379200297574544675692",
+            "18072280082137011908300861638959080543066161505384020771128066003845703716201",
+            "17698719397344644673462975571660619385706341688261285732100232300374907025408",
+            "19711276008373408462398739099936823239389914489313560182281159321304186912571",
+        ],
+    ];
+
+    let mds_string: Vec<Vec<&'static str>> = vec![
+        vec![
+            "11040268765618966485743930331384449252540178255721603113765764162439951530662",
+            "14619397736929193730245228786408558236521630763386146399322813942010841864899",
+            "10667900877576512207318813047240865767100252874399171146942316173885571898103",
+            "12165316291228285262842448955655563528504835782461286041201951512387113326195",
+            "10396208898093391600689903392326434668878305652248452965403131377623408094066",
+        ],
+        vec![
+            "19503909329721711777979879761659766779862832905278244618068517524827486499103",
+            "4959388492818549747321625860510175535335795548729907524166782031582541039280",
+            "16115979899849295727011176917576445189620726075595230031659429359211848784926",
+            "505854154613852852989462660917429865956711080615787601025929677126127137972",
+            "3809388125781819260420235233525803721174258720871002958819149356974147520791",
+        ],
+        vec![
+            "16684302548808282795274602108101884787806448235075553242259501124382211853639",
+            "15761534168109871534581041602143280815389334970289855273694992235420618466756",
+            "11194351297025208548187494208359225900929561831849862863133416814929915734783",
+            "1892277486669848856135789846900228616904357145126282105455443798229090074187",
+            "2781765068911985355639433624785498046913019524724151023603546614690160030185",
+        ],
+        vec![
+            "12037519845045404407540321574767620698649052766728735733715255850418456502517",
+            "2732503219087414496659560236942305660362604072017478968909949641450059765139",
+            "6751856993585408160559297753599536526938230756668214257332833164872580357525",
+            "21154610483210081693552160119046341221136362570739966307225431519652159656367",
+            "6208150041573103146633376259286490046406285001830507663903329995399090412043",
+        ],
+        vec![
+            "18063113951004757412844021744032560391991074710825639164600470602537681012962",
+            "4309850927493714562265638576973404086579410809307210903617085917528289705963",
+            "17965146435760138739568881121411723561477417980023835001880054802493337747241",
+            "4834762967413709351083800837287853102040090485798752777075791579043757218092",
+            "18099176386979510370196738775718135350042677134310008561670476620955846754392",
+        ],
+    ];
+
+    (
+        mat_from_str_mat(ark_string).unwrap(),
+        mat_from_str_mat(mds_string).unwrap(),
+    )
+}
+
+pub fn poseidon_config<F: PrimeField>() -> PoseidonConfig<F> {
+    let full_rounds: usize = 8;
+    let partial_rounds: usize = 56;
+    let alpha = 5;
+    let rate = 4;
+    let (ark, mds) = constants::<F>();
+
+    PoseidonConfig::new(full_rounds, partial_rounds, alpha, mds, ark, rate, 1)
+}

folding-schemes/src/utils/espresso/sum_check/mod.rs

@@ -211,7 +211,7 @@ pub mod tests {
     use ark_poly::MultilinearExtension;
     use ark_std::test_rng;
 
-    use crate::transcript::poseidon::poseidon_test_config;
+    use crate::transcript::poseidon::poseidon_canonical_config;
     use crate::transcript::poseidon::PoseidonTranscript;
     use crate::transcript::Transcript;
     use crate::utils::sum_check::SumCheck;
@@ -224,7 +224,7 @@ pub mod tests {
         let mut rng = test_rng();
         let poly_mle = DenseMultilinearExtension::rand(5, &mut rng);
         let virtual_poly = VirtualPolynomial::new_from_mle(&Arc::new(poly_mle), Fr::ONE);
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
 
         // sum-check prove
         let mut poseidon_transcript_prove: PoseidonTranscript<Projective> =

folding-schemes/src/utils/vec.rs

@@ -119,6 +119,19 @@ pub fn mat_vec_mul_sparse(M: &SparseMatrix, z: &[F]) -> Result
     Ok(res)
 }
 
+pub fn mat_from_str_mat<F: PrimeField>(str_mat: Vec<Vec<&str>>) -> Result<Vec<Vec<F>>, Error> {
+    str_mat
+        .into_iter()
+        .map(|row| {
+            row.into_iter()
+                .map(|s| {
+                    F::from_str(s).map_err(|_| Error::Other("Invalid decimal string".to_string()))
+                })
+                .collect()
+        })
+        .collect()
+}
+
 pub fn hadamard<F: PrimeField>(a: &[F], b: &[F]) -> Result<Vec<F>, Error> {
     if a.len() != b.len() {
         return Err(Error::NotSameLength(

solidity-verifiers/src/verifiers/kzg.rs

@@ -90,7 +90,7 @@ mod tests {
     use folding_schemes::{
         commitment::{kzg::KZG, CommitmentScheme},
         transcript::{
-            poseidon::{poseidon_test_config, PoseidonTranscript},
+            poseidon::{poseidon_canonical_config, PoseidonTranscript},
             Transcript,
         },
     };
@@ -132,7 +132,7 @@ mod tests {
     #[test]
     fn kzg_verifier_accepts_and_rejects_proofs() {
         let mut rng = ark_std::rand::rngs::StdRng::seed_from_u64(test_rng().next_u64());
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
         let transcript_p = &mut PoseidonTranscript::<G1>::new(&poseidon_config);
         let transcript_v = &mut PoseidonTranscript::<G1>::new(&poseidon_config);
 

solidity-verifiers/src/verifiers/nova_cyclefold.rs

@@ -142,7 +142,7 @@ mod tests {
             get_cs_params_len, Nova, ProverParams,
         },
         frontend::FCircuit,
-        transcript::poseidon::poseidon_test_config,
+        transcript::poseidon::poseidon_canonical_config,
         Decider, Error, FoldingScheme,
     };
 
@@ -287,7 +287,7 @@ mod tests {
         KZGVerifierKey<Bn254>,
     ) {
         let mut rng = ark_std::test_rng();
-        let poseidon_config = poseidon_test_config::<Fr>();
+        let poseidon_config = poseidon_canonical_config::<Fr>();
         let f_circuit = FC::new(()).unwrap();
         let (cs_len, cf_cs_len) =
             get_cs_params_len::<G1, GVar, G2, GVar2, FC>(&poseidon_config, f_circuit).unwrap();