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Split out signer types to separate source files
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| package signer | ||
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| import ( | ||
| "crypto/ecdsa" | ||
| "math/big" | ||
|
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| opcrypto "github.com/ethereum-optimism/optimism/op-service/crypto" | ||
| "github.com/ethereum/go-ethereum/accounts/abi/bind" | ||
| "github.com/ethereum/go-ethereum/common" | ||
| "github.com/ethereum/go-ethereum/crypto" | ||
| ) | ||
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| type ecdsaSigner struct { | ||
| *ecdsa.PrivateKey | ||
| } | ||
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| func (s *ecdsaSigner) Address() common.Address { | ||
| return crypto.PubkeyToAddress(s.PublicKey) | ||
| } | ||
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| func (s *ecdsaSigner) SignerFn(chainID *big.Int) bind.SignerFn { | ||
| return opcrypto.PrivateKeySignerFn(s.PrivateKey, chainID) | ||
| } | ||
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| func (s *ecdsaSigner) SignData(data []byte) ([]byte, error) { | ||
| sig, err := crypto.Sign(crypto.Keccak256(data), s.PrivateKey) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| sig[crypto.RecoveryIDOffset] += 27 | ||
| return sig, err | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| package signer | ||
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| import ( | ||
| "crypto/ecdsa" | ||
| "math/big" | ||
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| "github.com/decred/dcrd/hdkeychain/v3" | ||
| "github.com/ethereum/go-ethereum/accounts" | ||
| "github.com/ethereum/go-ethereum/accounts/abi/bind" | ||
| "github.com/ethereum/go-ethereum/common" | ||
| "github.com/ethereum/go-ethereum/core/types" | ||
| "github.com/ethereum/go-ethereum/crypto" | ||
| "github.com/tyler-smith/go-bip39" | ||
| ) | ||
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| type walletSigner struct { | ||
| wallet accounts.Wallet | ||
| account accounts.Account | ||
| } | ||
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| func (s *walletSigner) Address() common.Address { | ||
| return s.account.Address | ||
| } | ||
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| func (s *walletSigner) SignerFn(chainID *big.Int) bind.SignerFn { | ||
| return func(address common.Address, tx *types.Transaction) (*types.Transaction, error) { | ||
| return s.wallet.SignTx(s.account, tx, chainID) | ||
| } | ||
| } | ||
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| func (s *walletSigner) SignData(data []byte) ([]byte, error) { | ||
| return s.wallet.SignData(s.account, accounts.MimetypeTypedData, data) | ||
| } | ||
|
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| func derivePrivateKey(mnemonic string, path accounts.DerivationPath) (*ecdsa.PrivateKey, error) { | ||
| // Parse the seed string into the master BIP32 key. | ||
| seed, err := bip39.NewSeedWithErrorChecking(mnemonic, "") | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| privKey, err := hdkeychain.NewMaster(seed, fakeNetworkParams{}) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
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| for _, child := range path { | ||
| privKey, err = privKey.Child(child) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| } | ||
|
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| rawPrivKey, err := privKey.SerializedPrivKey() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| return crypto.ToECDSA(rawPrivKey) | ||
| } | ||
|
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| type fakeNetworkParams struct{} | ||
|
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| func (f fakeNetworkParams) HDPrivKeyVersion() [4]byte { | ||
| return [4]byte{} | ||
| } | ||
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| func (f fakeNetworkParams) HDPubKeyVersion() [4]byte { | ||
| return [4]byte{} | ||
| } |