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eth2util/signing: add NewVerifyFunc (#912)
Adds NewVerifyFunc in eth2util/signing. category: refactor ticket: #217
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,182 @@ | ||
| // Copyright © 2022 Obol Labs Inc. | ||
| // | ||
| // This program is free software: you can redistribute it and/or modify it | ||
| // under the terms of the GNU General Public License as published by the Free | ||
| // Software Foundation, either version 3 of the License, or (at your option) | ||
| // any later version. | ||
| // | ||
| // This program is distributed in the hope that it will be useful, but WITHOUT | ||
| // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
| // more details. | ||
| // | ||
| // You should have received a copy of the GNU General Public License along with | ||
| // this program. If not, see <http://www.gnu.org/licenses/>. | ||
|
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| package signing_test | ||
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| import ( | ||
| "context" | ||
| "testing" | ||
|
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| eth2p0 "github.com/attestantio/go-eth2-client/spec/phase0" | ||
| "github.com/coinbase/kryptology/pkg/signatures/bls/bls_sig" | ||
| "github.com/stretchr/testify/require" | ||
|
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| "github.com/obolnetwork/charon/core" | ||
| "github.com/obolnetwork/charon/eth2util" | ||
| "github.com/obolnetwork/charon/eth2util/signing" | ||
| "github.com/obolnetwork/charon/tbls" | ||
| "github.com/obolnetwork/charon/tbls/tblsconv" | ||
| "github.com/obolnetwork/charon/testutil" | ||
| "github.com/obolnetwork/charon/testutil/beaconmock" | ||
| ) | ||
|
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| func TestVerifyAttestation(t *testing.T) { | ||
| att := testutil.RandomAttestation() | ||
| duty := core.NewAttesterDuty(int64(att.Data.Slot)) | ||
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| bmock, err := beaconmock.New() | ||
| require.NoError(t, err) | ||
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| root, err := att.Data.HashTreeRoot() | ||
| require.NoError(t, err) | ||
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| sigData, err := signing.GetDataRoot(context.Background(), bmock, signing.DomainBeaconAttester, att.Data.Target.Epoch, root) | ||
| require.NoError(t, err) | ||
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| sig, pubkey := sign(t, sigData[:]) | ||
| att.Signature = tblsconv.SigToETH2(sig) | ||
| psig := core.NewPartialAttestation(att, 0) | ||
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| verifyFunc := signing.NewVerifyFunc(bmock) | ||
| require.NoError(t, verifyFunc(context.Background(), duty, pubkey, psig)) | ||
| } | ||
|
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| func TestVerifyBeaconBlock(t *testing.T) { | ||
| block := testutil.RandomCoreVersionSignedBeaconBlock(t) | ||
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| slot, err := block.Slot() | ||
| require.NoError(t, err) | ||
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| duty := core.NewProposerDuty(int64(slot)) | ||
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| bmock, err := beaconmock.New() | ||
| require.NoError(t, err) | ||
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| root, err := block.Root() | ||
| require.NoError(t, err) | ||
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| slotsPerEpoch, err := bmock.SlotsPerEpoch(context.Background()) | ||
| require.NoError(t, err) | ||
| epoch := eth2p0.Epoch(uint64(slot) / slotsPerEpoch) | ||
|
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| sigData, err := signing.GetDataRoot(context.Background(), bmock, signing.DomainBeaconProposer, epoch, root) | ||
| require.NoError(t, err) | ||
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| sig, pubkey := sign(t, sigData[:]) | ||
| data, err := block.SetSignature(tblsconv.SigToCore(sig)) | ||
| require.NoError(t, err) | ||
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| psig := core.ParSignedData{SignedData: data, ShareIdx: 0} | ||
| verifyFunc := signing.NewVerifyFunc(bmock) | ||
| require.NoError(t, verifyFunc(context.Background(), duty, pubkey, psig)) | ||
| } | ||
|
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| func TestVerifyDutyRandao(t *testing.T) { | ||
| duty := core.NewRandaoDuty(123) | ||
|
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| bmock, err := beaconmock.New() | ||
| require.NoError(t, err) | ||
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| slotsPerEpoch, err := bmock.SlotsPerEpoch(context.Background()) | ||
| require.NoError(t, err) | ||
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| epoch := eth2p0.Epoch(uint64(duty.Slot) / slotsPerEpoch) | ||
| sigRoot, err := eth2util.EpochHashRoot(epoch) | ||
| require.NoError(t, err) | ||
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| sigData, err := signing.GetDataRoot(context.Background(), bmock, signing.DomainRandao, epoch, sigRoot) | ||
| require.NoError(t, err) | ||
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| sig, pubkey := sign(t, sigData[:]) | ||
| psig := core.NewPartialSignature(tblsconv.SigToCore(sig), 0) | ||
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| verifyFunc := signing.NewVerifyFunc(bmock) | ||
| require.NoError(t, verifyFunc(context.Background(), duty, pubkey, psig)) | ||
| } | ||
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| func TestVerifyVoluntaryExit(t *testing.T) { | ||
| duty := core.NewVoluntaryExit(123) | ||
| exit := testutil.RandomExit() | ||
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| bmock, err := beaconmock.New() | ||
| require.NoError(t, err) | ||
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| sigRoot, err := exit.Message.HashTreeRoot() | ||
| require.NoError(t, err) | ||
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| sigData, err := signing.GetDataRoot(context.Background(), bmock, signing.DomainExit, exit.Message.Epoch, sigRoot) | ||
| require.NoError(t, err) | ||
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| sig, pubkey := sign(t, sigData[:]) | ||
| exit.Signature = tblsconv.SigToETH2(sig) | ||
| psig := core.NewPartialSignedVoluntaryExit(exit, 0) | ||
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| verifyFunc := signing.NewVerifyFunc(bmock) | ||
| require.NoError(t, verifyFunc(context.Background(), duty, pubkey, psig)) | ||
| } | ||
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| func TestVerifyBlindedBeaconBlock(t *testing.T) { | ||
| duty := core.NewBuilderProposerDuty(123) | ||
| blindedBlock := testutil.RandomCoreVersionSignedBlindedBeaconBlock(t) | ||
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| bmock, err := beaconmock.New() | ||
| require.NoError(t, err) | ||
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| sigRoot, err := blindedBlock.Root() | ||
| require.NoError(t, err) | ||
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| slotsPerEpoch, err := bmock.SlotsPerEpoch(context.Background()) | ||
| require.NoError(t, err) | ||
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| epoch := eth2p0.Epoch(uint64(duty.Slot) / slotsPerEpoch) | ||
| sigData, err := signing.GetDataRoot(context.Background(), bmock, signing.DomainBeaconProposer, epoch, sigRoot) | ||
| require.NoError(t, err) | ||
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| sig, pubkey := sign(t, sigData[:]) | ||
| data, err := blindedBlock.SetSignature(tblsconv.SigToCore(sig)) | ||
| require.NoError(t, err) | ||
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| psig := core.ParSignedData{SignedData: data, ShareIdx: 0} | ||
| verifyFunc := signing.NewVerifyFunc(bmock) | ||
| require.NoError(t, verifyFunc(context.Background(), duty, pubkey, psig)) | ||
| } | ||
|
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| func TestVerifyInvalidDuty(t *testing.T) { | ||
| duty := core.NewBuilderRegistrationDuty(123) | ||
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| bmock, err := beaconmock.New() | ||
| require.NoError(t, err) | ||
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| pubkey := testutil.RandomCorePubKey(t) | ||
| psig := core.ParSignedData{} | ||
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| verifyFunc := signing.NewVerifyFunc(bmock) | ||
| require.EqualError(t, verifyFunc(context.Background(), duty, pubkey, psig), "invalid duty type") | ||
| } | ||
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| func sign(t *testing.T, data []byte) (*bls_sig.Signature, core.PubKey) { | ||
| t.Helper() | ||
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| blsPubkey, secret, err := tbls.Keygen() | ||
| require.NoError(t, err) | ||
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| sig, err := tbls.Sign(secret, data) | ||
| require.NoError(t, err) | ||
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| pk, err := tblsconv.KeyToCore(blsPubkey) | ||
| require.NoError(t, err) | ||
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| return sig, pk | ||
| } |