feat: support metamask eth sign

app/app.go

@@ -23,6 +23,7 @@ import (
 	"cosmossdk.io/client/v2/autocli"
 	"cosmossdk.io/core/appmodule"
 	authcodec "github.com/cosmos/cosmos-sdk/x/auth/codec"
+	ethcryptocodec "github.com/neutron-org/neutron/v5/x/crypto/codec"
 
 	appconfig "github.com/neutron-org/neutron/v5/app/config"
 
@@ -476,6 +477,9 @@ func New(
 	legacyAmino := encodingConfig.Amino
 	interfaceRegistry := encodingConfig.InterfaceRegistry
 
+	ethcryptocodec.RegisterLegacyAminoCodec(encodingConfig.Amino)
+	ethcryptocodec.RegisterInterfaces(encodingConfig.InterfaceRegistry)
+
 	bApp := baseapp.NewBaseApp(Name, logger, db, encodingConfig.TxConfig.TxDecoder(), baseAppOptions...)
 	bApp.SetCommitMultiStoreTracer(traceStore)
 	bApp.SetVersion(version.Version)

cmd/neutrond/root.go

@@ -3,6 +3,7 @@ package main
 import (
 	"errors"
 	"fmt"
+	"github.com/neutron-org/neutron/v5/x/crypto/keyring"
 	"io"
 	"os"
 	"path/filepath"
@@ -82,7 +83,8 @@ func NewRootCmd() (*cobra.Command, params.EncodingConfig) {
 		WithAccountRetriever(authtypes.AccountRetriever{}).
 		WithBroadcastMode(flags.BroadcastSync).
 		WithHomeDir(app.DefaultNodeHome).
-		WithViper("")
+		WithViper("").
+		WithKeyringOptions(keyring.Option())
 
 	// Allows you to add extra params to your client.toml
 	// gas, gas-price, gas-adjustment, fees, note, etc.

proto/neutron/crypto/v1beta1/ethsecp256k1/keys.proto

@@ -0,0 +1,21 @@
+syntax = "proto3";
+package neutron.crypto.v1beta1.ethsecp256k1;
+
+import "gogoproto/gogo.proto";
+
+option go_package = "github.com/neutron-org/neutron/v5/x/crypto/ethsecp256k1";
+
+// PubKey defines a type alias for an ecdsa.PublicKey that implements
+// Tendermint's PubKey interface. It represents the 33-byte compressed public
+// key format.
+message PubKey {
+  option (gogoproto.goproto_stringer) = false;
+
+  bytes key = 1;
+}
+
+// PrivKey defines a type alias for an ecdsa.PrivateKey that implements
+// Tendermint's PrivateKey interface.
+message PrivKey {
+  bytes key = 1;
+}

x/crypto/codec/amino.go

@@ -0,0 +1,21 @@
+package codec
+
+import (
+	"github.com/cosmos/cosmos-sdk/codec"
+	"github.com/cosmos/cosmos-sdk/codec/legacy"
+
+	"github.com/neutron-org/neutron/v5/x/crypto/ethsecp256k1"
+)
+
+// RegisterLegacyAminoCodec registers all crypto dependency types with the provided Amino
+// codec.
+func RegisterLegacyAminoCodec(cdc *codec.LegacyAmino) {
+	cdc.RegisterConcrete(&ethsecp256k1.PubKey{},
+		ethsecp256k1.PubKeyName, nil)
+	cdc.RegisterConcrete(&ethsecp256k1.PrivKey{},
+		ethsecp256k1.PrivKeyName, nil)
+
+	// NOTE: update SDK's amino codec to include the ethsecp256k1 keys.
+	// DO NOT REMOVE unless deprecated on the SDK.
+	legacy.Cdc = cdc
+}

x/crypto/codec/codec.go

@@ -0,0 +1,14 @@
+package codec
+
+import (
+	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
+	cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
+
+	"github.com/neutron-org/neutron/v5/x/crypto/ethsecp256k1"
+)
+
+// RegisterInterfaces register the Evmos key concrete types.
+func RegisterInterfaces(registry codectypes.InterfaceRegistry) {
+	registry.RegisterImplementations((*cryptotypes.PubKey)(nil), &ethsecp256k1.PubKey{})
+	registry.RegisterImplementations((*cryptotypes.PrivKey)(nil), &ethsecp256k1.PrivKey{})
+}

x/crypto/ethsecp256k1/benchmark_test.go

@@ -0,0 +1,29 @@
+package ethsecp256k1
+
+import (
+	"fmt"
+	"testing"
+)
+
+func BenchmarkGenerateKey(b *testing.B) {
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		_ = GenerateKey()
+	}
+}
+
+func BenchmarkPubKey_VerifySignature(b *testing.B) {
+	privKey := GenerateKey()
+	pubKey := privKey.PubKey()
+
+	b.ResetTimer()
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		msg := []byte(fmt.Sprintf("%10d", i))
+		sig, err := privKey.Sign(msg)
+		if err != nil {
+			b.Fatal(err)
+		}
+		pubKey.VerifySignature(msg, sig)
+	}
+}