hermez-node/common/l1tx_test.go
common/l1tx_test.goRaw
1package common
2
3import (
4 "crypto/ecdsa"
5 "encoding/hex"
6 "log"
7 "math/big"
8 "testing"
9
10 ethCommon "github.com/ethereum/go-ethereum/common"
11 "github.com/ethereum/go-ethereum/crypto"
12 "github.com/iden3/go-iden3-crypto/babyjub"
13 "github.com/iden3/go-iden3-crypto/utils"
14 "github.com/stretchr/testify/assert"
15 "github.com/stretchr/testify/require"
16)
17
18func TestNewL1UserTx(t *testing.T) {
19 toForge := int64(123456)
20 l1Tx := &L1Tx{
21 ToForgeL1TxsNum: &toForge,
22 Position: 71,
23 UserOrigin: true,
24 ToIdx: 301,
25 TokenID: 5,
26 Amount: big.NewInt(1),
27 LoadAmount: big.NewInt(2),
28 FromIdx: Idx(300),
29 }
30 l1Tx, err := NewL1Tx(l1Tx)
31 assert.Nil(t, err)
32 assert.Equal(t, "0x00000000000001e240004700", l1Tx.TxID.String())
33}
34
35func TestNewL1CoordinatorTx(t *testing.T) {
36 batchNum := BatchNum(51966)
37 l1Tx := &L1Tx{
38 Position: 88,
39 UserOrigin: false,
40 ToIdx: 301,
41 TokenID: 5,
42 Amount: big.NewInt(1),
43 LoadAmount: big.NewInt(2),
44 FromIdx: Idx(300),
45 BatchNum: &batchNum,
46 }
47 l1Tx, err := NewL1Tx(l1Tx)
48 assert.Nil(t, err)
49 assert.Equal(t, "0x01000000000000cafe005800", l1Tx.TxID.String())
50}
51
52func TestL1TxCompressedData(t *testing.T) {
53 tx := L1Tx{
54 FromIdx: 2,
55 ToIdx: 3,
56 Amount: big.NewInt(4),
57 TokenID: 5,
58 }
59 txCompressedData, err := tx.TxCompressedData()
60 assert.Nil(t, err)
61
62 // test vector value generated from javascript implementation
63 expectedStr := "7307597389635308713748674793997299267460566876160"
64 assert.Equal(t, expectedStr, txCompressedData.String())
65 assert.Equal(t, "050004000000000003000000000002000100000000", hex.EncodeToString(txCompressedData.Bytes()))
66}
67
68func TestL1userTxByteParsers(t *testing.T) {
69 var pkComp babyjub.PublicKeyComp
70 pkCompL := []byte("0x56ca90f80d7c374ae7485e9bcc47d4ac399460948da6aeeb899311097925a72c")
71 err := pkComp.UnmarshalText(pkCompL)
72 require.Nil(t, err)
73
74 pk, err := pkComp.Decompress()
75 require.Nil(t, err)
76
77 l1Tx := &L1Tx{
78 UserOrigin: true,
79 ToIdx: 3,
80 TokenID: 5,
81 Amount: big.NewInt(1),
82 LoadAmount: big.NewInt(2),
83 FromIdx: 2,
84 FromBJJ: pk,
85 FromEthAddr: ethCommon.HexToAddress("0xc58d29fA6e86E4FAe04DDcEd660d45BCf3Cb2370"),
86 }
87
88 encodedData, err := l1Tx.BytesUser()
89 require.Nil(t, err)
90 decodedData, err := L1UserTxFromBytes(encodedData)
91 require.Nil(t, err)
92 assert.Equal(t, l1Tx, decodedData)
93 encodedData2, err := decodedData.BytesUser()
94 require.Nil(t, err)
95 assert.Equal(t, encodedData, encodedData2)
96
97 // expect error if length!=68
98 _, err = L1UserTxFromBytes(encodedData[:66])
99 require.NotNil(t, err)
100 _, err = L1UserTxFromBytes([]byte{})
101 require.NotNil(t, err)
102 _, err = L1UserTxFromBytes(nil)
103 require.NotNil(t, err)
104}
105
106func TestL1TxByteParsersCompatibility(t *testing.T) {
107 // Data from compatibility test
108 var pkComp babyjub.PublicKeyComp
109 pkCompB, err := hex.DecodeString("0dd02deb2c81068e7a0f7e327df80b4ab79ee1f41a7def613e73a20c32eece5a")
110 require.Nil(t, err)
111 pkCompL := SwapEndianness(pkCompB)
112 err = pkComp.UnmarshalText([]byte(hex.EncodeToString(pkCompL)))
113 require.Nil(t, err)
114
115 pk, err := pkComp.Decompress()
116 require.Nil(t, err)
117
118 loadAmount := new(big.Int)
119 loadAmount.SetString("100000000000000000000", 10)
120 l1Tx := &L1Tx{
121 ToIdx: 87865485,
122 TokenID: 2098076,
123 Amount: big.NewInt(2400000000000000000),
124 LoadAmount: loadAmount,
125 FromIdx: Idx(29767899),
126 FromBJJ: pk,
127 FromEthAddr: ethCommon.HexToAddress("0x85dab5b9e2e361d0c208d77be90efcc0439b0a53"),
128 UserOrigin: true,
129 }
130
131 expected, err := utils.HexDecode("85dab5b9e2e361d0c208d77be90efcc0439b0a530dd02deb2c81068e7a0f7e327df80b4ab79ee1f41a7def613e73a20c32eece5a000001c638db8be880f00020039c0000053cb88d")
132 require.Nil(t, err)
133
134 encodedData, err := l1Tx.BytesUser()
135 require.Nil(t, err)
136 assert.Equal(t, expected, encodedData)
137}
138
139func TestL1CoordinatorTxByteParsers(t *testing.T) {
140 hermezAddress := ethCommon.HexToAddress("0xD6C850aeBFDC46D7F4c207e445cC0d6B0919BDBe")
141 chainID := big.NewInt(1337)
142 chainIDBytes := ethCommon.LeftPadBytes(chainID.Bytes(), 2)
143
144 privateKey, err := crypto.HexToECDSA("fad9c8855b740a0b7ed4c221dbad0f33a83a49cad6b3fe8d5817ac83d38b6a19")
145 require.Nil(t, err)
146
147 publicKey := privateKey.Public()
148 publicKeyECDSA, ok := publicKey.(*ecdsa.PublicKey)
149 if !ok {
150 log.Fatal("error casting public key to ECDSA")
151 }
152 publicKeyBytes := crypto.FromECDSAPub(publicKeyECDSA)
153 pubKey, err := crypto.UnmarshalPubkey(publicKeyBytes)
154 require.Nil(t, err)
155 fromEthAddr := crypto.PubkeyToAddress(*pubKey)
156 var pkComp babyjub.PublicKeyComp
157 pkCompL := []byte("56ca90f80d7c374ae7485e9bcc47d4ac399460948da6aeeb899311097925a72c")
158 err = pkComp.UnmarshalText(pkCompL)
159 require.Nil(t, err)
160 pk, err := pkComp.Decompress()
161 require.Nil(t, err)
162 bytesMessage1 := []byte("\x19Ethereum Signed Message:\n120")
163 bytesMessage2 := []byte("I authorize this babyjubjub key for hermez rollup account creation")
164
165 babyjub := pk.Compress()
166 babyjubB := SwapEndianness(babyjub[:])
167 var data []byte
168 data = append(data, bytesMessage1...)
169 data = append(data, bytesMessage2...)
170 data = append(data, babyjubB[:]...)
171 data = append(data, chainIDBytes...)
172 data = append(data, hermezAddress.Bytes()...)
173 hash := crypto.Keccak256Hash(data)
174 signature, err := crypto.Sign(hash.Bytes(), privateKey)
175 require.Nil(t, err)
176 // Ethereum adds 27 to v
177 v := int(signature[64])
178 signature[64] = byte(v + 27)
179
180 l1Tx := &L1Tx{
181 TokenID: 231,
182 FromBJJ: pk,
183 FromEthAddr: fromEthAddr,
184 Amount: big.NewInt(0),
185 LoadAmount: big.NewInt(0),
186 }
187
188 bytesCoordinatorL1, err := l1Tx.BytesCoordinatorTx(signature)
189 require.Nil(t, err)
190 l1txDecoded, err := L1CoordinatorTxFromBytes(bytesCoordinatorL1, chainID, hermezAddress)
191 require.Nil(t, err)
192 assert.Equal(t, l1Tx, l1txDecoded)
193 bytesCoordinatorL12, err := l1txDecoded.BytesCoordinatorTx(signature)
194 require.Nil(t, err)
195 assert.Equal(t, bytesCoordinatorL1, bytesCoordinatorL12)
196
197 // expect error if length!=68
198 _, err = L1CoordinatorTxFromBytes(bytesCoordinatorL1[:66], chainID, hermezAddress)
199 require.NotNil(t, err)
200 _, err = L1CoordinatorTxFromBytes([]byte{}, chainID, hermezAddress)
201 require.NotNil(t, err)
202 _, err = L1CoordinatorTxFromBytes(nil, chainID, hermezAddress)
203 require.NotNil(t, err)
204}
205
206func TestL1CoordinatorTxByteParsersCompatibility(t *testing.T) {
207 // Data from compatibility test
208 var signature []byte
209 r, err := hex.DecodeString("da71e5eb097e115405d84d1e7b464009b434b32c014a2df502d1f065ced8bc3b")
210 require.Nil(t, err)
211 s, err := hex.DecodeString("186d7122ff7f654cfed3156719774898d573900c86599a885a706dbdffe5ea8c")
212 require.Nil(t, err)
213 v, err := hex.DecodeString("1b")
214 require.Nil(t, err)
215
216 signature = append(signature, r[:]...)
217 signature = append(signature, s[:]...)
218 signature = append(signature, v[:]...)
219
220 var pkComp babyjub.PublicKeyComp
221 pkCompB, err := hex.DecodeString("a2c2807ee39c3b3378738cff85a46a9465bb8fcf44ea597c33da9719be7c259c")
222 require.Nil(t, err)
223 pkCompL := SwapEndianness(pkCompB)
224 err = pkComp.UnmarshalText([]byte(hex.EncodeToString(pkCompL)))
225 require.Nil(t, err)
226 // Data from the compatibility test
227 require.Nil(t, err)
228 pk, err := pkComp.Decompress()
229 require.Nil(t, err)
230 l1Tx := &L1Tx{
231 TokenID: 231,
232 FromBJJ: pk,
233 }
234
235 encodeData, err := l1Tx.BytesCoordinatorTx(signature)
236 require.Nil(t, err)
237
238 expected, err := utils.HexDecode("1b186d7122ff7f654cfed3156719774898d573900c86599a885a706dbdffe5ea8cda71e5eb097e115405d84d1e7b464009b434b32c014a2df502d1f065ced8bc3ba2c2807ee39c3b3378738cff85a46a9465bb8fcf44ea597c33da9719be7c259c000000e7")
239 require.Nil(t, err)
240
241 assert.Equal(t, expected, encodeData)
242}