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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,154 @@ | ||
| package common | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/asn1" | ||
| "math/big" | ||
| "testing" | ||
|
|
||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/mock" | ||
|
|
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| "cloud.google.com/go/kms/apiv1/kmspb" | ||
| "github.com/cosmos/cosmos-sdk/crypto/keys/secp256k1" | ||
| dcrecSecp256k1 "github.com/decred/dcrd/dcrec/secp256k1/v4" | ||
| "github.com/ethereum/go-ethereum/common" | ||
| gax "github.com/googleapis/gax-go/v2" | ||
| ) | ||
|
|
||
| // MockGCPKeyManagementClient is a mock implementation of GCPKeyManagementClient | ||
| type MockGCPKeyManagementClient struct { | ||
| mock.Mock | ||
| } | ||
|
|
||
| func (m *MockGCPKeyManagementClient) Close() error { | ||
| args := m.Called() | ||
| return args.Error(0) | ||
| } | ||
|
|
||
| func (m *MockGCPKeyManagementClient) GetPublicKey(ctx context.Context, req *kmspb.GetPublicKeyRequest, opts ...gax.CallOption) (*kmspb.PublicKey, error) { | ||
| args := m.Called(ctx, req, opts) | ||
| return args.Get(0).(*kmspb.PublicKey), args.Error(1) | ||
| } | ||
|
|
||
| func (m *MockGCPKeyManagementClient) AsymmetricSign(ctx context.Context, req *kmspb.AsymmetricSignRequest, opts ...gax.CallOption) (*kmspb.AsymmetricSignResponse, error) { | ||
| args := m.Called(ctx, req, opts) | ||
| return args.Get(0).(*kmspb.AsymmetricSignResponse), args.Error(1) | ||
| } | ||
|
|
||
| func (m *MockGCPKeyManagementClient) GetCryptoKeyVersion(ctx context.Context, req *kmspb.GetCryptoKeyVersionRequest, opts ...gax.CallOption) (*kmspb.CryptoKeyVersion, error) { | ||
| args := m.Called(ctx, req, opts) | ||
| return args.Get(0).(*kmspb.CryptoKeyVersion), args.Error(1) | ||
| } | ||
|
|
||
| func mockASN1Signature() []byte { | ||
| r, _ := new(big.Int).SetString("0adb0cad4842abd2003c8dcf4f2663b1ba9106b208a8b9f62aaa628121d7e818", 16) | ||
| s, _ := new(big.Int).SetString("05a2e4ace4f4dae5437804d8ff3a67151e96d0efad0427cb49844ea80c3a03a5", 16) | ||
| return asn1Bytes(r, s) | ||
| } | ||
|
|
||
| func mockPublicKey() []byte { | ||
| keyHex := "0459fe4b6a8682418cb86df571c0a36b06f1b37e6760985009599c31d783c6ccac6cb07ba459e7d4949d12b178f8468802ebf7d932007e46b02fc7a2bf90761fd6" | ||
| return common.Hex2Bytes(keyHex) | ||
| } | ||
|
|
||
| func asn1Bytes(r, s *big.Int) []byte { | ||
| signature, _ := asn1.Marshal(struct { | ||
| R, S *big.Int | ||
| }{R: r, S: s}) | ||
| return signature | ||
| } | ||
|
|
||
| // Unit tests for GcpKmsSigner | ||
| func TestNewGcpKmsSigner(t *testing.T) { | ||
| mockClient := new(MockGCPKeyManagementClient) | ||
| NewGCPKeyManagementClient = func(ctx context.Context) (GCPKeyManagementClient, error) { | ||
| return mockClient, nil | ||
| } | ||
|
|
||
| keyName := "test-key" | ||
| expectedKeyVersion := &kmspb.CryptoKeyVersion{ | ||
| Algorithm: kmspb.CryptoKeyVersion_EC_SIGN_SECP256K1_SHA256, | ||
| } | ||
| mockClient.On("GetCryptoKeyVersion", mock.Anything, &kmspb.GetCryptoKeyVersionRequest{Name: keyName}, mock.Anything).Return(expectedKeyVersion, nil) | ||
|
|
||
| expectedPublicKey := &kmspb.PublicKey{ | ||
| Pem: "-----BEGIN PUBLIC KEY-----\nMFYwEAYHKoZIzj0CAQYFK4EEAAoDQgAEWf5LaoaCQYy4bfVxwKNrBvGzfmdgmFAJ\nWZwx14PGzKxssHukWefUlJ0SsXj4RogC6/fZMgB+RrAvx6K/kHYf1g==\n-----END PUBLIC KEY-----", | ||
| } | ||
| mockClient.On("GetPublicKey", mock.Anything, &kmspb.GetPublicKeyRequest{Name: keyName}, mock.Anything).Return(expectedPublicKey, nil) | ||
|
|
||
| signer, err := NewGcpKmsSigner(keyName) | ||
| assert.NoError(t, err) | ||
| assert.NotNil(t, signer) | ||
|
|
||
| mockClient.AssertExpectations(t) | ||
| } | ||
|
|
||
| func TestGcpKmsSigner_EthSign(t *testing.T) { | ||
| mockClient := new(MockGCPKeyManagementClient) | ||
| keyName := "test-key" | ||
| ethAddress := common.HexToAddress("0xE14FE42D9Cf3C39c27E1c1Ca3dAa033C43eD4d88") | ||
|
|
||
| signer := &GcpKmsSigner{ | ||
| client: mockClient, | ||
| keyName: keyName, | ||
| ethAddress: ethAddress, | ||
| } | ||
|
|
||
| data := []byte("example transaction data") | ||
| // expectedHash := crypto.Keccak256(data) | ||
| expectedSignature := &kmspb.AsymmetricSignResponse{ | ||
| Signature: mockASN1Signature(), | ||
| } | ||
| mockClient.On("AsymmetricSign", mock.Anything, mock.Anything, mock.Anything).Return(expectedSignature, nil) | ||
|
|
||
| sig, err := signer.EthSign(data) | ||
| assert.NoError(t, err) | ||
| assert.NotNil(t, sig) | ||
|
|
||
| mockClient.AssertExpectations(t) | ||
| } | ||
|
|
||
| func TestGcpKmsSigner_CosmosSign(t *testing.T) { | ||
| mockClient := new(MockGCPKeyManagementClient) | ||
| keyName := "test-key" | ||
|
|
||
| pubKeyBytes := mockPublicKey() | ||
| secp256k1PubKey, _ := dcrecSecp256k1.ParsePubKey(pubKeyBytes) | ||
| cosmosPubKey := &secp256k1.PubKey{Key: secp256k1PubKey.SerializeCompressed()} | ||
|
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||
| signer := &GcpKmsSigner{ | ||
| client: mockClient, | ||
| keyName: keyName, | ||
| secp256k1PubKey: secp256k1PubKey, | ||
| cosmosPubKey: cosmosPubKey, | ||
| } | ||
|
|
||
| data := []byte("example transaction data") | ||
| // expectedHash := crypto.Keccak256(data) | ||
| expectedSignature := &kmspb.AsymmetricSignResponse{ | ||
| Signature: mockASN1Signature(), | ||
| } | ||
| mockClient.On("AsymmetricSign", mock.Anything, mock.Anything, mock.Anything).Return(expectedSignature, nil) | ||
|
|
||
| sig, err := signer.CosmosSign(data) | ||
| assert.NoError(t, err) | ||
| assert.NotNil(t, sig) | ||
|
|
||
| mockClient.AssertExpectations(t) | ||
| } | ||
|
|
||
| func TestGcpKmsSigner_Destroy(t *testing.T) { | ||
| mockClient := new(MockGCPKeyManagementClient) | ||
| keyName := "test-key" | ||
|
|
||
| signer := &GcpKmsSigner{ | ||
| client: mockClient, | ||
| keyName: keyName, | ||
| } | ||
|
|
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| mockClient.On("Close").Return(nil) | ||
|
|
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| signer.Destroy() | ||
| mockClient.AssertExpectations(t) | ||
| } |
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