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* bump btcd for security fix Solution: - update cosmos-sdk to 0.46.11 - bump btcd * remove go-ethereum-hdwallet dependency * gomod2nix * miss file
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,182 @@ | ||
// NOTE: This code is being used as test helper functions. | ||
package hd | ||
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import ( | ||
"crypto/ecdsa" | ||
"errors" | ||
"os" | ||
"sync" | ||
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"github.com/ethereum/go-ethereum/accounts" | ||
"github.com/ethereum/go-ethereum/common" | ||
"github.com/ethereum/go-ethereum/crypto" | ||
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"github.com/btcsuite/btcd/btcutil/hdkeychain" | ||
"github.com/btcsuite/btcd/chaincfg" | ||
bip39 "github.com/tyler-smith/go-bip39" | ||
) | ||
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const issue179FixEnvar = "GO_ETHEREUM_HDWALLET_FIX_ISSUE_179" | ||
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// Wallet is the underlying wallet struct. | ||
type Wallet struct { | ||
mnemonic string | ||
masterKey *hdkeychain.ExtendedKey | ||
seed []byte | ||
paths map[common.Address]accounts.DerivationPath | ||
accounts []accounts.Account | ||
stateLock sync.RWMutex | ||
fixIssue172 bool | ||
} | ||
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// NewFromMnemonic returns a new wallet from a BIP-39 mnemonic. | ||
func NewFromMnemonic(mnemonic string) (*Wallet, error) { | ||
if mnemonic == "" { | ||
return nil, errors.New("mnemonic is required") | ||
} | ||
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if !bip39.IsMnemonicValid(mnemonic) { | ||
return nil, errors.New("mnemonic is invalid") | ||
} | ||
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seed, err := NewSeedFromMnemonic(mnemonic) | ||
if err != nil { | ||
return nil, err | ||
} | ||
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wallet, err := newWallet(seed) | ||
if err != nil { | ||
return nil, err | ||
} | ||
wallet.mnemonic = mnemonic | ||
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return wallet, nil | ||
} | ||
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// NewSeedFromMnemonic returns a BIP-39 seed based on a BIP-39 mnemonic. | ||
func NewSeedFromMnemonic(mnemonic string) ([]byte, error) { | ||
if mnemonic == "" { | ||
return nil, errors.New("mnemonic is required") | ||
} | ||
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return bip39.NewSeedWithErrorChecking(mnemonic, "") | ||
} | ||
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func newWallet(seed []byte) (*Wallet, error) { | ||
masterKey, err := hdkeychain.NewMaster(seed, &chaincfg.MainNetParams) | ||
if err != nil { | ||
return nil, err | ||
} | ||
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return &Wallet{ | ||
masterKey: masterKey, | ||
seed: seed, | ||
accounts: []accounts.Account{}, | ||
paths: map[common.Address]accounts.DerivationPath{}, | ||
fixIssue172: false || len(os.Getenv(issue179FixEnvar)) > 0, | ||
}, nil | ||
} | ||
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// Derive implements accounts.Wallet, deriving a new account at the specific | ||
// derivation path. If pin is set to true, the account will be added to the list | ||
// of tracked accounts. | ||
func (w *Wallet) Derive(path accounts.DerivationPath, pin bool) (accounts.Account, error) { | ||
// Try to derive the actual account and update its URL if successful | ||
w.stateLock.RLock() // Avoid device disappearing during derivation | ||
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address, err := w.deriveAddress(path) | ||
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w.stateLock.RUnlock() | ||
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// If an error occurred or no pinning was requested, return | ||
if err != nil { | ||
return accounts.Account{}, err | ||
} | ||
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account := accounts.Account{ | ||
Address: address, | ||
URL: accounts.URL{ | ||
Scheme: "", | ||
Path: path.String(), | ||
}, | ||
} | ||
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if !pin { | ||
return account, nil | ||
} | ||
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// Pinning needs to modify the state | ||
w.stateLock.Lock() | ||
defer w.stateLock.Unlock() | ||
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if _, ok := w.paths[address]; !ok { | ||
w.accounts = append(w.accounts, account) | ||
w.paths[address] = path | ||
} | ||
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return account, nil | ||
} | ||
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// MustParseDerivationPath parses the derivation path in string format into | ||
// []uint32 but will panic if it can't parse it. | ||
func MustParseDerivationPath(path string) accounts.DerivationPath { | ||
parsed, err := accounts.ParseDerivationPath(path) | ||
if err != nil { | ||
panic(err) | ||
} | ||
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return parsed | ||
} | ||
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// DerivePrivateKey derives the private key of the derivation path. | ||
func (w *Wallet) derivePrivateKey(path accounts.DerivationPath) (*ecdsa.PrivateKey, error) { | ||
var err error | ||
key := w.masterKey | ||
for _, n := range path { | ||
if w.fixIssue172 && key.IsAffectedByIssue172() { | ||
key, err = key.Derive(n) | ||
} else { | ||
//lint:ignore SA1019 this is used for testing only | ||
//nolint:all | ||
key, err = key.DeriveNonStandard(n) | ||
} | ||
if err != nil { | ||
return nil, err | ||
} | ||
} | ||
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privateKey, err := key.ECPrivKey() | ||
privateKeyECDSA := privateKey.ToECDSA() | ||
if err != nil { | ||
return nil, err | ||
} | ||
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return privateKeyECDSA, nil | ||
} | ||
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// derivePublicKey derives the public key of the derivation path. | ||
func (w *Wallet) derivePublicKey(path accounts.DerivationPath) (*ecdsa.PublicKey, error) { | ||
privateKeyECDSA, err := w.derivePrivateKey(path) | ||
if err != nil { | ||
return nil, err | ||
} | ||
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publicKey := privateKeyECDSA.Public() | ||
publicKeyECDSA, ok := publicKey.(*ecdsa.PublicKey) | ||
if !ok { | ||
return nil, errors.New("failed to get public key") | ||
} | ||
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return publicKeyECDSA, nil | ||
} | ||
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// DeriveAddress derives the account address of the derivation path. | ||
func (w *Wallet) deriveAddress(path accounts.DerivationPath) (common.Address, error) { | ||
publicKeyECDSA, err := w.derivePublicKey(path) | ||
if err != nil { | ||
return common.Address{}, err | ||
} | ||
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address := crypto.PubkeyToAddress(*publicKeyECDSA) | ||
return address, nil | ||
} |
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