crypto/kzg4844: add ComputeCells to compute cell proofs

This commit is contained in:
Marius van der Wijden 2025-03-11 12:54:40 +01:00 committed by MariusVanDerWijden
parent 846c14e21f
commit a82708eab0
7 changed files with 4182 additions and 9 deletions

View file

@ -149,6 +149,17 @@ func VerifyBlobProof(blob *Blob, commitment Commitment, proof Proof) error {
return gokzgVerifyBlobProof(blob, commitment, proof)
}
// ComputeCells returns the KZG cell proofs that are used to verify the blob against
// the commitment.
//
// This method does not verify that the commitment is correct with respect to blob.
func ComputeCells(blob *Blob) ([]Proof, error) {
if useCKZG.Load() {
return ckzgComputeCells(blob)
}
return gokzgComputeCells(blob)
}
// CalcBlobHashV1 calculates the 'versioned blob hash' of a commitment.
// The given hasher must be a sha256 hash instance, otherwise the result will be invalid!
func CalcBlobHashV1(hasher hash.Hash, commit *Commitment) (vh [32]byte) {

View file

@ -23,8 +23,8 @@ import (
"errors"
"sync"
gokzg4844 "github.com/crate-crypto/go-kzg-4844"
ckzg4844 "github.com/ethereum/c-kzg-4844/bindings/go"
gokzg4844 "github.com/crate-crypto/go-eth-kzg"
ckzg4844 "github.com/ethereum/c-kzg-4844/v2/bindings/go"
"github.com/ethereum/go-ethereum/common/hexutil"
)
@ -47,15 +47,21 @@ func ckzgInit() {
if err = gokzg4844.CheckTrustedSetupIsWellFormed(params); err != nil {
panic(err)
}
g1s := make([]byte, len(params.SetupG1Lagrange)*(len(params.SetupG1Lagrange[0])-2)/2)
g1Lag := make([]byte, len(params.SetupG1Lagrange)*(len(params.SetupG1Lagrange[0])-2)/2)
for i, g1 := range params.SetupG1Lagrange {
copy(g1Lag[i*(len(g1)-2)/2:], hexutil.MustDecode(g1))
}
g1s := make([]byte, len(params.SetupG1Monomial)*(len(params.SetupG1Monomial[0])-2)/2)
for i, g1 := range params.SetupG1Monomial {
copy(g1s[i*(len(g1)-2)/2:], hexutil.MustDecode(g1))
}
g2s := make([]byte, len(params.SetupG2)*(len(params.SetupG2[0])-2)/2)
for i, g2 := range params.SetupG2 {
copy(g2s[i*(len(g2)-2)/2:], hexutil.MustDecode(g2))
}
if err = ckzg4844.LoadTrustedSetup(g1s, g2s); err != nil {
// The last parameter determines the multiplication table, see https://notes.ethereum.org/@jtraglia/windowed_multiplications
// I think 6 is an decent compromise between size and speed
if err = ckzg4844.LoadTrustedSetup(g1s, g1Lag, g2s, 6); err != nil {
panic(err)
}
}
@ -125,3 +131,21 @@ func ckzgVerifyBlobProof(blob *Blob, commitment Commitment, proof Proof) error {
}
return nil
}
// ckzgComputeCells returns the KZG cell proofs that are used to verify the blob against
// the commitment.
//
// This method does not verify that the commitment is correct with respect to blob.
func ckzgComputeCells(blob *Blob) ([]Proof, error) {
ckzgIniter.Do(ckzgInit)
_, proofs, err := ckzg4844.ComputeCellsAndKZGProofs((*ckzg4844.Blob)(blob))
if err != nil {
return []Proof{}, err
}
var p []Proof
for _, proof := range proofs {
p = append(p, (Proof)(proof))
}
return p, nil
}

View file

@ -60,3 +60,11 @@ func ckzgComputeBlobProof(blob *Blob, commitment Commitment) (Proof, error) {
func ckzgVerifyBlobProof(blob *Blob, commitment Commitment, proof Proof) error {
panic("unsupported platform")
}
// ckzgComputeCells returns the KZG cell proofs that are used to verify the blob against
// the commitment.
//
// This method does not verify that the commitment is correct with respect to blob.
func ckzgComputeCells(blob *Blob) ([]Proof, error) {
panic("unsupported platform")
}

View file

@ -20,7 +20,7 @@ import (
"encoding/json"
"sync"
gokzg4844 "github.com/crate-crypto/go-kzg-4844"
gokzg4844 "github.com/crate-crypto/go-eth-kzg"
)
// context is the crypto primitive pre-seeded with the trusted setup parameters.
@ -96,3 +96,21 @@ func gokzgVerifyBlobProof(blob *Blob, commitment Commitment, proof Proof) error
return context.VerifyBlobKZGProof((*gokzg4844.Blob)(blob), (gokzg4844.KZGCommitment)(commitment), (gokzg4844.KZGProof)(proof))
}
// gokzgComputeCells returns the KZG cell proofs that are used to verify the blob against
// the commitment.
//
// This method does not verify that the commitment is correct with respect to blob.
func gokzgComputeCells(blob *Blob) ([]Proof, error) {
gokzgIniter.Do(gokzgInit)
_, proofs, err := context.ComputeCellsAndKZGProofs((*gokzg4844.Blob)(blob), 0)
if err != nil {
return []Proof{}, err
}
var p []Proof
for _, proof := range proofs {
p = append(p, (Proof)(proof))
}
return p, nil
}

File diff suppressed because it is too large Load diff

10
go.mod
View file

@ -13,7 +13,7 @@ require (
github.com/cespare/cp v0.1.0
github.com/cloudflare/cloudflare-go v0.114.0
github.com/cockroachdb/pebble v1.1.2
github.com/consensys/gnark-crypto v0.14.0
github.com/consensys/gnark-crypto v0.16.0
github.com/crate-crypto/go-ipa v0.0.0-20240724233137-53bbb0ceb27a
github.com/crate-crypto/go-kzg-4844 v1.1.0
github.com/davecgh/go-spew v1.1.1
@ -21,7 +21,7 @@ require (
github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1
github.com/donovanhide/eventsource v0.0.0-20210830082556-c59027999da0
github.com/dop251/goja v0.0.0-20230605162241-28ee0ee714f3
github.com/ethereum/c-kzg-4844 v1.0.0
github.com/ethereum/c-kzg-4844 v1.0.3
github.com/ethereum/go-verkle v0.2.2
github.com/fatih/color v1.16.0
github.com/ferranbt/fastssz v0.1.2
@ -91,17 +91,19 @@ require (
github.com/aws/aws-sdk-go-v2/service/sts v1.23.2 // indirect
github.com/aws/smithy-go v1.15.0 // indirect
github.com/beorn7/perks v1.0.1 // indirect
github.com/bits-and-blooms/bitset v1.17.0 // indirect
github.com/bits-and-blooms/bitset v1.20.0 // indirect
github.com/cespare/xxhash/v2 v2.3.0 // indirect
github.com/cockroachdb/errors v1.11.3 // indirect
github.com/cockroachdb/fifo v0.0.0-20240606204812-0bbfbd93a7ce // indirect
github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b // indirect
github.com/cockroachdb/redact v1.1.5 // indirect
github.com/cockroachdb/tokenbucket v0.0.0-20230807174530-cc333fc44b06 // indirect
github.com/consensys/bavard v0.1.22 // indirect
github.com/consensys/bavard v0.1.27 // indirect
github.com/cpuguy83/go-md2man/v2 v2.0.5 // indirect
github.com/crate-crypto/go-eth-kzg v1.3.0 // indirect
github.com/deepmap/oapi-codegen v1.6.0 // indirect
github.com/dlclark/regexp2 v1.7.0 // indirect
github.com/ethereum/c-kzg-4844/v2 v2.0.1 // indirect
github.com/garslo/gogen v0.0.0-20170306192744-1d203ffc1f61 // indirect
github.com/getsentry/sentry-go v0.27.0 // indirect
github.com/go-ole/go-ole v1.3.0 // indirect

12
go.sum
View file

@ -92,6 +92,8 @@ github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/bits-and-blooms/bitset v1.17.0 h1:1X2TS7aHz1ELcC0yU1y2stUs/0ig5oMU6STFZGrhvHI=
github.com/bits-and-blooms/bitset v1.17.0/go.mod h1:7hO7Gc7Pp1vODcmWvKMRA9BNmbv6a/7QIWpPxHddWR8=
github.com/bits-and-blooms/bitset v1.20.0 h1:2F+rfL86jE2d/bmw7OhqUg2Sj/1rURkBn3MdfoPyRVU=
github.com/bits-and-blooms/bitset v1.20.0/go.mod h1:7hO7Gc7Pp1vODcmWvKMRA9BNmbv6a/7QIWpPxHddWR8=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/cespare/cp v0.1.0 h1:SE+dxFebS7Iik5LK0tsi1k9ZCxEaFX4AjQmoyA+1dJk=
github.com/cespare/cp v0.1.0/go.mod h1:SOGHArjBr4JWaSDEVpWpo/hNg6RoKrls6Oh40hiwW+s=
@ -126,10 +128,16 @@ github.com/cockroachdb/tokenbucket v0.0.0-20230807174530-cc333fc44b06 h1:zuQyyAK
github.com/cockroachdb/tokenbucket v0.0.0-20230807174530-cc333fc44b06/go.mod h1:7nc4anLGjupUW/PeY5qiNYsdNXj7zopG+eqsS7To5IQ=
github.com/consensys/bavard v0.1.22 h1:Uw2CGvbXSZWhqK59X0VG/zOjpTFuOMcPLStrp1ihI0A=
github.com/consensys/bavard v0.1.22/go.mod h1:k/zVjHHC4B+PQy1Pg7fgvG3ALicQw540Crag8qx+dZs=
github.com/consensys/bavard v0.1.27 h1:j6hKUrGAy/H+gpNrpLU3I26n1yc+VMGmd6ID5+gAhOs=
github.com/consensys/bavard v0.1.27/go.mod h1:k/zVjHHC4B+PQy1Pg7fgvG3ALicQw540Crag8qx+dZs=
github.com/consensys/gnark-crypto v0.14.0 h1:DDBdl4HaBtdQsq/wfMwJvZNE80sHidrK3Nfrefatm0E=
github.com/consensys/gnark-crypto v0.14.0/go.mod h1:CU4UijNPsHawiVGNxe9co07FkzCeWHHrb1li/n1XoU0=
github.com/consensys/gnark-crypto v0.16.0 h1:8Dl4eYmUWK9WmlP1Bj6je688gBRJCJbT8Mw4KoTAawo=
github.com/consensys/gnark-crypto v0.16.0/go.mod h1:Ke3j06ndtPTVvo++PhGNgvm+lgpLvzbcE2MqljY7diU=
github.com/cpuguy83/go-md2man/v2 v2.0.5 h1:ZtcqGrnekaHpVLArFSe4HK5DoKx1T0rq2DwVB0alcyc=
github.com/cpuguy83/go-md2man/v2 v2.0.5/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
github.com/crate-crypto/go-eth-kzg v1.3.0 h1:05GrhASN9kDAidaFJOda6A4BEvgvuXbazXg/0E3OOdI=
github.com/crate-crypto/go-eth-kzg v1.3.0/go.mod h1:J9/u5sWfznSObptgfa92Jq8rTswn6ahQWEuiLHOjCUI=
github.com/crate-crypto/go-ipa v0.0.0-20240724233137-53bbb0ceb27a h1:W8mUrRp6NOVl3J+MYp5kPMoUZPp7aOYHtaua31lwRHg=
github.com/crate-crypto/go-ipa v0.0.0-20240724233137-53bbb0ceb27a/go.mod h1:sTwzHBvIzm2RfVCGNEBZgRyjwK40bVoun3ZnGOCafNM=
github.com/crate-crypto/go-kzg-4844 v1.1.0 h1:EN/u9k2TF6OWSHrCCDBBU6GLNMq88OspHHlMnHfoyU4=
@ -166,6 +174,10 @@ github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1m
github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
github.com/ethereum/c-kzg-4844 v1.0.0 h1:0X1LBXxaEtYD9xsyj9B9ctQEZIpnvVDeoBx8aHEwTNA=
github.com/ethereum/c-kzg-4844 v1.0.0/go.mod h1:VewdlzQmpT5QSrVhbBuGoCdFJkpaJlO1aQputP83wc0=
github.com/ethereum/c-kzg-4844 v1.0.3 h1:IEnbOHwjixW2cTvKRUlAAUOeleV7nNM/umJR+qy4WDs=
github.com/ethereum/c-kzg-4844 v1.0.3/go.mod h1:VewdlzQmpT5QSrVhbBuGoCdFJkpaJlO1aQputP83wc0=
github.com/ethereum/c-kzg-4844/v2 v2.0.1 h1:NuErvd0Ha5gLvvZ1m9Id9UZ11kcqMBUUXsbm7yXcAYI=
github.com/ethereum/c-kzg-4844/v2 v2.0.1/go.mod h1:urP+cLBtKCW4BS5bnA2IXYs1PRGPpXmdotqpBuU6/5s=
github.com/ethereum/go-verkle v0.2.2 h1:I2W0WjnrFUIzzVPwm8ykY+7pL2d4VhlsePn4j7cnFk8=
github.com/ethereum/go-verkle v0.2.2/go.mod h1:M3b90YRnzqKyyzBEWJGqj8Qff4IDeXnzFw0P9bFw3uk=
github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=