diff --git a/crypto/kzg4844/kzg4844.go b/crypto/kzg4844/kzg4844.go index 54d15ef8b0..558f2b4de3 100644 --- a/crypto/kzg4844/kzg4844.go +++ b/crypto/kzg4844/kzg4844.go @@ -43,6 +43,11 @@ func (b *Blob) UnmarshalJSON(input []byte) error { return hexutil.UnmarshalFixedJSON(blobT, input, b[:]) } +// MarshalText returns the hex representation of b. +func (b Blob) MarshalText() ([]byte, error) { + return hexutil.Bytes(b[:]).MarshalText() +} + // Commitment is a serialized commitment to a polynomial. type Commitment [48]byte @@ -51,6 +56,11 @@ func (c *Commitment) UnmarshalJSON(input []byte) error { return hexutil.UnmarshalFixedJSON(commitmentT, input, c[:]) } +// MarshalText returns the hex representation of c. +func (c Commitment) MarshalText() ([]byte, error) { + return hexutil.Bytes(c[:]).MarshalText() +} + // Proof is a serialized commitment to the quotient polynomial. type Proof [48]byte @@ -59,6 +69,11 @@ func (p *Proof) UnmarshalJSON(input []byte) error { return hexutil.UnmarshalFixedJSON(proofT, input, p[:]) } +// MarshalText returns the hex representation of p. +func (p Proof) MarshalText() ([]byte, error) { + return hexutil.Bytes(p[:]).MarshalText() +} + // Point is a BLS field element. type Point [32]byte diff --git a/internal/ethapi/api.go b/internal/ethapi/api.go index 598d0406d7..b2b7e5c4b0 100644 --- a/internal/ethapi/api.go +++ b/internal/ethapi/api.go @@ -1846,7 +1846,6 @@ func (s *TransactionAPI) FillTransaction(ctx context.Context, args BlobTransacti } // Assemble the transaction and obtain rlp tx := args.toTransaction() - // TODO(s1na): fill in blob proofs, commitments data, err := tx.MarshalBinary() if err != nil { return nil, err diff --git a/internal/ethapi/api_test.go b/internal/ethapi/api_test.go index 6fbf8dd022..6e3bbcac65 100644 --- a/internal/ethapi/api_test.go +++ b/internal/ethapi/api_test.go @@ -45,6 +45,7 @@ import ( "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/core/vm" "github.com/ethereum/go-ethereum/crypto" + "github.com/ethereum/go-ethereum/crypto/kzg4844" "github.com/ethereum/go-ethereum/ethdb" "github.com/ethereum/go-ethereum/event" "github.com/ethereum/go-ethereum/internal/blocktest" @@ -1085,6 +1086,213 @@ func TestSendBlobTransaction(t *testing.T) { } } +func TestFillBlobTransaction(t *testing.T) { + t.Parallel() + // Initialize test accounts + var ( + key, _ = crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a") + to = crypto.PubkeyToAddress(key.PublicKey) + genesis = &core.Genesis{ + Config: params.MergedTestChainConfig, + Alloc: core.GenesisAlloc{}, + } + emptyBlob = kzg4844.Blob{} + emptyBlobCommit, _ = kzg4844.BlobToCommitment(emptyBlob) + emptyBlobProof, _ = kzg4844.ComputeBlobProof(emptyBlob, emptyBlobCommit) + emptyBlobHash = types.BlobHash(&emptyBlobCommit) + ) + b := newTestBackend(t, 1, genesis, beacon.New(ethash.NewFaker()), func(i int, b *core.BlockGen) { + b.SetPoS() + }) + api := NewTransactionAPI(b, nil) + type result struct { + Hashes []common.Hash + Sidecar *types.BlobTxSidecar + } + suite := []struct { + name string + args BlobTransactionArgs + err string + want *result + }{ + { + name: "TestInvalidParamsCombination1", + args: BlobTransactionArgs{ + TransactionArgs: TransactionArgs{ + From: &b.acc.Address, + To: &to, + Value: (*hexutil.Big)(big.NewInt(1)), + }, + Blobs: []kzg4844.Blob{{}}, + Proofs: []kzg4844.Proof{{}}, + }, + err: `blob proofs provided while commitments were not`, + }, + { + name: "TestInvalidParamsCombination2", + args: BlobTransactionArgs{ + TransactionArgs: TransactionArgs{ + From: &b.acc.Address, + To: &to, + Value: (*hexutil.Big)(big.NewInt(1)), + }, + Blobs: []kzg4844.Blob{{}}, + Commitments: []kzg4844.Commitment{{}}, + }, + err: `blob commitments provided while proofs were not`, + }, + { + name: "TestInvalidParamsCount1", + args: BlobTransactionArgs{ + TransactionArgs: TransactionArgs{ + From: &b.acc.Address, + To: &to, + Value: (*hexutil.Big)(big.NewInt(1)), + }, + Blobs: []kzg4844.Blob{{}}, + Commitments: []kzg4844.Commitment{{}, {}}, + Proofs: []kzg4844.Proof{{}, {}}, + }, + err: `number of blobs and commitments mismatch (have=2, want=1)`, + }, + { + name: "TestInvalidParamsCount2", + args: BlobTransactionArgs{ + TransactionArgs: TransactionArgs{ + From: &b.acc.Address, + To: &to, + Value: (*hexutil.Big)(big.NewInt(1)), + }, + Blobs: []kzg4844.Blob{{}, {}}, + Commitments: []kzg4844.Commitment{{}, {}}, + Proofs: []kzg4844.Proof{{}}, + }, + err: `number of blobs and proofs mismatch (have=1, want=2)`, + }, + { + name: "TestInvalidProofVerification", + args: BlobTransactionArgs{ + TransactionArgs: TransactionArgs{ + From: &b.acc.Address, + To: &to, + Value: (*hexutil.Big)(big.NewInt(1)), + }, + Blobs: []kzg4844.Blob{{}, {}}, + Commitments: []kzg4844.Commitment{{}, {}}, + Proofs: []kzg4844.Proof{{}, {}}, + }, + err: `failed to verify blob proof: short buffer`, + }, + { + name: "TestGenerateBlobHashes", + args: BlobTransactionArgs{ + TransactionArgs: TransactionArgs{ + From: &b.acc.Address, + To: &to, + Value: (*hexutil.Big)(big.NewInt(1)), + }, + Blobs: []kzg4844.Blob{emptyBlob}, + Commitments: []kzg4844.Commitment{emptyBlobCommit}, + Proofs: []kzg4844.Proof{emptyBlobProof}, + }, + want: &result{ + Hashes: []common.Hash{emptyBlobHash}, + Sidecar: &types.BlobTxSidecar{ + Blobs: []kzg4844.Blob{emptyBlob}, + Commitments: []kzg4844.Commitment{emptyBlobCommit}, + Proofs: []kzg4844.Proof{emptyBlobProof}, + }, + }, + }, + { + name: "TestValidBlobHashes", + args: BlobTransactionArgs{ + TransactionArgs: TransactionArgs{ + From: &b.acc.Address, + To: &to, + Value: (*hexutil.Big)(big.NewInt(1)), + BlobHashes: []common.Hash{emptyBlobHash}, + }, + Blobs: []kzg4844.Blob{emptyBlob}, + Commitments: []kzg4844.Commitment{emptyBlobCommit}, + Proofs: []kzg4844.Proof{emptyBlobProof}, + }, + want: &result{ + Hashes: []common.Hash{emptyBlobHash}, + Sidecar: &types.BlobTxSidecar{ + Blobs: []kzg4844.Blob{emptyBlob}, + Commitments: []kzg4844.Commitment{emptyBlobCommit}, + Proofs: []kzg4844.Proof{emptyBlobProof}, + }, + }, + }, + { + name: "TestInvalidBlobHashes", + args: BlobTransactionArgs{ + TransactionArgs: TransactionArgs{ + From: &b.acc.Address, + To: &to, + Value: (*hexutil.Big)(big.NewInt(1)), + BlobHashes: []common.Hash{{0x01, 0x22}}, + }, + Blobs: []kzg4844.Blob{emptyBlob}, + Commitments: []kzg4844.Commitment{emptyBlobCommit}, + Proofs: []kzg4844.Proof{emptyBlobProof}, + }, + err: fmt.Sprintf("blob hash verification failed (have=%s, want=%s)", common.Hash{0x01, 0x22}, emptyBlobHash), + }, + { + name: "TestGenerateBlobProofs", + args: BlobTransactionArgs{ + TransactionArgs: TransactionArgs{ + From: &b.acc.Address, + To: &to, + Value: (*hexutil.Big)(big.NewInt(1)), + }, + Blobs: []kzg4844.Blob{emptyBlob}, + }, + want: &result{ + Hashes: []common.Hash{emptyBlobHash}, + Sidecar: &types.BlobTxSidecar{ + Blobs: []kzg4844.Blob{emptyBlob}, + Commitments: []kzg4844.Commitment{emptyBlobCommit}, + Proofs: []kzg4844.Proof{emptyBlobProof}, + }, + }, + }, + } + for _, tc := range suite { + t.Run(tc.name, func(t *testing.T) { + res, err := api.FillTransaction(context.Background(), tc.args) + if len(tc.err) > 0 { + if err == nil { + t.Fatalf("missing error. want: %s", tc.err) + } else if err != nil && err.Error() != tc.err { + t.Fatalf("error mismatch. want: %s, have: %s", tc.err, err.Error()) + } + return + } + if err != nil && len(tc.err) == 0 { + t.Fatalf("expected no error. have: %s", err) + } + if res == nil { + t.Fatal("result missing") + } + want, err := json.Marshal(tc.want) + if err != nil { + t.Fatalf("failed to encode expected: %v", err) + } + have, err := json.Marshal(result{Hashes: res.Tx.BlobHashes(), Sidecar: res.Tx.BlobTxSidecar()}) + if err != nil { + t.Fatalf("failed to encode computed sidecar: %v", err) + } + if bytes.Compare(have, want) != 0 { + t.Errorf("blob sidecar mismatch. Have: %s, want: %s", have, want) + } + }) + } +} + func argsFromTransaction(tx *types.Transaction, from common.Address) TransactionArgs { var ( gas = tx.Gas()