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rpc: implement personal_importRawKey (#552)

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Federico Kunze 2020-09-30 02:34:01 +02:00 committed by GitHub
parent 592eca96bc
commit 811ca7f045
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 112 additions and 89 deletions
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4
CHANGELOG.md
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@ -37,6 +37,10 @@ Ref: https://keepachangelog.com/en/1.0.0/
## Unreleased
### Features
* (rpc) [\#552](https://github.com/ChainSafe/ethermint/pull/552) Implement Eth Personal namespace `personal_importRawKey`.
### Bug fixes
* (keys) [\#554](https://github.com/ChainSafe/ethermint/pull/554) Fix private key derivation.

4
crypto/algorithm.go
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@ -18,8 +18,10 @@ import (
)
const (
// EthSecp256k1Type string constant for the EthSecp256k1 algorithm
EthSecp256k1Type = "eth_secp256k1"
// EthSecp256k1 defines the ECDSA secp256k1 used on Ethereum
EthSecp256k1 = keys.SigningAlgo("eth_secp256k1")
EthSecp256k1 = keys.SigningAlgo(EthSecp256k1Type)
)
// SupportedAlgorithms defines the list of signing algorithms used on Ethermint:

2
rpc/apis.go
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@ -40,7 +40,7 @@ func GetRPCAPIs(cliCtx context.CLIContext, keys []emintcrypto.PrivKeySecp256k1)
{
Namespace: PersonalNamespace,
Version: apiVersion,
Service: NewPersonalEthAPI(cliCtx, ethAPI, nonceLock, keys),
Service: NewPersonalEthAPI(ethAPI),
Public: false,
},
{

2
rpc/eth_api.go
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@ -46,7 +46,7 @@ type PublicEthAPI struct {
chainIDEpoch *big.Int
logger log.Logger
backend Backend
keys []crypto.PrivKeySecp256k1
keys []crypto.PrivKeySecp256k1 // unlocked keys
nonceLock *AddrLocker
keybaseLock sync.Mutex
}

162
rpc/personal_api.go
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@ -5,43 +5,34 @@ import (
"context"
"fmt"
"os"
"sync"
"time"
sdkcontext "github.com/cosmos/cosmos-sdk/client/context"
"github.com/spf13/viper"
"github.com/cosmos/cosmos-sdk/client/flags"
"github.com/cosmos/cosmos-sdk/crypto/keys"
"github.com/cosmos/cosmos-sdk/crypto/keys/mintkey"
sdk "github.com/cosmos/cosmos-sdk/types"
emintcrypto "github.com/cosmos/ethermint/crypto"
params "github.com/cosmos/ethermint/rpc/args"
"github.com/spf13/viper"
"github.com/tendermint/tendermint/libs/log"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/crypto"
emintcrypto "github.com/cosmos/ethermint/crypto"
params "github.com/cosmos/ethermint/rpc/args"
)
// PersonalEthAPI is the eth_ prefixed set of APIs in the Web3 JSON-RPC spec.
// PersonalEthAPI is the personal_ prefixed set of APIs in the Web3 JSON-RPC spec.
type PersonalEthAPI struct {
logger log.Logger
cliCtx sdkcontext.CLIContext
ethAPI *PublicEthAPI
nonceLock *AddrLocker
keys []emintcrypto.PrivKeySecp256k1
keyInfos []keys.Info
keybaseLock sync.Mutex
keyInfos []keys.Info // all keys, both locked and unlocked. unlocked keys are stored in ethAPI.keys
}
// NewPersonalEthAPI creates an instance of the public ETH Web3 API.
func NewPersonalEthAPI(cliCtx sdkcontext.CLIContext, ethAPI *PublicEthAPI, nonceLock *AddrLocker, keys []emintcrypto.PrivKeySecp256k1) *PersonalEthAPI {
// NewPersonalEthAPI creates an instance of the public Personal Eth API.
func NewPersonalEthAPI(ethAPI *PublicEthAPI) *PersonalEthAPI {
api := &PersonalEthAPI{
logger: log.NewTMLogger(log.NewSyncWriter(os.Stdout)).With("module", "json-rpc"),
cliCtx: cliCtx,
ethAPI: ethAPI,
nonceLock: nonceLock,
keys: keys,
}
infos, err := api.getKeybaseInfo()
@ -54,43 +45,68 @@ func NewPersonalEthAPI(cliCtx sdkcontext.CLIContext, ethAPI *PublicEthAPI, nonce
}
func (e *PersonalEthAPI) getKeybaseInfo() ([]keys.Info, error) {
e.keybaseLock.Lock()
defer e.keybaseLock.Unlock()
e.ethAPI.keybaseLock.Lock()
defer e.ethAPI.keybaseLock.Unlock()
if e.cliCtx.Keybase == nil {
if e.ethAPI.cliCtx.Keybase == nil {
keybase, err := keys.NewKeyring(
sdk.KeyringServiceName(),
viper.GetString(flags.FlagKeyringBackend),
viper.GetString(flags.FlagHome),
e.cliCtx.Input,
e.ethAPI.cliCtx.Input,
emintcrypto.EthSecp256k1Options()...,
)
if err != nil {
return nil, err
}
e.cliCtx.Keybase = keybase
e.ethAPI.cliCtx.Keybase = keybase
}
return e.cliCtx.Keybase.List()
return e.ethAPI.cliCtx.Keybase.List()
}
// ImportRawKey stores the given hex encoded ECDSA key into the key directory,
// encrypting it with the passphrase.
// Currently, this is not implemented since the feature is not supported by the keys.
// ImportRawKey armors and encrypts a given raw hex encoded ECDSA key and stores it into the key directory.
// The name of the key will have the format "personal_<length-keys>", where <length-keys> is the total number of
// keys stored on the keyring.
// NOTE: The key will be both armored and encrypted using the same passphrase.
func (e *PersonalEthAPI) ImportRawKey(privkey, password string) (common.Address, error) {
e.logger.Debug("personal_importRawKey", "error", "not implemented")
_, err := crypto.HexToECDSA(privkey)
e.ethAPI.logger.Debug("personal_importRawKey")
priv, err := crypto.HexToECDSA(privkey)
if err != nil {
return common.Address{}, err
}
return common.Address{}, nil
privKey := emintcrypto.PrivKeySecp256k1(crypto.FromECDSA(priv))
armor := mintkey.EncryptArmorPrivKey(privKey, password, emintcrypto.EthSecp256k1Type)
// ignore error as we only care about the length of the list
list, _ := e.ethAPI.cliCtx.Keybase.List()
privKeyName := fmt.Sprintf("personal_%d", len(list))
if err := e.ethAPI.cliCtx.Keybase.ImportPrivKey(privKeyName, armor, password); err != nil {
return common.Address{}, err
}
addr := common.BytesToAddress(privKey.PubKey().Address().Bytes())
info, err := e.ethAPI.cliCtx.Keybase.Get(privKeyName)
if err != nil {
return common.Address{}, err
}
// append key and info to be able to lock and list the account
//e.ethAPI.keys = append(e.ethAPI.keys, privKey)
e.keyInfos = append(e.keyInfos, info)
e.ethAPI.logger.Info("key successfully imported", "name", privKeyName, "address", addr.String())
return addr, nil
}
// ListAccounts will return a list of addresses for accounts this node manages.
func (e *PersonalEthAPI) ListAccounts() ([]common.Address, error) {
e.logger.Debug("personal_listAccounts")
e.ethAPI.logger.Debug("personal_listAccounts")
addrs := []common.Address{}
for _, info := range e.keyInfos {
addressBytes := info.GetPubKey().Address().Bytes()
@ -103,18 +119,7 @@ func (e *PersonalEthAPI) ListAccounts() ([]common.Address, error) {
// LockAccount will lock the account associated with the given address when it's unlocked.
// It removes the key corresponding to the given address from the API's local keys.
func (e *PersonalEthAPI) LockAccount(address common.Address) bool {
e.logger.Debug("personal_lockAccount", "address", address)
for i, key := range e.keys {
if !bytes.Equal(key.PubKey().Address().Bytes(), address.Bytes()) {
continue
}
tmp := make([]emintcrypto.PrivKeySecp256k1, len(e.keys)-1)
copy(tmp[:i], e.keys[:i])
copy(tmp[i:], e.keys[i+1:])
e.keys = tmp
return true
}
e.ethAPI.logger.Debug("personal_lockAccount", "address", address.String())
for i, key := range e.ethAPI.keys {
if !bytes.Equal(key.PubKey().Address().Bytes(), address.Bytes()) {
@ -125,6 +130,8 @@ func (e *PersonalEthAPI) LockAccount(address common.Address) bool {
copy(tmp[:i], e.ethAPI.keys[:i])
copy(tmp[i:], e.ethAPI.keys[i+1:])
e.ethAPI.keys = tmp
e.ethAPI.logger.Debug("account unlocked", "address", address.String())
return true
}
@ -133,37 +140,24 @@ func (e *PersonalEthAPI) LockAccount(address common.Address) bool {
// NewAccount will create a new account and returns the address for the new account.
func (e *PersonalEthAPI) NewAccount(password string) (common.Address, error) {
e.logger.Debug("personal_newAccount")
e.ethAPI.logger.Debug("personal_newAccount")
_, err := e.getKeybaseInfo()
if err != nil {
return common.Address{}, err
}
name := "key_" + time.Now().UTC().Format(time.RFC3339)
info, _, err := e.cliCtx.Keybase.CreateMnemonic(name, keys.English, password, emintcrypto.EthSecp256k1)
info, _, err := e.ethAPI.cliCtx.Keybase.CreateMnemonic(name, keys.English, password, emintcrypto.EthSecp256k1)
if err != nil {
return common.Address{}, err
}
e.keyInfos = append(e.keyInfos, info)
// update ethAPI
privKey, err := e.cliCtx.Keybase.ExportPrivateKeyObject(name, password)
if err != nil {
return common.Address{}, err
}
emintKey, ok := privKey.(emintcrypto.PrivKeySecp256k1)
if !ok {
return common.Address{}, fmt.Errorf("invalid private key type: %T", privKey)
}
e.ethAPI.keys = append(e.ethAPI.keys, emintKey)
e.logger.Debug("personal_newAccount", "address", fmt.Sprintf("0x%x", emintKey.PubKey().Address().Bytes()))
addr := common.BytesToAddress(info.GetPubKey().Address().Bytes())
e.logger.Info("Your new key was generated", "address", addr)
e.logger.Info("Please backup your key file!", "path", os.Getenv("HOME")+"/.ethermintcli/"+name)
e.logger.Info("Please remember your password!")
e.ethAPI.logger.Info("Your new key was generated", "address", addr.String())
e.ethAPI.logger.Info("Please backup your key file!", "path", os.Getenv("HOME")+"/.ethermintcli/"+name)
e.ethAPI.logger.Info("Please remember your password!")
return addr, nil
}
@ -171,24 +165,30 @@ func (e *PersonalEthAPI) NewAccount(password string) (common.Address, error) {
// the given password for duration seconds. If duration is nil it will use a
// default of 300 seconds. It returns an indication if the account was unlocked.
// It exports the private key corresponding to the given address from the keyring and stores it in the API's local keys.
func (e *PersonalEthAPI) UnlockAccount(ctx context.Context, addr common.Address, password string, _ *uint64) (bool, error) {
e.logger.Debug("personal_unlockAccount", "address", addr)
func (e *PersonalEthAPI) UnlockAccount(_ context.Context, addr common.Address, password string, _ *uint64) (bool, error) { // nolint: interfacer
e.ethAPI.logger.Debug("personal_unlockAccount", "address", addr.String())
// TODO: use duration
name := ""
var keyInfo keys.Info
for _, info := range e.keyInfos {
addressBytes := info.GetPubKey().Address().Bytes()
if bytes.Equal(addressBytes, addr[:]) {
name = info.GetName()
keyInfo = info
break
}
}
if name == "" {
return false, fmt.Errorf("cannot find key with given address")
if keyInfo == nil {
return false, fmt.Errorf("cannot find key with given address %s", addr.String())
}
// TODO: this only works on local keys
privKey, err := e.cliCtx.Keybase.ExportPrivateKeyObject(name, password)
// exporting private key only works on local keys
if keyInfo.GetType() != keys.TypeLocal {
return false, fmt.Errorf("key type must be %s, got %s", keys.TypeLedger.String(), keyInfo.GetType().String())
}
privKey, err := e.ethAPI.cliCtx.Keybase.ExportPrivateKeyObject(keyInfo.GetName(), password)
if err != nil {
return false, err
}
@ -198,17 +198,15 @@ func (e *PersonalEthAPI) UnlockAccount(ctx context.Context, addr common.Address,
return false, fmt.Errorf("invalid private key type: %T", privKey)
}
e.keys = append(e.keys, emintKey)
e.ethAPI.keys = append(e.ethAPI.keys, emintKey)
e.logger.Debug("personal_unlockAccount", "address", fmt.Sprintf("0x%x", emintKey.PubKey().Address().Bytes()))
e.ethAPI.logger.Debug("account unlocked", "address", addr.String())
return true, nil
}
// SendTransaction will create a transaction from the given arguments and
// tries to sign it with the key associated with args.To. If the given password isn't
// able to decrypt the key it fails.
func (e *PersonalEthAPI) SendTransaction(ctx context.Context, args params.SendTxArgs, passwd string) (common.Hash, error) {
func (e *PersonalEthAPI) SendTransaction(_ context.Context, args params.SendTxArgs, _ string) (common.Hash, error) {
return e.ethAPI.SendTransaction(args)
}
@ -221,12 +219,12 @@ func (e *PersonalEthAPI) SendTransaction(ctx context.Context, args params.SendTx
// The key used to calculate the signature is decrypted with the given password.
//
// https://github.com/ethereum/go-ethereum/wiki/Management-APIs#personal_sign
func (e *PersonalEthAPI) Sign(ctx context.Context, data hexutil.Bytes, addr common.Address, passwd string) (hexutil.Bytes, error) {
e.logger.Debug("personal_sign", "data", data, "address", addr)
func (e *PersonalEthAPI) Sign(_ context.Context, data hexutil.Bytes, addr common.Address, _ string) (hexutil.Bytes, error) {
e.ethAPI.logger.Debug("personal_sign", "data", data, "address", addr.String())
key, ok := checkKeyInKeyring(e.keys, addr)
key, ok := checkKeyInKeyring(e.ethAPI.keys, addr)
if !ok {
return nil, fmt.Errorf("cannot find key with given address")
return nil, fmt.Errorf("cannot find key with address %s", addr.String())
}
sig, err := crypto.Sign(accounts.TextHash(data), key.ToECDSA())
@ -248,8 +246,8 @@ func (e *PersonalEthAPI) Sign(ctx context.Context, data hexutil.Bytes, addr comm
// the V value must be 27 or 28 for legacy reasons.
//
// https://github.com/ethereum/go-ethereum/wiki/Management-APIs#personal_ecRecove
func (e *PersonalEthAPI) EcRecover(ctx context.Context, data, sig hexutil.Bytes) (common.Address, error) {
e.logger.Debug("personal_ecRecover", "data", data, "sig", sig)
func (e *PersonalEthAPI) EcRecover(_ context.Context, data, sig hexutil.Bytes) (common.Address, error) {
e.ethAPI.logger.Debug("personal_ecRecover", "data", data, "sig", sig)
if len(sig) != crypto.SignatureLength {
return common.Address{}, fmt.Errorf("signature must be %d bytes long", crypto.SignatureLength)
@ -259,9 +257,9 @@ func (e *PersonalEthAPI) EcRecover(ctx context.Context, data, sig hexutil.Bytes)
}
sig[crypto.RecoveryIDOffset] -= 27 // Transform yellow paper V from 27/28 to 0/1
rpk, err := crypto.SigToPub(accounts.TextHash(data), sig)
pubkey, err := crypto.SigToPub(accounts.TextHash(data), sig)
if err != nil {
return common.Address{}, err
}
return crypto.PubkeyToAddress(*rpk), nil
return crypto.PubkeyToAddress(*pubkey), nil
}

23
tests/personal_test.go
View File

@ -6,6 +6,7 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
ethcrypto "github.com/ethereum/go-ethereum/crypto"
"github.com/stretchr/testify/require"
)
@ -42,6 +43,24 @@ func TestPersonal_Sign(t *testing.T) {
// TODO: check that signature is same as with geth, requires importing a key
}
func TestPersonal_ImportRawKey(t *testing.T) {
privkey, err := ethcrypto.GenerateKey()
require.NoError(t, err)
// parse priv key to hex
hexPriv := common.Bytes2Hex(ethcrypto.FromECDSA(privkey))
rpcRes := call(t, "personal_importRawKey", []string{hexPriv, "password"})
var res hexutil.Bytes
err = json.Unmarshal(rpcRes.Result, &res)
require.NoError(t, err)
addr := ethcrypto.PubkeyToAddress(privkey.PublicKey)
resAddr := common.BytesToAddress(res)
require.Equal(t, addr.String(), resAddr.String())
}
func TestPersonal_EcRecover(t *testing.T) {
data := hexutil.Bytes{0x88}
rpcRes := call(t, "personal_sign", []interface{}{data, hexutil.Bytes(from), ""})
@ -67,7 +86,7 @@ func TestPersonal_UnlockAccount(t *testing.T) {
// try to sign, should be locked
_, err = callWithError("personal_sign", []interface{}{hexutil.Bytes{0x88}, addr, ""})
require.NotNil(t, err)
require.Error(t, err)
rpcRes = call(t, "personal_unlockAccount", []interface{}{addr, ""})
var unlocked bool
@ -104,5 +123,5 @@ func TestPersonal_LockAccount(t *testing.T) {
// try to sign, should be locked
_, err = callWithError("personal_sign", []interface{}{hexutil.Bytes{0x88}, addr, ""})
require.NotNil(t, err)
require.Error(t, err)
}