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 TestL1userTxByteParsers(t *testing.T) {
53 var pkComp babyjub.PublicKeyComp
54 pkCompL := []byte("0x56ca90f80d7c374ae7485e9bcc47d4ac399460948da6aeeb899311097925a72c")
55 err := pkComp.UnmarshalText(pkCompL)
56 require.Nil(t, err)
57
58 pk, err := pkComp.Decompress()
59 require.Nil(t, err)
60
61 l1Tx := &L1Tx{
62 UserOrigin: true,
63 ToIdx: 3,
64 TokenID: 5,
65 Amount: big.NewInt(1),
66 LoadAmount: big.NewInt(2),
67 FromIdx: 2,
68 FromBJJ: pk,
69 FromEthAddr: ethCommon.HexToAddress("0xc58d29fA6e86E4FAe04DDcEd660d45BCf3Cb2370"),
70 }
71
72 encodedData, err := l1Tx.BytesUser()
73 require.Nil(t, err)
74 decodedData, err := L1UserTxFromBytes(encodedData)
75 require.Nil(t, err)
76 assert.Equal(t, l1Tx, decodedData)
77 encodedData2, err := decodedData.BytesUser()
78 require.Nil(t, err)
79 assert.Equal(t, encodedData, encodedData2)
80
81 // expect error if length!=68
82 _, err = L1UserTxFromBytes(encodedData[:66])
83 require.NotNil(t, err)
84 _, err = L1UserTxFromBytes([]byte{})
85 require.NotNil(t, err)
86 _, err = L1UserTxFromBytes(nil)
87 require.NotNil(t, err)
88}
89
90func TestL1TxByteParsersCompatibility(t *testing.T) {
91 // Data from compatibility test
92 var pkComp babyjub.PublicKeyComp
93 pkCompB, err := hex.DecodeString("0dd02deb2c81068e7a0f7e327df80b4ab79ee1f41a7def613e73a20c32eece5a")
94 require.Nil(t, err)
95 pkCompL := SwapEndianness(pkCompB)
96 err = pkComp.UnmarshalText([]byte(hex.EncodeToString(pkCompL)))
97 require.Nil(t, err)
98
99 pk, err := pkComp.Decompress()
100 require.Nil(t, err)
101
102 loadAmount := new(big.Int)
103 loadAmount.SetString("100000000000000000000", 10)
104 l1Tx := &L1Tx{
105 ToIdx: 87865485,
106 TokenID: 2098076,
107 Amount: big.NewInt(2400000000000000000),
108 LoadAmount: loadAmount,
109 FromIdx: Idx(29767899),
110 FromBJJ: pk,
111 FromEthAddr: ethCommon.HexToAddress("0x85dab5b9e2e361d0c208d77be90efcc0439b0a53"),
112 }
113
114 expected, err := utils.HexDecode("85dab5b9e2e361d0c208d77be90efcc0439b0a530dd02deb2c81068e7a0f7e327df80b4ab79ee1f41a7def613e73a20c32eece5a000001c638db8be880f00020039c0000053cb88d")
115 require.Nil(t, err)
116
117 encodedData, err := l1Tx.BytesUser()
118 require.Nil(t, err)
119 assert.Equal(t, expected, encodedData)
120}
121
122func TestL1CoordinatorTxByteParsers(t *testing.T) {
123 privateKey, err := crypto.HexToECDSA("fad9c8855b740a0b7ed4c221dbad0f33a83a49cad6b3fe8d5817ac83d38b6a19")
124 require.Nil(t, err)
125
126 publicKey := privateKey.Public()
127 publicKeyECDSA, ok := publicKey.(*ecdsa.PublicKey)
128 if !ok {
129 log.Fatal("error casting public key to ECDSA")
130 }
131 publicKeyBytes := crypto.FromECDSAPub(publicKeyECDSA)
132 pubKey, err := crypto.UnmarshalPubkey(publicKeyBytes)
133 require.Nil(t, err)
134 fromEthAddr := crypto.PubkeyToAddress(*pubKey)
135 var pkComp babyjub.PublicKeyComp
136 pkCompL := []byte("56ca90f80d7c374ae7485e9bcc47d4ac399460948da6aeeb899311097925a72c")
137 err = pkComp.UnmarshalText(pkCompL)
138 require.Nil(t, err)
139 pk, err := pkComp.Decompress()
140 require.Nil(t, err)
141 bytesMessage1 := []byte("\x19Ethereum Signed Message:\n98")
142 bytesMessage2 := []byte("I authorize this babyjubjub key for hermez rollup account creation")
143
144 babyjub := pk.Compress()
145 babyjubB := SwapEndianness(babyjub[:])
146 var data []byte
147 data = append(data, bytesMessage1...)
148 data = append(data, bytesMessage2...)
149 data = append(data, babyjubB[:]...)
150 hash := crypto.Keccak256Hash(data)
151 signature, err := crypto.Sign(hash.Bytes(), privateKey)
152 require.Nil(t, err)
153 // Ethereum adds 27 to v
154 v := int(signature[64])
155 signature[64] = byte(v + 27)
156
157 l1Tx := &L1Tx{
158 TokenID: 231,
159 FromBJJ: pk,
160 FromEthAddr: fromEthAddr,
161 Amount: big.NewInt(0),
162 LoadAmount: big.NewInt(0),
163 }
164
165 bytesCoordinatorL1, err := l1Tx.BytesCoordinatorTx(signature)
166 require.Nil(t, err)
167 l1txDecoded, err := L1CoordinatorTxFromBytes(bytesCoordinatorL1)
168 require.Nil(t, err)
169 assert.Equal(t, l1Tx, l1txDecoded)
170 bytesCoordinatorL12, err := l1txDecoded.BytesCoordinatorTx(signature)
171 require.Nil(t, err)
172 assert.Equal(t, bytesCoordinatorL1, bytesCoordinatorL12)
173
174 // expect error if length!=68
175 _, err = L1CoordinatorTxFromBytes(bytesCoordinatorL1[:66])
176 require.NotNil(t, err)
177 _, err = L1CoordinatorTxFromBytes([]byte{})
178 require.NotNil(t, err)
179 _, err = L1CoordinatorTxFromBytes(nil)
180 require.NotNil(t, err)
181}
182
183func TestL1CoordinatorTxByteParsersCompatibility(t *testing.T) {
184 // Data from compatibility test
185 var signature []byte
186 r, err := hex.DecodeString("da71e5eb097e115405d84d1e7b464009b434b32c014a2df502d1f065ced8bc3b")
187 require.Nil(t, err)
188 s, err := hex.DecodeString("186d7122ff7f654cfed3156719774898d573900c86599a885a706dbdffe5ea8c")
189 require.Nil(t, err)
190 v, err := hex.DecodeString("1b")
191 require.Nil(t, err)
192
193 signature = append(signature, r[:]...)
194 signature = append(signature, s[:]...)
195 signature = append(signature, v[:]...)
196
197 var pkComp babyjub.PublicKeyComp
198 pkCompB, err := hex.DecodeString("a2c2807ee39c3b3378738cff85a46a9465bb8fcf44ea597c33da9719be7c259c")
199 require.Nil(t, err)
200 pkCompL := SwapEndianness(pkCompB)
201 err = pkComp.UnmarshalText([]byte(hex.EncodeToString(pkCompL)))
202 require.Nil(t, err)
203 // Data from the compatibility test
204 require.Nil(t, err)
205 pk, err := pkComp.Decompress()
206 require.Nil(t, err)
207 l1Tx := &L1Tx{
208 TokenID: 231,
209 FromBJJ: pk,
210 }
211
212 encodeData, err := l1Tx.BytesCoordinatorTx(signature)
213 require.Nil(t, err)
214
215 expected, err := utils.HexDecode("1b186d7122ff7f654cfed3156719774898d573900c86599a885a706dbdffe5ea8cda71e5eb097e115405d84d1e7b464009b434b32c014a2df502d1f065ced8bc3ba2c2807ee39c3b3378738cff85a46a9465bb8fcf44ea597c33da9719be7c259c000000e7")
216 require.Nil(t, err)
217
218 assert.Equal(t, expected, encodeData)
219}