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 := "7307597389635308713748674793997299267459594577423"
64 assert.Equal(t, expectedStr, txCompressedData.String())
65 assert.Equal(t, "0500040000000000030000000000020000c60be60f", hex.EncodeToString(txCompressedData.Bytes()))
66}
67
68func TestBytesDataAvailability(t *testing.T) {
69 tx := L1Tx{
70 FromIdx: 2,
71 ToIdx: 3,
72 Amount: big.NewInt(4),
73 TokenID: 5,
74 }
75 txCompressedData, err := tx.BytesDataAvailability(32)
76 assert.Nil(t, err)
77 assert.Equal(t, "0000000200000003000000", hex.EncodeToString(txCompressedData))
78
79 tx = L1Tx{
80 FromIdx: 2,
81 ToIdx: 3,
82 EffectiveAmount: big.NewInt(4),
83 TokenID: 5,
84 }
85 txCompressedData, err = tx.BytesDataAvailability(32)
86 assert.Nil(t, err)
87 assert.Equal(t, "0000000200000003000400", hex.EncodeToString(txCompressedData))
88}
89
90func TestL1TxFromDataAvailability(t *testing.T) {
91 tx := L1Tx{
92 FromIdx: 2,
93 ToIdx: 3,
94 Amount: big.NewInt(4),
95 }
96 txCompressedData, err := tx.BytesDataAvailability(32)
97 assert.Nil(t, err)
98 l1tx, err := L1TxFromDataAvailability(txCompressedData, 32)
99 assert.Equal(t, tx.FromIdx, l1tx.FromIdx)
100 assert.Equal(t, tx.ToIdx, l1tx.ToIdx)
101
102 tx = L1Tx{
103 FromIdx: 2,
104 ToIdx: 3,
105 EffectiveAmount: big.NewInt(4),
106 }
107 txCompressedData, err = tx.BytesDataAvailability(32)
108 assert.Nil(t, err)
109 l1tx, err = L1TxFromDataAvailability(txCompressedData, 32)
110 assert.Equal(t, tx.FromIdx, l1tx.FromIdx)
111 assert.Equal(t, tx.ToIdx, l1tx.ToIdx)
112 assert.Equal(t, tx.EffectiveAmount, l1tx.EffectiveAmount)
113}
114
115func TestL1userTxByteParsers(t *testing.T) {
116 var pkComp babyjub.PublicKeyComp
117 pkCompL := []byte("0x56ca90f80d7c374ae7485e9bcc47d4ac399460948da6aeeb899311097925a72c")
118 err := pkComp.UnmarshalText(pkCompL)
119 require.Nil(t, err)
120
121 pk, err := pkComp.Decompress()
122 require.Nil(t, err)
123
124 l1Tx := &L1Tx{
125 UserOrigin: true,
126 ToIdx: 3,
127 TokenID: 5,
128 Amount: big.NewInt(1),
129 LoadAmount: big.NewInt(2),
130 FromIdx: 2,
131 FromBJJ: pk,
132 FromEthAddr: ethCommon.HexToAddress("0xc58d29fA6e86E4FAe04DDcEd660d45BCf3Cb2370"),
133 }
134
135 encodedData, err := l1Tx.BytesUser()
136 require.Nil(t, err)
137 decodedData, err := L1UserTxFromBytes(encodedData)
138 require.Nil(t, err)
139 assert.Equal(t, l1Tx, decodedData)
140 encodedData2, err := decodedData.BytesUser()
141 require.Nil(t, err)
142 assert.Equal(t, encodedData, encodedData2)
143
144 // expect error if length!=68
145 _, err = L1UserTxFromBytes(encodedData[:66])
146 require.NotNil(t, err)
147 _, err = L1UserTxFromBytes([]byte{})
148 require.NotNil(t, err)
149 _, err = L1UserTxFromBytes(nil)
150 require.NotNil(t, err)
151}
152
153func TestL1TxByteParsersCompatibility(t *testing.T) {
154 // Data from compatibility test
155 var pkComp babyjub.PublicKeyComp
156 pkCompB, err := hex.DecodeString("0dd02deb2c81068e7a0f7e327df80b4ab79ee1f41a7def613e73a20c32eece5a")
157 require.Nil(t, err)
158 pkCompL := SwapEndianness(pkCompB)
159 err = pkComp.UnmarshalText([]byte(hex.EncodeToString(pkCompL)))
160 require.Nil(t, err)
161
162 pk, err := pkComp.Decompress()
163 require.Nil(t, err)
164
165 loadAmount := new(big.Int)
166 loadAmount.SetString("100000000000000000000", 10)
167 l1Tx := &L1Tx{
168 ToIdx: 87865485,
169 TokenID: 2098076,
170 Amount: big.NewInt(2400000000000000000),
171 LoadAmount: loadAmount,
172 FromIdx: Idx(29767899),
173 FromBJJ: pk,
174 FromEthAddr: ethCommon.HexToAddress("0x85dab5b9e2e361d0c208d77be90efcc0439b0a53"),
175 UserOrigin: true,
176 }
177
178 expected, err := utils.HexDecode("85dab5b9e2e361d0c208d77be90efcc0439b0a530dd02deb2c81068e7a0f7e327df80b4ab79ee1f41a7def613e73a20c32eece5a000001c638db8be880f00020039c0000053cb88d")
179 require.Nil(t, err)
180
181 encodedData, err := l1Tx.BytesUser()
182 require.Nil(t, err)
183 assert.Equal(t, expected, encodedData)
184}
185
186func TestL1CoordinatorTxByteParsers(t *testing.T) {
187 hermezAddress := ethCommon.HexToAddress("0xD6C850aeBFDC46D7F4c207e445cC0d6B0919BDBe")
188 chainID := big.NewInt(1337)
189 chainIDBytes := ethCommon.LeftPadBytes(chainID.Bytes(), 2)
190
191 privateKey, err := crypto.HexToECDSA("fad9c8855b740a0b7ed4c221dbad0f33a83a49cad6b3fe8d5817ac83d38b6a19")
192 require.Nil(t, err)
193
194 publicKey := privateKey.Public()
195 publicKeyECDSA, ok := publicKey.(*ecdsa.PublicKey)
196 if !ok {
197 log.Fatal("error casting public key to ECDSA")
198 }
199 publicKeyBytes := crypto.FromECDSAPub(publicKeyECDSA)
200 pubKey, err := crypto.UnmarshalPubkey(publicKeyBytes)
201 require.Nil(t, err)
202 fromEthAddr := crypto.PubkeyToAddress(*pubKey)
203 var pkComp babyjub.PublicKeyComp
204 pkCompL := []byte("56ca90f80d7c374ae7485e9bcc47d4ac399460948da6aeeb899311097925a72c")
205 err = pkComp.UnmarshalText(pkCompL)
206 require.Nil(t, err)
207 pk, err := pkComp.Decompress()
208 require.Nil(t, err)
209 bytesMessage1 := []byte("\x19Ethereum Signed Message:\n120")
210 bytesMessage2 := []byte("I authorize this babyjubjub key for hermez rollup account creation")
211
212 babyjub := pk.Compress()
213 babyjubB := SwapEndianness(babyjub[:])
214 var data []byte
215 data = append(data, bytesMessage1...)
216 data = append(data, bytesMessage2...)
217 data = append(data, babyjubB[:]...)
218 data = append(data, chainIDBytes...)
219 data = append(data, hermezAddress.Bytes()...)
220 hash := crypto.Keccak256Hash(data)
221 signature, err := crypto.Sign(hash.Bytes(), privateKey)
222 require.Nil(t, err)
223 // Ethereum adds 27 to v
224 v := int(signature[64])
225 signature[64] = byte(v + 27)
226
227 l1Tx := &L1Tx{
228 TokenID: 231,
229 FromBJJ: pk,
230 FromEthAddr: fromEthAddr,
231 Amount: big.NewInt(0),
232 LoadAmount: big.NewInt(0),
233 }
234
235 bytesCoordinatorL1, err := l1Tx.BytesCoordinatorTx(signature)
236 require.Nil(t, err)
237 l1txDecoded, err := L1CoordinatorTxFromBytes(bytesCoordinatorL1, chainID, hermezAddress)
238 require.Nil(t, err)
239 assert.Equal(t, l1Tx, l1txDecoded)
240 bytesCoordinatorL12, err := l1txDecoded.BytesCoordinatorTx(signature)
241 require.Nil(t, err)
242 assert.Equal(t, bytesCoordinatorL1, bytesCoordinatorL12)
243
244 // expect error if length!=68
245 _, err = L1CoordinatorTxFromBytes(bytesCoordinatorL1[:66], chainID, hermezAddress)
246 require.NotNil(t, err)
247 _, err = L1CoordinatorTxFromBytes([]byte{}, chainID, hermezAddress)
248 require.NotNil(t, err)
249 _, err = L1CoordinatorTxFromBytes(nil, chainID, hermezAddress)
250 require.NotNil(t, err)
251}
252
253func TestL1CoordinatorTxByteParsersCompatibility(t *testing.T) {
254 // Data from compatibility test
255 var signature []byte
256 r, err := hex.DecodeString("da71e5eb097e115405d84d1e7b464009b434b32c014a2df502d1f065ced8bc3b")
257 require.Nil(t, err)
258 s, err := hex.DecodeString("186d7122ff7f654cfed3156719774898d573900c86599a885a706dbdffe5ea8c")
259 require.Nil(t, err)
260 v, err := hex.DecodeString("1b")
261 require.Nil(t, err)
262
263 signature = append(signature, r[:]...)
264 signature = append(signature, s[:]...)
265 signature = append(signature, v[:]...)
266
267 var pkComp babyjub.PublicKeyComp
268 pkCompB, err := hex.DecodeString("a2c2807ee39c3b3378738cff85a46a9465bb8fcf44ea597c33da9719be7c259c")
269 require.Nil(t, err)
270 pkCompL := SwapEndianness(pkCompB)
271 err = pkComp.UnmarshalText([]byte(hex.EncodeToString(pkCompL)))
272 require.Nil(t, err)
273 // Data from the compatibility test
274 require.Nil(t, err)
275 pk, err := pkComp.Decompress()
276 require.Nil(t, err)
277 l1Tx := &L1Tx{
278 TokenID: 231,
279 FromBJJ: pk,
280 }
281
282 encodeData, err := l1Tx.BytesCoordinatorTx(signature)
283 require.Nil(t, err)
284
285 expected, err := utils.HexDecode("1b186d7122ff7f654cfed3156719774898d573900c86599a885a706dbdffe5ea8cda71e5eb097e115405d84d1e7b464009b434b32c014a2df502d1f065ced8bc3ba2c2807ee39c3b3378738cff85a46a9465bb8fcf44ea597c33da9719be7c259c000000e7")
286 require.Nil(t, err)
287
288 assert.Equal(t, expected, encodeData)
289}