sonobe/folding-schemes/src/folding/hypernova/mod.rs
folding-schemes/src/folding/hypernova/mod.rsRaw
1/// Implements the scheme described in [HyperNova](https://eprint.iacr.org/2023/573.pdf)
2use ark_crypto_primitives::sponge::{poseidon::PoseidonConfig, Absorb};
3use ark_ec::{CurveGroup, Group};
4use ark_ff::{BigInteger, PrimeField};
5use ark_r1cs_std::{groups::GroupOpsBounds, prelude::CurveVar, ToConstraintFieldGadget};
6use ark_std::rand::RngCore;
7use ark_std::{One, Zero};
8use core::marker::PhantomData;
9use std::fmt::Debug;
10
11pub mod cccs;
12pub mod circuits;
13use circuits::AugmentedFCircuit;
14pub mod lcccs;
15pub mod nimfs;
16pub mod utils;
17use cccs::CCCS;
18use lcccs::LCCCS;
19use nimfs::NIMFS;
20
21use crate::commitment::CommitmentScheme;
22use crate::folding::circuits::{
23 cyclefold::{fold_cyclefold_circuit, CycleFoldCircuit},
24 CF2,
25};
26use crate::folding::nova::{
27 get_r1cs_from_cs, traits::NovaR1CS, CommittedInstance, PreprocessorParam,
28 Witness as NovaWitness,
29};
30use crate::frontend::FCircuit;
31use crate::utils::{get_cm_coordinates, pp_hash};
32use crate::Error;
33use crate::FoldingScheme;
34use crate::{
35 arith::{
36 ccs::CCS,
37 r1cs::{extract_w_x, R1CS},
38 },
39 transcript::{poseidon::PoseidonTranscript, Transcript},
40};
41
42/// Witness for the LCCCS & CCCS, containing the w vector, and the r_w used as randomness in the Pedersen commitment.
43#[derive(Debug, Clone, Eq, PartialEq)]
44pub struct Witness<F: PrimeField> {
45 pub w: Vec<F>,
46 pub r_w: F,
47}
48
49impl<F: PrimeField> Witness<F> {
50 pub fn new(w: Vec<F>) -> Self {
51 // note: at the current version, we don't use the blinding factors and we set them to 0
52 // always.
53 Self { w, r_w: F::zero() }
54 }
55 pub fn dummy(ccs: &CCS<F>) -> Self {
56 Witness::<F>::new(vec![F::zero(); ccs.n - ccs.l - 1])
57 }
58}
59
60#[derive(Debug, Clone)]
61pub struct ProverParams<C1, C2, CS1, CS2>
62where
63 C1: CurveGroup,
64 C2: CurveGroup,
65 CS1: CommitmentScheme<C1>,
66 CS2: CommitmentScheme<C2>,
67{
68 pub poseidon_config: PoseidonConfig<C1::ScalarField>,
69 pub cs_params: CS1::ProverParams,
70 pub cf_cs_params: CS2::ProverParams,
71 // if ccs is set, it will be used, if not, it will be computed at runtime
72 pub ccs: Option<CCS<C1::ScalarField>>,
73}
74
75#[derive(Debug, Clone)]
76pub struct VerifierParams<
77 C1: CurveGroup,
78 C2: CurveGroup,
79 CS1: CommitmentScheme<C1>,
80 CS2: CommitmentScheme<C2>,
81> {
82 pub poseidon_config: PoseidonConfig<C1::ScalarField>,
83 pub ccs: CCS<C1::ScalarField>,
84 pub cf_r1cs: R1CS<C2::ScalarField>,
85 pub cs_vp: CS1::VerifierParams,
86 pub cf_cs_vp: CS2::VerifierParams,
87}
88
89impl<C1, C2, CS1, CS2> VerifierParams<C1, C2, CS1, CS2>
90where
91 C1: CurveGroup,
92 C2: CurveGroup,
93 CS1: CommitmentScheme<C1>,
94 CS2: CommitmentScheme<C2>,
95{
96 /// returns the hash of the public parameters of HyperNova
97 pub fn pp_hash(&self) -> Result<C1::ScalarField, Error> {
98 pp_hash::<C1, C2, CS1, CS2>(
99 &self.ccs,
100 &self.cf_r1cs,
101 &self.cs_vp,
102 &self.cf_cs_vp,
103 &self.poseidon_config,
104 )
105 }
106}
107
108/// Implements HyperNova+CycleFold's IVC, described in
109/// [HyperNova](https://eprint.iacr.org/2023/573.pdf) and
110/// [CycleFold](https://eprint.iacr.org/2023/1192.pdf), following the FoldingScheme trait
111#[derive(Clone, Debug)]
112pub struct HyperNova<C1, GC1, C2, GC2, FC, CS1, CS2>
113where
114 C1: CurveGroup,
115 GC1: CurveVar<C1, CF2<C1>> + ToConstraintFieldGadget<CF2<C1>>,
116 C2: CurveGroup,
117 GC2: CurveVar<C2, CF2<C2>>,
118 FC: FCircuit<C1::ScalarField>,
119 CS1: CommitmentScheme<C1>,
120 CS2: CommitmentScheme<C2>,
121{
122 _gc1: PhantomData<GC1>,
123 _c2: PhantomData<C2>,
124 _gc2: PhantomData<GC2>,
125
126 /// CCS of the Augmented Function circuit
127 pub ccs: CCS<C1::ScalarField>,
128 /// R1CS of the CycleFold circuit
129 pub cf_r1cs: R1CS<C2::ScalarField>,
130 pub poseidon_config: PoseidonConfig<C1::ScalarField>,
131 /// CommitmentScheme::ProverParams over C1
132 pub cs_params: CS1::ProverParams,
133 /// CycleFold CommitmentScheme::ProverParams, over C2
134 pub cf_cs_params: CS2::ProverParams,
135 /// F circuit, the circuit that is being folded
136 pub F: FC,
137 /// public params hash
138 pub pp_hash: C1::ScalarField,
139 pub i: C1::ScalarField,
140 /// initial state
141 pub z_0: Vec<C1::ScalarField>,
142 /// current i-th state
143 pub z_i: Vec<C1::ScalarField>,
144 /// HyperNova instances
145 pub W_i: Witness<C1::ScalarField>,
146 pub U_i: LCCCS<C1>,
147 pub w_i: Witness<C1::ScalarField>,
148 pub u_i: CCCS<C1>,
149
150 /// CycleFold running instance
151 pub cf_W_i: NovaWitness<C2>,
152 pub cf_U_i: CommittedInstance<C2>,
153}
154
155impl<C1, GC1, C2, GC2, FC, CS1, CS2> FoldingScheme<C1, C2, FC>
156 for HyperNova<C1, GC1, C2, GC2, FC, CS1, CS2>
157where
158 C1: CurveGroup,
159 GC1: CurveVar<C1, CF2<C1>> + ToConstraintFieldGadget<CF2<C1>>,
160 C2: CurveGroup,
161 GC2: CurveVar<C2, CF2<C2>> + ToConstraintFieldGadget<CF2<C2>>,
162 FC: FCircuit<C1::ScalarField>,
163 CS1: CommitmentScheme<C1>,
164 CS2: CommitmentScheme<C2>,
165 <C1 as CurveGroup>::BaseField: PrimeField,
166 <C2 as CurveGroup>::BaseField: PrimeField,
167 <C1 as Group>::ScalarField: Absorb,
168 <C2 as Group>::ScalarField: Absorb,
169 C1: CurveGroup<BaseField = C2::ScalarField, ScalarField = C2::BaseField>,
170 for<'a> &'a GC1: GroupOpsBounds<'a, C1, GC1>,
171 for<'a> &'a GC2: GroupOpsBounds<'a, C2, GC2>,
172{
173 type PreprocessorParam = PreprocessorParam<C1, C2, FC, CS1, CS2>;
174 type ProverParam = ProverParams<C1, C2, CS1, CS2>;
175 type VerifierParam = VerifierParams<C1, C2, CS1, CS2>;
176 type RunningInstance = (LCCCS<C1>, Witness<C1::ScalarField>);
177 type IncomingInstance = (CCCS<C1>, Witness<C1::ScalarField>);
178 type CFInstance = (CommittedInstance<C2>, NovaWitness<C2>);
179
180 fn preprocess(
181 mut rng: impl RngCore,
182 prep_param: &Self::PreprocessorParam,
183 ) -> Result<(Self::ProverParam, Self::VerifierParam), Error> {
184 let augmented_f_circuit = AugmentedFCircuit::<C1, C2, GC2, FC>::empty(
185 &prep_param.poseidon_config,
186 prep_param.F.clone(),
187 None,
188 )?;
189 let ccs = augmented_f_circuit.ccs.clone();
190
191 let cf_circuit = CycleFoldCircuit::<C1, GC1>::empty();
192 let cf_r1cs = get_r1cs_from_cs::<C2::ScalarField>(cf_circuit)?;
193
194 // if cs params exist, use them, if not, generate new ones
195 let cs_pp: CS1::ProverParams;
196 let cs_vp: CS1::VerifierParams;
197 let cf_cs_pp: CS2::ProverParams;
198 let cf_cs_vp: CS2::VerifierParams;
199 if prep_param.cs_pp.is_some()
200 && prep_param.cf_cs_pp.is_some()
201 && prep_param.cs_vp.is_some()
202 && prep_param.cf_cs_vp.is_some()
203 {
204 cs_pp = prep_param.clone().cs_pp.unwrap();
205 cs_vp = prep_param.clone().cs_vp.unwrap();
206 cf_cs_pp = prep_param.clone().cf_cs_pp.unwrap();
207 cf_cs_vp = prep_param.clone().cf_cs_vp.unwrap();
208 } else {
209 (cs_pp, cs_vp) = CS1::setup(&mut rng, ccs.n - ccs.l - 1)?;
210 (cf_cs_pp, cf_cs_vp) = CS2::setup(&mut rng, cf_r1cs.A.n_cols - cf_r1cs.l - 1)?;
211 }
212
213 let pp = ProverParams::<C1, C2, CS1, CS2> {
214 poseidon_config: prep_param.poseidon_config.clone(),
215 cs_params: cs_pp.clone(),
216 cf_cs_params: cf_cs_pp.clone(),
217 ccs: Some(ccs.clone()),
218 };
219 let vp = VerifierParams::<C1, C2, CS1, CS2> {
220 poseidon_config: prep_param.poseidon_config.clone(),
221 ccs,
222 cf_r1cs,
223 cs_vp: cs_vp.clone(),
224 cf_cs_vp: cf_cs_vp.clone(),
225 };
226 Ok((pp, vp))
227 }
228
229 /// Initializes the HyperNova+CycleFold's IVC for the given parameters and initial state `z_0`.
230 fn init(
231 params: (Self::ProverParam, Self::VerifierParam),
232 F: FC,
233 z_0: Vec<C1::ScalarField>,
234 ) -> Result<Self, Error> {
235 let (pp, vp) = params;
236
237 // prepare the HyperNova's AugmentedFCircuit and CycleFold's circuits and obtain its CCS
238 // and R1CS respectively
239 let augmented_f_circuit = AugmentedFCircuit::<C1, C2, GC2, FC>::empty(
240 &pp.poseidon_config,
241 F.clone(),
242 pp.ccs.clone(),
243 )?;
244 let ccs = augmented_f_circuit.ccs.clone();
245
246 let cf_circuit = CycleFoldCircuit::<C1, GC1>::empty();
247 let cf_r1cs = get_r1cs_from_cs::<C2::ScalarField>(cf_circuit)?;
248
249 // compute the public params hash
250 let pp_hash = vp.pp_hash()?;
251
252 // setup the dummy instances
253 let W_dummy = Witness::<C1::ScalarField>::dummy(&ccs);
254 let U_dummy = LCCCS::<C1>::dummy(ccs.l, ccs.t, ccs.s);
255 let w_dummy = W_dummy.clone();
256 let mut u_dummy = CCCS::<C1>::dummy(ccs.l);
257 let (cf_W_dummy, cf_U_dummy): (NovaWitness<C2>, CommittedInstance<C2>) =
258 cf_r1cs.dummy_instance();
259 u_dummy.x = vec![
260 U_dummy.hash(
261 &pp.poseidon_config,
262 pp_hash,
263 C1::ScalarField::zero(),
264 z_0.clone(),
265 z_0.clone(),
266 )?,
267 cf_U_dummy.hash_cyclefold(&pp.poseidon_config, pp_hash)?,
268 ];
269
270 // W_dummy=W_0 is a 'dummy witness', all zeroes, but with the size corresponding to the
271 // R1CS that we're working with.
272 Ok(Self {
273 _gc1: PhantomData,
274 _c2: PhantomData,
275 _gc2: PhantomData,
276 ccs,
277 cf_r1cs,
278 poseidon_config: pp.poseidon_config.clone(),
279 cs_params: pp.cs_params.clone(),
280 cf_cs_params: pp.cf_cs_params.clone(),
281 F,
282 pp_hash,
283 i: C1::ScalarField::zero(),
284 z_0: z_0.clone(),
285 z_i: z_0,
286 W_i: W_dummy,
287 U_i: U_dummy,
288 w_i: w_dummy,
289 u_i: u_dummy,
290 // cyclefold running instance
291 cf_W_i: cf_W_dummy,
292 cf_U_i: cf_U_dummy,
293 })
294 }
295
296 /// Implements IVC.P of HyperNova+CycleFold
297 fn prove_step(
298 &mut self,
299 mut rng: impl RngCore,
300 external_inputs: Vec<C1::ScalarField>,
301 ) -> Result<(), Error> {
302 let augmented_f_circuit: AugmentedFCircuit<C1, C2, GC2, FC>;
303
304 if self.z_i.len() != self.F.state_len() {
305 return Err(Error::NotSameLength(
306 "z_i.len()".to_string(),
307 self.z_i.len(),
308 "F.state_len()".to_string(),
309 self.F.state_len(),
310 ));
311 }
312 if external_inputs.len() != self.F.external_inputs_len() {
313 return Err(Error::NotSameLength(
314 "F.external_inputs_len()".to_string(),
315 self.F.external_inputs_len(),
316 "external_inputs.len()".to_string(),
317 external_inputs.len(),
318 ));
319 }
320
321 if self.i > C1::ScalarField::from_le_bytes_mod_order(&usize::MAX.to_le_bytes()) {
322 return Err(Error::MaxStep);
323 }
324
325 let mut i_bytes: [u8; 8] = [0; 8];
326 i_bytes.copy_from_slice(&self.i.into_bigint().to_bytes_le()[..8]);
327 let i_usize: usize = usize::from_le_bytes(i_bytes);
328
329 let z_i1 = self
330 .F
331 .step_native(i_usize, self.z_i.clone(), external_inputs.clone())?;
332
333 // u_{i+1}.x[1] = H(cf_U_{i+1})
334 let cf_u_i1_x: C1::ScalarField;
335 let (U_i1, W_i1);
336
337 if self.i == C1::ScalarField::zero() {
338 W_i1 = Witness::<C1::ScalarField>::dummy(&self.ccs);
339 U_i1 = LCCCS::dummy(self.ccs.l, self.ccs.t, self.ccs.s);
340
341 let u_i1_x = U_i1.hash(
342 &self.poseidon_config,
343 self.pp_hash,
344 C1::ScalarField::one(),
345 self.z_0.clone(),
346 z_i1.clone(),
347 )?;
348
349 // hash the initial (dummy) CycleFold instance, which is used as the 2nd public
350 // input in the AugmentedFCircuit
351 cf_u_i1_x = self
352 .cf_U_i
353 .hash_cyclefold(&self.poseidon_config, self.pp_hash)?;
354
355 augmented_f_circuit = AugmentedFCircuit::<C1, C2, GC2, FC> {
356 _c2: PhantomData,
357 _gc2: PhantomData,
358 poseidon_config: self.poseidon_config.clone(),
359 ccs: self.ccs.clone(),
360 pp_hash: Some(self.pp_hash),
361 i: Some(C1::ScalarField::zero()),
362 i_usize: Some(0),
363 z_0: Some(self.z_0.clone()),
364 z_i: Some(self.z_i.clone()),
365 external_inputs: Some(external_inputs.clone()),
366 u_i_C: Some(self.u_i.C),
367 U_i: Some(self.U_i.clone()),
368 U_i1_C: Some(U_i1.C),
369 F: self.F.clone(),
370 x: Some(u_i1_x),
371 nimfs_proof: None,
372
373 // cyclefold values
374 cf_u_i_cmW: None,
375 cf_U_i: None,
376 cf_x: Some(cf_u_i1_x),
377 cf_cmT: None,
378 };
379 } else {
380 let mut transcript_p: PoseidonTranscript<C1> =
381 PoseidonTranscript::<C1>::new(&self.poseidon_config);
382 transcript_p.absorb(&self.pp_hash);
383 let (rho_bits, nimfs_proof);
384 (nimfs_proof, U_i1, W_i1, rho_bits) = NIMFS::<C1, PoseidonTranscript<C1>>::prove(
385 &mut transcript_p,
386 &self.ccs,
387 &[self.U_i.clone()],
388 &[self.u_i.clone()],
389 &[self.W_i.clone()],
390 &[self.w_i.clone()],
391 )?;
392
393 // sanity check: check the folded instance relation
394 #[cfg(test)]
395 U_i1.check_relation(&self.ccs, &W_i1)?;
396
397 let u_i1_x = U_i1.hash(
398 &self.poseidon_config,
399 self.pp_hash,
400 self.i + C1::ScalarField::one(),
401 self.z_0.clone(),
402 z_i1.clone(),
403 )?;
404
405 let rho_Fq = C2::ScalarField::from_bigint(BigInteger::from_bits_le(&rho_bits))
406 .ok_or(Error::OutOfBounds)?;
407 // CycleFold part:
408 // get the vector used as public inputs 'x' in the CycleFold circuit
409 // cyclefold circuit for cmW
410 let cf_u_i_x = [
411 vec![rho_Fq],
412 get_cm_coordinates(&self.U_i.C),
413 get_cm_coordinates(&self.u_i.C),
414 get_cm_coordinates(&U_i1.C),
415 ]
416 .concat();
417
418 let cf_circuit = CycleFoldCircuit::<C1, GC1> {
419 _gc: PhantomData,
420 r_bits: Some(rho_bits.clone()),
421 p1: Some(self.U_i.clone().C),
422 p2: Some(self.u_i.clone().C),
423 x: Some(cf_u_i_x.clone()),
424 };
425
426 let (_cf_w_i, cf_u_i, cf_W_i1, cf_U_i1, cf_cmT, _) =
427 fold_cyclefold_circuit::<C1, GC1, C2, GC2, FC, CS1, CS2>(
428 &self.poseidon_config,
429 self.cf_r1cs.clone(),
430 self.cf_cs_params.clone(),
431 self.pp_hash,
432 self.cf_W_i.clone(), // CycleFold running instance witness
433 self.cf_U_i.clone(), // CycleFold running instance
434 cf_u_i_x,
435 cf_circuit,
436 )?;
437
438 cf_u_i1_x = cf_U_i1.hash_cyclefold(&self.poseidon_config, self.pp_hash)?;
439
440 augmented_f_circuit = AugmentedFCircuit::<C1, C2, GC2, FC> {
441 _c2: PhantomData,
442 _gc2: PhantomData,
443 poseidon_config: self.poseidon_config.clone(),
444 ccs: self.ccs.clone(),
445 pp_hash: Some(self.pp_hash),
446 i: Some(self.i),
447 i_usize: Some(i_usize),
448 z_0: Some(self.z_0.clone()),
449 z_i: Some(self.z_i.clone()),
450 external_inputs: Some(external_inputs),
451 u_i_C: Some(self.u_i.C),
452 U_i: Some(self.U_i.clone()),
453 U_i1_C: Some(U_i1.C),
454 F: self.F.clone(),
455 x: Some(u_i1_x),
456 nimfs_proof: Some(nimfs_proof),
457
458 // cyclefold values
459 cf_u_i_cmW: Some(cf_u_i.cmW),
460 cf_U_i: Some(self.cf_U_i.clone()),
461 cf_x: Some(cf_u_i1_x),
462 cf_cmT: Some(cf_cmT),
463 };
464
465 // assign the next round instances
466 self.cf_W_i = cf_W_i1;
467 self.cf_U_i = cf_U_i1;
468 }
469
470 let (cs, _) = augmented_f_circuit.compute_cs_ccs()?;
471
472 #[cfg(test)]
473 assert!(cs.is_satisfied()?);
474
475 let (r1cs_w_i1, r1cs_x_i1) = extract_w_x::<C1::ScalarField>(&cs); // includes 1 and public inputs
476
477 let r1cs_z = [
478 vec![C1::ScalarField::one()],
479 r1cs_x_i1.clone(),
480 r1cs_w_i1.clone(),
481 ]
482 .concat();
483 // compute committed instances, w_{i+1}, u_{i+1}, which will be used as w_i, u_i, so we
484 // assign them directly to w_i, u_i.
485 let (u_i, w_i) = self
486 .ccs
487 .to_cccs::<_, C1, CS1>(&mut rng, &self.cs_params, &r1cs_z)?;
488 self.u_i = u_i.clone();
489 self.w_i = w_i.clone();
490
491 // set values for next iteration
492 self.i += C1::ScalarField::one();
493 // assign z_{i+1} into z_i
494 self.z_i = z_i1.clone();
495 self.U_i = U_i1.clone();
496 self.W_i = W_i1.clone();
497
498 #[cfg(test)]
499 {
500 // check the new LCCCS instance relation
501 self.U_i.check_relation(&self.ccs, &self.W_i)?;
502 // check the new CCCS instance relation
503 self.u_i.check_relation(&self.ccs, &self.w_i)?;
504 }
505
506 Ok(())
507 }
508
509 fn state(&self) -> Vec<C1::ScalarField> {
510 self.z_i.clone()
511 }
512
513 fn instances(
514 &self,
515 ) -> (
516 Self::RunningInstance,
517 Self::IncomingInstance,
518 Self::CFInstance,
519 ) {
520 (
521 (self.U_i.clone(), self.W_i.clone()),
522 (self.u_i.clone(), self.w_i.clone()),
523 (self.cf_U_i.clone(), self.cf_W_i.clone()),
524 )
525 }
526
527 /// Implements IVC.V of HyperNova+CycleFold. Notice that this method does not include the
528 /// commitments verification, which is done in the Decider.
529 fn verify(
530 vp: Self::VerifierParam,
531 z_0: Vec<C1::ScalarField>, // initial state
532 z_i: Vec<C1::ScalarField>, // last state
533 num_steps: C1::ScalarField,
534 running_instance: Self::RunningInstance,
535 incoming_instance: Self::IncomingInstance,
536 cyclefold_instance: Self::CFInstance,
537 ) -> Result<(), Error> {
538 if num_steps == C1::ScalarField::zero() {
539 if z_0 != z_i {
540 return Err(Error::IVCVerificationFail);
541 }
542 return Ok(());
543 }
544
545 let (U_i, W_i) = running_instance;
546 let (u_i, w_i) = incoming_instance;
547 let (cf_U_i, cf_W_i) = cyclefold_instance;
548 if u_i.x.len() != 2 || U_i.x.len() != 2 {
549 return Err(Error::IVCVerificationFail);
550 }
551
552 let pp_hash = vp.pp_hash()?;
553
554 // check that u_i's output points to the running instance
555 // u_i.X[0] == H(i, z_0, z_i, U_i)
556 let expected_u_i_x = U_i.hash(&vp.poseidon_config, pp_hash, num_steps, z_0, z_i.clone())?;
557 if expected_u_i_x != u_i.x[0] {
558 return Err(Error::IVCVerificationFail);
559 }
560 // u_i.X[1] == H(cf_U_i)
561 let expected_cf_u_i_x = cf_U_i.hash_cyclefold(&vp.poseidon_config, pp_hash)?;
562 if expected_cf_u_i_x != u_i.x[1] {
563 return Err(Error::IVCVerificationFail);
564 }
565
566 // check LCCCS satisfiability
567 U_i.check_relation(&vp.ccs, &W_i)?;
568 // check CCCS satisfiability
569 u_i.check_relation(&vp.ccs, &w_i)?;
570
571 // check CycleFold's RelaxedR1CS satisfiability
572 vp.cf_r1cs
573 .check_relaxed_instance_relation(&cf_W_i, &cf_U_i)?;
574
575 Ok(())
576 }
577}
578
579#[cfg(test)]
580mod tests {
581 use crate::commitment::kzg::KZG;
582 use ark_bn254::{constraints::GVar, Bn254, Fr, G1Projective as Projective};
583 use ark_grumpkin::{constraints::GVar as GVar2, Projective as Projective2};
584
585 use super::*;
586 use crate::commitment::pedersen::Pedersen;
587 use crate::frontend::tests::CubicFCircuit;
588 use crate::transcript::poseidon::poseidon_canonical_config;
589
590 #[test]
591 pub fn test_ivc() {
592 let poseidon_config = poseidon_canonical_config::<Fr>();
593
594 let F_circuit = CubicFCircuit::<Fr>::new(()).unwrap();
595
596 // run the test using Pedersen commitments on both sides of the curve cycle
597 test_ivc_opt::<Pedersen<Projective>, Pedersen<Projective2>>(
598 poseidon_config.clone(),
599 F_circuit,
600 );
601 // run the test using KZG for the commitments on the main curve, and Pedersen for the
602 // commitments on the secondary curve
603 test_ivc_opt::<KZG<Bn254>, Pedersen<Projective2>>(poseidon_config, F_circuit);
604 }
605
606 // test_ivc allowing to choose the CommitmentSchemes
607 fn test_ivc_opt<CS1: CommitmentScheme<Projective>, CS2: CommitmentScheme<Projective2>>(
608 poseidon_config: PoseidonConfig<Fr>,
609 F_circuit: CubicFCircuit<Fr>,
610 ) {
611 let mut rng = ark_std::test_rng();
612
613 type HN<CS1, CS2> =
614 HyperNova<Projective, GVar, Projective2, GVar2, CubicFCircuit<Fr>, CS1, CS2>;
615
616 let prep_param =
617 PreprocessorParam::<Projective, Projective2, CubicFCircuit<Fr>, CS1, CS2>::new(
618 poseidon_config.clone(),
619 F_circuit,
620 );
621 let (prover_params, verifier_params) = HN::preprocess(&mut rng, &prep_param).unwrap();
622
623 let z_0 = vec![Fr::from(3_u32)];
624 let mut hypernova = HN::init(
625 (prover_params, verifier_params.clone()),
626 F_circuit,
627 z_0.clone(),
628 )
629 .unwrap();
630
631 let num_steps: usize = 3;
632 for _ in 0..num_steps {
633 hypernova.prove_step(&mut rng, vec![]).unwrap();
634 }
635 assert_eq!(Fr::from(num_steps as u32), hypernova.i);
636
637 let (running_instance, incoming_instance, cyclefold_instance) = hypernova.instances();
638 HN::verify(
639 verifier_params,
640 z_0,
641 hypernova.z_i,
642 hypernova.i,
643 running_instance,
644 incoming_instance,
645 cyclefold_instance,
646 )
647 .unwrap();
648 }
649}