package api import ( "fmt" "testing" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" "github.com/status-im/status-go/eth-node/crypto" "github.com/status-im/status-go/params" "github.com/status-im/status-go/services/personal" "github.com/status-im/status-go/t/utils" ) func TestHashMessage(t *testing.T) { backend := NewGethStatusBackend() config, err := utils.MakeTestNodeConfig(params.StatusChainNetworkID) require.NoError(t, err) require.NoError(t, backend.AccountManager().InitKeystore(config.KeyStoreDir)) err = backend.StartNode(config) require.NoError(t, err) defer func() { require.NoError(t, backend.StopNode()) }() key, err := crypto.GenerateKey() require.NoError(t, err) addr := crypto.PubkeyToAddress(key.PublicKey) scenarios := []struct { message string expectedHash string recoverMessage string }{ { message: "XYZ", expectedHash: "634349abf2de883d23e8b46972896c7652a06670c990410d3436d9b44db09e6b", recoverMessage: fmt.Sprintf("0x%x", "XYZ"), }, { message: "0xXYZ", expectedHash: "f9c57a8998c71a2c8d74d70abe6561838f0d6cb6d82bc85bd70afcc82368055c", recoverMessage: fmt.Sprintf("0x%x", "0xXYZ"), }, { message: "1122", expectedHash: "3f07e02a153f02bdf97d77161746257626e9c39e4c3cf59896365fd1e6a9c7c3", recoverMessage: fmt.Sprintf("0x%x", "1122"), }, { message: "0x1122", expectedHash: "86d79d0957efa9b7d91f1116e70d0ee934cb9cdeccefa07756aed2bee119a2f3", recoverMessage: "0x1122", }, } for _, s := range scenarios { t.Run(s.message, func(t *testing.T) { hash, err := HashMessage(s.message) require.Nil(t, err) require.Equal(t, s.expectedHash, fmt.Sprintf("%x", hash)) // simulate signature from external signer like a keycard sig, err := crypto.Sign(hash, key) require.NoError(t, err) sig[64] += 27 // Transform V from 0/1 to 27/28 according to the yellow paper // check that the message was wrapped correctly before hashing it recParams := personal.RecoverParams{ Message: s.recoverMessage, Signature: fmt.Sprintf("0x%x", sig), } recoveredAddr, err := backend.Recover(recParams) require.NoError(t, err) assert.Equal(t, addr, recoveredAddr) }) } }