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package common
import (
"encoding/hex"
"testing"
ethCommon "github.com/ethereum/go-ethereum/common"
ethCrypto "github.com/ethereum/go-ethereum/crypto"
"github.com/iden3/go-iden3-crypto/babyjub"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestAccountCreationAuthSignVerify(t *testing.T) {
// Ethereum key
ethSk, err := ethCrypto.HexToECDSA("fad9c8855b740a0b7ed4c221dbad0f33a83a49cad6b3fe8d5817ac83d38b6a19")
require.NoError(t, err)
ethAddr := ethCrypto.PubkeyToAddress(ethSk.PublicKey)
// BabyJubJub key
var sk babyjub.PrivateKey
_, err = hex.Decode(sk[:],
[]byte("0001020304050607080900010203040506070809000102030405060708090001"))
require.NoError(t, err)
chainID := uint16(0)
hermezContractAddr := ethCommon.HexToAddress("0xc344E203a046Da13b0B4467EB7B3629D0C99F6E6")
a := AccountCreationAuth{
EthAddr: ethAddr,
BJJ: sk.Public().Compress(),
}
// Sign using the Sign function (stores signature in a.Signature)
err = a.Sign(func(hash []byte) ([]byte, error) {
return ethCrypto.Sign(hash, ethSk)
}, chainID, hermezContractAddr)
require.NoError(t, err)
// Hash and sign manually and compare the generated signature
hash, err := a.HashToSign(chainID, hermezContractAddr)
require.NoError(t, err)
assert.Equal(t, "9414667457e658dd31949b82996b75c65a055512244c3bbfd22ff56add02ba65",
hex.EncodeToString(hash))
sig, err := ethCrypto.Sign(hash, ethSk)
require.NoError(t, err)
sig[64] += 27
assert.Equal(t, sig, a.Signature)
assert.True(t, a.VerifySignature(chainID, hermezContractAddr))
}
func TestKeccak256JSComp(t *testing.T) {
// check keccak256 compatible with js version
h := ethCrypto.Keccak256([]byte("test"))
assert.Equal(t, "9c22ff5f21f0b81b113e63f7db6da94fedef11b2119b4088b89664fb9a3cb658",
hex.EncodeToString(h))
}
func TestAccountCreationAuthJSComp(t *testing.T) {
// The values of this test have been tested with the js implementation
type testVector struct {
ethSk string
expectedAddress string
pkCompStr string
chainID uint16
hermezContractAddr string
toHashExpected string
hashExpected string
sigExpected string
}
var tvs []testVector
tv0 := testVector{
ethSk: "0000000000000000000000000000000000000000000000000000000000000001",
expectedAddress: "0x7E5F4552091A69125d5DfCb7b8C2659029395Bdf",
pkCompStr: "21b0a1688b37f77b1d1d5539ec3b826db5ac78b2513f574a04c50a7d4f8246d7",
chainID: uint16(4),
hermezContractAddr: "0x7e5f4552091a69125d5dfcb7b8c2659029395bdf",
toHashExpected: "190189658bba487e11c7da602676ee32bc90b77d3f32a305b147e4f3c3b35f19672e5d84ccc38d0ab245c469b719549d837113465c2abf9972c49403ca6fd10ed3dc",
hashExpected: "c56eba41e511df100c804c5c09288f35887efea4f033be956481af335df3bea2",
sigExpected: "dbedcc5ce02db8f48afbdb2feba9a3a31848eaa8fca5f312ce37b01db45d2199208335330d4445bd2f51d1db68dbc0d0bf3585c4a07504b4efbe46a69eaae5a21b",
}
tv1 := testVector{
ethSk: "0000000000000000000000000000000000000000000000000000000000000002",
expectedAddress: "0x2B5AD5c4795c026514f8317c7a215E218DcCD6cF",
pkCompStr: "093985b1993d9f743f9d7d943ed56f38601cb8b196db025f79650c4007c3054d",
chainID: uint16(0),
hermezContractAddr: "0x2b5ad5c4795c026514f8317c7a215e218dccd6cf",
toHashExpected: "1901dafbc253dedf90d6421dc6e25d5d9efc6985133cb2a8d363d0a081a0e3eddddc65f603a88de36aaeabd3b4cf586538c7f3fd50c94780530a3707c8c14ad9fd11",
hashExpected: "deb9afa479282cf27b442ce8ba86b19448aa87eacef691521a33db5d0feb9959",
sigExpected: "6a0da90ba2d2b1be679a28ebe54ee03082d44b836087391cd7d2607c1e4dafe04476e6e88dccb8707c68312512f16c947524b35c80f26c642d23953e9bb84c701c",
}
tv2 := testVector{
ethSk: "c5e8f61d1ab959b397eecc0a37a6517b8e67a0e7cf1f4bce5591f3ed80199122",
expectedAddress: "0xc783df8a850f42e7F7e57013759C285caa701eB6",
pkCompStr: "22870c1bcc451396202d62f566026eab8e438c6c91decf8ddf63a6c162619b52",
chainID: uint16(31337), // =0x7a69
hermezContractAddr: "0xf4e77E5Da47AC3125140c470c71cBca77B5c638c",
toHashExpected: "190167617949b934d7e01add4009cd3d47415a26727b7d6288e5dce33fb3721d5a1a9ce511b19b694c9aaf8183f4987ed752f24884c54c003d11daa2e98c7547a79e",
hashExpected: "157b570c597e615b8356ce008ac39f43bc9b6d50080bc07d968031b9378acbbb",
sigExpected: "a0766181102428b5672e523dc4b905c10ddf025c10dbd0b3534ef864632a14652737610041c670b302fc7dca28edd5d6eac42b72d69ce58da8ce21287b244e381b",
}
tvs = append(tvs, tv0)
tvs = append(tvs, tv1)
tvs = append(tvs, tv2)
for _, tv := range tvs {
// Ethereum key
ethSk, err := ethCrypto.HexToECDSA(tv.ethSk)
require.NoError(t, err)
ethAddr := ethCrypto.PubkeyToAddress(ethSk.PublicKey)
assert.Equal(t, tv.expectedAddress, ethAddr.Hex())
// BabyJubJub key
pkCompStr := tv.pkCompStr
pkComp, err := BJJFromStringWithChecksum(pkCompStr)
require.NoError(t, err)
chainID := tv.chainID
hermezContractAddr := ethCommon.HexToAddress(tv.hermezContractAddr)
a := AccountCreationAuth{
EthAddr: ethAddr,
BJJ: pkComp,
}
toHash, err := a.toHash(chainID, hermezContractAddr)
require.NoError(t, err)
assert.Equal(t, tv.toHashExpected,
hex.EncodeToString(toHash))
msg, err := a.HashToSign(chainID, hermezContractAddr)
require.NoError(t, err)
assert.Equal(t, tv.hashExpected,
hex.EncodeToString(msg))
// sign AccountCreationAuth with eth key
sig, err := ethCrypto.Sign(msg, ethSk)
require.NoError(t, err)
sig[64] += 27
assert.Equal(t, tv.sigExpected,
hex.EncodeToString(sig))
a.Signature = sig
assert.True(t, a.VerifySignature(chainID, hermezContractAddr))
}
}