Question: does gnark support BW6-633? #1019

readygo67 · 2024-01-22T13:48:52Z

readygo67
Jan 22, 2024

In https://eprint.iacr.org/2021/1359, BLS24-315/BW6-633 pair is suitable for plonk recursion, I find BLS24-315 in gnark, but I can not find BW6-633 implementation in gnark/algebra.
where can I find BW6-633?

yelhousni · 2024-01-22T17:57:08Z

yelhousni
Jan 22, 2024
Maintainer

Yes gnark supports BW6-633. It is the curve used to instantiate the SNARK that "reasons" about computations done over BLS24-315. For example in std/algebra/native/sw_bls24315, tests are performed with test.WithCurves(ecc.BW6_633)

gnark/std/algebra/native/sw_bls24315/pairing_test.go

Line 86 in 986081a

    
           assert.CheckCircuit(&pairingBLS315{}, test.WithValidAssignment(&witness), test.WithCurves(ecc.BW6_633))

.
For PlonK or Groth16 implementation with BW6-633 see https://github.com/Consensys/gnark/tree/master/backend/plonk/bw6-633 and https://github.com/Consensys/gnark/tree/master/backend/groth16/bw6-633.

0 replies

yelhousni · 2024-01-22T18:02:30Z

yelhousni
Jan 22, 2024
Maintainer

For PlonK recursion you can test it with:

func TestBLS24InBW6Commit(t *testing.T) {

        assert := test.NewAssert(t)
        innerCcs, innerVK, innerWitness, innerProof := getInnerCommit(assert, ecc.BLS24_315.ScalarField(), ecc.BW6_633.ScalarField())

        // outer proof
        circuitVk, err := ValueOfVerifyingKey[sw_bls24315.ScalarField, sw_bls24315.G1Affine, sw_bls24315.G2Affine](innerVK)
        assert.NoError(err)
        circuitWitness, err := ValueOfWitness[sw_bls24315.ScalarField](innerWitness)
        assert.NoError(err)
        circuitProof, err := ValueOfProof[sw_bls24315.ScalarField, sw_bls24315.G1Affine, sw_bls24315.G2Affine](innerProof)
        assert.NoError(err)

        outerCircuit := &OuterCircuit[sw_bls24315.ScalarField, sw_bls24315.G1Affine, sw_bls24315.G2Affine, sw_bls24315.GT]{
                InnerWitness: PlaceholderWitness[sw_bls24315.ScalarField](innerCcs),
                Proof:        PlaceholderProof[sw_bls24315.ScalarField, sw_bls24315.G1Affine, sw_bls24315.G2Affine](innerCcs),
                VerifyingKey: circuitVk,
        }
        outerAssignment := &OuterCircuit[sw_bls24315.ScalarField, sw_bls24315.G1Affine, sw_bls24315.G2Affine, sw_bls24315.GT]{
                InnerWitness: circuitWitness,
                Proof:        circuitProof,
        }

        err = test.IsSolved(outerCircuit, outerAssignment, ecc.BW6_633.ScalarField())
        assert.NoError(err)

}

0 replies

readygo67 · 2024-01-23T01:44:17Z

readygo67
Jan 23, 2024
Author

I am implementing an IVC circuit, which will jump between 2-chain curve.

	z0 = x0 + y0
  	z1 = z0 + x1
  	z2 = z1 + x2
	z3 = z2 + x3
         ..... 
       z_n = z_{n-1} + x_{n}

The following is my implementation, in the TestRecursion_Plonk_BLS12377_BW6761_BLS12377, sw_bw6761 can be used to define the outer2 circuit.

while in TestRecursion_Plonk_BLS24315_BW6633_BLS24315, sw_bw6633 is not found, I suppose it should be "ithub.com/consensys/gnark/std/algebra/emulated/sw_bw6633"

import (
	"fmt"
	"github.com/consensys/gnark-crypto/ecc"
	backend_plonk "github.com/consensys/gnark/backend/plonk"
	"github.com/consensys/gnark/backend/witness"
	"github.com/consensys/gnark/constraint"
	"github.com/consensys/gnark/frontend"
	"github.com/consensys/gnark/frontend/cs/scs"
	"github.com/consensys/gnark/std/algebra"
	"github.com/consensys/gnark/std/algebra/emulated/sw_bw6761"
	"github.com/consensys/gnark/std/algebra/native/sw_bls12377"
	"github.com/consensys/gnark/std/algebra/native/sw_bls24315"
	"github.com/consensys/gnark/std/math/bits"
	"github.com/consensys/gnark/std/math/emulated"
	"github.com/consensys/gnark/std/recursion/plonk"
	"github.com/consensys/gnark/test"
	"github.com/consensys/gnark/test/unsafekzg"
	"math/big"
	"testing"
	"time"
)

/*
		z0 = x0 + y0
	  	z1 = z0 + x1
	  	z2 = z1 + x2
		z3 = z2 + x3
	        .....
	        z_n = z_{n-1} + x+n
*/
type InnerCircuit struct {
	X, Y frontend.Variable
	Z    frontend.Variable `gnark:",public"`
}

func (c *InnerCircuit) Define(api frontend.API) error {
	//make a commitment 
        x := api.Mul(c.X, c.X)
	y := api.Mul(c.Y, c.Y)
	z := api.Add(x, y)

	committer, ok := api.(frontend.Committer)
	if !ok {
		return fmt.Errorf("builder does not implement frontend.Committer")
	}
	u, err := committer.Commit(x, z)
	if err != nil {
		return err
	}
	api.AssertIsDifferent(u, c.Z)
	
	//IVC circuit
	sum := api.Add(c.X, c.Y)
	api.AssertIsEqual(sum, c.Z)

	return nil
}

func getInnerCommit(assert *test.Assert, field, outer *big.Int) (constraint.ConstraintSystem, backend_plonk.VerifyingKey, witness.Witness, backend_plonk.Proof) {

	innerCcs, err := frontend.Compile(field, scs.NewBuilder, &InnerCircuit{})
	assert.NoError(err)

	srs, srsLagrange, err := unsafekzg.NewSRS(innerCcs)
	assert.NoError(err)

	innerPK, innerVK, err := backend_plonk.Setup(innerCcs, srs, srsLagrange)
	assert.NoError(err)

	// inner proof
	innerAssignment := &InnerCircuit{
		X: 3,
		Y: 5,
		Z: 8,
	}
	innerWitness, err := frontend.NewWitness(innerAssignment, field)
	assert.NoError(err)
	innerProof, err := backend_plonk.Prove(innerCcs, innerPK, innerWitness, plonk.GetNativeProverOptions(outer, field))

	assert.NoError(err)
	innerPubWitness, err := innerWitness.Public()
	assert.NoError(err)
	err = backend_plonk.Verify(innerProof, innerVK, innerPubWitness, plonk.GetNativeVerifierOptions(outer, field))

	assert.NoError(err)
	return innerCcs, innerVK, innerPubWitness, innerProof
}

type OuterCircuit[FR emulated.FieldParams, G1El algebra.G1ElementT, G2El algebra.G2ElementT, GtEl algebra.GtElementT] struct {
	Proof        plonk.Proof[FR, G1El, G2El]
	VerifyingKey plonk.VerifyingKey[FR, G1El, G2El] `gnark:"-"`
	InnerWitness plonk.Witness[FR]
	X            frontend.Variable
	Z            frontend.Variable `gnark:",public"`
}

func (c *OuterCircuit[FR, G1El, G2El, GtEl]) Define(api frontend.API) error {
	verifier, err := plonk.NewVerifier[FR, G1El, G2El, GtEl](api)
	if err != nil {
		return fmt.Errorf("new verifier: %w", err)
	}
	err = verifier.AssertProof(c.VerifyingKey, c.Proof, c.InnerWitness)

	field, err := emulated.NewField[FR](api)
	if err != nil {
		return err
	}

	ybits := field.ToBits(&c.InnerWitness.Public[0])
	y := bits.FromBinary(api, ybits)
	sum := api.Add(c.X, y)
	api.AssertIsEqual(sum, c.Z)
	return err
}

func TestRecursion_Plonk_BLS12377_BW6761_BLS12377(t *testing.T) {
	assert := test.NewAssert(t)

	innerField := ecc.BLS12_377.ScalarField()
	outer1Field := ecc.BW6_761.ScalarField()
	outer2Field := ecc.BLS12_377.ScalarField()

	innerCcs, innerVK, innerWitness, innerProof := getInnerCommit(assert, innerField, outer1Field)

	//inputs for outer1
	circuit1Vk, err := plonk.ValueOfVerifyingKey[sw_bls12377.ScalarField, sw_bls12377.G1Affine, sw_bls12377.G2Affine](innerVK)
	assert.NoError(err)
	circuit1Witness, err := plonk.ValueOfWitness[sw_bls12377.ScalarField](innerWitness)
	assert.NoError(err)
	circuit1Proof, err := plonk.ValueOfProof[sw_bls12377.ScalarField, sw_bls12377.G1Affine, sw_bls12377.G2Affine](innerProof)
	assert.NoError(err)

	outer1Circuit := &OuterCircuit[sw_bls12377.ScalarField, sw_bls12377.G1Affine, sw_bls12377.G2Affine, sw_bls12377.GT]{
		InnerWitness: plonk.PlaceholderWitness[sw_bls12377.ScalarField](innerCcs),
		Proof:        plonk.PlaceholderProof[sw_bls12377.ScalarField, sw_bls12377.G1Affine, sw_bls12377.G2Affine](innerCcs),
		VerifyingKey: circuit1Vk,
	}
	outer1Assignment := &OuterCircuit[sw_bls12377.ScalarField, sw_bls12377.G1Affine, sw_bls12377.G2Affine, sw_bls12377.GT]{
		InnerWitness: circuit1Witness,
		Proof:        circuit1Proof,
		X:            7,
		Z:            15,
	}

	// compile the outer circuit
	fmt.Printf("compile outer1 start...\n")
	compileOuter1Start := time.Now()
	outer1CCS, err := frontend.Compile(outer1Field, scs.NewBuilder, outer1Circuit)
	if err != nil {
		panic("compile failed: " + err.Error())
	}
	compileOuter1Duration := time.Since(compileOuter1Start)
	fmt.Printf("compile outer1 duration:%v\n", compileOuter1Duration)
	fmt.Printf("outer1 Ccs nbConstraints:%v, nbSecretWitness:%v, nbPublicInstance:%v\n", outer1CCS.GetNbConstraints(), outer1CCS.GetNbSecretVariables(), outer1CCS.GetNbPublicVariables())

	// NB! UNSAFE! Use MPC.
	fmt.Printf("generate start srs for outer1 circuit...\n")
	generateOuter1SRSStart := time.Now()
	outer1SRS, outer1SRSLagrange, err := unsafekzg.NewSRS(outer1CCS)
	assert.NoError(err)
	generateOuter1SRSDuration := time.Since(generateOuter1SRSStart)
	fmt.Printf("generate outer1 srs duration:%v\n", generateOuter1SRSDuration)

	// create PLONK setup. NB! UNSAFE
	fmt.Printf("setup outer1 start...\n")
	setupOuter1Start := time.Now()
	outer1PK, outer1VK, err := backend_plonk.Setup(outer1CCS, outer1SRS, outer1SRSLagrange) // UNSAFE! Use MPC
	assert.NoError(err)
	setupOuter1Duration := time.Since(setupOuter1Start)
	fmt.Printf("setup outer1 duration:%v\n", setupOuter1Duration)

	// create prover witness from the assignment
	outer1SecretWitness, err := frontend.NewWitness(outer1Assignment, outer1Field)
	assert.NoError(err)
	// create public witness from the assignment
	outer1PublicWitness, err := outer1SecretWitness.Public()
	assert.NoError(err)

	// construct the PLONK proof of verifying PLONK proof in-circuit
	fmt.Printf("prove outer1 start...\n")
	proveOuter1Start := time.Now()
	outer1Proof, err := backend_plonk.Prove(outer1CCS, outer1PK, outer1SecretWitness, plonk.GetNativeProverOptions(outer2Field, outer1Field))
	assert.NoError(err)
	proveOuter1Duration := time.Since(proveOuter1Start)
	fmt.Printf("prove outer1 duration:%v\n", proveOuter1Duration)

	// verify the PLONK proof
	fmt.Printf("verify outer1 start...\n")
	verifyOuter1Start := time.Now()
	err = backend_plonk.Verify(outer1Proof, outer1VK, outer1PublicWitness, plonk.GetNativeVerifierOptions(outer2Field, outer1Field))
	assert.NoError(err)
	verifyOuter1Duration := time.Since(verifyOuter1Start)
	fmt.Printf("verify outer1 duration:%v\n", verifyOuter1Duration)

	//inputs for outer2
	circuit2Vk, err := plonk.ValueOfVerifyingKey[sw_bw6761.ScalarField, sw_bw6761.G1Affine, sw_bw6761.G2Affine](outer1VK)
	assert.NoError(err)
	circuit2Witness, err := plonk.ValueOfWitness[sw_bw6761.ScalarField](outer1PublicWitness)
	assert.NoError(err)
	circuit2Proof, err := plonk.ValueOfProof[sw_bw6761.ScalarField, sw_bw6761.G1Affine, sw_bw6761.G2Affine](outer1Proof)
	assert.NoError(err)

	outer2Circuit := &OuterCircuit[sw_bw6761.ScalarField, sw_bw6761.G1Affine, sw_bw6761.G2Affine, sw_bw6761.GTEl]{
		InnerWitness: plonk.PlaceholderWitness[sw_bw6761.ScalarField](outer1CCS),
		Proof:        plonk.PlaceholderProof[sw_bw6761.ScalarField, sw_bw6761.G1Affine, sw_bw6761.G2Affine](outer1CCS),
		VerifyingKey: circuit2Vk,
	}
	outer2Assignment := &OuterCircuit[sw_bw6761.ScalarField, sw_bw6761.G1Affine, sw_bw6761.G2Affine, sw_bw6761.GTEl]{
		InnerWitness: circuit2Witness,
		Proof:        circuit2Proof,
		X:            9,
		Z:            24,
	}

	// compile the outer circuit
	fmt.Printf("compile outer2 start...\n")
	compileOuter2Start := time.Now()
	outer2CCS, err := frontend.Compile(outer2Field, scs.NewBuilder, outer2Circuit)
	if err != nil {
		panic("compile failed: " + err.Error())
	}
	compileOuter2Duration := time.Since(compileOuter2Start)
	fmt.Printf("compile outer2 duration:%v\n", compileOuter2Duration)
	fmt.Printf("outer2 CCS nbConstraints:%v, nbSecretWitness:%v, nbPublicInstance:%v\n", outer2CCS.GetNbConstraints(), outer2CCS.GetNbSecretVariables(), outer2CCS.GetNbPublicVariables())

	// NB! UNSAFE! Use MPC.
	fmt.Printf("generate start srs for outer2 circuit...\n")
	generateOuter2SRSStart := time.Now()
	outer2SRS, outer2SRSLagrange, err := unsafekzg.NewSRS(outer2CCS)
	assert.NoError(err)
	generateOuter2SRSDuration := time.Since(generateOuter2SRSStart)
	fmt.Printf("generate outer2 srs duration:%v\n", generateOuter2SRSDuration)

	// create PLONK setup. NB! UNSAFE
	fmt.Printf("setup outer2 start...\n")
	setupOuter2Start := time.Now()
	outer2PK, outer2VK, err := backend_plonk.Setup(outer2CCS, outer2SRS, outer2SRSLagrange) // UNSAFE! Use MPC
	assert.NoError(err)
	setupOuter2Duration := time.Since(setupOuter2Start)
	fmt.Printf("setup outer2 duration:%v\n", setupOuter2Duration)

	// create prover witness from the assignment
	outer2SecretWitness, err := frontend.NewWitness(outer2Assignment, outer2Field)
	assert.NoError(err)
	// create public witness from the assignment
	outer2PublicWitness, err := outer2SecretWitness.Public()
	assert.NoError(err)

	// construct the PLONK proof of verifying PLONK proof in-circuit
	fmt.Printf("prove outer2 start...\n")
	proveOuter2Start := time.Now()
	outer2Proof, err := backend_plonk.Prove(outer2CCS, outer2PK, outer2SecretWitness)
	assert.NoError(err)
	proveOuter2Duration := time.Since(proveOuter2Start)
	fmt.Printf("prove outer2 duration:%v\n", proveOuter2Duration)

	// verify the PLONK proof
	fmt.Printf("verify outer2 start...\n")
	verifyOuter2Start := time.Now()
	err = backend_plonk.Verify(outer2Proof, outer2VK, outer2PublicWitness)
	assert.NoError(err)
	verifyOuter2Duration := time.Since(verifyOuter2Start)
	fmt.Printf("verify outer2 duration:%v\n", verifyOuter2Duration)
}

func TestRecursion_Plonk_BLS24315_BW6633_BLS24315(t *testing.T) {
	assert := test.NewAssert(t)

	innerField := ecc.BLS24_315.ScalarField()
	outer1Field := ecc.BW6_633.ScalarField()
	outer2Field := ecc.BLS24_315.ScalarField()

	innerCcs, innerVK, innerWitness, innerProof := getInnerCommit(assert, innerField, outer1Field)

	//inputs for outer1
	circuit1Vk, err := plonk.ValueOfVerifyingKey[sw_bls24315.ScalarField, sw_bls24315.G1Affine, sw_bls24315.G2Affine](innerVK)
	assert.NoError(err)
	circuit1Witness, err := plonk.ValueOfWitness[sw_bls24315.ScalarField](innerWitness)
	assert.NoError(err)
	circuit1Proof, err := plonk.ValueOfProof[sw_bls24315.ScalarField, sw_bls24315.G1Affine, sw_bls24315.G2Affine](innerProof)
	assert.NoError(err)

	outer1Circuit := &OuterCircuit[sw_bls24315.ScalarField, sw_bls24315.G1Affine, sw_bls24315.G2Affine, sw_bls24315.GT]{
		InnerWitness: plonk.PlaceholderWitness[sw_bls24315.ScalarField](innerCcs),
		Proof:        plonk.PlaceholderProof[sw_bls24315.ScalarField, sw_bls24315.G1Affine, sw_bls24315.G2Affine](innerCcs),
		VerifyingKey: circuit1Vk,
	}
	outer1Assignment := &OuterCircuit[sw_bls24315.ScalarField, sw_bls24315.G1Affine, sw_bls24315.G2Affine, sw_bls24315.GT]{
		InnerWitness: circuit1Witness,
		Proof:        circuit1Proof,
		X:            7,
		Z:            15,
	}

	// compile the outer circuit
	fmt.Printf("compile outer1 start...\n")
	compileOuter1Start := time.Now()
	outer1CCS, err := frontend.Compile(outer1Field, scs.NewBuilder, outer1Circuit)
	if err != nil {
		panic("compile failed: " + err.Error())
	}
	compileOuter1Duration := time.Since(compileOuter1Start)
	fmt.Printf("compile outer1 duration:%v\n", compileOuter1Duration)
	fmt.Printf("outer1 Ccs nbConstraints:%v, nbSecretWitness:%v, nbPublicInstance:%v\n", outer1CCS.GetNbConstraints(), outer1CCS.GetNbSecretVariables(), outer1CCS.GetNbPublicVariables())

	// NB! UNSAFE! Use MPC.
	fmt.Printf("generate start srs for outer1 circuit...\n")
	generateOuter1SRSStart := time.Now()
	outer1SRS, outer1SRSLagrange, err := unsafekzg.NewSRS(outer1CCS)
	assert.NoError(err)
	generateOuter1SRSDuration := time.Since(generateOuter1SRSStart)
	fmt.Printf("generate outer1 srs duration:%v\n", generateOuter1SRSDuration)

	// create PLONK setup. NB! UNSAFE
	fmt.Printf("setup outer1 start...\n")
	setupOuter1Start := time.Now()
	outer1PK, outer1VK, err := backend_plonk.Setup(outer1CCS, outer1SRS, outer1SRSLagrange) // UNSAFE! Use MPC
	assert.NoError(err)
	setupOuter1Duration := time.Since(setupOuter1Start)
	fmt.Printf("setup outer1 duration:%v\n", setupOuter1Duration)

	// create prover witness from the assignment
	outer1SecretWitness, err := frontend.NewWitness(outer1Assignment, outer1Field)
	assert.NoError(err)
	// create public witness from the assignment
	outer1PublicWitness, err := outer1SecretWitness.Public()
	assert.NoError(err)

	// construct the PLONK proof of verifying PLONK proof in-circuit
	fmt.Printf("prove outer1 start...\n")
	proveOuter1Start := time.Now()
	outer1Proof, err := backend_plonk.Prove(outer1CCS, outer1PK, outer1SecretWitness, plonk.GetNativeProverOptions(outer2Field, outer1Field))
	assert.NoError(err)
	proveOuter1Duration := time.Since(proveOuter1Start)
	fmt.Printf("prove outer1 duration:%v\n", proveOuter1Duration)

	// verify the PLONK proof
	fmt.Printf("verify outer1 start...\n")
	verifyOuter1Start := time.Now()
	err = backend_plonk.Verify(outer1Proof, outer1VK, outer1PublicWitness, plonk.GetNativeVerifierOptions(outer2Field, outer1Field))
	assert.NoError(err)
	verifyOuter1Duration := time.Since(verifyOuter1Start)
	fmt.Printf("verify outer1 duration:%v\n", verifyOuter1Duration)

	//inputs for outer2
	circuit2Vk, err := plonk.ValueOfVerifyingKey[sw_bw6633.ScalarField, sw_bw6633.G1Affine, sw_bw6633.G2Affine](outer1VK)
	assert.NoError(err)
	circuit2Witness, err := plonk.ValueOfWitness[sw_bw6633.ScalarField](outer1PublicWitness)
	assert.NoError(err)
	circuit2Proof, err := plonk.ValueOfProof[sw_bw6633.ScalarField, sw_bw6633.G1Affine, sw_bw6633.G2Affine](outer1Proof)
	assert.NoError(err)

	outer2Circuit := &OuterCircuit[sw_bw6633.ScalarField, sw_bw6633.G1Affine, sw_bw6633.G2Affine, sw_bw6633.GTEl]{
		InnerWitness: plonk.PlaceholderWitness[sw_bw6633.ScalarField](outer1CCS),
		Proof:        plonk.PlaceholderProof[sw_bw6633.ScalarField, sw_bw6633.G1Affine, sw_bw6633.G2Affine](outer1CCS),
		VerifyingKey: circuit2Vk,
	}
	outer2Assignment := &OuterCircuit[sw_bw6633.ScalarField, sw_bw6633.G1Affine, sw_bw6633.G2Affine, sw_bw6633.GTEl]{
		InnerWitness: circuit2Witness,
		Proof:        circuit2Proof,
		X:            9,
		Z:            24,
	}

	// compile the outer circuit
	fmt.Printf("compile outer2 start...\n")
	compileOuter2Start := time.Now()
	outer2CCS, err := frontend.Compile(outer2Field, scs.NewBuilder, outer2Circuit)
	if err != nil {
		panic("compile failed: " + err.Error())
	}
	compileOuter2Duration := time.Since(compileOuter2Start)
	fmt.Printf("compile outer2 duration:%v\n", compileOuter2Duration)
	fmt.Printf("outer2 CCS nbConstraints:%v, nbSecretWitness:%v, nbPublicInstance:%v\n", outer2CCS.GetNbConstraints(), outer2CCS.GetNbSecretVariables(), outer2CCS.GetNbPublicVariables())

	// NB! UNSAFE! Use MPC.
	fmt.Printf("generate start srs for outer2 circuit...\n")
	generateOuter2SRSStart := time.Now()
	outer2SRS, outer2SRSLagrange, err := unsafekzg.NewSRS(outer2CCS)
	assert.NoError(err)
	generateOuter2SRSDuration := time.Since(generateOuter2SRSStart)
	fmt.Printf("generate outer2 srs duration:%v\n", generateOuter2SRSDuration)

	// create PLONK setup. NB! UNSAFE
	fmt.Printf("setup outer2 start...\n")
	setupOuter2Start := time.Now()
	outer2PK, outer2VK, err := backend_plonk.Setup(outer2CCS, outer2SRS, outer2SRSLagrange) // UNSAFE! Use MPC
	assert.NoError(err)
	setupOuter2Duration := time.Since(setupOuter2Start)
	fmt.Printf("setup outer2 duration:%v\n", setupOuter2Duration)

	// create prover witness from the assignment
	outer2SecretWitness, err := frontend.NewWitness(outer2Assignment, outer2Field)
	assert.NoError(err)
	// create public witness from the assignment
	outer2PublicWitness, err := outer2SecretWitness.Public()
	assert.NoError(err)

	// construct the PLONK proof of verifying PLONK proof in-circuit
	fmt.Printf("prove outer2 start...\n")
	proveOuter2Start := time.Now()
	outer2Proof, err := backend_plonk.Prove(outer2CCS, outer2PK, outer2SecretWitness)
	assert.NoError(err)
	proveOuter2Duration := time.Since(proveOuter2Start)
	fmt.Printf("prove outer2 duration:%v\n", proveOuter2Duration)

	// verify the PLONK proof
	fmt.Printf("verify outer2 start...\n")
	verifyOuter2Start := time.Now()
	err = backend_plonk.Verify(outer2Proof, outer2VK, outer2PublicWitness)
	assert.NoError(err)
	verifyOuter2Duration := time.Since(verifyOuter2Start)
	fmt.Printf("verify outer2 duration:%v\n", verifyOuter2Duration)
}

0 replies

yelhousni · 2024-01-23T09:22:22Z

yelhousni
Jan 23, 2024
Maintainer

Ah ok what you're looking for is the non-native implementation of BW6-633 pairing in a SNARK circuit. No indeed it's not implemented yet but you can have a shot at it! it should be similar to sw_bw6761 with slight changes that you can identify by looking at https://github.com/Consensys/gnark-crypto/blob/master/ecc/bw6-633/pairing.go.

That is interesting! for what project are you trying to use BLS24/BW6 chain? Are you for now just trying to compare it to BLS12/BW6 chain or did identify a potential need for it? Thank you for all the issues btw @readygo67

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readygo67 · 2024-01-24T00:55:02Z

readygo67
Jan 24, 2024
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We are implementing a ZKP for ETH2, but syncCommittee + bls12-381 signature's circuit size is about 200M. It's too huge for a single circuit, so plan to use recursion to achieve our goal.

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Question: does gnark support BW6-633? #1019

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Question: does gnark support BW6-633? #1019

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